/* ==========================================================================
   Calibrator Changelog -- the calibrator's change-history timeline.
   Shares the tenets register: serif body (Cardo), small-caps display
   (Cormorant SC), dark editorial ground.
   ========================================================================== */

:root {
  --tn-bg: #0a0a12;
  --tn-bg-soft: #0e0e18;
  --tn-ink: #d8d4c8;
  --tn-ink-bright: #f0ebdd;
  --tn-ink-dim: #8a8476;
  --tn-rule: #2a2738;
  --tn-gold: #c9a960;
  --evo-law: #c9a960;
  --evo-lens: #3388ff;
}

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

html, body { margin: 0; padding: 0; background: var(--tn-bg); color: var(--tn-ink); }

body {
  font-family: 'Cardo', Georgia, 'Times New Roman', serif;
  font-size: 18px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === Header === */

.evo-header {
  display: flex;
  align-items: center;
  padding: 20px 32px;
  border-bottom: 1px solid var(--tn-rule);
  background: var(--tn-bg);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--tn-ink);
  text-decoration: none;
  font-family: 'Cormorant SC', serif;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  transition: color 0.2s;
}
.back-link:hover { color: var(--tn-ink-bright); }
.back-link svg { display: block; }

/* === Layout + intro === */

.evo-main { max-width: 820px; margin: 0 auto; padding: 80px 32px 120px; }

.evo-intro { text-align: center; margin: 0 0 72px; }

.evo-title {
  font-family: 'Cormorant SC', serif;
  font-weight: 500;
  font-size: clamp(2.1rem, 4.6vw, 3.3rem);
  letter-spacing: 0.1em;
  color: var(--tn-ink-bright);
  margin: 0 0 12px;
  line-height: 1.12;
}

.evo-kicker {
  font-family: 'Cardo', serif;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--tn-ink-dim);
  margin: 0 0 28px;
}

.evo-preamble {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--tn-ink);
  max-width: 600px;
  margin: 0 auto;
  text-align: left;
}

/* === Timeline === */

.evo-timeline {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--tn-rule);
  margin-left: 8px;
}

.evo-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  padding: 32px 0 32px 28px;
  position: relative;
  border-top: 1px solid var(--tn-rule);
}
.evo-item:first-child { border-top: none; }

.evo-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 40px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--tn-ink-dim);
  box-shadow: 0 0 0 3px var(--tn-bg);
}
.evo-item.evo-law::before { background: var(--evo-law); }
.evo-item.evo-lens::before { background: var(--evo-lens); }

.evo-rail { display: flex; flex-direction: column; gap: 8px; }

.evo-date {
  font-family: 'Cormorant SC', serif;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--tn-ink-bright);
}

.evo-kind {
  font-family: 'Cormorant SC', serif;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--tn-ink-dim);
}
.evo-item.evo-law .evo-kind { color: var(--evo-law); }
.evo-item.evo-lens .evo-kind { color: var(--evo-lens); }

.evo-headline {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 1.28rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--tn-ink-bright);
  margin: 0 0 12px;
}

.evo-text {
  font-family: 'Cardo', serif;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--tn-ink);
  margin: 0 0 12px;
}

.evo-source {
  font-family: 'Cardo', serif;
  font-style: italic;
  font-size: 0.9rem;
  color: var(--tn-ink-dim);
  margin: 0;
}

/* === Footer === */

.evo-footer {
  margin: 80px auto 0;
  padding-top: 40px;
  border-top: 1px solid var(--tn-rule);
  text-align: center;
}

.footer-note {
  font-family: 'Cormorant SC', serif;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--tn-ink-dim);
  margin: 0 0 12px;
}

.evo-see-also {
  font-family: 'Cardo', serif;
  font-style: italic;
  font-size: 0.95rem;
  color: var(--tn-ink-dim);
  margin: 0;
}
.evo-see-also a {
  color: var(--tn-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--tn-rule);
  transition: color 0.2s, border-color 0.2s;
}
.evo-see-also a:hover { color: var(--tn-ink-bright); border-bottom-color: var(--tn-gold); }

.evo-error {
  font-family: 'Cardo', serif;
  font-style: italic;
  color: var(--tn-ink-dim);
  text-align: center;
}

/* === Mobile === */

@media (max-width: 640px) {
  .evo-main { padding: 48px 20px 80px; }
  .evo-item { grid-template-columns: 1fr; gap: 12px; padding-left: 22px; }
  .evo-rail { flex-direction: row; align-items: baseline; gap: 14px; }
}