/* ============================================================
   FlexGanttFX — docs.css
   Documentation layout: sidebar + prose
   ============================================================ */

/* ── Docs Layout ───────────────────────────────────────────── */
.docs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: calc(100vh - 64px);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  gap: 0;
}

/* ── Sidebar ───────────────────────────────────────────────── */
.docs-sidebar {
  position: sticky;
  top: 64px;
  height: calc(100vh - 64px);
  overflow-y: auto;
  padding: 32px 0 32px 0;
  border-right: 1px solid var(--gray-200);
  scrollbar-width: thin;
  scrollbar-color: var(--gray-200) transparent;
}
.docs-sidebar::-webkit-scrollbar { width: 4px; }
.docs-sidebar::-webkit-scrollbar-track { background: transparent; }
.docs-sidebar::-webkit-scrollbar-thumb { background: var(--gray-200); border-radius: 2px; }

.sidebar-group { margin-bottom: 28px; }
.sidebar-group-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: 0 16px 8px;
}
.sidebar-nav { list-style: none; }
.sidebar-nav li a {
  display: block;
  padding: 7px 16px;
  font-size: 0.875rem;
  color: var(--gray-600);
  border-radius: 6px;
  margin: 1px 4px;
  transition: all var(--transition);
  border-left: 2px solid transparent;
}
.sidebar-nav li a:hover { color: var(--navy); background: var(--gray-100); }
.sidebar-nav li a.active { color: var(--blue); background: rgba(59,130,246,0.08); border-left-color: var(--blue); font-weight: 600; }

/* ToC inside sidebar */
.sidebar-toc { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--gray-200); }
.sidebar-toc-title { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); padding: 0 16px 8px; }
.toc-nav { list-style: none; }
.toc-nav li a { display: block; padding: 5px 16px; font-size: 0.8rem; color: var(--text-muted); border-radius: 4px; transition: color var(--transition); }
.toc-nav li a:hover { color: var(--navy); }
.toc-nav li.toc-h3 a { padding-left: 28px; }

/* ── Main Content ──────────────────────────────────────────── */
.docs-content {
  padding: 40px 0 80px 48px;
  min-width: 0;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.breadcrumb a { color: var(--blue); }
.breadcrumb-sep { color: var(--gray-400); }

/* Prose */
.prose h1 { font-size: 2rem; font-weight: 800; color: var(--navy); letter-spacing: -0.02em; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--gray-200); }
.prose h2 { font-size: 1.35rem; font-weight: 700; color: var(--navy); margin: 40px 0 12px; padding-top: 8px; }
.prose h2::before { content: ''; display: block; height: 0; margin-top: -8px; }
.prose h3 { font-size: 1.1rem; font-weight: 700; color: var(--navy); margin: 28px 0 8px; }
.prose p { font-size: 0.95rem; color: var(--gray-600); line-height: 1.8; margin-bottom: 16px; }
.prose strong { color: var(--navy); font-weight: 600; }
.prose em { font-style: italic; }
.prose a { color: var(--blue); font-weight: 500; }
.prose a:hover { color: var(--blue-dark); }
.prose ul, .prose ol { margin: 12px 0 20px 20px; }
.prose li { font-size: 0.95rem; color: var(--gray-600); line-height: 1.7; margin-bottom: 4px; }
.prose li strong { color: var(--navy); }

/* Tables */
.prose table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 0.875rem; overflow: hidden; border-radius: var(--radius-sm); border: 1px solid var(--gray-200); }
.prose th { background: var(--gray-100); padding: 10px 14px; text-align: left; font-weight: 700; font-size: 0.8rem; color: var(--navy); text-transform: uppercase; letter-spacing: 0.04em; }
.prose td { padding: 10px 14px; border-top: 1px solid var(--gray-200); color: var(--gray-600); }
.prose tr:hover td { background: var(--gray-50); }
.prose td strong { color: var(--navy); }
.prose td code { background: rgba(59,130,246,0.08); color: var(--blue-dark); padding: 2px 6px; border-radius: 4px; font-size: 0.82em; font-family: 'Fira Code', 'Consolas', monospace; }

/* Code blocks */
.prose code {
  background: rgba(59,130,246,0.08);
  color: var(--blue-dark);
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.85em;
  font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
}
.prose pre {
  background: var(--navy);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  overflow-x: auto;
  margin: 20px 0;
  border: 1px solid rgba(255,255,255,0.06);
}
.prose pre code {
  background: none;
  color: #e2e8f0;
  padding: 0;
  font-size: 0.875rem;
  line-height: 1.7;
}

/* Images */
.prose img { border-radius: var(--radius-sm); border: 1px solid var(--gray-200); margin: 20px 0; }

/* Callout boxes */
.callout {
  display: flex;
  gap: 12px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  margin: 20px 0;
  font-size: 0.9rem;
  line-height: 1.6;
}
.callout-info { background: rgba(59,130,246,0.08); border-left: 4px solid var(--blue); color: var(--navy-mid); }
.callout-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 1px; }

/* Prev/Next nav */
.docs-nav-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 40px;
  margin-top: 40px;
  border-top: 1px solid var(--gray-200);
}
.docs-nav-btn {
  display: flex;
  flex-direction: column;
  padding: 16px 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  min-width: 180px;
  transition: all var(--transition);
  color: inherit;
}
.docs-nav-btn:hover { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(59,130,246,0.1); }
.docs-nav-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 4px; }
.docs-nav-title { font-size: 0.9rem; font-weight: 600; color: var(--navy); }
.docs-nav-btn.next { align-items: flex-end; }

/* ── Prism.js syntax highlighting overrides ───────────────── */
/* Pin background to our navy and unify with .prose pre */
pre[class*="language-"],
code[class*="language-"] {
  font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
  font-size: 0.875rem;
  line-height: 1.7;
  text-shadow: none;
  -webkit-font-smoothing: antialiased;
}
pre[class*="language-"] {
  background: var(--navy) !important;
  border-radius: var(--radius-sm) !important;
  padding: 20px 24px !important;
  margin: 20px 0 !important;
  border: 1px solid rgba(255,255,255,0.06);
  overflow-x: auto;
  box-shadow: none;
}
/* Inline code with a language class (rare) */
:not(pre) > code[class*="language-"] {
  background: rgba(59,130,246,0.08);
  color: var(--blue-dark);
  padding: 2px 7px;
  border-radius: 4px;
  white-space: normal;
}
/* Prevent double background on the inner code element */
pre[class*="language-"] > code {
  background: none !important;
  padding: 0 !important;
  border-radius: 0 !important;
  color: inherit;
}
/* Line-highlight plugin compat */
.token.comment, .token.prolog, .token.doctype, .token.cdata { opacity: 0.75; }

/* ── Docs TOC page ─────────────────────────────────────────── */
/* ── Docs ToC page ─────────────────────────────────────────── */
.docs-toc-grid { display: flex; flex-direction: column; gap: 40px; }

.docs-toc-category {}
.docs-toc-category h2 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin: 0 0 14px;
  padding: 0;
  border: none;
  /* override .prose h2 */
  margin-top: 0;
}

.docs-toc-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.docs-toc-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  transition: all var(--transition);
  color: var(--navy);
  text-decoration: none;
}
.docs-toc-card:hover {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
  transform: translateY(-2px);
  color: var(--navy);
}
.docs-toc-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(59,130,246,0.1);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 1px;
}
.docs-toc-card strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 3px;
}
.docs-toc-card p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* ── Responsive docs ───────────────────────────────────────── */
@media (max-width: 768px) {
  .docs-layout { grid-template-columns: 1fr; padding: 0 16px; }
  .docs-sidebar {
    position: relative;
    top: auto;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--gray-200);
    padding: 20px 0;
  }
  .docs-content { padding: 24px 0 60px; }
  .docs-nav-bottom { flex-direction: column; }
  .docs-nav-btn.next { align-items: flex-start; }
}