/* ═══════════════════════════════════════════════════════════════════════════
   AcademiX — SRM Student Portal
   Design System: Dark Glassmorphism with Neon Accents
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── DESIGN TOKENS ─────────────────────────────────────────────────────── */
:root {
  /* Background */
  --bg-base: #06060f;
  --bg-surface: rgba(255, 255, 255, 0.03);
  --bg-surface-hover: rgba(255, 255, 255, 0.06);
  --bg-glass: rgba(15, 15, 35, 0.6);
  --bg-glass-strong: rgba(15, 15, 35, 0.85);
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);

  /* Accent Colors */
  --accent-primary: #00d4ff;
  --accent-primary-dim: rgba(0, 212, 255, 0.15);
  --accent-primary-glow: rgba(0, 212, 255, 0.3);
  --accent-secondary: #7c3aed;
  --accent-secondary-dim: rgba(124, 58, 237, 0.15);
  --accent-gradient: linear-gradient(135deg, #00d4ff, #7c3aed);
  --accent-gradient-text: linear-gradient(135deg, #00d4ff, #a78bfa);

  /* Status Colors */
  --color-success: #22c55e;
  --color-success-dim: rgba(34, 197, 94, 0.15);
  --color-warning: #f59e0b;
  --color-warning-dim: rgba(245, 158, 11, 0.15);
  --color-danger: #ef4444;
  --color-danger-dim: rgba(239, 68, 68, 0.15);

  /* Text */
  --text-primary: rgba(255, 255, 255, 0.95);
  --text-secondary: rgba(255, 255, 255, 0.6);
  --text-tertiary: rgba(255, 255, 255, 0.35);
  --text-accent: var(--accent-primary);

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-glass: rgba(255, 255, 255, 0.1);
  --border-focus: var(--accent-primary);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px var(--accent-primary-glow);

  /* Spacing */
  --sidebar-width: 260px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;

  color-scheme: dark;
}

/* ─── RESET & BASE ──────────────────────────────────────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100dvh;
  overflow-x: hidden;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }
ul { list-style: none; }

/* ─── ANIMATED BACKGROUND MESH ──────────────────────────────────────────── */
.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  will-change: transform;
}

.bg-orb--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.25), transparent 70%);
  top: -10%;
  right: -10%;
  animation: orbFloat1 20s ease-in-out infinite;
}

.bg-orb--2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.2), transparent 70%);
  bottom: -10%;
  left: -10%;
  animation: orbFloat2 25s ease-in-out infinite;
}

.bg-orb--3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.12), transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: orbFloat3 30s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-80px, 60px) scale(1.1); }
  66% { transform: translate(40px, -40px) scale(0.9); }
}

@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(60px, -80px) scale(1.15); }
  66% { transform: translate(-50px, 30px) scale(0.85); }
}

@keyframes orbFloat3 {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.2); }
}

@media (prefers-reduced-motion: reduce) {
  .bg-orb { animation: none !important; }
}

/* ─── GLASSMORPHISM ─────────────────────────────────────────────────────── */
.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
}

/* ─── BUTTONS ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 6px 25px rgba(0, 212, 255, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-ghost {
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.btn-ghost:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
  border-color: var(--border-glass);
}

.btn-full { width: 100%; }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }

.btn-loader {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ─── LOGIN SCREEN ──────────────────────────────────────────────────────── */
.login-screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  transition: opacity var(--duration-slow) var(--ease-out), visibility var(--duration-slow);
}

.login-screen[hidden] {
  display: none;
}

.login-card {
  width: 100%;
  max-width: 420px;
  padding: 40px 36px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  animation: cardAppear 0.6s var(--ease-out);
}

@keyframes cardAppear {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.logo-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
}

.logo-icon svg {
  width: 100%;
  height: 100%;
}

.login-title {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--accent-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  outline: none;
}

.form-group input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-primary-dim);
}

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

.password-wrapper {
  position: relative;
}

.password-wrapper input {
  padding-right: 44px;
}

.password-toggle {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  padding: 6px;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast);
}

.password-toggle:hover {
  color: var(--text-secondary);
}

.form-error {
  background: var(--color-danger-dim);
  color: var(--color-danger);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 16px;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

#login-form .btn {
  margin-top: 8px;
}

#login-form .btn + .btn {
  margin-top: 12px;
}

.login-footer {
  margin-top: 24px;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  line-height: 1.5;
}

/* ─── APP LAYOUT ────────────────────────────────────────────────────────── */
.app {
  display: flex;
  min-height: 100dvh;
  position: relative;
  z-index: 1;
}

.app[hidden] { display: none; }

/* ─── SIDEBAR ───────────────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100dvh;
  display: flex;
  flex-direction: column;
  z-index: 50;
  border-right: 1px solid var(--border-subtle);
  border-radius: 0;
  transition: transform var(--duration-normal) var(--ease-out);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 16px;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-brand {
  font-size: 1.1rem;
  font-weight: 800;
  background: var(--accent-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-close {
  display: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  color: var(--text-tertiary);
  transition: background var(--duration-fast);
}

.sidebar-close:hover {
  background: var(--bg-surface-hover);
}

.sidebar-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  margin: 0 12px;
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
  color: #fff;
}

.profile-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.profile-name {
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-reg {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: 'Inter', monospace;
}

.nav-list {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
}

.nav-link:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
}

.nav-link.active {
  background: var(--accent-primary-dim);
  color: var(--accent-primary);
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--accent-primary);
  border-radius: 0 3px 3px 0;
}

.nav-link svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.nav-link.active svg {
  opacity: 1;
}

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--border-subtle);
}

/* ─── CONTENT AREA ──────────────────────────────────────────────────────── */
.content-area {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100dvh;
}

.mobile-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 40;
}

.menu-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast);
}

.menu-btn:hover { background: var(--bg-surface-hover); }

.mobile-title {
  font-weight: 800;
  background: var(--accent-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mobile-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  color: #fff;
}

.page-content {
  padding: 32px;
  max-width: 1200px;
  animation: pageIn var(--duration-normal) var(--ease-out);
}

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

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 45;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.sidebar-overlay[hidden] { display: none; }

/* ─── PAGE HEADER ───────────────────────────────────────────────────────── */
.page-header {
  margin-bottom: 28px;
}

.page-header h2 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* ─── STAT CARDS (Dashboard) ────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

.stat-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-card__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.stat-card__icon--blue { background: var(--accent-primary-dim); color: var(--accent-primary); }
.stat-card__icon--purple { background: var(--accent-secondary-dim); color: var(--accent-secondary); }
.stat-card__icon--green { background: var(--color-success-dim); color: var(--color-success); }
.stat-card__icon--yellow { background: var(--color-warning-dim); color: var(--color-warning); }

.stat-card__value {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.stat-card__label {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ─── GLASS PANEL ───────────────────────────────────────────────────────── */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

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

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

.panel__badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--accent-primary-dim);
  color: var(--accent-primary);
}

/* ─── ATTENDANCE CARDS ──────────────────────────────────────────────────── */
.attendance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.attendance-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all var(--duration-normal) var(--ease-out);
}

.attendance-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.attendance-card__info {
  flex: 1;
  min-width: 0;
}

.attendance-card__name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.attendance-card__code {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: 'Inter', monospace;
  margin-bottom: 8px;
}

.attendance-card__details {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.attendance-card__details span {
  color: var(--text-primary);
  font-weight: 600;
}

/* ─── ATTENDANCE SUMMARY BAR ────────────────────────────────────────────── */
.attendance-summary {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.attendance-summary__ring {
  flex-shrink: 0;
}

.attendance-summary__info {
  flex: 1;
}

.attendance-summary__title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.attendance-summary__value {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.attendance-summary__detail {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ─── MARKS TABLE ───────────────────────────────────────────────────────── */
.marks-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.marks-tab {
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  transition: all var(--duration-fast);
}

.marks-tab:hover {
  background: var(--bg-surface-hover);
}

.marks-tab.active {
  background: var(--accent-primary-dim);
  color: var(--accent-primary);
  border-color: rgba(0, 212, 255, 0.2);
}

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

.marks-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  transition: all var(--duration-normal) var(--ease-out);
}

.marks-item:hover {
  background: var(--bg-card-hover);
}

.marks-item__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.marks-item__name {
  font-weight: 600;
  font-size: 0.9rem;
}

.marks-item__score {
  font-weight: 700;
  font-size: 0.9rem;
}

.marks-item__score--high { color: var(--color-success); }
.marks-item__score--mid { color: var(--color-warning); }
.marks-item__score--low { color: var(--color-danger); }

.marks-item__bar {
  height: 6px;
  background: var(--bg-surface);
  border-radius: 100px;
  overflow: hidden;
}

.marks-item__fill {
  height: 100%;
  border-radius: 100px;
  transition: width 0.8s var(--ease-out);
  background: var(--accent-gradient);
}

.marks-item__fill--high { background: linear-gradient(90deg, #22c55e, #4ade80); }
.marks-item__fill--mid { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.marks-item__fill--low { background: linear-gradient(90deg, #ef4444, #f87171); }

/* ─── TIMETABLE ─────────────────────────────────────────────────────────── */
.timetable-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.timetable-tab {
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  transition: all var(--duration-fast);
}

.timetable-tab:hover { background: var(--bg-surface-hover); }

.timetable-tab.active {
  background: var(--accent-primary-dim);
  color: var(--accent-primary);
  border-color: rgba(0, 212, 255, 0.2);
}

.timetable-tab.today {
  position: relative;
}

.timetable-tab.today::after {
  content: '';
  position: absolute;
  top: 4px;
  right: 4px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
}

.timetable-slots {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.timetable-slot {
  display: flex;
  align-items: stretch;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: all var(--duration-normal) var(--ease-out);
}

.timetable-slot:hover {
  background: var(--bg-card-hover);
}

.timetable-slot--free {
  opacity: 0.4;
}

.timetable-slot__time {
  width: 110px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.timetable-slot__divider {
  width: 3px;
  border-radius: 3px;
  flex-shrink: 0;
}

.timetable-slot__divider--theory { background: var(--accent-primary); }
.timetable-slot__divider--lab { background: var(--accent-secondary); }
.timetable-slot__divider--free { background: var(--border-subtle); }

.timetable-slot__info {
  flex: 1;
}

.timetable-slot__subject {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.timetable-slot__meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.timetable-slot__type {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 100px;
  align-self: flex-start;
}

.timetable-slot__type--theory {
  background: var(--accent-primary-dim);
  color: var(--accent-primary);
}

.timetable-slot__type--lab {
  background: var(--accent-secondary-dim);
  color: var(--accent-secondary);
}

/* ─── COURSES TABLE ─────────────────────────────────────────────────────── */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all var(--duration-normal) var(--ease-out);
}

.course-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.course-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
}

.course-card__name {
  font-weight: 600;
  font-size: 0.95rem;
  flex: 1;
}

.course-card__credits {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--accent-primary-dim);
  color: var(--accent-primary);
  flex-shrink: 0;
  margin-left: 8px;
}

.course-card__code {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  font-family: 'Inter', monospace;
  margin-bottom: 12px;
}

.course-card__meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.course-card__meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ─── CGPA ──────────────────────────────────────────────────────────────── */
.cgpa-hero {
  text-align: center;
  padding: 32px;
  margin-bottom: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.cgpa-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
}

.cgpa-hero__value {
  font-size: 4rem;
  font-weight: 800;
  background: var(--accent-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 8px;
}

.cgpa-hero__label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.cgpa-hero__detail {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-top: 8px;
}

.cgpa-chart {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.cgpa-chart__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.cgpa-bars {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  height: 200px;
  padding: 0 8px;
}

.cgpa-bar {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  height: 100%;
  justify-content: flex-end;
}

.cgpa-bar__fill {
  width: 100%;
  max-width: 60px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: var(--accent-gradient);
  transition: height 0.8s var(--ease-out);
  position: relative;
  min-height: 4px;
}

.cgpa-bar__value {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.cgpa-bar__label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-align: center;
}

.cgpa-semesters {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.cgpa-sem-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--duration-normal) var(--ease-out);
}

.cgpa-sem-card:hover {
  background: var(--bg-card-hover);
}

.cgpa-sem-card__label {
  font-weight: 600;
  font-size: 0.9rem;
}

.cgpa-sem-card__detail {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: 2px;
}

.cgpa-sem-card__gpa {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--accent-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── DASHBOARD SECTIONS ────────────────────────────────────────────────── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

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

.quick-attendance {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quick-attendance__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
}

.quick-attendance__name {
  flex: 1;
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.quick-attendance__bar {
  width: 100px;
  height: 6px;
  background: var(--bg-surface);
  border-radius: 100px;
  overflow: hidden;
  flex-shrink: 0;
}

.quick-attendance__fill {
  height: 100%;
  border-radius: 100px;
  transition: width 0.8s var(--ease-out);
}

.quick-attendance__pct {
  font-size: 0.8rem;
  font-weight: 700;
  width: 40px;
  text-align: right;
  flex-shrink: 0;
}

.next-class {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.next-class__item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px;
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.next-class__time {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-primary);
  width: 100px;
  flex-shrink: 0;
}

.next-class__name {
  font-size: 0.85rem;
  font-weight: 600;
  flex: 1;
}

.next-class__room {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

/* ─── LOADING STATE ─────────────────────────────────────────────────────── */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  gap: 16px;
}

.loading__spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading__text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ─── EMPTY STATE ───────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-tertiary);
}

.empty-state__icon {
  font-size: 3rem;
  margin-bottom: 12px;
  opacity: 0.4;
}

.empty-state__text {
  font-size: 0.9rem;
}

/* ─── RESPONSIVE ────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

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

  .sidebar-close {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .content-area {
    margin-left: 0;
  }

  .mobile-header {
    display: flex;
  }

  .page-content {
    padding: 20px 16px;
  }

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

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

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

  .cgpa-bars {
    gap: 10px;
    height: 160px;
  }

  .cgpa-hero__value {
    font-size: 3rem;
  }

  .timetable-slot {
    flex-wrap: wrap;
    gap: 8px;
  }

  .timetable-slot__time {
    width: auto;
  }

  .attendance-summary {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .login-card {
    padding: 28px 24px;
  }

  .cgpa-semesters {
    grid-template-columns: 1fr;
  }
}