:root {
  color-scheme: light;
  --font-primary: "Noto Sans Thai", "Leelawadee UI", Tahoma, "Segoe UI", sans-serif;
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-soft: #f1f5f9;
  --surface-glass: rgba(255, 255, 255, 0.84);
  --line: #e2e8f0;
  --line-strong: #cbd5e1;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-soft: rgba(37, 99, 235, 0.12);
  --on-primary: #ffffff;
  --on-danger: #ffffff;
  --on-sidebar: #ffffff;
  --on-success: #052e20;
  --teal: #0f766e;
  --amber: #f59e0b;
  --red: #e11d48;
  --green: #10b981;
  --purple: #8b5cf6;
  --info: #0ea5e9;
  --success: var(--green);
  --warning: var(--amber);
  --danger: var(--red);
  --shadow-sm: 0 6px 18px rgba(15, 23, 42, 0.08);
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 26px 70px rgba(15, 23, 42, 0.18);
  --sidebar: #0f172a;
  --sidebar-soft: #172033;
  --sidebar-line: rgba(255, 255, 255, 0.12);
  --radius-sm: 10px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --theme-index: 0;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --motion-fast: 140ms;
  --motion-med: 220ms;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #08111f;
  --surface: #111827;
  --surface-soft: #1e293b;
  --surface-glass: rgba(15, 23, 42, 0.86);
  --line: rgba(148, 163, 184, 0.28);
  --line-strong: rgba(148, 163, 184, 0.44);
  --text: #e5edf7;
  --muted: #9fb0c3;
  --primary: #60a5fa;
  --primary-dark: #93c5fd;
  --primary-soft: rgba(96, 165, 250, 0.16);
  --on-primary: #06162c;
  --on-danger: #2a0618;
  --on-sidebar: #ffffff;
  --on-success: #052e20;
  --teal: #2dd4bf;
  --amber: #fbbf24;
  --red: #fb7185;
  --green: #34d399;
  --purple: #c084fc;
  --info: #38bdf8;
  --shadow-sm: 0 8px 20px rgba(0, 0, 0, 0.28);
  --shadow: 0 20px 55px rgba(0, 0, 0, 0.36);
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.45);
  --sidebar: #09111f;
  --sidebar-soft: #111827;
  --sidebar-line: rgba(148, 163, 184, 0.2);
  --theme-index: 1;
}

:root[data-theme-target="light"] {
  --theme-index: 0;
}

:root[data-theme-target="dark"] {
  --theme-index: 1;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-primary);
  font-size: 15px;
  line-height: 1.5;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

a {
  color: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.app-shell.is-sidebar-collapsed {
  grid-template-columns: 76px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.28) transparent;
  scrollbar-gutter: stable;
  direction: rtl;
  background: var(--sidebar);
  color: #f8fafc;
  border-right: 1px solid var(--sidebar-line);
}

.sidebar > * {
  direction: ltr;
}

.sidebar::-webkit-scrollbar {
  width: 7px;
}

.sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.22);
  border-radius: 999px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.36);
}

@keyframes viewEnter {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes modalEnter {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes fadeEnter {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes toastEnter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.brand {
  padding: 20px 18px 18px;
  border-bottom: 1px solid var(--sidebar-line);
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: #f8fafc;
  color: var(--sidebar);
  font-weight: 800;
  margin-bottom: 12px;
}

.brand h1 {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.25;
}

.brand p {
  margin: 4px 0 0;
  color: #b9c4d6;
  font-size: 0.9rem;
}

.app-shell.is-sidebar-collapsed .brand {
  padding: 16px 10px 10px;
  display: grid;
  place-items: center;
}

.app-shell.is-sidebar-collapsed .brand-mark {
  margin-bottom: 0;
}

.app-shell.is-sidebar-collapsed .brand-text,
.app-shell.is-sidebar-collapsed .sidebar-title,
.app-shell.is-sidebar-collapsed .nav-label,
.app-shell.is-sidebar-collapsed .nav-count {
  display: none;
}

.app-shell.is-sidebar-collapsed .sidebar-section {
  padding: 10px;
}

.app-shell.is-sidebar-collapsed .nav-list {
  justify-items: center;
}

.app-shell.is-sidebar-collapsed .nav-button {
  width: 44px;
  min-height: 44px;
  grid-template-columns: 1fr;
  justify-items: center;
  padding: 8px;
}

.app-shell.is-sidebar-collapsed .nav-icon {
  width: 26px;
  height: 26px;
}

.sidebar-section {
  padding: 14px 12px 6px;
}

.sidebar-title {
  margin: 0 8px 8px;
  color: #91a0b8;
  font-size: 0.76rem;
  font-weight: 700;
}

.nav-list {
  display: grid;
  gap: 4px;
}

.nav-button {
  width: 100%;
  min-height: 40px;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: #dbe4f0;
  text-align: left;
}

.nav-button:hover,
.nav-button.active {
  background: var(--sidebar-soft);
  border-color: var(--sidebar-line);
  color: #ffffff;
}

.nav-icon {
  width: 24px;
  height: 24px;
  display: inline-grid;
  place-items: center;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 800;
}

.nav-count {
  min-width: 22px;
  padding: 1px 6px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.12);
  color: #ced8e7;
  font-size: 0.72rem;
  text-align: center;
}

.main {
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 4;
  min-height: 72px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.btn.mobile-menu {
  display: inline-flex;
}

.page-title h2 {
  margin: 0;
  font-size: 1.25rem;
}

.page-title p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.user-pill {
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: var(--surface);
}

.avatar {
  width: 28px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: #e8f0fe;
  color: var(--primary-dark);
  font-weight: 800;
  flex: 0 0 auto;
}

.content {
  padding: 22px 24px 32px;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(31, 111, 235, 0.08), rgba(15, 118, 110, 0.08)),
    var(--bg);
}

.login-panel {
  width: min(980px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1fr);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.login-info {
  padding: 34px;
  background: #101827;
  color: #ffffff;
}

.login-info h1 {
  margin: 0 0 14px;
  font-size: 1.8rem;
}

.login-info p {
  color: #c6d2e3;
}

.login-stats {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.login-stat {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.login-form {
  padding: 34px;
}

.login-form h2 {
  margin: 0 0 18px;
  font-size: 1.35rem;
}

.login-form .form-field {
  margin-bottom: 12px;
}

.quick-logins {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 14px 0;
}

.quick-login {
  min-height: 46px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--text);
  text-align: left;
}

.quick-login strong,
.quick-login span {
  display: block;
  overflow-wrap: anywhere;
}

.quick-login span {
  color: var(--muted);
  font-size: 0.82rem;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.panel,
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(24, 34, 53, 0.04);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.panel-header h3,
.panel-header h4 {
  margin: 0;
}

.panel-header p {
  margin: 2px 0 0;
  color: var(--muted);
}

.panel-body {
  padding: 18px;
}

.metric-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 42px;
  align-items: center;
  gap: 14px;
  padding: 16px;
}

.metric-label {
  color: var(--muted);
  font-weight: 700;
  font-size: 0.86rem;
}

.metric-value {
  margin-top: 4px;
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.1;
}

.metric-note {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.85rem;
}

.metric-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #e8f0fe;
  color: var(--primary-dark);
  font-weight: 800;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.attendance-makeup {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}

.attendance-makeup .select {
  width: auto;
  min-width: 132px;
}

.att-status-buttons {
  display: grid;
  grid-template-columns: repeat(4, minmax(68px, 1fr));
  gap: 6px;
}

.att-status-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.att-status-btn {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  background: #ffffff;
  color: var(--muted);
  user-select: none;
}

.att-status-input:checked + .att-status-btn.status-present {
  border-color: var(--green);
  background: #e6f6ea;
  color: var(--green);
}

.att-status-input:checked + .att-status-btn.status-absent {
  border-color: var(--red);
  background: #fdebea;
  color: var(--red);
}

.att-status-input:checked + .att-status-btn.status-sick {
  border-color: var(--purple);
  background: #f0e9fb;
  color: var(--purple);
}

.att-status-input:checked + .att-status-btn.status-leave {
  border-color: var(--primary-dark);
  background: #e8f0fe;
  color: var(--primary-dark);
}


.attendance-overview-inline {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.attendance-overview-inline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.attendance-overview-inline-header h3 {
  color: #172033;
  font-size: 1.02rem;
  line-height: 1.4;
}

.attendance-overview-inline-header p {
  max-width: 1000px;
  margin-top: 4px;
  color: #6b7688;
  font-size: 0.86rem;
}

.attendance-overview-inline-body {
  padding: 0;
}
.attendance-overview-panel {
  margin-top: 16px;
}

.attendance-overview-toolbar {
  align-items: end;
}

.attendance-overview-wrap {
  max-height: 70vh;
  overflow: auto !important; /* เปิดสิทธิ์ให้กล่องนี้เลื่อนขึ้นลงและซ้ายขวาได้อิสระ */
}

.attendance-overview-table {
  min-width: 1320px;
  table-layout: fixed;
  font-size: 0.86rem;
}

.attendance-overview-table th,
.attendance-overview-table td {
  padding: 6px;
  text-align: center;
  vertical-align: middle;
}

.attendance-overview-table thead th {
  position: sticky;
  top: 0;
  z-index: 3;
  background: #eef4ff;
}

.attendance-overview-table .student-index-col,
.attendance-overview-table .student-code-col,
.attendance-overview-table .student-name-col {
  position: sticky;
  z-index: 2;
  background: #ffffff;
}

.attendance-overview-table thead .student-index-col,
.attendance-overview-table thead .student-code-col,
.attendance-overview-table thead .student-name-col {
  z-index: 4;
  background: #eef4ff;
}

.attendance-overview-table .student-index-col {
  left: 0;
  width: 54px;
}

.attendance-overview-table .student-code-col {
  left: 54px;
  width: 112px;
}

.attendance-overview-table .student-name-col {
  left: 166px;
  width: 220px;
  text-align: left;
}

.attendance-date-col {
  width: 86px;
}

.attendance-date-col.is-closed {
  background: #fff1f1;
  color: var(--red);
}

.attendance-date-head {
  min-height: 92px;
  display: grid;
  align-content: start;
  justify-items: center;
  gap: 3px;
}

.attendance-date-head strong {
  font-size: 1rem;
}

.attendance-date-head span,
.attendance-date-head small {
  display: block;
  line-height: 1.15;
}

.attendance-date-head small {
  max-width: 74px;
  color: var(--red);
  font-size: 0.72rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.attendance-delete-day {
  min-height: 24px;
  padding: 2px 7px;
  font-size: 0.74rem;
}

.attendance-day-cell {
  height: 34px;
}

.attendance-day-cell.is-closed {
  background: #fff7f7;
}

.attendance-day-cell.is-inactive {
  background: #f1f5f9;
}

.attendance-day-cell.has-record span {
  min-width: 34px;
  min-height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-weight: 800;
}

.attendance-day-cell.status-present span {
  background: #e6f6ea;
  color: var(--green);
}

.attendance-day-cell.status-late span {
  background: #fff4dc;
  color: var(--amber);
}

.attendance-day-cell.status-sick span {
  background: #f0e9fb;
  color: var(--purple);
}

.attendance-day-cell.status-leave span {
  background: #e8f0fe;
  color: var(--primary-dark);
}

.attendance-day-cell.status-absent span {
  background: #fdebea;
  color: var(--red);
}

.attendance-daily-panel {
  margin-bottom: 16px;
}

.attendance-daily-head-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.attendance-daily-toolbar {
  align-items: end;
}

.attendance-daily-meta {
  margin-bottom: 12px;
  text-align: center;
}

.attendance-daily-title {
  font-size: 1.06rem;
  font-weight: 800;
}

.attendance-daily-subtitle {
  color: var(--muted);
  font-size: 0.9rem;
}

.attendance-daily-wrap {
  overflow-x: auto;
}

.attendance-daily-table {
  min-width: 980px;
  table-layout: fixed;
  font-size: 0.9rem;
}

.attendance-daily-table th,
.attendance-daily-table td {
  padding: 6px;
  text-align: center;
  vertical-align: middle;
}

.attendance-daily-table .left {
  text-align: left;
  padding-left: 8px;
}

.attendance-daily-table thead th {
  background: #eef4ff;
}

.attendance-daily-table tfoot th {
  background: #edf4ff;
}

.attendance-daily-signatures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 14px;
}

.attendance-daily-signature-block {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  padding: 12px;
}

.attendance-daily-signature-line {
  margin: 10px 0;
  border-bottom: 1px dotted var(--line-strong);
  padding-bottom: 4px;
  text-align: center;
  font-size: 0.88rem;
}

.attendance-daily-signature-note {
  text-align: center;
  color: var(--muted);
  font-size: 0.84rem;
}

.attendance-daily-duty {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.88rem;
}

.search {
  width: min(320px, 100%);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.form-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.form-field {
  display: grid;
  gap: 6px;
}

.form-field.full {
  grid-column: 1 / -1;
}

.form-field label {
  color: var(--muted);
  font-weight: 700;
  font-size: 0.86rem;
}

.school-timetable-settings,
.timetable-builder {
  display: grid;
  gap: 12px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.timetable-settings-table {
  margin-top: 4px;
}

.timetable-settings-table table {
  min-width: 480px;
}

.timetable-settings-table .input {
  max-width: 160px;
}

.timetable-row-list {
  display: grid;
  gap: 10px;
}

.timetable-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(150px, 0.8fr) minmax(190px, 0.9fr);
  gap: 10px;
  align-items: end;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}

.timetable-row-title {
  display: grid;
  gap: 3px;
  align-self: center;
}

.input,
.select,
.textarea {
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  outline: none;
}

.textarea {
  min-height: 86px;
  resize: vertical;
}

.readonly-field {
  min-height: 40px;
  display: flex;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  color: var(--text);
}

.select[multiple] {
  min-height: 128px;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(74px, 1fr));
  gap: 8px;
}

.checkbox-grid.wide {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.check-option {
  min-height: 38px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  font-weight: 700;
}

.check-option input {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.14);
}

.btn {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  border-color: var(--primary);
}

.btn.primary {
  border-color: var(--primary);
  background: var(--primary);
  color: #ffffff;
}

.btn.danger {
  border-color: var(--red);
  background: var(--red);
  color: #ffffff;
}

.btn.success {
  border-color: var(--green);
  background: var(--green);
  color: #ffffff;
}

.btn.ghost {
  background: transparent;
}

.btn.small {
  min-height: 32px;
  padding: 5px 9px;
  font-size: 0.88rem;
}

.btn.icon-only {
  width: 38px;
  padding: 0;
}

.status {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 800;
  background: #edf2f7;
  color: #475569;
  white-space: nowrap;
}

.status.green {
  background: #e6f6ea;
  color: var(--green);
}

.status.red {
  background: #fdebea;
  color: var(--red);
}

.status.amber {
  background: #fff4dc;
  color: var(--amber);
}

.status.blue {
  background: #e8f0fe;
  color: var(--primary-dark);
}

.status.teal {
  background: #e2f5f2;
  color: var(--teal);
}

.status.purple {
  background: #f0e9fb;
  color: var(--purple);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 780px;
}

th,
td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: #344158;
  background: var(--surface-soft);
  font-size: 0.86rem;
  font-weight: 800;
  white-space: nowrap;
}

td {
  color: var(--text);
}

tr:last-child td {
  border-bottom: 0;
}

.table-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.grade-workspace {
  display: grid;
  gap: 14px;
  margin-bottom: 14px;
}

.grade-filter-shell {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(240px, 1.35fr) minmax(160px, 0.75fr) minmax(130px, 0.6fr);
  align-items: end;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 252, 0.96)),
    var(--surface);
}

.grade-filter-shell .compact {
  max-width: 150px;
}

.grade-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.grade-stat {
  min-height: 82px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.grade-stat span {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
}

.grade-stat strong {
  display: block;
  margin-top: 4px;
  font-size: 1.55rem;
  line-height: 1.1;
}

.pp5-export-band {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border: 1px solid rgba(15, 118, 110, 0.22);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(240, 253, 250, 0.94) 0%, rgba(255, 255, 255, 0.98) 54%, rgba(255, 247, 237, 0.94) 100%),
    var(--surface);
}

.pp5-copy {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-width: 0;
}

.pp5-copy h4 {
  margin: 0;
  font-size: 1rem;
}

.pp5-copy p {
  max-width: 720px;
  margin: 3px 0 0;
  color: var(--muted);
}

.pp5-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
  flex: 0 0 auto;
}

.pp5-actions .select {
  min-width: 132px;
}

[data-grade-form] .table-wrap {
  border-color: var(--line-strong);
}

[data-grade-form] td .input {
  min-width: 86px;
  max-width: 112px;
  min-height: 34px;
  padding: 6px 8px;
  text-align: right;
}

.pp5-section {
  display: grid;
  gap: 12px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.pp5-term-section {
  display: grid;
  gap: 12px;
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.pp5-term-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.pp5-term-heading h4 {
  margin: 0;
  font-size: 1.05rem;
}

.pp5-term-heading p {
  margin: 3px 0 0;
  color: var(--muted);
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.section-heading h4 {
  margin: 0;
  font-size: 1rem;
}

.section-heading p {
  margin: 3px 0 0;
  color: var(--muted);
}

.pp5-table {
  min-width: 960px;
}

.pp5-table th,
.pp5-table td {
  vertical-align: middle;
}

.pp5-table .input,
.pp5-table .select {
  min-width: 92px;
}

.pp5-student-table {
  --pp5-no-col: 96px;
  --pp5-name-col: 280px;
  table-layout: fixed;
}

.pp5-student-table th.pp5-col-no,
.pp5-student-table td.pp5-col-no-cell {
  width: var(--pp5-no-col);
  min-width: var(--pp5-no-col);
  max-width: var(--pp5-no-col);
  text-align: left;
}

.pp5-student-table th.pp5-col-name,
.pp5-student-table td.pp5-col-name-cell {
  width: var(--pp5-name-col);
  min-width: var(--pp5-name-col);
  max-width: var(--pp5-name-col);
  text-align: left;
}

.pp5-student-table td.pp5-col-name-cell {
  white-space: normal;
  overflow-wrap: anywhere;
  line-height: 1.45;
}

.unit-table {
  min-width: 1600px;
}

.unit-indicator-cell {
  display: grid;
  grid-template-columns: minmax(170px, 1fr) 86px;
  gap: 8px;
  align-items: center;
}

.unit-indicator-cell .select {
  width: 100%;
}

.unit-max-input {
  min-width: 74px !important;
  max-width: 86px;
  text-align: right;
}

.score-matrix {
  min-width: 1240px;
}

.score-matrix th {
  white-space: normal;
  min-width: 96px;
}

.score-matrix td .input {
  min-width: 78px;
  max-width: 96px;
  text-align: right;
}

.score-total-col,
.score-total-cell {
  background: #f8fafc;
}

.empty {
  padding: 28px 16px;
  color: var(--muted);
  text-align: center;
}

.tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.tab {
  min-height: 36px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-weight: 800;
}

.tab.active {
  background: #e8f0fe;
  border-color: #b7cef8;
  color: var(--primary-dark);
}

.progress {
  height: 9px;
  overflow: hidden;
  border-radius: 99px;
  background: #e6edf7;
}

.progress span {
  display: block;
  height: 100%;
  width: var(--value);
  background: var(--primary);
}

.list {
  display: grid;
  gap: 10px;
}

.list-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.list-item strong,
.list-item span {
  overflow-wrap: anywhere;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 0.86rem;
}

.money {
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
}

.calendar-cell {
  min-height: 96px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.calendar-cell.out {
  background: #edf2f7;
  color: #94a3b8;
}

.calendar-date {
  font-weight: 800;
  margin-bottom: 4px;
}

.calendar-event {
  display: block;
  margin-top: 4px;
  padding: 3px 6px;
  border-radius: 6px;
  background: #e8f0fe;
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.report-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 16px;
}

.chart-bars {
  display: grid;
  gap: 10px;
}

.bar-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) 54px;
  gap: 10px;
  align-items: center;
}

.bar-track {
  height: 22px;
  border-radius: 7px;
  overflow: hidden;
  background: #e6edf7;
}

.bar-fill {
  width: var(--value);
  height: 100%;
  background: var(--primary);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: start center;
  padding: 40px 18px;
  background: rgba(10, 18, 30, 0.55);
  overflow: auto;
}

.modal {
  width: min(920px, 100%);
  background: var(--surface);
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.modal-header h3 {
  margin: 0;
}

.modal-body {
  padding: 18px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px 18px;
  border-top: 1px solid var(--line);
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  max-width: min(420px, calc(100vw - 36px));
  padding: 12px 14px;
  border-radius: 8px;
  background: #101827;
  color: #ffffff;
  box-shadow: var(--shadow);
}

.drawer-open .sidebar {
  transform: translateX(0);
}

@media (prefers-reduced-motion: no-preference) {
  .app-shell {
    transition: grid-template-columns var(--motion-med) var(--ease);
  }

  .sidebar,
  .brand,
  .brand-mark,
  .brand-text,
  .nav-label,
  .nav-count,
  .topbar,
  .content,
  .panel,
  .card,
  .metric-card,
  .list-item,
  .calendar-cell,
  .table-wrap,
  .btn,
  .quick-login,
  .status,
  .user-pill,
  .input,
  .select,
  .textarea {
    transition:
      background-color var(--motion-fast) var(--ease),
      border-color var(--motion-fast) var(--ease),
      box-shadow var(--motion-fast) var(--ease),
      color var(--motion-fast) var(--ease),
      opacity var(--motion-fast) var(--ease),
      transform var(--motion-fast) var(--ease);
  }

  .nav-button {
    transition:
      background-color var(--motion-fast) var(--ease),
      border-color var(--motion-fast) var(--ease),
      color var(--motion-fast) var(--ease),
      transform var(--motion-fast) var(--ease);
  }

  .nav-button:hover,
  .btn:hover,
  .quick-login:hover {
    transform: translateY(-1px);
  }

  .content > *,
  .panel,
  .card,
  .metric-card,
  .list-item,
  .calendar-cell,
  .table-wrap {
    animation: viewEnter var(--motion-med) var(--ease) both;
  }

  .modal-backdrop {
    animation: fadeEnter var(--motion-med) var(--ease) both;
  }

  .modal {
    animation: modalEnter var(--motion-med) var(--ease) both;
  }

  .toast {
    animation: toastEnter var(--motion-med) var(--ease) both;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 1120px) {
  .grid.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid.three,
  .report-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    z-index: 12;
    width: min(300px, 86vw);
    transform: translateX(-105%);
    transition: transform 0.2s ease;
  }

  .app-shell.is-sidebar-collapsed {
    grid-template-columns: 1fr;
  }

  .app-shell.is-sidebar-collapsed .sidebar {
    width: min(300px, 86vw);
  }

  .app-shell.is-sidebar-collapsed .brand-text,
  .app-shell.is-sidebar-collapsed .sidebar-title {
    display: block;
  }

  .app-shell.is-sidebar-collapsed .nav-label,
  .app-shell.is-sidebar-collapsed .nav-count {
    display: inline;
  }

  .app-shell.is-sidebar-collapsed .brand {
    padding: 20px 18px 18px;
    display: block;
  }

  .app-shell.is-sidebar-collapsed .brand-mark {
    margin-bottom: 12px;
  }

  .app-shell.is-sidebar-collapsed .sidebar-section {
    padding: 14px 12px 6px;
  }

  .app-shell.is-sidebar-collapsed .nav-list {
    justify-items: stretch;
  }

  .app-shell.is-sidebar-collapsed .nav-button {
    width: 100%;
    min-height: 40px;
    grid-template-columns: 26px minmax(0, 1fr) auto;
    justify-items: stretch;
    padding: 9px 10px;
  }

  .app-shell.is-sidebar-collapsed .nav-icon {
    width: 24px;
    height: 24px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 16px;
  }

  .top-actions {
    justify-content: flex-start;
  }

  .content {
    padding: 18px 16px 28px;
  }

  .login-panel,
  .grid.two,
  .grid.four,
  .form-grid,
  .form-grid.three,
  .grade-filter-shell,
  .grade-stat-grid {
    grid-template-columns: 1fr;
  }

  .login-info,
  .login-form {
    padding: 24px;
  }

  .grade-filter-shell .compact {
    max-width: none;
  }

  .pp5-export-band {
    align-items: stretch;
    flex-direction: column;
  }

  .pp5-actions {
    justify-content: flex-start;
  }

  .attendance-daily-head-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .attendance-daily-signatures {
    grid-template-columns: 1fr;
  }

  .calendar-grid {
    grid-template-columns: 1fr;
  }

  .calendar-cell {
    min-height: auto;
  }

  .bar-row {
    grid-template-columns: 88px minmax(0, 1fr) 46px;
  }
}

@media print {
  .sidebar,
  .topbar,
  .toolbar,
  .btn,
  .tabs {
    display: none !important;
  }

  .app-shell {
    display: block;
  }

  .content {
    padding: 0;
  }

  .panel,
  .card,
  .table-wrap {
    box-shadow: none;
  }
}

/* Production UI refresh */
:root {
  --bg: #f3f6fa;
  --surface: #ffffff;
  --surface-soft: #f7f9fc;
  --surface-raised: #ffffff;
  --line: #dfe5ee;
  --line-strong: #c6d0de;
  --text: #172033;
  --muted: #667085;
  --primary: #1769e0;
  --primary-dark: #124fa8;
  --primary-soft: #eaf2ff;
  --teal: #087f6b;
  --amber: #a86408;
  --red: #c23b45;
  --green: #287a45;
  --purple: #7252aa;
  --shadow: 0 12px 30px rgba(30, 43, 67, 0.08);
  --shadow-soft: 0 3px 12px rgba(30, 43, 67, 0.05);
  --sidebar: #172033;
  --sidebar-soft: #222d43;
  --sidebar-line: rgba(255, 255, 255, 0.09);
  --focus-ring: 0 0 0 3px rgba(23, 105, 224, 0.18);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --motion-fast: 150ms;
  --motion-med: 260ms;
}

html {
  color-scheme: light;
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  background: var(--bg);
  font-family: "Noto Sans Thai", "Sarabun", "Leelawadee UI", "Tahoma", "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.55;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: #dceaff;
  color: #10264b;
}

button,
input,
select,
textarea {
  letter-spacing: 0;
}

button,
[role="button"],
.check-option,
.tab {
  -webkit-tap-highlight-color: transparent;
}

:where(button, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.app-shell {
  grid-template-columns: 272px minmax(0, 1fr);
}

.app-shell.is-sidebar-collapsed {
  grid-template-columns: 78px minmax(0, 1fr);
}

.main {
  min-height: 100vh;
  background: var(--bg);
}

.sidebar {
  z-index: 10;
  box-shadow: 8px 0 24px rgba(18, 28, 46, 0.06);
}

.brand {
  min-height: 124px;
  padding: 22px 18px 18px;
  background: rgba(255, 255, 255, 0.02);
}

.brand-mark {
  width: 46px;
  height: 46px;
  margin-bottom: 13px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 8px;
  background: #ffffff;
  color: #172033;
  box-shadow: 0 7px 18px rgba(4, 10, 20, 0.2);
  overflow: hidden;
  flex: 0 0 auto;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.brand h1 {
  max-width: 220px;
  color: #ffffff;
  font-size: 1.07rem;
  line-height: 1.4;
}

.brand p {
  max-width: 220px;
  margin-top: 5px;
  color: #aebbd0;
  font-size: 0.82rem;
  line-height: 1.4;
}

.sidebar-section {
  padding: 16px 12px 4px;
}

.sidebar-section:last-child {
  padding-bottom: 20px;
}

.sidebar-title {
  margin: 0 10px 7px;
  color: #8594ad;
  font-size: 0.72rem;
  letter-spacing: 0;
  cursor: pointer;
  user-select: none;
  list-style: none;
}

.sidebar-title::-webkit-details-marker {
  display: none;
}

.sidebar-section:not([open]) .nav-list {
  display: none;
}

.nav-list {
  gap: 3px;
}

.nav-button {
  position: relative;
  min-height: 43px;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  gap: 9px;
  padding: 8px 10px;
  border-radius: 7px;
  color: #d5deec;
  font-size: 0.92rem;
}

.nav-button:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: transparent;
}

.nav-button.active {
  background: #2a3851;
  border-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  box-shadow: inset 3px 0 #5da8ff;
}

.nav-icon {
  position: relative;
  width: 27px;
  height: 27px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.08);
  color: #eaf1fb;
  font-size: 0.68rem;
  overflow: hidden;
}

.nav-icon img {
  position: absolute;
  inset: 2px;
  width: calc(100% - 4px);
  height: calc(100% - 4px);
  display: block;
  object-fit: contain;
}

.nav-icon.has-image .nav-icon-fallback {
  visibility: hidden;
}

.nav-button.active .nav-icon {
  border-color: rgba(121, 184, 255, 0.28);
  background: rgba(84, 158, 242, 0.18);
}

.nav-count {
  min-width: 24px;
  padding: 2px 7px;
  background: rgba(255, 255, 255, 0.1);
  color: #d7e2f1;
  font-variant-numeric: tabular-nums;
}

.school-logo-editor {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  align-items: center;
  gap: 20px;
  margin-bottom: 22px;
  padding: 18px;
  border-radius: 8px;
  background: var(--surface-soft);
  box-shadow: inset 0 0 0 1px var(--line);
}

.school-logo-preview {
  display: grid;
  place-items: center;
}

.school-logo-preview .school-logo-mark {
  width: 96px;
  height: 96px;
  margin: 0;
  border-color: var(--line-strong);
  color: var(--text);
  box-shadow: var(--shadow-soft);
}

.school-logo-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  min-width: 0;
}

.school-logo-controls > div {
  flex: 1 1 260px;
}

.school-logo-controls h4,
.school-logo-controls p {
  margin: 0;
}

.school-logo-controls p,
.school-logo-controls small {
  color: var(--muted);
}

.school-logo-controls small {
  flex-basis: 100%;
}

.school-logo-file-button {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.school-logo-file-button input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.school-logo-remove {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--red);
  cursor: pointer;
}

.school-logo-remove input {
  width: 17px;
  height: 17px;
}

.login-security-note {
  display: grid;
  gap: 4px;
  margin-top: 24px;
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.login-security-note strong {
  color: #ffffff;
}

.login-security-note span {
  color: #b9c4d6;
  font-size: 0.9rem;
}

.app-shell.is-sidebar-collapsed .brand {
  min-height: 76px;
  padding: 15px 10px;
}

.app-shell.is-sidebar-collapsed .nav-button {
  width: 46px;
  min-height: 46px;
}

.topbar {
  min-height: 76px;
  display: grid;
  grid-template-columns: minmax(280px, 1fr) auto;
  padding: 12px clamp(16px, 2vw, 30px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: #e4e9f1;
  box-shadow: 0 1px 0 rgba(22, 32, 51, 0.02);
}

.topbar > .toolbar-group {
  min-width: 0;
  flex-wrap: nowrap;
}

.btn.mobile-menu {
  flex: 0 0 auto;
  border-color: #cfd8e5;
  background: #ffffff;
}

.menu-lines {
  width: 18px;
  display: grid;
  gap: 4px;
}

.menu-lines i {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.page-title {
  min-width: 0;
}

.page-title h2 {
  overflow: hidden;
  color: #172033;
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-title p {
  overflow: hidden;
  margin-top: 3px;
  color: #6d788c;
  font-size: 0.82rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.top-actions {
  flex-wrap: nowrap;
  gap: 7px;
}

.top-actions .btn {
  background: #ffffff;
}

.user-pill {
  min-width: 0;
  min-height: 42px;
  padding: 5px 11px 5px 6px;
  border-color: #d7dfeb;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(25, 38, 60, 0.04);
}

.user-pill > span:last-child {
  overflow: hidden;
  max-width: 160px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.avatar {
  width: 31px;
  height: 31px;
  border-radius: 7px;
  background: #e6f4ee;
  color: #17633b;
}

.content {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  padding: 24px clamp(16px, 2vw, 30px) 44px;
}

.grid {
  gap: 16px;
}

.panel,
.card {
  border-color: #dfe5ee;
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.dashboard-chart-shell {
  display: grid;
  grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
  gap: 16px;
  align-items: center;
}

.donut-chart {
  width: 180px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: conic-gradient(#1769e0 calc(var(--donut, 0) * 1%), #e8edf4 0);
  display: grid;
  place-items: center;
  position: relative;
  margin: 0 auto;
}

.donut-chart::before {
  content: "";
  width: 124px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(223, 229, 238, 0.9);
}

.donut-chart-center {
  position: absolute;
  display: grid;
  place-items: center;
  text-align: center;
  gap: 2px;
}

.donut-chart-center strong {
  font-size: 1.7rem;
  color: #172033;
}

.donut-chart-center span {
  font-size: 0.8rem;
  color: #667085;
}

.dashboard-legend {
  display: grid;
  gap: 10px;
}

.legend-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
}

.panel {
  overflow: clip;
}

.panel + .panel {
  margin-top: 16px;
}

.panel-header {
  min-height: 70px;
  padding: 16px 20px;
  background: #ffffff;
}

.panel-header > div {
  min-width: 0;
}

.panel-header h3 {
  color: #172033;
  font-size: 1.06rem;
  line-height: 1.4;
}

.panel-header h4 {
  font-size: 1rem;
}

.panel-header p {
  max-width: 1000px;
  margin-top: 4px;
  color: #6b7688;
  font-size: 0.87rem;
}

.panel-body {
  padding: 20px;
}

.metric-card {
  position: relative;
  min-height: 128px;
  grid-template-columns: minmax(0, 1fr) 46px;
  padding: 19px;
  overflow: hidden;
}

.metric-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: #4389e8;
}

.grid.four > .metric-card:nth-child(2)::before {
  background: #2d8d61;
}

.grid.four > .metric-card:nth-child(3)::before {
  background: #b77a18;
}

.grid.four > .metric-card:nth-child(4)::before {
  background: #a35d83;
}

.metric-label {
  color: #677286;
  font-size: 0.82rem;
}

.metric-value {
  margin-top: 6px;
  color: #111b2e;
  font-size: clamp(1.55rem, 2.4vw, 1.9rem);
  font-variant-numeric: tabular-nums;
}

.metric-note {
  color: #737f92;
}

.metric-icon {
  width: 46px;
  height: 46px;
  border-radius: 8px;
  background: #edf4ff;
  color: #1555ad;
}

.grid.four > .metric-card:nth-child(2) .metric-icon {
  background: #e9f6ef;
  color: #21704a;
}

.grid.four > .metric-card:nth-child(3) .metric-icon {
  background: #fff5df;
  color: #925c06;
}

.grid.four > .metric-card:nth-child(4) .metric-icon {
  background: #f7edf3;
  color: #8c486d;
}

.toolbar {
  gap: 12px;
}

.toolbar-group {
  gap: 8px;
}

.form-grid,
.form-grid.three {
  gap: 14px;
}

.form-field {
  gap: 7px;
  min-width: 0;
}

.form-field label {
  color: #536075;
  font-size: 0.84rem;
}

.input,
.select,
.textarea,
.readonly-field {
  min-height: 42px;
  padding: 8px 11px;
  border-color: #cbd5e1;
  border-radius: 7px;
  background: #ffffff;
}

.textarea {
  min-height: 96px;
}

.readonly-field {
  background: #f5f7fa;
}

.input:hover,
.select:hover,
.textarea:hover {
  border-color: #9dacbf;
}

.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--primary);
  box-shadow: var(--focus-ring);
}

.input:disabled,
.select:disabled,
.textarea:disabled {
  background: #eef2f6;
  color: #7b8797;
}

.checkbox-grid {
  gap: 9px;
}

.check-option {
  min-height: 42px;
  border-color: #d2dae5;
  border-radius: 7px;
  font-size: 0.9rem;
}

.check-option:hover {
  border-color: #9bb7dd;
  background: #f7faff;
}

.btn {
  min-height: 40px;
  padding: 8px 13px;
  border-color: #c9d3e0;
  border-radius: 7px;
  background: #ffffff;
  color: #243047;
  font-size: 0.9rem;
  box-shadow: 0 1px 2px rgba(25, 38, 60, 0.03);
}

.btn:hover {
  border-color: #7fa8dc;
  background: #f7faff;
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn.primary {
  border-color: #1769e0;
  background: #1769e0;
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(23, 105, 224, 0.2);
}

.btn.primary:hover {
  border-color: #1258bd;
  background: #125fc9;
}

.btn.success {
  border-color: #287a45;
  background: #287a45;
  box-shadow: 0 4px 10px rgba(40, 122, 69, 0.18);
}

.btn.success:hover {
  border-color: #21683a;
  background: #21683a;
}

.btn.danger {
  border-color: #c23b45;
  background: #c23b45;
  box-shadow: none;
}

.btn.danger:hover {
  border-color: #a92e38;
  background: #a92e38;
}

.btn.small {
  min-height: 34px;
  padding: 6px 10px;
  font-size: 0.84rem;
}

.btn.icon-only {
  width: 40px;
  min-width: 40px;
  padding: 0;
  font-size: 1.2rem;
}

.status {
  min-height: 25px;
  padding: 3px 9px;
  border-radius: 99px;
  font-size: 0.76rem;
  line-height: 1.35;
}

.tabs {
  gap: 7px;
  padding-bottom: 2px;
}

.tab {
  min-height: 39px;
  border-radius: 7px;
  background: #ffffff;
}

.tab:hover {
  border-color: #9fb9dc;
  color: #244c81;
}

.tab.active {
  border-color: #9fc2f3;
  background: #edf4ff;
  color: #124fa8;
  box-shadow: inset 0 -2px #1769e0;
}

.table-wrap {
  border-color: #d9e1ec;
  border-radius: 7px;
  box-shadow: none;
  scrollbar-color: #bac5d4 transparent;
  scrollbar-width: thin;
}

.table-wrap::-webkit-scrollbar {
  height: 9px;
  width: 9px;
}

.table-wrap::-webkit-scrollbar-track {
  background: #f2f5f8;
}

.table-wrap::-webkit-scrollbar-thumb {
  border: 2px solid #f2f5f8;
  border-radius: 8px;
  background: #b8c3d2;
}

th,
td {
  padding: 11px 13px;
  border-bottom-color: #e4e9f0;
}

th {
  background: #f5f7fa;
  color: #455268;
  font-size: 0.82rem;
}

tbody tr {
  transition: background-color var(--motion-fast) var(--ease);
}

tbody tr:hover {
  background: #f8faff;
}

tbody tr:nth-child(even) {
  background: #fbfcfe;
}

tbody tr:nth-child(even):hover {
  background: #f6f9fe;
}

.table-actions {
  gap: 7px;
}

.list {
  gap: 9px;
}

.list-item {
  min-height: 58px;
  padding: 12px 13px;
  border-color: #e0e6ef;
  border-radius: 7px;
  background: #f8fafc;
}

.list-item:hover {
  border-color: #c9d7e9;
  background: #f5f8fc;
}

.empty {
  min-height: 130px;
  display: grid;
  place-items: center;
  padding: 34px 18px;
  color: #7b8797;
}

.grade-filter-shell {
  gap: 14px;
  padding: 16px;
  border-color: #dce3ec;
  border-radius: 7px;
  background: #f7f9fc;
}

.grade-stat,
.pp5-term-section,
.attendance-makeup,
.attendance-daily-signature-block,
.timetable-row {
  border-radius: 7px;
}

.pp5-export-band {
  border-left: 4px solid #18806e;
  border-radius: 7px;
  background: #f7fbfa;
}

.pp5-term-section {
  background: #fbfcfe;
}

.calendar-grid {
  gap: 7px;
}

.calendar-cell {
  min-height: 112px;
  border-color: #dce3ec;
  border-radius: 7px;
}

.calendar-cell:hover {
  border-color: #a9bfdc;
  box-shadow: 0 5px 14px rgba(27, 43, 67, 0.07);
}

.calendar-cell.out {
  background: #eef2f6;
}

.calendar-event {
  border-left: 3px solid #4a88d8;
  border-radius: 5px;
  background: #edf4ff;
}

.att-status-buttons {
  gap: 7px;
}

.att-status-btn {
  min-height: 37px;
  border-radius: 7px;
}

.att-status-input:focus-visible + .att-status-btn {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.progress {
  height: 10px;
  background: #e3e9f1;
}

.progress span,
.bar-fill {
  background: #2c76d6;
}

.bar-track {
  background: #e5eaf1;
}

.modal-backdrop {
  z-index: 50;
  align-items: start;
  padding: clamp(16px, 4vh, 44px) 18px;
  background: rgba(16, 24, 39, 0.58);
  backdrop-filter: blur(3px);
}

.modal {
  max-height: calc(100dvh - clamp(32px, 8vh, 88px));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-color: #d8e0ea;
  border-radius: 8px;
  box-shadow: 0 24px 64px rgba(9, 18, 33, 0.24);
}

.modal > form {
  min-height: 0;
  display: flex;
  flex: 1;
  flex-direction: column;
}

.modal-header {
  min-height: 64px;
  padding: 13px 18px;
  background: #ffffff;
}

.modal-header h3 {
  font-size: 1.08rem;
}

.modal-header .btn.icon-only {
  border-color: transparent;
  background: #f2f5f8;
  font-size: 1.35rem;
}

.modal-body {
  min-height: 0;
  overflow-y: auto;
  padding: 20px;
  scrollbar-color: #bac5d4 transparent;
  scrollbar-width: thin;
}

.modal-footer {
  position: sticky;
  bottom: 0;
  padding: 13px 18px;
  background: #ffffff;
  box-shadow: 0 -8px 20px rgba(24, 34, 53, 0.04);
}

.toast {
  right: 20px;
  bottom: 20px;
  padding: 13px 15px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 7px;
  background: #172033;
  box-shadow: 0 14px 34px rgba(16, 24, 39, 0.24);
}

.login-page {
  align-items: center;
  padding: clamp(16px, 4vw, 42px);
  background: #eef3f8;
}

.login-panel {
  width: min(1000px, 100%);
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1fr);
  border-color: #d7dfe9;
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(28, 42, 65, 0.14);
}

.login-info {
  position: relative;
  padding: clamp(30px, 4vw, 52px);
  background: #172033;
}

.login-info::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 5px;
  background: #3b8eea;
}

.login-info h1 {
  max-width: 430px;
  font-size: clamp(1.55rem, 3vw, 2.05rem);
  line-height: 1.38;
}

.login-info p {
  color: #b8c5d8;
  line-height: 1.7;
}

.login-form {
  align-self: center;
  padding: clamp(28px, 4vw, 50px);
}

.login-form h2 {
  font-size: 1.45rem;
}

.login-storage-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.8rem;
}

.storage-status {
  flex: 0 0 auto;
}

.quick-logins {
  gap: 9px;
  margin-top: 18px;
}

.quick-login {
  min-height: 54px;
  border-color: #d9e1eb;
  border-radius: 7px;
  background: #f8fafc;
}

.quick-login:hover {
  border-color: #a9c1e1;
  background: #f3f7fc;
}

.drawer-scrim {
  display: none;
}

@media (max-width: 1240px) {
  .topbar {
    grid-template-columns: minmax(240px, 1fr) minmax(0, auto);
  }

  .top-actions {
    overflow-x: auto;
    padding: 3px 1px 5px;
    scrollbar-width: thin;
  }

  .user-pill > span:last-child {
    max-width: 120px;
  }
}

@media (max-width: 860px) {
  body.drawer-open {
    overflow: hidden;
  }

  .app-shell,
  .app-shell.is-sidebar-collapsed {
    grid-template-columns: minmax(0, 1fr);
  }

  .sidebar,
.app-shell.is-sidebar-collapsed .sidebar {
    z-index: 61;
    width: min(316px, calc(100vw - 48px));
    box-shadow: 18px 0 54px rgba(9, 18, 33, 0.28);
    height: 100dvh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .app-shell.is-sidebar-collapsed .nav-button {
    width: 100%;
    grid-template-columns: 28px minmax(0, 1fr) auto;
  }

  .app-shell.is-sidebar-collapsed .nav-label,
  .app-shell.is-sidebar-collapsed .nav-count {
    display: block;
  }

  .nav-label {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .drawer-scrim {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: block;
    width: 100%;
    height: 100%;
    padding: 0;
    border: 0;
    background: rgba(13, 22, 37, 0.46);
    cursor: default;
  }

  .topbar {
    min-height: 70px;
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    padding: 11px 14px 10px;
  }

  .topbar > .toolbar-group {
    width: 100%;
  }

  .page-title {
    max-width: calc(100vw - 82px);
  }

  .top-actions {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .top-actions::-webkit-scrollbar {
    display: none;
  }

  .top-actions > * {
    flex: 0 0 auto;
  }

  .top-actions .user-pill {
    order: -1;
  }

  .content {
    padding: 16px 14px 34px;
  }

  .panel-header {
    align-items: flex-start;
    padding: 15px 16px;
  }

  .panel-header > .btn,
  .panel-header > .status {
    flex: 0 0 auto;
  }

  .panel-body {
    padding: 16px;
  }

  .metric-card {
    min-height: 116px;
  }

  .toolbar {
    align-items: stretch;
  }

  .toolbar > .toolbar-group {
    max-width: 100%;
  }

  .timetable-row {
    grid-template-columns: 1fr;
  }

  .modal-backdrop {
    align-items: end;
    padding: 0;
  }

  .modal {
    width: 100%;
    max-height: 94dvh;
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
    border-radius: 8px 8px 0 0;
  }

  .modal-body {
    padding: 16px;
  }

  .calendar-grid {
    grid-template-columns: repeat(7, minmax(108px, 1fr));
    overflow-x: auto;
    padding-bottom: 8px;
    scroll-snap-type: x proximity;
  }

  .calendar-cell {
    min-height: 108px;
    scroll-snap-align: start;
  }

  .attendance-makeup {
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 14px;
  }

  .school-logo-editor {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .school-logo-controls {
    justify-content: center;
  }

  .school-logo-controls > div {
    flex-basis: 100%;
  }

  .topbar {
    position: sticky;
  }

  .page-title h2 {
    font-size: 1.04rem;
  }

  .page-title p {
    font-size: 0.75rem;
  }

  .top-actions .btn {
    min-height: 38px;
    font-size: 0.82rem;
  }

  .top-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
    overflow: visible;
  }

  .top-actions > .btn {
    width: 100%;
    white-space: normal;
  }

  .top-actions .user-pill {
    width: 100%;
    grid-column: 1 / -1;
  }

  .top-actions > .storage-status {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .top-actions .user-pill > span:last-child {
    max-width: none;
  }

  .user-pill {
    min-height: 38px;
  }

  .avatar {
    width: 28px;
    height: 28px;
  }

  .content {
    padding: 12px 10px 28px;
  }

  .grid {
    gap: 11px;
  }

  .grid.two,
  .grid.three,
  .grid.four {
    gap: 11px;
  }

  .panel + .panel {
    margin-top: 11px;
  }

  .panel-header {
    min-height: 62px;
    flex-wrap: wrap;
    gap: 10px;
    padding: 13px 14px;
  }

  .panel-header h3 {
    font-size: 1rem;
  }

  .panel-header p {
    font-size: 0.82rem;
  }

  .panel-header > .btn {
    width: 100%;
  }

  .panel-body {
    padding: 13px;
  }

  .metric-card {
    min-height: 104px;
    padding: 15px;
  }

  .metric-icon {
    width: 42px;
    height: 42px;
  }

  .metric-value {
    font-size: 1.55rem;
  }

  .toolbar,
  .toolbar-group {
    width: 100%;
  }

  .toolbar {
    flex-direction: column;
  }

  .toolbar-group {
    align-items: stretch;
  }

  .toolbar-group > .input,
  .toolbar-group > .select,
  .toolbar-group > .btn,
  .toolbar-group > label {
    flex: 1 1 100%;
    width: 100%;
  }

  .topbar > .toolbar-group {
    flex-direction: row;
    align-items: center;
  }

  .topbar > .toolbar-group > .btn.mobile-menu {
    width: 42px;
    min-width: 42px;
    flex: 0 0 42px;
  }

  .topbar > .toolbar-group > .page-title {
    width: auto;
    flex: 1 1 auto;
  }

  .search {
    width: 100%;
  }

  .checkbox-grid,
  .checkbox-grid.wide {
    grid-template-columns: 1fr;
  }

  .att-status-buttons {
    grid-template-columns: repeat(2, minmax(92px, 1fr));
  }

  .tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 7px;
    scrollbar-width: none;
  }

  .tabs::-webkit-scrollbar {
    display: none;
  }

  .tab {
    flex: 0 0 auto;
    min-height: 42px;
  }

  .responsive-table {
    min-width: 0;
  }

  .responsive-table thead {
    display: none;
  }

  .responsive-table,
  .responsive-table tbody,
  .responsive-table tr,
  .responsive-table td {
    display: block;
    width: 100%;
  }

  .responsive-table tbody {
    display: grid;
    gap: 10px;
    padding: 10px;
    background: #f3f6fa;
  }

  .responsive-table tr,
  .responsive-table tr:nth-child(even) {
    overflow: hidden;
    border: 1px solid #dce3ec;
    border-radius: 7px;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(27, 42, 66, 0.04);
  }

  .responsive-table tr:hover,
  .responsive-table tr:nth-child(even):hover {
    background: #ffffff;
  }

  .responsive-table td {
    min-height: 42px;
    display: grid;
    grid-template-columns: minmax(90px, 0.8fr) minmax(0, 1.2fr);
    gap: 12px;
    align-items: start;
    padding: 10px 12px;
    border-bottom: 1px solid #edf0f4;
    overflow-wrap: anywhere;
  }

  .responsive-table td::before {
    content: attr(data-label);
    color: #6a7588;
    font-size: 0.78rem;
    font-weight: 800;
  }

  .responsive-table td:last-child {
    border-bottom: 0;
  }

  .responsive-table .table-actions {
    justify-content: flex-start;
  }

  .responsive-table .table-actions .btn {
    flex: 1 1 auto;
  }

  .pp5-export-band,
  .pp5-copy,
  .pp5-actions,
  .pp5-term-heading,
  .section-heading {
    align-items: stretch;
  }

  .pp5-copy,
  .pp5-term-heading {
    flex-direction: column;
  }

  .pp5-actions {
    width: 100%;
  }

  .pp5-actions .select,
  .pp5-actions .btn {
    width: 100%;
  }

  .attendance-daily-signatures {
    gap: 10px;
  }

  .attendance-overview-wrap {
    max-height: 62dvh;
    overflow: auto !important; 
    -webkit-overflow-scrolling: touch;
  }

  .toast {
    right: 10px;
    bottom: 10px;
    max-width: calc(100vw - 20px);
  }

  .login-page {
    align-items: start;
    padding: 0;
    background: #ffffff;
  }

  .login-panel {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .login-info {
    padding: 26px 20px 30px;
  }

  .login-info .brand-mark {
    width: 42px;
    height: 42px;
  }

  .login-info h1 {
    margin-bottom: 8px;
    font-size: 1.42rem;
  }

  .login-info p {
    margin-bottom: 0;
    font-size: 0.86rem;
  }

  .login-stats {
    display: none;
  }

  .login-form {
    width: 100%;
    padding: 25px 20px 32px;
  }

  .login-storage-note {
    align-items: flex-start;
    flex-direction: column;
  }

  .quick-logins {
    grid-template-columns: 1fr;
  }

  .modal-footer {
    padding: 11px 13px max(11px, env(safe-area-inset-bottom));
  }

  .modal-footer .btn {
    flex: 1 1 0;
  }
}

@media (hover: none) and (pointer: coarse) {
  .btn,
  .input,
  .select,
  .check-option,
  .nav-button {
    min-height: 44px;
  }

  .btn.small {
    min-height: 40px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .content > * {
    animation-duration: 300ms;
  }

  .drawer-scrim {
    animation: fadeEnter 180ms ease both;
  }

  .drawer-open .sidebar {
    transition-duration: 240ms;
    transition-timing-function: var(--ease);
  }
}

@media print {
  body,
  .main,
  .content {
    background: #ffffff !important;
  }

  .drawer-scrim {
    display: none !important;
  }

  .panel,
  .card,
  .table-wrap {
    border-color: #b8b8b8;
    box-shadow: none !important;
  }
}
/* ==============================================================
   🚀 MODERN UI UPGRADE PACK (เพิ่มความลื่นไหลและมิติให้ระบบ)
   ============================================================== */

:root {
  /* ปรับจังหวะแอนิเมชันให้มีความสมูทและเด้งแบบธรรมชาติ (Spring Easing) */
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-smooth: cubic-bezier(0.25, 1, 0.5, 1);
  
  /* ปรับเงาให้ดูฟุ้งและนุ่มนวลขึ้นเหมือน Apple/Modern UI */
  --shadow-sm: 0 4px 6px -1px rgba(18, 28, 46, 0.05), 0 2px 4px -1px rgba(18, 28, 46, 0.03);
  --shadow-md: 0 10px 15px -3px rgba(18, 28, 46, 0.08), 0 4px 6px -2px rgba(18, 28, 46, 0.04);
  --shadow-hover: 0 20px 25px -5px rgba(18, 28, 46, 0.1), 0 10px 10px -5px rgba(18, 28, 46, 0.04);
}

/* 1. ปุ่มต่างๆ (Buttons) - ให้มีฟีลลิ่งตอนกดแบบสัมผัสจริง (Tactile) */
.btn {
  transition: all 0.25s var(--ease-smooth) !important;
  box-shadow: var(--shadow-sm);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  filter: brightness(1.05); /* สว่างขึ้นนิดนึงตอนชี้ */
}

.btn:active {
  transform: translateY(1px) scale(0.96) !important; /* ยุบตัวลงตอนกด */
  box-shadow: none !important;
}

/* 2. การ์ดและพาเนล (Cards & Panels) - ให้ลอยขึ้นเมื่อเอาเมาส์ชี้ */
.panel, .card, .metric-card, .login-panel {
  border: 1px solid rgba(223, 229, 238, 0.6);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s var(--ease-smooth);
}

.metric-card:hover, .list-item:hover, .quick-login:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #c9d7e9;
  z-index: 2; /* ให้อยู่เหนืออันอื่นตอนชี้ */
}

/* 3. แถบเมนูด้านบน (Topbar) - ทำเอฟเฟกต์กระจกฝ้า (Glassmorphism) */
.topbar {
  background: rgba(255, 255, 255, 0.85) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px); /* สำหรับ Safari/iOS */
  border-bottom: 1px solid rgba(228, 233, 241, 0.8);
  box-shadow: 0 4px 20px -10px rgba(0,0,0,0.05);
}

/* 4. ช่องกรอกข้อมูล (Inputs) - เพิ่มแสงเรืองรองตอนคลิกพิมพ์ */
.input, .select, .textarea {
  transition: all 0.25s var(--ease-smooth);
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.02);
}

.input:focus, .select:focus, .textarea:focus {
  transform: translateY(-1px);
  box-shadow: 0 0 0 4px rgba(23, 105, 224, 0.15), inset 0 1px 2px rgba(0,0,0,0.01);
}

/* 5. Sidebar (เมนูด้านซ้าย) - ปรับการเลื่อนให้สมูทขึ้น */
.nav-button {
  transition: all 0.3s var(--ease-smooth) !important;
}

.nav-button:hover {
  transform: translateX(4px); /* เลื่อนไปทางขวานิดนึงตอนชี้ */
}

.nav-button.active {
  transform: translateX(4px);
}

/* 6. แอนิเมชันเปิดหน้าใหม่ (Page Load) - ให้ดูนุ่มนวลและมีมิติขึ้น */
@keyframes viewEnter {
  from {
    opacity: 0;
    transform: translateY(15px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.content > *, .panel, .card, .metric-card {
  animation: viewEnter 0.5s var(--ease-smooth) both;
}

/* ทำให้แอนิเมชันแต่ละกล่องค่อยๆ โผล่มาไม่พร้อมกัน (Staggered effect) */
.grid > *:nth-child(1) { animation-delay: 0.05s; }
.grid > *:nth-child(2) { animation-delay: 0.1s; }
.grid > *:nth-child(3) { animation-delay: 0.15s; }
.grid > *:nth-child(4) { animation-delay: 0.2s; }
/* ==============================================================
   ✨ UI UPGRADE PHASE 2 (หน้า Login, แจ้งเตือน และ แถบเมนู)
   ============================================================== */

/* --- 1. หน้า Login สไตล์ Glassmorphism --- */
.login-page {
  /* ถ้ามีรูปโรงเรียน สามารถเอาไปใส่ในโฟลเดอร์ assets แล้วเปลี่ยนลิงก์ด้านล่างได้ครับ */
  background: radial-gradient(circle at top left, #1f6feb 0%, transparent 40%),
              radial-gradient(circle at bottom right, #0f766e 0%, transparent 40%),
              var(--bg);
}

.login-panel {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 25px 50px -12px rgba(18, 28, 46, 0.15);
}

.login-info {
  background: linear-gradient(135deg, #101827 0%, #1c2941 100%);
  position: relative;
  overflow: hidden;
}

/* เพิ่มแสงตกกระทบในส่วนสีดำของ Login */
.login-info::before {
  content: "";
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 60%);
  transform: rotate(30deg);
  pointer-events: none;
}

/* --- 2. ตัวแจ้งเตือน (Toast Notification) --- */
.toast {
  background: rgba(23, 32, 51, 0.95);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px; /* โค้งมนขึ้น */
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  padding: 14px 22px;
  transform-origin: bottom center;
}

@keyframes toastEnter {
  0% { opacity: 0; transform: translateY(20px) scale(0.9); }
  60% { transform: translateY(-3px) scale(1.02); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* --- 3. แถบเมนูด้านซ้าย (Sidebar Active Glow) --- */
.nav-button.active {
  background: linear-gradient(90deg, #1f6feb 0%, #174ea6 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(31, 111, 235, 0.3); /* แสงเรืองรอง */
  border: none;
  font-weight: 700;
}

.nav-button.active .nav-icon {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
}

/* --- 4. ปรับตารางให้ดูสะอาดตาขึ้น (Clean Tables) --- */
.table-wrap {
  border: none;
  box-shadow: inset 0 0 0 1px var(--line), 0 2px 6px rgba(0,0,0,0.02);
  border-radius: 10px;
  overflow: hidden;
}

th {
  background: #f8fafc;
  color: #475569;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--line);
}
/* ==============================================================
   ✨ UI UPGRADE PHASE 3 (Smooth Sidebar & Layout Animations)
   ============================================================== */

@media (prefers-reduced-motion: no-preference) {
  /* 1. ปรับจังหวะยืด-หดของเลย์เอาต์หลัก (Desktop) ให้ช้าลงและมีระยะหน่วง */
  .app-shell {
    transition: grid-template-columns 0.5s var(--ease-smooth) !important;
  }
  
  /* 2. ปรับการสไลด์เปิด-ปิดเมนูด้านซ้าย (Mobile & Desktop) ให้ไหลลื่น ไม่กระชาก */
  .sidebar {
    transition: transform 0.5s var(--ease-smooth), width 0.5s var(--ease-smooth), box-shadow 0.5s ease !important;
  }
  
  /* 3. ปรับให้แอนิเมชันฉากหลังสีดำ (ตอนเปิดเมนูบนมือถือ) เฟดเข้า-ออกแบบเนียนๆ */
  .drawer-scrim {
    transition: opacity 0.4s ease !important;
  }

  /* 4. เพิ่มลูกเล่นให้ปุ่มแฮมเบอร์เกอร์ (ปุ่ม 3 ขีด) ยุบตัวเวลาโดนกด */
  .btn.mobile-menu {
    transition: transform 1.0s var(--ease-spring), border-color 0.3s ease !important;
  }
  .btn.mobile-menu:active {
    transform: scale(0.85) !important;
  }
  
  /* 5. ทำให้ความกว้างของปุ่มเมนูค่อยๆ ขยับตามขนาดแถบด้านซ้าย */
  .nav-button {
    transition: all 1.0s var(--ease-smooth) !important;
  }
}
/* ==============================================================
   ✨ UI UPGRADE FINAL (Perfect Centering & Smooth Morphing)
   ============================================================== */

@media (prefers-reduced-motion: no-preference) {
  /* 1. ตั้งเวลาการยืด-หดให้สมูท และล็อก Sidebar ไม่ให้ตกบรรทัด */
  .app-shell { 
    transition: grid-template-columns 0.6s cubic-bezier(0.25, 1, 0.5, 1) !important; 
  }
  .sidebar {
    overflow-x: hidden !important;
    white-space: nowrap !important;
    transition: width 0.6s cubic-bezier(0.25, 1, 0.5, 1), transform 0.6s cubic-bezier(0.25, 1, 0.5, 1) !important;
  }

  /* 2. โซนโลโก้และชื่อโรงเรียน (กลับมาซ้อนกันบน-ล่างแบบเดิม) */
  .brand {
    display: flex !important;
    flex-direction: column !important; 
    align-items: flex-start !important; /* บังคับชิดซ้ายเสมอ ป้องกันการ Snap กระตุก */
    padding: 22px 18px 18px !important;
    min-height: 124px !important;
    transition: all 0.6s cubic-bezier(0.25, 1, 0.5, 1) !important;
    overflow: hidden !important;
  }
  .app-shell.is-sidebar-collapsed .brand {
    min-height: 76px !important;
    padding-top: 15px !important;
    padding-bottom: 15px !important;
    /* ใช้สูตรคณิตศาสตร์ดันโลโก้กว้าง 46px ไปไว้กึ่งกลางเป๊ะๆ อย่างนุ่มนวล */
    padding-left: calc(50% - 23px) !important; 
    padding-right: calc(50% - 23px) !important;
  }

  .brand-mark {
    flex: 0 0 46px !important; /* ล็อกขนาดโลโก้ */
    margin-bottom: 13px !important;
    transition: margin 0.6s cubic-bezier(0.25, 1, 0.5, 1) !important;
  }
  .app-shell.is-sidebar-collapsed .brand-mark {
    margin-bottom: 0 !important;
  }

  /* 3. ปุ่มเมนูและไอคอน */
  .nav-button {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-start !important; /* บังคับชิดซ้ายเสมอ */
    width: 100% !important;
    padding-left: 10px !important; 
    padding-right: 10px !important;
    gap: 12px !important;
    overflow: hidden !important;
    transition: all 0.6s cubic-bezier(0.25, 1, 0.5, 1) !important;
  }
  .app-shell.is-sidebar-collapsed .nav-button {
    gap: 0 !important;
    /* ใช้สูตรคณิตศาสตร์ดันไอคอนกว้าง 27px ไปไว้กึ่งกลางเป๊ะๆ */
    padding-left: calc(50% - 13.5px) !important;
    padding-right: calc(50% - 13.5px) !important;
  }

  .nav-icon {
    flex: 0 0 27px !important; /* ล็อกขนาดไอคอน */
    margin: 0 !important;
  }

  /* 4. แอนิเมชันบีบซ่อนตัวหนังสือแบบลื่นไหล (Morphing) */
  .brand-text, .nav-label, .nav-count, .sidebar-title {
    opacity: 1 !important;
    max-width: 300px !important; 
    max-height: 100px !important;
    transform: scale(1) translateX(0) !important;
    transform-origin: left center;
    transition: max-width 0.5s cubic-bezier(0.25, 1, 0.5, 1),
                max-height 0.5s cubic-bezier(0.25, 1, 0.5, 1),
                opacity 0.4s ease, 
                transform 0.5s cubic-bezier(0.25, 1, 0.5, 1),
                margin 0.5s cubic-bezier(0.25, 1, 0.5, 1) !important;
  }

  .app-shell.is-sidebar-collapsed .brand-text,
  .app-shell.is-sidebar-collapsed .nav-label,
  .app-shell.is-sidebar-collapsed .nav-count,
  .app-shell.is-sidebar-collapsed .sidebar-title {
    opacity: 0 !important;
    max-width: 0 !important;
    max-height: 0 !important;
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    transform: scale(0.9) translateX(-10px) !important;
    pointer-events: none !important;
  }

  /* บังคับยกเลิก display:none ของโค้ดเก่า เพื่อเปิดทางให้ระบบ Morphing ทำงาน */
  .app-shell.is-sidebar-collapsed .brand-text,
  .app-shell.is-sidebar-collapsed .sidebar-title,
  .app-shell.is-sidebar-collapsed .nav-label,
  .app-shell.is-sidebar-collapsed .nav-count {
    display: block !important;
  }
}
/* ==============================================================
   📱 MOBILE FIX (แก้บัคเมนูไม่แสดงข้อความบนมือถือ)
   ============================================================== */

@media (max-width: 860px) {
  /* บังคับให้โลโก้และชื่อโรงเรียนกลับมาจัดชิดซ้ายและแสดงผลเต็ม */
  .app-shell.is-sidebar-collapsed .brand {
    padding: 22px 18px 18px !important;
    align-items: flex-start !important;
  }
  .app-shell.is-sidebar-collapsed .brand-mark {
    margin-bottom: 13px !important;
  }
  
  /* บังคับให้ไอคอนเมนูมีระยะห่าง และจัดชิดซ้าย */
  .app-shell.is-sidebar-collapsed .nav-button {
    padding-left: 10px !important;
    padding-right: 10px !important;
    gap: 12px !important;
  }
  
  /* บังคับให้ตัวหนังสือ (ชื่อโรงเรียน, ชื่อเมนู) โชว์ขึ้นมาเสมอ 100% */
  .app-shell.is-sidebar-collapsed .brand-text,
  .app-shell.is-sidebar-collapsed .nav-label,
  .app-shell.is-sidebar-collapsed .nav-count,
  .app-shell.is-sidebar-collapsed .sidebar-title {
    opacity: 1 !important;
    max-width: 300px !important;
    max-height: 100px !important;
    transform: scale(1) translateX(0) !important;
    pointer-events: auto !important;
  }
}
/* บังคับเปิดระบบเลื่อนตารางเช็กชื่อบนมือถือ */
@media (max-width: 860px) {
  .attendance-overview-wrap {
    overflow: auto !important;
    -webkit-overflow-scrolling: touch !important;
  }
}
/* ==============================================================
   📱 MOBILE FIX 2 (ปลดล็อกการตรึงคอลัมน์บนมือถือ)
   ============================================================== */

@media (max-width: 860px) {
  /* ยกเลิกการตรึงชื่อและรหัสนักเรียน เพื่อให้ตารางสถิติเลื่อนซ้ายขวาได้ */
  .attendance-overview-table .student-index-col,
  .attendance-overview-table .student-code-col,
  .attendance-overview-table .student-name-col {
    position: static !important;
  }
  
  /* เปิดระบบปัดเลื่อนให้สมูทบนมือถือ */
  .attendance-overview-wrap {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
  }
}
/* ==============================================================
   🛠️ BUG FIX: ให้ตารางกางเต็มความสูงนักเรียนทุกคน เลื่อนแค่ซ้าย-ขวา
   ============================================================== */

/* ปลดล็อกความสูงให้ตารางกางยาวลงมาจนสุดรายชื่อนักเรียน */
.attendance-overview-wrap {
  max-height: none !important; 
  height: auto !important;
  overflow-y: visible !important; /* ปิดการเลื่อนแนวตั้งในกล่อง (ให้ไปเลื่อนที่หน้าจอหลักแทน) */
  overflow-x: auto !important;    /* เปิดให้ปัดเลื่อนซ้าย-ขวาได้อย่างเดียว */
  -webkit-overflow-scrolling: touch !important;
}

/* บังคับใช้กฎเดียวกันบนหน้าจอมือถือ */
@media (max-width: 860px) {
  .attendance-overview-wrap {
    max-height: none !important;
    height: auto !important;
    overflow-y: visible !important;
    overflow-x: auto !important;
  }
}
/* ==============================================================
   🚨 EARLY WARNING SYSTEM (ระบบแจ้งเตือนความเสี่ยง มส.)
   ============================================================== */
.panel.alert-danger {
  border-color: #fca5a5;
  background: linear-gradient(to right, #fef2f2, #fff);
  box-shadow: 0 4px 15px -3px rgba(239, 68, 68, 0.15);
}
.panel.alert-danger .panel-header h3 {
  color: #b91c1c;
}
.risk-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.risk-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 15px;
  align-items: center;
  padding: 12px 16px;
  background: #fff;
  border-left: 4px solid #ef4444;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.risk-item.warning { border-left-color: #f59e0b; }
.risk-item.critical { border-left-color: #ef4444; background: #fff5f5; }

/* Home visit module */
.home-visit-panel .panel-header { align-items: flex-start; }
.home-visit-metrics { margin: 18px 0; }
.home-visit-table th, .home-visit-table td { vertical-align: middle; }
.home-visit-table .table-actions { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; }
.home-visit-modal { width: min(1180px, calc(100vw - 32px)); max-height: min(92vh, 980px); }
.home-visit-modal .modal-body { max-height: calc(92vh - 142px); overflow: auto; }
.home-visit-form { background: #f8fafc; }
.home-visit-section { background: #fff; border-radius: 10px; padding: 18px; margin-bottom: 16px; box-shadow: 0 1px 3px rgba(15, 23, 42, .08); }
.home-visit-section h4 { margin: 0 0 15px; color: #0f3e74; font-size: 1.06rem; }
.home-visit-section h5 { margin: 0 0 8px; font-size: .98rem; color: #334155; }
.home-visit-section .form-field.full { grid-column: 1 / -1; }
.home-visit-options { display: flex; flex-wrap: wrap; gap: 8px 13px; }
.home-visit-check, .inline-check { display: inline-flex; align-items: center; gap: 6px; color: #334155; font-size: .92rem; line-height: 1.35; cursor: pointer; }
.home-visit-check input, .inline-check input { accent-color: #2563eb; }
.home-visit-risk-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.home-visit-risk-grid > div { border: 1px solid #e2e8f0; background: #f8fafc; border-radius: 8px; padding: 12px; }
.home-visit-risk-grid .home-visit-check { display: flex; margin: 5px 0; }
.home-visit-relation-grid { margin-top: 14px; }
@media (max-width: 700px) {
  .home-visit-modal { width: 100vw; max-height: 100dvh; border-radius: 0; }
  .home-visit-modal .modal-body { max-height: calc(100dvh - 132px); padding: 12px; }
  .home-visit-section { padding: 14px; }
  .home-visit-risk-grid { grid-template-columns: 1fr; }
  .home-visit-table-wrap { margin: 0; overflow: visible; border: 0; background: transparent; box-shadow: none; }
  .home-visit-table,
  .home-visit-table tbody { display: block; min-width: 0; width: 100%; }
  .home-visit-table thead { display: none; }
  .home-visit-table tbody { display: grid; gap: 10px; }
  .home-visit-table tbody tr:not(:has(.empty)) {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    overflow: hidden;
    border: 1px solid #dbe4ef;
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(22, 32, 51, 0.05);
  }
  .home-visit-table tbody tr:not(:has(.empty)) td {
    display: block;
    min-width: 0;
    padding: 9px 12px;
    border-bottom: 1px solid #edf1f6;
    text-align: left;
  }
  .home-visit-table tbody tr:not(:has(.empty)) td:first-child {
    grid-row: 1 / span 5;
    grid-column: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 15px 5px;
    border-right: 1px solid #edf1f6;
    border-bottom: 0;
    color: #2563eb;
    font-size: 1rem;
    font-weight: 800;
  }
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(2) { grid-column: 2; padding-top: 13px; padding-bottom: 6px; }
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(3),
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(4),
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(5),
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(6) {
    grid-column: 2;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(3)::before { content: "ผู้ปกครอง"; }
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(4)::before { content: "ครั้งล่าสุด"; }
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(5)::before { content: "ความเสี่ยง"; }
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(6)::before { content: "สถานะ"; }
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(3)::before,
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(4)::before,
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(5)::before,
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(6)::before {
    flex: 0 0 76px;
    color: #64748b;
    font-size: 0.78rem;
    font-weight: 700;
  }
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(3) > *,
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(4) > *,
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(5) > *,
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(6) > * { min-width: 0; }
  .home-visit-table tbody tr:not(:has(.empty)) td:last-child {
    grid-column: 1 / -1;
    padding: 10px;
    border-bottom: 0;
    background: #f8fafc;
  }
  .home-visit-table .table-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }
  .home-visit-table .table-actions .btn { width: 100%; min-height: 44px; padding-inline: 8px; }
  .home-visit-table .empty { display: block; padding: 20px; border-radius: 10px; background: #ffffff; text-align: center; }
}

/* Compact mobile shell and touch-first home visit controls. */
@media (max-width: 700px) {
  body { overflow-x: hidden; }
  .topbar { min-height: 0; gap: 8px; padding: 10px 12px; }
  .page-title { max-width: calc(100vw - 72px); }
  .page-title h2 { font-size: 1.1rem; }
  .page-title p { font-size: 0.74rem; }
  .top-actions {
    display: flex;
    width: 100%;
    align-items: center;
    gap: 8px;
    overflow: hidden;
  }
  .top-actions .storage-status { display: none; }
  .top-actions .topbar-user {
    order: 0;
    flex: 1 1 auto;
    width: auto;
    min-width: 0;
    grid-column: auto;
  }
  .top-actions .topbar-user > span:last-child { min-width: 0; max-width: none; }
  .top-actions .topbar-user > span:last-child br { display: none; }
  .top-actions .topbar-user .small { display: none; }
  .top-actions > .btn.icon-only { flex: 0 0 42px; width: 42px; min-height: 42px; }
  .top-actions .topbar-logout {
    flex: 0 0 50px;
    width: 50px;
    min-height: 42px;
    padding: 0;
    font-size: 0;
  }
  .top-actions .topbar-logout::after { content: "ออก"; font-size: 0.82rem; }
  .home-visit-panel .panel-header > div:first-child { width: 100%; }
  .home-visit-panel .panel-header > .toolbar-group {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }
  .home-visit-panel .panel-header > .toolbar-group .btn { width: 100%; min-height: 44px; padding-inline: 8px; }
  .home-visit-panel .toolbar { gap: 10px; }
  .home-visit-panel .toolbar .select { min-height: 44px; }
  .home-visit-metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .home-visit-metrics .metric-card { min-height: 92px; padding: 11px; }
  .home-visit-metrics .metric-label { font-size: 0.7rem; line-height: 1.25; }
  .home-visit-metrics .metric-value { font-size: 1.35rem; }
  .home-visit-metrics .metric-icon { display: none; }
}
.substitution-group {
  margin-top: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.substitution-group > summary {
  cursor: pointer;
  list-style: none;
}

.substitution-group > summary::-webkit-details-marker {
  display: none;
}

.substitution-slot {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.substitution-slot-header,
.substitution-slot-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.substitution-slot-actions {
  margin-top: 12px;
  margin-bottom: 0;
  justify-content: flex-start;
}
.btn.ghost.danger {
  color: var(--red);
  background: transparent;
}

/* Dashboard B prototype: friendly teacher mobile-first system. */
:root {
  --dash-bg: var(--bg);
  --dash-surface: var(--surface);
  --dash-surface-soft: var(--surface-soft);
  --dash-ink: var(--text);
  --dash-muted: var(--muted);
  --dash-line: var(--line);
  --dash-line-strong: var(--line-strong);
  --dash-teal: var(--teal);
  --dash-teal-dark: var(--primary-dark);
  --dash-green: var(--green);
  --dash-blue: var(--primary);
  --dash-amber: var(--amber);
  --dash-red: var(--red);
  --dash-purple: var(--purple);
  --dash-radius: var(--radius-lg);
  --dash-shadow: var(--shadow-sm);
}

body,
button,
input,
select,
textarea {
  font-family: var(--font-primary);
}

.dashboard-content {
  background:
    linear-gradient(180deg, rgba(232, 247, 240, 0.82) 0, rgba(246, 251, 248, 0.88) 240px, var(--dash-bg) 100%);
  padding: 12px 10px 28px;
}

.dashboard-prototype,
.dashboard-prototype * {
  overflow-wrap: break-word;
  word-break: normal;
  hyphens: none;
}

.dashboard-prototype {
  width: min(100%, 1240px);
  min-width: 0;
  margin: 0 auto;
  display: grid;
  gap: 12px;
  color: var(--dash-ink);
}

.dashboard-prototype > *,
.dashboard-main-grid,
.dashboard-main-grid > *,
.dashboard-student-stack,
.dashboard-student-stack > *,
.dashboard-panel,
.dashboard-panel-body,
.dashboard-schedule-desktop,
.dashboard-table-scroll,
.dashboard-grade-table-wrap {
  min-width: 0;
  max-width: 100%;
}

.dashboard-hero {
  display: grid;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--dash-line);
  border-radius: var(--dash-radius);
  background:
    linear-gradient(135deg, rgba(225, 246, 236, 0.94), rgba(235, 244, 255, 0.86)),
    var(--dash-surface);
  box-shadow: var(--dash-shadow);
}

.dashboard-hero-copy {
  min-width: 0;
}

.dashboard-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid #a9d8cb;
  border-radius: 999px;
  background: #ffffff;
  color: var(--dash-teal-dark);
  font-size: 0.82rem;
  font-weight: 700;
}

.dashboard-hero h2 {
  margin: 10px 0 0;
  color: var(--dash-ink);
  font-size: 1.42rem;
  line-height: 1.32;
  letter-spacing: 0;
}

.dashboard-hero p {
  max-width: 720px;
  margin: 8px 0 0;
  color: #475569;
  font-size: 0.94rem;
  line-height: 1.65;
}

.dashboard-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.dashboard-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 5px 10px;
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: #33515a;
  font-size: 0.82rem;
  font-weight: 600;
}

.dashboard-hero-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.dashboard-action {
  min-height: 48px;
  width: 100%;
  flex-direction: column;
  align-items: flex-start;
  padding: 11px 13px;
  border-color: #b9d4ca;
  border-radius: var(--dash-radius);
  white-space: normal;
  text-align: left;
  line-height: 1.35;
}

.dashboard-action.secondary {
  background: #ffffff;
  color: var(--dash-teal-dark);
}

.dashboard-action small {
  color: inherit;
  font-size: 0.76rem;
  font-weight: 500;
  opacity: 0.78;
}

.dashboard-metric-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.dashboard-metric {
  min-height: 104px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--dash-line);
  border-left: 4px solid var(--tone, var(--dash-teal));
  border-radius: var(--dash-radius);
  background: var(--dash-surface);
  box-shadow: 0 8px 18px rgba(18, 57, 47, 0.05);
}

.dashboard-metric-text {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.dashboard-metric-text span,
.dashboard-metric-text small {
  color: var(--dash-muted);
}

.dashboard-metric-text span {
  font-size: 0.82rem;
  font-weight: 600;
}

.dashboard-metric-text strong {
  color: var(--dash-ink);
  font-size: 1.58rem;
  line-height: 1.12;
  font-variant-numeric: tabular-nums;
}

.dashboard-metric-text small {
  font-size: 0.78rem;
  line-height: 1.4;
}

.dashboard-metric-icon {
  width: 46px;
  min-height: 42px;
  display: inline-grid;
  place-items: center;
  padding: 6px;
  border-radius: var(--dash-radius);
  background: color-mix(in srgb, var(--tone, var(--dash-teal)) 10%, white);
  color: var(--tone, var(--dash-teal));
  font-size: 0.84rem;
  font-weight: 800;
  text-align: center;
}

.dashboard-tone-teal { --tone: var(--dash-teal); }
.dashboard-tone-green { --tone: var(--dash-green); }
.dashboard-tone-blue { --tone: var(--dash-blue); }
.dashboard-tone-amber { --tone: var(--dash-amber); }
.dashboard-tone-red { --tone: var(--dash-red); }
.dashboard-tone-purple { --tone: var(--dash-purple); }

.dashboard-main-grid,
.dashboard-student-stack {
  display: grid;
  gap: 12px;
}

.dashboard-panel {
  overflow: clip;
  border: 1px solid var(--dash-line);
  border-radius: var(--dash-radius);
  background: var(--dash-surface);
  box-shadow: var(--dash-shadow);
}

.dashboard-panel-header {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  gap: 10px;
  padding: 14px;
  border-bottom: 1px solid #e6efec;
  background: #ffffff;
}

.dashboard-panel-header > div {
  min-width: 0;
}

.dashboard-panel-header h3 {
  margin: 0;
  color: var(--dash-ink);
  font-size: 1.02rem;
  line-height: 1.45;
  letter-spacing: 0;
}

.dashboard-panel-header p {
  margin: 4px 0 0;
  color: var(--dash-muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.dashboard-panel-header > .btn,
.dashboard-panel-header > .status {
  justify-self: stretch;
}

.dashboard-panel-body {
  padding: 14px;
}

.dashboard-touch,
.dashboard-large-action,
.dashboard-export-action,
.dashboard-quick-form .select {
  min-height: 44px;
}

.dashboard-attendance-layout {
  display: grid;
  gap: 14px;
  align-items: center;
}

.dashboard-donut {
  width: min(230px, 76vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  justify-self: center;
  border-radius: 50%;
  background: var(--dashboard-donut-bg, conic-gradient(var(--tone, var(--dash-teal)) calc(var(--donut, 0) * 1%), #e8f0ed 0));
  box-shadow: inset 0 0 0 1px rgba(17, 24, 39, 0.05), 0 12px 22px rgba(15, 118, 110, 0.12);
}

.dashboard-donut-center {
  width: 68%;
  height: 68%;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 2px;
  border-radius: 50%;
  background: #ffffff;
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(220, 233, 228, 0.9);
}

.dashboard-donut-center strong {
  color: var(--dash-ink);
  font-size: 1.74rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.dashboard-donut-center span {
  color: var(--dash-muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.dashboard-legend {
  display: grid;
  gap: 8px;
}

.dashboard-legend-row {
  min-height: 44px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border: 1px solid #e2ece8;
  border-radius: var(--dash-radius);
  background: #fbfefd;
}

.dashboard-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--tone, var(--dash-teal));
}

.dashboard-legend-row span:not(.dashboard-dot) {
  color: #334155;
  font-weight: 600;
  line-height: 1.35;
}

.dashboard-legend-row strong {
  color: var(--dash-ink);
  font-variant-numeric: tabular-nums;
}

.dashboard-legend-row small {
  color: var(--dash-muted);
  font-weight: 700;
}

.dashboard-section-label {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 10px;
  margin: 16px 0 10px;
  padding-top: 14px;
  border-top: 1px dashed #c6dbd4;
}

.dashboard-section-label strong {
  color: var(--dash-ink);
  font-size: 0.96rem;
}

.dashboard-section-label span {
  color: var(--dash-muted);
  font-size: 0.78rem;
}

.dashboard-bars {
  display: grid;
  gap: 10px;
}

.dashboard-bar-row {
  display: grid;
  grid-template-columns: minmax(82px, 0.75fr) minmax(0, 1.4fr) auto;
  align-items: center;
  gap: 9px;
}

.dashboard-bar-row strong {
  min-width: 0;
  color: #334155;
  font-size: 0.84rem;
  line-height: 1.35;
}

.dashboard-bar-row em {
  color: var(--dash-muted);
  font-style: normal;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.dashboard-bar-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #e7f0ed;
}

.dashboard-bar-track span {
  display: block;
  width: var(--value, 0%);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--dash-teal), #58b58a);
}

.dashboard-list {
  display: grid;
  gap: 8px;
}

.dashboard-list-item {
  min-height: 58px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 11px;
  border: 1px solid #e2ece8;
  border-radius: var(--dash-radius);
  background: #fbfefd;
}

.dashboard-list-item > div {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.dashboard-list-item strong {
  color: var(--dash-ink);
  line-height: 1.42;
}

.dashboard-list-item span {
  color: var(--dash-muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.dashboard-list-item .status {
  justify-self: start;
}

.dashboard-empty {
  padding: 18px 14px;
  border: 1px dashed #c9dad5;
  border-radius: var(--dash-radius);
  background: #fbfefd;
  color: var(--dash-muted);
  text-align: center;
}

.dashboard-quick-export {
  border-color: #a9d8cb;
  background: linear-gradient(180deg, #ffffff, #f7fcfa);
}

.dashboard-quick-export .dashboard-panel-header {
  background: linear-gradient(135deg, #edfbf6, #ffffff);
}

.dashboard-quick-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 12px;
  border: 1px solid #d7ebe4;
  border-radius: var(--dash-radius);
  background: #ffffff;
}

.dashboard-quick-form .form-field {
  margin: 0;
}

.dashboard-quick-form label {
  color: #26394b;
  font-weight: 700;
  line-height: 1.45;
}

.dashboard-quick-form label span {
  color: var(--dash-muted);
  font-weight: 500;
}

.dashboard-quick-form .select {
  width: 100%;
  margin-top: 6px;
  border-color: #c9dad5;
}

.dashboard-export-grid,
.dashboard-action-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 12px;
}

.dashboard-export-action {
  width: 100%;
  min-height: 90px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  justify-content: stretch;
  gap: 3px 10px;
  padding: 13px;
  border-radius: var(--dash-radius);
  white-space: normal;
  text-align: left;
}

.dashboard-export-action strong,
.dashboard-export-action small {
  min-width: 0;
}

.dashboard-export-action small {
  font-weight: 500;
  opacity: 0.9;
}

.dashboard-export-badge {
  grid-row: span 2;
  min-width: 48px;
  min-height: 40px;
  display: inline-grid;
  place-items: center;
  padding: 6px;
  border-radius: var(--dash-radius);
  background: rgba(255, 255, 255, 0.22);
  color: inherit;
  font-weight: 800;
}

.dashboard-export-p03 {
  border-color: #18864b;
  background: #18864b;
}

.dashboard-export-pp5 {
  border-color: #2563b8;
  background: #2563b8;
}

.dashboard-export-pp6 {
  border-color: #7a4ba3;
  background: #7a4ba3;
}

.dashboard-export-action.is-locked {
  border: 1px dashed #cbd5e1;
  background: #f6f8fb;
  color: #768294;
}

.dashboard-export-action.is-locked .dashboard-export-badge {
  background: #e7edf5;
}

.dashboard-large-action {
  min-height: 52px;
  width: 100%;
  white-space: normal;
}

.dashboard-schedule-mobile {
  display: block;
}

.dashboard-schedule-desktop {
  display: none;
}

.dashboard-schedule-cards {
  display: grid;
  gap: 12px;
}

.dashboard-day-card {
  overflow: hidden;
  border: 1px solid #dce9e4;
  border-radius: var(--dash-radius);
  background: #ffffff;
}

.dashboard-day-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 11px 12px;
  background: #ecf8f3;
  color: #124a42;
}

.dashboard-day-header strong {
  font-size: 1rem;
}

.dashboard-day-header span {
  color: #4b626c;
  font-size: 0.78rem;
  font-weight: 600;
}

.dashboard-day-slots {
  display: grid;
  gap: 8px;
  padding: 10px;
}

.dashboard-lesson {
  display: grid;
  gap: 3px;
  padding: 10px;
  border: 1px solid #e3ece9;
  border-radius: var(--dash-radius);
  background: #fbfefd;
}

.dashboard-lesson-time {
  color: var(--dash-teal-dark);
  font-size: 0.76rem;
  font-weight: 700;
}

.dashboard-lesson strong {
  color: var(--dash-ink);
  line-height: 1.45;
}

.dashboard-lesson span,
.dashboard-lesson small {
  color: var(--dash-muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.dashboard-lesson-home {
  border-color: #f1d58c;
  background: #fff8e8;
}

.dashboard-lesson-lunch {
  border-color: #f0c3c3;
  background: #fff1f1;
}

.dashboard-lesson.is-empty {
  background: #f8fafc;
  color: #8a96a6;
}

.dashboard-table-scroll {
  overflow-x: auto;
  border: 1px solid #dce9e4;
  border-radius: var(--dash-radius);
  background: #ffffff;
  scrollbar-width: thin;
}

.dashboard-schedule-table,
.dashboard-grade-table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
  color: var(--dash-ink);
}

.dashboard-schedule-table {
  min-width: 880px;
  text-align: center;
}

.dashboard-schedule-table th,
.dashboard-schedule-table td,
.dashboard-grade-table th,
.dashboard-grade-table td {
  border-bottom: 1px solid #e6efec;
  padding: 11px 10px;
  vertical-align: top;
  line-height: 1.45;
}

.dashboard-schedule-table th {
  background: #f2faf7;
  color: #24453f;
  font-size: 0.84rem;
}

.dashboard-schedule-table th span {
  color: var(--dash-muted);
  font-size: 0.74rem;
  font-weight: 500;
}

.dashboard-schedule-table td {
  min-width: 104px;
  font-size: 0.84rem;
}

.dashboard-schedule-table td strong,
.dashboard-grade-table td strong {
  display: block;
  line-height: 1.45;
}

.dashboard-schedule-table td span,
.dashboard-schedule-table td small,
.dashboard-grade-table td span {
  display: block;
  color: var(--dash-muted);
  font-size: 0.76rem;
  line-height: 1.45;
}

.dashboard-table-break {
  background: #fff8e8;
  color: #8a5a0a;
  font-weight: 700;
}

.dashboard-scroll-hint {
  display: block;
  margin: 8px 0 0;
  color: var(--dash-muted);
  font-size: 0.78rem;
}

.dashboard-gpa {
  min-width: 130px;
  display: grid;
  gap: 2px;
  justify-items: start;
  padding: 9px 11px;
  border: 1px solid #bfdad2;
  border-radius: var(--dash-radius);
  background: #f1fbf7;
}

.dashboard-gpa span {
  color: var(--dash-muted);
  font-size: 0.76rem;
  font-weight: 600;
}

.dashboard-gpa strong {
  color: var(--dash-teal-dark);
  font-size: 1.3rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.dashboard-grade-cards {
  display: grid;
  gap: 10px;
}

.dashboard-grade-card {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid #e2ece8;
  border-radius: var(--dash-radius);
  background: #fbfefd;
}

.dashboard-grade-card > div,
.dashboard-grade-card dl,
.dashboard-grade-card dl > div {
  min-width: 0;
}

.dashboard-grade-card > div strong {
  display: block;
  color: var(--dash-ink);
  line-height: 1.45;
}

.dashboard-grade-card > div span {
  display: block;
  margin-top: 2px;
  color: var(--dash-muted);
  font-size: 0.8rem;
}

.dashboard-grade-card dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
}

.dashboard-grade-card dl > div {
  display: grid;
  gap: 4px;
  padding: 8px;
  border-radius: var(--dash-radius);
  background: #ffffff;
}

.dashboard-grade-card dt {
  color: var(--dash-muted);
  font-size: 0.72rem;
  font-weight: 600;
}

.dashboard-grade-card dd {
  margin: 0;
  color: var(--dash-ink);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.dashboard-grade-table-wrap {
  display: none;
}

.dashboard-grade-table th {
  background: #f2faf7;
  color: #24453f;
  font-size: 0.84rem;
  text-align: center;
}

.dashboard-grade-table th:first-child,
.dashboard-grade-table td:first-child {
  text-align: left;
}

.app-shell.is-dashboard-view .topbar {
  background: rgba(246, 251, 248, 0.96);
}

.app-shell.is-dashboard-view .top-actions {
  min-width: 0;
}

.app-shell.is-dashboard-view .top-actions .btn {
  min-height: 44px;
  white-space: normal;
  line-height: 1.25;
}

.app-shell.is-dashboard-view .top-actions .btn.icon-only {
  width: 44px;
  min-width: 44px;
}

.dashboard-touch.btn.small {
  min-height: 44px;
  padding: 8px 12px;
}

@media (max-width: 1180px) {
  .app-shell.is-dashboard-view .topbar {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }

  .app-shell.is-dashboard-view .top-actions {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    overflow: visible;
  }

  .app-shell.is-dashboard-view .top-actions .topbar-user {
    flex: 1 1 180px;
    max-width: 260px;
  }

  .app-shell.is-dashboard-view .top-actions .topbar-user > span:last-child {
    min-width: 0;
    max-width: 180px;
  }
}

@media (max-width: 700px) {
  .app-shell.is-dashboard-view .topbar {
    padding: 9px 10px;
  }

  .app-shell.is-dashboard-view .top-actions {
    flex-wrap: nowrap;
    align-items: center;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .app-shell.is-dashboard-view .top-actions::-webkit-scrollbar {
    display: none;
  }

  .app-shell.is-dashboard-view .top-actions > * {
    flex: 0 0 auto;
  }

  .app-shell.is-dashboard-view .top-actions > .btn.small:not(.topbar-logout) {
    flex: 0 0 auto;
    padding-inline: 8px;
  }

  .app-shell.is-dashboard-view .top-actions > .btn.icon-only {
    flex: 0 0 44px;
    width: 44px;
    min-height: 44px;
  }

  .app-shell.is-dashboard-view .top-actions .topbar-user {
    flex: 0 0 168px;
    max-width: 168px;
    min-height: 44px;
  }

  .app-shell.is-dashboard-view .top-actions .topbar-logout {
    flex-basis: 58px;
    min-height: 44px;
  }
}

@media (min-width: 375px) {
  .dashboard-content {
    padding-inline: 12px;
  }
}

@media (min-width: 560px) {
  .dashboard-metric-grid,
  .dashboard-export-grid,
  .dashboard-action-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-hero-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .dashboard-content {
    padding: 18px 18px 36px;
  }

  .dashboard-prototype {
    gap: 14px;
  }

  .dashboard-hero {
    grid-template-columns: minmax(0, 1fr) minmax(230px, 0.34fr);
    align-items: end;
    padding: 20px;
  }

  .dashboard-hero h2 {
    font-size: 1.72rem;
  }

  .dashboard-hero-actions {
    justify-self: end;
  }

  .dashboard-metric-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .dashboard-main-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  }

  .dashboard-panel-full {
    grid-column: 1 / -1;
  }

  .dashboard-panel-header {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 16px;
  }

  .dashboard-panel-header > .btn,
  .dashboard-panel-header > .status {
    justify-self: end;
  }

  .dashboard-panel-body {
    padding: 16px;
  }

  .dashboard-attendance-layout {
    grid-template-columns: minmax(170px, 230px) minmax(0, 1fr);
  }

  .dashboard-attendance-layout-stacked {
    grid-template-columns: minmax(170px, 210px) minmax(0, 1fr);
  }

  .dashboard-list-item {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .dashboard-list-item .status {
    justify-self: end;
  }

  .dashboard-quick-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-export-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .dashboard-schedule-mobile {
    display: none;
  }

  .dashboard-schedule-desktop {
    display: block;
  }

  .dashboard-grade-cards {
    display: none;
  }

  .dashboard-grade-table-wrap {
    display: block;
    overflow-x: auto;
    border: 1px solid #dce9e4;
    border-radius: var(--dash-radius);
  }
}

@media (min-width: 1024px) {
  .dashboard-content {
    padding: 22px 24px 42px;
  }

  .dashboard-prototype {
    gap: 16px;
  }

  .dashboard-hero {
    padding: 24px;
  }

  .dashboard-panel-body {
    padding: 18px;
  }

  .dashboard-quick-form {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1440px) {
  .dashboard-content {
    padding-top: 26px;
  }

  .dashboard-hero h2 {
    font-size: 1.92rem;
  }
}

/* Phase 1 Design System: extracted from the approved glass dashboard direction. */
html,
body {
  width: 100%;
  overflow-x: hidden;
}

body {
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--teal) 18%, transparent), transparent 34rem),
    radial-gradient(circle at top right, color-mix(in srgb, var(--primary) 14%, transparent), transparent 32rem),
    var(--bg);
  color: var(--text);
  transition: background-color var(--motion-med) var(--ease), color var(--motion-med) var(--ease);
}

.ui-icon,
.lucide {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  stroke-width: 2;
}

.app-shell {
  grid-template-columns: 288px minmax(0, 1fr);
  background: transparent;
}

.app-shell.is-sidebar-collapsed {
  grid-template-columns: 84px minmax(0, 1fr);
}

.sidebar {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--sidebar-soft) 70%, transparent), transparent 18rem),
    var(--sidebar);
  color: var(--surface);
  border-right: 1px solid var(--sidebar-line);
  box-shadow: var(--shadow-sm);
}

.brand {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-4);
}

.brand-mark {
  width: 48px;
  height: 48px;
  margin: 0;
  border-radius: var(--radius-lg);
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 12px 26px color-mix(in srgb, var(--primary) 28%, transparent);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.brand h1,
.brand p,
.nav-label strong,
.nav-label small {
  display: block;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand h1 {
  font-size: 1rem;
  font-weight: 800;
}

.brand p {
  color: color-mix(in srgb, var(--surface) 64%, transparent);
  font-size: .84rem;
}

.sidebar-section {
  padding: var(--space-3) var(--space-3) var(--space-1);
}

.sidebar-title {
  margin: 0 var(--space-2) var(--space-2);
  color: color-mix(in srgb, var(--surface) 58%, transparent);
  font-size: .76rem;
  letter-spacing: .01em;
}

.nav-list {
  gap: var(--space-2);
}

.nav-button {
  min-height: 48px;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: color-mix(in srgb, var(--surface) 82%, transparent);
}

.nav-button:hover,
.nav-button.active {
  background: color-mix(in srgb, var(--primary) 18%, transparent);
  border-color: color-mix(in srgb, var(--primary) 35%, var(--sidebar-line));
  color: var(--on-sidebar);
}

.nav-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface) 10%, transparent);
  color: currentColor;
}

.nav-icon svg ~ .nav-icon-fallback {
  display: none;
}

.nav-label {
  min-width: 0;
  line-height: 1.22;
}

.nav-label strong {
  font-size: .92rem;
  font-weight: 700;
}

.nav-label small {
  margin-top: 2px;
  color: color-mix(in srgb, currentColor 66%, transparent);
  font-size: .72rem;
  font-weight: 500;
}

.nav-count,
.notification-count {
  min-width: 22px;
  min-height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--red);
  color: var(--on-danger);
  font-size: .72rem;
  font-weight: 800;
}

.app-shell.is-sidebar-collapsed .brand {
  grid-template-columns: 1fr;
  padding: var(--space-4) var(--space-2);
}

.app-shell.is-sidebar-collapsed .brand-mark {
  margin: 0 auto;
}

.app-shell.is-sidebar-collapsed .nav-button {
  width: 48px;
  min-height: 48px;
  grid-template-columns: 1fr;
  padding: var(--space-2);
  justify-items: center;
}

.app-shell.is-sidebar-collapsed .nav-icon {
  width: 32px;
  height: 32px;
}

.main {
  min-width: 0;
}

.topbar {
  min-height: 76px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--surface-glass);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(18px);
}

.toolbar-group,
.top-actions {
  min-width: 0;
}

.toolbar-group {
  flex-wrap: nowrap;
}

.btn.mobile-menu .menu-lines {
  display: none;
}

.page-title {
  min-width: 0;
}

.page-title h2 {
  color: var(--text);
  font-size: 1.28rem;
  font-weight: 800;
  line-height: 1.25;
}

.page-title p {
  color: var(--muted);
  font-size: .86rem;
}

.page-title p span {
  color: var(--primary-dark);
  font-weight: 700;
}

.top-actions {
  gap: var(--space-2);
}

.theme-switch {
  min-height: 52px;
  min-width: 178px;
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-soft);
  isolation: isolate;
}

.theme-switch.is-compact {
  min-width: 134px;
}

.theme-switch::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: var(--space-1);
  width: calc((100% - (var(--space-1) * 2) - var(--space-1)) / 2);
  border-radius: 999px;
  background: var(--primary);
  box-shadow: 0 8px 20px color-mix(in srgb, var(--primary) 28%, transparent);
  transform: translateX(calc(var(--theme-index) * (100% + var(--space-1))));
  transition: transform 260ms var(--ease);
}

.theme-switch button {
  min-height: 44px;
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0 var(--space-2);
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-weight: 800;
}

:root[data-theme="light"]:not([data-theme-target]) .theme-switch button[data-theme-choice="light"],
:root[data-theme="dark"]:not([data-theme-target]) .theme-switch button[data-theme-choice="dark"],
:root[data-theme-target="light"] .theme-switch button[data-theme-choice="light"],
:root[data-theme-target="dark"] .theme-switch button[data-theme-choice="dark"] {
  color: var(--on-primary);
}

.notification-button {
  position: relative;
  border-color: var(--line);
  background: var(--surface);
  color: var(--text);
}

.notification-count {
  position: absolute;
  top: -6px;
  right: -6px;
  border: 2px solid var(--surface);
}

.user-menu {
  position: relative;
}

.user-menu summary {
  list-style: none;
  cursor: pointer;
}

.user-menu summary::-webkit-details-marker {
  display: none;
}

.user-pill {
  min-height: 44px;
  border-radius: 999px;
  background: var(--surface);
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.avatar {
  width: 32px;
  height: 32px;
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.user-menu-panel {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  z-index: 14;
  width: min(300px, calc(100vw - 24px));
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}

.user-menu:not([open]) .user-menu-panel {
  display: none;
}

.user-menu-head {
  padding: var(--space-2) var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--line);
}

.user-menu-head strong,
.user-menu-head span {
  display: block;
}

.user-menu-head span,
.user-menu-action small {
  color: var(--muted);
}

.user-menu-action {
  width: 100%;
  min-height: 48px;
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  grid-template-areas:
    "icon label"
    "icon hint";
  justify-items: start;
  align-items: center;
  text-align: left;
  white-space: normal;
}

.user-menu-action .ui-icon,
.user-menu-action .lucide {
  grid-area: icon;
}

.user-menu-action span {
  grid-area: label;
  font-weight: 800;
}

.user-menu-action small {
  grid-area: hint;
  font-size: .76rem;
}

.content {
  min-width: 0;
  padding: var(--space-6);
}

.panel,
.card,
.metric-card {
  border-color: var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-glass);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(14px);
}

.panel-header {
  gap: var(--space-3);
  padding: var(--space-4);
}

.panel-body {
  padding: var(--space-4);
}

.input,
.select,
.textarea,
.readonly-field {
  min-height: 44px;
  border-color: var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
}

.input:focus,
.select:focus,
.textarea:focus,
.btn:focus-visible,
.nav-button:focus-visible,
.user-pill:focus-visible,
.theme-switch button:focus-visible,
.dashboard-action:focus-visible,
.dashboard-export-action:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--primary) 34%, transparent);
  outline-offset: 2px;
  border-color: var(--primary);
  box-shadow: none;
}

.btn {
  min-height: 44px;
  padding: 9px var(--space-3);
  border-color: var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
  font-weight: 800;
}

.btn.primary {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--on-primary);
}

.btn.success {
  border-color: var(--success);
  background: var(--success);
  color: var(--on-success);
}

.btn.danger {
  border-color: var(--danger);
  background: var(--danger);
  color: var(--on-danger);
}

.btn.ghost {
  background: transparent;
}

.btn.small {
  min-height: 40px;
  padding: 7px 11px;
}

.btn.icon-only {
  width: 44px;
  min-width: 44px;
  padding: 0;
}

.status {
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--text);
  font-weight: 800;
}

.status.green {
  border-color: color-mix(in srgb, var(--success) 34%, var(--line));
  background: color-mix(in srgb, var(--success) 14%, var(--surface));
  color: color-mix(in srgb, var(--success) 72%, var(--text));
}

.status.amber {
  border-color: color-mix(in srgb, var(--warning) 34%, var(--line));
  background: color-mix(in srgb, var(--warning) 18%, var(--surface));
  color: color-mix(in srgb, var(--warning) 70%, var(--text));
}

.status.red {
  border-color: color-mix(in srgb, var(--danger) 34%, var(--line));
  background: color-mix(in srgb, var(--danger) 13%, var(--surface));
  color: color-mix(in srgb, var(--danger) 72%, var(--text));
}

.status.blue {
  border-color: color-mix(in srgb, var(--info) 34%, var(--line));
  background: color-mix(in srgb, var(--info) 13%, var(--surface));
  color: color-mix(in srgb, var(--info) 72%, var(--text));
}

.field-validation {
  margin: 6px 0 0;
  color: var(--danger);
  font-size: .82rem;
  font-weight: 700;
}

.table-wrap {
  border-color: var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

th {
  background: var(--surface-soft);
  color: var(--text);
}

td {
  color: var(--text);
}

.empty,
.dashboard-empty {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
  color: var(--muted);
}

.state-card,
.loading-state,
.empty-state,
.error-state,
.success-state {
  min-height: 112px;
  display: grid;
  align-content: center;
  gap: var(--space-2);
  padding: var(--space-5);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--text);
  text-align: center;
}

.empty-state {
  border-style: dashed;
  color: var(--muted);
}

.error-state {
  border-color: color-mix(in srgb, var(--danger) 34%, var(--line));
  background: color-mix(in srgb, var(--danger) 9%, var(--surface));
}

.success-state {
  border-color: color-mix(in srgb, var(--success) 34%, var(--line));
  background: color-mix(in srgb, var(--success) 10%, var(--surface));
}

.loading-skeleton {
  min-height: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--surface-soft), color-mix(in srgb, var(--primary) 12%, var(--surface-soft)), var(--surface-soft));
  background-size: 220% 100%;
}

@media (prefers-reduced-motion: no-preference) {
  .loading-skeleton {
    animation: skeletonPulse 1.2s var(--ease) infinite;
  }
}

@keyframes skeletonPulse {
  from {
    background-position: 100% 50%;
  }
  to {
    background-position: 0 50%;
  }
}

.modal {
  border-color: var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}

.modal-backdrop {
  background: color-mix(in srgb, var(--sidebar) 62%, transparent);
  backdrop-filter: blur(8px);
}

.toast {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--sidebar);
  color: var(--on-sidebar);
  box-shadow: var(--shadow-lg);
}

.dashboard-content {
  background:
    radial-gradient(circle at 8% 8%, color-mix(in srgb, var(--teal) 16%, transparent), transparent 26rem),
    radial-gradient(circle at 92% 0%, color-mix(in srgb, var(--primary) 14%, transparent), transparent 28rem),
    var(--bg);
}

.dashboard-prototype {
  max-width: 1440px;
  margin: 0 auto;
}

.dashboard-hero,
.dashboard-panel,
.dashboard-metric,
.dashboard-grade-card {
  border-radius: var(--radius-lg);
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.dashboard-hero {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--surface) 96%, var(--primary) 4%), var(--surface-glass));
}

.dashboard-kicker,
.dashboard-metric-en,
.dashboard-panel-header p,
.dashboard-list-item span,
.dashboard-legend-row small,
.dashboard-export-action small {
  color: var(--muted);
}

.dashboard-hero h2,
.dashboard-panel-header h3,
.dashboard-metric-text strong,
.dashboard-list-item strong,
.dashboard-section-label strong {
  color: var(--text);
}

.dashboard-metric {
  min-height: 132px;
  grid-template-columns: minmax(0, 1fr) 48px;
  padding: var(--space-4);
  background: linear-gradient(135deg, color-mix(in srgb, var(--tone, var(--primary)) 94%, var(--surface) 6%), var(--tone, var(--primary)));
  color: var(--on-sidebar);
  overflow: hidden;
}

.dashboard-metric-text span,
.dashboard-metric-text small,
.dashboard-metric-text strong {
  color: inherit;
}

.dashboard-metric-en {
  display: block;
  margin-top: 2px;
  opacity: .76;
}

.dashboard-metric-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--on-sidebar) 22%, transparent);
  color: currentColor;
}

.dashboard-metric-icon .lucide,
.dashboard-metric-icon .ui-icon {
  width: 22px;
  height: 22px;
}

.dashboard-main-grid {
  gap: var(--space-4);
}

.dashboard-action {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  grid-template-areas:
    "icon label"
    "icon hint";
  align-items: center;
  gap: 2px 8px;
  text-align: left;
}

.dashboard-action .ui-icon,
.dashboard-action .lucide {
  grid-area: icon;
}

.dashboard-action span {
  grid-area: label;
}

.dashboard-action small {
  grid-area: hint;
}

.dashboard-action.secondary {
  background: var(--surface);
  color: var(--primary-dark);
}

.dashboard-panel {
  background: var(--surface-glass);
  backdrop-filter: blur(14px);
}

.app-shell.is-dashboard-view .topbar {
  background: var(--surface-glass);
}

:root[data-theme="dark"] .topbar,
:root[data-theme="dark"] .app-shell.is-dashboard-view .topbar {
  background: var(--surface-glass) !important;
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.dashboard-panel-header,
.dashboard-quick-export .dashboard-panel-header {
  border-bottom-color: var(--line);
  background: var(--surface);
}

.dashboard-quick-form {
  border-color: var(--line);
  background: var(--surface);
}

.dashboard-quick-export {
  border-color: color-mix(in srgb, var(--primary) 22%, var(--line));
}

.dashboard-quick-export .dashboard-panel-header {
  padding-block: var(--space-3);
}

.dashboard-quick-export .dashboard-panel-body {
  padding-top: var(--space-3);
}

.dashboard-export-grid {
  gap: var(--space-3);
}

.dashboard-export-action {
  min-height: 92px;
  border-radius: var(--radius-lg);
  white-space: normal;
}

.dashboard-export-action:disabled {
  border-color: var(--line);
  background: var(--surface-soft);
  color: var(--muted);
  opacity: 1;
}

.dashboard-export-action:disabled .dashboard-export-badge {
  background: var(--line);
  color: var(--muted);
}

.dashboard-donut {
  box-shadow: inset 0 0 0 1px var(--line);
}

.dashboard-donut::after {
  background: var(--surface);
}

.dashboard-bar-track {
  background: var(--surface-soft);
}

.dashboard-bar-track span {
  background: linear-gradient(90deg, var(--primary), var(--teal));
}

.dashboard-list-item,
.dashboard-legend-row,
.dashboard-task,
.dashboard-grade-card {
  border-color: var(--line);
  background: var(--surface);
}

.dashboard-table-scroll,
.dashboard-grade-table-wrap {
  border-color: var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.dashboard-schedule-table th,
.dashboard-grade-table th {
  background: var(--surface-soft);
  color: var(--text);
}

@media (max-width: 1536px) {
  .dashboard-prototype {
    max-width: 1320px;
  }
}

@media (max-width: 1280px) {
  .topbar {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }

  .top-actions {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 1024px) {
  .app-shell,
  .app-shell.is-sidebar-collapsed {
    grid-template-columns: 1fr;
  }

  .sidebar,
  .app-shell.is-sidebar-collapsed .sidebar {
    position: fixed;
    z-index: 62;
    width: min(320px, 88vw);
    transform: translateX(-105%);
  }

  .drawer-open .sidebar {
    transform: translateX(0);
  }

  .drawer-scrim {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    background: color-mix(in srgb, var(--sidebar) 58%, transparent);
    backdrop-filter: blur(4px);
  }

  .app-shell.is-sidebar-collapsed .brand-text,
  .app-shell.is-sidebar-collapsed .sidebar-title,
  .app-shell.is-sidebar-collapsed .nav-label,
  .app-shell.is-sidebar-collapsed .nav-count {
    display: block;
  }

  .app-shell.is-sidebar-collapsed .brand {
    grid-template-columns: 48px minmax(0, 1fr);
    padding: var(--space-5) var(--space-4);
  }

  .app-shell.is-sidebar-collapsed .nav-button {
    width: 100%;
    grid-template-columns: 34px minmax(0, 1fr) auto;
    justify-items: stretch;
    padding: var(--space-2) var(--space-3);
  }

  .topbar {
    position: sticky;
    top: 0;
  }
}

@media (max-width: 768px) {
  .topbar {
    padding: var(--space-3);
  }

  .top-actions {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
  }

  .storage-status {
    display: none;
  }

  .theme-switch.is-compact {
    min-width: 140px;
  }

  .user-menu {
    justify-self: end;
  }

  .user-pill .small,
  .user-pill > span:nth-child(2) {
    display: none;
  }

  .content,
  .dashboard-content {
    padding: var(--space-4) var(--space-3) var(--space-6);
  }

  .dashboard-hero,
  .dashboard-panel-header {
    grid-template-columns: 1fr;
  }

  .dashboard-metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-main-grid,
  .dashboard-attendance-layout,
  .dashboard-attendance-layout-stacked {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 14px;
  }

  .topbar {
    gap: var(--space-3);
  }

  .toolbar-group {
    width: 100%;
  }

  .page-title h2 {
    font-size: 1.08rem;
  }

  .page-title p {
    font-size: .78rem;
  }

  .top-actions {
    grid-template-columns: minmax(0, 1fr) 44px 44px;
  }

  .theme-switch.is-compact {
    min-width: 0;
    width: 100%;
  }

  .theme-switch button {
    padding-inline: 6px;
  }

  .theme-switch button span {
    font-size: .82rem;
  }

  .dashboard-metric-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-quick-form,
  .dashboard-export-grid {
    grid-template-columns: 1fr;
  }

  .user-menu-panel {
    right: -4px;
  }
}

/* Phase 2: Login and shared form surfaces. */
.modern-login-page {
  --login-accent: var(--primary);
  --login-accent-strong: var(--primary-dark);
  position: relative;
  min-height: 100svh;
  align-items: center;
  justify-items: center;
  padding: clamp(var(--space-4), 4vw, var(--space-8));
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary) 10%, transparent), transparent 34%),
    linear-gradient(315deg, color-mix(in srgb, var(--teal) 10%, transparent), transparent 38%),
    var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

.modern-login-page.is-student-portal {
  --login-accent: var(--success);
  --login-accent-strong: var(--teal);
}

.login-theme-control {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: 5;
}

.modern-login-container {
  width: min(1120px, 100%);
  min-height: min(680px, calc(100svh - 96px));
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--line) 76%, transparent);
  border-radius: var(--radius-xl);
  background: var(--surface-glass);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(18px);
}

.modern-login-left,
.modern-login-right {
  min-width: 0;
}

.modern-login-left {
  position: relative;
  display: grid;
  align-content: center;
  justify-items: start;
  gap: var(--space-5);
  padding: clamp(var(--space-6), 5vw, 56px);
  color: var(--on-sidebar);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--sidebar) 86%, var(--login-accent) 14%), color-mix(in srgb, var(--login-accent) 74%, var(--sidebar) 26%));
  overflow: hidden;
}

.modern-login-left::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(135deg, color-mix(in srgb, var(--on-sidebar) 16%, transparent) 1px, transparent 1px),
    linear-gradient(45deg, color-mix(in srgb, var(--on-sidebar) 10%, transparent) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: .28;
  pointer-events: none;
}

.login-portal-badge,
.school-logo-large,
.modern-title,
.modern-subtitle,
.login-stat-grid {
  position: relative;
  z-index: 1;
}

.login-portal-badge {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid color-mix(in srgb, var(--on-sidebar) 28%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--on-sidebar) 12%, transparent);
  color: var(--on-sidebar);
  font-size: .82rem;
  font-weight: 800;
}

.school-logo-large {
  width: clamp(76px, 12vw, 118px);
  height: clamp(76px, 12vw, 118px);
  object-fit: contain;
  padding: var(--space-3);
  border: 1px solid color-mix(in srgb, var(--on-sidebar) 38%, transparent);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: var(--shadow-sm);
}

.modern-title {
  max-width: 620px;
  margin: 0;
  color: var(--on-sidebar);
  font-size: clamp(1.78rem, 4.6vw, 3rem);
  font-weight: 900;
  line-height: 1.18;
}

.modern-subtitle {
  max-width: 520px;
  margin: 0;
  color: color-mix(in srgb, var(--on-sidebar) 82%, transparent);
  font-size: clamp(.98rem, 1.4vw, 1.12rem);
  line-height: 1.75;
}

.login-stat-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.login-stat-card {
  min-height: 92px;
  display: grid;
  align-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid color-mix(in srgb, var(--on-sidebar) 20%, transparent);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--on-sidebar) 12%, transparent);
}

.login-stat-card .ui-icon {
  color: color-mix(in srgb, var(--on-sidebar) 82%, transparent);
}

.login-stat-card span,
.login-stat-card small {
  display: block;
}

.login-stat-card span {
  color: color-mix(in srgb, var(--on-sidebar) 82%, transparent);
  font-size: .8rem;
  line-height: 1.4;
}

.login-stat-card small {
  color: color-mix(in srgb, var(--on-sidebar) 62%, transparent);
}

.login-stat-card strong {
  color: var(--on-sidebar);
  font-size: 1.7rem;
  font-weight: 900;
}

.modern-login-right {
  display: grid;
  align-content: center;
  gap: var(--space-6);
  padding: clamp(var(--space-6), 5vw, 56px);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 96%, transparent), var(--surface));
}

.login-form-head {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  align-items: center;
  gap: var(--space-4);
}

.login-form-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--login-accent) 14%, var(--surface));
  color: var(--login-accent-strong);
}

.login-form-icon .ui-icon {
  width: 25px;
  height: 25px;
}

.login-form-head h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.35rem, 2.6vw, 1.78rem);
  font-weight: 900;
  line-height: 1.25;
}

.login-form-head p {
  margin: var(--space-1) 0 0;
  color: var(--muted);
  font-weight: 700;
}

.modern-login-form {
  display: grid;
  gap: var(--space-4);
}

.modern-input-group {
  position: relative;
  display: grid;
  gap: var(--space-2);
  margin: 0;
}

.modern-input-group label {
  display: grid;
  gap: 2px;
  margin: 0;
  color: var(--text);
  font-weight: 800;
  line-height: 1.35;
}

.modern-input-group label small {
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
}

.modern-field-icon {
  position: absolute;
  left: var(--space-4);
  bottom: 14px;
  color: var(--muted);
  pointer-events: none;
}

.modern-field-icon .ui-icon {
  width: 20px;
  height: 20px;
}

.modern-input {
  width: 100%;
  min-height: 52px;
  padding: 12px var(--space-4) 12px 46px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  transition: border-color var(--motion-med) var(--ease), background var(--motion-med) var(--ease), box-shadow var(--motion-med) var(--ease);
}

.modern-input.is-code-input {
  text-align: center;
  letter-spacing: .08em;
  font-weight: 900;
}

.modern-input::placeholder {
  color: color-mix(in srgb, var(--muted) 68%, transparent);
}

.modern-input:focus {
  border-color: var(--login-accent);
  background: var(--surface);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--login-accent) 18%, transparent);
  outline: none;
}

.modern-btn {
  width: 100%;
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  padding: 13px var(--space-5);
  border: 0;
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, var(--login-accent), var(--login-accent-strong));
  color: var(--on-primary);
  box-shadow: 0 16px 30px color-mix(in srgb, var(--login-accent) 28%, transparent);
  cursor: pointer;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 900;
  transition: transform var(--motion-fast) var(--ease), box-shadow var(--motion-med) var(--ease);
}

.modern-btn.green {
  color: var(--on-success);
}

.modern-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 38px color-mix(in srgb, var(--login-accent) 34%, transparent);
}

.modern-btn:focus-visible,
.switch-portal a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--login-accent) 42%, transparent);
  outline-offset: 3px;
}

.switch-portal {
  margin: 0;
}

.switch-portal a {
  min-height: 52px;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  color: var(--text);
  text-decoration: none;
  font-weight: 900;
  transition: border-color var(--motion-med) var(--ease), background var(--motion-med) var(--ease), transform var(--motion-fast) var(--ease);
}

.switch-portal a small {
  grid-column: 2;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
}

.switch-portal a:hover {
  border-color: color-mix(in srgb, var(--login-accent) 45%, var(--line));
  background: color-mix(in srgb, var(--login-accent) 9%, var(--surface));
  transform: translateY(-1px);
}

.panel-header {
  gap: var(--space-4);
}

.form-grid {
  gap: var(--space-4);
}

.form-field {
  gap: var(--space-2);
}

.form-field label {
  color: var(--text);
  font-size: .9rem;
  line-height: 1.45;
}

.input,
.select,
.textarea,
.readonly-field {
  min-height: 44px;
  border-color: var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
}

.input,
.select,
.textarea {
  padding: 10px var(--space-3);
  font: inherit;
  transition: border-color var(--motion-med) var(--ease), background var(--motion-med) var(--ease), box-shadow var(--motion-med) var(--ease);
}

.textarea {
  min-height: 112px;
  line-height: 1.6;
}

.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: 0 0 0 4px var(--primary-soft);
  outline: none;
}

.input[type="file"] {
  padding-block: 9px;
}

.table-wrap {
  max-width: 100%;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.table-wrap table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

th,
td {
  padding: 12px var(--space-4);
  border-bottom-color: var(--line);
  vertical-align: middle;
}

th {
  background: var(--surface-soft);
  color: var(--text);
  font-size: .8rem;
  letter-spacing: 0;
  text-transform: none;
}

tbody tr:hover {
  background: color-mix(in srgb, var(--primary) 5%, transparent);
}

.modal-backdrop {
  padding: var(--space-4);
}

.modal {
  width: min(760px, calc(100vw - 32px));
  max-height: calc(100svh - 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-lg);
}

.modal-wide {
  width: min(1080px, calc(100vw - 32px));
}

.modal-header,
.modal-footer {
  border-color: var(--line);
}

@media (max-width: 1024px) {
  .modern-login-container {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .modern-login-left {
    min-height: 360px;
  }

  .login-stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .login-theme-control {
    position: static;
    justify-self: stretch;
    width: min(100%, 320px);
    margin-bottom: var(--space-4);
  }

  .login-theme-control .theme-switch {
    width: 100%;
  }

  .modern-login-page {
    align-content: start;
    padding: var(--space-4) var(--space-3) var(--space-6);
  }

  .modern-login-left,
  .modern-login-right {
    padding: var(--space-6) var(--space-5);
  }

  .modern-login-left {
    min-height: 320px;
  }

  .form-grid,
  .form-grid.three {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .modern-login-container {
    border-radius: var(--radius-lg);
  }

  .modern-login-page {
    padding: var(--space-3);
  }

  .modern-login-left,
  .modern-login-right {
    padding: var(--space-5);
  }

  .modern-login-left {
    min-height: auto;
    justify-items: stretch;
    gap: var(--space-4);
  }

  .school-logo-large {
    justify-self: start;
    width: 68px;
    height: 68px;
    padding: var(--space-2);
  }

  .login-portal-badge {
    min-height: 32px;
    font-size: .76rem;
  }

  .modern-title {
    font-size: 1.58rem;
    line-height: 1.23;
  }

  .modern-subtitle {
    font-size: .9rem;
    line-height: 1.55;
  }

  .login-stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-2);
  }

  .login-stat-card {
    min-height: 76px;
    padding: 10px;
  }

  .login-stat-card .ui-icon {
    width: 17px;
    height: 17px;
  }

  .login-stat-card span {
    font-size: .68rem;
  }

  .login-stat-card strong {
    font-size: 1.22rem;
  }

  .login-form-head {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: var(--space-3);
  }

  .login-form-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
  }

  .modern-input {
    min-height: 50px;
  }

  th,
  td {
    padding: 10px var(--space-3);
  }
}

/* Phase 3: Master data pages and reusable management surfaces. */
.master-panel {
  border-color: color-mix(in srgb, var(--line) 84%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 98%, var(--primary) 2%), var(--surface));
}

.master-panel + .master-panel,
.stack-section {
  margin-top: var(--space-4);
}

.master-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: var(--space-4);
}

.master-panel .panel-header {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary) 6%, transparent), transparent 70%),
    var(--surface);
}

.master-panel .panel-header h3 {
  color: var(--text);
}

.master-panel .panel-header p {
  color: var(--muted);
}

.master-title {
  min-width: 0;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
}

.master-title-icon,
.master-summary-icon,
.master-empty-icon {
  display: grid;
  place-items: center;
  color: var(--primary);
}

.master-title-icon {
  width: 48px;
  height: 48px;
  border: 1px solid color-mix(in srgb, var(--primary) 18%, var(--line));
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--primary) 10%, var(--surface));
}

.master-title h3,
.master-title p {
  min-width: 0;
}

.master-title .ui-icon {
  width: 24px;
  height: 24px;
}

.master-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.master-summary-card {
  min-width: 0;
  min-height: 116px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: var(--space-2);
  padding: var(--space-4);
  border: 1px solid color-mix(in srgb, var(--summary-tone, var(--primary)) 18%, var(--line));
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--summary-tone, var(--primary)) 10%, transparent), transparent 64%),
    var(--surface-soft);
  box-shadow: var(--shadow-sm);
}

.master-summary-card.tone-primary { --summary-tone: var(--primary); }
.master-summary-card.tone-success { --summary-tone: var(--success); }
.master-summary-card.tone-warning { --summary-tone: var(--warning); }
.master-summary-card.tone-info { --summary-tone: var(--info); }
.master-summary-card.tone-muted { --summary-tone: var(--muted); }

.master-summary-card span,
.master-summary-card small {
  display: block;
  min-width: 0;
}

.master-summary-card span {
  color: var(--text);
  font-size: .88rem;
  font-weight: 900;
  line-height: 1.45;
}

.master-summary-card small {
  color: var(--muted);
  font-size: .76rem;
  font-weight: 700;
  line-height: 1.45;
}

.master-summary-card strong {
  color: var(--text);
  font-size: clamp(1.35rem, 2.3vw, 1.8rem);
  font-weight: 900;
  line-height: 1.1;
}

.master-summary-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--summary-tone, var(--primary)) 14%, var(--surface));
  color: var(--summary-tone, var(--primary));
}

.master-summary-icon .ui-icon {
  width: 18px;
  height: 18px;
}

.master-toolbar {
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.master-panel .btn {
  min-height: 46px;
}

.search-field {
  position: relative;
  min-width: min(340px, 100%);
  display: block;
}

.search-field-icon {
  position: absolute;
  top: 50%;
  left: var(--space-3);
  display: grid;
  place-items: center;
  color: var(--muted);
  transform: translateY(-50%);
  pointer-events: none;
}

.search-field-icon .ui-icon {
  width: 18px;
  height: 18px;
}

.search-field .input {
  width: 100%;
  padding-left: 42px;
}

.form-field label {
  display: grid;
  gap: 2px;
  margin: 0;
}

.form-field label small {
  color: var(--muted);
  font-size: .75rem;
  font-weight: 700;
  line-height: 1.35;
}

.form-field label.tone-amber,
.form-field label.tone-amber small {
  color: color-mix(in srgb, var(--warning) 88%, var(--text));
}

.form-field label.tone-danger,
.form-field label.tone-danger small {
  color: color-mix(in srgb, var(--danger) 88%, var(--text));
}

.school-logo-editor {
  margin-bottom: var(--space-4);
  border-color: color-mix(in srgb, var(--primary) 16%, var(--line));
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary) 9%, transparent), transparent 60%),
    var(--surface-soft);
  box-shadow: var(--shadow-sm);
}

.school-logo-preview {
  border-color: color-mix(in srgb, var(--primary) 20%, var(--line));
  background: var(--surface);
}

.school-logo-controls {
  align-content: start;
  gap: var(--space-3);
}

.school-logo-controls h4 {
  color: var(--text);
  font-size: 1rem;
}

.school-logo-controls p,
.school-logo-controls small {
  color: var(--muted);
}

.school-logo-file-button {
  width: fit-content;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.school-logo-file-button input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.school-logo-remove {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text);
  font-weight: 800;
}

.school-timetable-settings {
  margin-top: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
}

.school-timetable-settings .section-heading {
  margin-bottom: var(--space-4);
}

.section-heading h4 {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
  font-weight: 900;
}

.section-heading p {
  margin: var(--space-1) 0 0;
  color: var(--muted);
}

.timetable-settings-table {
  margin-top: var(--space-4);
}

.master-form-footer {
  margin-top: var(--space-4);
  margin-bottom: 0;
}

.master-table-wrap {
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.master-panel th {
  background: var(--surface-soft);
  color: var(--text);
}

.master-panel td {
  border-bottom-color: var(--line);
  color: var(--text);
}

.master-panel tbody tr,
.master-panel tbody tr:nth-child(even) {
  background: var(--surface);
}

.master-panel tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--surface-soft) 58%, var(--surface));
}

.master-panel tbody tr:hover,
.master-panel tbody tr:nth-child(even):hover {
  background: color-mix(in srgb, var(--primary) 7%, var(--surface));
}

.master-table th {
  white-space: nowrap;
}

.master-table td {
  color: var(--text);
}

.action-column {
  text-align: right;
}

.master-table .table-actions {
  justify-content: flex-end;
  gap: var(--space-2);
}

.btn.table-action-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding-block: 10px;
}

.btn.table-action-button .ui-icon {
  width: 16px;
  height: 16px;
}

.master-empty {
  min-height: 180px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: var(--space-2);
  padding: var(--space-8);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
  color: var(--muted);
  text-align: center;
}

.master-empty strong {
  color: var(--text);
  font-size: 1.08rem;
}

.master-empty small {
  max-width: 320px;
  line-height: 1.6;
}

.master-empty-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--primary) 10%, var(--surface));
}

.checkbox-grid {
  gap: var(--space-2);
}

.check-option {
  min-height: 44px;
  padding: 10px var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: border-color var(--motion-med) var(--ease), background var(--motion-med) var(--ease), box-shadow var(--motion-med) var(--ease);
}

.check-option:hover {
  border-color: color-mix(in srgb, var(--primary) 34%, var(--line));
  background: color-mix(in srgb, var(--primary) 6%, var(--surface));
}

.check-option:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}

@media (max-width: 1280px) {
  .master-summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .master-header {
    grid-template-columns: 1fr;
  }

  .master-header > .btn,
  .master-header > .status {
    justify-self: start;
  }

  .master-toolbar {
    align-items: stretch;
  }

  .search-field {
    min-width: 0;
    width: 100%;
  }

  .master-toolbar .toolbar-group {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .master-title {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .master-title-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
  }

  .master-summary-grid {
    grid-template-columns: 1fr;
  }

  .master-summary-card {
    min-height: 96px;
  }

  .school-timetable-settings {
    padding: var(--space-3);
  }

  .master-table tbody {
    background: var(--surface-soft);
  }

  .master-table tr,
  .master-table tr:nth-child(even),
  .master-table tr:hover,
  .master-table tr:nth-child(even):hover {
    border-color: var(--line);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
  }

  .master-table td {
    border-bottom-color: var(--line);
  }

  .master-table td::before {
    color: var(--muted);
  }

  .master-table .table-actions {
    justify-content: stretch;
  }

  .table-action-button {
    flex: 1 1 120px;
    justify-content: center;
    min-height: 44px;
  }
}

/* Phase 4: Student registry and daily attendance. */
.master-summary-card.tone-danger {
  --summary-tone: var(--danger);
}

.entity-students .master-title-icon,
.attendance-workspace-panel .master-title-icon {
  background: color-mix(in srgb, var(--teal) 11%, var(--surface));
  border-color: color-mix(in srgb, var(--teal) 24%, var(--line));
  color: var(--teal);
}

.entity-students .master-summary-card {
  min-height: 108px;
}

.entity-students .master-table td:nth-child(2) {
  font-weight: 900;
}

.attendance-workspace-panel .panel-body {
  display: grid;
  gap: var(--space-4);
  min-width: 0;
}

.attendance-control-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(220px, .85fr) minmax(260px, 1.15fr);
  gap: var(--space-3);
  min-width: 0;
}

.attendance-control-card {
  min-width: 0;
  min-height: 104px;
  display: grid;
  align-content: center;
  gap: var(--space-2);
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
}

.attendance-control-card .select,
.attendance-control-card .input {
  width: 100%;
  background: var(--surface);
}

.attendance-teacher-card {
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
}

.attendance-teacher-card strong,
.attendance-teacher-card small,
.attendance-teacher-card span {
  display: block;
  min-width: 0;
}

.attendance-teacher-card strong {
  color: var(--text);
  font-weight: 900;
}

.attendance-teacher-card small {
  color: var(--muted);
  font-size: .76rem;
  font-weight: 700;
}

.attendance-teacher-card > div > span {
  margin-top: var(--space-1);
  color: var(--text);
  font-weight: 800;
  overflow-wrap: anywhere;
}

.attendance-summary-grid {
  margin-bottom: 0;
}

.attendance-check-form {
  display: grid;
  gap: var(--space-4);
  min-width: 0;
}

.attendance-action-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: 0;
  padding: var(--space-3);
  border: 1px solid color-mix(in srgb, var(--primary) 14%, var(--line));
  border-radius: var(--radius-lg);
  min-width: 0;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary) 7%, transparent), transparent 70%),
    var(--surface-soft);
}

.attendance-action-strip .toolbar-group {
  margin: 0;
}

.attendance-action-strip .check-option {
  background: var(--surface);
}

.attendance-inline-label {
  display: grid;
  gap: 2px;
  color: var(--text);
  font-size: .84rem;
  font-weight: 900;
  line-height: 1.35;
}

.attendance-inline-label small {
  color: var(--muted);
  font-size: .73rem;
  font-weight: 700;
}

.attendance-list-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: var(--space-3);
  min-width: 0;
}

.attendance-list-head h4,
.attendance-list-head p {
  margin: 0;
}

.attendance-list-head h4 {
  color: var(--text);
  font-size: 1.04rem;
  font-weight: 900;
}

.attendance-list-head p {
  margin-top: var(--space-1);
  color: var(--muted);
}

.attendance-check-wrap {
  min-width: 0;
  max-width: 100%;
  overflow: auto;
}

.attendance-check-table {
  min-width: 880px;
}

.attendance-student-row {
  transition: background-color var(--motion-med) var(--ease);
}

.student-number-pill {
  min-width: 58px;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--primary) 10%, var(--surface));
  color: var(--primary);
  font-weight: 900;
}

.attendance-student-name strong,
.attendance-student-name small {
  display: block;
  min-width: 0;
}

.attendance-student-name strong {
  color: var(--text);
  font-weight: 900;
  overflow-wrap: anywhere;
}

.attendance-student-name small {
  color: var(--muted);
  font-size: .76rem;
  font-weight: 700;
}

.attendance-note-input {
  width: 100%;
  min-width: 220px;
}

.attendance-workspace-panel .att-status-buttons {
  grid-template-columns: repeat(4, minmax(74px, 1fr));
  gap: var(--space-2);
}

.attendance-workspace-panel .att-status-btn {
  min-height: 46px;
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--muted);
  font-weight: 900;
  transition: border-color var(--motion-med) var(--ease), background var(--motion-med) var(--ease), color var(--motion-med) var(--ease), box-shadow var(--motion-med) var(--ease);
}

.attendance-workspace-panel .att-status-input:focus-visible + .att-status-btn {
  outline: 3px solid color-mix(in srgb, var(--primary) 34%, transparent);
  outline-offset: 2px;
}

.attendance-workspace-panel .att-status-input:checked + .att-status-btn.status-present {
  border-color: color-mix(in srgb, var(--success) 72%, var(--line));
  background: color-mix(in srgb, var(--success) 14%, var(--surface));
  color: color-mix(in srgb, var(--success) 86%, var(--text));
}

.attendance-workspace-panel .att-status-input:checked + .att-status-btn.status-absent {
  border-color: color-mix(in srgb, var(--danger) 72%, var(--line));
  background: color-mix(in srgb, var(--danger) 14%, var(--surface));
  color: color-mix(in srgb, var(--danger) 86%, var(--text));
}

.attendance-workspace-panel .att-status-input:checked + .att-status-btn.status-sick {
  border-color: color-mix(in srgb, var(--purple) 70%, var(--line));
  background: color-mix(in srgb, var(--purple) 14%, var(--surface));
  color: color-mix(in srgb, var(--purple) 84%, var(--text));
}

.attendance-workspace-panel .att-status-input:checked + .att-status-btn.status-leave {
  border-color: color-mix(in srgb, var(--primary) 70%, var(--line));
  background: color-mix(in srgb, var(--primary) 14%, var(--surface));
  color: color-mix(in srgb, var(--primary) 84%, var(--text));
}

.attendance-form-footer {
  display: flex;
  justify-content: flex-end;
}

.attendance-overview-inline {
  margin-top: var(--space-2);
  padding: var(--space-4);
  min-width: 0;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
}

.attendance-overview-inline-header {
  margin-bottom: var(--space-4);
}

.attendance-overview-inline-header h3 {
  margin: 0;
  color: var(--text);
  font-size: 1.04rem;
  font-weight: 900;
}

.attendance-overview-inline-header p {
  color: var(--muted);
}

.attendance-overview-table {
  color: var(--text);
}

.attendance-overview-table th,
.attendance-overview-table td {
  border-color: var(--line);
}

.attendance-overview-table thead th,
.attendance-overview-table .student-index-col,
.attendance-overview-table .student-code-col,
.attendance-overview-table .student-name-col,
.attendance-overview-table thead .student-index-col,
.attendance-overview-table thead .student-code-col,
.attendance-overview-table thead .student-name-col {
  background: var(--surface-soft);
  color: var(--text);
}

.attendance-date-col.is-closed,
.attendance-day-cell.is-closed {
  background: color-mix(in srgb, var(--danger) 10%, var(--surface));
  color: color-mix(in srgb, var(--danger) 86%, var(--text));
}

.attendance-day-cell.is-inactive {
  background: color-mix(in srgb, var(--muted) 10%, var(--surface));
}

.attendance-day-cell.status-present span {
  background: color-mix(in srgb, var(--success) 16%, var(--surface));
  color: color-mix(in srgb, var(--success) 84%, var(--text));
}

.attendance-day-cell.status-late span {
  background: color-mix(in srgb, var(--warning) 18%, var(--surface));
  color: color-mix(in srgb, var(--warning) 84%, var(--text));
}

.attendance-day-cell.status-sick span {
  background: color-mix(in srgb, var(--purple) 16%, var(--surface));
  color: color-mix(in srgb, var(--purple) 82%, var(--text));
}

.attendance-day-cell.status-leave span {
  background: color-mix(in srgb, var(--primary) 16%, var(--surface));
  color: color-mix(in srgb, var(--primary) 82%, var(--text));
}

.attendance-day-cell.status-absent span {
  background: color-mix(in srgb, var(--danger) 16%, var(--surface));
  color: color-mix(in srgb, var(--danger) 82%, var(--text));
}

.attendance-workspace-panel .attendance-delete-day {
  min-width: 46px;
  min-height: 46px;
  padding: 5px 9px;
}

@media (max-width: 1024px) {
  .attendance-control-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .attendance-teacher-card {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .attendance-action-strip,
  .attendance-list-head,
  .attendance-overview-inline-header {
    align-items: stretch;
    flex-direction: column;
  }

  .attendance-action-strip .toolbar-group,
  .attendance-list-head .toolbar-group {
    justify-content: flex-start;
  }

  .attendance-check-table {
    width: 100% !important;
    min-width: 0;
    max-width: 100%;
    table-layout: auto;
  }

  .attendance-check-table,
  .attendance-check-table tbody,
  .attendance-check-table tr,
  .attendance-check-table td {
    box-sizing: border-box;
    min-width: 0;
    max-width: 100%;
    display: block;
    width: 100%;
  }

  .attendance-check-wrap {
    width: 100%;
    overflow: visible;
  }

  .attendance-check-table tbody {
    display: grid;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--surface-soft);
  }

  .attendance-check-table tr,
  .attendance-check-table tr:nth-child(even) {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
  }

  .attendance-check-table tr:hover,
  .attendance-check-table tr:nth-child(even):hover {
    background: var(--surface);
  }

  .attendance-check-table td {
    min-height: 48px;
    display: grid;
    grid-template-columns: minmax(88px, .42fr) minmax(0, 1fr);
    gap: var(--space-3);
    align-items: center;
    padding: var(--space-3);
    border-bottom: 1px solid var(--line);
    overflow-wrap: anywhere;
  }

  .attendance-check-table td::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: .76rem;
    font-weight: 900;
  }

  .attendance-check-table td:last-child {
    border-bottom: 0;
  }

  .attendance-check-table td[data-label="สถานะ"],
  .attendance-check-table td[data-label="หมายเหตุ"] {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .attendance-check-table .att-status-buttons {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .attendance-note-input {
    min-width: 0;
  }
}

@media (max-width: 640px) {
  .attendance-control-grid {
    grid-template-columns: 1fr;
  }

  .attendance-action-strip {
    padding: var(--space-3);
  }

  .attendance-action-strip .toolbar-group {
    width: 100%;
  }

  .attendance-action-strip .toolbar-group:first-child {
    display: grid;
    grid-template-columns: 1fr;
  }

  .attendance-action-strip .select {
    width: 100%;
    min-width: 0;
  }

  .attendance-action-strip .toolbar-group:last-child,
  .attendance-form-footer {
    width: 100%;
  }

  .attendance-action-strip .toolbar-group:last-child {
    display: grid;
    grid-template-columns: 1fr;
  }

  .attendance-action-strip .toolbar-group:last-child .btn,
  .attendance-form-footer .btn {
    width: 100%;
    justify-content: center;
  }

  .attendance-check-table .table-actions,
  .attendance-workspace-panel .att-status-buttons {
    width: 100%;
  }

  .attendance-overview-inline {
    padding: var(--space-3);
  }
}

/* Phase 5: Home visits and grades. */
.home-visit-panel .master-title-icon,
.grade-panel .master-title-icon {
  background: color-mix(in srgb, var(--primary) 10%, var(--surface));
  border-color: color-mix(in srgb, var(--primary) 24%, var(--line));
  color: var(--primary);
}

.home-visit-panel .panel-body,
.grade-panel .panel-body {
  display: grid;
  gap: var(--space-4);
  min-width: 0;
}

.home-visit-control-grid {
  grid-template-columns: minmax(220px, 1fr) minmax(260px, 1.15fr) minmax(190px, .72fr);
}

.home-visit-status-card {
  align-content: center;
}

.home-visit-status-card small {
  color: var(--muted);
  font-size: .76rem;
  font-weight: 800;
}

.home-visit-summary-grid,
.grade-summary-grid {
  margin-bottom: 0;
}

.home-visit-table-wrap {
  min-width: 0;
  max-width: 100%;
}

.home-visit-table .left strong {
  color: var(--text);
  font-weight: 900;
}

.home-visit-table .table-actions {
  justify-content: flex-end;
}

.home-visit-modal {
  border-radius: var(--radius-lg);
}

.home-visit-form {
  background: var(--surface-soft);
}

.home-visit-section {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-xs);
}

.home-visit-section h4 {
  color: var(--text);
  font-weight: 900;
}

.home-visit-section h5,
.home-visit-check,
.inline-check {
  color: var(--text);
}

.home-visit-check,
.inline-check {
  min-height: 36px;
}

.home-visit-check input,
.inline-check input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

.home-visit-risk-grid > div {
  border-color: var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.grade-header-actions {
  justify-content: flex-end;
}

.grade-filter-shell {
  grid-template-columns: minmax(180px, 1fr) minmax(160px, .72fr) minmax(240px, 1.3fr) minmax(140px, .64fr);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary) 6%, transparent), transparent 72%),
    var(--surface-soft);
}

.grade-filter-shell .form-field label {
  display: grid;
  gap: 2px;
}

.grade-filter-shell .form-field label small {
  color: var(--muted);
  font-size: .73rem;
  font-weight: 700;
}

.grade-filter-shell .compact {
  max-width: none;
}

.grade-stat-grid,
.grade-stat {
  display: contents;
}

.pp5-export-band {
  border-color: color-mix(in srgb, var(--teal) 22%, var(--line));
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--teal) 10%, transparent), transparent 52%),
    var(--surface);
}

.pp5-copy h4 {
  color: var(--text);
  font-weight: 900;
}

.pp5-copy p {
  color: var(--muted);
}

.pp5-section {
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-xs);
}

.pp5-term-section {
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
}

.section-heading h4,
.pp5-term-heading h4 {
  color: var(--text);
  font-weight: 900;
}

.section-heading p,
.pp5-term-heading p {
  color: var(--muted);
}

.pp5-section .table-wrap {
  min-width: 0;
  max-width: 100%;
}

.pp5-section .btn.small {
  min-width: 46px;
  min-height: 46px;
}

/* Phase 6: Sidebar contrast and substitution workspace. */
:root[data-theme="dark"] .sidebar {
  color: var(--on-sidebar);
}

:root[data-theme="dark"] .brand h1,
:root[data-theme="dark"] .nav-label strong {
  color: color-mix(in srgb, var(--on-sidebar) 96%, transparent);
}

:root[data-theme="dark"] .brand p,
:root[data-theme="dark"] .nav-label small,
:root[data-theme="dark"] .sidebar-title {
  color: color-mix(in srgb, var(--on-sidebar) 74%, transparent);
}

:root[data-theme="dark"] .nav-button {
  border-color: transparent;
  color: color-mix(in srgb, var(--on-sidebar) 86%, transparent);
}

:root[data-theme="dark"] .nav-button:hover,
:root[data-theme="dark"] .nav-button.active {
  background: color-mix(in srgb, var(--primary) 26%, transparent);
  border-color: color-mix(in srgb, var(--primary) 42%, var(--sidebar-line));
  color: var(--on-sidebar);
}

:root[data-theme="dark"] .nav-icon {
  background: color-mix(in srgb, var(--on-sidebar) 15%, transparent);
  border-color: color-mix(in srgb, var(--on-sidebar) 16%, transparent);
  color: color-mix(in srgb, var(--on-sidebar) 92%, transparent);
}

:root[data-theme="dark"] .nav-button.active .nav-icon {
  background: color-mix(in srgb, var(--primary) 36%, transparent);
  color: var(--on-sidebar);
}

.substitution-panel .master-title-icon,
.substitution-history-panel .master-title-icon {
  background: color-mix(in srgb, var(--primary) 12%, var(--surface));
  color: var(--primary);
}

.substitution-body,
.substitution-form {
  display: grid;
  gap: var(--space-4);
  min-width: 0;
}

.substitution-summary-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.substitution-control-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.substitution-control-grid .attendance-control-card {
  align-items: start;
}

.substitution-control-grid .form-field {
  width: 100%;
}

.substitution-group {
  margin-top: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.substitution-group > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-soft) 74%, var(--surface));
}

.substitution-group > summary h4,
.substitution-group > summary p {
  margin: 0;
}

.substitution-group > summary h4 {
  color: var(--text);
  font-size: 1rem;
  font-weight: 900;
}

.substitution-group > summary p {
  margin-top: 3px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
}

.substitution-slot {
  margin: 0;
  padding: var(--space-4);
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.substitution-group > summary + .substitution-slot {
  border-top: 0;
}

.substitution-slot-header,
.substitution-slot-actions {
  padding: 0;
}

.substitution-slot .form-grid {
  gap: var(--space-3);
}

.substitution-slot .checkbox-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-2);
}

.substitution-slot .checkbox-grid label {
  min-height: 48px;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface-soft) 62%, var(--surface));
  color: var(--text);
  font-weight: 800;
}

.substitution-action-bar {
  display: grid;
  grid-template-columns: minmax(190px, 1.4fr) repeat(4, minmax(140px, 1fr));
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--surface-soft) 66%, var(--surface));
  box-shadow: var(--shadow-sm);
}

.substitution-action-bar .btn {
  width: 100%;
  min-height: 48px;
  justify-content: center;
}

.substitution-preview {
  max-width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--surface);
}

.substitution-preview .input,
.substitution-preview select {
  min-width: 220px;
}

.substitution-history-panel {
  margin-top: var(--space-4);
}

.substitution-history-table .table-actions {
  justify-content: flex-start;
}

@media (max-width: 1280px) {
  .substitution-summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .substitution-action-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .substitution-summary-grid,
  .substitution-control-grid,
  .substitution-action-bar {
    grid-template-columns: 1fr;
  }

  .substitution-group > summary {
    align-items: stretch;
    flex-direction: column;
  }

  .substitution-slot .checkbox-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .substitution-slot {
    padding: var(--space-3);
  }

  .substitution-slot .checkbox-grid {
    grid-template-columns: 1fr;
  }

  .substitution-history-table .table-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .substitution-history-table .table-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Phase 8: Mobile topbar and user menu stability. */
@media (max-width: 640px) {
  .topbar {
    grid-template-columns: minmax(0, 1fr) !important;
    align-items: stretch;
    gap: var(--space-3) !important;
    overflow: visible !important;
    padding: calc(var(--space-3) + env(safe-area-inset-top, 0px)) var(--space-3) var(--space-3) !important;
  }

  .topbar > .toolbar-group {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    align-items: center;
    gap: var(--space-3);
    width: 100%;
    min-width: 0;
  }

  .topbar > .toolbar-group > .btn.mobile-menu {
    width: 52px;
    height: 52px;
    min-height: 52px;
    justify-self: start;
  }

  .topbar > .toolbar-group > .page-title {
    max-width: none !important;
    min-width: 0;
  }

  .page-title h2,
  .page-title p {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .top-actions {
    position: relative;
    z-index: 30;
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) 56px 86px !important;
    align-items: center;
    gap: var(--space-2) !important;
    width: 100%;
    max-width: 100%;
    overflow: visible !important;
    padding: 0 !important;
  }

  .top-actions .storage-status {
    display: none !important;
  }

  .top-actions .theme-switch.is-compact {
    width: 100%;
    min-width: 0;
  }

  .top-actions > .notification-button,
  .top-actions > .btn.icon-only.notification-button {
    width: 52px !important;
    min-width: 52px;
    min-height: 52px !important;
    justify-self: stretch;
  }

  .notification-count {
    top: -7px;
    right: -7px;
  }

  .top-actions .user-menu {
    position: static;
    width: 86px;
    min-width: 0;
    justify-self: end;
  }

  .top-actions .topbar-user,
  .top-actions .user-pill {
    width: 86px !important;
    min-width: 0;
    min-height: 52px !important;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-2);
  }

  .top-actions .topbar-user > span:nth-child(2),
  .top-actions .topbar-user .small {
    display: none !important;
  }

  .top-actions .topbar-user .avatar {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
  }

  .top-actions .topbar-user .ui-icon,
  .top-actions .topbar-user .lucide {
    width: 18px;
    height: 18px;
  }

  .user-menu-panel {
    position: fixed !important;
    top: calc(128px + env(safe-area-inset-top, 0px));
    right: var(--space-3) !important;
    left: var(--space-3);
    z-index: 90;
    width: auto !important;
    max-height: calc(100svh - 146px - env(safe-area-inset-top, 0px));
    overflow-y: auto;
    border-radius: var(--radius-lg);
  }
}

@media (max-width: 380px) {
  .top-actions {
    grid-template-columns: minmax(0, 1fr) 50px 78px !important;
  }

  .top-actions > .notification-button,
  .top-actions > .btn.icon-only.notification-button {
    width: 50px !important;
    min-width: 50px;
  }

  .top-actions .user-menu,
  .top-actions .topbar-user,
  .top-actions .user-pill {
    width: 78px !important;
  }

  .theme-switch button span {
    font-size: .78rem;
  }
}

/* Phase 7: Home-visit pattern alignment for legacy menu pages. */
.content > .card,
.content > .panel,
.report-grid > .panel,
.school-timetable-settings,
.timetable-builder,
.substitutions-workspace {
  border-color: var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.content > .card > .section-heading,
.content > .panel > .panel-header,
.report-grid > .panel > .panel-header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-soft) 58%, var(--surface));
}

.content > .card > .section-heading h3,
.content > .panel > .panel-header h3,
.report-grid > .panel > .panel-header h3 {
  color: var(--text);
}

.content > .card > .section-heading p,
.content > .panel > .panel-header p,
.report-grid > .panel > .panel-header p {
  color: var(--muted);
}

:root[data-theme="dark"] .content > .card,
:root[data-theme="dark"] .content > .panel,
:root[data-theme="dark"] .report-grid > .panel,
:root[data-theme="dark"] .school-timetable-settings,
:root[data-theme="dark"] .timetable-builder,
:root[data-theme="dark"] .substitutions-workspace {
  border-color: var(--line);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary) 7%, transparent), transparent 42%),
    var(--surface);
  color: var(--text);
}

:root[data-theme="dark"] .content > .card > .section-heading,
:root[data-theme="dark"] .content > .panel > .panel-header,
:root[data-theme="dark"] .report-grid > .panel > .panel-header {
  border-bottom-color: var(--line);
  background: color-mix(in srgb, var(--surface-soft) 68%, var(--surface));
}

:root[data-theme="dark"] .content > .card > .section-heading h3,
:root[data-theme="dark"] .content > .panel > .panel-header h3,
:root[data-theme="dark"] .report-grid > .panel > .panel-header h3,
:root[data-theme="dark"] .section-heading h3,
:root[data-theme="dark"] .section-heading h4 {
  color: var(--text);
}

:root[data-theme="dark"] .content > .card > .section-heading p,
:root[data-theme="dark"] .content > .panel > .panel-header p,
:root[data-theme="dark"] .report-grid > .panel > .panel-header p,
:root[data-theme="dark"] .section-heading p {
  color: var(--muted);
}

:root[data-theme="dark"] .table-wrap,
:root[data-theme="dark"] .table-wrapper,
:root[data-theme="dark"] .dashboard-table-scroll,
:root[data-theme="dark"] .dashboard-grade-table-wrap {
  border-color: var(--line);
  background: var(--surface);
}

:root[data-theme="dark"] table {
  background: var(--surface);
  color: var(--text);
}

:root[data-theme="dark"] thead th,
:root[data-theme="dark"] .master-table th {
  border-color: var(--line);
  background: color-mix(in srgb, var(--surface-soft) 78%, var(--surface));
  color: color-mix(in srgb, var(--text) 92%, transparent);
}

:root[data-theme="dark"] tbody tr,
:root[data-theme="dark"] tbody tr:nth-child(even) {
  background: var(--surface);
}

:root[data-theme="dark"] tbody tr:hover,
:root[data-theme="dark"] tbody tr:nth-child(even):hover {
  background: color-mix(in srgb, var(--primary) 10%, var(--surface));
}

:root[data-theme="dark"] td,
:root[data-theme="dark"] th {
  border-color: var(--line);
}

:root[data-theme="dark"] .timetable-builder .section-heading,
:root[data-theme="dark"] .school-timetable-settings .section-heading {
  background: color-mix(in srgb, var(--surface-soft) 68%, var(--surface));
}

:root[data-theme="dark"] .calendar-cell,
:root[data-theme="dark"] .timetable-row,
:root[data-theme="dark"] .metric-card,
:root[data-theme="dark"] .report-card,
:root[data-theme="dark"] .chart-bars,
:root[data-theme="dark"] .attendance-daily-signature-block,
:root[data-theme="dark"] .attendance-daily-duty {
  border-color: var(--line);
  background: color-mix(in srgb, var(--surface-soft) 62%, var(--surface));
  color: var(--text);
}

:root[data-theme="dark"] .attendance-daily-panel {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary) 7%, transparent), transparent 44%),
    var(--surface);
}

:root[data-theme="dark"] .attendance-daily-panel .panel-body {
  background: transparent;
}

:root[data-theme="dark"] .attendance-daily-meta {
  color: var(--text);
}

:root[data-theme="dark"] .attendance-daily-title {
  color: var(--text);
}

:root[data-theme="dark"] .attendance-daily-subtitle {
  color: var(--muted);
}

:root[data-theme="dark"] .attendance-daily-table {
  border-collapse: separate;
  border-spacing: 0;
  background: var(--surface);
}

:root[data-theme="dark"] .attendance-daily-table th,
:root[data-theme="dark"] .attendance-daily-table td {
  border-color: color-mix(in srgb, var(--line) 86%, transparent);
  background: color-mix(in srgb, var(--surface-soft) 54%, var(--surface));
  color: color-mix(in srgb, var(--text) 92%, transparent);
}

:root[data-theme="dark"] .attendance-daily-table thead th,
:root[data-theme="dark"] .attendance-daily-table tfoot th {
  background: color-mix(in srgb, var(--primary) 16%, var(--surface-soft));
  color: var(--text);
}

:root[data-theme="dark"] .attendance-daily-table tbody tr:nth-child(even) td {
  background: color-mix(in srgb, var(--surface-soft) 76%, var(--surface));
}

:root[data-theme="dark"] .attendance-daily-table tbody tr:hover td {
  background: color-mix(in srgb, var(--primary) 14%, var(--surface-soft));
}

:root[data-theme="dark"] .attendance-daily-wrap {
  border-color: var(--line);
  background: var(--surface);
}

:root[data-theme="dark"] .dashboard-schedule-table,
:root[data-theme="dark"] .dashboard-grade-table {
  background: var(--surface);
}

:root[data-theme="dark"] .dashboard-schedule-table td,
:root[data-theme="dark"] .dashboard-grade-table td {
  background: color-mix(in srgb, var(--surface-soft) 58%, var(--surface));
  color: var(--text);
}

:root[data-theme="dark"] .dashboard-table-break {
  background: color-mix(in srgb, var(--amber) 18%, var(--surface));
  color: color-mix(in srgb, var(--amber) 86%, var(--text));
}

:root[data-theme="dark"] .dashboard-list-item,
:root[data-theme="dark"] .dashboard-empty {
  border-color: var(--line);
  background: color-mix(in srgb, var(--surface-soft) 66%, var(--surface)) !important;
  color: var(--text);
}

:root[data-theme="dark"] .dashboard-list-item strong {
  color: var(--text);
}

:root[data-theme="dark"] .dashboard-list-item span,
:root[data-theme="dark"] .dashboard-empty {
  color: var(--muted);
}

:root[data-theme="dark"] .bar-track,
:root[data-theme="dark"] .dashboard-bar-track {
  background: color-mix(in srgb, var(--surface-soft) 86%, var(--surface)) !important;
  border: 1px solid var(--line);
}

:root[data-theme="dark"] .chart-bars .bar-label {
  color: var(--text);
}

:root[data-theme="dark"] .chart-bars .small,
:root[data-theme="dark"] .chart-bars .muted {
  color: var(--muted);
}

:root[data-theme="dark"] .timetable-grid-scroll {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg) !important;
  background: var(--surface);
}

:root[data-theme="dark"] .timetable-grid-table {
  border-collapse: separate !important;
  border-spacing: 0 !important;
  background: var(--surface) !important;
  color: var(--text) !important;
}

:root[data-theme="dark"] .timetable-grid-table th,
:root[data-theme="dark"] .timetable-grid-table td {
  border-color: var(--line) !important;
  background: color-mix(in srgb, var(--surface-soft) 58%, var(--surface)) !important;
  color: var(--text) !important;
}

:root[data-theme="dark"] .timetable-grid-table thead th {
  background: color-mix(in srgb, var(--primary) 12%, var(--surface-soft)) !important;
  color: var(--text) !important;
}

:root[data-theme="dark"] .timetable-grid-table th[style*="fef3c7"],
:root[data-theme="dark"] .timetable-grid-table td[style*="fffbeb"] {
  background: color-mix(in srgb, var(--amber) 18%, var(--surface)) !important;
  color: color-mix(in srgb, var(--amber) 88%, var(--text)) !important;
}

:root[data-theme="dark"] .timetable-grid-table th[style*="fee2e2"],
:root[data-theme="dark"] .timetable-grid-table td[style*="fef2f2"] {
  background: color-mix(in srgb, var(--red) 16%, var(--surface)) !important;
  color: color-mix(in srgb, var(--red) 82%, var(--text)) !important;
}

:root[data-theme="dark"] .timetable-grid-table strong,
:root[data-theme="dark"] .timetable-grid-table td div {
  color: var(--text) !important;
}

:root[data-theme="dark"] .timetable-grid-table td div + div {
  color: color-mix(in srgb, var(--primary) 88%, var(--text)) !important;
}

:root[data-theme="dark"] .timetable-grid-table td div:last-child {
  color: var(--muted) !important;
}

/* Sidebar viewport stability fix. */
@media (min-width: 1025px) {
  .app-shell {
    isolation: isolate;
  }

  .sidebar,
  .app-shell.is-sidebar-collapsed .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 20;
    height: auto;
    min-height: 100svh;
    max-height: 100svh;
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
  }

  .sidebar {
    width: 288px;
  }

  .app-shell.is-sidebar-collapsed .sidebar {
    width: 84px;
  }

  .main {
    grid-column: 2;
  }
}

/* Phase 9: Production-safe mobile drawer visibility. */
@media (max-width: 1024px) {
  .sidebar,
  .app-shell.is-sidebar-collapsed .sidebar {
    position: fixed !important;
    inset: 0 auto 0 0 !important;
    z-index: 120 !important;
    width: min(320px, 88vw) !important;
    height: 100dvh !important;
    min-height: 100dvh !important;
    max-height: 100dvh !important;
    opacity: 1;
    visibility: visible;
    transform: translate3d(-105%, 0, 0) !important;
    transition: transform 240ms var(--ease);
    will-change: transform;
  }

  body.drawer-open .sidebar,
  body.drawer-open .app-shell.is-sidebar-collapsed .sidebar,
  .drawer-open .sidebar,
  .drawer-open .app-shell.is-sidebar-collapsed .sidebar {
    transform: translate3d(0, 0, 0) !important;
  }

  .drawer-scrim {
    z-index: 100 !important;
  }

  body.drawer-open {
    overflow: hidden;
  }
}

@media (max-width: 1024px) {
  .home-visit-control-grid,
  .grade-filter-shell {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .home-visit-control-grid {
    grid-template-columns: 1fr;
  }

  .grade-header-actions,
  .pp5-export-band,
  .pp5-copy,
  .pp5-actions,
  .section-heading,
  .pp5-term-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .grade-header-actions,
  .pp5-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .grade-filter-shell {
    grid-template-columns: 1fr;
  }

  .grade-panel .panel-header .btn,
  .pp5-actions .btn,
  .pp5-actions .status {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .home-visit-panel .table-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .home-visit-panel .table-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .home-visit-table tbody {
    background: var(--surface-soft);
  }

  .home-visit-table tbody tr:not(:has(.empty)) {
    border-color: var(--line);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
  }

  .home-visit-table tbody tr:not(:has(.empty)) td:first-child {
    color: var(--primary);
  }

  .home-visit-table tbody tr:not(:has(.empty)) td:last-child {
    background: var(--surface-soft);
  }

  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(3)::before,
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(4)::before,
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(5)::before,
  .home-visit-table tbody tr:not(:has(.empty)) td:nth-child(6)::before {
    color: var(--muted);
  }

  .pp5-section {
    padding: var(--space-3);
  }
}

/* Phase 10: Consistent PP5 student identity columns. */
@media (max-width: 640px) {
  .pp5-student-table {
    --pp5-no-col: 82px;
    --pp5-name-col: 224px;
  }
}