/* UniMate Main Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Exo+2:ital,wght@0,100..900;1,100..900&display=swap');

/* Global: ensure [hidden] always works regardless of CSS display overrides */
[hidden] {
  display: none !important;
}

:root {
  --primary: #0ea5e9;
  --primary-contrast: #ffffff;
  --primary-hover: #0284c7;
  --bg: #f6f7fb;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --sb-margin: 0px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: 'Exo 2', -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Skip-to-content link (accessibility) */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 10000;
  padding: 12px 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 0 0 12px 12px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  transition: top 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.skip-to-content:focus {
  top: 0;
  outline: none;
}

/* Доступность: видимый фокус для клавиатурной навигации */
:focus-visible {
  outline: 3px solid rgba(14, 165, 233, 0.5);
  outline-offset: 2px;
}

button:focus-visible,
.icon-button:focus-visible,
.filter-btn:focus-visible,
.sb-nav:focus-visible,
.mobile-nav-item:focus-visible,
.tab-btn:focus-visible,
a:focus-visible {
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.35);
  border-color: rgba(14, 165, 233, 0.50);
  outline: none;
}

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 16px;
}

/* Layout with sidebar V10 — flush, no margin
   Expanded: sidebar 220px | Collapsed: sidebar 56px */
.layout-with-sidebar .main-wrapper {
  margin-left: 220px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

body.sidebar-collapsed.layout-with-sidebar .main-wrapper {
  margin-left: 56px;
}

@media(max-width: 768px) {
  .layout-with-sidebar .main-wrapper {
    margin-left: 0 !important;
  }
}

.main {
  flex: 1;
  padding-top: 24px;
  padding-bottom: 24px;
}

/* Страховка: страницы, где используется .content вместо .main */
.layout-with-sidebar .main-wrapper .content {
  flex: 1;
}



/* Mobile nav unread badge (blue) */
.mobile-chat-badge {
  display: none;
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  background: linear-gradient(135deg, #0ea5e9, #0284c7);
  color: #fff;
  font-size: 9px;
  font-weight: 800;
  line-height: 16px;
  text-align: center;
  pointer-events: none;
  box-shadow: 0 2px 6px rgba(14, 165, 233, 0.4);
  animation: badgePop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 2;
}

.mobile-chat-badge.visible {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Online/Offline presence indicator */
.presence-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--surface, #fff);
  background: #94a3b8;
  transition: background 0.3s ease, box-shadow 0.3s ease;
  flex-shrink: 0;
}

.presence-dot.online {
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.presence-dot.offline {
  background: #94a3b8;
}

.presence-indicator {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2.5px solid var(--surface, #fff);
  background: #94a3b8;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.presence-indicator.online {
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

.theme-dark .presence-dot {
  border-color: var(--surface);
}

.theme-dark .presence-indicator {
  border-color: var(--surface);
}

/* Progress section visible */
.group-hub {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.group-hub-card {
  border-radius: 20px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(248, 250, 252, 0.85));
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
}

.group-hub-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.group-hub-title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.2px;
}

.group-hub-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.group-hub-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  background: rgba(255, 255, 255, 0.9);
  color: #475569;
  font-weight: 700;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.group-hub-pill.pill-primary {
  background: rgba(37, 99, 235, 0.12);
  border-color: rgba(37, 99, 235, 0.28);
  color: #1d4ed8;
}

.group-hub-pill.pill-neutral {
  background: rgba(148, 163, 184, 0.14);
  border-color: rgba(148, 163, 184, 0.28);
  color: #475569;
}

.group-hub-tabs {
  padding-top: 6px;
}

.group-tabs {
  display: flex;
  gap: 8px;
  padding: 6px;
  border-radius: 16px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  background: rgba(148, 163, 184, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
  flex-wrap: wrap;
}

.group-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.9);
  color: #475569;
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.18s ease;
}

.group-tab-btn i {
  font-size: 14px;
}

.group-tab-btn:hover {
  background: rgba(14, 165, 233, 0.12);
  border-color: rgba(14, 165, 233, 0.3);
  color: #0284c7;
}

.group-tab-btn.active {
  background: rgba(14, 165, 233, 0.18);
  border-color: rgba(14, 165, 233, 0.45);
  color: #0284c7;
  box-shadow: 0 8px 16px rgba(14, 165, 233, 0.2);
}

.group-tab-panels {
  width: 100%;
}

.group-tab-panel {
  display: none;
}

.group-tab-panel.active {
  display: block;
  animation: groupTabFade 0.18s ease;
}

.group-tab-panels-spaced {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.group-section-card {
  border-radius: 20px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  background: #ffffff;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.08);
  overflow: hidden;
}

.group-section-card .card-header {
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 252, 0.9));
}

.group-section-card .card-title {
  font-size: 18px;
  font-weight: 800;
}

.group-hub-header-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.group-info-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(224, 242, 254, 0.4);
  border: 1px solid rgba(56, 189, 248, 0.2);
  margin-bottom: 20px;
  color: #0369a1;
}

.group-info-banner i {
  font-size: 18px;
  color: #0284c7;
}

.group-info-label {
  font-weight: 700;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #0284c7;
}

.group-info-value {
  font-weight: 700;
  font-size: 14px;
  color: #0c4a6e;
}

.group-section-card .card-body {
  padding-top: 16px;
}

.group-students-card .group-stats {
  margin-top: 8px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.group-students-card .stat-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  background: rgba(14, 165, 233, 0.08);
  color: #1e293b;
  font-weight: 700;
  font-size: 12px;
}

.group-catalog-card .group-row {
  border-radius: 16px;
  border: 1px solid rgba(226, 232, 240, 0.8);
  background: #ffffff;
  padding: 12px 14px;
  margin-bottom: 10px;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.group-catalog-card .group-row:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(14, 165, 233, 0.12);
}

.group-catalog-card .group-code {
  font-weight: 800;
  font-size: 15px;
}

.group-catalog-card .group-spec {
  color: #64748b;
  font-size: 12.5px;
}

.group-attendance-card .attendance-controls {
  background: rgba(148, 163, 184, 0.08);
  border-radius: 16px;
  padding: 10px 12px;
  border: 1px solid rgba(226, 232, 240, 0.9);
}

.group-attendance-card .attendance-list {
  border-radius: 16px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  overflow: hidden;
}

.group-attendance-card .list-header {
  background: rgba(248, 250, 252, 0.95);
  border-bottom: 1px solid rgba(226, 232, 240, 0.9);
}

.group-birthdays-card .bday-card {
  border-radius: 16px;
  border: 1px solid rgba(226, 232, 240, 0.85);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
}

@keyframes groupTabFade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

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

/* Header — Unified Glass (matches sidebar + footer radius) */
.header {
  position: sticky;
  top: 12px;
  margin: 12px 20px 16px;
  background: linear-gradient(135deg, rgba(255,255,255,0.78), rgba(248,250,252,0.62));
  border: 1px solid rgba(226,232,240,0.5);
  border-radius: 16px;
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
  box-shadow:
    0 4px 20px rgba(15,23,42,0.06),
    0 1px 4px rgba(15,23,42,0.03);
  z-index: 1102;
  transition: margin 0.3s cubic-bezier(0.16,1,0.3,1), box-shadow 0.3s ease, background 0.3s ease;
}

.header .header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  gap: 12px;
}

.header .header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}

.header .header-title {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}

.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.32);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 252, 0.9));
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(12px) saturate(150%);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.header-search:hover {
  border-color: rgba(14, 165, 233, 0.32);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.1);
}

.header-search:focus-within {
  border-color: rgba(14, 165, 233, 0.6);
  box-shadow: 0 14px 32px rgba(14, 165, 233, 0.2);
  transform: translateY(-1px);
}

.header-search-icon {
  color: #94a3b8;
  font-size: 15px;
}

.header-search-input {
  border: none;
  background: transparent;
  outline: none;
  min-width: 220px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: .1px;
}

.header-search-input::placeholder {
  color: #94a3b8;
}

.header-search-btn {
  border: none;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.18), rgba(2, 132, 199, 0.22));
  color: #0284c7;
  width: 30px;
  height: 30px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  box-shadow: inset 0 0 0 1px rgba(14, 165, 233, 0.2);
}

.header-search-btn:hover {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.26), rgba(2, 132, 199, 0.28));
  box-shadow: 0 6px 14px rgba(14, 165, 233, 0.18);
}

.header-search-btn:active {
  transform: translateY(1px);
}

.header-search-results {
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  width: min(520px, 100%);
  min-width: 360px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.94));
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.16);
  padding: 8px;
  display: none;
  z-index: 1200;
}

.header-search-results.open {
  display: block;
}

.header-search-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
}

.header-search-group+.header-search-group {
  border-top: 1px dashed rgba(226, 232, 240, 0.8);
  margin-top: 6px;
  padding-top: 10px;
}

.header-search-group-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: #94a3b8;
  padding: 2px 6px;
}

.header-search-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 12px;
  color: #0f172a;
  text-decoration: none;
  border: 1px solid rgba(226, 232, 240, 0.6);
  background: rgba(255, 255, 255, 0.75);
  transition: background .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.header-search-item i {
  font-size: 16px;
  color: #64748b;
  width: 18px;
  text-align: center;
}

.header-search-item span {
  font-weight: 600;
}

.header-search-item:hover,
.header-search-item.active {
  background: rgba(14, 165, 233, 0.12);
  border-color: rgba(14, 165, 233, 0.35);
  box-shadow: 0 8px 18px rgba(14, 165, 233, 0.16);
}

.header-search-kbd {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 800;
  color: #475569;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(226, 232, 240, 0.75));
  border-radius: 7px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08), inset 0 -1px 0 rgba(148, 163, 184, 0.35);
  letter-spacing: 0.08em;
}

.header-search-kbd:empty {
  display: none;
}

.header-search-item[data-shortcut="1"] .header-search-kbd {
  color: #1d4ed8;
  border-color: rgba(37, 99, 235, 0.45);
  background: linear-gradient(180deg, rgba(219, 234, 254, 0.95), rgba(191, 219, 254, 0.7));
}

.header-search-item[data-shortcut="2"] .header-search-kbd {
  color: #7c3aed;
  border-color: rgba(124, 58, 237, 0.45);
  background: linear-gradient(180deg, rgba(237, 233, 254, 0.95), rgba(221, 214, 254, 0.7));
}

.header-search-item[data-shortcut="3"] .header-search-kbd {
  color: #0f766e;
  border-color: rgba(13, 148, 136, 0.45);
  background: linear-gradient(180deg, rgba(204, 251, 241, 0.95), rgba(153, 246, 228, 0.7));
}

.header-search-item[data-shortcut="4"] .header-search-kbd {
  color: #b45309;
  border-color: rgba(217, 119, 6, 0.45);
  background: linear-gradient(180deg, rgba(254, 243, 199, 0.95), rgba(253, 230, 138, 0.7));
}

.header-search-item[data-shortcut="5"] .header-search-kbd {
  color: #be123c;
  border-color: rgba(225, 29, 72, 0.45);
  background: linear-gradient(180deg, rgba(255, 228, 230, 0.95), rgba(254, 205, 211, 0.7));
}

.header-search-item[data-shortcut="6"] .header-search-kbd {
  color: #1e40af;
  border-color: rgba(30, 64, 175, 0.45);
  background: linear-gradient(180deg, rgba(224, 231, 255, 0.95), rgba(199, 210, 254, 0.7));
}

.header-search-item[data-shortcut="7"] .header-search-kbd {
  color: #166534;
  border-color: rgba(34, 197, 94, 0.45);
  background: linear-gradient(180deg, rgba(220, 252, 231, 0.95), rgba(187, 247, 208, 0.7));
}

.header-search-item[data-shortcut="8"] .header-search-kbd {
  color: #0f172a;
  border-color: rgba(71, 85, 105, 0.45);
  background: linear-gradient(180deg, rgba(241, 245, 249, 0.98), rgba(226, 232, 240, 0.75));
}

.header-search-item[data-shortcut="9"] .header-search-kbd {
  color: #1d4ed8;
  border-color: rgba(37, 99, 235, 0.45);
  background: linear-gradient(180deg, rgba(219, 234, 254, 0.95), rgba(191, 219, 254, 0.7));
}

.header-search-empty {
  display: none;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(148, 163, 184, 0.12);
  color: #64748b;
  font-weight: 600;
  text-align: center;
}

.user-dropdown-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 18px 44px rgba(2, 6, 23, 0.14);
  width: 340px;
  overflow: hidden;
  transform-origin: top right;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95) translateY(-8px);
  transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1), transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.2s;
  pointer-events: none;
}

.user-dropdown-menu::before {
  content: '';
  position: absolute;
  right: 16px;
  top: -8px;
  border: 8px solid transparent;
  border-bottom-color: var(--border);
  opacity: .7;
}

.user-dropdown-menu::after {
  content: '';
  position: absolute;
  right: 16px;
  top: -7px;
  border: 8px solid transparent;
  border-bottom-color: var(--surface);
}

.footer-extra {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(226, 232, 240, 0.6);
  margin-top: 12px;
}

.footer-note {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.05);
}

.footer-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.footer-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 14px;
  background: var(--primary);
  color: var(--primary-contrast);
  font-weight: 700;
  border: 1px solid rgba(14, 165, 233, 0.4);
  box-shadow: 0 10px 18px rgba(14, 165, 233, 0.22);
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.footer-cta-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 22px rgba(14, 165, 233, 0.28);
  filter: brightness(1.03);
  background: var(--primary-hover);
}

.footer-cta-btn i {
  font-size: 16px;
  --fa-primary-color: #ffffff;
  --fa-secondary-color: rgba(255, 255, 255, 0.75);
}

.sb-nav:hover i.fa-duotone,
.sb-nav.active i.fa-duotone {
  --fa-primary-color: #0284c7;
  --fa-secondary-color: #0ea5e9;
}
.theme-dark .sb-nav:hover i.fa-duotone,
.theme-dark .sb-nav.active i.fa-duotone {
  --fa-primary-color: #7dd3fc;
  --fa-secondary-color: #38bdf8;
}

/* Dark theme: page-specific containers and controls */
/* Убрано: тяжёлые стили для .page-header в тёмной теме по запросу пользователя */

/* Dark theme: generic form controls (exclude special inputs) */
.theme-dark input[type="text"],
.theme-dark input[type="email"],
.theme-dark input[type="password"],
.theme-dark input[type="number"],
.theme-dark input[type="date"],
.theme-dark input[type="datetime-local"],
.theme-dark input[type="month"],
.theme-dark input[type="time"],
.theme-dark input[type="week"],
.theme-dark input[type="search"],
.theme-dark input[type="tel"],
.theme-dark input[type="url"],
.theme-dark select,
.theme-dark textarea,
.theme-dark .form-select,
.theme-dark .form-input,
.theme-dark .form-control {
  background-color: transparent !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
  color-scheme: dark;
  -webkit-text-fill-color: var(--text);
}

/* Remove extra background on input text in dark mode (autofill & mark) */
.theme-dark input[type="text"]:-webkit-autofill,
.theme-dark input[type="email"]:-webkit-autofill,
.theme-dark input[type="password"]:-webkit-autofill,
.theme-dark input[type="number"]:-webkit-autofill,
.theme-dark input[type="date"]:-webkit-autofill,
.theme-dark input[type="datetime-local"]:-webkit-autofill,
.theme-dark input[type="month"]:-webkit-autofill,
.theme-dark input[type="time"]:-webkit-autofill,
.theme-dark input[type="week"]:-webkit-autofill,
.theme-dark input[type="search"]:-webkit-autofill,
.theme-dark input[type="tel"]:-webkit-autofill,
.theme-dark input[type="url"]:-webkit-autofill,
.theme-dark textarea:-webkit-autofill,
.theme-dark select:-webkit-autofill {
  -webkit-box-shadow: 0 0 0 1000px var(--surface) inset !important;
  -webkit-text-fill-color: var(--text) !important;
  background-color: var(--surface) !important;
  transition: background-color 5000s ease-in-out 0s;
}

.theme-dark input[type="text"]::selection,
.theme-dark input[type="email"]::selection,
.theme-dark input[type="password"]::selection,
.theme-dark input[type="number"]::selection,
.theme-dark input[type="date"]::selection,
.theme-dark input[type="datetime-local"]::selection,
.theme-dark input[type="month"]::selection,
.theme-dark input[type="time"]::selection,
.theme-dark input[type="week"]::selection,
.theme-dark input[type="search"]::selection,
.theme-dark input[type="tel"]::selection,
.theme-dark input[type="url"]::selection,
.theme-dark textarea::selection {
  background: rgba(14, 165, 233, 0.3);
  color: var(--text);
}

.theme-dark input[type="text"] mark,
.theme-dark input[type="email"] mark,
.theme-dark input[type="password"] mark,
.theme-dark input[type="number"] mark,
.theme-dark input[type="date"] mark,
.theme-dark input[type="datetime-local"] mark,
.theme-dark input[type="month"] mark,
.theme-dark input[type="time"] mark,
.theme-dark input[type="week"] mark,
.theme-dark input[type="search"] mark,
.theme-dark input[type="tel"] mark,
.theme-dark input[type="url"] mark,
.theme-dark textarea mark {
  background: transparent;
  color: inherit;
}

/* Fix for iOS date inputs in dark mode */
.theme-dark input[type="date"],
.theme-dark input[type="datetime-local"],
.theme-dark input[type="time"] {
  -webkit-appearance: none;
  appearance: none;
  min-height: 44px;
  /* Ensure touch target size */
}

.theme-dark input[type="text"]::placeholder,
.theme-dark input[type="email"]::placeholder,
.theme-dark input[type="password"]::placeholder,
.theme-dark input[type="number"]::placeholder,
.theme-dark input[type="date"]::placeholder,
.theme-dark input[type="datetime-local"]::placeholder,
.theme-dark input[type="month"]::placeholder,
.theme-dark input[type="time"]::placeholder,
.theme-dark input[type="week"]::placeholder,
.theme-dark input[type="search"]::placeholder,
.theme-dark input[type="tel"]::placeholder,
.theme-dark input[type="url"]::placeholder,
.theme-dark textarea::placeholder {
  color: var(--muted);
}

/* Subjects page */
.theme-dark .subjects-page h3 {
  color: var(--text);
}

.theme-dark .subjects-toolbar .group-hint {
  color: var(--muted);
}

.theme-dark .subjects-toolbar .search-wrap {
  background: rgba(2, 6, 23, 0.35);
  border-color: var(--border);
}

.theme-dark .subjects-toolbar .search-wrap:focus-within {
  border-color: rgba(14, 165, 233, 0.45);
  box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.12);
  background: rgba(2, 6, 23, 0.45);
}

.theme-dark .subjects-toolbar .search-input {
  color: var(--text);
}

.theme-dark .subjects-toolbar .input-select {
  background-color: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.theme-dark .chip i.fa-duotone {
  --fa-primary-color: #93c5fd;
  --fa-secondary-color: #2563eb;
  --fa-primary-opacity: 1;
  --fa-secondary-opacity: 0.9;
}

.theme-dark .subject-card {
  background: linear-gradient(180deg, rgba(2, 6, 23, 0.70), rgba(2, 6, 23, 0.45));
  border: 1px solid rgba(147, 197, 253, 0.25);
  box-shadow: 0 2px 8px rgba(2, 6, 23, 0.45);
}

.theme-dark .subject-card:hover {
  border-color: rgba(14, 165, 233, 0.35);
  box-shadow: 0 8px 24px rgba(2, 6, 23, 0.55);
}

.theme-dark .subject-card .subject-icon {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.08) 0%, rgba(56, 189, 248, 0.14) 100%);
  color: var(--primary);
  border: 1px solid rgba(56, 189, 248, 0.28);
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.08);
}

.theme-dark .subject-card .subject-title {
  color: var(--text);
}

.theme-dark .subject-card .subject-meta {
  color: var(--muted);
}

/* Materials page */
.theme-dark .materials-page .page-subtitle {
  color: var(--muted);
}

.theme-dark .materials-toolbar .form-select,
.theme-dark .materials-toolbar .search-wrap {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

.theme-dark .materials-toolbar .search-wrap .count {
  color: var(--muted);
}

.theme-dark .upload-section {
  background: #0b1220;
  border-color: rgba(148, 163, 184, 0.40);
}

.theme-dark .upload-section label.file-input {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

.theme-dark .upload-section .status {
  color: var(--muted);
}

.theme-dark .materials-tree .folder {
  background: var(--surface);
  border-color: var(--border);
}

.theme-dark .materials-tree .folder-header {
  background: rgba(2, 6, 23, 0.35);
}

.theme-dark .materials-tree .file-item {
  background: var(--surface);
  border-color: var(--border);
}

.theme-dark .materials-tree .file-open {
  color: var(--text);
}

.theme-dark .materials-tree .file-meta {
  color: var(--muted);
}

.theme-dark .modal .modal-dialog {
  background: var(--surface-elevated, var(--surface));
  border: 1px solid var(--border-strong, rgba(148, 163, 184, 0.15));
}

.theme-dark .preview-download {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

/* Global dark override for page titles */
.theme-dark .page-title {
  color: var(--text);
}

/* Subject page */
.theme-dark .subject-hero {
  background: linear-gradient(90deg, #0b1220 0%, #0f172a 100%);
  border: 1px solid #1f2937;
}

.theme-dark .subject-hero .subject-icon {
  background: rgba(14, 165, 233, 0.12);
  color: var(--primary);
}

.theme-dark .subject-hero .subject-info .subtitle {
  color: var(--muted);
}

.theme-dark .syllabus-item {
  background: var(--surface);
  border-color: var(--border);
}

.theme-dark .file-name {
  color: var(--text);
}

.theme-dark .file-badge {
  background: #0b1220;
  color: #cbd5e1;
}

.theme-dark .file-badge.badge-pdf {
  background: #1f2937;
  color: #fca5a5;
}

.theme-dark .file-badge.badge-docx,
.theme-dark .file-badge.badge-doc {
  background: #1f2937;
  color: #93c5fd;
}

.theme-dark .file-badge.badge-xlsx {
  background: #1f2937;
  color: #86efac;
}

.theme-dark .file-badge.badge-pptx {
  background: #1f2937;
  color: #fdba74;
}

/* Static pages */
.theme-dark .static-page {
  background: linear-gradient(135deg, #0b1220 0%, #0f172a 100%);
}

.theme-dark .static-content {
  background: rgba(2, 6, 23, 0.92);
  border: 1px solid rgba(2, 6, 23, 0.6);
  color: var(--text);
}

.theme-dark .static-title {
  color: var(--text);
}

.theme-dark .static-subtitle {
  color: var(--muted);
}

.theme-dark .back-link {
  background: rgba(2, 6, 23, 0.65);
  border: 2px solid var(--border);
  color: #94a3b8;
}

/* GPA page */
.theme-dark .gpa-page .whatif-header h4 {
  color: var(--text);
}

.theme-dark .weak-subject-item {
  background: rgba(2, 6, 23, 0.70);
  border-color: var(--border);
}

.theme-dark .weak-subject-item .weak-meta {
  color: #9aa9bb;
}

/* === Global Theme Toggle (light/dark) === */
/* Compact icon button used in header */
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: rgba(0, 0, 0, 0.02);
  color: var(--text);
  cursor: pointer;
  transition: all 0.18s ease;
  position: relative;
}

.icon-button:hover {
  background: rgba(0, 0, 0, 0.04);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}

.icon-button:active {
  transform: translateY(0) scale(0.95);
}

.icon-button i {
  font-size: 17px;
}

/* Bell button — blue accent */
#openNotificationsModal {
  background: rgba(14, 165, 233, 0.06);
  border-color: rgba(14, 165, 233, 0.12);
  color: #0ea5e9;
}

#openNotificationsModal:hover {
  background: rgba(14, 165, 233, 0.1);
  border-color: rgba(14, 165, 233, 0.18);
}

.theme-dark #openNotificationsModal {
  background: rgba(14, 165, 233, 0.1);
  border-color: rgba(14, 165, 233, 0.15);
  color: #38bdf8;
}

/* Theme toggle — amber / indigo */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  margin-right: 4px;
  background: rgba(245, 158, 11, 0.06);
  border-color: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
}

.theme-toggle:hover {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.18);
}

.theme-dark .theme-toggle {
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.12);
  color: #818cf8;
}

.theme-dark .theme-toggle:hover {
  background: rgba(99, 102, 241, 0.14);
}

.theme-dark .icon-button {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.06);
}

.theme-dark .icon-button:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* Header notification badge */
.header-notif-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
  pointer-events: none;
  transform: scale(0);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 2;
  box-shadow: 0 2px 6px rgba(239, 68, 68, 0.3);
}

.header-notif-badge.visible {
  transform: scale(1);
}

.header-notif-badge.pulse {
  animation: header-badge-pulse 1.5s ease-in-out 3;
}

@keyframes header-badge-pulse {

  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5);
  }

  50% {
    box-shadow: 0 0 0 5px rgba(239, 68, 68, 0);
  }
}

/* Dark theme variables and key component overrides */
.theme-dark {
  color-scheme: dark;
  --primary: #38bdf8;
  --primary-contrast: #ffffff;
  --primary-hover: #0ea5e9;
  --bg: #0a0e1a;
  /* deep navy page background */
  --surface: #111827;
  /* cards, menus — slightly lighter */
  --surface-elevated: #1a2332;
  /* elevated cards, popovers */
  --text: #f1f5f9;
  /* brighter default text */
  --muted: #94a3b8;
  /* muted text */
  --border: rgba(148, 163, 184, 0.12);
  /* subtle translucent borders */
  --border-strong: rgba(148, 163, 184, 0.22);
  --sidebar-bg: #0a0e1a;
  --sidebar-text: #cbd5e1;
  --sidebar-active-bg: #1e293b;
  --glow-primary: rgba(96, 165, 250, 0.08);
  --glow-accent: rgba(139, 92, 246, 0.06);
}

.theme-dark body {
  background: var(--bg);
  color: var(--text);
}

.theme-dark .main-wrapper {
  background: linear-gradient(180deg, var(--bg) 0%, #0d1321 50%, var(--bg) 100%);
}

/* Header — dark theme (unified with sidebar + footer) */
.theme-dark .header {
  background: linear-gradient(135deg, rgba(15,23,42,0.75), rgba(10,14,26,0.7));
  border-color: rgba(148,163,184,0.08);
  box-shadow:
    0 4px 20px rgba(0,0,0,0.2),
    0 1px 4px rgba(0,0,0,0.1);
}

.theme-dark .header-search {
  background: linear-gradient(135deg, rgba(2, 6, 23, 0.92), rgba(15, 23, 42, 0.85));
  border-color: rgba(14, 165, 233, 0.2);
  box-shadow: 0 12px 28px rgba(2, 6, 23, 0.5), inset 0 0 0 1px rgba(148, 163, 184, 0.08);
}

.theme-dark .header-search:focus-within {
  border-color: rgba(14, 165, 233, 0.55);
  box-shadow: 0 14px 32px rgba(14, 165, 233, 0.24), inset 0 0 0 1px rgba(14, 165, 233, 0.32);
}

.theme-dark .header-search-icon {
  color: #94a3b8;
}

.theme-dark .header-search-input {
  color: #e5e7eb;
}

.theme-dark .header-search-input::placeholder {
  color: #64748b;
}

.theme-dark .header-search-btn {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.28), rgba(2, 132, 199, 0.3));
  color: #bae6fd;
  box-shadow: inset 0 0 0 1px rgba(14, 165, 233, 0.3);
}

.theme-dark .header-search-btn:hover {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.36), rgba(2, 132, 199, 0.4));
  box-shadow: 0 8px 16px rgba(14, 165, 233, 0.22);
}

.theme-dark .header-search-results {
  background: linear-gradient(180deg, rgba(2, 6, 23, 0.98), rgba(15, 23, 42, 0.95));
  border-color: rgba(14, 165, 233, 0.2);
  box-shadow: 0 26px 64px rgba(2, 6, 23, 0.55);
}

.theme-dark .header-search-group+.header-search-group {
  border-top-color: rgba(148, 163, 184, 0.16);
}

.theme-dark .header-search-group-title {
  color: #64748b;
}

.theme-dark .header-search-item {
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.7);
  border-color: rgba(148, 163, 184, 0.12);
}

.theme-dark .header-search-item i {
  color: #94a3b8;
}

.theme-dark .header-search-item:hover,
.theme-dark .header-search-item.active {
  background: rgba(14, 165, 233, 0.22);
  border-color: rgba(14, 165, 233, 0.35);
  box-shadow: 0 10px 20px rgba(2, 6, 23, 0.4);
}

.theme-dark .header-search-kbd {
  color: #e2e8f0;
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.98), rgba(15, 23, 42, 0.86));
  border-color: rgba(148, 163, 184, 0.25);
  box-shadow: 0 1px 2px rgba(2, 6, 23, 0.35), inset 0 -1px 0 rgba(148, 163, 184, 0.22);
}

.theme-dark .header-search-empty {
  background: rgba(148, 163, 184, 0.12);
  color: #94a3b8;
}

.theme-dark .header .btn.btn-premium {
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.24);
}

/* Footer V3 dark theme — handled inline in the footer CSS block below */

/* Sidebar V6 — styles handled in sidebar.php inline <style> */

/* Cards & dropdowns */
.theme-dark .card {
  background: var(--surface);
  border-color: var(--border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(148, 163, 184, 0.04);
}

.theme-dark .card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(148, 163, 184, 0.06);
}

.theme-dark .card-header {
  background: linear-gradient(180deg, rgba(148, 163, 184, 0.04) 0%, transparent 100%);
  border-color: var(--border);
}

.theme-dark .user-dropdown-menu {
  background: var(--surface-elevated, var(--surface));
  border-color: var(--border-strong);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(148, 163, 184, 0.06);
}

.theme-dark .dropdown-row {
  color: #cbd5e1;
}

.theme-dark .status-pill {
  background: #1f2937;
  color: #e5e7eb;
}

/* Buttons & filters */
.theme-dark .btn-outline {
  color: var(--text);
  border-color: var(--border);
}

.theme-dark .filter-btn {
  background: #1f2937;
  border-color: var(--border);
  color: #cbd5e1;
}

.theme-dark .filter-btn.active,
.theme-dark .filter-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* Small elements: badges, chips, pills, tags, lightweight buttons */
.theme-dark .badge {
  background: rgba(17, 24, 39, 0.55);
  color: var(--text);
  border: 1px solid var(--border);
}

.theme-dark .badge-light {
  background: rgba(17, 24, 39, 0.40);
  color: #cbd5e1;
  border-color: var(--border);
}

.theme-dark .tag,
.theme-dark .pill {
  background: rgba(2, 6, 23, 0.45);
  color: var(--text);
  border: 1px solid var(--border);
}

.theme-dark .btn-light {
  background: #1f2937;
  color: var(--text);
  border: 1px solid var(--border);
}

.theme-dark .btn-light:hover {
  background: #223046;
}

.theme-dark .chip {
  background: rgba(2, 6, 23, 0.35);
  color: #cbd5e1;
  border: 1px solid rgba(147, 197, 253, 0.25);
}

.theme-dark .chip .chip-close {
  color: #9aa9bb;
}

.theme-dark .chip .chip-close:hover {
  color: #ffffff;
  background: rgba(148, 163, 184, 0.18);
}

/* Dropdowns */
.theme-dark .dropdown-menu,
.theme-dark .user-dropdown-menu {
  background: var(--surface-elevated, var(--surface));
  border: 1px solid var(--border-strong);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(148, 163, 184, 0.05);
  color: var(--text);
}

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

.theme-dark .dropdown-item:hover {
  background: rgba(96, 165, 250, 0.08);
}

.theme-dark .dropdown-header {
  background: rgba(148, 163, 184, 0.04);
  border-bottom: 1px solid var(--border);
}

/* Tables (admin, etc.) */
.theme-dark .users-table,
.theme-dark .premium-table,
.theme-dark .deadlines-table {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(2, 6, 23, .35);
}

.theme-dark .users-table th,
.theme-dark .premium-table th,
.theme-dark .deadlines-table th {
  background: #0b1220;
  color: var(--text);
}

.theme-dark .users-table td,
.theme-dark .premium-table td,
.theme-dark .deadlines-table td {
  color: var(--text);
  border-bottom-color: var(--border);
}

.theme-dark .users-table tbody tr:nth-child(odd),
.theme-dark .premium-table tbody tr:nth-child(odd),
.theme-dark .deadlines-table tbody tr:nth-child(odd) {
  background: rgba(17, 24, 39, 0.40);
}

/* Modal styles → full styles in um-modal.css; critical show/hide here so modals always work */
.modal,
.modal-overlay {
  position: fixed;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  box-sizing: border-box;
  transition: opacity .2s ease, visibility .2s ease;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal.hidden,
.modal-overlay.hidden {
  display: none !important;
}

.modal.active,
.modal[aria-hidden="false"],
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.modal.active .modal-content,
.modal.active>.modal-dialog>.modal-content,
.modal-overlay.active>.modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.modal .modal-dialog,
.modal-content,
.modal-overlay>.modal {
  max-width: 520px;
  width: 100%;
  background: var(--surface, #fff);
  border-radius: 14px;
  border: 1px solid var(--border, #e2e8f0);
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.16), 0 4px 12px rgba(15, 23, 42, 0.06);
  overflow: hidden;
  transition: transform .25s cubic-bezier(0.16, 1, 0.3, 1), opacity .2s ease;
}

.modal:not(.active) .modal-content,
.modal-overlay:not(.active)>.modal {
  transform: translateY(8px) scale(0.97);
  opacity: 0;
}

/* Close button styles moved to /assets/css/um-modal.css */

/* Leader Badge in Comments/General */
.badge.badge-leader {
  background-color: #dbeafe;
  color: #1e40af;
  border: 1px solid #0ea5e9;
}

/* Global Form Styles */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #ffffff;
  /* Fallback */
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: all 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

/* Global select & option styling */
select {
  padding: 8px 36px 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border, #e2e8f0);
  background-color: var(--surface, #fff);
  color: var(--text, #0f172a);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

select:hover {
  border-color: rgba(99, 102, 241, 0.4);
}

select:focus {
  outline: none;
  border-color: var(--primary, #6366f1);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

select option {
  padding: 8px 12px;
  background: var(--surface, #fff);
  color: var(--text, #0f172a);
}

.theme-dark select {
  background-color: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.theme-dark select:hover {
  border-color: rgba(99, 102, 241, 0.5);
}

.theme-dark select:focus {
  border-color: rgba(99, 102, 241, 0.6);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
}

.theme-dark select option {
  background: var(--surface, #1e293b);
  color: var(--text, #e2e8f0);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--muted);
}

/* Dark theme modal styles moved to /assets/css/um-modal.css */

/* Alerts/Notices/Toasts (light theme base) */
.alert {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(248, 250, 252, 0.75);
  color: #0f172a;
  box-shadow: 0 8px 24px rgba(2, 6, 23, 0.08);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  gap: 10px;
}

.alert i {
  font-size: 18px;
}

.alert a.alert-link {
  font-weight: 600;
  color: var(--primary);
}

.alert-success {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.35);
  color: #065f46;
}

.alert-info {
  background: rgba(14, 165, 233, 0.12);
  border-color: rgba(14, 165, 233, 0.35);
  color: #0284c7;
}

.alert-warning {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.35);
  color: #92400e;
}

.alert-danger {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.35);
  color: #7f1d1d;
}

/* Alerts/Notices/Toasts */
.theme-dark .alert {
  background: rgba(2, 6, 23, 0.55);
  color: var(--text);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.theme-dark .alert-danger {
  background: rgba(239, 68, 68, 0.16);
  border-color: rgba(239, 68, 68, 0.35);
  color: #fecaca;
}

.theme-dark .alert-success {
  background: rgba(22, 163, 74, 0.16);
  border-color: rgba(34, 197, 94, 0.35);
  color: #d1fae5;
}

.theme-dark .alert-info {
  background: rgba(14, 165, 233, 0.16);
  border-color: rgba(14, 165, 233, 0.35);
  color: #bae6fd;
}

.theme-dark .notice {
  background: rgba(17, 24, 39, 0.55);
  border: 1px solid var(--border);
  color: var(--text);
}

.theme-dark .toast {
  background: #111827;
  color: #fff;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.28);
}

/* Focus page targeted badge-light override to beat page specificity */
.theme-dark .focus-page .page-header .badge-light {
  background: rgba(17, 24, 39, 0.40);
  color: #cbd5e1;
  border-color: var(--border);
}

/* Premium badge: remove heavy blur in dark theme */
.theme-dark .badge-premium {
  background: rgba(17, 24, 39, 0.55);
  color: var(--text);
  border: 1px solid var(--border);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* Tooltips */
.theme-dark [data-tooltip]::after {
  background: #111827;
  color: #ffffff;
}

.theme-dark [data-tooltip]::before {
  border-top-color: #111827;
}

.theme-dark [data-tooltip][data-tooltip-pos="bottom"]::before {
  border-bottom-color: #111827;
}

/* Mobile nav duotone icon palette — styles in /assets/css/mobile.css */
/* Premium badge & button refinements */
.header .badge-premium {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(240, 249, 255, 0.85), rgba(224, 242, 254, 0.70));
  border: 1px solid rgba(147, 197, 253, 0.75);
  color: #0f172a;
  font-weight: 600;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.10);
}

.header .badge-premium i.fa-duotone {
  --fa-primary-color: #2563eb;
  /* blue-600 */
  --fa-secondary-color: #60a5fa;
  /* sky-400 */
  --fa-primary-opacity: 1;
  --fa-secondary-opacity: .95;
}

.header .btn.btn-premium {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: linear-gradient(180deg, #2563eb, #60a5fa);
  color: #fff;
  border: 1px solid rgba(147, 197, 253, 0.75);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.18);
}

.header .btn.btn-premium i.fa-duotone {
  --fa-primary-color: #ffffff;
  --fa-secondary-color: #e2e8f0;
  --fa-primary-opacity: 1;
  --fa-secondary-opacity: .9;
}

.header .header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.header .header-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 12px;
  font-weight: 600;
}

.badge-premium {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(8px);
  color: #111827;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  background: var(--primary);
  color: var(--primary-contrast);
  font-weight: 600;
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  background: rgba(0, 0, 0, 0.05);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgba(0, 0, 0, 0.05);
}

.theme-dark .btn-secondary:hover,
.theme-dark .btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
}

.btn-primary {
  background: linear-gradient(135deg, #0ea5e9, #38bdf8);
  color: #fff;
  border: none;
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0284c7, #0ea5e9);
  box-shadow: 0 6px 20px rgba(14, 165, 233, 0.3);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 6px 10px;
  font-size: 14px;
}

.btn-premium {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: var(--primary-contrast);
}

.user-dropdown {
  position: relative;
}

.user-avatar-wrapper {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  position: relative;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
}

.user-avatar-initials {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #e2e8f0;
  color: #334155;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.user-avatar-frame {
  display: inline-flex;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  overflow: hidden;
}

.user-avatar-frame .user-avatar {
  border: 0;
}

.premium-badge {
  position: absolute;
  right: -6px;
  bottom: -6px;
  background: #f59e0b;
  color: #111;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  border: 2px solid #fff;
}

.dropdown-arrow {
  color: #94a3b8;
  font-size: 14px;
}

.avatar-frame-gold {
  position: relative;
  border-radius: 50%;
  box-shadow:
    0 0 0 1px rgba(251, 191, 36, 0.55),
    0 0 0 3px rgba(245, 158, 11, 0.28),
    0 12px 28px rgba(245, 158, 11, 0.30);
  transform: translateZ(0);
}

.avatar-frame-gold::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(135deg, #fff7cc 0%, #fde68a 18%, #f59e0b 45%, #d97706 70%, #fff7cc 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.avatar-frame-gold::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(115deg, transparent 0%, rgba(255, 255, 255, 0.75) 42%, transparent 60%);
  background-size: 200% 100%;
  opacity: 0.75;
  animation: goldFrameShine 2.6s linear infinite;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.header .user-avatar-frame.avatar-frame-gold {
  box-shadow:
    0 0 0 1px rgba(251, 191, 36, 0.50),
    0 6px 14px rgba(245, 158, 11, 0.22);
}

.header .user-avatar-frame.avatar-frame-gold::before,
.header .user-avatar-frame.avatar-frame-gold::after {
  padding: 2px;
}

.dropdown-avatar-frame.avatar-frame-gold {
  box-shadow:
    0 0 0 1px rgba(251, 191, 36, 0.55),
    0 10px 24px rgba(245, 158, 11, 0.25);
}

@keyframes goldFrameShine {
  0% {
    background-position: -120% 50%;
  }

  100% {
    background-position: 120% 50%;
  }
}

.avatar-frame-neon {
  position: relative;
  border-radius: 50%;
  box-shadow:
    0 0 0 1px rgba(34, 197, 94, 0.55),
    0 0 18px rgba(34, 197, 94, 0.35),
    0 12px 26px rgba(2, 6, 23, 0.10);
  transform: translateZ(0);
}

.avatar-frame-neon::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(135deg, #22c55e 0%, #06b6d4 45%, #a855f7 100%);
  opacity: 0.95;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 1;
}

.avatar-frame-neon::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(115deg, transparent 0%, rgba(255, 255, 255, 0.70) 42%, transparent 60%);
  background-size: 200% 100%;
  opacity: 0.55;
  animation: neonFrameShine 2.2s linear infinite;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 2;
}

.avatar-frame-neon>img,
.avatar-frame-neon>span,
.avatar-frame-neon>.user-avatar,
.avatar-frame-neon>.avatar-img,
.avatar-frame-neon>.user-avatar-initials,
.avatar-frame-neon>.avatar-initials {
  position: relative;
  z-index: 0;
}

.header .user-avatar-frame.avatar-frame-neon {
  box-shadow:
    0 0 0 1px rgba(34, 197, 94, 0.52),
    0 0 12px rgba(34, 197, 94, 0.30),
    0 8px 16px rgba(2, 6, 23, 0.08);
}

.header .user-avatar-frame.avatar-frame-neon::before,
.header .user-avatar-frame.avatar-frame-neon::after {
  padding: 2px;
}

.dropdown-avatar-frame.avatar-frame-neon {
  box-shadow:
    0 0 0 1px rgba(34, 197, 94, 0.55),
    0 0 18px rgba(34, 197, 94, 0.32),
    0 10px 24px rgba(2, 6, 23, 0.10);
}

@keyframes neonFrameShine {
  0% {
    background-position: -120% 50%;
  }

  100% {
    background-position: 120% 50%;
  }
}

.nickname-rainbow {
  background: linear-gradient(90deg, #ef4444, #f97316, #eab308, #22c55e, #3b82f6, #8b5cf6, #ec4899, #ef4444);
  background-size: 600% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: nicknameRainbow 6s linear infinite;
}

@keyframes nicknameRainbow {
  0% {
    background-position: 0% 50%;
  }

  100% {
    background-position: 600% 50%;
  }
}

.premium-badge-inline {
  position: static;
  background: transparent;
  border: none;
  width: auto;
  height: auto;
  color: #f59e0b;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.premium-badge-inline i {
  font-size: 16px;
}

.user-dropdown-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: 300px;
  overflow: hidden;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
  transform-origin: top right;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95) translateY(-8px);
  transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1), transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.2s;
  pointer-events: none;
}

.user-dropdown-menu.open,
.user-dropdown.open .user-dropdown-menu,
.user-avatar-wrapper.active+.user-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

.um-dropdown-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px;
}

.um-identity {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.um-identity-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.um-avatar .avatar-img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
}

.um-avatar .avatar-initials {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #e2e8f0;
  color: #334155;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.um-avatar .dropdown-avatar-frame {
  display: inline-flex;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  overflow: hidden;
}

.um-name {
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: .1px;
  color: #0f172a;
}

.um-sub {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 11.5px;
  color: #64748b;
}

.um-role {
  font-weight: 600;
}

.um-student-id {
  color: #94a3b8;
}

.um-status-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border-radius: 10px;
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  color: #1e3a8a;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
}

.um-section {
  background: #f8fafc;
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 12px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.um-section-title {
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #94a3b8;
  font-weight: 700;
}

.um-lumes-amount {
  font-size: 24px;
  font-weight: 800;
  color: #0f172a;
}

.um-lumes-sub {
  font-size: 11.5px;
  color: #64748b;
}

.um-progress {
  width: 100%;
  height: 3px;
  background: rgba(148, 163, 184, 0.25);
  border-radius: 999px;
  overflow: hidden;
}

.um-progress span {
  display: block;
  height: 100%;
  background: #60a5fa;
  border-radius: 999px;
}

.um-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.um-row-label {
  font-size: 12.5px;
  font-weight: 600;
  color: #334155;
}

.um-lang-row {
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.um-lang-picker {
  position: relative;
  width: 100%;
}

.um-lang-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  background: #ffffff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 12.5px;
  font-weight: 600;
  color: #0f172a;
  box-shadow: 0 6px 12px rgba(15, 23, 42, 0.06);
  cursor: pointer;
  transition: border-color .18s ease, box-shadow .18s ease;
}

.um-lang-trigger:hover {
  border-color: rgba(14, 165, 233, 0.35);
  box-shadow: 0 8px 18px rgba(14, 165, 233, 0.12);
}

.um-lang-chevron {
  margin-left: auto;
  font-size: 10px;
  color: #64748b;
  transition: transform .2s ease;
}

.um-lang-picker.open .um-lang-chevron {
  transform: rotate(180deg);
}

.um-lang-flag {
  width: 17px;
  height: 17px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.um-lang-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 50;
  background: #fff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
  padding: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity .18s ease, visibility .18s ease, transform .18s ease;
  max-height: 360px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(148, 163, 184, .3) transparent;
}

.um-lang-dropdown::-webkit-scrollbar {
  width: 4px;
}

.um-lang-dropdown::-webkit-scrollbar-track {
  background: transparent;
}

.um-lang-dropdown::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, .3);
  border-radius: 4px;
}

.um-lang-picker.open .um-lang-dropdown,
.um-lang-dropdown[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.um-lang-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  color: #334155;
  text-decoration: none;
  transition: background .15s ease;
}

.um-lang-option:hover {
  background: rgba(14, 165, 233, 0.06);
}

.um-lang-option.active {
  background: rgba(14, 165, 233, 0.08);
  color: #0284c7;
}

.um-lang-check {
  margin-left: auto;
  font-size: 11px;
  color: #0ea5e9;
}

.um-hint {
  font-size: 10.5px;
  color: #94a3b8;
}

.um-xp-section {
  padding: 10px 14px !important;
}

.um-xp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.um-xp-level-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px 3px 7px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(14, 165, 233, 0.12));
  font-size: 12.5px;
  font-weight: 700;
  color: #7c3aed;
}

.um-xp-level-badge i {
  font-size: 14px;
  --fa-primary-color: #7c3aed;
  --fa-secondary-color: #a78bfa;
}

.um-xp-streak {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 700;
  color: #f59e0b;
}

.um-xp-streak i {
  font-size: 14px;
  --fa-primary-color: #f59e0b;
  --fa-secondary-color: #fbbf24;
}

.um-xp-mult {
  font-size: 10px;
  font-weight: 800;
  color: #ffffff;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  padding: 1px 5px;
  border-radius: 6px;
}

.um-xp-bar {
  width: 100%;
  height: 6px;
  background: rgba(148, 163, 184, 0.2);
  border-radius: 999px;
  overflow: hidden;
}

.um-xp-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #7c3aed, #0ea5e9);
  transition: width .6s cubic-bezier(.4, 0, .2, 1);
}

.um-xp-sub {
  font-size: 11px;
  color: #64748b;
  margin-top: 4px;
  text-align: right;
}

.theme-dark .um-xp-level-badge {
  background: rgba(139, 92, 246, 0.18);
  color: #a78bfa;
}

.theme-dark .um-xp-level-badge i {
  --fa-primary-color: #a78bfa;
  --fa-secondary-color: #c4b5fd;
}

.theme-dark .um-xp-bar {
  background: rgba(148, 163, 184, 0.12);
}

.theme-dark .um-xp-sub {
  color: #94a3b8;
}

.um-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.um-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 12px;
  background: linear-gradient(135deg, #0ea5e9, #38bdf8);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid rgba(14, 165, 233, 0.35);
  box-shadow: 0 10px 18px rgba(14, 165, 233, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.35);
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.um-primary:hover {
  filter: brightness(1.05);
  box-shadow: 0 14px 28px rgba(14, 165, 233, 0.32);
  transform: translateY(-1px);
}

.um-primary i {
  font-size: 16px;
  --fa-primary-color: #ffffff;
  --fa-secondary-color: rgba(255, 255, 255, 0.75);
}

.um-action-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.um-action-tile {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 9px 0;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  color: #0f172a;
  text-decoration: none;
  transition: all .18s ease;
}

.um-action-tile i {
  font-size: 19px;
  --fa-primary-color: #2563eb;
  --fa-secondary-color: #93c5fd;
}

.um-action-tile:hover {
  background: #f0f9ff;
  border-color: rgba(14, 165, 233, 0.28);
  color: #0284c7;
}

.um-action-tile:hover i {
  --fa-primary-color: #1d4ed8;
  --fa-secondary-color: #60a5fa;
}

.um-logout {
  color: #ef4444;
}

.um-logout i {
  --fa-primary-color: #ef4444;
  --fa-secondary-color: #fca5a5;
}

.um-logout:hover {
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.3);
  color: #dc2626;
}

.um-logout:hover i {
  --fa-primary-color: #dc2626;
  --fa-secondary-color: #f87171;
}

.um-switch .notif-slider {
  background-color: rgba(148, 163, 184, 0.5);
}

.um-switch input:checked+.notif-slider {
  background-color: #0ea5e9;
}

.um-switch .notif-slider:before {
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.15);
}

.theme-dark .user-dropdown-menu {
  background: var(--surface-elevated, #1a2332);
  border-color: var(--border-strong);
}

.theme-dark .um-dropdown-card {
  color: var(--text);
}

.theme-dark .um-section {
  background: rgba(148, 163, 184, 0.05);
  border-color: var(--border);
  color: var(--text);
}

.theme-dark .um-name {
  color: var(--text);
}

.theme-dark .um-lumes-amount {
  color: var(--text);
}

.theme-dark .um-row-label {
  color: #cbd5e1;
}

.theme-dark .um-action-tile {
  background: rgba(148, 163, 184, 0.06);
  border-color: var(--border);
  color: var(--text);
}

.theme-dark .um-action-tile:hover {
  background: rgba(96, 165, 250, 0.1);
  border-color: rgba(96, 165, 250, 0.2);
}

.theme-dark .um-status-pill {
  background: rgba(96, 165, 250, 0.12);
  border-color: rgba(96, 165, 250, 0.2);
  color: #93c5fd;
}

.theme-dark .um-lang-trigger {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.theme-dark .um-lang-dropdown {
  background: var(--surface);
  border-color: var(--border);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.theme-dark .um-lang-option {
  color: var(--text);
}

.theme-dark .um-lang-option:hover {
  background: rgba(14, 165, 233, 0.1);
}

.theme-dark .um-lang-option.active {
  background: rgba(14, 165, 233, 0.12);
  color: #38bdf8;
}

/* ═══════════════════════════════════════════════════════════
   FOOTER V3 — Minimal single-row bar
   No navigation duplication, just brand + legal + Telegram
   ═══════════════════════════════════════════════════════════ */
.um-footer {
  margin: 32px 20px 10px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(248,250,252,0.8), rgba(241,245,249,0.7));
  border: 1px solid rgba(226,232,240,0.5);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  transition: background .3s ease, border-color .3s ease;
}
.um-footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 14px 24px;
}
.um-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.um-footer-copy {
  font-size: 12px;
  color: #94a3b8;
  font-weight: 500;
  white-space: nowrap;
}
.um-footer-links {
  display: flex;
  align-items: center;
  gap: 16px;
}
.um-footer-links a {
  font-size: 12px;
  font-weight: 500;
  color: #64748b;
  text-decoration: none;
  transition: color .15s ease;
}
.um-footer-links a:hover {
  color: #0ea5e9;
}
.um-footer-tg {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: #0ea5e9;
  text-decoration: none;
  padding: 5px 12px;
  border-radius: 8px;
  background: rgba(14,165,233,0.08);
  border: 1px solid rgba(14,165,233,0.15);
  transition: all .18s ease;
}
.um-footer-tg:hover {
  background: rgba(14,165,233,0.14);
  border-color: rgba(14,165,233,0.3);
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(14,165,233,0.12);
}
.um-footer-tg i { font-size: 14px; }

/* Dark theme */
.theme-dark .um-footer {
  background: linear-gradient(135deg, rgba(15,23,42,0.7), rgba(10,14,26,0.65));
  border-color: rgba(148,163,184,0.08);
}
.theme-dark .um-footer-copy { color: #475569; }
.theme-dark .um-footer-links a { color: #64748b; }
.theme-dark .um-footer-links a:hover { color: #38bdf8; }
.theme-dark .um-footer-tg {
  color: #38bdf8;
  background: rgba(56,189,248,0.1);
  border-color: rgba(56,189,248,0.15);
}
.theme-dark .um-footer-tg:hover {
  background: rgba(56,189,248,0.16);
  border-color: rgba(56,189,248,0.3);
}

@media (max-width: 600px) {
  .um-footer { margin: 16px 10px 6px; border-radius: 14px; }
  .um-footer-inner { padding: 12px 16px; }
  .um-footer-row { gap: 10px; }
}

/* Mobile bottom nav — styles in /assets/css/mobile.css */

/* Cards and common components */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(2, 6, 23, 0.04);
  overflow: hidden;
  transition: box-shadow 0.18s ease, border-color 0.18s ease;
}

.card:hover {
  box-shadow: 0 8px 28px rgba(14, 165, 233, 0.06);
  border-color: rgba(14, 165, 233, 0.12);
}

.card-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #f8fafc, #ffffff);
}

.card-title {
  margin: 0;
  font-size: 18px;
}

.card-body {
  padding: 16px;
}

.page-title {
  margin: 0 0 12px 0;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 16px 0;
}

.page-header-content {
  flex: 1;
  min-width: 0;
}

.page-header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

.page-subtitle {
  font-size: 14px;
  color: var(--muted);
  margin: 2px 0 0;
}

/* Reusable Hero Block (partials/hero.php) */
.page-hero {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: linear-gradient(135deg, #f0f9ff, #e0f2fe, #f0f9ff);
  border-radius: 20px;
  border: 1px solid rgba(14, 165, 233, 0.12);
  margin-bottom: 20px;
  box-shadow: 0 4px 20px rgba(14, 165, 233, 0.06);
}

.page-hero-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  color: var(--primary);
}

.page-hero-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 0.25rem;
}

.page-hero-subtitle {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 480px;
  margin: 0 auto;
}

.page-hero-stats {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.hero-stat-value {
  font-weight: 700;
  color: var(--text);
}

.page-hero-actions {
  margin-top: 1rem;
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Filters */
.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 12px;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: #334155;
  cursor: pointer;
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.detail-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #eef2ff;
  color: #3730a3;
  padding: 6px 10px;
  border-radius: 10px;
  font-weight: 600;
}

/* CSS-only tooltips via [data-tooltip] to avoid freezing */
@media (hover: hover) {
  [data-tooltip] {
    position: relative;
  }

  [data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 100%;
    margin-bottom: 8px;
    background: #111827;
    color: #fff;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    z-index: 1102;
    transition: opacity .15s ease;
    box-shadow: 0 6px 16px rgba(2, 6, 23, .18);
  }

  [data-tooltip]::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: calc(100% - 2px);
    width: 0;
    height: 0;
    border: 6px solid transparent;
    border-top-color: #111827;
    opacity: 0;
    pointer-events: none;
    z-index: 1102;
    transition: opacity .15s ease;
  }

  [data-tooltip]:hover::after,
  [data-tooltip]:hover::before {
    opacity: 1;
  }

  /* Bottom-positioned tooltip variant to avoid clipping by .card overflow */
  [data-tooltip][data-tooltip-pos="bottom"]::after {
    bottom: auto;
    top: 100%;
    margin-top: 8px;
    margin-bottom: 0;
  }

  [data-tooltip][data-tooltip-pos="bottom"]::before {
    bottom: auto;
    top: calc(100% - 2px);
    border-top-color: transparent;
    border-bottom-color: #111827;
  }
}

/* Responsive */

/* Custom Cursor disabled: revert to native cursor */

/* Duotone icon colors for sidebar V7 */
.sb-nav i.fa-duotone {
  --fa-primary-color: #64748b;
  --fa-secondary-color: #94a3b8;
  --fa-primary-opacity: 1;
  --fa-secondary-opacity: 0.70;
}
.theme-dark .sb-nav i.fa-duotone {
  --fa-primary-color: #94a3b8;
  --fa-secondary-color: #64748b;
}

/* Mobile footer & safe-area — styles in /assets/css/mobile.css */
/* Lumes page styles and animations */
.lumes-page {
  padding-bottom: 28px;
}

.lumes-hero {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border-radius: 12px;
  background: linear-gradient(135deg, #f0f6ff, #e9f0ff);
  border: 1px solid #e4ecff;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
  margin-bottom: 18px;
}

.lumes-logo {
  width: 56px;
  height: 56px;
}

.lumes-hero-text h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.2;
}

.lumes-subtitle {
  margin-top: 4px;
  color: #5b6b87;
}

.lumes-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}

.lumes-card {
  background: #fff;
  border: 1px solid #e5eaf5;
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
}

.balance-card .balance-amount {
  font-size: 32px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.balance-card .balance-desc {
  color: #667085;
}

.info-title {
  font-weight: 600;
  margin-bottom: 6px;
}

.info-text {
  color: #475467;
}

.lumes-history {
  margin-top: 8px;
}

.lumes-history h2 {
  margin: 0 0 12px;
}

.lumes-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.lumes-table thead th {
  font-weight: 600;
  color: #344054;
  background: #f8fafc;
  border-bottom: 1px solid #e5eaf5;
}

.lumes-table th,
.lumes-table td {
  border-bottom: 1px solid #eef2f7;
  padding: 12px 10px;
  text-align: left;
}

.lumes-kind {
  font-weight: 600;
  color: #475467;
}

.amount-pos {
  color: #0a7b0a;
  font-weight: 600;
}

.amount-neg {
  color: #b00020;
  font-weight: 600;
}

/* Billing styles moved to /assets/css/pages/lumes.css */

/* Balance pulse animation */
@keyframes balancePulse {
  0% {
    transform: scale(1);
    background-color: transparent;
  }

  20% {
    transform: scale(1.05);
    background-color: rgba(226, 247, 255, 0.8);
  }

  100% {
    transform: scale(1);
    background-color: transparent;
  }
}

.balance-amount.pulse {
  animation: balancePulse 800ms ease;
  border-radius: 8px;
}

/* Filters UI */
.lumes-filters {
  display: flex;
  gap: 12px;
  align-items: end;
  margin: 12px 0 14px;
  flex-wrap: wrap;
}

/* Lumes — dark theme overrides */
.theme-dark .lumes-hero {
  background: linear-gradient(135deg, rgba(17, 24, 39, 0.85), rgba(2, 6, 23, 0.65));
  border-color: var(--border);
}

.theme-dark .lumes-subtitle {
  color: var(--muted);
}

.theme-dark .lumes-card {
  background: var(--surface);
  border-color: var(--border);
}

.theme-dark .info-text {
  color: var(--muted);
}

.theme-dark .lumes-table thead th {
  background: #0b1220;
  color: var(--text);
  border-bottom-color: var(--border);
}

.theme-dark .lumes-table th,
.theme-dark .lumes-table td {
  border-bottom-color: var(--border);
  color: var(--text);
}

.theme-dark .amount-pos {
  color: #86efac;
}

.theme-dark .amount-neg {
  color: #fca5a5;
}

.filter-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.filter-item label {
  font-size: 12px;
  color: #667085;
}

.filter-item select,
.filter-item input[type="date"] {
  height: 36px;
  padding: 6px 8px;
  border: 1px solid #e5eaf5;
  border-radius: 8px;
  background: #fff;
  color: #344054;
}

/* Dark theme fix: date inputs/selects in Lumes filters should not be white */
.theme-dark .lumes-page .filter-item input[type="date"],
.theme-dark .lumes-page .filter-item select {
  background: var(--surface) !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
  color-scheme: dark;
}

.user-dropdown-menu.open {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

.user-dropdown-menu {
  z-index: 10010;
}

/* =========================================
   Styles moved from header.php
   ========================================= */
/* Глобально отключаем горизонтальную прокрутку */
html,
body {
  overflow-x: hidden;
}

/* Переключатель (switch) для уведомлений */
.notif-switch {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 20px;
}

.notif-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.notif-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #d1d5db;
  transition: .18s;
  border-radius: 20px;
}

.notif-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 2px;
  bottom: 2px;
  background-color: #fff;
  transition: .18s;
  border-radius: 50%;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.notif-switch input:checked+.notif-slider {
  background-color: #2563eb;
}

.notif-switch input:checked+.notif-slider:before {
  transform: translateX(18px);
}

.notif-switch.disabled .notif-slider {
  opacity: .6;
  pointer-events: none;
}

.status-pill {
  padding: 2px 8px;
  border-radius: 12px;
  background: #f3f4f6;
  font-size: 11px;
  color: #111827;
}

/* Премиум бэйдж — светлая/тёмная тема (Overrides) */
.badge-premium {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #fff7ed;
  color: #9a3412;
  border: 1px solid #f59e0b;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.18);
}

.badge-premium i.fa-duotone {
  --fa-primary-color: #f59e0b;
  --fa-secondary-color: #fef3c7;
  --fa-secondary-opacity: .85;
}

.theme-dark .badge-premium {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border-color: #f59e0b;
  box-shadow: none;
}

.theme-dark .badge-premium i.fa-duotone {
  --fa-primary-color: #fbbf24;
  --fa-secondary-color: #78350f;
  --fa-secondary-opacity: .65;
}

.btn-premium {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid #f59e0b;
  color: #9a3412;
  background: #fff7ed;
}

.btn-premium:hover {
  background: #fffbeb;
}

.theme-dark .btn-premium {
  color: #fbbf24;
  border-color: #f59e0b;
  background: rgba(245, 158, 11, 0.12);
}

.theme-dark .btn-premium:hover {
  background: rgba(245, 158, 11, 0.18);
}

.footer-cta-btn.btn-premium {
  background: var(--primary);
  color: var(--primary-contrast);
  border-color: rgba(14, 165, 233, 0.4);
  box-shadow: 0 10px 18px rgba(14, 165, 233, 0.22);
}

.footer-cta-btn.btn-premium:hover {
  background: var(--primary-hover);
  box-shadow: 0 14px 22px rgba(14, 165, 233, 0.28);
}

.theme-dark .footer-cta-btn.btn-premium {
  background: var(--primary);
  color: var(--primary-contrast);
  border-color: rgba(14, 165, 233, 0.5);
  box-shadow: 0 12px 20px rgba(14, 165, 233, 0.3);
}

.theme-dark .footer-cta-btn.btn-premium:hover {
  box-shadow: 0 16px 26px rgba(14, 165, 233, 0.36);
}

/* =========================================
   Confirm Modal (footer.php)
   ========================================= */
.um-confirm-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1300;
}

.um-confirm-modal[hidden] {
  display: none;
}

.um-confirm-modal.active {
  display: flex;
}

.um-confirm-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.theme-dark .um-confirm-backdrop {
  background: rgba(2, 6, 23, 0.7);
}

.um-confirm-dialog {
  position: relative;
  z-index: 1001;
  width: 92%;
  max-width: 400px;
  background: var(--surface, #fff);
  border-radius: 16px;
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.18), 0 4px 12px rgba(15, 23, 42, 0.06);
  border: 1px solid var(--border, #e2e8f0);
  color: var(--text);
  transform: translateY(8px) scale(0.97);
  opacity: 0;
  transition: transform .22s cubic-bezier(0.16, 1, 0.3, 1), opacity .18s ease;
  overflow: hidden;
}

.um-confirm-modal.active .um-confirm-dialog {
  transform: none;
  opacity: 1;
}

.theme-dark .um-confirm-dialog {
  background: var(--surface-elevated, var(--surface, #1e293b));
  border-color: var(--border-strong, rgba(148, 163, 184, 0.15));
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5), 0 8px 20px rgba(0, 0, 0, 0.2);
}

.um-confirm-title {
  font-weight: 700;
  font-size: 16px;
  padding: 20px 20px 0;
  color: var(--text);
  border-bottom: none;
  background: transparent;
  letter-spacing: -0.02em;
}

.um-confirm-body {
  padding: 8px 20px 20px;
  color: var(--muted, #64748b);
  font-size: 14px;
  line-height: 1.55;
}

.um-confirm-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  padding: 14px 20px;
  border-top: 1px solid var(--border, #e2e8f0);
  background: transparent;
}

.um-confirm-actions .btn {
  min-width: 0;
  padding: 9px 20px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  line-height: 1;
}

.um-confirm-actions .btn-secondary,
.um-confirm-actions .btn-outline {
  background: var(--surface, #fff);
  color: var(--text, #0f172a);
  border: 1px solid var(--border, #e2e8f0);
}

.um-confirm-actions .btn-secondary:hover,
.um-confirm-actions .btn-outline:hover {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.12);
}

.um-confirm-actions .btn-danger {
  background: #ef4444;
  border: 1px solid #ef4444;
  color: #fff;
  box-shadow: 0 1px 3px rgba(239, 68, 68, 0.25);
}

.um-confirm-actions .btn-danger:hover {
  background: #dc2626;
  border-color: #dc2626;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.um-confirm-actions .btn-danger:active {
  transform: scale(0.97);
}

.um-confirm-actions .btn-primary {
  background: var(--primary, #0ea5e9);
  border: 1px solid var(--primary, #0ea5e9);
  color: #fff;
  box-shadow: 0 1px 3px rgba(14, 165, 233, 0.2);
}

.um-confirm-actions .btn-primary:hover {
  background: var(--primary-hover, #0284c7);
  border-color: var(--primary-hover, #0284c7);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.25);
}

.theme-dark .um-confirm-title {
  color: var(--text, #e2e8f0);
}

.theme-dark .um-confirm-body {
  color: var(--muted, #94a3b8);
}

.theme-dark .um-confirm-actions {
  border-top-color: var(--border, rgba(148, 163, 184, 0.12));
  background: transparent;
}

.theme-dark .um-confirm-actions .btn-secondary,
.theme-dark .um-confirm-actions .btn-outline {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border, rgba(148, 163, 184, 0.15));
  color: var(--text, #e2e8f0);
}

.theme-dark .um-confirm-actions .btn-secondary:hover,
.theme-dark .um-confirm-actions .btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(148, 163, 184, 0.25);
}

.um-confirm-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: transparent;
  color: var(--muted, #94a3b8);
  border: 1px solid var(--border, #e2e8f0);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
  transition: all 0.15s ease;
}

.um-confirm-close:hover {
  background: rgba(239, 68, 68, 0.08);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.25);
  transform: rotate(90deg);
}

.theme-dark .um-confirm-close {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(148, 163, 184, 0.2);
  color: #94a3b8;
}

.theme-dark .um-confirm-close:hover {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.theme-dark .sidebar-toggle {
  background: rgba(15, 23, 42, 0.85);
  border-color: rgba(148, 163, 184, 0.22);
  color: #e2e8f0;
}

.theme-dark .sidebar-toggle:hover {
  background: rgba(17, 24, 39, 0.95);
  color: #fff;
}

/* Gamification & Feedback Loop */
.xp-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  color: #fff;
  padding: 12px 24px;
  border-radius: 50px;
  box-shadow: 0 10px 25px rgba(14, 165, 233, 0.4);
  font-weight: 700;
  font-size: 1.1rem;
  z-index: 9999;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: none;
}

.xp-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.xp-toast i {
  color: #fbbf24;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* Confetti */
.confetti-piece {
  position: fixed;
  width: 10px;
  height: 10px;
  background: #f00;
  z-index: 10000;
  pointer-events: none;
}

/* Level Up Overlay */
.level-up-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.9);
  z-index: 10001;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
  backdrop-filter: blur(8px);
}

.level-up-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.level-up-content {
  text-align: center;
  transform: scale(0.8);
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.level-up-overlay.visible .level-up-content {
  transform: scale(1);
}

.level-badge {
  font-size: 80px;
  color: #fbbf24;
  text-shadow: 0 0 30px rgba(251, 191, 36, 0.6);
  margin-bottom: 20px;
  animation: bounce 2s infinite;
}

.level-title {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.level-desc {
  font-size: 18px;
  color: #94a3b8;
  margin-bottom: 30px;
}

.level-btn {
  background: #fbbf24;
  color: #0f172a;
  border: none;
  padding: 12px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s;
  box-shadow: 0 4px 12px rgba(251, 191, 36, 0.3);
}

.level-btn:hover {
  transform: scale(1.05);
}

@keyframes bounce {

  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }

  40% {
    transform: translateY(-20px);
  }

  60% {
    transform: translateY(-10px);
  }
}

/* --- Shepherd Tour Guide (Custom Theme) - V7 Variables --- */

/* Base container using CSS Variables */
.shepherd-element.shepherd-theme-custom {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 16px;
  max-width: 420px;
  font-family: 'Exo 2', sans-serif;
  z-index: 9999;
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.15);
}

/* Dark theme shadow override for depth */
body.theme-dark .shepherd-element.shepherd-theme-custom,
[data-theme="dark"] .shepherd-element.shepherd-theme-custom {
  box-shadow: 0 25px 60px -5px rgba(0, 0, 0, 0.65);
}

/* Header & Text */
.shepherd-theme-custom .shepherd-header {
  padding: 20px 24px 0 24px;
  border: none;
  background: transparent;
  display: flex;
  align-items: center;
}

.shepherd-theme-custom .shepherd-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  flex: 1;
}

.shepherd-theme-custom .shepherd-text {
  padding: 12px 24px 24px 24px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  /* Use main text color, or muted if preferred */
}

/* Ensure text is readable in dark mode (muted usually works, but text is safer) */
body.theme-dark .shepherd-theme-custom .shepherd-text {
  color: #cbd5e1;
  /* Light slate for better readability on dark */
}

/* Footer Buttons */
.shepherd-theme-custom .shepherd-footer {
  padding: 0 24px 24px 24px;
  border-top: none;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Primary Button (Matches .btn-primary) */
.shepherd-theme-custom .shepherd-button {
  background: var(--primary) !important;
  color: #ffffff !important;
  border-radius: 10px !important;
  padding: 10px 24px !important;
  font-weight: 600 !important;
  border: none !important;
  cursor: pointer;
  margin: 0 !important;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3) !important;
  transition: all 0.2s ease !important;
}

.shepherd-theme-custom .shepherd-button:hover {
  background: var(--primary-hover) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 8px 16px rgba(59, 130, 246, 0.45) !important;
}

/* Secondary Button (Matches .btn-secondary / .btn-outline) */
.shepherd-theme-custom .shepherd-button-secondary {
  background: transparent !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
  border-radius: 10px !important;
  padding: 10px 20px !important;
  font-weight: 500 !important;
  cursor: pointer;
  transition: all 0.2s ease !important;
  margin: 0 !important;
  box-shadow: none !important;
}

.shepherd-theme-custom .shepherd-button-secondary:hover {
  background: rgba(125, 125, 125, 0.1) !important;
  border-color: var(--text) !important;
  color: var(--text) !important;
  transform: translateY(-2px) !important;
}

/* --- ARROW FIX (Synced with Variables) --- */
/* Reset wrapper background */
.shepherd-element.shepherd-theme-custom .shepherd-arrow,
.shepherd-element.shepherd-theme-custom .shepherd-arrow:before {
  background: transparent !important;
}

/* The actual arrow triangle */
.shepherd-element.shepherd-theme-custom .shepherd-arrow:before {
  content: '';
  width: 16px;
  height: 16px;
  z-index: -1;
  transform: rotate(45deg);

  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
}

/* Arrow Border Logic - Remove borders on the connecting side */
.shepherd-element[data-popper-placement^='top'] .shepherd-arrow:before {
  border-bottom: none !important;
  border-right: none !important;
}

.shepherd-element[data-popper-placement^='bottom'] .shepherd-arrow:before {
  border-top: none !important;
  border-left: none !important;
}

.shepherd-element[data-popper-placement^='left'] .shepherd-arrow:before {
  border-top: none !important;
  border-right: none !important;
}

.shepherd-element[data-popper-placement^='right'] .shepherd-arrow:before {
  border-bottom: none !important;
  border-left: none !important;
}

.shepherd-cancel-icon {
  display: none;
}

/* ===== Reusable Empty State Component ===== */
.um-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 24px;
  animation: um-empty-fade 0.5s ease;
}

@keyframes um-empty-fade {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

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

.um-empty-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(6, 182, 212, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.um-empty-icon i {
  font-size: 28px;
  color: var(--primary);
  opacity: 0.8;
}

.um-empty-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.um-empty-desc {
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--muted);
  max-width: 320px;
  line-height: 1.5;
}

.um-empty-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  background: var(--primary);
  color: var(--primary-contrast);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.um-empty-action:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.3);
}

.um-empty-action i {
  font-size: 14px;
}

/* Size variants */
.um-empty-sm {
  padding: 24px 16px;
}

.um-empty-sm .um-empty-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 12px;
}

.um-empty-sm .um-empty-icon i {
  font-size: 20px;
}

.um-empty-sm .um-empty-title {
  font-size: 15px;
}

.um-empty-sm .um-empty-desc {
  font-size: 13px;
}

.um-empty-lg {
  padding: 64px 32px;
}

.um-empty-lg .um-empty-icon {
  width: 96px;
  height: 96px;
  margin-bottom: 28px;
}

.um-empty-lg .um-empty-icon i {
  font-size: 36px;
}

.um-empty-lg .um-empty-title {
  font-size: 22px;
}

.um-empty-lg .um-empty-desc {
  font-size: 15px;
  max-width: 400px;
}

/* Dark theme */
.theme-dark .um-empty-icon {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.15), rgba(6, 182, 212, 0.15));
}

/* ===== Print Styles ===== */
@media print {

  /* Hide non-content elements */
  .sidebar,
  .header,
  .um-footer,
  .mobile-nav,
  .mobile-nav-scrim,
  .skip-to-content,
  .um-cursor,
  .xp-toast,
  .level-up-overlay,
  .confetti-piece,
  .modal,
  .modal-overlay,
  .um-toast-container,
  .toast-container,
  .onboarding-widget,
  .hero-actions,
  .btn-premium,
  .shepherd-element,
  .shepherd-modal-overlay-container,
  #mobileNav,
  #mobileNavScrim,
  #userMenuBackdrop {
    display: none !important;
  }

  /* Reset layout */
  body {
    background: #fff !important;
    color: #000 !important;
    font-size: 12pt;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .layout-with-sidebar .main-wrapper {
    margin-left: 0 !important;
    width: 100% !important;
  }

  .container {
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .layout-with-sidebar .main .container {
    margin: 0 !important;
    padding: 0 !important;
  }

  /* Clean card styles for print */
  .dashboard-card,
  .widget,
  .card {
    box-shadow: none !important;
    border: 1px solid #ddd !important;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  /* Schedule print styles */
  .schedule-toolbar .btn,
  .schedule-toolbar select,
  .schedule-view-toggle {
    display: none !important;
  }

  .calendar-wrapper {
    overflow: visible !important;
  }

  .schedule-day-card {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  /* Grades print styles */
  .grades-table,
  .grades-table th,
  .grades-table td {
    border: 1px solid #ccc !important;
    color: #000 !important;
  }

  .grades-table th {
    background: #f0f0f0 !important;
  }

  /* Attendance print styles */
  .attendance-table,
  .attendance-table th,
  .attendance-table td {
    border: 1px solid #ccc !important;
    color: #000 !important;
  }

  /* Links: show URL */
  a[href]::after {
    content: none;
    /* Don't clutter with URLs in app context */
  }

  /* Page margins */
  @page {
    margin: 1.5cm;
  }
}

/* ── Update Banner ── */
#um-update-banner {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  animation: um-update-slide-up 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.um-update-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  color: #fff;
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(14, 165, 233, 0.35), 0 2px 8px rgba(0, 0, 0, 0.1);
  font-size: 14px;
  font-weight: 500;
  backdrop-filter: blur(12px);
  white-space: nowrap;
}

.um-update-inner i {
  font-size: 16px;
}

.um-update-btn {
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.um-update-btn:hover {
  background: rgba(255, 255, 255, 0.35);
}

.um-update-close {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  font-size: 18px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  transition: color 0.2s;
}

.um-update-close:hover {
  color: #fff;
}

@keyframes um-update-slide-up {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(20px) scale(0.95);
  }

  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
}

/* PWA Install Banner */
.pwa-install-banner {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  max-width: 480px;
  width: calc(100% - 32px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: var(--surface, #fff);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.15);
  animation: um-update-slide-up 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.pwa-install-content {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.pwa-install-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  flex-shrink: 0;
}

.pwa-install-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.pwa-install-text strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--text, #0f172a);
}

.pwa-install-text span {
  font-size: 12px;
  color: var(--muted, #64748b);
}

.pwa-install-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.pwa-install-btn {
  padding: 8px 16px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, #0ea5e9, #0284c7);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
  transition: all 0.15s ease;
}

.pwa-install-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.4);
}

.pwa-install-dismiss {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--muted, #64748b);
  font-size: 18px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.pwa-install-dismiss:hover {
  background: rgba(0, 0, 0, 0.04);
  color: var(--text);
}

.theme-dark .pwa-install-banner {
  background: var(--surface);
  border-color: var(--border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* Connectivity Toast */
.connectivity-toast {
  position: fixed;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10001;
  padding: 10px 24px;
  border-radius: 12px;
  font-size: 0.9em;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: top 0.4s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.connectivity-toast.visible {
  top: 24px;
}

.connectivity-toast.offline {
  background: #ff4444;
  color: #fff;
}

.connectivity-toast.online {
  background: #00c853;
  color: #fff;
}

/* ── Achievement celebration toast ── */
.ach-toast-overlay {
  position: fixed;
  inset: 0;
  z-index: 12000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  cursor: pointer;
}

.ach-toast-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.ach-toast-card {
  position: relative;
  text-align: center;
  padding: 40px 48px 32px;
  background: var(--surface, #fff);
  border-radius: 24px;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.25);
  transform: scale(0.8) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: 360px;
  width: 90vw;
  overflow: hidden;
}

.ach-toast-overlay.visible .ach-toast-card {
  transform: scale(1) translateY(0);
}

.ach-toast-confetti {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.ach-confetti-particle {
  position: absolute;
  top: -10px;
  animation: achConfettiFall 1s ease-out forwards;
}

@keyframes achConfettiFall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }

  100% {
    transform: translateY(300px) rotate(720deg);
    opacity: 0;
  }
}

.ach-toast-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: #fff;
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
  animation: achIconPulse 0.6s ease 0.3s both;
}

@keyframes achIconPulse {
  0% {
    transform: scale(0);
  }

  60% {
    transform: scale(1.15);
  }

  100% {
    transform: scale(1);
  }
}

.ach-toast-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #f59e0b;
  margin-bottom: 8px;
}

.ach-toast-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--text, #1e293b);
  margin-bottom: 6px;
  line-height: 1.3;
}

.ach-toast-desc {
  font-size: 14px;
  color: var(--muted, #64748b);
  line-height: 1.4;
}

.theme-dark .ach-toast-card {
  background: var(--surface, #1e293b);
}

/* ============================================================
   NiceSelect — global dropdown portal styles
   Dropdown is appended to <body> so it escapes overflow:hidden.
   Page CSS still styles .nice-select .ns-control in their tree.
   ============================================================ */
select.ns-hidden-select {
  position: absolute !important;
  width: 1px !important; height: 1px !important;
  padding: 0 !important; margin: -1px !important;
  overflow: hidden !important; clip: rect(0,0,0,0) !important;
  border: 0 !important; opacity: 0 !important; pointer-events: none !important;
}

.nice-select { position: relative; }

.nice-select .ns-control {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  cursor: pointer;
  background: var(--surface, #fff);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 9px;
  padding: 0 11px; height: 36px;
  font: inherit; font-size: 13px; font-weight: 600;
  color: var(--text, #0f172a);
  transition: border-color 0.18s, box-shadow 0.18s;
}

.nice-select .ns-value {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.nice-select .ns-arrow {
  flex-shrink: 0; width: 0; height: 0;
  border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 4px solid var(--muted, #64748b);
  transition: transform 0.18s;
}

.nice-select.open .ns-arrow { transform: rotate(180deg); }
.nice-select .ns-control:hover { border-color: var(--primary, #0ea5e9); }

.nice-select.open .ns-control,
.nice-select .ns-control:focus {
  border-color: var(--primary, #0ea5e9);
  box-shadow: 0 0 0 3px rgba(14,165,233,0.1);
}

/* Body-portaled dropdown */
body > .ns-dropdown {
  position: fixed;
  z-index: 9999;
  background: var(--surface, #fff);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 10px;
  max-height: 260px;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.06);
  scrollbar-width: thin;
  scrollbar-color: var(--border, #cbd5e1) transparent;
}

body > .ns-dropdown::-webkit-scrollbar { width: 5px; }
body > .ns-dropdown::-webkit-scrollbar-thumb { background: var(--border, #cbd5e1); border-radius: 3px; }

body > .ns-dropdown .ns-search {
  display: block; width: 100%;
  padding: 8px 11px;
  border: none; border-bottom: 1px solid var(--border, #e2e8f0);
  font: inherit; font-size: 12px;
  background: transparent;
  color: var(--text, #0f172a);
  outline: none;
}

body > .ns-dropdown .ns-search::placeholder {
  color: var(--muted, #94a3b8); opacity: 0.7;
}

body > .ns-dropdown .ns-option {
  padding: 8px 11px; font-size: 13px; font-weight: 500;
  color: var(--text, #0f172a);
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  border-radius: 6px; margin: 2px 4px;
}

body > .ns-dropdown .ns-option:hover {
  background: rgba(14,165,233,0.06);
}

body > .ns-dropdown .ns-option.selected {
  background: rgba(14,165,233,0.08);
  color: var(--primary, #0ea5e9);
  font-weight: 700;
}

body > .ns-dropdown .ns-option.focused {
  background: rgba(14,165,233,0.06);
}

body > .ns-dropdown .ns-group-label {
  padding: 5px 11px; font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--muted, #94a3b8);
}

/* Dark theme overrides for portaled dropdown */
.theme-dark body > .ns-dropdown,
body.theme-dark > .ns-dropdown {
  background: var(--surface, #111827);
  border-color: var(--border, rgba(148,163,184,0.12));
  box-shadow: 0 8px 32px rgba(0,0,0,0.35), 0 2px 8px rgba(0,0,0,0.2);
}

.theme-dark body > .ns-dropdown .ns-search,
body.theme-dark > .ns-dropdown .ns-search {
  border-bottom-color: var(--border, rgba(148,163,184,0.12));
  color: var(--text, #f1f5f9);
}

.theme-dark body > .ns-dropdown .ns-option,
body.theme-dark > .ns-dropdown .ns-option {
  color: var(--text, #f1f5f9);
}

.theme-dark body > .ns-dropdown .ns-option:hover,
body.theme-dark > .ns-dropdown .ns-option:hover {
  background: rgba(56,189,248,0.08);
}

.theme-dark body > .ns-dropdown .ns-option.selected,
body.theme-dark > .ns-dropdown .ns-option.selected {
  background: rgba(56,189,248,0.12);
  color: var(--primary, #38bdf8);
}

.theme-dark body > .ns-dropdown .ns-option.focused,
body.theme-dark > .ns-dropdown .ns-option.focused {
  background: rgba(56,189,248,0.08);
}

.theme-dark body > .ns-dropdown .ns-group-label,
body.theme-dark > .ns-dropdown .ns-group-label {
  color: var(--muted, #64748b);
}