/* ==========================================================================
   ஐந்திணை ஐம்பது · Aintiṇai Aimpatu — Fifty on the Five Landscapes
   50 akam poems · c. 1st–5th century CE
   Author: Māmulaṉār · Patiṉeṇkīḻkaṇakku collection

   Title: ஐந்திணை (aintiṇai) = the five tiṇai/landscapes; ஐம்பது (aimpatu) = fifty.
   Fifty poems across the five classical akam landscapes — ten poems per tiṇai.

   Visual identity: Five landscapes, five palettes. The overall design uses a
   warm parchment base with a rotating accent per tiṇai:
   — Kuṟiñci (mountain, union): deep purple-violet (the strobilanthes flower)
   — Mullai (forest, waiting): forest green (jasmine, bamboo)
   — Marutam (river-fields, quarrel): river-blue (lotus, water)
   — Neytal (seashore, longing): sea-blue/teal (the blue sea, heron)
   — Pālai (wasteland, separation): burnt umber/ochre (dry earth, sun)

   The hero mark: five dots arranged in a ring — the five tiṇai, each a point
   in the circle of love. Simple, suggestive, unique.
   ========================================================================== */

:root {
  /* ── Warm base (parchment) ──────────────────────────── */
  --at-parchment:       #f2e8d5;
  --at-parchment-mid:   #e5d8c0;
  --at-parchment-deep:  #d0c0a0;

  /* ── Ink ────────────────────────────────────────────── */
  --at-ink:             #1a1008;
  --at-ink-mid:         #3a2818;
  --at-ink-pale:        rgba(26, 16, 8, 0.52);

  /* ── Primary header/frame colour ────────────────────── */
  --at-primary:         #2a1848;
  --at-primary-mid:     #3a2858;
  --at-primary-bright:  #5a4880;

  /* ── Tiṇai accent colours ───────────────────────────── */
  --at-kurinji:         #6a2888;   /* purple — strobilanthes */
  --at-kurinji-pale:    rgba(106, 40, 136, 0.10);
  --at-kurinji-border:  rgba(106, 40, 136, 0.35);

  --at-mullai:          #2a6830;   /* forest green — jasmine */
  --at-mullai-pale:     rgba(42, 104, 48, 0.10);
  --at-mullai-border:   rgba(42, 104, 48, 0.35);

  --at-marutam:         #1848a0;   /* river blue — lotus */
  --at-marutam-pale:    rgba(24, 72, 160, 0.10);
  --at-marutam-border:  rgba(24, 72, 160, 0.30);

  --at-neytal:          #1878a8;   /* sea teal — heron */
  --at-neytal-pale:     rgba(24, 120, 168, 0.10);
  --at-neytal-border:   rgba(24, 120, 168, 0.30);

  --at-palai:           #9a4808;   /* burnt ochre — wasteland */
  --at-palai-pale:      rgba(154, 72, 8, 0.10);
  --at-palai-border:    rgba(154, 72, 8, 0.30);

  /* ── Site overrides ─────────────────────────────────── */
  --accent-vermillion:  var(--at-primary);
  --accent-kumkum:      var(--at-primary-mid);
  --accent-ochre:       #6a4808;
  --accent-gold:        #9a6818;
}

/* ── Body ────────────────────────────────────────────────── */
body {
  background: var(--at-parchment);
  color: var(--at-ink);
}

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  background: var(--at-primary);
  border-bottom: 2px solid rgba(90, 72, 128, 0.50);
}
/* wordmark-tamil: soft lavender on deep-purple header */
.site-logo .wordmark-tamil {
  color: #d8c8f0;
}

.site-logo .wordmark-roman {
  color: #d8c8f0;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: #d8c8f0;
  border-bottom-color: #a090c8;
}

/* ── Hero ───────────────────────────────────────────────── */
.at-hero {
  background: linear-gradient(160deg, var(--at-primary) 0%, var(--at-primary-mid) 50%, #3a2060 100%);
  color: #f0e8d8;
  padding: 3.5rem 1.5rem 3rem;
  text-align: center;
}
.at-hero-mark { margin-bottom: 1.5rem; }
.at-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.25rem;
}
.at-hero-roman {
  font-size: 1.15rem;
  font-style: italic;
  color: #d8c8f0;
  margin: 0 0 0.4rem;
}
.at-hero-meaning {
  font-size: 1rem;
  color: rgba(240, 232, 216, 0.78);
  margin: 0 0 1.2rem;
}
.at-hero p {
  max-width: 640px;
  margin: 0 auto 0.9rem;
  font-size: 0.97rem;
  line-height: 1.7;
  color: rgba(240, 232, 216, 0.82);
}

/* ── Stat row ───────────────────────────────────────────── */
.at-stat-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 2rem;
  margin-top: 2rem;
}
.at-stat { text-align: center; min-width: 80px; }
.at-stat-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: #d8c8f0;
  line-height: 1.2;
}
.at-stat-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(240, 232, 216, 0.55);
  margin-top: 0.2rem;
}

/* ── Five tiṇai display ─────────────────────────────────── */
.at-tinai-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid var(--at-parchment-mid);
}
.at-tinai-tab {
  flex: 1;
  min-width: 120px;
  padding: 0.9rem 1rem 0.8rem;
  text-align: center;
  border-right: 1px solid var(--at-parchment-mid);
  background: #fff;
}
.at-tinai-tab:last-child { border-right: none; }
.at-tinai-tab-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  margin-bottom: 0.4rem;
}
.at-tinai-tab[data-tinai="kuṟiñci"] .at-tinai-tab-dot { background: var(--at-kurinji); }
.at-tinai-tab[data-tinai="mullai"]  .at-tinai-tab-dot { background: var(--at-mullai); }
.at-tinai-tab[data-tinai="marutam"] .at-tinai-tab-dot { background: var(--at-marutam); }
.at-tinai-tab[data-tinai="neytal"]  .at-tinai-tab-dot { background: var(--at-neytal); }
.at-tinai-tab[data-tinai="pālai"]   .at-tinai-tab-dot { background: var(--at-palai); }

.at-tinai-tab-tamil {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--at-ink);
}
.at-tinai-tab-roman {
  display: block;
  font-size: 0.80rem;
  font-style: italic;
  color: var(--at-ink-pale);
}
.at-tinai-tab-eng {
  display: block;
  font-size: 0.75rem;
  color: var(--at-ink-pale);
  margin-top: 0.1rem;
}
.at-tinai-tab-count {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--at-ink-pale);
  margin-top: 0.3rem;
  display: block;
}

/* ── Poems header ───────────────────────────────────────── */
.at-poems-header {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 0.5rem;
  border-top: 1px solid var(--at-parchment-mid);
}
.at-poems-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--at-primary);
  margin: 0 0 0.35rem;
}
.at-poems-header p {
  font-size: 0.88rem;
  color: var(--at-ink-pale);
  margin: 0;
}

/* ── Main poem list ─────────────────────────────────────── */
.at-poems-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

/* ── Tiṇai section divider ──────────────────────────────── */
.at-section-label {
  font-size: 0.80rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  display: inline-block;
  background: var(--at-parchment);
  padding: 0.1rem 0.8rem 0.1rem 0;
  position: relative;
  top: -0.6rem;
}
.at-section-hr {
  border: none;
  border-top: 2px solid rgba(42, 24, 72, 0.12);
  margin: 0.6rem 0 0;
}

/* ── Individual poem card ───────────────────────────────── */
.at-poem {
  background: #fff;
  border: 1px solid rgba(42, 24, 72, 0.09);
  border-radius: 6px;
  padding: 1.1rem 1.3rem 1.0rem;
  box-shadow: 0 1px 5px rgba(42, 24, 72, 0.05);
}

/* tiṇai-specific left border */
.at-poem[data-tinai="kuṟiñci"] { border-left: 4px solid var(--at-kurinji); }
.at-poem[data-tinai="mullai"]  { border-left: 4px solid var(--at-mullai); }
.at-poem[data-tinai="marutam"] { border-left: 4px solid var(--at-marutam); }
.at-poem[data-tinai="neytal"]  { border-left: 4px solid var(--at-neytal); }
.at-poem[data-tinai="pālai"]   { border-left: 4px solid var(--at-palai); }

/* ── Poem header ────────────────────────────────────────── */
.at-poem-header {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}
.at-poem-num {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--at-ink-pale);
  min-width: 1.8rem;
  flex-shrink: 0;
}
.at-tinai-badge {
  font-size: 0.73rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 3px;
  padding: 0.14rem 0.5rem;
  flex-shrink: 0;
}
.at-poem[data-tinai="kuṟiñci"] .at-tinai-badge { background: var(--at-kurinji-pale); color: var(--at-kurinji); }
.at-poem[data-tinai="mullai"]  .at-tinai-badge { background: var(--at-mullai-pale);   color: var(--at-mullai); }
.at-poem[data-tinai="marutam"] .at-tinai-badge { background: var(--at-marutam-pale);  color: var(--at-marutam); }
.at-poem[data-tinai="neytal"]  .at-tinai-badge { background: var(--at-neytal-pale);   color: var(--at-neytal); }
.at-poem[data-tinai="pālai"]   .at-tinai-badge { background: var(--at-palai-pale);    color: var(--at-palai); }

.at-poem-speaker {
  font-size: 0.78rem;
  color: var(--at-ink-pale);
  font-style: italic;
}
.at-poem-theme {
  font-size: 0.88rem;
  color: var(--at-ink-mid);
  font-style: italic;
  flex-basis: 100%;
  margin-top: -0.1rem;
}

/* ── Poem layers ────────────────────────────────────────── */
.at-poem-body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.at-layer {
  border: 1px solid rgba(42, 24, 72, 0.08);
  border-radius: 4px;
  overflow: hidden;
}
.at-layer-toggle {
  display: flex;
  align-items: center;
  padding: 0.45rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--at-primary-bright);
  background: rgba(42, 24, 72, 0.04);
  cursor: pointer;
  user-select: none;
  list-style: none;
}
.at-layer-toggle::-webkit-details-marker { display: none; }
.at-layer[open] .at-layer-toggle {
  background: rgba(42, 24, 72, 0.08);
  color: var(--at-primary);
}
.at-layer-content { padding: 0.7rem 0.95rem; background: #fff; }
.at-tamil-verse {
  font-size: 1.0rem;
  line-height: 1.9;
  color: var(--at-ink);
  font-weight: 500;
}
.at-translit-verse {
  font-size: 0.92rem;
  font-style: italic;
  line-height: 1.82;
  color: var(--at-ink-mid);
}
.at-english-prose {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--at-ink-mid);
}
.at-note {
  font-size: 0.86rem;
  line-height: 1.70;
  color: var(--at-ink-pale);
  font-style: italic;
}

/* ── Footer ─────────────────────────────────────────────── */
.site-footer {
  background: var(--at-primary);
  color: rgba(240, 232, 216, 0.65);
}
.site-footer a { color: #d8c8f0; }

/* ── About page ─────────────────────────────────────────── */
.at-about-hero {
  background: linear-gradient(160deg, var(--at-primary) 0%, var(--at-primary-mid) 100%);
  color: #f0e8d8;
  padding: 3rem 1.5rem 2.5rem;
  text-align: center;
}
.at-about-hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: #fff;
  margin: 1rem 0 0.25rem;
}
.at-about-subtitle {
  font-size: 1rem;
  font-style: italic;
  color: #d8c8f0;
  margin: 0;
}
.at-about-main {
  max-width: 780px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}
.at-about-section {
  margin-bottom: 2.5rem;
}
.at-about-section h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--at-primary);
  border-bottom: 2px solid rgba(42, 24, 72, 0.10);
  padding-bottom: 0.4rem;
  margin-bottom: 1rem;
}
.at-about-section p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--at-ink-mid);
  margin-bottom: 0.9rem;
}
.at-tinai-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.8rem 0 1rem;
  font-size: 0.88rem;
}
.at-tinai-table th {
  text-align: left;
  padding: 0.4rem 0.7rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--at-ink-pale);
  border-bottom: 1px solid var(--at-parchment-mid);
}
.at-tinai-table td {
  padding: 0.55rem 0.7rem;
  border-bottom: 1px solid rgba(42, 24, 72, 0.06);
  color: var(--at-ink-mid);
  vertical-align: top;
}
.at-tinai-table tr:last-child td { border-bottom: none; }
.at-tinai-swatch {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.at-about-nav { margin-top: 3rem; text-align: center; }
.at-about-cta {
  display: inline-flex;
  align-items: center;
  background: var(--at-primary);
  color: #d8c8f0;
  padding: 0.75rem 1.8rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.15s;
}
.at-about-cta:hover { background: var(--at-primary-bright); }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 600px) {
  .at-hero { padding: 2.5rem 1rem 2rem; }
  .at-poems-main { padding: 0.8rem 0.8rem 3rem; }
  .at-poem { padding: 0.9rem 0.9rem 0.8rem; }
  .at-tinai-tab { min-width: 80px; padding: 0.7rem 0.5rem; }
  .at-tinai-table { font-size: 0.82rem; }
}