/* ==========================================================================
   CampusHub - Modern Design System & Stylesheet
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* --- Root Variables & Theme Tokens --- */
:root {
  /* Brand Accents */
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: rgba(99, 102, 241, 0.15);
  --primary-glow: rgba(99, 102, 241, 0.35);

  --secondary: #06b6d4;
  --secondary-hover: #0891b2;
  --secondary-light: rgba(6, 182, 212, 0.15);

  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;

  --success: #10b981;
  --success-light: rgba(16, 185, 129, 0.15);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.15);
  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.15);
  --info: #3b82f6;

  /* Fonts */
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Transitions */
  --tr-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --tr-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --tr-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.18);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.28);
  --shadow-glow: 0 0 24px var(--primary-glow);
}

/* Dark Theme (Default) */
[data-theme="dark"] {
  --bg-body: #0a0d14;
  --bg-sidebar: #0f1420;
  --bg-card: rgba(18, 24, 38, 0.75);
  --bg-card-hover: rgba(24, 32, 51, 0.85);
  --bg-card-solid: #131a29;
  --bg-input: #151d2f;
  --bg-glass: rgba(18, 24, 38, 0.65);
  --bg-modal: #111726;

  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-card: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(99, 102, 241, 0.4);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --text-inverse: #0a0d14;

  --nav-active-bg: rgba(99, 102, 241, 0.18);
  --badge-bg: rgba(255, 255, 255, 0.06);
}

/* Light Theme */
[data-theme="light"] {
  --bg-body: #f4f6fb;
  --bg-sidebar: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: #ffffff;
  --bg-card-solid: #ffffff;
  --bg-input: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.75);
  --bg-modal: #ffffff;

  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-card: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(99, 102, 241, 0.4);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;
  --text-inverse: #ffffff;

  --nav-active-bg: rgba(99, 102, 241, 0.12);
  --badge-bg: rgba(0, 0, 0, 0.05);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
}

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

html, body {
  height: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  display: flex;
  transition: background-color var(--tr-normal), color var(--tr-normal);
}

/* Ambient Background Glow */
body::before {
  content: '';
  position: fixed;
  top: -15%;
  right: -10%;
  width: 50vw;
  height: 50vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  bottom: -20%;
  left: 10%;
  width: 45vw;
  height: 45vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* --- App Layout --- */
.app-container {
  display: flex;
  width: 100%;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* --- Sidebar Navigation --- */
.sidebar {
  width: 270px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 100vh;
  position: sticky;
  top: 0;
  transition: transform var(--tr-normal), background-color var(--tr-normal);
  z-index: 40;
}

.sidebar-header {
  padding: 24px 20px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  object-fit: cover;
  box-shadow: 0 0 16px var(--primary-glow);
  border: 1.5px solid rgba(255, 255, 255, 0.15);
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #818cf8 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.brand-text span {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 14px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-section-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 12px 10px 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--tr-fast);
  position: relative;
  cursor: pointer;
  border: 1px solid transparent;
}

.nav-link svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
  transition: transform var(--tr-fast), stroke var(--tr-fast);
  flex-shrink: 0;
}

.nav-link:hover {
  color: var(--text-main);
  background-color: var(--badge-bg);
  transform: translateX(3px);
}

.nav-link.active {
  color: var(--primary);
  background-color: var(--nav-active-bg);
  border-color: rgba(99, 102, 241, 0.25);
  font-weight: 700;
}

.nav-link.active svg {
  stroke: var(--primary);
}

.nav-badge {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
}

.sidebar-footer {
  padding: 16px 14px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.user-profile-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: border-color var(--tr-fast);
}

.user-profile-card:hover {
  border-color: var(--primary);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.88rem;
  flex-shrink: 0;
}

.user-info {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --- Main Content Area --- */
.main-wrapper {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* --- Top Header Bar --- */
.top-header {
  height: 72px;
  padding: 0 32px;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: sticky;
  top: 0;
  z-index: 30;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  padding: 6px;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.search-bar-container {
  position: relative;
  width: 380px;
}

.search-input {
  width: 100%;
  height: 42px;
  padding: 0 40px 0 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-card);
  background: var(--bg-input);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.88rem;
  transition: all var(--tr-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-dim);
  pointer-events: none;
}

.search-shortcut {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--badge-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.campus-clock-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.clock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.theme-toggle-btn, .quick-action-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  color: var(--text-main);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--tr-fast);
}

.theme-toggle-btn:hover, .quick-action-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: scale(1.05);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 100%);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-family: var(--font-main);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--primary-glow);
  transition: all var(--tr-fast);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px var(--primary-glow);
  transform: translateY(-1.5px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-card);
  padding: 9px 18px;
  border-radius: var(--radius-full);
  font-family: var(--font-main);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--tr-fast);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

/* --- Content Views Container --- */
.content-area {
  flex: 1;
  padding: 32px;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
}

.view-section {
  display: none;
  animation: fadeIn 0.25s ease-out forwards;
}

.view-section.active {
  display: block;
}

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

/* --- Section Headings --- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* --- Glassmorphic Card Styles --- */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--tr-normal), box-shadow var(--tr-normal), border-color var(--tr-normal);
  position: relative;
  overflow: hidden;
}

.glass-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

/* --- DASHBOARD VIEW --- */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

/* Hero Welcome Banner */
.hero-banner {
  grid-column: span 12;
  position: relative;
  min-height: 220px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 36px 44px;
  background-size: cover;
  background-position: center;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-md);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 13, 20, 0.94) 0%, rgba(10, 13, 20, 0.78) 50%, rgba(10, 13, 20, 0.4) 100%);
  z-index: 1;
}

[data-theme="light"] .hero-overlay {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.82) 50%, rgba(255, 255, 255, 0.45) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.35);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

[data-theme="light"] .hero-badge {
  background: rgba(99, 102, 241, 0.12);
  color: var(--primary);
  border-color: rgba(99, 102, 241, 0.25);
}

.hero-title {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 8px;
}

.hero-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 20px;
}

.hero-metrics {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.hero-metric-item {
  display: flex;
  flex-direction: column;
}

.metric-value {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Quick Status Cards */
.col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

.card-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-action-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  cursor: pointer;
}

.card-action-link:hover {
  text-decoration: underline;
}

/* Today's Schedule Timeline on Dashboard */
.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.timeline-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--tr-fast);
}

.timeline-item:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
}

.timeline-item.active-class {
  border-color: var(--primary);
  background: var(--primary-light);
}

.class-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.class-time-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--badge-bg);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  min-width: 80px;
  text-align: center;
}

.class-info h4 {
  font-size: 0.92rem;
  font-weight: 700;
}

.class-info span {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.status-chip {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.chip-ongoing {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.chip-upcoming {
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary);
  border: 1px solid rgba(99, 102, 241, 0.35);
}

.chip-done {
  background: var(--badge-bg);
  color: var(--text-dim);
}

/* Attendance Quick Progress Bars */
.att-quick-item {
  margin-bottom: 14px;
}

.att-quick-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.84rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: var(--badge-bg);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.5s ease-in-out;
}

.fill-safe { background: linear-gradient(90deg, #10b981, #34d399); }
.fill-warn { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.fill-danger { background: linear-gradient(90deg, #ef4444, #f87171); }

/* Quick Notes Mini Board */
.quick-memo-box {
  width: 100%;
  height: 100px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  font-family: var(--font-main);
  font-size: 0.85rem;
  color: var(--text-main);
  resize: none;
  transition: border-color var(--tr-fast);
}

.quick-memo-box:focus {
  outline: none;
  border-color: var(--primary);
}

/* --- TIMETABLE VIEW --- */
.day-selector-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.day-tab {
  padding: 10px 22px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  color: var(--text-muted);
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all var(--tr-fast);
  white-space: nowrap;
}

.day-tab:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

.day-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 14px var(--primary-glow);
}

.timetable-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.class-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  transition: all var(--tr-fast);
  position: relative;
}

.class-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.class-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.class-code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--primary-light);
  color: var(--primary);
}

.class-title {
  font-size: 1.1rem;
  font-weight: 800;
  margin-top: 6px;
}

.class-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.class-detail-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.class-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all var(--tr-fast);
}

.btn-icon:hover {
  color: var(--text-main);
  background: var(--badge-bg);
}

.btn-icon.danger:hover {
  color: var(--danger);
  background: var(--danger-light);
}

/* --- ATTENDANCE & BUNK METER VIEW --- */
.bunk-calculator-hero {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(6, 182, 212, 0.1) 100%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-xl);
  padding: 28px 36px;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.threshold-slider-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.slider-input {
  accent-color: var(--primary);
  width: 150px;
  cursor: pointer;
}

.threshold-val {
  font-weight: 800;
  color: var(--primary);
  font-size: 1.1rem;
}

.attendance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.att-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--tr-fast);
}

.att-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.att-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.att-percentage-ring {
  font-size: 1.6rem;
  font-weight: 800;
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.att-percentage-ring small {
  font-size: 0.9rem;
  font-weight: 600;
}

.att-bunk-status-badge {
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.4;
}

.att-actions-row {
  display: grid;
  grid-template-columns: 1fr 1fr 40px;
  gap: 8px;
}

.btn-present {
  background: var(--success-light);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 8px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.84rem;
  cursor: pointer;
  transition: all var(--tr-fast);
}

.btn-present:hover {
  background: var(--success);
  color: white;
}

.btn-absent {
  background: var(--danger-light);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 8px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.84rem;
  cursor: pointer;
  transition: all var(--tr-fast);
}

.btn-absent:hover {
  background: var(--danger);
  color: white;
}

/* --- TASKS & ASSIGNMENTS VIEW --- */
.tasks-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.filter-pills {
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.filter-pill {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--tr-fast);
}

.filter-pill.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.tasks-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.task-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--tr-fast);
  gap: 16px;
}

.task-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.task-card.completed {
  opacity: 0.6;
}

.task-card.completed .task-title {
  text-decoration: line-through;
}

.task-main {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
}

.task-checkbox {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 2px solid var(--text-dim);
  cursor: pointer;
  accent-color: var(--primary);
}

.priority-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

.priority-urgent { background: var(--danger-light); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.4); }
.priority-high { background: var(--warning-light); color: var(--warning); border: 1px solid rgba(245, 158, 11, 0.4); }
.priority-medium { background: var(--secondary-light); color: var(--secondary); border: 1px solid rgba(6, 182, 212, 0.4); }
.priority-low { background: var(--badge-bg); color: var(--text-dim); }

.due-countdown-tag {
  font-size: 0.78rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
}

/* --- CGPA / GPA CALCULATOR --- */
.gpa-calculator-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 28px;
}

.grade-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 14px;
}

.grade-table th {
  text-align: left;
  padding: 10px 14px;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border-subtle);
}

.grade-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.88rem;
}

.grade-input, .credit-input {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-main);
}

.gpa-result-card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(139, 92, 246, 0.12));
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.gpa-big-score {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #818cf8, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- NOTES & STUDY VAULT --- */
.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.note-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  transition: all var(--tr-fast);
  cursor: pointer;
}

.note-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.note-card.pinned {
  border-color: rgba(99, 102, 241, 0.4);
  background: var(--primary-light);
}

.note-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.note-snippet {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  white-space: pre-wrap;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.note-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-dim);
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
}

/* Quick Campus Links Section */
.campus-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.campus-link-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: all var(--tr-fast);
}

.campus-link-card:hover {
  border-color: var(--primary);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  color: var(--primary);
}

/* --- POCKET BUDGET & EXPENSES --- */
.budget-summary-banner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.budget-stat-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.budget-stat-box h4 {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.budget-stat-box .amount {
  font-size: 1.8rem;
  font-weight: 800;
  margin-top: 6px;
}

.expense-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.expense-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
}

.expense-cat-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--badge-bg);
}

/* --- CANTEEN & CAMPUS LIFE --- */
.canteen-nav-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.canteen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.meal-slot-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.meal-slot-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.meal-items-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.meal-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
}

.emergency-directory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.emergency-contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--tr-fast);
}

.emergency-contact-card:hover {
  border-color: var(--primary);
}

/* --- MODAL DIALOGS --- */
dialog {
  border: none;
  background: transparent;
  padding: 0;
  margin: auto;
  max-width: 540px;
  width: 90vw;
  color: var(--text-main);
  outline: none;
}

dialog::backdrop {
  background: rgba(10, 13, 20, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fadeIn 0.2s ease-out;
}

.modal-content {
  background: var(--bg-modal);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 30px;
  box-shadow: var(--shadow-lg);
  animation: modalScale 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

@keyframes modalScale {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

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

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 800;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.9rem;
  transition: border-color var(--tr-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--primary);
}

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

/* --- QUICK SEARCH MODAL / COMMAND PALETTE --- */
#searchModal dialog {
  max-width: 620px;
}

.palette-input-wrap {
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 16px;
}

.palette-search-input {
  width: 100%;
  height: 48px;
  padding: 0 16px 0 44px;
  font-size: 1.05rem;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-main);
}

.palette-search-input:focus {
  outline: none;
  border-color: var(--primary);
}

.palette-results-list {
  max-height: 340px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.palette-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--tr-fast);
}

.palette-item:hover, .palette-item.selected {
  background: var(--primary-light);
  color: var(--primary);
}

/* --- TOAST SYSTEM --- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 100;
  pointer-events: none;
}

.toast {
  background: var(--bg-modal);
  border: 1px solid var(--border-card);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  pointer-events: auto;
  animation: toastIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  transition: opacity 0.3s ease;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px) scale(0.9); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* --- RESPONSIVE BREAKPOINTS --- */
@media (max-width: 1024px) {
  .sidebar {
    position: fixed;
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .mobile-menu-btn {
    display: block;
  }
  .search-bar-container {
    width: 240px;
  }
  .gpa-calculator-grid {
    grid-template-columns: 1fr;
  }
  .col-4, .col-6, .col-8 {
    grid-column: span 12;
  }
}

@media (max-width: 768px) {
  .top-header {
    padding: 0 16px;
  }
  .content-area {
    padding: 18px 14px;
  }
  .search-bar-container {
    display: none;
  }
  .campus-clock-pill {
    display: none;
  }
  .hero-banner {
    padding: 24px 20px;
  }
  .hero-title {
    font-size: 1.6rem;
  }
  .budget-summary-banner {
    grid-template-columns: 1fr;
  }
}