/* ══════════════════════════════════════════════════════════════════════════
   LimenGate.quest — Sovereign Browser Site
   No JS frameworks. No trackers. No cookies. No analytics.
   ══════════════════════════════════════════════════════════════════════════ */

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

/* ── Limen Dark (default) — Threshold Violet + Electric Cyan ─────────── */
:root,
:root[data-theme="limen-dark"] {
  --bg-primary:   #110d22;
  --bg-secondary: #1a1338;
  --bg-tertiary:  #221848;
  --bg-hover:     #2a1f56;
  --bg-active:    #3d2b78;

  --text-bright:    #f0e8ff;
  --text-primary:   #c8b8f0;
  --text-secondary: #8870b8;
  --text-muted:     #55407a;

  --accent:        #00D4FF;
  --accent-hover:  #33deff;
  --accent-subtle: #002233;

  --border:        #3d2b78;
  --border-subtle: #1a1338;

  --success:  #3ddc84;
  --warning:  #f9c74f;
  --error:    #f94144;
}

/* ── Codex (VS Dark) ─────────────────────────────────────────────────── */
:root[data-theme="codex"] {
  --bg-primary:   #1e1e1e;
  --bg-secondary: #252526;
  --bg-tertiary:  #2d2d30;
  --bg-hover:     #2a2d2e;
  --bg-active:    #37373d;

  --text-bright:    #e8e8e8;
  --text-primary:   #cccccc;
  --text-secondary: #9d9d9d;
  --text-muted:     #6e6e6e;

  --accent:        #0e7edd;
  --accent-hover:  #1184e8;
  --accent-subtle: #1e3a5f;

  --border:        #3e3e42;
  --border-subtle: #2d2d30;

  --success:  #89d185;
  --warning:  #cca700;
  --error:    #f44747;
}

/* ── Light ────────────────────────────────────────────────────────────── */
:root[data-theme="light"] {
  --bg-primary:   #f8f6ff;
  --bg-secondary: #efecf7;
  --bg-tertiary:  #e4e0f0;
  --bg-hover:     #ddd8ed;
  --bg-active:    #d0c8e6;

  --text-bright:    #1a1530;
  --text-primary:   #2d2640;
  --text-secondary: #5a5070;
  --text-muted:     #8880a0;

  --accent:        #6b3fa0;
  --accent-hover:  #7d4fb5;
  --accent-subtle: #e8ddf5;

  --border:        #d0c8e6;
  --border-subtle: #e4e0f0;

  --success:  #388a34;
  --warning:  #bf8803;
  --error:    #cd3131;
}

/* ── High Contrast ────────────────────────────────────────────────────── */
:root[data-theme="contrast"] {
  --bg-primary:   #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary:  #111111;
  --bg-hover:     #1a1a1a;
  --bg-active:    #252525;

  --text-bright:    #ffffff;
  --text-primary:   #ffffff;
  --text-secondary: #cccccc;
  --text-muted:     #888888;

  --accent:        #1aabff;
  --accent-hover:  #40b8ff;
  --accent-subtle: #003366;

  --border:        #6fc3df;
  --border-subtle: #333333;

  --success:  #89d185;
  --warning:  #ffcc00;
  --error:    #ff6060;
}

/* ── Typography ───────────────────────────────────────────────────────── */
:root {
  --font-mono: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', 'Consolas', 'Courier New', monospace;
  --font-ui:   -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
}

/* ── Base ─────────────────────────────────────────────────────────────── */
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ── Scrollbars ───────────────────────────────────────────────────────── */
::-webkit-scrollbar            { width: 8px; height: 8px; }
::-webkit-scrollbar-track      { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb      { background: var(--text-muted); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ── Links ────────────────────────────────────────────────────────────── */
a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--accent-hover); text-decoration: underline; }

/* ── Layout ───────────────────────────────────────────────────────────── */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-wide {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Nav ──────────────────────────────────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0 24px;
}
.site-nav .nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.site-nav .logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 0.5px;
}
.site-nav .logo span {
  color: var(--accent);
}
.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  align-items: center;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  text-decoration: none;
}
.theme-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.2s;
}
.theme-btn:hover {
  background: var(--bg-hover);
  color: var(--text-bright);
  border-color: var(--accent);
}

/* ── Hero ─────────────────────────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 100px 24px 80px;
}
.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--text-bright);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.hero h1 .accent { color: var(--accent); }
.hero .tagline {
  font-size: 1.3rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
}
.hero .cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: #000;
  text-decoration: none;
}
.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-bright);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  text-decoration: none;
}

/* ── Section ──────────────────────────────────────────────────────────── */
section {
  padding: 80px 0;
}
section + section {
  border-top: 1px solid var(--border-subtle);
}
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 48px;
  max-width: 640px;
}
.section-center {
  text-align: center;
}
.section-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* ── Cards / Grid ─────────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.card .card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}
.card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 8px;
}
.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ── Principles Bar ───────────────────────────────────────────────────── */
.principles {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  padding: 32px 0;
}
.principle {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
}
.principle .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ── Code Block ───────────────────────────────────────────────────────── */
.code-block {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-primary);
  overflow-x: auto;
  line-height: 1.6;
}
.code-block .comment { color: var(--text-muted); }
.code-block .cmd { color: var(--accent); }
.code-block .string { color: var(--success); }

/* ── Provenance Table ─────────────────────────────────────────────────── */
.provenance-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 14px;
}
.provenance-table th,
.provenance-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.provenance-table th {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  width: 180px;
}
.provenance-table td {
  color: var(--text-bright);
  word-break: break-all;
}
.provenance-table tr:hover td {
  background: var(--bg-hover);
}

/* ── Status Badge ─────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
}
.badge-ok {
  background: rgba(61, 220, 132, 0.15);
  color: var(--success);
}
.badge-warn {
  background: rgba(249, 199, 79, 0.15);
  color: var(--warning);
}

/* ── Download Card ────────────────────────────────────────────────────── */
.download-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  max-width: 560px;
  margin: 0 auto 32px;
}
.download-card h3 {
  font-size: 1.4rem;
  color: var(--text-bright);
  margin-bottom: 8px;
}
.download-card .arch {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 13px;
  margin-bottom: 20px;
}
.download-card .hash {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  word-break: break-all;
  margin-top: 16px;
  text-align: left;
}
.download-card .hash-label {
  color: var(--text-muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

/* ── Scroll / Doc Card ────────────────────────────────────────────────── */
.scroll-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 16px;
  transition: border-color 0.2s;
}
.scroll-card:hover { border-color: var(--accent); }
.scroll-card h3 {
  color: var(--text-bright);
  font-size: 1.1rem;
  margin-bottom: 6px;
}
.scroll-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.scroll-card .scroll-type {
  display: inline-block;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--accent);
  background: var(--accent-subtle);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

/* ── Footer ───────────────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 32px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}
.site-footer a { color: var(--text-secondary); }
.footer-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-bottom: 12px;
  list-style: none;
}

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.2rem; }
  .hero .tagline { font-size: 1.05rem; }
  .hero { padding: 60px 16px 48px; }
  section { padding: 48px 0; }
  .principles { gap: 20px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 13px; }
  .site-nav .logo { font-size: 16px; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .nav-links { display: none; }
  .card-grid { grid-template-columns: 1fr; }
}