/*
 * OmSaravanaBhava — Premium Pages Enhancement 2026
 * Phase 3B: Additive CSS for priority pages using osb44 / release-247 design systems.
 * Applied to: temples, thiruppugazh, murugan-song-library, gallery, audio-library,
 *             explore, ai-search, apps, about, help-centre, privacy, sources.
 *
 * Rules are additive — no existing selectors are removed or destructively overridden.
 * All new rules use specificity parity or higher only where needed.
 */

/* ─── 1. SHARED DESIGN TOKEN EXTENSIONS ────────────────────────────────────── */
:root {
  /* Gold palette (mirrors homepage) */
  --p3-gold:        #f2bd54;
  --p3-gold-2:      #ffe3a0;
  --p3-gold-glow:   rgba(242,189,84,.4);
  --p3-gold-rim:    rgba(242,189,84,.16);
  --p3-gold-deep:   #c49a2a;

  /* Saffron */
  --p3-saffron:     #e8750a;
  --p3-saffron-soft:rgba(232,117,10,.14);

  /* Peacock */
  --p3-peacock:     #1a6b8a;
  --p3-peacock-soft:rgba(26,107,138,.14);

  /* Dark backgrounds */
  --p3-bg:          #0b0b12;
  --p3-panel:       #0e0c14;
  --p3-panel-2:     rgba(14,12,20,.92);

  /* Text */
  --p3-cream:       #fff8e8;
  --p3-muted:       rgba(215,203,187,.72);

  /* Spacing */
  --p3-space-sm:    1rem;
  --p3-space-md:    1.5rem;
  --p3-space-lg:    2.5rem;
  --p3-space-xl:    4rem;

  /* Radius */
  --p3-radius-sm:   12px;
  --p3-radius-md:   20px;
  --p3-radius-lg:   28px;
  --p3-radius-pill: 999px;

  /* Easing */
  --p3-ease:        cubic-bezier(.2,.75,.2,1);
  --p3-spring:      cubic-bezier(.34,1.56,.64,1);

  /* Typography */
  --p3-font-ui:     system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --p3-font-tamil:  "Noto Serif Tamil","Noto Sans Tamil","Nirmala UI",Georgia,serif;
}

/* ─── 2. GLOBAL BODY POLISH (shared) ───────────────────────────────────────── */
body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ─── 3. SKIP LINK ──────────────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: .75rem 1.25rem;
  border-radius: 0 0 var(--p3-radius-sm) var(--p3-radius-sm);
  background: var(--p3-gold);
  color: #1a0c04;
  font: 700 .9rem/1 var(--p3-font-ui);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
  transition: top .15s ease;
}
.skip-link:focus {
  top: 0;
}

/* ─── 4. FOCUS RING (all pages) ─────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--p3-gold);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ─── 5. NAVIGATION — PREMIUM REFINEMENTS ──────────────────────────────────── */

/* osb44 nav */
.nav {
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid rgba(176,141,87,.18);
  transition: box-shadow .3s ease, background .3s ease;
}
.nav.scrolled,
.nav[data-scrolled] {
  box-shadow: 0 1px 0 rgba(176,141,87,.18), 0 4px 24px rgba(0,0,0,.5);
}
.nav .brand {
  font-weight: 700;
  letter-spacing: -.01em;
}
.nav .links a {
  font-size: .88rem;
  font-weight: 500;
  letter-spacing: .01em;
  border-radius: var(--p3-radius-pill);
  padding: .35rem .7rem;
  transition: background .2s ease, color .2s ease;
}
.nav .links a:hover,
.nav .links a:focus-visible {
  background: rgba(176,141,87,.12);
}
.nav .links a[aria-current="page"] {
  background: rgba(176,141,87,.18);
  font-weight: 600;
}

/* release-247 site-header (temples.html) */
.site-header {
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--p3-gold-rim);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled,
[data-header].scrolled {
  background: rgba(6,5,10,.97);
  box-shadow: 0 1px 0 var(--p3-gold-rim), 0 4px 24px rgba(0,0,0,.6);
}

/* ─── 6. PAGE HERO SECTIONS ─────────────────────────────────────────────────── */

/* premium-hero (apps.html, gallery.html) */
.premium-hero {
  position: relative;
  overflow: hidden;
  min-height: clamp(260px, 38vw, 480px);
  display: flex;
  align-items: flex-end;
  padding: clamp(2rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
  background-color: var(--p3-bg);
  background-size: cover;
  background-position: center 30%;
}
.premium-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(4,3,8,.97) 0%,
    rgba(6,5,10,.82) 40%,
    rgba(5,4,9,.55) 65%,
    rgba(5,4,9,.72) 100%
  );
  z-index: 0;
}
.premium-hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}
.premium-hero .premium-eyebrow {
  font-size: .7rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--p3-gold);
  margin-bottom: .75rem;
  display: flex;
  align-items: center;
  gap: .6rem;
}
.premium-hero .premium-eyebrow::before {
  content: "";
  display: block;
  width: 24px;
  height: 1px;
  background: var(--p3-gold);
  flex-shrink: 0;
}
.premium-hero .premium-title {
  font-size: clamp(2.4rem, 6vw, 5.2rem);
  line-height: 1.04;
  letter-spacing: -.025em;
  margin: 0 0 .6rem;
  background: linear-gradient(135deg, var(--p3-gold-2) 0%, var(--p3-gold) 50%, var(--p3-saffron) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.premium-hero .premium-lead {
  font-size: clamp(.95rem, 1.3vw, 1.15rem);
  line-height: 1.72;
  color: rgba(243,233,218,.88);
  max-width: 560px;
  margin-bottom: 1.4rem;
}
.premium-hero .premium-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-bottom: .75rem;
}

/* osb44 card hero (audio-library, thiruppugazh) */
.card:first-child .section-title {
  background: linear-gradient(135deg, #8f2436 0%, #c49a2a 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── 7. BUTTONS — PREMIUM TREATMENT ───────────────────────────────────────── */

.premium-button,
.btn,
button.btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .65rem 1.3rem;
  border-radius: var(--p3-radius-pill);
  font: 600 .88rem/1 var(--p3-font-ui);
  letter-spacing: .02em;
  cursor: pointer;
  transition: transform .18s var(--p3-spring), box-shadow .2s ease, background .2s ease;
  text-decoration: none;
  border: none;
  min-height: 44px;
}
.premium-button:not(.secondary),
.btn:not(.secondary) {
  background: linear-gradient(135deg, var(--p3-gold) 0%, var(--p3-saffron) 100%);
  color: #1a0c04;
  box-shadow: 0 4px 18px rgba(242,189,84,.3);
}
.premium-button:not(.secondary):hover,
.btn:not(.secondary):hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(242,189,84,.45);
}
.premium-button.secondary,
.btn.secondary {
  background: rgba(242,189,84,.1);
  color: var(--p3-gold-2);
  border: 1px solid var(--p3-gold-rim);
}
.premium-button.secondary:hover,
.btn.secondary:hover {
  background: rgba(242,189,84,.18);
  transform: translateY(-1px);
}

/* ─── 8. CARDS — PREMIUM ELEVATION ─────────────────────────────────────────── */

/* premium-card (apps, gallery, audio) */
.premium-card {
  border-radius: var(--p3-radius-lg);
  border: 1px solid rgba(176,141,87,.14);
  background: rgba(14,12,20,.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: clamp(1.4rem, 3vw, 2.2rem);
  transition: transform .22s var(--p3-spring), box-shadow .22s ease, border-color .22s ease;
}
.premium-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,.4), 0 0 0 1px rgba(242,189,84,.18);
  border-color: rgba(242,189,84,.28);
}
.premium-card h2 {
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  margin: 0 0 .6rem;
  color: var(--p3-gold-2);
}
.premium-card h3 {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.3;
  color: var(--p3-cream);
}
.premium-card p {
  font-size: .9rem;
  line-height: 1.72;
  color: var(--p3-muted);
}

/* osb44 .card refinements */
.card {
  transition: transform .22s var(--p3-spring), box-shadow .22s ease;
}
.card:hover {
  transform: translateY(-2px);
}

/* ─── 9. PILLS / BADGES ─────────────────────────────────────────────────────── */

.premium-pill,
.pill {
  display: inline-flex;
  align-items: center;
  padding: .25rem .7rem;
  border-radius: var(--p3-radius-pill);
  font: 600 .7rem/1 var(--p3-font-ui);
  letter-spacing: .08em;
  text-transform: uppercase;
  background: rgba(242,189,84,.12);
  color: var(--p3-gold);
  border: 1px solid var(--p3-gold-rim);
}
.premium-pills {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: .75rem;
}

/* ─── 10. EYEBROW LABELS ────────────────────────────────────────────────────── */

.premium-eyebrow,
.eyebrow {
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--p3-gold);
  font-family: var(--p3-font-ui);
  font-weight: 600;
}

/* ─── 11. TEMPLES PAGE ──────────────────────────────────────────────────────── */

/* Temple hero */
.temples-hero {
  position: relative;
  overflow: hidden;
  min-height: clamp(280px, 42vw, 520px);
  display: flex;
  align-items: flex-end;
  padding: clamp(2rem, 5vw, 4.5rem) clamp(1.5rem, 5vw, 4rem);
  background: var(--p3-bg);
}
.temples-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(4,3,8,.96) 0%,
    rgba(8,5,14,.78) 45%,
    rgba(5,4,9,.45) 65%,
    rgba(5,4,9,.82) 100%
  );
  z-index: 1;
}
.temples-hero-bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.temples-hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}
.temples-hero h1 {
  font-size: clamp(2.8rem, 7vw, 6.4rem);
  line-height: 1.04;
  letter-spacing: -.025em;
  margin: 0 0 .5rem;
  background: linear-gradient(135deg, var(--p3-gold-2) 0%, var(--p3-gold) 55%, var(--p3-saffron) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.temples-hero p {
  font-size: clamp(.95rem, 1.4vw, 1.15rem);
  line-height: 1.72;
  color: rgba(243,233,218,.85);
  max-width: 540px;
  margin-bottom: 1.4rem;
}

/* Temple cards grid */
.temple-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
  margin-top: 1.5rem;
}
.temple-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--p3-radius-lg);
  border: 1px solid rgba(176,141,87,.14);
  background: rgba(14,12,20,.88);
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: transform .25s var(--p3-spring), box-shadow .25s ease, border-color .25s ease;
  text-decoration: none;
  color: inherit;
}
.temple-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 56px rgba(0,0,0,.5), 0 0 0 1px rgba(242,189,84,.28);
  border-color: rgba(242,189,84,.32);
}
.temple-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--p3-ease), filter .5s ease;
  filter: saturate(1.05) brightness(.9);
}
.temple-card:hover img {
  transform: scale(1.04);
  filter: saturate(1.15) brightness(.95);
}
.temple-card::after {
  content: "";
  position: absolute;
  inset: 30% 0 0;
  background: linear-gradient(transparent, rgba(6,5,10,.55) 45%, rgba(6,5,10,.97) 90%);
  z-index: 1;
}
.temple-card-body {
  position: relative;
  z-index: 2;
  padding: 1.2rem 1.3rem 1.3rem;
}
.temple-card-body h2,
.temple-card-body h3 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  line-height: 1.2;
  color: var(--p3-gold-2);
  margin: 0 0 .3rem;
  letter-spacing: -.01em;
}
.temple-card-body p {
  font-size: .8rem;
  color: rgba(232,222,208,.78);
  line-height: 1.45;
  margin: 0;
}
.temple-card-badge {
  position: absolute;
  top: .9rem;
  left: .9rem;
  z-index: 3;
  padding: .2rem .6rem;
  border-radius: var(--p3-radius-pill);
  font: 600 .65rem/1 var(--p3-font-ui);
  letter-spacing: .08em;
  text-transform: uppercase;
  background: rgba(242,189,84,.18);
  color: var(--p3-gold);
  border: 1px solid var(--p3-gold-rim);
  backdrop-filter: blur(8px);
}

/* ─── 12. THIRUPPUGAZH / SONG LIBRARY ──────────────────────────────────────── */

/* Toolbar refinements */
.thiruppugazh-toolbar,
.audio-toolbar,
.route-controls {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: flex-end;
  padding: 1.2rem 1.4rem;
  border-radius: var(--p3-radius-md);
  background: rgba(14,12,20,.7);
  border: 1px solid rgba(176,141,87,.14);
  backdrop-filter: blur(12px);
  margin-bottom: 1.2rem;
}
.thiruppugazh-toolbar label,
.audio-toolbar label,
.route-controls label {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  font-size: .8rem;
  font-weight: 600;
  color: var(--p3-gold);
  letter-spacing: .04em;
  text-transform: uppercase;
  font-family: var(--p3-font-ui);
}
.thiruppugazh-toolbar input,
.thiruppugazh-toolbar select,
.audio-toolbar input,
.audio-toolbar select,
.route-controls input,
.route-controls select {
  min-height: 44px;
  padding: .55rem .9rem;
  border-radius: var(--p3-radius-sm);
  border: 1px solid rgba(176,141,87,.22);
  background: rgba(14,12,20,.9);
  color: var(--p3-cream);
  font: inherit;
  font-size: .9rem;
  transition: border-color .2s ease, box-shadow .2s ease;
  min-width: 180px;
}
.thiruppugazh-toolbar input:focus,
.thiruppugazh-toolbar select:focus,
.audio-toolbar input:focus,
.audio-toolbar select:focus,
.route-controls input:focus,
.route-controls select:focus {
  border-color: var(--p3-gold);
  box-shadow: 0 0 0 3px var(--p3-gold-glow);
  outline: none;
}
.thiruppugazh-toolbar input::placeholder,
.audio-toolbar input::placeholder,
.route-controls input::placeholder {
  color: rgba(215,203,187,.45);
}

/* Song cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}
.grid .card {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.grid .card h2 {
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  line-height: 1.2;
  margin: 0 0 .3rem;
}
.grid .card h3 {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  margin: 0 0 .2rem;
}

/* Verse blocks */
.verse {
  border-left: 3px solid var(--p3-gold);
  padding: 1rem 1.2rem;
  border-radius: 0 var(--p3-radius-sm) var(--p3-radius-sm) 0;
  background: rgba(242,189,84,.05);
  font-family: var(--p3-font-tamil);
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  line-height: 1.85;
  letter-spacing: .01em;
  margin: 1rem 0;
}

/* Reading progress bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--p3-gold), var(--p3-saffron));
  z-index: 9999;
  width: 0%;
  transition: width .1s linear;
  pointer-events: none;
}

/* ─── 13. GALLERY PAGE ──────────────────────────────────────────────────────── */

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}
.media-grid article,
.media-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--p3-radius-md);
  border: 1px solid rgba(176,141,87,.14);
  background: rgba(14,12,20,.88);
  transition: transform .25s var(--p3-spring), box-shadow .25s ease, border-color .25s ease;
  cursor: pointer;
}
.media-grid article:hover,
.media-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,.45), 0 0 0 1px rgba(242,189,84,.22);
  border-color: rgba(242,189,84,.28);
}
.media-grid img,
.media-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
  transition: transform .45s var(--p3-ease), filter .45s ease;
  filter: saturate(1.05) brightness(.92);
}
.media-grid article:hover img,
.media-card:hover img {
  transform: scale(1.04);
  filter: saturate(1.15) brightness(.98);
}
.media-caption {
  padding: .9rem 1rem;
}
.media-caption h3 {
  font-size: .92rem;
  line-height: 1.3;
  color: var(--p3-gold-2);
  margin: 0 0 .2rem;
}
.media-caption p,
.media-caption small {
  font-size: .75rem;
  color: var(--p3-muted);
  line-height: 1.45;
  margin: 0;
}

/* Gallery filters */
.gallery-filters,
.media-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  align-items: flex-end;
  padding: 1rem 1.2rem;
  border-radius: var(--p3-radius-md);
  background: rgba(14,12,20,.7);
  border: 1px solid rgba(176,141,87,.14);
  margin-bottom: 1.2rem;
}

/* ─── 14. AUDIO LIBRARY ─────────────────────────────────────────────────────── */

/* Audio hero */
.audio-hero {
  border: 1px solid rgba(176,141,87,.18) !important;
  background: linear-gradient(135deg, rgba(14,12,20,.96), rgba(20,10,8,.92)) !important;
  box-shadow: 0 20px 60px rgba(0,0,0,.4) !important;
}
.audio-hero .lead {
  color: rgba(243,233,218,.88);
}
.audio-hero-mark {
  background: linear-gradient(145deg, #74170f, #a94f00, #c49a2a) !important;
  box-shadow: 0 28px 70px rgba(116,23,15,.35), 0 0 0 1px rgba(242,189,84,.2) !important;
}

/* Audio catalog cards */
.audio-catalog-card {
  border: 1px solid rgba(176,141,87,.14) !important;
  transition: transform .22s var(--p3-spring), box-shadow .22s ease, border-color .22s ease !important;
}
.audio-catalog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,.4), 0 0 0 1px rgba(242,189,84,.22) !important;
  border-color: rgba(242,189,84,.28) !important;
}
.audio-card-status {
  font-size: .8rem;
  letter-spacing: .04em;
}

/* Media player — premium treatment */
.osb-media-player {
  border: 1px solid rgba(176,141,87,.28) !important;
  box-shadow: 0 30px 90px rgba(65,24,10,.35), 0 0 0 1px rgba(242,189,84,.1) !important;
}

/* ─── 15. EXPLORE PAGE ──────────────────────────────────────────────────────── */

/* Explore sections */
#exploreSections .card {
  margin-bottom: 1rem;
}
#exploreSections .card h2 {
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  margin-bottom: .5rem;
}

/* Route item links */
.route-item,
.explore-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .65rem .85rem;
  border-radius: var(--p3-radius-sm);
  text-decoration: none;
  color: inherit;
  transition: background .18s ease, transform .18s var(--p3-spring);
  border: 1px solid transparent;
}
.route-item:hover,
.explore-item:hover {
  background: rgba(242,189,84,.07);
  border-color: var(--p3-gold-rim);
  transform: translateX(3px);
}
.route-item strong,
.explore-item strong {
  font-size: .95rem;
  color: var(--p3-gold-2);
  display: block;
}
.route-item small,
.explore-item small {
  font-size: .78rem;
  color: var(--p3-muted);
}

/* ─── 16. AI SEARCH PAGE ────────────────────────────────────────────────────── */

/* Search input */
#aiQuery,
.ai-search-input {
  width: 100%;
  min-height: 52px;
  padding: .75rem 1.2rem;
  border-radius: var(--p3-radius-pill);
  border: 1px solid rgba(176,141,87,.28);
  background: rgba(14,12,20,.9);
  color: var(--p3-cream);
  font: inherit;
  font-size: 1rem;
  transition: border-color .2s ease, box-shadow .2s ease;
}
#aiQuery:focus,
.ai-search-input:focus {
  border-color: var(--p3-gold);
  box-shadow: 0 0 0 4px var(--p3-gold-glow);
  outline: none;
}
#aiQuery::placeholder,
.ai-search-input::placeholder {
  color: rgba(215,203,187,.4);
}

/* Search results */
.ai-result,
.search-result {
  padding: 1rem 1.2rem;
  border-radius: var(--p3-radius-md);
  border: 1px solid rgba(176,141,87,.14);
  background: rgba(14,12,20,.7);
  margin-bottom: .65rem;
  transition: border-color .2s ease, background .2s ease;
}
.ai-result:hover,
.search-result:hover {
  border-color: rgba(242,189,84,.28);
  background: rgba(14,12,20,.9);
}
.ai-result h3,
.search-result h3 {
  font-size: 1rem;
  color: var(--p3-gold-2);
  margin: 0 0 .3rem;
}
.ai-result p,
.search-result p {
  font-size: .85rem;
  color: var(--p3-muted);
  line-height: 1.6;
  margin: 0;
}

/* ─── 17. APPS PAGE ─────────────────────────────────────────────────────────── */

/* Install button */
#installWebApp {
  background: linear-gradient(135deg, var(--p3-gold) 0%, var(--p3-saffron) 100%);
  color: #1a0c04;
  font-weight: 700;
  box-shadow: 0 6px 24px rgba(242,189,84,.35);
}
#installWebApp:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(242,189,84,.5);
}
#installStatus {
  font-size: .82rem;
  color: var(--p3-muted);
  margin-top: .5rem;
}

/* ─── 18. FOOTER — SHARED PREMIUM TREATMENT ────────────────────────────────── */

/* Simple footer (osb44 pages) */
footer {
  border-top: 1px solid rgba(176,141,87,.14);
  padding: 2rem clamp(1.2rem, 4vw, 3rem);
  font-size: .82rem;
  color: rgba(215,203,187,.6);
}
footer p:first-child {
  font-size: .95rem;
  color: var(--p3-gold);
  font-family: var(--p3-font-tamil);
  margin-bottom: .5rem;
}
footer nav a {
  color: rgba(215,203,187,.65);
  text-decoration: none;
  transition: color .18s ease;
  padding: .2rem .1rem;
}
footer nav a:hover {
  color: var(--p3-gold-2);
}
footer small {
  display: block;
  margin-top: .75rem;
  font-size: .72rem;
  color: rgba(215,203,187,.4);
}

/* ─── 19. SCROLL REVEAL ─────────────────────────────────────────────────────── */

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .55s var(--p3-ease), transform .55s var(--p3-ease);
}
[data-reveal][data-visible] {
  opacity: 1;
  transform: none;
}
[data-reveal][data-reveal-delay="1"] { transition-delay: .1s; }
[data-reveal][data-reveal-delay="2"] { transition-delay: .2s; }
[data-reveal][data-reveal-delay="3"] { transition-delay: .3s; }

/* ─── 20. BREADCRUMB ────────────────────────────────────────────────────────── */

nav[aria-label="Breadcrumb"] p,
.breadcrumb {
  font-size: .8rem;
  color: var(--p3-muted);
  margin-bottom: 1.5rem;
}
nav[aria-label="Breadcrumb"] a,
.breadcrumb a {
  color: var(--p3-gold);
  text-decoration: none;
  transition: color .18s ease;
}
nav[aria-label="Breadcrumb"] a:hover,
.breadcrumb a:hover {
  color: var(--p3-gold-2);
}

/* ─── 21. BACK TO TOP ───────────────────────────────────────────────────────── */

.back-to-top,
[data-back-top] {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(14,12,20,.92);
  border: 1px solid var(--p3-gold-rim);
  color: var(--p3-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform .2s var(--p3-spring), opacity .2s ease, box-shadow .2s ease;
  opacity: 0;
  pointer-events: none;
  backdrop-filter: blur(12px);
}
.back-to-top.visible,
[data-back-top].visible {
  opacity: 1;
  pointer-events: auto;
}
.back-to-top:hover,
[data-back-top]:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
}

/* ─── 22. MOBILE RESPONSIVE ─────────────────────────────────────────────────── */

@media (max-width: 768px) {
  .premium-hero {
    min-height: clamp(220px, 55vw, 360px);
    padding: 1.5rem 1.2rem;
    align-items: flex-end;
  }
  .premium-hero .premium-title {
    font-size: clamp(2rem, 9vw, 3.2rem);
  }
  .premium-hero .premium-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  .temple-grid {
    grid-template-columns: 1fr 1fr;
    gap: .75rem;
  }
  .temple-card {
    min-height: 200px;
  }
  .media-grid {
    grid-template-columns: 1fr 1fr;
    gap: .75rem;
  }
  .grid {
    grid-template-columns: 1fr;
  }
  .thiruppugazh-toolbar,
  .audio-toolbar,
  .route-controls {
    flex-direction: column;
    align-items: stretch;
  }
  .thiruppugazh-toolbar input,
  .thiruppugazh-toolbar select,
  .audio-toolbar input,
  .audio-toolbar select,
  .route-controls input,
  .route-controls select {
    min-width: 0;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .temple-grid {
    grid-template-columns: 1fr;
  }
  .media-grid {
    grid-template-columns: 1fr;
  }
  .premium-hero .premium-title {
    font-size: clamp(1.8rem, 11vw, 2.8rem);
  }
  .back-to-top,
  [data-back-top] {
    bottom: 1rem;
    right: 1rem;
  }
}

/* ─── 23. ACCESSIBILITY ─────────────────────────────────────────────────────── */

@media (forced-colors: active) {
  .premium-hero .premium-title,
  .temples-hero h1,
  .card:first-child .section-title {
    -webkit-text-fill-color: CanvasText;
    background: none;
    color: CanvasText;
  }
  .temple-card::after,
  .media-grid article::after {
    background: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  .temple-card,
  .temple-card img,
  .media-grid article,
  .media-grid img,
  .premium-card,
  .card,
  .premium-button,
  .btn,
  .route-item,
  .explore-item {
    animation: none !important;
    transition: none !important;
  }
  .temple-card:hover img,
  .media-grid article:hover img {
    transform: none;
  }
  .temple-card:hover,
  .premium-card:hover,
  .card:hover {
    transform: none;
  }
}

/* ─── 24. PRINT ─────────────────────────────────────────────────────────────── */

@media print {
  .nav,
  .site-header,
  .skip-link,
  .back-to-top,
  .tools,
  .osb-media-player,
  .reading-progress {
    display: none !important;
  }
  .premium-hero .premium-title,
  .temples-hero h1,
  .card:first-child .section-title {
    -webkit-text-fill-color: #000;
    background: none;
    color: #000;
  }
  body {
    background: #fff;
    color: #000;
  }
}