/* ══════════════════════════════════════════════════════════════════
   Tamil Literature HUB — Premium Landing Page CSS
   2026 Design System · Amber/Gold Heritage Theme
   Full Dark + Light Theme Support
   THERABApps
══════════════════════════════════════════════════════════════════ */

/* ─── DARK THEME TOKENS (default) ──────────────────────────────── */
:root {
  /* ── Backgrounds ── */
  --bg-primary:      #0c0a08;
  --bg-secondary:    #111009;
  --bg-card:         rgba(245,158,11,0.05);
  --bg-card-solid:   #161208;
  --bg-glass:        rgba(12,10,8,0.88);
  --bg-icon:         rgba(245,158,11,0.12);
  --bg-icon-neutral: rgba(255,255,255,0.07);
  --bg-input:        rgba(255,255,255,0.05);

  /* ── Borders ── */
  --border:          rgba(245,158,11,0.14);
  --border-glow:     rgba(245,158,11,0.45);
  --border-subtle:   rgba(255,255,255,0.07);

  /* ── Text ── */
  --text-primary:    #f5f0e8;
  --text-secondary:  #c4b89a;
  --text-muted:      #6b5e45;
  --text-on-gold:    #ffffff;

  /* ── Brand Accents ── */
  --accent-gold:     #f59e0b;
  --accent-gold2:    #d97706;
  --accent-gold3:    #fbbf24;
  --accent-copper:   #c8841a;
  --accent-saffron:  #f97316;
  --accent-crimson:  #ef4444;
  --accent-violet:   #8b5cf6;
  --accent-emerald:  #10b981;
  --accent-sky:      #06b6d4;

  /* ── Gradients ── */
  --grad-primary:    linear-gradient(135deg, #f59e0b 0%, #c8841a 50%, #fbbf24 100%);
  --grad-hero:       linear-gradient(160deg, #0c0a08 0%, #1a1206 50%, #120e06 100%);
  --grad-cinematic:  linear-gradient(160deg, #1a0e00 0%, #0c0608 50%, #0a0800 100%);
  --grad-download:   linear-gradient(160deg, #1a0c00 0%, #0c0a08 60%, #0d0800 100%);

  /* ── Shadows ── */
  --shadow-glow:     0 0 60px rgba(245,158,11,0.20);
  --shadow-card:     0 8px 32px rgba(0,0,0,0.5);
  --shadow-float:    0 8px 24px rgba(0,0,0,0.40);
  --shadow-nav:      0 4px 24px rgba(0,0,0,0.40);
  --shadow-phone:    0 40px 80px rgba(245,158,11,0.25);
  --shadow-story:    0 30px 60px rgba(245,158,11,0.20);
  --shadow-inset:    inset 0 1px 0 rgba(255,255,255,0.07);

  /* ── Phone mockup ── */
  --phone-notch-bg:  rgba(255,255,255,0.08);

  /* ── Heritage / cinematic sections ── */
  --heritage-text:   #f5f0e8;
  --heritage-sub:    #c4b89a;

  /* ── Radii ── */
  --radius-sm:   8px;
  --radius-md:   16px;
  --radius-lg:   24px;
  --radius-xl:   32px;
  --radius-full: 9999px;

  /* ── Transitions ── */
  --transition:        all 0.3s cubic-bezier(0.4,0,0.2,1);
  --transition-bounce: all 0.4s cubic-bezier(0.34,1.56,0.64,1);

  /* ── Fonts ── */
  --font-display: 'Outfit', sans-serif;
  --font-body:    'Plus Jakarta Sans', sans-serif;
  --font-tamil:   'Noto Serif Tamil', serif;

  --nav-h: 72px;
}

/* ─── LIGHT THEME TOKENS ────────────────────────────────────────── */
[data-theme="light"] {
  /* ── Backgrounds ── */
  --bg-primary:      #fef9f0;
  --bg-secondary:    #ffffff;
  --bg-card:         rgba(200,132,26,0.06);
  --bg-card-solid:   #fff8ec;
  --bg-glass:        rgba(254,249,240,0.94);
  --bg-icon:         rgba(200,132,26,0.12);
  --bg-icon-neutral: rgba(0,0,0,0.05);
  --bg-input:        rgba(0,0,0,0.04);

  /* ── Borders ── */
  --border:          rgba(0,0,0,0.09);
  --border-glow:     rgba(200,132,26,0.40);
  --border-subtle:   rgba(0,0,0,0.07);

  /* ── Text ── */
  --text-primary:    #1a0e00;
  --text-secondary:  #4a3010;
  --text-muted:      #8a6a30;
  --text-on-gold:    #ffffff;

  /* ── Brand Accents (slightly deeper for contrast on light bg) ── */
  --accent-gold:     #b87514;
  --accent-gold2:    #a06010;
  --accent-gold3:    #d4950e;
  --accent-copper:   #9a6510;
  --accent-saffron:  #c45c0a;
  --accent-crimson:  #dc2626;
  --accent-violet:   #7c3aed;
  --accent-emerald:  #059669;
  --accent-sky:      #0284c7;

  /* ── Gradients ── */
  --grad-primary:    linear-gradient(135deg, #c8841a 0%, #a06010 50%, #d4950e 100%);
  --grad-hero:       linear-gradient(160deg, #fef3dc 0%, #fffaee 50%, #fef9f0 100%);
  --grad-cinematic:  linear-gradient(160deg, #fef0d0 0%, #fdf5e4 50%, #fef9f0 100%);
  --grad-download:   linear-gradient(160deg, #fdedc8 0%, #fef5e0 60%, #fef9f0 100%);

  /* ── Shadows ── */
  --shadow-glow:     0 0 60px rgba(200,132,26,0.16);
  --shadow-card:     0 4px 20px rgba(0,0,0,0.10);
  --shadow-float:    0 6px 20px rgba(0,0,0,0.12);
  --shadow-nav:      0 4px 24px rgba(0,0,0,0.10);
  --shadow-phone:    0 24px 60px rgba(200,132,26,0.18);
  --shadow-story:    0 20px 50px rgba(200,132,26,0.15);
  --shadow-inset:    inset 0 1px 0 rgba(0,0,0,0.04);

  /* ── Phone mockup ── */
  --phone-notch-bg:  rgba(0,0,0,0.08);

  /* ── Heritage / cinematic sections ── */
  --heritage-text:   #1a0e00;
  --heritage-sub:    #4a3010;
}

/* ─── RESET & BASE ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
img { max-width: 100%; display: block; }

/* ─── CUSTOM SCROLLBAR ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent-gold); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-copper); }

/* ─── SELECTION ─────────────────────────────────────────────────── */
::selection { background: rgba(200,132,26,0.28); color: var(--text-primary); }

/* ─── FOCUS VISIBLE ─────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ─── SCREEN READER ONLY ────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0; white-space: nowrap;
}

/* ─── UTILITIES ─────────────────────────────────────────────────── */
.gradient-text {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ══════════════════════════════════════════════════════════════════
   PRELOADER
══════════════════════════════════════════════════════════════════ */
.tlh-preloader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.tlh-preloader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-inner { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.preloader-logo {
  width: 72px; height: 72px; border-radius: var(--radius-lg);
  background: var(--grad-primary);
  display: flex; align-items: center; justify-content: center;
  animation: preloaderPulse 1.5s ease-in-out infinite;
}
.preloader-tamil { font-family: var(--font-tamil); font-size: 36px; font-weight: 700; color: #fff; }
@keyframes preloaderPulse {
  0%,100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(200,132,26,0.5); }
  50%      { transform: scale(1.08); box-shadow: 0 0 0 20px rgba(200,132,26,0); }
}
.preloader-bar-wrap {
  width: 200px; height: 3px; background: var(--border); border-radius: 2px; overflow: hidden;
}
.preloader-bar {
  height: 100%; background: var(--grad-primary); border-radius: 2px;
  animation: preloaderFill 1.8s ease-out forwards;
}
@keyframes preloaderFill { 0% { width: 0%; } 100% { width: 100%; } }
.preloader-text { font-family: var(--font-display); font-size: 16px; font-weight: 700; color: var(--text-primary); }
.preloader-sub  { font-size: 12px; color: var(--text-muted); letter-spacing: 1px; }

/* ══════════════════════════════════════════════════════════════════
   SCROLL PROGRESS
══════════════════════════════════════════════════════════════════ */
.tlh-scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: var(--grad-primary); z-index: 9998; transition: width 0.1s linear;
}

/* ══════════════════════════════════════════════════════════════════
   CUSTOM CURSOR
══════════════════════════════════════════════════════════════════ */
.cursor-dot, .cursor-ring {
  pointer-events: none; position: fixed; z-index: 9997;
  border-radius: 50%; transform: translate(-50%,-50%); transition: opacity 0.3s;
}
.cursor-dot  { width: 8px;  height: 8px;  background: var(--accent-gold); }
.cursor-ring { width: 36px; height: 36px; border: 1.5px solid rgba(200,132,26,0.5); background: transparent; }
@media (hover: none), (pointer: coarse) { .cursor-dot, .cursor-ring { display: none; } }

/* ══════════════════════════════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════════════════════════════ */
.tlh-nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000; height: var(--nav-h); transition: var(--transition);
}
.tlh-nav.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-nav);
}
.nav-container {
  max-width: 1280px; margin: 0 auto; padding: 0 32px;
  height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.nav-logo       { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-logo-icon  {
  width: 40px; height: 40px; background: var(--grad-primary);
  border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.logo-tamil          { font-family: var(--font-tamil); font-size: 20px; font-weight: 700; color: #fff; }
.nav-logo-text-wrap  { display: flex; flex-direction: column; }
.nav-logo-name       { font-family: var(--font-display); font-size: 16px; font-weight: 800; line-height: 1.1; color: var(--text-primary); }
.nav-logo-by         { font-size: 10px; color: var(--text-muted); letter-spacing: 0.5px; }
.nav-links      { display: flex; align-items: center; gap: 4px; }
.nav-link {
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  padding: 8px 14px; border-radius: var(--radius-full); transition: var(--transition);
}
.nav-link:hover         { color: var(--text-primary); background: var(--bg-card); }
.nav-link.active        { color: var(--accent-gold); background: var(--bg-card); }
.nav-right      { display: flex; align-items: center; gap: 12px; }
.theme-toggle {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-secondary); display: flex; align-items: center; justify-content: center;
  font-size: 15px; transition: var(--transition);
}
.theme-toggle:hover { border-color: var(--accent-gold); color: var(--accent-gold); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 20px; background: var(--grad-primary); color: var(--text-on-gold);
  border-radius: var(--radius-full); font-size: 13px; font-weight: 700;
  transition: var(--transition-bounce); box-shadow: 0 4px 20px rgba(200,132,26,0.35);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(200,132,26,0.50); }
.hamburger {
  display: none; flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 38px; height: 38px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0 8px;
}
.hamburger span { display: block; width: 18px; height: 2px; background: var(--text-primary); border-radius: 1px; transition: var(--transition); }

/* ── Mobile Drawer ── */
.mobile-drawer {
  position: fixed; inset: 0; z-index: 1001; background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  transform: translateX(100%); transition: transform 0.45s cubic-bezier(0.4,0,0.2,1);
}
.mobile-drawer.open  { transform: translateX(0); }
.drawer-inner { display: flex; flex-direction: column; align-items: center; gap: 28px; width: 100%; padding: 40px; }
.drawer-close {
  position: absolute; top: 20px; right: 24px; width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-primary); font-size: 18px; transition: var(--transition);
}
.drawer-close:hover { background: var(--bg-icon); }
.drawer-links { display: flex; flex-direction: column; align-items: center; gap: 4px; width: 100%; }
.drawer-link {
  font-family: var(--font-display); font-size: 26px; font-weight: 700; color: var(--text-primary);
  padding: 10px 0; display: block; text-align: center;
  transform: translateX(40px); opacity: 0; transition: var(--transition);
}
.mobile-drawer.open .drawer-link                    { transform: translateX(0); opacity: 1; }
.mobile-drawer.open .drawer-link:nth-child(1)       { transition-delay: 0.08s; }
.mobile-drawer.open .drawer-link:nth-child(2)       { transition-delay: 0.14s; }
.mobile-drawer.open .drawer-link:nth-child(3)       { transition-delay: 0.20s; }
.mobile-drawer.open .drawer-link:nth-child(4)       { transition-delay: 0.26s; }
.mobile-drawer.open .drawer-link:nth-child(5)       { transition-delay: 0.32s; }
.mobile-drawer.open .drawer-link:nth-child(6)       { transition-delay: 0.38s; }
.drawer-link:hover { color: var(--accent-gold); }
.drawer-cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 36px; background: var(--grad-primary); color: var(--text-on-gold);
  border-radius: var(--radius-full); font-weight: 700; font-size: 16px;
}

/* ══════════════════════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════════════════════ */
.hero-section {
  position: relative; min-height: 100vh; background: var(--grad-hero);
  overflow: hidden; display: flex; align-items: center;
}
.hero-blobs { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.blob { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.45; }
.blob-1 { width: 600px; height: 600px; top: -150px; left: -150px;
  background: radial-gradient(circle, rgba(200,132,26,0.45), transparent 70%);
  animation: blobFloat 14s ease-in-out infinite; }
.blob-2 { width: 500px; height: 500px; bottom: -100px; right: -100px;
  background: radial-gradient(circle, rgba(200,132,26,0.30), transparent 70%);
  animation: blobFloat 16s ease-in-out infinite reverse; }
.blob-3 { width: 350px; height: 350px; top: 20%; right: 5%;
  background: radial-gradient(circle, rgba(200,80,20,0.20), transparent 70%);
  animation: blobFloat 11s ease-in-out infinite 2s; }
.blob-4 { width: 300px; height: 300px; bottom: 20%; left: 3%;
  background: radial-gradient(circle, rgba(100,60,200,0.12), transparent 70%);
  animation: blobFloat 18s ease-in-out infinite 1s; }
@keyframes blobFloat {
  0%,100% { transform: translate(0,0) scale(1); }
  33%      { transform: translate(30px,-20px) scale(1.05); }
  66%      { transform: translate(-20px,20px) scale(0.95); }
}
.hero-dotgrid {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(200,132,26,0.14) 1px, transparent 1px);
  background-size: 36px 36px; pointer-events: none; z-index: 0;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}
.hero-manuscript-bg {
  position: absolute; inset: 0; pointer-events: none; z-index: 0; opacity: 0.03;
  background-image: repeating-linear-gradient(0deg, rgba(200,132,26,0.5) 0, rgba(200,132,26,0.5) 1px, transparent 1px, transparent 28px);
}
.particles-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 1; }
.hero-container {
  position: relative; z-index: 2; max-width: 1280px; margin: 0 auto;
  padding: calc(var(--nav-h) + 60px) 32px 80px;
  display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 64px; width: 100%;
}
.hero-content { display: flex; flex-direction: column; gap: 24px; }
.tlh-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.30);
  border-radius: var(--radius-full); font-size: 13px; font-weight: 600; color: var(--accent-gold); width: fit-content;
}
.hero-title {
  font-family: var(--font-display); font-size: clamp(40px,5.5vw,72px);
  font-weight: 900; line-height: 1.08; letter-spacing: -2px; color: var(--text-primary);
}
.hero-tagline-secondary { font-size: 15px; color: var(--accent-gold); font-style: italic; font-weight: 500; }
.hero-sub { font-size: clamp(14px,1.6vw,17px); color: var(--text-secondary); max-width: 480px; line-height: 1.8; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }

/* Primary CTA */
.tlh-btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 36px; background: var(--grad-primary); color: var(--text-on-gold);
  border-radius: var(--radius-full); font-weight: 700; font-size: 16px;
  font-family: var(--font-body); transition: var(--transition-bounce);
  box-shadow: 0 8px 32px rgba(200,132,26,0.40); white-space: nowrap;
}
.tlh-btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 48px rgba(200,132,26,0.55); }

/* Secondary CTA */
.tlh-btn-secondary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 36px; background: var(--bg-card); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: var(--radius-full);
  font-weight: 600; font-size: 16px; font-family: var(--font-body);
  backdrop-filter: blur(10px); transition: var(--transition-bounce); white-space: nowrap;
}
.tlh-btn-secondary:hover { border-color: var(--accent-gold); color: var(--accent-gold); transform: translateY(-3px); }

/* Stats row */
.hero-stats { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-top: 8px; }
.stat-item  { display: flex; flex-direction: column; gap: 2px; }
.stat-value { font-family: var(--font-display); font-size: 20px; font-weight: 800; color: var(--text-primary); }
.stat-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.stat-divider { width: 1px; height: 36px; background: var(--border); flex-shrink: 0; }

/* ── Phone Mockup ── */
.hero-visual { position: relative; display: flex; align-items: center; justify-content: center; padding: 60px 40px; }
.tlh-phone-wrap { animation: phoneFloat 4s ease-in-out infinite; position: relative; z-index: 3; }
@keyframes phoneFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
.tlh-phone {
  width: 290px; height: 580px; background: var(--bg-secondary);
  border-radius: 44px; border: 2px solid var(--border-glow);
  box-shadow: var(--shadow-phone), var(--shadow-inset);
  overflow: hidden; display: flex; flex-direction: column; align-items: center;
}
.phone-status-bar {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px 6px; flex-shrink: 0;
}
.phone-notch      { width: 80px; height: 6px; background: var(--phone-notch-bg); border-radius: 3px; }
.phone-status-icons { display: flex; gap: 6px; font-size: 9px; color: var(--text-muted); }
.phone-app-header {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 4px 18px 10px; flex-shrink: 0;
}
.phone-app-title   { font-family: var(--font-display); font-size: 13px; font-weight: 700; color: var(--accent-gold); }
.phone-search-icon { font-size: 13px; color: var(--text-muted); }
.phone-lit-hero {
  width: calc(100% - 24px); margin: 0 12px;
  background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.22);
  border-radius: 14px; padding: 14px; flex-shrink: 0;
}
.phone-lit-badge {
  display: inline-block; padding: 3px 10px; background: var(--bg-icon);
  border-radius: var(--radius-full); font-size: 9px; font-weight: 700; color: var(--accent-gold); margin-bottom: 8px;
}
.phone-kural-tamil { font-family: var(--font-tamil); font-size: 12px; line-height: 1.8; color: var(--text-primary); font-weight: 600; }
.phone-kural-num   { font-size: 9px; color: var(--text-muted); margin-top: 4px; }
.phone-category-grid {
  width: calc(100% - 24px); display: grid; grid-template-columns: repeat(4,1fr);
  gap: 6px; margin: 10px 12px 0; flex-shrink: 0;
}
.phone-cat {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 8px 4px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; font-size: 8px; color: var(--text-secondary);
  cursor: pointer; transition: var(--transition);
}
.phone-cat i       { font-size: 14px; }
.phone-cat.active  { border-color: var(--accent-gold); color: var(--accent-gold); background: var(--bg-icon); }
.phone-continue { width: calc(100% - 24px); margin: 10px 12px 0; flex-shrink: 0; }
.phone-continue-header { display: flex; justify-content: space-between; font-size: 10px; color: var(--text-muted); margin-bottom: 6px; }
.phone-book-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px;
}
.phone-book-icon {
  width: 28px; height: 28px; border-radius: 8px; background: var(--bg-icon);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: var(--accent-gold); flex-shrink: 0;
}
.phone-book-info    { flex: 1; }
.phone-book-title   { font-size: 10px; font-weight: 600; color: var(--text-primary); }
.phone-progress-mini { width: 100%; height: 3px; background: var(--border); border-radius: 2px; margin-top: 3px; }
.phone-progress-fill { height: 100%; background: var(--grad-primary); border-radius: 2px; }
.phone-book-pct     { font-size: 9px; color: var(--accent-gold); font-weight: 600; flex-shrink: 0; }
.phone-bottom-nav {
  width: 100%; display: flex; justify-content: space-around;
  padding: 10px 8px 14px; margin-top: auto; border-top: 1px solid var(--border); flex-shrink: 0;
}
.phone-nav-btn        { display: flex; flex-direction: column; align-items: center; gap: 3px; color: var(--text-muted); transition: var(--transition); flex: 1; }
.phone-nav-btn.active { color: var(--accent-gold); }
.phone-nav-btn i      { font-size: 14px; }
.phone-nav-btn span   { font-size: 8px; font-weight: 500; }

/* Floating cards */
.float-card {
  position: absolute; display: flex; align-items: center; gap: 8px;
  padding: 10px 16px; background: var(--bg-glass); border: 1px solid var(--border);
  backdrop-filter: blur(12px); border-radius: var(--radius-md);
  font-size: 12px; font-weight: 600; color: var(--text-primary); white-space: nowrap;
  z-index: 4; box-shadow: var(--shadow-float); animation: floatCard 4s ease-in-out infinite;
}
.float-card i      { font-size: 16px; }
.float-card-1      { top: 30px; left: -10px; animation-delay: 0s;   }
.float-card-1 i    { color: var(--accent-gold); }
.float-card-2      { top: 30px; right: -10px; animation-delay: 0.8s; }
.float-card-2 i    { color: var(--accent-violet); }
.float-card-3      { bottom: 90px; left: -20px; animation-delay: 1.6s; }
.float-card-3 i    { color: var(--accent-saffron); }
.float-card-4      { bottom: 90px; right: -20px; animation-delay: 2.4s; }
.float-card-4 i    { color: var(--accent-emerald); }
@keyframes floatCard { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ══════════════════════════════════════════════════════════════════
   SHARED SECTION STYLES
══════════════════════════════════════════════════════════════════ */
.section-container { max-width: 1280px; margin: 0 auto; padding: 0 32px; width: 100%; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-eyebrow {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--accent-gold); background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.25);
  padding: 5px 14px; border-radius: var(--radius-full); margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display); font-size: clamp(30px,4.2vw,54px);
  font-weight: 900; line-height: 1.1; letter-spacing: -1.5px; color: var(--text-primary); margin-bottom: 16px;
}
.section-sub { font-size: 17px; color: var(--text-secondary); max-width: 520px; margin: 0 auto; }

/* ══════════════════════════════════════════════════════════════════
   BRAND SECTION
══════════════════════════════════════════════════════════════════ */
.section-brand   { padding: 100px 0; background: var(--bg-secondary); }
.brand-grid      { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.brand-content   { display: flex; flex-direction: column; gap: 24px; }
.brand-content .section-eyebrow { text-align: left; }
.brand-content .section-title   { text-align: left; margin-bottom: 0; }
.brand-desc      { font-size: 17px; color: var(--text-secondary); line-height: 1.8; }
.brand-pillars   { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 8px; }
.brand-pillar {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md);
  transition: var(--transition);
}
.brand-pillar:hover { border-color: var(--border-glow); transform: translateY(-4px); }
.pillar-icon {
  width: 40px; height: 40px; background: var(--bg-icon); border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-gold); font-size: 16px; flex-shrink: 0;
}
.brand-pillar h4 { font-size: 13px; font-weight: 700; color: var(--text-primary); margin-bottom: 2px; }
.brand-pillar p  { font-size: 12px; color: var(--text-secondary); }
.brand-visual    { display: flex; align-items: center; justify-content: center; }
.brand-devices   { position: relative; width: 360px; height: 380px; }
.brand-device {
  position: absolute; border-radius: 20px; overflow: hidden;
  border: 1.5px solid var(--border); background: var(--bg-primary);
  box-shadow: var(--shadow-card);
}
.brand-device-main  { width: 200px; height: 320px; left: 50%; top: 50%; transform: translate(-50%,-50%); z-index: 3; border-radius: 24px; }
.brand-device-side  { width: 130px; height: 200px; z-index: 2; }
.brand-device-left  { left: 0; top: 50%; transform: translateY(-50%) rotate(-5deg); }
.brand-device-right { right: 0; top: 50%; transform: translateY(-50%) rotate(5deg); }
.bd-screen           { display: flex; flex-direction: column; height: 100%; padding: 10px 12px; }
.bd-header           { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.bd-title-text       { font-family: var(--font-display); font-size: 12px; font-weight: 700; color: var(--accent-gold); }
.bd-header i         { font-size: 12px; color: var(--accent-gold); }
.bd-kural-card {
  flex: 1; background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.18);
  border-radius: 10px; padding: 10px; display: flex; flex-direction: column; justify-content: center; gap: 6px;
}
.bd-kural   { font-family: var(--font-tamil); font-size: 10px; color: var(--text-primary); line-height: 1.8; font-weight: 600; }
.bd-chapter { font-size: 9px; color: var(--text-muted); }
.bd-nav     { display: flex; justify-content: space-around; margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--border); }
.bd-nav i   { font-size: 14px; color: var(--text-muted); }
.bd-nav i:first-child { color: var(--accent-gold); }
.bd-screen-learn { padding: 10px; gap: 8px; }
.bd-learn-header  { font-family: var(--font-display); font-size: 10px; font-weight: 700; color: var(--accent-gold); }
.bd-learn-items   { display: flex; flex-direction: column; gap: 6px; margin-top: 4px; }
.bd-learn-item    { display: flex; align-items: center; gap: 6px; font-size: 9px; color: var(--text-secondary); }
.bd-learn-item i  { color: var(--accent-emerald); font-size: 10px; }
.bd-screen-spirit { justify-content: center; align-items: center; gap: 6px; }
.bd-spirit-icon   { font-size: 28px; color: var(--accent-violet); }
.bd-spirit-title  { font-family: var(--font-display); font-size: 10px; font-weight: 700; color: var(--text-primary); }
.bd-spirit-sub    { font-family: var(--font-tamil); font-size: 10px; color: var(--accent-gold); }
.brand-ornament   { position: absolute; inset: 0; pointer-events: none; z-index: 1; }
.ornament-ring {
  position: absolute; border-radius: 50%; border: 1px solid rgba(200,132,26,0.10);
  top: 50%; left: 50%; transform: translate(-50%,-50%); animation: ringPulse 4s ease-in-out infinite;
}
.ornament-ring-1 { width: 280px; height: 280px; animation-delay: 0s;   }
.ornament-ring-2 { width: 340px; height: 340px; animation-delay: 0.8s; }
.ornament-ring-3 { width: 400px; height: 400px; animation-delay: 1.6s; }
@keyframes ringPulse {
  0%,100% { opacity: 0.35; transform: translate(-50%,-50%) scale(1);    }
  50%      { opacity: 0.70; transform: translate(-50%,-50%) scale(1.02); }
}

/* ══════════════════════════════════════════════════════════════════
   MISSION
══════════════════════════════════════════════════════════════════ */
.section-mission { padding: 100px 0; background: var(--bg-primary); }
.mission-journey { display: flex; align-items: flex-start; justify-content: center; flex-wrap: wrap; }
.journey-step {
  flex: 1; min-width: 220px; max-width: 300px;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  padding: 32px 24px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); text-align: center; transition: var(--transition);
}
.journey-step:hover { border-color: var(--border-glow); transform: translateY(-6px); box-shadow: var(--shadow-glow); }
.journey-icon {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.22);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: var(--accent-gold);
}
.journey-step h3 { font-family: var(--font-display); font-size: 20px; font-weight: 800; color: var(--text-primary); }
.journey-step p  { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.journey-arrow {
  display: flex; align-items: center; padding: 0 16px;
  font-size: 20px; color: var(--accent-gold); opacity: 0.6; align-self: center;
  animation: arrowPulse 2s ease-in-out infinite;
}
@keyframes arrowPulse { 0%,100% { transform: translateX(0); opacity: 0.6; } 50% { transform: translateX(6px); opacity: 1; } }

/* ══════════════════════════════════════════════════════════════════
   COLLECTION CAROUSEL
══════════════════════════════════════════════════════════════════ */
.section-collection      { padding: 100px 0; background: var(--bg-secondary); }
.collection-carousel-wrap { position: relative; }
.collection-carousel {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px,1fr)); gap: 24px;
}
.collection-card {
  position: relative; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px; display: flex; flex-direction: column; gap: 14px;
  overflow: hidden; transition: var(--transition); cursor: default;
}
.collection-card:hover { transform: translateY(-8px); border-color: var(--border-glow); box-shadow: var(--shadow-glow); }
.cc-glow {
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad-primary); opacity: 0; transition: var(--transition);
}
.collection-card:hover .cc-glow { opacity: 1; }
.cc-icon-wrap {
  width: 64px; height: 64px; border-radius: var(--radius-md);
  background: var(--bg-icon-neutral); border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; color: var(--cc-color, var(--accent-gold)); transition: var(--transition-bounce);
}
.collection-card:hover .cc-icon-wrap { transform: rotate(-8deg) scale(1.1); }
.cc-category { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-muted); }
.cc-title    { font-family: var(--font-display); font-size: 22px; font-weight: 900; color: var(--text-primary); }
.cc-tamil    { font-family: var(--font-tamil); font-size: 16px; color: var(--accent-gold); font-weight: 600; }
.cc-desc     { font-size: 14px; color: var(--text-secondary); line-height: 1.7; flex: 1; }
.cc-features { display: flex; flex-direction: column; gap: 7px; }
.cc-features li   { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-secondary); }
.cc-features li i { color: var(--accent-gold); font-size: 10px; flex-shrink: 0; }
.cc-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; background: var(--grad-primary); color: var(--text-on-gold);
  border-radius: var(--radius-full); font-size: 13px; font-weight: 700;
  transition: var(--transition-bounce); box-shadow: 0 4px 16px rgba(200,132,26,0.30);
  width: fit-content;
}
.cc-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(200,132,26,0.48); }
.carousel-nav { display: flex; align-items: center; justify-content: center; gap: 16px; margin-top: 40px; }
.carousel-btn {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 16px; transition: var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.carousel-btn:hover { border-color: var(--accent-gold); color: var(--accent-gold); }
.carousel-dots { display: flex; gap: 8px; }
.carousel-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--border); transition: var(--transition); cursor: pointer;
}
.carousel-dot.active { background: var(--accent-gold); transform: scale(1.3); }

/* ══════════════════════════════════════════════════════════════════
   FEATURES GRID
══════════════════════════════════════════════════════════════════ */
.section-features { padding: 100px 0; background: var(--bg-primary); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); gap: 20px; }
.feat-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; display: flex; flex-direction: column; gap: 12px; transition: var(--transition); cursor: default;
}
.feat-card:hover { transform: translateY(-6px); border-color: var(--border-glow); box-shadow: var(--shadow-glow); }
.feat-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  background: var(--bg-icon-neutral); border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; color: var(--fi-color, var(--accent-gold)); transition: var(--transition-bounce); flex-shrink: 0;
}
.feat-card:hover .feat-icon { transform: rotate(-8deg) scale(1.1); }
.feat-card h3 { font-family: var(--font-display); font-size: 16px; font-weight: 800; color: var(--text-primary); }
.feat-card p  { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }
.feat-card--ai {
  background: linear-gradient(135deg, var(--bg-icon), rgba(139,92,246,0.05));
  border-color: rgba(200,132,26,0.22);
}

/* ══════════════════════════════════════════════════════════════════
   OFFLINE READING
══════════════════════════════════════════════════════════════════ */
.section-offline  { padding: 100px 0; background: var(--bg-secondary); }
.offline-grid     { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.offline-content  { display: flex; flex-direction: column; gap: 24px; }
.offline-content .section-eyebrow,
.offline-content .section-title   { text-align: left; margin-bottom: 0; }
.offline-desc     { font-size: 17px; color: var(--text-secondary); line-height: 1.8; }
.offline-steps    { display: flex; flex-direction: column; gap: 0; }
.offline-step     { display: flex; align-items: flex-start; gap: 16px; padding: 16px 0; }
.os-num {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--grad-primary); display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 14px; font-weight: 800; color: #fff; flex-shrink: 0;
}
.os-info h4 { font-size: 15px; font-weight: 700; color: var(--text-primary); margin-bottom: 3px; }
.os-info p  { font-size: 13px; color: var(--text-secondary); }
.offline-connector { width: 2px; height: 20px; background: rgba(200,132,26,0.20); margin-left: 17px; }
.offline-pills    { display: flex; flex-wrap: wrap; gap: 10px; }
.offline-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.20);
  border-radius: var(--radius-full); font-size: 13px; font-weight: 600; color: var(--accent-gold);
}
.offline-phone {
  background: var(--bg-primary); border: 1.5px solid var(--border-glow);
  border-radius: 28px; overflow: hidden; padding: 20px; width: 320px;
  box-shadow: var(--shadow-card), var(--shadow-glow);
}
.op-header {
  display: flex; align-items: center; gap: 10px; margin-bottom: 16px;
  font-size: 14px; font-weight: 600; color: var(--text-primary);
}
.op-offline-icon { font-size: 16px; color: var(--accent-emerald); }
.op-status {
  margin-left: auto; padding: 3px 10px; background: rgba(16,185,129,0.12);
  border-radius: var(--radius-full); font-size: 11px; font-weight: 700; color: var(--accent-emerald);
}
.op-book-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.op-book-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
}
.op-book-icon  { width: 36px; height: 36px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }
.op-icon-1     { background: var(--bg-icon); color: var(--accent-gold); }
.op-icon-2     { background: rgba(139,92,246,0.12); color: var(--accent-violet); }
.op-icon-3     { background: rgba(239,68,68,0.12); color: var(--accent-crimson); }
.op-book-details { flex: 1; }
.op-book-name    { font-size: 12px; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.op-prog-bar     { width: 100%; height: 3px; background: var(--border); border-radius: 2px; }
.op-prog-fill    { height: 100%; background: var(--grad-primary); border-radius: 2px; }
.op-downloaded   { font-size: 16px; color: var(--accent-emerald); flex-shrink: 0; }
.op-reading-screen {
  background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.18);
  border-radius: 12px; padding: 16px; text-align: center;
}
.op-reading-text     { font-family: var(--font-tamil); font-size: 13px; line-height: 2; color: var(--text-primary); font-weight: 600; }
.op-reading-controls { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; color: var(--text-muted); font-size: 13px; }

/* ══════════════════════════════════════════════════════════════════
   TYPOGRAPHY SHOWCASE
══════════════════════════════════════════════════════════════════ */
.section-typography { padding: 100px 0; background: var(--bg-primary); overflow: hidden; }
.typo-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.typo-hero {
  display: flex; flex-direction: column; gap: 20px; align-items: flex-start;
  padding: 40px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-xl);
}
.typo-word    { font-family: var(--font-tamil); font-weight: 700; color: var(--text-primary); line-height: 1.2; }
.typo-word-lg { font-size: clamp(56px,8vw,96px); background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.typo-word-md { font-size: clamp(24px,3.5vw,40px); color: var(--text-secondary); }
.typo-word-sm { font-size: clamp(16px,2vw,24px);   color: var(--text-muted); letter-spacing: 2px; }
.typo-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.typo-feat {
  display: flex; flex-direction: column; gap: 8px;
  padding: 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md);
  transition: var(--transition);
}
.typo-feat:hover { border-color: var(--border-glow); transform: translateY(-4px); }
.tf-icon    { font-size: 20px; color: var(--accent-gold); margin-bottom: 4px; }
.typo-feat h4 { font-size: 14px; font-weight: 700; color: var(--text-primary); }
.typo-feat p  { font-size: 12px; color: var(--text-secondary); line-height: 1.6; }

/* ══════════════════════════════════════════════════════════════════
   ECOSYSTEM
══════════════════════════════════════════════════════════════════ */
.section-ecosystem { padding: 100px 0; background: var(--bg-secondary); }
.ecosystem-visual  {
  position: relative; height: 400px; margin-bottom: 80px;
  display: flex; align-items: center; justify-content: center;
}
.eco-center { position: relative; display: flex; align-items: center; justify-content: center; z-index: 2; }
.eco-center-ring { position: absolute; border-radius: 50%; border: 1px solid rgba(200,132,26,0.16); animation: ecoPulse 3s ease-in-out infinite; }
.eco-ring-1 { width: 160px; height: 160px; animation-delay: 0s; }
.eco-ring-2 { width: 240px; height: 240px; animation-delay: 1s; }
@keyframes ecoPulse { 0%,100% { opacity: 0.4; transform: scale(1); } 50% { opacity: 0.8; transform: scale(1.04); } }
.eco-center-logo {
  width: 120px; height: 120px; border-radius: 50%; z-index: 3;
  background: var(--grad-primary); display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 40px rgba(200,132,26,0.40);
}
.eco-brand  { font-family: var(--font-display); font-size: 11px; font-weight: 900; color: #fff; text-align: center; line-height: 1.3; letter-spacing: -0.3px; }
.eco-nodes  { position: absolute; inset: 0; pointer-events: none; }
.eco-node {
  position: absolute; display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 10px 14px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); font-size: 11px; font-weight: 600; color: var(--text-secondary);
  transition: var(--transition); animation: nodeFloat 6s ease-in-out infinite;
}
.eco-node i        { font-size: 16px; color: var(--accent-gold); }
.eco-node:hover    { border-color: var(--border-glow); color: var(--text-primary); }
.eco-node-1 { top: 5%;    left: 50%;  transform: translateX(-50%);  animation-delay: 0s;   }
.eco-node-2 { top: 15%;   right: 8%;                                 animation-delay: 0.5s; }
.eco-node-3 { top: 50%;   right: 3%;  transform: translateY(-50%);  animation-delay: 1s;   }
.eco-node-4 { bottom: 15%;right: 8%;                                 animation-delay: 1.5s; }
.eco-node-5 { bottom: 5%; left: 50%;  transform: translateX(-50%);  animation-delay: 2s;   }
.eco-node-6 { bottom: 15%;left: 8%;                                  animation-delay: 2.5s; }
.eco-node-7 { top: 50%;   left: 3%;   transform: translateY(-50%);  animation-delay: 3s;   }
.eco-node-8 { top: 15%;   left: 8%;                                  animation-delay: 3.5s; }
@keyframes nodeFloat { 0%,100% { transform: translateY(0) translateX(var(--tx,0)); } 50% { transform: translateY(-6px) translateX(var(--tx,0)); } }
.eco-sub-heading {
  font-family: var(--font-display); font-size: 24px; font-weight: 800; color: var(--text-primary);
  margin-bottom: 28px; text-align: center;
}
.eco-cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 20px; margin-bottom: 48px; }
.eco-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px; display: flex; flex-direction: column; gap: 12px; transition: var(--transition);
}
.eco-card:hover       { transform: translateY(-6px); border-color: var(--border-glow); box-shadow: var(--shadow-glow); }
.eco-card--featured   {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--bg-icon), rgba(200,132,26,0.04));
  border-color: rgba(200,132,26,0.22);
}
.ec-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  background: var(--bg-icon-neutral); border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; color: var(--ec-color, var(--accent-gold));
}
.eco-card h4 { font-family: var(--font-display); font-size: 17px; font-weight: 800; color: var(--text-primary); }
.eco-card p  { font-size: 13px; color: var(--text-secondary); line-height: 1.7; flex: 1; }
.ec-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.ec-tags li {
  padding: 3px 10px; background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.18);
  border-radius: var(--radius-full); font-size: 11px; font-weight: 600; color: var(--accent-gold);
}
.ec-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 18px; background: var(--grad-primary); color: var(--text-on-gold);
  border-radius: var(--radius-full); font-size: 12px; font-weight: 700; width: fit-content;
  transition: var(--transition-bounce); box-shadow: 0 4px 16px rgba(200,132,26,0.28);
}
.ec-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(200,132,26,0.48); }
.eco-category-header { text-align: center; margin: 72px 0 36px; }
.eco-category-header h3 { font-family: var(--font-display); font-size: 28px; font-weight: 900; color: var(--text-primary); margin-bottom: 12px; }
.eco-category-header p  { font-size: 16px; color: var(--text-secondary); max-width: 600px; margin: 0 auto; }
.eco-cta-row { display: flex; justify-content: center; margin-top: 36px; }

/* ══════════════════════════════════════════════════════════════════
   WHY THERABAPPS
══════════════════════════════════════════════════════════════════ */
.section-why { padding: 100px 0; background: var(--bg-primary); }
.why-grid    { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 20px; }
.why-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; display: flex; flex-direction: column; gap: 12px; transition: var(--transition);
}
.why-card:hover { transform: translateY(-6px); border-color: var(--border-glow); box-shadow: var(--shadow-glow); }
.why-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.22);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; color: var(--accent-gold); flex-shrink: 0;
}
.why-card h3 { font-family: var(--font-display); font-size: 17px; font-weight: 800; color: var(--text-primary); }
.why-card p  { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }

/* ══════════════════════════════════════════════════════════════════
   AUDIENCE
══════════════════════════════════════════════════════════════════ */
.section-audience { padding: 100px 0; background: var(--bg-secondary); }
.audience-grid    { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 20px; }
.audience-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; display: flex; flex-direction: column; gap: 14px; text-align: center; transition: var(--transition);
}
.audience-card:hover { transform: translateY(-6px); border-color: var(--border-glow); box-shadow: var(--shadow-glow); }
.aud-icon {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto;
  background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.22);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: var(--accent-gold);
}
.audience-card h3 { font-family: var(--font-display); font-size: 18px; font-weight: 800; color: var(--text-primary); }
.audience-card p  { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }

/* ══════════════════════════════════════════════════════════════════
   HERITAGE CINEMATIC — adapts fully to both themes
══════════════════════════════════════════════════════════════════ */
.section-heritage {
  position: relative; padding: 120px 0; overflow: hidden;
  background: var(--grad-cinematic);
}
.heritage-bg { position: absolute; inset: 0; pointer-events: none; }
.heritage-manuscript {
  position: absolute; inset: 0; opacity: 0.04;
  background-image:
    repeating-linear-gradient(0deg,  rgba(200,132,26,0.5) 0, rgba(200,132,26,0.5) 1px, transparent 1px, transparent 30px),
    repeating-linear-gradient(90deg, rgba(200,132,26,0.2) 0, rgba(200,132,26,0.2) 1px, transparent 1px, transparent 80px);
}
.heritage-ornament {
  position: absolute; border-radius: 50%; border: 1px solid rgba(200,132,26,0.08);
}
.heritage-ornament-1 { width: 700px; height: 700px; top: -200px; left: -200px; }
.heritage-ornament-2 { width: 600px; height: 600px; bottom: -200px; right: -200px; }
.heritage-content {
  text-align: center; max-width: 800px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 32px;
}
.heritage-ornamental-divider { display: flex; align-items: center; gap: 16px; width: 100%; }
.heritage-ornamental-divider span { font-size: 20px; color: var(--accent-gold); opacity: 0.7; }
.divider-line { flex: 1; height: 1px; background: linear-gradient(90deg, transparent, rgba(200,132,26,0.35), transparent); }
.heritage-tamil    { font-family: var(--font-tamil); font-size: clamp(22px,4vw,40px); font-weight: 700; color: var(--accent-gold); }
.heritage-headline {
  font-family: var(--font-display); font-size: clamp(24px,3.5vw,44px);
  font-weight: 900; line-height: 1.35; color: var(--heritage-text); letter-spacing: -1px;
}
.heritage-sub { font-size: 17px; color: var(--heritage-sub); line-height: 1.8; }

/* ══════════════════════════════════════════════════════════════════
   DEVELOPER STORY
══════════════════════════════════════════════════════════════════ */
.section-story { padding: 100px 0; background: var(--bg-primary); }
.story-grid    { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.story-content { display: flex; flex-direction: column; gap: 20px; }
.story-content .section-eyebrow,
.story-content .section-title  { text-align: left; margin-bottom: 0; }
.story-desc   { font-size: 16px; color: var(--text-secondary); line-height: 1.8; }
.story-values { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }
.sv-item      { display: flex; align-items: center; gap: 12px; font-size: 15px; font-weight: 500; color: var(--text-secondary); }
.sv-icon      { color: var(--accent-gold); font-size: 16px; flex-shrink: 0; }
.story-visual { display: flex; justify-content: center; }
.story-device-wrap { position: relative; width: 340px; height: 420px; }
.story-phone {
  position: absolute; top: 20px; left: 50%; transform: translateX(-50%);
  width: 220px; border-radius: 28px; overflow: hidden;
  border: 1.5px solid var(--border-glow); background: var(--bg-secondary);
  box-shadow: var(--shadow-story);
}
.sp-screen  { padding: 18px; display: flex; flex-direction: column; gap: 12px; }
.sp-header  { display: flex; justify-content: space-between; align-items: center; }
.sp-header span { font-family: var(--font-display); font-size: 13px; font-weight: 700; color: var(--accent-gold); }
.sp-kural   { background: var(--bg-icon); border: 1px solid rgba(200,132,26,0.18); border-radius: 12px; padding: 14px; }
.sp-kural p { font-family: var(--font-tamil); font-size: 11.5px; line-height: 1.9; color: var(--text-primary); font-weight: 600; }
.sp-kural-num { display: block; font-size: 9px; color: var(--text-muted); margin-top: 6px; }
.sp-meaning { padding: 0 2px; font-size: 12px; color: var(--text-secondary); line-height: 1.6; font-style: italic; }
.story-manuscript {
  position: absolute; bottom: 0; right: 0; width: 160px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 14px; padding: 16px; box-shadow: var(--shadow-card);
}
.manuscript-card { display: flex; flex-direction: column; }
.ms-lines { display: flex; flex-direction: column; gap: 8px; }
.ms-lines span { font-family: var(--font-tamil); font-size: 10px; color: var(--text-muted); line-height: 1.6; }

/* ══════════════════════════════════════════════════════════════════
   ANDROID DESIGN FEATURES
══════════════════════════════════════════════════════════════════ */
.section-android { padding: 100px 0; background: var(--bg-secondary); }
.android-features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr)); gap: 16px; }
.af-item {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 20px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); transition: var(--transition);
}
.af-item:hover { border-color: var(--border-glow); transform: translateY(-4px); }
.af-icon {
  width: 44px; height: 44px; border-radius: 12px; background: var(--bg-icon);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: var(--accent-gold); flex-shrink: 0;
}
.af-item h4 { font-size: 14px; font-weight: 700; color: var(--text-primary); margin-bottom: 3px; }
.af-item p  { font-size: 12px; color: var(--text-secondary); line-height: 1.6; }

/* ══════════════════════════════════════════════════════════════════
   DOWNLOAD CTA — adapts to both themes
══════════════════════════════════════════════════════════════════ */
.section-download {
  position: relative; padding: 120px 0; overflow: hidden;
  background: var(--grad-download);
}
.download-blobs  { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.dl-blob         { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.35; }
.dl-blob-1 { width: 500px; height: 500px; top: -100px; left: -100px; background: radial-gradient(circle, rgba(200,132,26,0.5), transparent 70%); animation: blobFloat 12s ease-in-out infinite; }
.dl-blob-2 { width: 400px; height: 400px; bottom: -100px; right: -100px; background: radial-gradient(circle, rgba(200,132,26,0.40), transparent 70%); animation: blobFloat 15s ease-in-out infinite reverse; }
.download-content {
  position: relative; z-index: 2; text-align: center; max-width: 700px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 24px;
}
.download-tamil  { font-family: var(--font-tamil); font-size: clamp(16px,2.2vw,22px); color: var(--accent-gold); font-weight: 600; letter-spacing: 1px; }
.download-desc   { font-size: 17px; color: var(--text-secondary); line-height: 1.8; }
.download-ctas   { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.download-btn-primary { padding: 18px 44px; font-size: 18px; box-shadow: 0 12px 40px rgba(200,132,26,0.45); }
.download-btn-primary span { display: flex; flex-direction: column; align-items: flex-start; gap: 1px; }
.download-btn-primary small { font-size: 11px; opacity: 0.85; font-weight: 400; }
.download-features { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.dl-feat   { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 500; color: var(--text-secondary); }
.dl-feat i { color: var(--accent-gold); font-size: 13px; }

/* ══════════════════════════════════════════════════════════════════
   COMMUNITY / THANK YOU
══════════════════════════════════════════════════════════════════ */
.section-community { padding: 100px 0; background: var(--bg-primary); }
.community-content {
  text-align: center; max-width: 700px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 24px;
}
.community-desc { font-size: 17px; color: var(--text-secondary); line-height: 1.8; }
.community-pillars { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; justify-content: center; }
.cp-item   { display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 600; color: var(--text-primary); }
.cp-emoji  { font-size: 22px; }
.cp-divider { font-size: 24px; color: var(--text-muted); }

/* ══════════════════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════════════════ */
.tlh-footer { padding: 80px 0 0; background: var(--bg-secondary); border-top: 1px solid var(--border); }
.footer-container {
  max-width: 1280px; margin: 0 auto; padding: 0 32px 60px;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px;
}
.footer-brand    { display: flex; flex-direction: column; gap: 16px; }
.footer-logo     { display: flex; align-items: center; gap: 12px; }
.footer-logo-icon {
  width: 44px; height: 44px; border-radius: 12px; background: var(--grad-primary);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.footer-logo-name { font-family: var(--font-display); font-size: 20px; font-weight: 900; color: var(--text-primary); }
.footer-tagline   { font-size: 13px; color: var(--text-muted); font-style: italic; }
.footer-play-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 20px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); transition: var(--transition); width: fit-content;
}
.footer-play-btn:hover    { border-color: var(--accent-gold); }
.footer-play-btn i        { font-size: 20px; color: var(--accent-gold); }
.footer-play-btn span     { display: flex; flex-direction: column; gap: 1px; }
.footer-play-btn small    { font-size: 10px; color: var(--text-muted); }
.footer-play-btn strong   { font-size: 14px; font-weight: 700; color: var(--text-primary); display: block; }
.footer-col-title {
  font-family: var(--font-display); font-size: 14px; font-weight: 800; color: var(--text-primary);
  margin-bottom: 16px; letter-spacing: 0.5px; text-transform: uppercase;
}
.footer-links   { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: var(--text-secondary); transition: var(--transition); display: inline-flex; align-items: center; gap: 6px; }
.footer-links a:hover { color: var(--accent-gold); }
.footer-links i { font-size: 12px; }
.footer-bottom {
  border-top: 1px solid var(--border); padding: 24px 32px;
  max-width: 1280px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
}
.footer-copyright { font-size: 13px; color: var(--text-muted); }
.footer-mission   { font-family: var(--font-tamil); font-size: 14px; color: var(--accent-gold); opacity: 0.75; }

/* ══════════════════════════════════════════════════════════════════
   STICKY PLAY BUTTON
══════════════════════════════════════════════════════════════════ */
.sticky-play-wrap {
  position: fixed; bottom: 24px; right: 24px; z-index: 900;
  transform: translateY(100px); opacity: 0; transition: var(--transition-bounce);
}
.sticky-play-wrap.visible { transform: translateY(0); opacity: 1; }
.sticky-play-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; background: var(--grad-primary); color: var(--text-on-gold);
  border-radius: var(--radius-full); font-weight: 700; font-size: 14px;
  box-shadow: 0 8px 32px rgba(200,132,26,0.45); transition: var(--transition-bounce);
}
.sticky-play-btn:hover { transform: scale(1.05); }
.sticky-play-btn i { font-size: 16px; }

/* ══════════════════════════════════════════════════════════════════
   REDUCED MOTION
══════════════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .tlh-phone-wrap, .float-card, .blob { animation: none !important; }
}

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE — TABLET  (≤ 1024px)
══════════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero-container    { grid-template-columns: 1fr; gap: 48px; text-align: center; }
  .hero-content      { align-items: center; }
  .hero-sub          { text-align: center; }
  .hero-visual       { display: none; }
  .hero-stats        { justify-content: center; }
  .brand-grid        { grid-template-columns: 1fr; }
  .brand-visual      { display: none; }
  .offline-grid      { grid-template-columns: 1fr; }
  .story-grid        { grid-template-columns: 1fr; }
  .story-visual      { display: none; }
  .typo-showcase     { grid-template-columns: 1fr; }
  .eco-card--featured{ grid-column: span 1; }
  .footer-container  { grid-template-columns: 1fr 1fr; gap: 32px; }
  .ecosystem-visual  { height: 320px; }
}

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE — MOBILE  (≤ 768px)
══════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .nav-links      { display: none; }
  .hamburger      { display: flex; }
  .nav-logo-by    { display: none; }
  .nav-logo-name  { font-size: 13px; }
  .section-container { padding: 0 20px; }
  .hero-container { padding: calc(var(--nav-h) + 40px) 20px 60px; }
  .section-features, .section-collection, .section-brand, .section-mission,
  .section-offline, .section-typography, .section-ecosystem, .section-why,
  .section-audience, .section-story, .section-android, .section-community,
  .section-download, .section-heritage { padding: 72px 0; }
  .section-header     { margin-bottom: 40px; }
  .collection-carousel{ grid-template-columns: 1fr; }
  .features-grid      { grid-template-columns: 1fr 1fr; }
  .why-grid           { grid-template-columns: 1fr 1fr; }
  .android-features-grid { grid-template-columns: 1fr 1fr; }
  .eco-cards-grid     { grid-template-columns: 1fr; }
  .audience-grid      { grid-template-columns: 1fr 1fr; }
  .mission-journey    { flex-direction: column; align-items: center; }
  .journey-arrow      { transform: rotate(90deg); padding: 8px 0; }
  .journey-step       { width: 100%; max-width: 100%; }
  .footer-container   { grid-template-columns: 1fr; }
  .footer-bottom      { flex-direction: column; text-align: center; }
  .brand-pillars      { grid-template-columns: 1fr; }
  .typo-features      { grid-template-columns: 1fr; }
  .community-pillars  { flex-direction: column; gap: 12px; }
  .cp-divider         { display: none; }
  .hero-ctas          { justify-content: center; }
  .download-ctas      { flex-direction: column; align-items: center; }
}

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE  (≤ 480px)
══════════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .features-grid         { grid-template-columns: 1fr; }
  .why-grid              { grid-template-columns: 1fr; }
  .audience-grid         { grid-template-columns: 1fr; }
  .android-features-grid { grid-template-columns: 1fr; }
  .eco-cards-grid        { grid-template-columns: 1fr; }
}