/* ============================================
   Campus Dashboard — Premium Dark UI
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg-primary: #0a0a1a;
  --bg-secondary: #12122a;
  --bg-card: rgba(20, 20, 50, 0.55);
  --bg-card-hover: rgba(30, 30, 65, 0.7);
  --border-card: rgba(120, 100, 255, 0.12);
  --border-glow: rgba(108, 99, 255, 0.25);

  --text-primary: #eeeef5;
  --text-secondary: #a0a0c0;
  --text-muted: #6a6a8a;

  --accent-purple: #6C63FF;
  --accent-pink: #E040FB;
  --accent-cyan: #00E5FF;
  --accent-orange: #FF9100;
  --accent-green: #00E676;
  --accent-red: #FF5252;

  --gradient-primary: linear-gradient(135deg, #6C63FF 0%, #E040FB 100%);
  --gradient-meal: linear-gradient(135deg, #FF9100 0%, #FF5252 100%);
  --gradient-class: linear-gradient(135deg, #00E5FF 0%, #6C63FF 100%);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 0 1px var(--border-card);
  --shadow-glow: 0 0 40px rgba(108, 99, 255, 0.15);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* --- Ambient Background Blobs --- */
.bg-blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
  animation: blobFloat 18s ease-in-out infinite alternate;
}

.blob-1 {
  width: 600px;
  height: 600px;
  background: var(--accent-purple);
  top: -200px;
  left: -100px;
}

.blob-2 {
  width: 500px;
  height: 500px;
  background: var(--accent-pink);
  bottom: -150px;
  right: -100px;
  animation-delay: -6s;
}

.blob-3 {
  width: 400px;
  height: 400px;
  background: var(--accent-cyan);
  top: 40%;
  left: 50%;
  animation-delay: -12s;
}

@keyframes blobFloat {
  0% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
  100% { transform: translate(10px, -10px) scale(1); }
}

/* --- Header --- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: rgba(10, 10, 26, 0.75);
  backdrop-filter: blur(24px) saturate(1.5);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  border-bottom: 1px solid var(--border-card);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.manage-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(108, 99, 255, 0.12);
  border: 1px solid rgba(108, 99, 255, 0.25);
  border-radius: var(--radius-sm);
  color: var(--accent-purple);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.manage-btn:hover {
  background: rgba(108, 99, 255, 0.22);
  border-color: var(--accent-purple);
  transform: translateY(-1px);
}

.live-clock {
  font-size: 1.5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.date-display {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* --- Navigation --- */
.main-nav {
  display: flex;
  gap: 12px;
  background: rgba(20, 20, 50, 0.4);
  padding: 6px;
  border-radius: 12px;
  border: 1px solid var(--border-card);
}

.nav-link {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  color: var(--text-primary);
  background: rgba(108, 99, 255, 0.2);
  box-shadow: 0 0 12px rgba(108, 99, 255, 0.2);
}

/* --- Views --- */
.view {
  display: none;
  animation: fadeInUp 0.4s ease-out both;
}

.view.active {
  display: block;
}

/* --- Main --- */
main {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

/* --- Hero --- */
.hero {
  margin-bottom: 36px;
  animation: fadeInUp 0.6s ease-out;
}

.hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  margin-top: 6px;
  font-size: 1.05rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.hero-sub .holiday-badge {
  display: inline-block;
  padding: 2px 10px;
  margin-left: 6px;
  background: rgba(224, 64, 251, 0.15);
  border: 1px solid rgba(224, 64, 251, 0.3);
  border-radius: 12px;
  font-size: 0.8rem;
  color: var(--accent-pink);
  font-weight: 600;
}

/* --- Dashboard Grid --- */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1.3fr;
  gap: 24px;
  margin-bottom: 24px;
}

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  animation: fadeInUp 0.7s ease-out both;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.card-header h2 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.card-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.meal-icon { background: linear-gradient(135deg, rgba(255,145,0,0.2), rgba(255,82,82,0.2)); }
.class-icon { background: linear-gradient(135deg, rgba(0,229,255,0.2), rgba(108,99,255,0.2)); }
.schedule-icon { background: linear-gradient(135deg, rgba(108,99,255,0.2), rgba(224,64,251,0.2)); }
.holidays-icon { background: linear-gradient(135deg, rgba(0,230,118,0.2), rgba(255,145,0,0.2)); }

/* --- Meal Card --- */
.meal-body { margin-bottom: 20px; }

.meal-name {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--gradient-meal);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.meal-countdown {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 12px;
}

.meal-progress-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 16px;
}

.meal-progress-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--gradient-meal);
  transition: width 1s ease;
}

.meal-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meal-menu .menu-tag {
  padding: 5px 12px;
  background: rgba(255, 145, 0, 0.1);
  border: 1px solid rgba(255, 145, 0, 0.2);
  border-radius: 20px;
  font-size: 0.78rem;
  color: var(--accent-orange);
  font-weight: 500;
}

/* Meals Timeline */
.meals-timeline {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border-card);
}

.meal-timeline-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.meal-timeline-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.meal-timeline-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.meal-timeline-dot.done { background: var(--text-muted); opacity: 0.4; }
.meal-timeline-dot.active { background: var(--accent-orange); box-shadow: 0 0 12px rgba(255, 145, 0, 0.5); }
.meal-timeline-dot.upcoming { background: rgba(255, 145, 0, 0.3); }

.meal-timeline-info { flex: 1; }
.meal-timeline-info .tl-name { font-weight: 600; font-size: 0.88rem; }
.meal-timeline-info .tl-time { font-size: 0.75rem; color: var(--text-muted); }

.meal-timeline-status {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
}

.meal-timeline-status.done { background: rgba(255,255,255,0.05); color: var(--text-muted); }
.meal-timeline-status.active { background: rgba(255,145,0,0.15); color: var(--accent-orange); }
.meal-timeline-status.upcoming { background: rgba(0,230,118,0.1); color: var(--accent-green); }

/* --- Classes Card --- */
.classes-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.class-item {
  display: flex;
  align-items: stretch;
  gap: 16px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  cursor: default;
}

.class-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: 4px 0 0 4px;
}

.class-item.next::before { background: var(--accent-cyan); box-shadow: 0 0 12px rgba(0, 229, 255, 0.4); }
.class-item.later::before { background: var(--accent-purple); }
.class-item.extra::before { background: var(--accent-pink); box-shadow: 0 0 12px rgba(224, 64, 251, 0.4); }

.class-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-glow);
  transform: translateX(4px);
}

.class-item.next {
  border-color: rgba(0, 229, 255, 0.2);
  background: rgba(0, 229, 255, 0.04);
}

.class-time-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 70px;
  padding: 8px 4px;
  background: rgba(108, 99, 255, 0.08);
  border-radius: var(--radius-sm);
}

.class-time-block .time-start {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.class-time-block .time-end {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.class-time-block .time-sep {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin: 1px 0;
}

.class-info { flex: 1; }

.class-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.class-details {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.class-detail {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.class-detail .detail-icon {
  font-size: 0.85rem;
  opacity: 0.7;
}

.class-badge {
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.class-badge.next-badge {
  background: rgba(0, 229, 255, 0.15);
  color: var(--accent-cyan);
}

.class-badge.later-badge {
  background: rgba(108, 99, 255, 0.12);
  color: var(--accent-purple);
}

.class-badge.extra-badge {
  background: rgba(224, 64, 251, 0.15);
  color: var(--accent-pink);
}

/* No Classes */
.no-classes {
  text-align: center;
  padding: 48px 20px;
}

.no-classes-icon { font-size: 3rem; margin-bottom: 12px; }

.no-classes p {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.no-classes span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- Full Schedule Timeline --- */
.full-schedule-card {
  animation-delay: 0.15s;
}

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

.timeline-slot {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  position: relative;
  transition: all var(--transition);
}

.timeline-slot:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-glow);
}

.timeline-slot.is-past { opacity: 0.4; }
.timeline-slot.is-current {
  border-color: rgba(0, 229, 255, 0.35);
  background: rgba(0, 229, 255, 0.06);
}

.timeline-slot.is-current::after {
  content: 'NOW';
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.6rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 8px;
  background: var(--accent-cyan);
  color: var(--bg-primary);
  letter-spacing: 0.06em;
}

.timeline-slot.is-extra {
  border-color: rgba(224, 64, 251, 0.3);
  background: rgba(224, 64, 251, 0.05);
}

.slot-time-col {
  min-width: 110px;
  flex-shrink: 0;
}

.slot-time {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.slot-duration {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.slot-info { flex: 1; }

.slot-title {
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.slot-room {
  font-size: 0.73rem;
  color: var(--text-secondary);
}

.slot-type-badge {
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.slot-type-badge.type-lecture {
  background: rgba(108, 99, 255, 0.12);
  color: var(--accent-purple);
}

.slot-type-badge.type-tutorial {
  background: rgba(0, 229, 255, 0.12);
  color: var(--accent-cyan);
}

.slot-type-badge.type-laboratory {
  background: rgba(0, 230, 118, 0.12);
  color: var(--accent-green);
}

.slot-extra-tag {
  display: inline-block;
  margin-top: 6px;
  padding: 1px 8px;
  border-radius: 8px;
  font-size: 0.6rem;
  font-weight: 700;
  background: rgba(224, 64, 251, 0.15);
  color: var(--accent-pink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.slot-free {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Type badges in class cards */
.class-type-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 8px;
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-left: 6px;
  vertical-align: middle;
}

.class-type-badge.type-lecture {
  background: rgba(108, 99, 255, 0.12);
  color: var(--accent-purple);
}

.class-type-badge.type-tutorial {
  background: rgba(0, 229, 255, 0.12);
  color: var(--accent-cyan);
}

.class-type-badge.type-laboratory {
  background: rgba(0, 230, 118, 0.12);
  color: var(--accent-green);
}

/* --- Weekly Views --- */
.weekly-card {
  margin-top: 16px;
}

/* --- Room Finder View --- */
.room-finder-view-card {
  margin-top: 16px;
}

.rf-controls {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 12px;
  align-items: end;
  margin-bottom: 14px;
}

.rf-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.rf-stat-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rf-stat-card span {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.rf-stat-card strong {
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1;
}

.rf-free-stat strong {
  color: var(--accent-green);
}

.rf-occupied-stat strong {
  color: var(--accent-orange);
}

.rf-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.rf-panel {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 14px;
}

.rf-panel h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.rf-room-list {
  max-height: 340px;
  overflow-y: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.rf-room-chip {
  padding: 7px 10px;
  border-radius: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(0, 230, 118, 0.12);
  border: 1px solid rgba(0, 230, 118, 0.25);
  color: var(--accent-green);
}

.rf-occupied-item {
  width: 100%;
  background: rgba(255, 145, 0, 0.08);
  border: 1px solid rgba(255, 145, 0, 0.2);
  border-radius: 10px;
  padding: 10px 12px;
}

.rf-occupied-main {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.8rem;
  margin-bottom: 4px;
}

.rf-occupied-main strong {
  color: var(--text-primary);
}

.rf-occupied-main span {
  color: var(--accent-orange);
  font-weight: 600;
  text-align: right;
}

.rf-occupied-sub {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.weekly-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 16px;
}

/* Desktop row-based approach */
@media (min-width: 768px) {
  .weekly-grid {
    flex-direction: row;
    align-items: stretch;
    overflow-x: auto;
    padding-bottom: 12px;
  }
}

.weekly-day-col {
  flex: 1;
  min-width: 250px;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.weekly-day-header {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-card);
  margin-bottom: 4px;
  text-align: center;
}

.weekly-item {
  background: rgba(255, 255, 255, 0.03);
  padding: 14px;
  border-radius: var(--radius-sm);
  border-left: 3px solid rgba(255, 255, 255, 0.1);
}

.weekly-item-time {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 700;
  margin-bottom: 6px;
}

.weekly-item-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 4px;
  line-height: 1.3;
}

.weekly-item-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.weekly-meal-tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 2px 8px;
  background: rgba(255, 145, 0, 0.15);
  color: var(--accent-orange);
  border-radius: 12px;
  margin-bottom: 6px;
  font-weight: 700;
}

/* --- Weekly Schedule Table --- */
.weekly-schedule-wrapper {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
}

.weekly-schedule-table {
  width: 100%;
  min-width: 800px;
  border-collapse: collapse;
  text-align: center;
}

.weekly-schedule-table th,
.weekly-schedule-table td {
  border: 1px solid var(--border-card);
  padding: 12px;
  height: 60px; /* Force rows to have some height to create consistent grid */
}

.weekly-schedule-table th {
  background: rgba(255, 255, 255, 0.05);
  font-weight: 800;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.weekly-schedule-table .time-col {
  width: 80px;
}

.weekly-schedule-table .time-cell {
  background: rgba(255, 255, 255, 0.02);
  font-weight: 700;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.class-cell {
  vertical-align: top;
  height: 1px; /* The table cell stretch hack */
  padding: 6px !important;
  cursor: default;
}

.class-cell-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  height: 100%;
  min-height: 50px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.class-cell-content:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
}

.class-title-table {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.class-type-table {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.95;
}

.class-room-table {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Colors for table cards */
.class-cell.type-lecture .class-cell-content {
  background: rgba(108, 99, 255, 0.18);
  border: 1px solid rgba(108, 99, 255, 0.3);
  border-left: 4px solid var(--accent-purple);
}

.class-cell.type-tutorial .class-cell-content {
  background: rgba(0, 229, 255, 0.18);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-left: 4px solid var(--accent-cyan);
}

.class-cell.type-laboratory .class-cell-content {
  background: rgba(0, 230, 118, 0.18);
  border: 1px solid rgba(0, 230, 118, 0.3);
  border-left: 4px solid var(--accent-green);
}

.class-cell.is-extra-weekly .class-cell-content {
  background: rgba(255, 82, 82, 0.18);
  border: 1px solid rgba(255, 82, 82, 0.3);
  border-left: 4px solid var(--accent-red);
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 720px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 28px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s ease;
}

.modal-overlay.open .modal {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-header h2 {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.6rem;
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

/* Tabs */
.modal-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.tab-btn {
  flex: 1;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

.tab-btn.active {
  background: rgba(108, 99, 255, 0.15);
  border-color: rgba(108, 99, 255, 0.35);
  color: var(--accent-purple);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeInUp 0.3s ease-out;
}

/* Forms */
.manage-form {
  margin-bottom: 20px;
}

.form-row {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  margin-bottom: 12px;
}

.form-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-group input {
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.88rem;
  transition: all var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent-purple);
  background: rgba(108, 99, 255, 0.06);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

.form-group input::placeholder {
  color: var(--text-muted);
}

/* Color scheme for date/time inputs */
.form-group input[type="date"],
.form-group input[type="time"] {
  color-scheme: dark;
}

.form-group select {
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.88rem;
  transition: all var(--transition);
  cursor: pointer;
  color-scheme: dark;
}

.form-group select:focus {
  outline: none;
  border-color: var(--accent-purple);
  background: rgba(108, 99, 255, 0.06);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

.form-group select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(108, 99, 255, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--border-card);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-glow);
}

.btn-danger {
  background: rgba(255, 82, 82, 0.12);
  color: var(--accent-red);
  border: 1px solid rgba(255, 82, 82, 0.2);
  padding: 6px 12px;
  font-size: 0.75rem;
}

.btn-danger:hover {
  background: rgba(255, 82, 82, 0.25);
}

/* Manage List */
.list-item-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.manage-list {
  max-height: 300px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.manage-list::-webkit-scrollbar {
  width: 5px;
}

.manage-list::-webkit-scrollbar-thumb {
  background: rgba(108, 99, 255, 0.3);
  border-radius: 3px;
}

.list-empty {
  text-align: center;
  padding: 32px 16px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.list-item:hover {
  background: rgba(255, 255, 255, 0.04);
}

.list-item-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.list-item-title {
  font-weight: 600;
  font-size: 0.88rem;
}

.list-item-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.tests-card-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 14px;
}

.tests-card-footer .btn {
  min-width: 120px;
}

/* Standalone Upcoming Tests Modal */
.modal-wide {
  max-width: 1080px;
}

.tests-modal-shell {
  padding: 0;
}

.tests-modal-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 16px;
  padding: 0 24px 24px;
}

.tests-modal-panel {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 16px;
}

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

.tests-modal-panel h3 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.tests-modal-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 62vh;
  overflow-y: auto;
  padding-right: 4px;
}

.tests-modal-list .test-item {
  margin-bottom: 0;
}

.test-modal-item .test-actions-col {
  opacity: 1;
  pointer-events: auto;
  align-items: flex-end;
  min-width: 120px;
}

.test-modal-actions {
  justify-content: space-between;
}

.tests-edit-form {
  margin-bottom: 0;
}

.tests-edit-actions {
  justify-content: space-between;
}

.tests-edit-actions .btn {
  min-width: 110px;
}

#upcoming-tests-modal .modal-header {
  margin-bottom: 0;
  padding: 22px 24px 16px;
}

#upcoming-tests-modal .card-subtitle {
  margin-top: 2px;
}

.tests-empty {
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed var(--border-card);
  border-radius: var(--radius-sm);
}

/* Room Finder Manage Tab (inside modal) */
#tab-room-finder-manage {
  display: none;
  flex-direction: column;
  gap: 18px;
}

#tab-room-finder-manage.active {
  display: flex;
}

.rf-upload-section,
.rf-manage-section {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 16px;
}

.rf-upload-head {
  margin-bottom: 12px;
}

.rf-upload-head h3 {
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.rf-upload-controls {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}

.rf-upload-status {
  margin-top: 10px;
  min-height: 18px;
  font-size: 0.8rem;
}

.rf-upload-status.success {
  color: var(--accent-green);
}

.rf-upload-status.error {
  color: var(--accent-red);
}

.rf-upload-status.info {
  color: var(--text-secondary);
}

.rf-schedule-form {
  margin-top: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--border-card);
}

.rf-form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.rf-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 12px;
}

.rf-filter-bar {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-card);
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}

.rf-filter-actions {
  display: flex;
  gap: 8px;
}

.rf-filter-summary {
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.rf-table-wrap {
  margin-top: 12px;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  overflow: auto;
  max-height: 300px;
}

.rf-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.rf-table th,
.rf-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-card);
  font-size: 0.8rem;
}

.rf-table th {
  position: sticky;
  top: 0;
  background: rgba(11, 11, 26, 0.95);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.72rem;
}

.rf-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

.rf-table-actions {
  display: flex;
  gap: 6px;
}

/* --- Toast Notifications --- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  animation: toastIn 0.3s ease-out, toastOut 0.3s ease-in 2.7s forwards;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.toast.success {
  background: linear-gradient(135deg, #00C853, #00E676);
  color: #0a0a1a;
}

.toast.error {
  background: linear-gradient(135deg, #FF1744, #FF5252);
}

.toast.info {
  background: linear-gradient(135deg, #6C63FF, #E040FB);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(16px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to { opacity: 0; transform: translateY(-8px) scale(0.95); }
}

/* --- Footer --- */
footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 32px 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-card);
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.pulse { animation: pulse 2s ease-in-out infinite; }

/* --- Responsive --- */
@media (max-width: 900px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  header {
    padding: 12px 16px;
  }
  main {
    padding: 20px 14px 48px;
  }
  .hero h1 {
    font-size: 1.7rem;
  }
  .timeline {
    grid-template-columns: 1fr 1fr;
  }
  .form-row {
    flex-direction: column;
  }
  .modal {
    width: 95%;
    padding: 20px;
  }

  .rf-controls {
    grid-template-columns: 1fr;
  }

  .rf-stats,
  .rf-grid {
    grid-template-columns: 1fr;
  }

  .tests-modal-grid {
    grid-template-columns: 1fr;
  }

  .rf-upload-controls,
  .rf-form-grid,
  .rf-filter-bar {
    grid-template-columns: 1fr;
  }

  .rf-filter-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 550px) {
  .hero h1 {
    font-size: 1.35rem;
  }
  .card {
    padding: 18px;
  }
  .class-item {
    flex-direction: column;
    gap: 10px;
  }
  .class-time-block {
    flex-direction: row;
    gap: 6px;
    min-width: unset;
  }
  .timeline {
    grid-template-columns: 1fr;
  }
  .live-clock {
    font-size: 1.15rem;
  }
  .manage-btn span {
    display: none;
  }
}

/* ─── Tut Tests Card ─── */
.tests-icon {
  background: linear-gradient(135deg, rgba(255,82,82,0.2), rgba(255,145,0,0.2));
}

.tests-card {
  margin-bottom: 24px;
  animation-delay: 0.1s;
}

.tests-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Test list items */
.test-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
  animation: fadeInUp 0.5s ease-out both;
}

.test-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  border-radius: 4px 0 0 4px;
}

.test-item:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-glow);
  transform: translateX(4px);
}

/* Urgency colour strips */
.test-item.test-today::before  { background: var(--accent-red);    box-shadow: 0 0 12px rgba(255,82,82,0.5); }
.test-item.test-soon::before   { background: var(--accent-orange); box-shadow: 0 0 12px rgba(255,145,0,0.4); }
.test-item.test-week::before   { background: var(--accent-cyan);   box-shadow: 0 0 10px rgba(0,229,255,0.3); }
.test-item.test-far::before    { background: var(--accent-purple); }

.test-item.test-today  { border-color: rgba(255, 82, 82, 0.25);  background: rgba(255, 82, 82, 0.05); }
.test-item.test-soon   { border-color: rgba(255,145, 0, 0.25);   background: rgba(255,145,  0, 0.04); }
.test-item.test-week   { border-color: rgba(0, 229,255, 0.18);   background: rgba(0,  229,255, 0.03); }

/* Date column */
.test-date-col {
  min-width: 68px;
  flex-shrink: 0;
  padding: 8px 6px;
  background: rgba(108, 99, 255, 0.08);
  border-radius: var(--radius-sm);
  text-align: center;
}

.test-date-str {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.test-date-full {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Info column */
.test-info { flex: 1; }

.test-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.test-code {
  display: inline-block;
  padding: 1px 7px;
  margin-left: 6px;
  border-radius: 8px;
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  background: rgba(108, 99, 255, 0.12);
  color: var(--accent-purple);
  vertical-align: middle;
}

.test-syllabus {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 3px;
}

.test-notes {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
  font-style: italic;
}

/* Urgency badges and actions */
.test-actions-col {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  flex-shrink: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.test-item:hover .test-actions-col,
.list-item:hover .test-actions-col {
  opacity: 1;
  pointer-events: auto;
}

.test-action-btn {
  background: transparent;
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}

.test-action-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.test-action-btn.complete-btn:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: rgba(0, 230, 118, 0.1);
}

.test-action-btn.undo-btn {
  color: var(--text-muted);
}
.test-action-btn.undo-btn:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
}

.test-badge {
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  flex-shrink: 0;
}

.test-badge-today { background: rgba(255, 82, 82, 0.18); color: var(--accent-red);    }
.test-badge-soon  { background: rgba(255,145,  0, 0.15); color: var(--accent-orange); }
.test-badge-week  { background: rgba(0, 229, 255, 0.12); color: var(--accent-cyan);   }
.test-badge-far   { background: rgba(108, 99, 255, 0.12); color: var(--accent-purple); }

/* ─── Test Alert Banner ─── */
#test-alert-banner {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  animation: fadeInUp 0.5s ease-out;
}

.test-alert {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  background: linear-gradient(135deg, rgba(255,82,82,0.12), rgba(255,145,0,0.08));
  border: 1px solid rgba(255, 82, 82, 0.3);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
  animation: pulseGlow 2.5s ease-in-out infinite;
}

.test-alert::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--accent-red);
  box-shadow: 0 0 12px rgba(255, 82, 82, 0.6);
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 82, 82, 0); }
  50%       { box-shadow: 0 0 20px 2px rgba(255, 82, 82, 0.12); }
}

.test-alert-icon { font-size: 1.3rem; flex-shrink: 0; }

.test-alert-body {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
}

.test-alert-body strong { font-weight: 800; color: var(--accent-red); }

.test-alert-syllabus {
  display: block;
  margin-top: 3px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.test-alert-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-weight: 600;
}

/* Responsive test items */
@media (max-width: 550px) {
  .test-item {
    flex-wrap: wrap;
    gap: 10px;
  }
  .test-date-col {
    min-width: 58px;
  }
  .test-badge {
    width: 100%;
    text-align: center;
  }
}

/* ─── Mobile Focus Layout ─── */
@media (max-width: 767px) {
  /* Hide unnecessary sections on mobile */
  #hero-section,
  #holidays-card,
  #full-schedule-card,
  #tests-card {
    display: none !important;
  }

  /* Make dashboard grid flex and reorder */
  .dashboard-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  /* Tests Alert Banner at the very top */
  .tests-wrapper {
    order: 1;
    display: flex;
    flex-direction: column;
    gap: 0 !important;
  }

  /* Upcoming Class next */
  #classes-card {
    order: 2;
  }

  /* Only display the primary upcoming class */
  .classes-list .class-item:nth-child(n+2) {
    display: none !important;
  }

  /* Meals at the bottom */
  #meal-card {
    order: 3;
  }
}