/* Plan Forge Manual — Styles
   Extends shared.css. Dark theme, sidebar layout, book navigation.
   Tailwind CDN handles utilities; this file adds manual-specific components. */

/* ─── Layout ─── */
.manual-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}
@media (max-width: 1023px) {
  .manual-layout { grid-template-columns: 1fr; }
}

/* ─── Sidebar ─── */
.manual-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  border-right: 1px solid rgba(51, 65, 85, 0.5);
  background: #020617;
  scrollbar-width: thin;
  scrollbar-color: #334155 transparent;
}
.manual-sidebar::-webkit-scrollbar { width: 4px; }
.manual-sidebar::-webkit-scrollbar-thumb { background: #334155; border-radius: 2px; }

.sidebar-section { margin-bottom: 0.25rem; }
.sidebar-act {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #64748b;
  padding: 0.75rem 1.25rem 0.25rem;
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.25rem;
  font-size: 0.8rem;
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.15s, background 0.15s;
  border-left: 2px solid transparent;
}
.sidebar-link:hover {
  color: #e2e8f0;
  background: rgba(51, 65, 85, 0.3);
}
.sidebar-link.active {
  color: #f59e0b;
  border-left-color: #f59e0b;
  background: rgba(245, 158, 11, 0.06);
}
.sidebar-link .chapter-num {
  font-size: 0.65rem;
  font-weight: 600;
  color: #475569;
  min-width: 1.2rem;
}
.sidebar-link.active .chapter-num { color: #d97706; }

/* ─── Chapter content ─── */
.chapter-content {
  max-width: 52rem;
  margin: 0 auto;
  padding: 2rem 2rem 6rem;
}
@media (max-width: 640px) {
  .chapter-content { padding: 1.5rem 1rem 4rem; }
}

/* Chapter hero image */
.chapter-hero {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 0.75rem;
  margin-bottom: 2rem;
}
@media (min-width: 768px) { .chapter-hero { height: 280px; } }

/* ─── Typography ─── */
.chapter-content h1 {
  font-size: 2rem;
  font-weight: 800;
  color: #f1f5f9;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}
.chapter-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #e2e8f0;
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(51, 65, 85, 0.5);
}
.chapter-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}
.chapter-content p {
  line-height: 1.75;
  margin-bottom: 1rem;
  color: #94a3b8;
}
.chapter-content a {
  color: #f59e0b;
  text-decoration: underline;
  text-decoration-color: rgba(245, 158, 11, 0.3);
  text-underline-offset: 2px;
}
.chapter-content a:hover { text-decoration-color: #f59e0b; }

.chapter-content ul, .chapter-content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  color: #94a3b8;
}
.chapter-content li { margin-bottom: 0.35rem; line-height: 1.65; }
.chapter-content ul li { list-style: disc; }
.chapter-content ol li { list-style: decimal; }

/* Inline code */
.chapter-content code:not(pre code) {
  background: rgba(51, 65, 85, 0.5);
  color: #e2e8f0;
  padding: 0.15rem 0.4rem;
  border-radius: 0.25rem;
  font-size: 0.85em;
}

/* ─── Code blocks ─── */
.cmd-block {
  position: relative;
  background: #0f172a;
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: 0.75rem;
  margin-bottom: 1.5rem;
  overflow: hidden;
}
.cmd-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background: rgba(30, 41, 59, 0.6);
  border-bottom: 1px solid rgba(51, 65, 85, 0.4);
  font-size: 0.7rem;
  font-weight: 600;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.cmd-block pre {
  padding: 1rem;
  margin: 0;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.6;
  color: #e2e8f0;
}
.cmd-copy-btn {
  padding: 0.2rem 0.5rem;
  font-size: 0.65rem;
  color: #64748b;
  background: rgba(51, 65, 85, 0.4);
  border: 1px solid rgba(71, 85, 105, 0.4);
  border-radius: 0.3rem;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}
.cmd-copy-btn:hover { color: #e2e8f0; background: rgba(51, 65, 85, 0.7); }
.cmd-copy-btn.copied { color: #34d399; }

/* ─── Tables ─── */
.chapter-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
}
.chapter-content th {
  text-align: left;
  padding: 0.6rem 0.75rem;
  background: rgba(30, 41, 59, 0.6);
  border-bottom: 1px solid rgba(51, 65, 85, 0.6);
  font-weight: 600;
  color: #e2e8f0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.chapter-content td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
  color: #94a3b8;
}
.chapter-content tr:hover td { background: rgba(30, 41, 59, 0.3); }

/* ─── Callout boxes ─── */
.callout {
  padding: 1rem 1.25rem;
  border-radius: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.88rem;
  line-height: 1.6;
  border-left: 3px solid;
}
.callout-sm { font-size: 0.82rem; }
.callout-tip {
  background: rgba(52, 211, 153, 0.06);
  border-left-color: #34d399;
  color: #86efac;
}
.callout-warning {
  background: rgba(245, 158, 11, 0.06);
  border-left-color: #f59e0b;
  color: #fbbf24;
}
.callout-info {
  background: rgba(96, 165, 250, 0.06);
  border-left-color: #60a5fa;
  color: #93c5fd;
}

/* ─── Command reference cards ─── */
.cmd-ref {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(51, 65, 85, 0.4);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
}
.cmd-ref-title {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 1.05rem;
  font-weight: 700;
  color: #f59e0b;
  margin-bottom: 0.25rem;
}
.cmd-ref-desc {
  font-size: 0.88rem;
  color: #94a3b8;
  margin-bottom: 1rem;
}
.cmd-ref h3 { margin-top: 1rem; }

/* Diagram images */
.diagram-img { width: 100%; margin: 1rem 0 1.5rem; }
.diagram-img-sm { max-width: 700px; }
.diagram-img-md { max-width: 750px; }
.diagram-img-lg { max-width: 800px; }

/* Compact cmd-block (less bottom margin) */
.cmd-block-compact { margin-bottom: 0.5rem; }

/* ─── Prev/Next navigation ─── */
.chapter-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(51, 65, 85, 0.4);
}
.chapter-nav a {
  display: flex;
  flex-direction: column;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(51, 65, 85, 0.4);
  border-radius: 0.5rem;
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
  max-width: 48%;
}
.chapter-nav a:hover {
  border-color: rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.04);
}
.chapter-nav .nav-label {
  font-size: 0.7rem;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.chapter-nav .nav-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #e2e8f0;
  text-decoration: none;
}
.chapter-nav .next { text-align: right; margin-left: auto; }

/* ─── Mobile sidebar toggle ─── */
@media (max-width: 1023px) {
  .manual-sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    width: 280px;
    z-index: 100;
    transition: left 0.25s ease;
    box-shadow: none;
  }
  .manual-sidebar.open {
    left: 0;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
  }
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
  }
  .sidebar-overlay.open { display: block; }
}
@media (min-width: 1024px) {
  .sidebar-overlay { display: none !important; }
  .mobile-sidebar-btn { display: none !important; }
}

/* ─── Search ─── */
.search-input {
  width: 100%;
  padding: 0.5rem 0.75rem 0.5rem 2rem;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: 0.5rem;
  color: #e2e8f0;
  font-size: 0.8rem;
  outline: none;
  transition: border-color 0.15s;
}
.search-input::placeholder { color: #475569; }
.search-input:focus { border-color: rgba(245, 158, 11, 0.5); }

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #0f172a;
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: 0 0 0.5rem 0.5rem;
  max-height: 300px;
  overflow-y: auto;
  z-index: 50;
  display: none;
}
.search-results.active { display: block; }
.search-result-item {
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  color: #94a3b8;
  cursor: pointer;
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
}
.search-result-item:hover { background: rgba(51, 65, 85, 0.3); color: #e2e8f0; }
.search-result-item mark { background: rgba(245, 158, 11, 0.25); color: #fbbf24; }

/* ─── Print ─── */
@media print {
  .manual-sidebar, .sidebar-overlay, .mobile-sidebar-btn,
  .chapter-nav, .cmd-copy-btn, .search-input { display: none !important; }
  .manual-layout { grid-template-columns: 1fr; }
  .chapter-content { max-width: 100%; padding: 0; }
  .chapter-content h1 { font-size: 1.5rem; }
  .chapter-content h2 { font-size: 1.2rem; break-after: avoid; }
  .cmd-block { break-inside: avoid; }
  body { background: white; color: #1e293b; }
  .chapter-content p, .chapter-content li, .chapter-content td { color: #334155; }
  .chapter-content th { background: #f1f5f9; color: #1e293b; }
  .chapter-content code:not(pre code) { background: #f1f5f9; color: #1e293b; }
  .cmd-block { background: #f8fafc; border-color: #e2e8f0; }
  .cmd-block pre { color: #1e293b; }
}