/* T(h)reehouse +EC — Stylesheet */
/* Warm architectural studio. Drafting paper. Careful work. */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display&family=Inter:ital,opsz,wght@0,14..32,300;0,14..32,400;0,14..32,500;0,14..32,600;1,14..32,400&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg: #f6f1ea;
  --bg-warm: #f0e9df;
  --bg-card: #faf7f2;
  --bg-inset: #ece5d9;
  --text: #33302b;
  --text-mid: #5c564e;
  --text-quiet: #8a8278;
  --text-faint: #b0a99e;
  --rule: #d6cfc4;
  --rule-light: #e4ddd3;
  --accent: #b0603a;
  --accent-soft: #c8875e;
  --accent-bg: rgba(176, 96, 58, 0.06);
  --accent-dark: #8a4a2c;
  --green: #5a7a5e;
  --green-bg: rgba(90, 122, 94, 0.06);
  --blue-quiet: #6a7a8e;
  --gold: #c4973a;
  --gold-dark: #8a6b28;
  --gold-bg: rgba(196, 151, 58, 0.1);
  --crimson: #8a3040;
  --crimson-soft: #a04858;
  --crimson-dark: #6b2030;
  --crimson-bg: rgba(138, 48, 64, 0.06);
  --display: 'DM Serif Display', Georgia, serif;
  --body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Consolas', monospace;
  --max-w: 740px;
  --max-w-wide: 900px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16.5px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Texture overlay ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.025'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* ═══════════════════════════════════ */
/* Navigation                          */
/* ═══════════════════════════════════ */

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-warm);
  border-bottom: 1px solid var(--rule);
}

.nav-inner {
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0.75rem 2rem;
  display: flex;
  align-items: baseline;
  gap: 2rem;
  flex-wrap: wrap;
}

.nav-mark {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-decoration: none;
}

.nav-mark:hover { color: var(--accent-dark); }

.nav-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav-links a {
  font-family: var(--body);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-quiet);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

/* ═══════════════════════════════════ */
/* Main content                        */
/* ═══════════════════════════════════ */

main {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

main.wide {
  max-width: var(--max-w-wide);
}

/* ═══════════════════════════════════ */
/* Typography                          */
/* ═══════════════════════════════════ */

h1 {
  font-family: var(--display);
  font-size: 2.2rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 0.4rem;
}

h1 .subtitle {
  display: block;
  font-family: var(--body);
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text-quiet);
  margin-top: 0.5rem;
  letter-spacing: 0.01em;
}

h2 {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}

h3 {
  font-family: var(--display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text);
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

h4 {
  font-family: var(--body);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 1.5rem;
  margin-bottom: 0.4rem;
}

p {
  margin-bottom: 0.9rem;
  font-size: 0.93rem;
  font-weight: 300;
}

strong {
  font-weight: 600;
  color: var(--text);
}

em {
  font-style: italic;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent-soft);
  text-underline-offset: 0.15em;
  transition: color 0.2s, text-decoration-color 0.2s;
}

a:hover {
  color: var(--accent-dark);
  text-decoration-color: var(--accent-dark);
}

hr {
  border: none;
  height: 1px;
  background: var(--rule);
  margin: 2.5rem 0;
}

blockquote {
  border-left: 2px solid var(--accent-soft);
  padding: 0.7rem 1.2rem;
  margin: 1.2rem 0;
  background: var(--accent-bg);
  font-size: 0.9rem;
  color: var(--text-mid);
  font-style: italic;
}

ul, ol {
  margin: 0.6rem 0 0.9rem 1.4rem;
  font-size: 0.93rem;
}

li {
  margin-bottom: 0.3rem;
  font-weight: 300;
}

/* ═══════════════════════════════════ */
/* Hero / title block                  */
/* ═══════════════════════════════════ */

.hero {
  text-align: center;
  padding: 2rem 0 2.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--rule);
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 1px;
  background: var(--accent);
}

.hero-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.8rem;
}

.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 0.6rem;
}

.hero .tagline {
  font-family: var(--body);
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--text-mid);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ═══════════════════════════════════ */
/* Lenses grid                         */
/* ═══════════════════════════════════ */

.lenses {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 1.5rem 0 2rem;
}

.lens {
  background: var(--bg-card);
  padding: 1.2rem 1.4rem;
}

.lens-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.lens p {
  font-size: 0.85rem;
  color: var(--text-mid);
  margin: 0;
  line-height: 1.55;
}

/* ═══════════════════════════════════ */
/* Cards — cases, stories              */
/* ═══════════════════════════════════ */

.card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  padding: 1.5rem 1.8rem;
  margin-bottom: 1.2rem;
  position: relative;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.card:hover {
  border-color: var(--accent-soft);
  box-shadow: 0 2px 12px rgba(176, 96, 58, 0.06);
}

.card-type {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.4rem;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.3rem;
}

.card .card-sub {
  font-size: 0.85rem;
  color: var(--text-quiet);
  font-style: italic;
  margin-bottom: 0.6rem;
}

.card p {
  font-size: 0.88rem;
  color: var(--text-mid);
}

.card .card-lessons {
  font-size: 0.82rem;
  color: var(--text-quiet);
  margin-top: 0.6rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--rule-light);
}

.card-link {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-decoration: none;
  margin-top: 0.8rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--rule);
  transition: color 0.2s, border-color 0.2s;
}

.card-link:hover {
  color: var(--accent-dark);
  border-color: var(--accent);
}

.card-link::after {
  content: ' →';
}

.card-disclaimer {
  font-size: 0.75rem;
  color: var(--text-faint);
  font-style: italic;
  margin-top: 0.6rem;
}

/* Cross-reference (rendered by render.js) */
.card-cross-ref {
  font-size: 0.82rem;
  color: var(--text-quiet);
  margin-top: 0.6rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--rule-light);
}

.card-cross-ref a {
  color: var(--accent);
}

/* Case-specific accent */
.card.case-card {
  border-left: 3px solid var(--accent-soft);
}

/* Story-specific accent */
.card.story-card {
  border-left: 3px solid var(--green);
}

.card.story-card .card-type {
  color: var(--green);
}

/* Kids' Corner accent */
.card.kids-card {
  border-left: 3px solid var(--gold);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(212, 168, 83, 0.04) 100%);
}

.card.kids-card .card-type {
  color: var(--gold);
}

.card .age-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-dark);
  background: var(--gold-bg);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
  margin-left: 0.5rem;
  vertical-align: middle;
}

.card .lang-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-quiet);
  background: var(--bg-inset);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
  margin-right: 0.4rem;
}

/* ═══════════════════════════════════ */
/* Vault (21+) accent                  */
/* ═══════════════════════════════════ */

.card.vault-card {
  border-left: 3px solid var(--crimson);
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--crimson-bg) 100%);
}

.card.vault-card .card-type {
  color: var(--crimson);
}

.card.vault-card:hover {
  border-color: var(--crimson-soft);
  box-shadow: 0 2px 12px rgba(138, 48, 64, 0.08);
}

.card .maturity-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--crimson-dark);
  background: var(--crimson-bg);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
  margin-left: 0.5rem;
  vertical-align: middle;
  border: 1px solid rgba(138, 48, 64, 0.15);
}

/* ── Riddle gate ── */

.riddle-gate {
  border: 1px solid var(--rule);
  background: var(--bg-card);
  padding: 2rem 2.5rem;
  margin: 1.8rem 0;
  text-align: center;
}

.riddle-gate .riddle-icon {
  font-size: 1.6rem;
  margin-bottom: 0.8rem;
  opacity: 0.6;
}

.riddle-gate .riddle-prompt {
  font-family: var(--display);
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 0.3rem;
  line-height: 1.5;
}

.riddle-gate .riddle-hint {
  font-size: 0.82rem;
  color: var(--text-quiet);
  font-style: italic;
  margin-bottom: 1.4rem;
}

.riddle-input-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.riddle-gate input[type="text"] {
  font-family: var(--mono);
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--rule);
  background: var(--bg);
  color: var(--text);
  width: 160px;
  text-align: center;
  letter-spacing: 0.08em;
  outline: none;
  transition: border-color 0.3s;
}

.riddle-gate input[type="text"]:focus {
  border-color: var(--crimson-soft);
}

.riddle-gate button {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.55rem 1.4rem;
  border: 1px solid var(--crimson);
  background: transparent;
  color: var(--crimson);
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
}

.riddle-gate button:hover {
  background: var(--crimson);
  color: #fff;
}

.riddle-feedback {
  font-size: 0.8rem;
  margin-top: 0.8rem;
  min-height: 1.4em;
}

.riddle-feedback.error {
  color: var(--crimson);
}

.riddle-feedback.success {
  color: var(--green);
}

.vault-content {
  display: none;
}

.vault-content.revealed {
  display: block;
  animation: fadeUp 0.6s ease-out;
}

.vault-sealed-note {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-faint);
  text-align: center;
  margin-top: 1rem;
  letter-spacing: 0.03em;
}

/* ═══════════════════════════════════ */
/* Fields list (landing page)          */
/* ═══════════════════════════════════ */

.fields-list {
  margin: 0.8rem 0 1.2rem;
  padding: 0;
  list-style: none;
}

.fields-list li {
  font-size: 0.9rem;
  color: var(--text-mid);
  padding: 0.35rem 0 0.35rem 1.2rem;
  position: relative;
  font-weight: 300;
}

.fields-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--rule);
}

/* ═══════════════════════════════════ */
/* Info panels (why, submit, access)   */
/* ═══════════════════════════════════ */

.info-panel {
  background: var(--bg-inset);
  border: 1px solid var(--rule-light);
  padding: 1.3rem 1.5rem;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.info-panel h4 {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 0;
  margin-bottom: 0.6rem;
}

.info-panel p {
  font-size: 0.88rem;
  color: var(--text-mid);
}

/* ═══════════════════════════════════ */
/* Standards grid                      */
/* ═══════════════════════════════════ */

.standards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1rem 0;
}

.standard-item {
  padding: 1rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--rule-light);
}

.standard-item h4 {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-quiet);
  margin: 0 0 0.4rem 0;
}

.standard-item p {
  font-size: 0.85rem;
  color: var(--text-mid);
  margin: 0;
}

/* ═══════════════════════════════════ */
/* Contact block                       */
/* ═══════════════════════════════════ */

.contact-block {
  text-align: center;
  margin: 2.5rem 0;
  padding: 1.5rem;
  border: 1px solid var(--rule);
  background: var(--bg-card);
}

.contact-block .email {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.1rem;
  transition: color 0.2s, border-color 0.2s;
}

.contact-block .email:hover {
  color: var(--accent-dark);
  border-color: var(--accent);
}

.contact-block p {
  font-size: 0.82rem;
  color: var(--text-quiet);
  margin-top: 0.6rem;
}

/* ═══════════════════════════════════ */
/* Harbour reference                   */
/* ═══════════════════════════════════ */

.harbour-ref {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-faint);
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule-light);
  letter-spacing: 0.01em;
}

.harbour-ref a {
  color: var(--text-quiet);
  text-decoration-color: var(--rule);
}

/* ═══════════════════════════════════ */
/* Footer                              */
/* ═══════════════════════════════════ */

footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--rule);
  margin-top: 2rem;
}

footer .footer-mark {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-quiet);
  letter-spacing: 0.04em;
}

footer .footer-motto {
  font-family: var(--body);
  font-size: 0.78rem;
  font-weight: 300;
  font-style: italic;
  color: var(--text-faint);
  margin-top: 0.3rem;
}

/* ═══════════════════════════════════ */
/* Page header (archive/stories pages) */
/* ═══════════════════════════════════ */

.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule);
}

.page-header h1 {
  font-size: 1.8rem;
}

.page-header p {
  color: var(--text-mid);
  max-width: 560px;
}

/* ═══════════════════════════════════ */
/* Counter / stats                     */
/* ═══════════════════════════════════ */

.archive-count {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  margin-bottom: 1.5rem;
}

/* ═══════════════════════════════════ */
/* Responsive                          */
/* ═══════════════════════════════════ */

@media (max-width: 640px) {
  html { font-size: 15.5px; }
  main { padding: 2rem 1.2rem 3.5rem; }
  .nav-inner { padding: 0.7rem 1.2rem; gap: 0.8rem; }
  .hero h1 { font-size: 2rem; }
  h1 { font-size: 1.8rem; }
  .lenses { grid-template-columns: 1fr; }
  .standards-grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════ */
/* Subtle entrance                     */
/* ═══════════════════════════════════ */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero { animation: fadeUp 0.7s ease-out; }
.card { animation: fadeUp 0.5s ease-out both; }
.card:nth-child(2) { animation-delay: 0.06s; }
.card:nth-child(3) { animation-delay: 0.12s; }
.card:nth-child(4) { animation-delay: 0.18s; }