/* ==========================================================================
   திருவாசகம் · Thiruvaasagam · Māṇikkavācakar · c. 9th century CE
   51 hymns · 658 verses · Sacred Utterances of the Tamil Śaiva Saint

   Visual identity:
   The Thiruvaasagam is fire and ash — Śiva's two most intimate substances.
   The sacred ash (vibhūti) covers his body: white on red. The flame of
   the Naṭarāja's ring (prabhāmaṇḍala) blazes around the dance. The
   crimson of Kaṇṇaki's fury (from the Cilappatikāram) is here re-read
   as the devotee's burning love. The palette:

     - Sacred flame crimson  (#8b1a1a / #a83222) — the fire of devotion
     - Ash white             (#f0e8d8 / #e8dcc8) — the vibhūti, cool ash
     - Deep ash              (#3a2808 / #5a4018) — the burnt-out base
     - Koṉṟai gold           (#b8860b / #d4a017) — the flower in his matted hair
     - Chidambaram night     (#1a1a3a / #2a2a5a) — the sky of the golden hall

   The mark: the Naṭarāja ring — a circle of flames with a small central
   figure — simplified to abstract flame-petals around a dot, immediately
   recognisable as Chidambaram's cosmic dancer.
   ========================================================================== */

:root {
  /* ── Sacred flame crimson (primary) ─────────────────── */
  --tv-flame:        #8b1a1a;
  --tv-flame-mid:    #a83222;
  --tv-flame-bright: #c84030;
  --tv-flame-pale:   rgba(139,26,26,0.10);
  --tv-flame-pale2:  rgba(139,26,26,0.06);

  /* ── Koṉṟai gold (secondary) ────────────────────────── */
  --tv-gold:         #b8860b;
  --tv-gold-mid:     #d4a017;
  --tv-gold-pale:    rgba(184,134,11,0.10);

  /* ── Ash tones (tertiary) ────────────────────────────── */
  --tv-ash:          #5a4018;
  --tv-ash-pale:     rgba(90,64,24,0.08);

  /* ── Chidambaram night ───────────────────────────────── */
  --tv-night:        #1a1a3a;
  --tv-night-mid:    #2a2a5a;

  /* ── Per-section accent colours ─────────────────────── */
  --tv-sec1: #8b1a1a;   /* Section 1 — Civapurāṇam — deep crimson */
  --tv-sec2: #7a4a08;   /* Section 2 — Vempāvai — amber */
  --tv-sec3: #2a4a7a;   /* Section 3 — Temple cycle — night blue */
  --tv-sec4: #3a1a5a;   /* Section 4 — Soul's experience — violet */
  --tv-sec5: #1a4a28;   /* Section 5 — Culmination — forest green */

  /* ── Override site palette ──────────────────────────── */
  --accent-vermillion: var(--tv-flame);
  --accent-kumkum:     var(--tv-flame-mid);
  --accent-ochre:      var(--tv-gold-mid);
  --accent-gold:       var(--tv-gold);
}

/* ---------------------------------------------------------------------------
   Background: deep sacred ash — warm dark parchment
   --------------------------------------------------------------------------- */
body { background: #c0aa88; }
body::before {
  background-image:
    repeating-linear-gradient(0deg,
      transparent 0px, transparent 3px,
      rgba(139,26,26,0.018) 3px, rgba(139,26,26,0.018) 4px),
    repeating-linear-gradient(0deg,
      transparent 0px, transparent 60px,
      rgba(139,26,26,0.028) 60px, rgba(139,26,26,0.028) 61px,
      transparent 61px, transparent 140px,
      rgba(184,134,11,0.020) 140px, rgba(184,134,11,0.020) 142px),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.38 0 0 0 0 0.28 0 0 0 0 0.12 0 0 0 0.12 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Header */
.site-header { border-bottom-color: rgba(139,26,26,0.30); }
.site-logo .mark { color: var(--tv-flame); }
.wordmark-tamil { color: var(--tv-flame); }
.site-nav a { color: var(--tv-ash); }
.site-nav a:hover { color: var(--tv-flame); }
a { color: var(--tv-flame); }
a:hover { color: var(--tv-flame-mid); }

/* ---------------------------------------------------------------------------
   Index page hero
   --------------------------------------------------------------------------- */
.tv-hero {
  text-align: center;
  padding: 3.5rem 1.5rem 2.5rem;
  max-width: 840px;
  margin: 0 auto;
}
.tv-hero h1 {
  font-family: var(--font-tamil);
  font-size: clamp(2.75rem,6vw,4.2rem);
  font-weight: 800;
  color: var(--tv-flame);
  line-height: 1.05;
  margin-bottom: .35rem;
}
.tv-hero h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.2rem,2.5vw,1.6rem);
  color: var(--ink-secondary);
  letter-spacing: .04em;
  margin-bottom: .5rem;
}
.tv-hero .era {
  font-size: .77rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--tv-flame-mid);
  margin-bottom: 1.75rem;
}
.tv-hero p {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--ink-secondary);
  margin-bottom: 1rem;
}

/* Stat row */
.tv-stat-row {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  margin: 2rem 0;
}
.tv-stat { text-align: center; }
.tv-stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--tv-flame);
  line-height: 1;
}
.tv-stat-label {
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: .2rem;
}

/* ---------------------------------------------------------------------------
   Section intro header
   --------------------------------------------------------------------------- */
.tv-intro-header {
  max-width: 840px;
  margin: 2.5rem auto 1.5rem;
  padding: 0 1.5rem;
  text-align: center;
}
.tv-intro-label {
  font-size: .72rem; letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--tv-flame-mid);
  margin-bottom: .35rem;
}
.tv-intro-label-tamil {
  font-family: var(--font-tamil);
  font-size: 1.25rem;
  color: var(--ink-secondary);
  margin-bottom: .5rem;
}
.tv-intro-heading {
  font-family: var(--font-display);
  font-size: clamp(1.3rem,2.5vw,1.75rem);
  color: var(--ink-primary);
  font-weight: 400;
  letter-spacing: .02em;
}
.tv-intro-heading em { color: var(--tv-flame); }

/* ---------------------------------------------------------------------------
   Section bands — accordion-style groupings
   --------------------------------------------------------------------------- */
.tv-section-band {
  max-width: 1100px;
  margin: 0 auto 3rem;
  padding: 0 1.5rem;
}

.tv-section-header {
  display: flex;
  align-items: stretch;
  gap: 0;
  border-radius: 4px 4px 0 0;
  overflow: hidden;
  margin-bottom: 0;
  border: 1px solid rgba(74,40,24,.22);
  border-bottom: none;
}
.tv-section-num {
  width: 3.5rem;
  min-width: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: #fff;
  background: var(--tv-sec-color, var(--tv-flame));
  letter-spacing: .05em;
}
.tv-section-info {
  flex: 1;
  padding: .9rem 1.25rem;
  background: var(--bg-paper);
}
.tv-section-name-tamil {
  font-family: var(--font-tamil);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--tv-sec-color, var(--tv-flame));
  margin-bottom: .1rem;
}
.tv-section-name-eng {
  font-family: var(--font-display);
  font-style: italic;
  font-size: .92rem;
  color: var(--ink-secondary);
  margin-bottom: .35rem;
}
.tv-section-desc {
  font-family: var(--font-display);
  font-size: .82rem;
  color: var(--ink-muted);
  line-height: 1.6;
}
.tv-section-hymn-range {
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: .3rem;
  font-family: var(--font-display);
}

/* ---------------------------------------------------------------------------
   Hymn cards grid — inside each section band
   --------------------------------------------------------------------------- */
.tv-hymns-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  border: 1px solid rgba(74,40,24,.18);
  border-top: none;
  border-radius: 0 0 4px 4px;
  padding: 1.25rem;
  background: rgba(232,212,168,0.25);
}

.tv-hymn-card {
  display: block;
  text-decoration: none;
  background: var(--bg-paper);
  border: 1px solid rgba(74,40,24,.20);
  border-radius: 4px;
  padding: 1.1rem 1.2rem;
  transition: transform .14s, box-shadow .14s;
  position: relative;
  overflow: hidden;
}
.tv-hymn-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--tv-card-accent, var(--tv-flame));
  transition: width .14s;
}
.tv-hymn-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-paper-hover);
}
.tv-hymn-card:hover::before { width: 5px; }

.tv-card-num {
  font-size: .67rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: .35rem;
  font-family: var(--font-display);
}
.tv-card-tamil {
  font-family: var(--font-tamil);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--tv-card-accent, var(--tv-flame));
  line-height: 1.25;
  margin-bottom: .1rem;
}
.tv-card-english {
  font-family: var(--font-display);
  font-style: italic;
  font-size: .88rem;
  color: var(--ink-secondary);
  margin-bottom: .1rem;
}
.tv-card-subtitle {
  font-family: var(--font-display);
  font-size: .78rem;
  color: var(--ink-muted);
  margin-bottom: .55rem;
  line-height: 1.4;
}
.tv-card-divider {
  text-align: center;
  color: var(--tv-card-accent, var(--tv-flame));
  opacity: .3;
  font-size: .75rem;
  margin: .45rem 0;
  letter-spacing: .25em;
}
.tv-card-incipit {
  font-family: var(--font-tamil);
  font-size: .8rem;
  color: var(--ink-muted);
  font-style: italic;
  margin-bottom: .5rem;
  line-height: 1.7;
}
.tv-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .73rem;
  color: var(--ink-muted);
  font-family: var(--font-display);
  font-style: italic;
  margin-top: .4rem;
  padding-top: .4rem;
  border-top: 1px solid rgba(74,40,24,.1);
}
.tv-card-cta {
  color: var(--tv-card-accent, var(--tv-flame));
  font-style: normal;
  transition: letter-spacing .14s;
}
.tv-hymn-card:hover .tv-card-cta { letter-spacing: .08em; }

/* Verse count badge */
.tv-verse-badge {
  display: inline-block;
  font-size: .67rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  padding: .15rem .45rem;
  border-radius: 2px;
  background: var(--tv-flame-pale2);
  color: var(--tv-flame-mid);
  border: 1px solid var(--tv-flame-pale);
  font-style: normal;
  font-family: var(--font-display);
}

/* ---------------------------------------------------------------------------
   Hymn page
   --------------------------------------------------------------------------- */
.tv-hymn-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem 1.5rem 5rem;
}

.tv-bc {
  display: flex; align-items: center; gap: .5rem;
  font-size: .875rem; color: var(--ink-muted);
  margin-bottom: 2rem; flex-wrap: wrap;
}
.tv-bc a { color: var(--ink-secondary); text-decoration: none; }
.tv-bc a:hover { color: var(--tv-flame); }
.tv-bc .sep { opacity: .45; }

/* Hymn header */
.tv-hymn-header {
  text-align: center;
  padding: 2rem 0 1.5rem;
  border-bottom: 1px solid rgba(74,40,24,.2);
  margin-bottom: 2.5rem;
}
.tv-hymn-num-label {
  font-size: .7rem; letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--tv-hymn-accent, var(--tv-flame-mid));
  margin-bottom: .6rem;
}
.tv-hymn-h1 {
  font-family: var(--font-tamil);
  font-size: clamp(2rem,5vw,3.2rem);
  font-weight: 800;
  color: var(--tv-hymn-accent, var(--tv-flame));
  line-height: 1.1;
  margin-bottom: .3rem;
}
.tv-hymn-h1-eng {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.1rem,2.5vw,1.5rem);
  color: var(--ink-secondary);
  margin-bottom: .25rem;
}
.tv-hymn-subtitle {
  font-family: var(--font-display);
  font-size: .95rem;
  color: var(--ink-muted);
  margin-bottom: 1rem;
}
.tv-hymn-meta-row {
  display: flex; justify-content: center;
  gap: 1.5rem; flex-wrap: wrap;
  font-size: .8rem; color: var(--ink-muted);
  font-family: var(--font-display); font-style: italic;
}
.tv-hymn-meta-row span::before {
  content: '·';
  margin-right: .75rem;
  opacity: .4;
}
.tv-hymn-meta-row span:first-child::before { content: ''; margin: 0; }

/* Metre badge */
.tv-metre-badge {
  display: inline-block;
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding: .18rem .55rem;
  border-radius: 2px;
  background: var(--tv-flame-pale2);
  color: var(--tv-flame-mid);
  border: 1px solid var(--tv-flame-pale);
  font-family: var(--font-display);
  margin-bottom: .6rem;
  font-style: normal;
}

/* Description block */
.tv-desc-block {
  background: var(--tv-flame-pale2);
  border: 1px solid rgba(139,26,26,.14);
  border-radius: 4px;
  padding: 1.4rem 1.6rem;
  margin-bottom: 2.5rem;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--ink-secondary);
  font-family: var(--font-display);
}

/* Tamil text panel */
.tv-tamil-panel {
  background: var(--bg-paper);
  border: 1px solid rgba(74,40,24,.22);
  border-radius: 4px;
  padding: 1.75rem 2rem;
  margin-bottom: 1.25rem;
}
.tv-panel-label {
  font-size: .68rem; letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: .9rem;
  font-family: var(--font-display);
}
.tv-tamil-text {
  font-family: var(--font-tamil);
  font-size: 1.25rem;
  line-height: 2.1;
  color: var(--ink-primary);
  white-space: pre-wrap;
}
.tv-transliteration {
  font-family: var(--font-display);
  font-style: italic;
  font-size: .95rem;
  line-height: 1.95;
  color: var(--ink-secondary);
  white-space: pre-wrap;
}
.tv-english-text {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 2;
  color: var(--ink-primary);
  white-space: pre-wrap;
}
.tv-urai-text {
  font-family: var(--font-tamil);
  font-size: 1rem;
  line-height: 2;
  color: var(--ink-secondary);
}
.tv-alt-text {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 1rem;
  line-height: 1.95;
  color: var(--ink-secondary);
}
.tv-note-text {
  font-family: var(--font-display);
  font-size: .92rem;
  line-height: 1.85;
  color: var(--ink-secondary);
}

/* Collapsible panels */
.tv-collapsible {
  background: var(--bg-paper);
  border: 1px solid rgba(74,40,24,.2);
  border-radius: 4px;
  margin-bottom: .75rem;
  overflow: hidden;
}
.tv-panel-toggle {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  padding: 1rem 1.5rem;
  font-family: var(--font-display);
  font-size: .9rem;
  color: var(--ink-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(74,40,24,.12);
  transition: background .12s;
}
.tv-panel-toggle:hover { background: var(--tv-flame-pale2); }
.tv-panel-toggle .arrow {
  font-size: .75rem;
  transition: transform .2s;
  color: var(--tv-flame-mid);
}
.tv-panel-toggle.open .arrow { transform: rotate(180deg); }
.tv-panel-body {
  padding: 1.2rem 1.5rem 1.4rem;
  display: none;
}
.tv-panel-body.open { display: block; }

/* Verse navigation */
.tv-hymn-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(74,40,24,.18);
}
.tv-nav-link {
  display: block;
  padding: 1rem 1.2rem;
  background: var(--bg-paper);
  border: 1px solid rgba(74,40,24,.2);
  border-radius: 4px;
  text-decoration: none;
  color: var(--ink-secondary);
  transition: border-color .15s, background .15s;
}
.tv-nav-link:hover {
  border-color: var(--tv-flame-mid);
  background: var(--tv-flame-pale2);
}
.tv-nav-link.next { text-align: right; }
.tv-nav-link.disabled { opacity: .3; pointer-events: none; }
.tv-nav-dir {
  font-size: .7rem; letter-spacing: .25em;
  text-transform: uppercase; color: var(--ink-muted);
  margin-bottom: .3rem; font-family: var(--font-display);
}
.tv-nav-tamil {
  font-family: var(--font-tamil);
  font-size: .95rem;
  color: var(--tv-flame);
}
.tv-nav-eng {
  font-family: var(--font-display);
  font-style: italic;
  font-size: .78rem;
  color: var(--ink-muted);
}

/* ---------------------------------------------------------------------------
   About page
   --------------------------------------------------------------------------- */
.tv-about-page {
  max-width: 780px;
  margin: 0 auto;
  padding: 2rem 1.5rem 5rem;
}
.tv-about-page h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--tv-flame);
  margin: 2rem 0 .75rem;
  border-bottom: 1px solid var(--tv-flame-pale);
  padding-bottom: .35rem;
}
.tv-about-page h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ink-primary);
  margin: 1.5rem 0 .5rem;
}
.tv-about-page p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.9;
  color: var(--ink-secondary);
  margin-bottom: 1rem;
}
.tv-about-page blockquote {
  border-left: 3px solid var(--tv-flame-pale);
  padding-left: 1.25rem;
  margin: 1rem 0;
  font-style: italic;
  color: var(--ink-secondary);
  font-family: var(--font-display);
}

/* Section colour overrides for the index cards */
.tv-hymn-card[data-sec="1"] { --tv-card-accent: var(--tv-sec1); }
.tv-hymn-card[data-sec="2"] { --tv-card-accent: var(--tv-sec2); }
.tv-hymn-card[data-sec="3"] { --tv-card-accent: var(--tv-sec3); }
.tv-hymn-card[data-sec="4"] { --tv-card-accent: var(--tv-sec4); }
.tv-hymn-card[data-sec="5"] { --tv-card-accent: var(--tv-sec5); }

@media (max-width: 600px) {
  .tv-hymns-grid { grid-template-columns: 1fr; padding: .9rem; }
  .tv-hymn-nav { grid-template-columns: 1fr; }
  .tv-nav-link.next { text-align: left; }
  .tv-stat-row { gap: 1.5rem; }
}