/* ==========================================================
   AIDataHub LMS — Main Stylesheet
   Design: Apple.com-inspired — clean, airy, shadow-light
   Color tokens defined as CSS custom properties
   ========================================================== */

/* ----------------------------------------------------------
   1. DESIGN TOKENS (CSS Variables)
   ---------------------------------------------------------- */
:root {
  --bg:      #FFFFFF;
  --bg2:     #F5F5F7;
  --text:    #1D1D1F;
  --muted:   #6E6E73;
  --accent:  #FF6B35;
  --accent2: #FF9F1C;
  --border:  #D2D2D7;

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

  --shadow-sm: 0 1px 4px rgba(0,0,0,.06), 0 0 0 1px rgba(0,0,0,.03);
  --shadow-md: 0 4px 20px rgba(0,0,0,.08), 0 0 0 1px rgba(0,0,0,.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12);

  --sidebar-w: 220px;
  --topbar-h:  60px;

  --transition: 0.2s cubic-bezier(.25,.46,.45,.94);
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

ul, ol { list-style: none; }

/* ----------------------------------------------------------
   3. TYPOGRAPHY
   ---------------------------------------------------------- */
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 700; letter-spacing: -.025em; line-height: 1.1; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; letter-spacing: -.02em; line-height: 1.2; }
h3 { font-size: 1.25rem; font-weight: 600; letter-spacing: -.01em; }
h4 { font-size: 1rem;    font-weight: 600; }
p  { color: var(--muted); }

.text-accent { color: var(--accent); }
.text-muted  { color: var(--muted); }
.text-sm     { font-size: .875rem; }
.text-xs     { font-size: .75rem; }
.fw-600      { font-weight: 600; }

/* ----------------------------------------------------------
   4. LAYOUT UTILITIES
   ---------------------------------------------------------- */
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 96px 0; }
.section-sm { padding: 60px 0; }

.flex       { display: flex; }
.flex-col   { flex-direction: column; }
.items-center  { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-8   { gap: 8px; }
.gap-12  { gap: 12px; }
.gap-16  { gap: 16px; }
.gap-24  { gap: 24px; }
.gap-32  { gap: 32px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }

/* ----------------------------------------------------------
   5. BUTTONS
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: .9375rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  line-height: 1;
}

/* Accent (orange filled) */
.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 16px rgba(255,107,53,.3);
}
.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(255,107,53,.4);
}
.btn-accent:active { transform: translateY(0); }

/* Outline */
.btn-outline {
  background: var(--bg);
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: #FFF0EB;
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--muted);
  padding: 10px 16px;
}
.btn-ghost:hover { background: var(--bg2); color: var(--text); }

/* Danger */
.btn-danger {
  background: #FFE5E5;
  color: #C0392B;
  border: 1.5px solid #FFBDBD;
}
.btn-danger:hover { background: #FFCDD2; }

/* Size variants */
.btn-sm { padding: 8px 16px; font-size: .875rem; border-radius: var(--radius-sm); }
.btn-lg { padding: 16px 36px; font-size: 1.0625rem; border-radius: var(--radius-lg); }

/* ----------------------------------------------------------
   6. CARDS
   ---------------------------------------------------------- */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.card-flat {
  background: var(--bg2);
  border: none;
  border-radius: var(--radius-md);
  padding: 24px;
}

/* ----------------------------------------------------------
   7. FORM INPUTS
   ---------------------------------------------------------- */
.input, input[type="text"], input[type="email"],
input[type="number"], input[type="password"],
textarea, select {
  width: 100%;
  padding: 12px 16px;
  font-family: inherit;
  font-size: .9375rem;
  color: var(--text);
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  line-height: 1.5;
}
.input:focus, input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255,107,53,.12);
}

textarea { resize: vertical; min-height: 100px; }

label {
  display: block;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.form-group { margin-bottom: 20px; }
.form-hint  { font-size: .8125rem; color: var(--muted); margin-top: 5px; }

/* Checkbox */
input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent); cursor: pointer; }

/* Radio */
input[type="radio"] { accent-color: var(--accent); cursor: pointer; }

/* ----------------------------------------------------------
   8. TAGS / BADGES
   ---------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
}
.badge-accent  { background: #FFF0EB; color: var(--accent); }
.badge-green   { background: #E6F9ED; color: #1A8040; }
.badge-red     { background: #FFE5E5; color: #C0392B; }
.badge-gray    { background: var(--bg2); color: var(--muted); }
.badge-blue    { background: #E8F0FE; color: #2A5BD7; }

/* ----------------------------------------------------------
   9. PROGRESS BAR
   ---------------------------------------------------------- */
.progress-track {
  height: 6px;
  background: var(--bg2);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 999px;
  transition: width .4s ease;
}

/* ----------------------------------------------------------
   10. NAV / TOPBAR
   ---------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--border);
  height: var(--topbar-h);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}
.nav-logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo .logo-dot {
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}
.nav-links { display: flex; align-items: center; gap: 8px; }

/* ----------------------------------------------------------
   11. SIDEBAR (Dashboard + Admin)
   ---------------------------------------------------------- */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 24px 0;
  overflow-y: auto;
  z-index: 50;
}
.sidebar-logo {
  padding: 0 20px 24px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.sidebar-logo .logo-dot { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; display: inline-block; margin-right: 6px; }
.sidebar-nav { padding: 16px 12px; flex: 1; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: .9rem;
  font-weight: 500;
  transition: var(--transition);
  margin-bottom: 2px;
}
.sidebar-nav a:hover { background: var(--bg); color: var(--text); }
.sidebar-nav a.active { background: var(--bg); color: var(--accent); font-weight: 600; }
.sidebar-nav a .nav-icon { font-size: 1rem; width: 20px; text-align: center; flex-shrink: 0; }

/* Subscription info box in sidebar */
.sidebar-sub-box {
  margin: 0 12px;
  padding: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: .8125rem;
}
.sidebar-sub-box .sub-expires { color: var(--muted); margin-bottom: 6px; }
.sidebar-sub-box .sub-days { font-weight: 600; color: var(--accent); margin-bottom: 10px; }

/* ----------------------------------------------------------
   12. MAIN CONTENT (with sidebar offset)
   ---------------------------------------------------------- */
.main-with-sidebar {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg);
}
.main-topbar {
  height: var(--topbar-h);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 32px;
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 40;
}
.main-content { padding: 32px; }

/* ----------------------------------------------------------
   13. TAB PILLS
   ---------------------------------------------------------- */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg2);
  padding: 4px;
  border-radius: var(--radius-lg);
  width: fit-content;
}
.tab-pill {
  padding: 8px 20px;
  border-radius: calc(var(--radius-lg) - 4px);
  font-size: .875rem;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: transparent;
  font-family: inherit;
}
.tab-pill.active {
  background: var(--bg);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ----------------------------------------------------------
   14. VIDEO CARD (horizontal)
   ---------------------------------------------------------- */
.video-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  margin-bottom: 12px;
}
.video-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

.video-thumb {
  width: 120px;
  height: 68px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #fff;
}
.video-card-info { flex: 1; min-width: 0; }
.video-card-title { font-weight: 600; margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.video-card-meta { font-size: .8125rem; color: var(--muted); margin-bottom: 8px; }

/* ----------------------------------------------------------
   15. CHAT BUBBLES
   ---------------------------------------------------------- */
.chat-messages {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 0;
  min-height: 300px;
  max-height: 500px;
  overflow-y: auto;
}
.bubble {
  max-width: 75%;
  padding: 10px 16px;
  border-radius: 18px;
  font-size: .9375rem;
  line-height: 1.5;
}
.bubble-user {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border-bottom-right-radius: 4px;
}
.bubble-bot {
  align-self: flex-start;
  background: var(--bg2);
  color: var(--text);
  border-bottom-left-radius: 4px;
}
.bubble-mentor { background: #EEF2FF; }

.chat-input-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.chat-input-row textarea {
  flex: 1;
  min-height: 44px;
  max-height: 120px;
  border-radius: var(--radius-md);
  resize: none;
}
.chat-input-row .btn { align-self: flex-end; height: 44px; }

/* ----------------------------------------------------------
   16. ALERT / NOTICE BOXES
   ---------------------------------------------------------- */
.alert {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: .9rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.alert-warning { background: #FFFBE6; border: 1.5px solid #FFE066; color: #7A5E00; }
.alert-info    { background: #E8F0FE; border: 1.5px solid #AABFFF; color: #1A3DA7; }
.alert-success { background: #E6F9ED; border: 1.5px solid #6DD89E; color: #1A5C38; }
.alert-error   { background: #FFE5E5; border: 1.5px solid #FFBDBD; color: #8B1A1A; }

/* ----------------------------------------------------------
   17. TABLE
   ---------------------------------------------------------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
thead th {
  background: var(--bg2);
  padding: 12px 16px;
  text-align: left;
  font-size: .8125rem;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}
tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg2); }

/* Avatar initials */
.avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-size: .8125rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ----------------------------------------------------------
   18. TOAST NOTIFICATION
   ---------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: .875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: slideIn .25s ease;
  max-width: 320px;
}
.toast-success { background: #1A8040; color: #fff; }
.toast-error   { background: #C0392B; color: #fff; }
.toast-info    { background: var(--text); color: #fff; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0);   opacity: 1; }
}

/* ----------------------------------------------------------
   19. QR / PAYMENT STYLES
   ---------------------------------------------------------- */
.qr-placeholder {
  width: 200px; height: 200px;
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: .875rem;
  text-align: center;
}

.plan-radio-card {
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}
.plan-radio-card:has(input:checked),
.plan-radio-card.selected {
  border-color: var(--accent);
  background: #FFF0EB;
}
.plan-radio-card input[type="radio"] { margin-right: 10px; }
.plan-price { font-size: 1.5rem; font-weight: 700; color: var(--accent); margin-top: 4px; }

/* ----------------------------------------------------------
   20. HERO SECTION
   ---------------------------------------------------------- */
.hero {
  padding: 120px 0 100px;
  text-align: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--accent);
  background: #FFF0EB;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero h1 { max-width: 800px; margin: 0 auto 20px; }
.hero .subtitle { font-size: 1.125rem; max-width: 560px; margin: 0 auto 40px; }
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ----------------------------------------------------------
   21. STATS ROW
   ---------------------------------------------------------- */
.stats-row {
  display: flex;
  justify-content: center;
  gap: 60px;
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat-item { text-align: center; }
.stat-number { font-size: 2rem; font-weight: 700; color: var(--text); }
.stat-label  { font-size: .875rem; color: var(--muted); margin-top: 4px; }

/* ----------------------------------------------------------
   22. PRICING CARD
   ---------------------------------------------------------- */
.pricing-card {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}
.pricing-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.pricing-card.featured { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(255,107,53,.1); }
.pricing-card .badge-featured {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff;
  padding: 4px 16px; border-radius: 999px; font-size: .8125rem; font-weight: 600;
}
.pricing-price { font-size: 2.25rem; font-weight: 700; color: var(--text); margin: 16px 0 4px; }
.pricing-period { font-size: .875rem; color: var(--muted); }
.pricing-features { text-align: left; margin: 24px 0; display: flex; flex-direction: column; gap: 10px; }
.pricing-feature-item { display: flex; align-items: center; gap: 10px; font-size: .9rem; }
.pricing-feature-item::before { content: '✓'; color: var(--accent); font-weight: 700; flex-shrink: 0; }

/* ----------------------------------------------------------
   23. FEATURE CARD
   ---------------------------------------------------------- */
.feature-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: #FFF0EB;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

/* ----------------------------------------------------------
   24. TESTIMONIAL CARD
   ---------------------------------------------------------- */
.testimonial-card {
  background: var(--bg2);
  border-radius: var(--radius-lg);
  padding: 28px;
}
.testimonial-card .stars { color: #FFB800; letter-spacing: 2px; margin-bottom: 12px; }
.testimonial-author {
  display: flex; align-items: center; gap: 12px; margin-top: 20px;
}
.testimonial-author .avatar-sm {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: .875rem; font-weight: 700;
}

/* ----------------------------------------------------------
   25. FOOTER
   ---------------------------------------------------------- */
footer {
  background: var(--text);
  color: rgba(255,255,255,.7);
  padding: 48px 0 32px;
}
footer .footer-logo { color: #fff; font-size: 1.125rem; font-weight: 700; margin-bottom: 8px; }
footer a { color: rgba(255,255,255,.6); transition: color .2s; }
footer a:hover { color: #fff; }
.footer-bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: .8125rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* ----------------------------------------------------------
   26. WATCH PAGE
   ---------------------------------------------------------- */
.watch-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}
.watch-main { flex: 1; overflow-y: auto; }
.watch-topbar {
  height: 56px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  background: var(--bg);
  position: sticky; top: 0; z-index: 10;
}
.watch-video-wrap { padding: 24px; }
video { border-radius: var(--radius-lg); }
.watch-playlist {
  width: 300px;
  flex-shrink: 0;
  border-left: 1px solid var(--border);
  overflow-y: auto;
  background: var(--bg2);
}
.playlist-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background .15s;
}
.playlist-item:hover { background: var(--bg); }
.playlist-item.current { background: #FFF0EB; border-left: 3px solid var(--accent); }
.playlist-item .play-thumb {
  width: 64px; height: 36px;
  border-radius: 6px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: .875rem; color: #fff;
}

/* ----------------------------------------------------------
   27. ADMIN-SPECIFIC
   ---------------------------------------------------------- */
.admin-sidebar { background: #FAFAFA; }
.admin-sidebar .sidebar-nav a.active { background: #FFF0EB; color: var(--accent); }

.stat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.stat-card .sc-value { font-size: 2rem; font-weight: 700; }
.stat-card .sc-label { font-size: .875rem; color: var(--muted); margin-top: 4px; }
.stat-card.accent-card .sc-value { color: var(--accent); }

/* Mentor thread list */
.thread-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background .15s;
}
.thread-item:hover { background: var(--bg2); }
.thread-item.active { background: #FFF0EB; border-left: 3px solid var(--accent); }
.thread-preview { font-size: .8125rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ----------------------------------------------------------
   28. SECTION LABELS
   ---------------------------------------------------------- */
.section-label {
  font-size: .875rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 12px;
}
.section-headline { margin-bottom: 16px; }
.section-sub { font-size: 1.0625rem; max-width: 560px; }

/* ----------------------------------------------------------
   29. DIVIDER
   ---------------------------------------------------------- */
.divider { height: 1px; background: var(--border); margin: 0; border: none; }

/* ----------------------------------------------------------
   30. RESPONSIVE
   ---------------------------------------------------------- */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-row { gap: 32px; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .section { padding: 64px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stats-row { flex-wrap: wrap; gap: 24px; }
  .sidebar { display: none; }
  .main-with-sidebar { margin-left: 0; }
  .watch-playlist { display: none; }
  .hero { padding: 80px 0 60px; }
}