/* ── Design tokens ── */
:root {
  /* layout */
  --stripe-w:     54px;
  --max-w:        720px;
  --gutter:       1.5rem;
  /* light palette */
  --bg:           #faf7f0;
  --bg-alt:       #f0e9dc;
  --bg-card:      #f3ede2;
  --stripe-bg:    #231208;
  --accent:       #b5531a;
  --accent-hover: #8f4114;
  --text:         #1c1917;
  --text-muted:   #726b65;
  --border:       #dfd5c5;
  --pill-bg:      #1c1917;
  --pill-fg:      #faf7f0;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:           #140f0c;
    --bg-alt:       #1a1108;
    --bg-card:      #1d1612;
    --stripe-bg:    #080503;
    --accent:       #d4763a;
    --accent-hover: #e08040;
    --text:         #ede6db;
    --text-muted:   #9a9189;
    --border:       #2a2219;
    --pill-bg:      #ede6db;
    --pill-fg:      #140f0c;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg:           #140f0c;
  --bg-alt:       #1a1108;
  --bg-card:      #1d1612;
  --stripe-bg:    #080503;
  --accent:       #d4763a;
  --accent-hover: #e08040;
  --text:         #ede6db;
  --text-muted:   #9a9189;
  --border:       #2a2219;
  --pill-bg:      #ede6db;
  --pill-fg:      #140f0c;
  color-scheme: dark;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 18px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'EB Garamond', Georgia, serif;
  display: flex;
  flex-direction: row;
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }

/* ── Layout: fixed left stripe (woven textile crosshatch) ── */
.stripe {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--stripe-w);
  background-color: var(--stripe-bg);
  background-image:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 5px,
      rgba(181, 83, 26, 0.22) 5px,
      rgba(181, 83, 26, 0.22) 6px
    ),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 5px,
      rgba(181, 83, 26, 0.22) 5px,
      rgba(181, 83, 26, 0.22) 6px
    );
  z-index: 10;
}

.page {
  margin-left: var(--stripe-w);
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  min-height: 100vh;
}

/* Shared horizontal gutter (3rem desktop, safe-area-aware on mobile) */
.h-pad {
  padding-left: 3rem;
  padding-right: 3rem;
}

/* ── Site header ── */
.site-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1.75rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.logo {
  display: block;
  text-decoration: none;
  color: var(--text);
  line-height: 1;
}
.logo-tamil {
  display: block;
  font-family: 'Noto Serif Tamil', serif;
  font-weight: 400;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  margin-bottom: 0.06rem;
}
.logo-latin {
  display: block;
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: -0.065em;
  color: var(--text);
}
/* ── Inline PDF embed ─────────────────────────────────────────────────────── */
.pdf-embed {
  margin: 1.5rem 0;
}
.pdf-embed iframe {
  display: block;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 3px;
}
.pdf-fallback {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.logo-roots {
  display: block;
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 400;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: -0.15rem;
}
.logo-tag {
  display: block;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.67rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-top: 0.4rem;
}

nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  flex-wrap: wrap;
  padding-top: 0.15rem;
}
nav a {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.015em;
  transition: color 0.15s;
}
nav a:hover,
nav a[aria-current='page'] { color: var(--accent); }

/* ── Main / content wrapper ── */
main { flex: 1; }

.content {
  max-width: var(--max-w);
  padding-block: 3.5rem 5rem;
}

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.25;
  font-weight: 500;
  color: var(--text);
  text-wrap: balance;
}
h1 {
  font-size: 2rem;
  margin: 0 0 1.5rem;
  letter-spacing: -0.025em;
}
h2 {
  font-size: 1.35rem;
  margin: 2.75rem 0 0.75rem;
  letter-spacing: -0.015em;
}
h3 {
  font-size: 1.1rem;
  margin: 2rem 0 0.5rem;
}
p { margin: 0 0 1.25rem; }
a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
a:hover { color: var(--accent-hover); }
strong { font-weight: 600; }
em     { font-style: italic; }
hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* ── Blockquote ── */
blockquote {
  margin: 1.75rem 0;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--accent);
  background: var(--bg-alt);
  font-style: italic;
}
blockquote p { margin: 0; }

/* ── Lists ── */
ul, ol { padding-left: 1.5rem; margin: 0 0 1.25rem; }
li { margin-bottom: 0.4rem; }

/* ── Native audio player ── */
audio {
  width: 100%;
  margin: 0.75rem 0 0.25rem;
  accent-color: var(--accent);
}
.audio-caption {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: 'Inter', system-ui, sans-serif;
  margin-bottom: 1.75rem;
  font-style: normal;
}

/* ── Oral-history recording blocks ── */
.recordings      { margin: 1.5rem 0 0.5rem; }
.recording-entry { margin: 0; }
.recording-title {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  margin: 0 0 0.25rem;
}
.recording-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0 0 0.6rem;
}
.recording {
  margin: 0;
  padding: 0;
  border: none;
}
.recording iframe {
  display: block;
  width: 100%;
  height: 80px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-alt);
}
.recording figcaption {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: 'Inter', system-ui, sans-serif;
  margin-top: 0.35rem;
}
.recording-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5rem 0;
}

/* ── Home page: hero ── */
.kicker {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero {
  padding-block: 4.5rem 3.75rem;
  border-bottom: 1px solid var(--border);
  max-width: 1040px;
}
.hero-hl {
  font-family: 'EB Garamond', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(2.6rem, 5.5vw, 4.1rem);
  line-height: 1.14;
  color: var(--text);
  margin: 0 0 2.5rem;
  text-wrap: balance;
  letter-spacing: -0.01em;
  max-width: 820px;
}
.hero-body {
  display: flex;
  gap: 3.5rem;
  flex-wrap: wrap;
}
.hero-p {
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 1.175rem;
  line-height: 1.77;
  color: var(--text);
  flex: 1;
  min-width: 260px;
  margin: 0;
  max-width: 520px;
}
.hero-aside {
  flex: 0 0 220px;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  padding-top: 0.2rem;
}
.hero-aside-p {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--pill-bg);
  color: var(--pill-fg);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.74rem;
  font-weight: 500;
  padding: 0.38rem 1rem;
  border-radius: 999px;
  text-decoration: none;
  letter-spacing: 0.01em;
  align-self: flex-start;
  transition: opacity 0.15s;
}
.pill:hover { opacity: 0.72; }

/* ── Home page: archive grid ── */
.section-label {
  padding-block: 2.25rem 1.1rem;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

/* Gap-as-border grid technique */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border);
}
.card {
  background: var(--bg);
  padding: 2rem 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  transition: background 0.12s;
}
.card:hover { background: var(--bg-card); }

.card-eye {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.67rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.card-title {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.025em;
  text-wrap: balance;
  margin: 0;
}
.card-desc {
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.62;
  flex: 1;
  margin: 0.2rem 0 0;
}
.card-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--pill-bg);
  color: var(--pill-fg);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.71rem;
  font-weight: 500;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  text-decoration: none;
  margin-top: 0.7rem;
  align-self: flex-start;
  transition: opacity 0.15s;
  letter-spacing: 0.01em;
}
.card-btn:hover { opacity: 0.7; }

/* ── Home page: stats band ── */
.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  background: var(--border);
  border-top: 1px solid var(--border);
}
.stat {
  flex: 1;
  min-width: 130px;
  padding: 1.75rem 2.25rem;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.stat-n {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.05em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat-l {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.71rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-top: 0.3rem;
}

/* ── Footer ── */
footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding-block: 1.4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.75rem;
  color: var(--text-muted);
}
footer a { color: var(--text-muted); text-decoration: none; transition: color 0.15s; }
footer a:hover { color: var(--accent); }

/* ── Contribute form ── */
.contrib-form {
  margin: 1.5rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form-row > label:first-child {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}
.label-note { font-weight: 400; color: var(--text-muted); }
.label-req  { font-weight: 400; color: var(--accent); }

.form-row input[type="text"],
.form-row input[type="email"],
.form-row textarea {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 1rem;
  line-height: 1.5;
  transition: border-color 0.15s;
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(181, 83, 26, 0.1);
}
.check-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.15rem;
}
.check-label {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 1rem;
  line-height: 1.5;
  cursor: pointer;
}
.check-label input[type="checkbox"] {
  margin-top: 0.3em;
  accent-color: var(--accent);
  flex-shrink: 0;
}
.consent-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-family: 'Inter', system-ui, sans-serif;
}
.submit-btn {
  display: inline-block;
  padding: 0.6rem 2rem;
  background: var(--accent);
  color: #fff;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.15s;
  letter-spacing: 0.01em;
}
.submit-btn:hover { background: var(--accent-hover); }
.form-notice {
  padding: 0.9rem 1.1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.9rem;
}
.form-notice p { margin: 0; }
.form-success {
  background: #f0f7f3;
  color: #2d6a4f;
  border: 1px solid #b7dfc9;
}
.form-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

/* ── Contributor map ── */
.contrib-map {
  height: 380px;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  margin: 1rem 0 0.5rem;
}
.map-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: 'Inter', system-ui, sans-serif;
  margin-bottom: 2rem;
}

/* ── Contribute ways ── */
.contrib-ways {
  margin: 1rem 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.contrib-ways dt {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  margin: 0;
}
.contrib-ways dd {
  margin: 0.2rem 0 0;
  color: var(--text-muted);
  font-size: 0.975rem;
  line-height: 1.65;
}

/* ── Google Form embed ── */
.gform-embed {
  margin: 1.5rem 0 2rem;
  width: 100%;
  overflow: hidden;
}
.gform-embed iframe {
  width: 100%;
  max-width: 640px;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: block;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  html { font-size: 17px; }
  :root { --stripe-w: 10px; }

  .h-pad {
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
  }

  .site-header { flex-direction: column; gap: 1rem; padding-block: 1.25rem; }
  nav { gap: 1rem; }

  h1 { font-size: 1.75rem; }
  .content { padding-block: 2.5rem 4rem; }

  .hero { padding-block: 2.75rem 2rem; }
  .hero-hl { font-size: 2.3rem; }
  .hero-body { flex-direction: column; gap: 1.5rem; }
  .hero-aside { flex: none; }

  .cards { grid-template-columns: 1fr; }
  .stat { min-width: 100px; }
  .stat-n { font-size: 1.65rem; }

  footer { flex-direction: column; align-items: flex-start; }
}