:root {
  --bg-main: #0B192C;
  --bg-surface: #10233D;
  --bg-card: #152C4D;
  --bg-highlight: #1B3860;
  --text-main: #F1F5F9;
  --text-muted: #94A3B8;
  --text-soft: #64748B;
  --accent-gold: #C88E43;
  --accent-cyan: #38BDF8;
  --border-color: #234570;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --font-display: "Cinzel", Georgia, serif;
  --font-ui: "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

[data-theme="light"] {
  --bg-main: #F8FAFC;
  --bg-surface: #F1F5F9;
  --bg-card: #FFFFFF;
  --bg-highlight: #E2E8F0;
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-soft: #94A3B8;
  --accent-gold: #B47828;
  --accent-cyan: #0284C7;
  --border-color: #CBD5E1;
  --border-subtle: rgba(0, 0, 0, 0.08);
}

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

body {
  margin: 0;
  background: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-ui);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-cyan); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 25, 44, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

[data-theme="light"] .site-nav { background: rgba(248, 250, 252, 0.94); }

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
}

.brand-logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--accent-gold);
  display: grid;
  place-items: center;
  color: var(--accent-gold);
  background: linear-gradient(135deg, #1E3E62, #0B192C);
}

.brand-texts h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.1;
}

.brand-texts span {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; justify-content: flex-end; }

.btn-action {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.4rem 0.85rem;
  border-radius: 30px;
  font: inherit;
  font-size: 0.85rem;
  text-decoration: none;
  cursor: pointer;
}

.btn-action:hover { border-color: var(--accent-gold); color: var(--accent-gold); }

.desk {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.25rem;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.binder {
  position: sticky;
  top: 86px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 0.9rem;
}

.binder p {
  margin: 0 0 0.7rem;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-gold);
}

#doc-search {
  width: 100%;
  margin-bottom: 0.75rem;
  padding: 0.55rem 0.7rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-main);
  color: var(--text-main);
  font: inherit;
}

#doc-list { display: flex; flex-direction: column; gap: 0.25rem; }

#doc-list a {
  display: block;
  padding: 0.55rem 0.7rem 0.55rem 0.8rem;
  border-left: 3px solid transparent;
  border-radius: 8px;
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.92rem;
}

#doc-list a:hover { background: var(--bg-highlight); }

#doc-list a[aria-current="page"] {
  border-left-color: var(--accent-gold);
  background: var(--bg-card);
  color: var(--accent-gold);
}

#doc-list a[hidden] { display: none; }

.sheet {
  min-width: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem 1.4rem 2.5rem;
}

.sheet-path {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-soft);
}

.doc-status { color: var(--text-muted); }

#doc-body h1, #doc-body h2, #doc-body h3 {
  font-family: var(--font-display);
  line-height: 1.25;
  margin: 1.4rem 0 0.6rem;
}

#doc-body h1 { margin-top: 0; font-size: 1.55rem; }
#doc-body h2 { font-size: 1.2rem; color: var(--accent-gold); }
#doc-body h3 { font-size: 1.05rem; font-family: var(--font-ui); }

#doc-body p { margin: 0.7rem 0; }
#doc-body ul, #doc-body ol { margin: 0.6rem 0 0.6rem 1.2rem; padding: 0; }
#doc-body li { margin: 0.25rem 0; }
#doc-body hr { border: 0; border-top: 1px solid var(--border-color); margin: 1.2rem 0; }
#doc-body blockquote {
  margin: 1rem 0;
  padding: 0.2rem 0 0.2rem 0.9rem;
  border-left: 3px solid var(--accent-gold);
  color: var(--text-muted);
}
#doc-body code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: var(--bg-main);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
#doc-body pre {
  overflow: auto;
  padding: 0.9rem 1rem;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}
#doc-body pre code { background: none; padding: 0; }
#doc-body .diagram { border-color: var(--accent-gold); }
.diagram-label {
  margin: 1rem 0 0.35rem;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-gold);
}
.table-wrap { overflow-x: auto; margin: 1rem 0; }
#doc-body table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
#doc-body th, #doc-body td {
  text-align: left;
  vertical-align: top;
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid var(--border-color);
}
#doc-body th { color: var(--accent-gold); font-weight: 600; }

@media (max-width: 800px) {
  .desk { grid-template-columns: 1fr; }
  .binder { position: static; }
  .nav-inner { height: auto; padding-top: 0.7rem; padding-bottom: 0.7rem; }
}