:root {
  --red: #ee140a;
  --red-dark: #b92e28;
  --red-soft: #fff1f2;
  --body: #f8f9fa;
  --panel: #ffffff;
  --text: #191919;
  --muted: #6b7280;
  --line: #e8e8ec;
  --sidebar: #ffffff;
  --sidebar-text: #323232;
  --topbar: rgba(255, 255, 255, .92);
  --input-bg: #ffffff;
  --input-border: #d7dce3;
  --dropdown-bg: #ffffff;
  --dropdown-text: #191919;
  --table-stripe: rgba(31, 41, 55, .025);
  --shadow: 0 18px 42px rgba(31, 41, 55, .09);
  --radius: 8px;
}

[data-theme="dark"] {
  --body: #111113;
  --panel: #1b1b1f;
  --text: #f5f5f5;
  --muted: #a1a1aa;
  --line: #2f2f35;
  --sidebar: #17171a;
  --sidebar-text: #e5e7eb;
  --topbar: rgba(27, 27, 31, .92);
  --input-bg: #1f2937;
  --input-border: #374151;
  --dropdown-bg: #1f2937;
  --dropdown-text: #ffffff;
  --table-stripe: rgba(255, 255, 255, .035);
  --red-soft: rgba(214, 58, 51, .18);
  --shadow: 0 18px 42px rgba(0, 0, 0, .28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--body);
  font-family: "Poppins", system-ui, sans-serif;
  letter-spacing: 0;
  overflow-x: hidden;
}

a {
  color: var(--red);
  text-decoration: none;
}

body,
.panel,
.kpi-card,
.summary-card,
.class-card,
.modal-content,
.dropdown-menu,
.toast,
.table,
.fc {
  color: var(--text);
}

.app-shell {
  min-height: 100vh;
  display: flex;
}

.sidebar {
  width: 282px;
  min-height: 100vh;
  background: var(--sidebar);
  color: var(--sidebar-text);
  border-right: 1px solid var(--line);
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  padding: 18px 14px;
  transition: width .22s ease, transform .22s ease;
}

body.sidebar-collapsed .sidebar {
  width: 88px;
}

.brand {
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 8px 18px;
}

.brand-logo,
.preloader-logo,
.auth-logo,
.brand-mark,
.avatar,
.auth-mark {
  background: var(--red);
  color: #fff;
  display: inline-grid;
  place-items: center;
  font-weight: 800;
}


.brand-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  background: transparent;
  border-radius: 50%;
  flex: 0 0 auto;
}

.auth-logo {
  width: 124px;
  height: auto;
  object-fit: contain;
  background: transparent;
  margin-bottom: 18px;
}

.preloader {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  background: var(--body);
  transition: opacity .35s ease, visibility .35s ease;
}

.preloader.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.preloader-card {
  min-width: 220px;
  padding: 28px;
  display: grid;
  place-items: center;
  gap: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  text-align: center;
}

.preloader-logo {
  max-width: 150px;
  width: 42vw;
  height: auto;
  object-fit: contain;
  background: transparent;
  animation: logoPulse 1.4s ease-in-out infinite;
}

.preloader-card p {
  margin: 0;
  color: var(--muted);
  font-weight: 600;
}

.loader-ring {
  width: 42px;
  height: 42px;
  border: 4px solid var(--red-soft);
  border-top-color: var(--red);
  border-radius: 999px;
  animation: spin .8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes logoPulse {
  50% {
    transform: scale(1.04);
  }
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  z-index: 1030;
  background: rgba(17, 24, 39, .48);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}

.mobile-overlay.show {
  opacity: 1;
  visibility: visible;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  flex: 0 0 auto;
}

.brand strong,
.brand small {
  display: block;
  white-space: nowrap;
}

.brand small {
  color: var(--muted);
  font-size: .76rem;
}

.sidebar-nav {
  display: grid;
  gap: 4px;
  overflow-y: auto;
}

.sidebar .nav-link,
.logout {
  color: var(--sidebar-text);
  border-radius: var(--radius);
  padding: 11px 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .9rem;
  font-weight: 500;
  transition: background .18s ease, color .18s ease;
}

.sidebar .nav-link i,
.logout i {
  color: var(--red);
  font-size: 1.08rem;
  flex: 0 0 22px;
  text-align: center;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active,
.logout:hover {
  background: var(--red-soft);
  color: var(--red);
}

.sidebar .nav-link.active {
  box-shadow: inset 3px 0 0 var(--red);
}

.logout {
  margin-top: auto;
  width: 100%;
  border: 0;
  background: transparent;
  text-align: left;
}

body.sidebar-collapsed .brand div,
body.sidebar-collapsed .sidebar .nav-link span,
body.sidebar-collapsed .logout span {
  display: none;
}

.content-shell {
  min-width: 0;
  flex: 1;
  margin-left: 282px;
  transition: margin-left .22s ease;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

body.sidebar-collapsed .content-shell {
  margin-left: 88px;
}

.topbar {
  min-height: 72px;
  background: var(--topbar);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 1020;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 24px;
}

.search-form {
  height: 42px;
  max-width: 520px;
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 13px;
}

.search-form input {
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  width: 100%;
}

.topbar-actions,
.head-actions,
.toolbar,
.calendar-strip,
.workflow,
.filter-pills,
.class-actions {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-wrap: wrap;
}

.topbar-actions {
  margin-left: auto;
}

.icon-btn,
.profile-btn,
.actions button,
.report-grid button {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: var(--radius);
}

.icon-btn,
.profile-btn {
  height: 40px;
  min-width: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
}

.icon-btn:hover,
.profile-btn:hover,
.btn-light:hover,
.actions button:hover,
.report-grid button:hover {
  border-color: var(--red);
  color: var(--red);
  background: var(--red-soft);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--red);
  position: absolute;
  top: 8px;
  right: 9px;
}

.avatar {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  font-size: .76rem;
}

.main-content {
  padding: 26px;
  flex: 1;
}

.app-footer {
  padding: 18px 26px;
  border-top: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-size: .88rem;
}

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
}

.breadcrumb {
  margin-bottom: 5px;
  font-size: .84rem;
}

.breadcrumb,
.breadcrumb a,
.breadcrumb-item.active {
  color: var(--muted);
}

.page-head h1 {
  margin: 0;
  font-size: clamp(1.45rem, 2vw, 2rem);
  font-weight: 800;
}

.kpi-grid,
.summary-grid,
.settings-grid,
.report-grid {
  display: grid;
  gap: 16px;
}

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

.summary-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 22px;
}

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

.report-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 18px;
}

.panel,
.kpi-card,
.summary-card,
.class-card,
.auth-card,
.insight-card,
.timeline-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel {
  padding: 20px;
  margin-bottom: 22px;
}

.kpi-card {
  min-height: 152px;
  padding: 18px;
}

.class-card {
  padding: 18px;
}

.summary-card {
  padding: 18px;
  border-left: 4px solid var(--red);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.panel h2,
.class-card h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

.panel-head span,
.kpi-card p,
.kpi-card small,
.summary-card span,
.class-card p,
.teacher-card p,
.notification-list small,
.profile-stack span {
  color: var(--muted);
}

.kpi-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  display: inline-grid;
  place-items: center;
  color: #fff;
  margin-bottom: 14px;
  background: var(--red);
}

.bg-red,
.bg-blue,
.bg-green,
.bg-violet,
.bg-orange,
.bg-cyan {
  background: var(--red);
}

.kpi-card p,
.kpi-card small {
  margin: 0;
}

.kpi-card strong,
.summary-card strong {
  display: block;
  font-size: 1.68rem;
  line-height: 1.1;
  margin: 5px 0 6px;
}

.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--text);
  margin-bottom: 0;
  font-size: .9rem;
}

.table thead th {
  color: var(--text);
  background: var(--red-soft);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.table td,
.table th {
  padding: 13px 12px;
  vertical-align: middle;
  border-color: var(--line);
}

.table-responsive {
  width: 100%;
}

.table-responsive.has-actions,
.table-responsive:has(.action-menu),
.dt-container:has(.action-menu),
.dataTables_wrapper:has(.action-menu) {
  overflow: visible;
}

.dataTables_wrapper,
.dt-container,
.dt-search,
.dt-length,
.dt-info,
.dt-paging {
  color: var(--text);
}

.dt-search input,
.dt-length select,
.form-control,
.form-select {
  background-color: var(--input-bg);
  border-color: var(--input-border);
  color: var(--text);
  border-radius: var(--radius);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] textarea.form-control,
[data-theme="dark"] .dt-search input,
[data-theme="dark"] .dt-length select,
[data-theme="dark"] .form-control:disabled,
[data-theme="dark"] .form-select:disabled {
  background-color: var(--input-bg);
  border-color: var(--input-border);
  color: #ffffff;
}

[data-theme="dark"] select option {
  background: #1f2937;
  color: #ffffff;
}

[data-theme="dark"] .form-control::placeholder,
[data-theme="dark"] textarea.form-control::placeholder {
  color: #cbd5e1;
}

[data-theme="dark"] .form-floating>label,
[data-theme="dark"] label,
[data-theme="dark"] .panel h2,
[data-theme="dark"] .card-title,
[data-theme="dark"] .modal-title,
[data-theme="dark"] .page-head h1,
[data-theme="dark"] .summary-tile strong,
[data-theme="dark"] .alert-row,
[data-theme="dark"] .quick-action,
[data-theme="dark"] .table thead th,
[data-theme="dark"] .table td,
[data-theme="dark"] .list-group-item {
  color: #ffffff;
}

[data-theme="dark"] .list-group-item {
  background-color: transparent;
  border-color: var(--line);
}

[data-theme="dark"] .text-muted,
[data-theme="dark"] .panel-head span,
[data-theme="dark"] .summary-card span,
[data-theme="dark"] .kpi-card small,
[data-theme="dark"] .kpi-card p,
[data-theme="dark"] .breadcrumb,
[data-theme="dark"] .breadcrumb a,
[data-theme="dark"] .breadcrumb-item.active {
  color: #cbd5e1 !important;
}

[data-theme="dark"] .btn-close {
  filter: invert(1) grayscale(100%) brightness(200%);
}

.dt-search input:focus,
.form-control:focus,
.form-select:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 .18rem rgba(214, 58, 51, .16);
}

.dt-container .row:last-child,
.dt-layout-row:last-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.dt-container .dt-paging,
.dt-paging {
  margin-left: auto;
  display: flex;
  justify-content: flex-end;
  margin-top: 12px;
}

.dt-container .dt-paging .dt-paging-button.page-item.active .page-link,
.dt-container .pagination .page-item.active .page-link {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

.dt-container .page-link {
  color: var(--red);
  background: var(--panel);
  border-color: var(--line);
}

.dt-container .page-link:hover {
  color: #fff;
  background: var(--red);
  border-color: var(--red);
}

.data-table tbody tr:hover,
.data-table tbody tr.selected {
  --bs-table-bg: var(--red-soft);
}

.data-table {
  border: 1px solid var(--line);
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
}

.data-table tbody tr:nth-child(even) {
  --bs-table-bg: var(--table-stripe);
}

.data-table thead th {
  border-top: 1px solid var(--line);
}

.action-menu .dropdown-menu {
  z-index: 2050;
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  animation: dropdownIn .14s ease;
  min-width: 164px;
  background: var(--dropdown-bg);
  color: var(--dropdown-text);
  border: 1px solid var(--line);
  position: absolute;
}

.action-menu .icon-btn::after {
  display: none;
}

.action-menu .dropdown-item {
  color: var(--dropdown-text);
  display: flex;
  align-items: center;
  min-height: 38px;
}

.action-menu .dropdown-item:hover,
.action-menu .dropdown-item:focus {
  background: var(--red-soft);
  color: var(--red);
}

@keyframes dropdownIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.actions {
  white-space: nowrap;
}

.actions button {
  min-height: 31px;
  padding: 5px 8px;
  margin-right: 4px;
}

.notification-list,
.profile-stack {
  display: grid;
  gap: 10px;
}

.notification-list>div,
.profile-stack>div,
.calendar-strip span,
.workflow span,
.filter-pills button,
.notice-chip {
  border: 1px solid var(--line);
  background: var(--body);
  border-radius: var(--radius);
  padding: 11px 12px;
}

.timeline {
  position: relative;
  display: grid;
  gap: 12px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 10px;
  align-items: start;
}

.timeline-dot {
  width: 12px;
  height: 12px;
  margin: 7px auto 0;
  border-radius: 999px;
  background: var(--red);
  box-shadow: 0 0 0 5px var(--red-soft);
}

.alert-stack {
  display: grid;
  gap: 10px;
}

.alert-row,
.quick-action {
  border: 1px solid var(--line);
  background: var(--body);
  border-radius: var(--radius);
  padding: 12px;
}

.quick-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.quick-action {
  min-height: 92px;
  display: grid;
  align-content: center;
  gap: 8px;
  color: var(--text);
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.quick-action:hover,
.panel:hover,
.class-card:hover,
.kpi-card:hover {
  transform: translateY(-2px);
}

.quick-action:hover {
  border-color: var(--red);
  background: var(--red-soft);
}

.notification-list>div {
  display: flex;
  align-items: center;
  gap: 12px;
}

.notification-list span {
  flex: 1;
}

.profile-stack>div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.teacher-card {
  text-align: center;
}

.teacher-photo {
  width: 84px;
  height: 84px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  margin: 0 auto 14px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 1.35rem;
  font-weight: 800;
}

.workflow span.done {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

.filter-pills {
  margin-bottom: 18px;
}

.filter-pills button.active {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

.class-card>div:first-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.class-card p {
  margin: 13px 0;
}

.class-card a {
  overflow-wrap: anywhere;
}

.class-actions {
  margin-top: 18px;
  justify-content: space-between;
}

.progress {
  min-width: 160px;
  height: 18px;
  border-radius: 999px;
  background: var(--line);
}

.progress-bar {
  background-color: var(--red);
}

.settings-grid label {
  color: var(--muted);
  font-size: .88rem;
  font-weight: 600;
}

.settings-grid .form-control,
.settings-grid .form-select {
  margin-top: 7px;
}

.form-check {
  align-self: end;
  padding: 12px 12px 12px 46px;
  /* border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--body); */
}

.form-check-input:checked {
  background-color: var(--red);
  border-color: var(--red);
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.quick-grid .btn {
  min-height: 70px;
}

.report-grid button {
  text-align: left;
  font-weight: 600;
  padding: 12px;
}

.nav-tabs,
.nav-pills {
  gap: 6px;
}

.nav-tabs .nav-link,
.nav-pills .nav-link {
  border-radius: var(--radius);
  color: var(--muted);
}

.nav-pills .nav-link.active,
.nav-tabs .nav-link.active {
  color: #fff;
  background: var(--red);
  border-color: var(--red);
}

.notice-chip {
  display: inline-flex;
  margin: 4px;
}

.btn {
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-weight: 600;
}

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

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

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

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

.btn-light {
  background: var(--panel);
  border-color: var(--line);
  color: var(--text);
}

.modal-content,
.dropdown-menu,
.toast {
  background: var(--dropdown-bg);
  color: var(--dropdown-text);
  border-color: var(--line);
}

.modal-content,
.toast {
  background: var(--panel);
  color: var(--text);
}

.dropdown-item {
  color: var(--dropdown-text);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background: var(--red-soft);
  color: var(--red);
}

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

.form-floating>label {
  color: var(--muted);
}

.invalid-feedback,
.valid-feedback {
  display: none;
}

.was-validated .form-control:invalid~.invalid-feedback,
.was-validated .form-select:invalid~.invalid-feedback,
.was-validated .form-control:valid~.valid-feedback,
.was-validated .form-select:valid~.valid-feedback {
  display: block;
}

.was-validated .form-control:invalid,
.was-validated .form-select:invalid {
  border-color: #dc3545;
}

.was-validated .form-control:valid,
.was-validated .form-select:valid {
  border-color: #198754;
}

.calendar-toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.calendar-toolbar .form-select {
  max-width: 220px;
}

.calendar-shell {
  min-height: 680px;
}

.booking-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 22px;
  align-items: start;
}

.booking-main,
.booking-summary {
  margin-bottom: 0;
}

.booking-summary {
  position: sticky;
  top: 92px;
}

.booking-summary h3 {
  font-size: .95rem;
  margin: 20px 0 10px;
}

.summary-tile {
  border: 1px solid var(--line);
  background: var(--body);
  border-radius: var(--radius);
  padding: 14px;
  margin-top: 12px;
}

.summary-tile span {
  display: block;
  color: var(--muted);
  font-size: .84rem;
}

.summary-tile strong {
  display: block;
  font-size: 1.6rem;
}

.fc {
  color: var(--text);
  font-size: .92rem;
}

.fc a,
.fc .fc-col-header-cell-cushion,
.fc .fc-daygrid-day-number,
.fc .fc-list-day-text,
.fc .fc-list-day-side-text,
.fc .fc-timegrid-slot-label,
.fc .fc-list-event-title,
.fc .fc-list-event-time {
  color: var(--text);
}

[data-theme="dark"] .fc a,
[data-theme="dark"] .fc .fc-col-header-cell-cushion,
[data-theme="dark"] .fc .fc-daygrid-day-number,
[data-theme="dark"] .fc .fc-list-day-text,
[data-theme="dark"] .fc .fc-list-day-side-text,
[data-theme="dark"] .fc .fc-timegrid-slot-label,
[data-theme="dark"] .fc .fc-list-event-title,
[data-theme="dark"] .fc .fc-list-event-time {
  color: #ffffff;
}

.fc .fc-button-primary {
  background: var(--red);
  border-color: var(--red);
}

.fc .fc-button-primary:hover,
.fc .fc-button-primary:not(:disabled).fc-button-active {
  background: var(--red-dark);
  border-color: var(--red-dark);
}

.fc .fc-toolbar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.fc .fc-daygrid-event,
.fc .fc-timegrid-event {
  border-radius: 6px;
  border: 0;
  padding: 5px 7px;
  color: #fff;
  box-shadow: 0 8px 20px rgba(31, 41, 55, .16);
  white-space: normal;
  overflow: visible;
  min-height: 28px;
  max-height: 32px;
  overflow: hidden;
}

.fc .fc-daygrid-event-harness,
.fc .fc-daygrid-event,
.fc .fc-timegrid-event,
.fc .fc-event-main,
.fc .fc-event-main-frame {
  max-width: 100%;
}

.fc .fc-daygrid-dot-event {
  align-items: flex-start;
  white-space: normal;
}

.fc .fc-event-title,
.fc .fc-daygrid-dot-event .fc-event-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.fc-event-main strong,
.fc-event-main span,
.fc-event-main small {
  display: block;
  color: #222 !important;
  line-height: 1.25;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.fc .fc-scrollgrid,
.fc-theme-standard td,
.fc-theme-standard th {
  border-color: var(--line);
}

.fc .fc-scrollgrid,
.fc .fc-list,
.fc .fc-list-table,
.fc .fc-list-day-cushion,
.fc .fc-list-event:hover td,
.fc .fc-timegrid-slot,
.fc .fc-timegrid-axis,
.fc .fc-daygrid-day,
.fc .fc-col-header-cell {
  background: var(--panel);
  color: var(--text);
}

.fc .fc-list-event td,
.fc .fc-list-day-cushion {
  color: var(--text);
  border-color: var(--line);
}

[data-theme="dark"] .fc .fc-scrollgrid,
[data-theme="dark"] .fc .fc-list,
[data-theme="dark"] .fc .fc-list-table,
[data-theme="dark"] .fc .fc-list-day-cushion,
[data-theme="dark"] .fc .fc-list-event:hover td,
[data-theme="dark"] .fc .fc-timegrid-slot,
[data-theme="dark"] .fc .fc-timegrid-axis,
[data-theme="dark"] .fc .fc-daygrid-day,
[data-theme="dark"] .fc .fc-col-header-cell {
  background: var(--panel);
  color: #ffffff;
}

[data-theme="dark"] .fc .fc-list-event td,
[data-theme="dark"] .fc .fc-list-day-cushion {
  color: #ffffff;
  border-color: var(--line);
}

.fc .fc-daygrid-day:hover,
.fc .fc-timegrid-slot:hover {
  background: var(--red-soft);
}

/* Calendar text visibility */
.fc-theme-standard .fc-scrollgrid,
.fc-theme-standard td,
.fc-theme-standard th {
  background: var(--panel);
  color: var(--text);
}

.fc .fc-daygrid-day-number,
.fc .fc-col-header-cell-cushion,
.fc .fc-toolbar-title,
.fc .fc-list-event-title,
.fc .fc-list-event-time,
.fc .fc-timegrid-axis-cushion {
  color: var(--text) !important;
}

.fc-day-today {
  background: rgba(214, 58, 51, 0.08) !important;
}

.booking-details {
  border: 1px solid var(--line);
  background: var(--body);
  border-radius: var(--radius);
  padding: 12px;
}

[data-theme="dark"] .booking-main,
[data-theme="dark"] .booking-summary,
[data-theme="dark"] .booking-modal .modal-content {
  background: #1b1b1f;
  color: #f8fafc;
  border-color: #34343b;
}

[data-theme="dark"] .calendar-toolbar .form-select,
[data-theme="dark"] .booking-modal .form-select,
[data-theme="dark"] .booking-modal .form-control,
[data-theme="dark"] .booking-modal textarea.form-control {
  background-color: #1f2937;
  border-color: #4b5563;
  color: #f8fafc;
}

[data-theme="dark"] .calendar-toolbar .form-select:focus,
[data-theme="dark"] .booking-modal .form-select:focus,
[data-theme="dark"] .booking-modal .form-control:focus {
  background-color: #243244;
  border-color: var(--red);
  color: #ffffff;
  box-shadow: 0 0 0 .2rem rgba(238, 20, 10, .18);
}

[data-theme="dark"] .calendar-toolbar .form-select option,
[data-theme="dark"] .booking-modal .form-select option {
  background: #1f2937;
  color: #f8fafc;
}

[data-theme="dark"] .modal .form-floating>label {
  color: #cbd5e1;
  background: transparent;
  opacity: 1;
}

[data-theme="dark"] .modal .form-floating>.form-control:focus~label,
[data-theme="dark"] .modal .form-floating>.form-control:not(:placeholder-shown)~label,
[data-theme="dark"] .modal .form-floating>.form-select~label {
  color: #f8fafc;
}

[data-theme="dark"] .modal .form-floating>label::after {
  background-color: #1f2937;
  border-radius: 6px;
  inset: .42rem .35rem;
}

[data-theme="dark"] .modal .form-floating>.form-control:disabled~label::after,
[data-theme="dark"] .modal .form-floating>.form-select:disabled~label::after {
  background-color: #1f2937;
}

[data-theme="dark"] .booking-modal .form-control:disabled,
[data-theme="dark"] .booking-modal .form-select:disabled {
  background-color: #1f2937;
  color: #f8fafc;
  opacity: 1;
  -webkit-text-fill-color: #f8fafc;
}

[data-theme="dark"] .summary-tile,
[data-theme="dark"] .booking-details,
[data-theme="dark"] .alert-row {
  background: #111827;
  border-color: #374151;
  color: #f8fafc;
}

[data-theme="dark"] .summary-tile span,
[data-theme="dark"] .booking-details,
[data-theme="dark"] .booking-summary h3 {
  color: #cbd5e1;
}

[data-theme="dark"] .fc-theme-standard .fc-scrollgrid,
[data-theme="dark"] .fc-theme-standard td,
[data-theme="dark"] .fc-theme-standard th,
[data-theme="dark"] .fc .fc-list,
[data-theme="dark"] .fc .fc-list-table {
  background: #18181b;
  border-color: #34343b;
}

[data-theme="dark"] .fc .fc-daygrid-day,
[data-theme="dark"] .fc .fc-timegrid-slot,
[data-theme="dark"] .fc .fc-timegrid-axis,
[data-theme="dark"] .fc .fc-col-header-cell {
  background: #1b1b1f;
}

[data-theme="dark"] .fc .fc-daygrid-day:hover,
[data-theme="dark"] .fc .fc-timegrid-slot:hover,
[data-theme="dark"] .fc .fc-list-event:hover td {
  background: rgba(238, 20, 10, .16);
}

[data-theme="dark"] .fc-day-today {
  background: rgba(238, 20, 10, .12) !important;
}

[data-theme="dark"] .calendar-event-title,
[data-theme="dark"] .fc .fc-event-title,
[data-theme="dark"] .fc .fc-event-main {
  color: #ffffff !important;
}

.grid-span {
  grid-column: 1 / -1;
}

.sticky-actions {
  position: sticky;
  bottom: 0;
  background: var(--panel);
  z-index: 2;
}

.calendar-fallback {
  display: grid;
  grid-template-columns: repeat(7, minmax(120px, 1fr));
  gap: 10px;
}

.calendar-day {
  min-height: 130px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--body);
  padding: 10px;
}

.calendar-event {
  margin-top: 8px;
  padding: 8px;
  border-radius: 6px;
  background: var(--red);
  color: #fff;
  font-size: .8rem;
}

.analytics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.analytics-card {
  min-height: 340px;
}

.auth-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  gap: 16px;
  background:
    linear-gradient(135deg, rgba(214, 58, 51, .16), transparent 45%),
    radial-gradient(circle at bottom right, rgba(31, 41, 55, .14), transparent 36%),
    var(--body);
}

.auth-theme {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 10;
}

.auth-shell {
  width: min(1040px, 100%);
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.auth-side {
  background: var(--red);
  color: #fff;
  padding: 38px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
}

.auth-side h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
}

.auth-mark {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: #fff;
  color: var(--red);
}

.auth-card {
  box-shadow: none;
  border: 0;
  padding: 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-card h2 {
  font-weight: 800;
  margin-bottom: 8px;
}

.auth-card p {
  color: var(--muted);
}

.password-field {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  color: var(--muted);
}

.auth-footer {
  text-align: center;
  color: var(--muted);
  font-size: .86rem;
}

@media (max-width: 1199.98px) {
  .kpi-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 991.98px) {
  .sidebar {
    transform: translateX(-100%);
    width: 282px;
  }

  .sidebar.show {
    transform: translateX(0);
  }

  body.sidebar-collapsed .sidebar {
    width: 282px;
  }

  body.sidebar-collapsed .brand div,
  body.sidebar-collapsed .sidebar .nav-link span,
  body.sidebar-collapsed .logout span {
    display: block;
  }

  .content-shell,
  body.sidebar-collapsed .content-shell {
    margin-left: 0;
  }

  .kpi-grid,
  .summary-grid,
  .settings-grid,
  .report-grid,
  .quick-actions,
  .analytics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .auth-shell {
    grid-template-columns: 1fr;
  }

  .auth-side {
    display: none;
  }

  .auth-card .auth-logo {
    display: block !important;
    margin: 0 auto 24px auto !important;
    width: 80px !important;
    height: 80px !important;
    border-radius: 50% !important;
    object-fit: contain !important;
    background: var(--red) !important;
    border: 3px solid var(--red) !important;

  }

  .booking-layout {
    grid-template-columns: 1fr;
  }

  .booking-summary {
    position: static;
  }
}

@media (max-width: 767.98px) {
  .topbar {
    align-items: stretch;
    flex-wrap: wrap;
    padding: 12px 14px;
    position: sticky;
    top: 0;
  }

  .search-form {
    order: 3;
    flex-basis: 100%;
    max-width: none;
  }

  .main-content {
    padding: 18px 14px;
  }

  .page-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-head h1 {
    margin: 0;
    font-size: calc(0.975rem + .3vw) !important;
    font-weight: 800;
  }

  .breadcrumb {
    margin-bottom: 5px;
    font-size: .58rem;
  }

  .topbar-actions {
    gap: 6px;
  }

  .topbar-actions .btn span,
  .profile-copy {
    display: none;
  }

  .summary-grid,
  .settings-grid,
  .report-grid,
  .quick-grid,
  .quick-actions,
  .floating-grid,
  .analytics-grid {
    grid-template-columns: 1fr;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }

  .panel,
  .class-card,
  .auth-card {
    padding: 16px;
  }

  .kpi-card {
    min-height: auto;
    padding: 12px;
    text-align: center;
  }

  .kpi-card strong {
    font-size: 1.3rem;
    margin: 4px 0;
  }

  .kpi-card p {
    font-size: 0.75rem;
  }

  .kpi-icon {
    margin-bottom: 8px;
    width: 36px;
    height: 36px;
  }

  .panel-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .toolbar {
    width: 100%;
  }

  .toolbar>* {
    flex: 1 1 150px;
  }

  .calendar-toolbar .form-select,
  .calendar-toolbar .btn {
    max-width: none;
    flex: 1 1 100%;
  }

  .calendar-shell {
    min-height: 560px;
  }

  .fc {
    font-size: .86rem;
  }

  .fc .fc-toolbar {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
  }

  .fc .fc-toolbar-chunk {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
  }

  .booking-modal .modal-dialog {
    margin: 0;
    min-height: 100%;
    max-width: none;
  }

  .booking-modal .modal-content {
    min-height: 100vh;
    border-radius: 0;
  }

  .dt-container .row:last-child,
  .dt-layout-row:last-child {
    align-items: flex-start;
    flex-direction: column;
  }

  .dt-container .dt-paging,
  .dt-paging {
    margin-left: 0;
    justify-content: flex-start;
    width: 100%;
  }

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

  .auth-body {
    padding: 16px;
  }

  .auth-shell {
    margin: 46px 0 40px;
  }

  .dashboard-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .date-filter-group {
    width: 100%;
  }

  .dashboard-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .settings-card-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .settings-card-head .d-flex {
    width: 100%;
    justify-content: space-between;
  }

  /* DataTables v2 Mobile Overrides */
  .dt-container .dt-layout-row:first-child {
    display: flex !important;
    flex-direction: row !important;
    justify-content: space-between !important;
    align-items: center !important;
    margin-bottom: 12px !important;
    gap: 8px !important;
    width: 100% !important;
  }

  .dt-container .dt-layout-cell {
    width: auto !important;
    flex: unset !important;
    padding: 0 !important;
  }

  .dt-container .dt-length,
  .dt-container .dt-search {
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    margin: 0 !important;
  }

  .dt-container .dt-length label,
  .dt-container .dt-search label {
    margin: 0 !important;
    font-size: 0.8rem !important;
    color: var(--muted) !important;
    white-space: nowrap !important;
  }

  .dt-container .dt-input {
    font-size: 0.8rem !important;
    padding: 4px 8px !important;
    border-radius: 8px !important;
    height: 32px !important;
  }

  .dt-container .dt-search input {
    max-width: 130px !important;
  }

  .dt-container .dt-paging {
    display: flex !important;
    justify-content: flex-end !important;
    margin-top: 10px !important;
  }

  .dt-container .dt-info {
    text-align: right !important;
    font-size: 0.78rem !important;
    color: var(--muted) !important;
    margin-top: 6px !important;
  }

  /* Class Tabs Header Responsiveness on Mobile */
  .class-tabs-header {
    flex-wrap: wrap !important;
    padding: 12px 12px 0 !important;
    gap: 6px !important;
  }

  .class-tabs-btn {
    padding: 6px 10px !important;
    font-size: 0.8rem !important;
    border-radius: 6px !important;
    flex: 1 1 auto;
    justify-content: center;
  }

  /* Booking Calendar Mobile Layout (Student Panel only) */
  .student-profile #bookingCalendar .fc-toolbar {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    justify-content: space-between !important;
    align-items: center !important;
    gap: 8px !important;
  }

  .student-profile #bookingCalendar .fc-toolbar-chunk {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-start !important;
  }

  .student-profile #bookingCalendar .fc-toolbar-chunk:has(.fc-toolbar-title) {
    margin-left: auto !important;
  }

  .student-profile #bookingCalendar .fc-toolbar-title {
    text-align: right !important;
  }

  .student-profile .panel-head {
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
    flex-wrap: nowrap !important;
    gap: 8px !important;
  }

  .student-profile .panel-head h2 {
    font-size: 0.85rem !important;
    margin: 0 !important;
    white-space: nowrap !important;
  }

  .form-select-sm {
    font-size: .675rem !important;
  }

  .student-profile .panel-head label {
    font-size: .869rem !important;
  }

  .student-profile .table-responsive .table {
    min-width: 480px !important;
  }

  body[data-page="students"] .page-head .btn {
    font-size: 0.799rem !important;
  }

  body[data-page="teachers"] .page-head .btn,
  body[data-page="teachers"] .nav-tabs .nav-link,
  body[data-page="roles"] .nav-tabs .nav-link,
  body[data-page="classes"] .page-head .btn {
    font-size: 0.799rem !important;
  }

  .fc .fc-toolbar-title {
    font-size: 0.95rem !important;
  }

  /* Admin/Student Bookings Page Mobile Overrides */
  body[data-page="bookings"] .booking-layout {
    display: block !important;
    width: 100% !important;
    overflow: hidden !important;
  }

  body[data-page="bookings"] .booking-main,
  body[data-page="bookings"] .booking-summary {
    width: 100% !important;
    min-width: 0 !important;
    overflow: hidden !important;
  }

  body[data-page="bookings"] .calendar-shell {
    width: 100% !important;
    min-width: 0 !important;
    overflow-x: auto !important;
  }

  body[data-page="bookings"] .booking-tabs {
    flex-wrap: wrap !important;
    gap: 6px !important;
  }

  body[data-page="bookings"] .booking-tab-btn {
    padding: 6px 12px !important;
    font-size: 0.8rem !important;
  }

  body[data-page="bookings"] .alert-row {
    font-size: 0.8rem !important;
    padding: 10px !important;
  }

  /* Shrink calendar list view font sizes on mobile to prevent overflow */
  body[data-page="bookings"] .fc .fc-list-event-title,
  body[data-page="bookings"] .fc .fc-list-event-time,
  body[data-page="bookings"] .fc .fc-list-day-text,
  body[data-page="bookings"] .fc .fc-list-day-side-text {
    font-size: 0.68rem !important;
  }

  body[data-page="bookings"] .fc-list-table {
    width: 100% !important;
    table-layout: auto !important;
  }

  body[data-page="bookings"] .fc-theme-standard .fc-list {
    margin: 0 !important;
  }

  body[data-page="bookings"] .fc .fc-list-day-cushion,
  body[data-page="bookings"] .fc .fc-list-event-time {
    padding-left: 5px !important;
  }

  /* Summary Cards Responsive Sizing */
  .summary-card {
    padding: 12px !important;
  }

  .summary-card span {
    font-size: 0.78rem !important;
  }

  .summary-card strong {
    font-size: 1.25rem !important;
    margin: 4px 0 !important;
  }

  .summary-card i.fs-1,
  .summary-card i.fs-2 {
    font-size: 1.5rem !important;
  }
}

.executive-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.dashboard-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.date-filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1 1 auto;
}

.date-input-wrapper {
  position: relative;
  flex: 1;
  min-width: 130px;
}

.date-input-wrapper i {
  position: absolute;
  top: 50%;
  left: 14px;
  transform: translateY(-50%);
  opacity: .7;
  pointer-events: none;
}

.date-input-wrapper input {
  padding-left: 42px;
  height: 48px;
  border-radius: 14px;
  width: 100%;
}

.dashboard-actions .btn {
  height: 48px;
  border-radius: 14px;
  padding: 0 18px;
  font-weight: 600;
}

.business-head {
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.business-head h2 {
  margin-bottom: 0.4rem;
}

.business-head p {
  margin: 0;
  color: var(--text);

}

.page-tag {
  display: inline-flex;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(220, 53, 69, 0.1);
  color: #dc3545;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 0.9rem;
}

.rule-stat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 100%;
  color: var(--text);
}

.rule-stat-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(220, 53, 69, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #dc3545;
}

.rule-stat-card h3 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
}

.dropdown-item {
  font-weight: 500;
  color: var(--text-color);
  padding: .5rem 1rem;
}

[data-theme="dark"] .dropdown-item-text {
  color: #cbd5e1;
}

.rule-stat-card span {
  font-size: 0.88rem;
  color: var(--text);
}

.settings-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.4rem;
}

.settings-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.settings-card-head h3 {
  margin-bottom: 0.3rem;
  font-size: 1.05rem;
}

.settings-card-head p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text);
}

.settings-card-head i {
  font-size: 1.2rem;
  color: #dc3545;
}

.settings-card-head .btn i {
  color: inherit;
}

.rule-switch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  border-top: 1px solid var(--bs-border-color);
}

.rule-switch strong {
  display: block;
  font-size: 0.92rem;
}

.rule-switch span {
  font-size: 0.82rem;
  color: var(--text);
}

.course-rule-list {
  max-height: 260px;
  overflow-y: auto;
  padding-right: 6px;
}

.course-rule-list::-webkit-scrollbar {
  width: 6px;
}

.course-rule-list::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 999px;
}

.notification-switches .rule-switch:first-child {
  border-top: 0;
  padding-top: 0.2rem;
}

.calendar-event-title {
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 991.98px) {
  #sidebarCollapse {
    display: none !important;
  }
}




.modal-backdrop {
  opacity: .5 !important;
}

.modal {
  backdrop-filter: blur(3px);
}

.admin-form-modal .modal-dialog {
  max-height: calc(100vh - 2rem);
}

.admin-form-modal .modal-content {
  max-height: calc(100vh - 2rem);
  overflow: hidden;
}

.admin-form-modal .modal-scroll-form {
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 2rem);
  min-height: 0;
}

.admin-form-modal .modal-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
}

.admin-form-modal .modal-header,
.admin-form-modal .modal-footer {
  flex: 0 0 auto;
}

@media (max-width: 767.98px) {

  .modal-dialog {
    margin: 10px;
  }

  .modal-content {
    border-radius: 12px;
  }

  .modal-body {
    max-height: 70vh;
    overflow-y: auto;
  }

  .admin-form-modal .modal-dialog,
  .admin-form-modal .modal-content,
  .admin-form-modal .modal-scroll-form {
    max-height: calc(100vh - 20px);
  }
}

@media (max-width: 767.98px) {

  .dt-layout-row,
  .dt-container .row {
    flex-direction: column !important;
    gap: 12px;
  }

  .dt-search,
  .dt-length,
  .dt-info,
  .dt-paging {
    width: 100%;
  }

  .dt-paging {
    justify-content: center !important;
  }

  .dt-search input {
    width: 100% !important;
  }
}


.attendance-stat {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  background: var(--panel);
  text-align: center;
}

.attendance-stat span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.attendance-stat strong {
  font-size: 28px;
  display: block;
  margin-top: 6px;
}

.badge {
  padding: 7px 10px;
  font-size: 12px;
  border-radius: 999px;
}

.nav-tabs .nav-link {
  font-weight: 600;
}

.profile-cover {
  height: 180px;
  border-radius: 20px;
  background: var(--red-dark);
}

.profile-info {
  margin-top: -150px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 25px;
}

.profile-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid #fff;
}

.profile-content {
  flex: 1;
  color: #fff;
}

@media (max-width: 767.98px) {
  .profile-cover {
    height: 120px;
  }

  .profile-info {
    margin-top: -60px;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 15px;
    padding: 0 15px;
  }

  .profile-avatar {
    width: 100px;
    height: 100px;
    border-width: 4px;
  }

  .profile-content {
    color: var(--text);
    width: 100%;
  }

  .profile-content h2 {
    font-size: 1.4rem;
    margin-bottom: 5px;
  }

  .profile-content p {
    margin-bottom: 10px;
  }

  .profile-badges {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 5px;
  }

  .profile-info .btn {
    width: 100%;
  }
}

.feedback-card {
  padding: 20px;
  border: 1px solid var(--bs-border-color);
  border-radius: 12px;
  height: 100%;
}

.certificate-card {
  text-align: center;
  padding: 25px;
  border: 1px solid var(--bs-border-color);
  border-radius: 12px;
}

.certificate-card i {
  font-size: 40px;
  margin-bottom: 10px;
  display: block;
}

.teacher-thumb {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
}

.progress {
  height: 10px;
  border-radius: 20px;
}

.progress-bar {
  border-radius: 20px;
}

.certificate-card {
  text-align: center;
  padding: 24px;
  border: 1px solid var(--bs-border-color);
  border-radius: 16px;
}

.certificate-card i {
  font-size: 40px;
  margin-bottom: 10px;
  display: block;
}

.analytics-grid .panel {
  min-height: 400px;
  min-width: 0;
}

.analytics-grid canvas {
  max-height: 300px !important;
  max-width: 100% !important;
}

/* Teacher Dashboard Cards */
.feedback-card,
.certificate-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  box-shadow: 0 2px 8px var(--shadow);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.feedback-card p {
  flex: 1;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
  font-style: italic;
}

.certificate-card {
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.5rem;
  padding: 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.certificate-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--shadow);
  border-color: rgba(238, 20, 10, 0.3);
}

.certificate-card i {
  font-size: 2.25rem;
  color: var(--primary);
}

.certificate-card h6 {
  margin: 0;
  font-weight: 600;
  font-size: 1.05rem;
}

/* Scrollable Tabs Wrapper (Hides Scrollbars) */
.tabs-scroll::-webkit-scrollbar {
  display: none;
}

.tabs-scroll {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* FullCalendar List View Mobile Enhancements */
.fc-theme-standard .fc-list {
  border-radius: var(--radius);
  border-color: var(--line) !important;
  background: var(--panel) !important;
}

.fc .fc-list-day-cushion {
  background: var(--body) !important;
  padding: 10px 14px !important;
  border-bottom: 1px solid var(--line);
}

.fc .fc-list-day-text,
.fc .fc-list-day-side-text {
  font-weight: 600 !important;
  font-size: 0.9rem !important;
  color: var(--text) !important;
}

.fc .fc-list-event {
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.fc .fc-list-event:hover {
  background-color: rgba(238, 20, 10, 0.05) !important;
}

.fc .fc-list-event-time {
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  color: var(--muted) !important;
  padding: 10px 14px !important;
}

.fc .fc-list-event-title {
  padding: 10px 14px !important;
  font-size: 0.9rem !important;
}

.fc .fc-list-event-title a {
  color: var(--text) !important;
  text-decoration: none !important;
  font-weight: 500;
}

/* Dropdown Menu Global & Dark Mode Styling */
.dropdown-menu {
  background-color: var(--dropdown-bg) !important;
  border: 1px solid var(--line) !important;
  color: var(--text) !important;
}

.dropdown-item {
  color: var(--text) !important;
  background-color: transparent !important;
}

.dropdown-item:hover,
.dropdown-item:focus {
  background-color: var(--body) !important;
  color: var(--text) !important;
}

.dropdown-header {
  color: var(--muted) !important;
  font-weight: 600;
}

.dropdown-divider {
  border-top: 1px solid var(--line) !important;
  margin: 0.5rem 0 !important;
  opacity: 1 !important;
}

/* Notifications Dropdown Specifics */
#notificationList {
  max-height: 280px;
  overflow-y: auto;
}

@media (max-width: 575.98px) {
  #notificationDropdownMenu {
    width: calc(100vw - 32px) !important;
    max-width: 350px !important;
    position: fixed !important;
    top: 70px !important;
    left: 16px !important;
    right: 16px !important;
    transform: none !important;
    margin: 0 auto !important;
    z-index: 1050 !important;
  }
}

/* Notifications Page Rows */
.notification-row {
  transition: background-color 0.2s ease;
  border-bottom: 1px solid var(--line) !important;
}

.notification-row.unread {
  background-color: var(--panel) !important;
}

.notification-row.read {
  background-color: var(--body) !important;
  opacity: 0.75;
}

.notification-row.unread:hover {
  background-color: var(--table-stripe) !important;
}

/* Notification Icon Circles */
.icon-circle.unread {
  background-color: rgba(238, 20, 10, 0.15) !important;
  color: var(--red) !important;
}

.icon-circle.read {
  background-color: var(--line) !important;
  color: var(--muted) !important;
}

.notification-read-btn {
  background: rgba(238, 20, 10, 0.08);
  border: none;
  color: var(--red);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
}

.notification-read-btn:hover,
.notification-read-btn:focus-visible {
  background: var(--red);
  color: #fff;
  box-shadow: 0 10px 22px rgba(238, 20, 10, 0.24);
  transform: translateY(-1px);
}

.notification-read-btn:focus-visible {
  outline: 3px solid rgba(238, 20, 10, 0.24);
  outline-offset: 2px;
}

.notification-read-btn i {
  font-size: 1rem;
  line-height: 1;
}

/* Business Rules Mobile Action Buttons */
@media (max-width: 575.98px) {
  .rules-header-actions .btn {
    font-size: 0.85rem !important;
    padding: 8px 12px !important;
  }
}

/* Mobile Responsiveness for Notification Rows */
@media (max-width: 575.98px) {
  .notification-row {
    flex-wrap: wrap !important;
    align-items: flex-start !important;
  }

  .notification-row>span {
    width: calc(100% - 64px) !important;
    flex-grow: 1 !important;
  }

  .notification-row>.d-flex.flex-column {
    flex-direction: row !important;
    width: 100% !important;
    justify-content: flex-end !important;
    margin-left: 0 !important;
    margin-top: 10px !important;
    gap: 8px !important;
  }
}

/* Hide Caret Arrow on Notification Bell Dropdown Button */
#notificationBell::after {
  display: none !important;
}

/* Global Bootstrap Card Theme Overrides */
.card {
  background-color: var(--panel) !important;
  border-color: var(--line) !important;
  color: var(--text) !important;
}

/* Date Filter Group Stacking on Mobile Viewports */
@media (max-width: 575.98px) {
  .date-filter-group {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 8px !important;
  }

  .date-filter-group span {
    display: none !important;
    /* Hide "to" text on mobile */
  }

  .date-input-wrapper {
    min-width: 0 !important;
    width: 100% !important;
  }
}

/* Custom DataTables Responsive Control Icon */
table.dataTable.dtr-inline.collapsed>tbody>tr>td.dtr-control::before,
table.dataTable.dtr-inline.collapsed>tbody>tr>th.dtr-control::before {
  content: '+' !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: 18px !important;
  height: 18px !important;
  background-color: var(--red) !important;
  color: #ffffff !important;
  border: none !important;
  border-radius: 50% !important;
  margin-right: 8px !important;
  font-size: 16px !important;
  font-weight: bold !important;
  font-family: monospace !important;
  box-shadow: 0 2px 5px rgba(214, 58, 51, 0.4) !important;
  line-height: 1 !important;
  padding-bottom: 2px;
  /* Visual center adjustment */
}

table.dataTable.dtr-inline.collapsed>tbody>tr.parent>td.dtr-control::before,
table.dataTable.dtr-inline.collapsed>tbody>tr.parent>th.dtr-control::before {
  content: '-' !important;
  background-color: var(--text) !important;
  box-shadow: none !important;
}

/* Allow text wrapping inside DataTables responsive collapsed details */
table.dataTable>tbody>tr.child span.dtr-data {
  white-space: normal !important;
  word-break: break-word !important;
}

/* Scrollable tabs on mobile viewports */
@media (max-width: 767.98px) {
  .nav-tabs-scrollable {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    -webkit-overflow-scrolling: touch !important;
    padding-bottom: 5px;
  }

  .nav-tabs-scrollable .nav-item {
    flex: 0 0 auto !important;
  }

  .nav-tabs-scrollable::-webkit-scrollbar {
    display: none !important;
    /* Hide scrollbar for Chrome, Safari and Opera */
  }

  .nav-tabs-scrollable {
    -ms-overflow-style: none !important;
    /* IE and Edge */
    scrollbar-width: none !important;
    /* Firefox */
  }

  /* FullCalendar List View Responsive Stacking */
  .fc-theme-standard .fc-list-table {
    display: block !important;
    width: 100% !important;
  }

  .fc-theme-standard .fc-list-table tbody {
    display: block !important;
    width: 100% !important;
  }

  .fc-theme-standard .fc-list-day {
    display: block !important;
    width: 100% !important;
  }

  .fc-theme-standard .fc-list-day td,
  .fc-theme-standard .fc-list-day th {
    display: block !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .fc-theme-standard .fc-list-day-cushion {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .fc-theme-standard .fc-list-event {
    display: flex !important;
    flex-direction: column !important;
    width: 100% !important;
    padding: 10px 14px !important;
    border-bottom: 1px solid var(--line) !important;
    box-sizing: border-box !important;
  }

  .fc-theme-standard .fc-list-event td {
    display: block !important;
    width: 100% !important;
    padding: 2px 0 !important;
    border: none !important;
    background: transparent !important;
  }

  .fc-theme-standard .fc-list-event-graphic {
    display: none !important;
  }

  .fc-theme-standard .fc-list-event-time {
    padding: 0 !important;
    margin-bottom: 4px !important;
  }

  .fc-theme-standard .fc-list-event-title {
    padding: 0 !important;
  }

  /* Scrollable Tab buttons for Teacher Classes on mobile */
  .class-tabs-header {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    -webkit-overflow-scrolling: touch !important;
    padding: 12px 14px 0 !important;
    gap: 10px !important;
    border-bottom: 2px solid var(--border, #e5e7eb) !important;
    /* Hide scrollbar for IE, Edge and Firefox */
    -ms-overflow-style: none !important;
    scrollbar-width: none !important;
  }
  .class-tabs-header::-webkit-scrollbar {
    display: none !important;
  }
  .class-tabs-btn {
    flex: 0 0 auto !important;
    width: auto !important;
    border-radius: 8px 8px 0 0 !important;
    padding: 8px 18px !important;
    background: transparent !important;
    color: var(--muted, #6b7280) !important;
    margin-bottom: -2px !important;
    border-bottom: 2px solid transparent !important;
    justify-content: flex-start !important;
  }
  .class-tabs-btn.active {
    background: var(--primary, #ee140a) !important;
    color: #fff !important;
    border-bottom: 2px solid var(--primary, #ee140a) !important;
  }

  /* Add space between day name and date inside FullCalendar List View */
  .fc-list-day-side-text {
    margin-left: 8px !important;
  }
}

/* General tab buttons styling for Teacher Classes page */
.class-tabs-header {
  display: flex;
  gap: 10px;
  padding: 20px 20px 0;
  border-bottom: 2px solid var(--border, #e5e7eb);
}

.class-tabs-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border-radius: 8px 8px 0 0;
  border: none;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  background: transparent;
  color: var(--muted, #6b7280);
  margin-bottom: -2px;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.class-tabs-btn:hover {
  color: var(--primary, #ee140a);
}

.class-tabs-btn.active {
  background: var(--primary, #ee140a);
  color: #fff;
  border-bottom: 2px solid var(--primary, #ee140a);
}