/* ==========================================================================
   களவழி நாற்பது · Kaḷavaḻi Nāṟpatu — The Battlefield Forty
   40 puram poems on the battle of Kaḻumalam · c. 1st–5th century CE
   Poet: பொய்கையார் (Poykaiyār) · Patiṉeṇkīḻkaṇakku

   Title: களம் (kaḷam) = battlefield / threshing floor; வழி (vaḻi) = way/path;
   நாற்பது (nāṟpatu) = forty.
   The only puram work in the Eighteen Minor Classics — forty poems on
   the battle in which Chola king Kōccēṅkaṇāṉ defeated the Chera king
   Kaṇaikkāl Irumpoṟai. All forty poems end with the word களத்து (kalaṭṭu).

   Visual identity: The battlefield — blood-red, dark iron, bronze-fire.
   Elephant tusks, war-drums, fallen banners, blood-rivers, dawn on corpses.
   A world of violence described with terrible exactness and dark humour.
   Palette:
   — deep war-crimson (blood, battlefield, the Chola king's red eyes)
   — dark iron-grey (armour, elephant hide, sword-steel)
   — battlefield-amber (torches, bronze weapons, dawn light on ruin)
   — bone-ivory (text, the aftermath, what remains)

   Mark: a war-drum with a sword crossing it — the two symbols of the
   battlefield that recur most in the poems.
   ========================================================================== */

:root {
  /* ── War-crimson (primary) ──────────────────────────── */
  --kv-crimson:         #2a0810;
  --kv-crimson-mid:     #3d1018;
  --kv-crimson-bright:  #7a1820;
  --kv-crimson-pale:    rgba(42, 8, 16, 0.12);

  /* ── Iron-dark (header / deep bg) ──────────────────── */
  --kv-iron:            #161018;
  --kv-iron-mid:        #201820;
  --kv-iron-pale:       rgba(22, 16, 24, 0.65);

  /* ── Battlefield-amber (accent) ─────────────────────── */
  --kv-amber:           #c87820;
  --kv-amber-mid:       #a06018;
  --kv-amber-pale:      rgba(200, 120, 32, 0.15);

  /* ── Bone-ivory (text / light) ──────────────────────── */
  --kv-ivory:           #f0e4cc;
  --kv-ivory-mid:       #d8c8a8;
  --kv-ivory-pale:      rgba(240, 228, 204, 0.18);

  /* ── Muted dust (secondary text) ───────────────────── */
  --kv-dust:            #9a8870;
  --kv-dust-pale:       rgba(154, 136, 112, 0.40);

  /* ── Site overrides ─────────────────────────────────── */
  --accent-vermillion:  var(--kv-crimson-bright);
  --accent-kumkum:      var(--kv-crimson-mid);
  --accent-ochre:       var(--kv-amber-mid);
  --accent-gold:        var(--kv-amber);

  --ink-primary:        var(--kv-ivory);
  --ink-secondary:      var(--kv-ivory-mid);
  --ink-muted:          var(--kv-dust);
  --border-subtle:      rgba(154, 136, 112, 0.18);
  --bg-paper:           #2e1c20;
  --shadow-card:        0 2px 18px rgba(10, 4, 8, 0.55);
}

/* ── Body ────────────────────────────────────────────────── */
body {
  background: var(--kv-crimson);
  color: var(--kv-ivory);
}

body::before {
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent 0px, transparent 3px,
      rgba(200, 120, 32, 0.025) 3px, rgba(200, 120, 32, 0.025) 4px
    ),
    repeating-linear-gradient(
      0deg,
      transparent 0px, transparent 60px,
      rgba(200, 120, 32, 0.035) 60px, rgba(200, 120, 32, 0.035) 61px
    );
}

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  background: linear-gradient(180deg, var(--kv-iron) 0%, var(--kv-iron-mid) 100%);
  border-bottom: 2px solid rgba(200, 120, 32, 0.35);
}
.wordmark-tamil { color: var(--kv-amber); }
.wordmark-roman { color: var(--kv-ivory-mid); }
.site-nav a { color: var(--kv-dust); }
.site-nav a:hover { color: var(--kv-ivory); }

/* ── Hero ───────────────────────────────────────────────── */
.kv-hero {
  background: linear-gradient(160deg, var(--kv-iron) 0%, var(--kv-crimson-mid) 60%, #3a0c10 100%);
  padding: 3.5rem 1.5rem 3rem;
  text-align: center;
  border-bottom: 1px solid rgba(200, 120, 32, 0.2);
}
.kv-hero h1 {
  font-family: var(--font-tamil);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--kv-amber);
  margin-bottom: 0.4rem;
  line-height: 1.1;
  text-shadow: 0 2px 24px rgba(200, 120, 32, 0.35);
}
.kv-hero-roman {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  color: var(--kv-ivory-mid);
  letter-spacing: 0.06em;
  margin-bottom: 0.3rem;
}
.kv-hero-meaning {
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--kv-dust);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.kv-hero p {
  max-width: 680px;
  margin: 0 auto 0.8rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--kv-ivory-mid);
}
.kv-hero-mark {
  margin-bottom: 1.5rem;
}

/* ── Stat gems ──────────────────────────────────────────── */
.kv-gems {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  margin: 2rem 0 0;
  flex-wrap: wrap;
}
.kv-gem { text-align: center; }
.kv-gem-num {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--kv-amber);
  line-height: 1;
}
.kv-gem-label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--kv-dust);
  margin-top: 0.25rem;
}

/* ── Section header ─────────────────────────────────────── */
.kv-section-head {
  max-width: 960px;
  margin: 2.5rem auto 1rem;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.kv-section-rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(200,120,32,0.4), transparent);
}
.kv-section-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--kv-amber);
}

/* ── Poem grid ──────────────────────────────────────────── */
.kv-grid {
  max-width: 960px;
  margin: 0 auto 3rem;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.85rem;
}

/* ── Poem tile ──────────────────────────────────────────── */
.kv-tile {
  background: var(--bg-paper);
  border: 1px solid var(--border-subtle);
  border-top: 3px solid var(--kv-amber);
  border-radius: 3px;
  padding: 1rem 1.1rem 1rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-height: 130px;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
  box-shadow: var(--shadow-card);
}
.kv-tile:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(10, 4, 8, 0.7);
  border-color: var(--kv-amber);
  background: #3a2228;
}
.kv-tile-num {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--kv-amber);
}
.kv-tile-theme {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--kv-ivory-mid);
  line-height: 1.4;
  flex: 1;
}
.kv-tile-incipit {
  font-family: var(--font-tamil);
  font-size: 0.85rem;
  color: var(--kv-ivory);
  line-height: 1.45;
  margin-top: 0.3rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.kv-tile-ending {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--kv-dust);
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-subtle);
  font-style: italic;
}

/* ── Poem page (poem.html) ──────────────────────────────── */
.kv-poem-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}
.kv-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--kv-dust);
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.kv-breadcrumb a { color: var(--kv-ivory-mid); text-decoration: none; }
.kv-breadcrumb a:hover { color: var(--kv-amber); }
.kv-breadcrumb .sep { opacity: 0.4; }

/* Banner across top of poem */
.kv-poem-banner {
  background: linear-gradient(135deg, var(--kv-iron) 0%, var(--kv-crimson-mid) 100%);
  border: 1px solid rgba(200,120,32,0.25);
  border-radius: 4px;
  padding: 1.1rem 1.5rem;
  margin-bottom: 1rem;
  text-align: center;
}
.kv-poem-num-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--kv-amber);
  margin-bottom: 0.3rem;
}
.kv-poem-theme-display {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--kv-ivory);
}

/* Metadata strip */
.kv-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  background: rgba(200,120,32,0.07);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  margin-bottom: 1.75rem;
}
.kv-meta-item { font-size: 0.85rem; line-height: 1.5; }
.kv-meta-label {
  font-family: var(--font-display);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--kv-amber);
  margin-bottom: 0.2rem;
}
.kv-meta-value { color: var(--kv-ivory); font-size: 0.9rem; }

/* Palm-leaf card */
.kv-poem-card {
  background: var(--bg-paper);
  background-image: repeating-linear-gradient(0deg,
    rgba(200,120,32,0.025) 0px, rgba(200,120,32,0.025) 1px,
    transparent 1px, transparent 8px);
  border: 1px solid rgba(200,120,32,0.2);
  border-radius: 4px;
  padding: 2.5rem 2.5rem 2rem;
  box-shadow: 0 4px 28px rgba(10, 4, 8, 0.6);
  position: relative;
  overflow: hidden;
}
.kv-poem-card::before,
.kv-poem-card::after {
  content: '';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--kv-crimson);
  border: 1.5px solid rgba(200,120,32,0.4);
}
.kv-poem-card::before { left: 14px; }
.kv-poem-card::after  { right: 14px; }

/* ── Paper-card text overrides: dark ink on cream background ── */
.kv-poem-card .kv-layer-label { color: var(--kv-amber-mid); }
.kv-poem-card .kv-tamil        { color: #1a0c04; }
.kv-poem-card .kv-translit     { color: #3a2010; }
.kv-poem-card .kv-english      { color: #1a0c04; }
.kv-poem-card .kv-note         { color: #3a2010; }
.kv-poem-card .kv-poem-counter { color: #5a3a18; }
.kv-poem-card .kv-refrain-tag  { color: #5a3a18; }

.kv-poem-counter {
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--kv-dust);
  margin-bottom: 0.5rem;
}
.kv-poem-counter .num {
  display: inline-block;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--kv-amber);
  letter-spacing: 0;
  vertical-align: middle;
  margin: 0 0.3em;
}

.kv-layer { margin-bottom: 1.75rem; padding-bottom: 1.75rem; border-bottom: 1px solid var(--border-subtle); }
.kv-layer:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.kv-layer-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--kv-amber);
  margin-bottom: 0.75rem;
}
.kv-tamil {
  font-family: var(--font-tamil);
  font-size: 1.35rem;
  line-height: 1.85;
  color: var(--kv-ivory);
  white-space: pre-line;
}
.kv-translit {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--kv-ivory-mid);
  white-space: pre-line;
  letter-spacing: 0.01em;
}
.kv-english {
  font-family: var(--font-display);
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--kv-ivory);
  white-space: pre-line;
}
.kv-note {
  background: rgba(200,120,32,0.07);
  border-left: 3px solid var(--kv-amber);
  padding: 0.9rem 1.1rem;
  border-radius: 2px;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--kv-ivory-mid);
}

/* Refrain tag */
.kv-refrain-tag {
  display: inline-block;
  background: rgba(200,120,32,0.15);
  border: 1px solid rgba(200,120,32,0.3);
  border-radius: 3px;
  padding: 0.15rem 0.55rem;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-style: italic;
  letter-spacing: 0.08em;
  color: var(--kv-amber);
  margin-top: 0.5rem;
  display: block;
}

/* Prev/Next nav */
.kv-poem-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}
.kv-nav-link {
  display: block;
  padding: 1rem 1.25rem;
  background: var(--bg-paper);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  text-decoration: none;
  color: inherit;
  transition: all 0.18s;
}
.kv-nav-link:hover { border-color: var(--kv-amber); transform: translateY(-2px); }
.kv-nav-link.next { text-align: right; }
.kv-nav-link.disabled { opacity: 0.3; pointer-events: none; }
.kv-nav-dir {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--kv-dust);
  margin-bottom: 0.3rem;
}
.kv-nav-theme {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.92rem;
  color: var(--kv-amber);
}
.kv-nav-num {
  font-size: 0.8rem;
  color: var(--kv-dust);
  margin-top: 0.2rem;
}

/* ── About page ─────────────────────────────────────────── */
.kv-about {
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}
.kv-about h2 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--kv-amber);
  border-bottom: 1px solid rgba(200,120,32,0.2);
  padding-bottom: 0.4rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}
.kv-about p {
  color: var(--kv-ivory-mid);
  line-height: 1.9;
  font-size: 0.98rem;
  margin-bottom: 1rem;
}
.kv-about table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin: 1.2rem 0;
}
.kv-about th {
  text-align: left;
  color: var(--kv-amber);
  border-bottom: 1px solid rgba(200,120,32,0.3);
  padding: 0.45rem 0.75rem;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.kv-about td {
  padding: 0.5rem 0.75rem;
  color: var(--kv-ivory-mid);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}
.kv-about tr:last-child td { border-bottom: none; }

/* ── Footer ─────────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid rgba(200,120,32,0.15);
  color: var(--kv-dust);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  margin-top: 2rem;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 600px) {
  .kv-hero h1 { font-size: 2.2rem; }
  .kv-poem-card { padding: 1.75rem 1.1rem; }
  .kv-tamil { font-size: 1.15rem; }
  .kv-poem-nav { grid-template-columns: 1fr; }
}
