/*
 * bra0 docs — layout styles
 * Imports site-theme.css for tokens. Adds sidebar + content layout.
 */

/* ---- Layout ---- */
.docs-wrap {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 0 40px;
  min-height: calc(100vh - 44px);
}
@media (max-width: 800px) {
  .docs-wrap { grid-template-columns: 1fr; }
}

/* ---- Sidebar ---- */
.docs-sidebar {
  position: sticky;
  top: 56px;
  align-self: start;
  padding: 24px 0;
  max-height: calc(100vh - 56px);
  overflow-y: auto;
  border-right: 1px solid var(--border);
}
.docs-sidebar::-webkit-scrollbar { width: 3px; }
.docs-sidebar::-webkit-scrollbar-thumb { background: var(--surface3); border-radius: 2px; }

.docs-nav-section {
  margin-bottom: 20px;
}
.docs-nav-label {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  padding: 0 12px 8px;
}
.docs-nav-link {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
  padding: 5px 12px;
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: all 0.15s;
  margin-bottom: 1px;
}
.docs-nav-link:hover {
  color: var(--text);
  background: var(--surface);
}
.docs-nav-link.active {
  color: var(--orange);
  border-left-color: var(--orange);
  background: var(--orange-dim);
}

@media (max-width: 800px) {
  .docs-sidebar {
    position: sticky;
    top: 44px;
    z-index: 10;
    padding: 8px 12px;
    background: var(--bg);
    border-right: none;
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 0;
    overflow-x: auto;
    white-space: nowrap;
    max-height: none;
  }
  .docs-nav-label { display: none; }
  .docs-nav-section { margin-bottom: 0; display: flex; gap: 2px; }
  .docs-nav-link { flex-shrink: 0; padding: 5px 10px; border-left: none; font-size: 11px; }
}

/* ---- Content ---- */
.docs-content {
  padding: 40px 24px 120px;
  min-width: 0;
  max-width: 780px;
}

.docs-content h1 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 8px;
}
.docs-content h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.docs-content h3 {
  font-size: 16px;
  font-weight: 700;
  margin-top: 32px;
  margin-bottom: 12px;
}
.docs-subtitle {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 32px;
}
.docs-content p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.75;
  margin-bottom: 16px;
}
.docs-content strong { color: var(--text); font-weight: 600; }
.docs-content a { color: var(--orange); }
.docs-content a:hover { color: var(--text); }

/* ---- Breadcrumbs ---- */
.docs-breadcrumb {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.docs-breadcrumb a {
  color: var(--text-dim);
  text-decoration: none;
}
.docs-breadcrumb a:hover { color: var(--text); }
.docs-breadcrumb .sep { margin: 0 6px; }

/* ---- Card grid (landing page) ---- */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.docs-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.2s, transform 0.2s;
  position: relative;
  overflow: hidden;
}
.docs-card:hover { border-color: var(--border-bright); transform: translateY(-2px); }
.docs-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
}
.docs-card--orange::before { background: var(--orange); }
.docs-card--blue::before { background: var(--bra0-blue); }
.docs-card--green::before { background: var(--green); }
.docs-card--yellow::before { background: var(--yellow); }
.docs-card--pink::before { background: var(--pink); }

.docs-card-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
}
.docs-card-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
.docs-card-desc {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.6;
}
.docs-card-cta {
  font-size: 11px;
  font-weight: 600;
  color: var(--orange);
  margin-top: auto;
}

/* ---- Quadrant labels ---- */
.docs-quadrant {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.docs-quadrant--tutorial { background: var(--orange-dim); color: var(--orange); }
.docs-quadrant--guide { background: var(--green-dim); color: var(--green); }
.docs-quadrant--concept { background: rgba(0,70,178,0.12); color: var(--bra0-blue-light); }
.docs-quadrant--reference { background: var(--yellow-dim); color: var(--yellow); }
.docs-quadrant--architecture { background: var(--pink-dim); color: var(--pink); }

/* ---- Footer nav ---- */
.docs-footer-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  gap: 16px;
}
.docs-footer-link {
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
}
.docs-footer-link:hover { color: var(--text); }
.docs-footer-link small {
  display: block;
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}