/* ============================================================
   Dark Theme — AI Agents Guide (Teal Accent)
   ============================================================ */

/* --- Custom Properties --- */
:root {
  --bg-base:        #080808;
  --bg-surface:     #111111;
  --bg-elevated:    #1a1a1a;
  --bg-code:        #0f0f0f;
  --bg-highlight:   #0f1f1d;

  --border:         #2a2a2a;
  --border-subtle:  #1e1e1e;

  --text-primary:   #e8e8e8;
  --text-secondary: #999999;
  --text-muted:     #555555;

  --accent:         #14b8a6;
  --accent-dim:     #0d9488;
  --accent-glow:    rgba(20, 184, 166, 0.15);
  --accent-subtle:  rgba(20, 184, 166, 0.08);

  --green:          #22c55e;
  --blue:           #3b82f6;
  --purple:         #a855f7;
  --yellow:         #eab308;
  --orange:         #f97316;
  --red:            #ef4444;
  --cyan:           #06b6d4;
  --pink:           #ec4899;

  --sidebar-width:  260px;
  --font-sans:      'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:      'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'SF Mono', Consolas, monospace;

  --radius-sm:      4px;
  --radius:         6px;
  --radius-lg:      10px;

  --transition:     150ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* --- Layout --- */
.layout {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  flex-shrink: 0;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.sidebar-header {
  padding: 1.25rem 1.125rem;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: color var(--transition);
}

.logo:hover { color: var(--accent); }
.logo-icon { font-size: 1.1rem; line-height: 1; }
.logo-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.sidebar-nav {
  flex: 1;
  padding: 0.625rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.nav-item {
  display: block;
  padding: 0.4375rem 0.75rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 400;
  line-height: 1.4;
  transition: color var(--transition), background-color var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-item:hover {
  color: var(--text-primary);
  background-color: var(--bg-elevated);
}

.nav-item.active {
  color: var(--accent);
  background-color: var(--accent-subtle);
  font-weight: 500;
}

.sidebar-footer {
  padding: 0.875rem 1.125rem;
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.github-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  transition: color var(--transition);
}

.github-link:hover { color: var(--text-secondary); }

/* --- Mobile sidebar toggle --- */
.sidebar-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 200;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 2.25rem;
  height: 2.25rem;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 0.375rem;
  transition: background-color var(--transition), border-color var(--transition);
}

.sidebar-toggle:hover {
  background: var(--bg-surface);
  border-color: var(--accent);
}

.sidebar-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--text-secondary);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

.sidebar-toggle.active span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.sidebar-toggle.active span:nth-child(2) { opacity: 0; }
.sidebar-toggle.active span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 90;
  backdrop-filter: blur(2px);
}

/* --- Main content area --- */
.main-content {
  flex: 1;
  min-width: 0;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.content {
  flex: 1;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  padding: 3rem 2.5rem 4rem;
}

/* --- Footer --- */
.content-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 1.25rem 2.5rem;
}

.footer-inner {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--text-muted);
  font-size: 0.8125rem;
}

.footer-inner a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-inner a:hover { color: var(--accent); }
.footer-sep { color: var(--border); }

/* ============================================================
   Typography
   ============================================================ */

.content h1 {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1rem;
  margin-top: 0;
}

.content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-top: 2.5rem;
  margin-bottom: 0.875rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.content h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--accent);
  margin-top: 2rem;
  margin-bottom: 0.625rem;
}

.content h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.content h5, .content h6 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 1.25rem;
  margin-bottom: 0.375rem;
}

.content p {
  margin-bottom: 1.125rem;
  color: var(--text-primary);
}

.content p:last-child { margin-bottom: 0; }

.content a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.content a:hover {
  color: var(--accent-dim);
  border-bottom-color: var(--accent-dim);
}

.content strong { font-weight: 600; color: var(--text-primary); }
.content em { color: var(--text-secondary); font-style: italic; }

/* --- Blockquote --- */
.content blockquote {
  margin: 1.5rem 0;
  padding: 0.875rem 1.125rem;
  background: var(--accent-subtle);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.content blockquote p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin: 0;
}

.content blockquote strong { color: var(--accent); }

/* --- Horizontal rule --- */
.content hr {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 2.5rem 0;
}

/* --- Lists --- */
.content ul, .content ol {
  padding-left: 1.625rem;
  margin-bottom: 1.125rem;
}

.content li {
  margin-bottom: 0.3125rem;
  color: var(--text-primary);
}

.content li::marker { color: var(--accent); }

.content li > ul, .content li > ol {
  margin-top: 0.3125rem;
  margin-bottom: 0.3125rem;
}

/* ============================================================
   Code Blocks
   ============================================================ */

.content code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background: var(--bg-elevated);
  color: var(--accent);
  padding: 0.125rem 0.3125rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.content pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.375rem;
  overflow-x: auto;
  margin: 1.375rem 0;
  font-size: 0.8125rem;
  line-height: 1.65;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.content pre::-webkit-scrollbar { height: 4px; }
.content pre::-webkit-scrollbar-track { background: transparent; }
.content pre::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.content pre code {
  background: transparent;
  color: var(--text-primary);
  padding: 0;
  border: none;
  border-radius: 0;
  font-size: inherit;
  white-space: pre;
}

/* --- Rouge syntax highlighting (dark theme) --- */
.highlight { background: var(--bg-code); }

.highlight .c, .highlight .cd, .highlight .cm, .highlight .c1, .highlight .cs { color: #6b7280; font-style: italic; }
.highlight .err { color: #f87171; }
.highlight .k, .highlight .kc, .highlight .kd, .highlight .kn, .highlight .kp, .highlight .kr, .highlight .kt { color: #a78bfa; font-weight: 500; }
.highlight .o { color: #94a3b8; }
.highlight .p { color: #94a3b8; }
.highlight .na { color: #34d399; }
.highlight .nb { color: #60a5fa; }
.highlight .nc { color: #34d399; font-weight: 500; }
.highlight .no { color: #14b8a6; }
.highlight .nd { color: #14b8a6; }
.highlight .ni { color: #e5e7eb; }
.highlight .ne { color: #f87171; }
.highlight .nf { color: #60a5fa; font-weight: 500; }
.highlight .nl { color: #e5e7eb; }
.highlight .nn { color: #34d399; }
.highlight .nt { color: #60a5fa; }
.highlight .nv { color: #e5e7eb; }
.highlight .ow { color: #a78bfa; }
.highlight .w { color: #e5e7eb; }
.highlight .l, .highlight .ld, .highlight .m, .highlight .mb, .highlight .mf,
.highlight .mh, .highlight .mi, .highlight .mo { color: #fb923c; }
.highlight .s, .highlight .sb, .highlight .sc, .highlight .sd, .highlight .s2,
.highlight .se, .highlight .sh, .highlight .si, .highlight .sx, .highlight .sr,
.highlight .s1, .highlight .ss { color: #86efac; }
.highlight .bp { color: #60a5fa; }
.highlight .vc, .highlight .vg, .highlight .vi { color: #e5e7eb; }
.highlight .il { color: #fb923c; }

/* ============================================================
   Tables
   ============================================================ */

.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.875rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: block;
  overflow-x: auto;
}

.content thead { background: var(--bg-elevated); }

.content th {
  padding: 0.6875rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.content td {
  padding: 0.5625rem 1rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}

.content tr:last-child td { border-bottom: none; }
.content tbody tr:hover { background: var(--bg-elevated); }

/* ============================================================
   HTML/CSS Diagrams
   ============================================================ */

.diagram {
  margin: 1.75rem 0;
  padding: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

.diagram-title {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
  text-align: center;
}

/* --- Flow diagram (vertical) --- */
.flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.flow-node {
  padding: 0.625rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  text-align: center;
  min-width: 180px;
  position: relative;
}

.flow-node.accent {
  border-color: var(--accent);
  background: var(--accent-subtle);
  color: var(--accent);
}

.flow-node.green {
  border-color: var(--green);
  background: rgba(34, 197, 94, 0.08);
  color: var(--green);
}

.flow-node.blue {
  border-color: var(--blue);
  background: rgba(59, 130, 246, 0.08);
  color: var(--blue);
}

.flow-node.purple {
  border-color: var(--purple);
  background: rgba(168, 85, 247, 0.08);
  color: var(--purple);
}

.flow-node.orange {
  border-color: var(--orange);
  background: rgba(249, 115, 22, 0.08);
  color: var(--orange);
}

.flow-node.yellow {
  border-color: var(--yellow);
  background: rgba(234, 179, 8, 0.08);
  color: var(--yellow);
}

.flow-node.pink {
  border-color: var(--pink);
  background: rgba(236, 72, 153, 0.08);
  color: var(--pink);
}

.flow-node.red {
  border-color: var(--red);
  background: rgba(239, 68, 68, 0.08);
  color: var(--red);
}

.flow-node.wide { min-width: 260px; }
.flow-node.narrow { min-width: 120px; }

.flow-node small {
  display: block;
  font-size: 0.6875rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.flow-arrow {
  width: 2px;
  height: 24px;
  background: var(--border);
  position: relative;
}

.flow-arrow::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--border);
}

.flow-arrow.accent { background: var(--accent); }
.flow-arrow.accent::after { border-top-color: var(--accent); }

.flow-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
  padding: 0.25rem 0;
  text-align: center;
}

/* --- Horizontal flow --- */
.flow-h {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  justify-content: center;
}

.flow-h .flow-arrow {
  width: 32px;
  height: 2px;
  background: var(--border);
}

.flow-h .flow-arrow::after {
  bottom: auto;
  left: auto;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  border-left: 6px solid var(--border);
  border-right: none;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.flow-h .flow-arrow.accent { background: var(--accent); }
.flow-h .flow-arrow.accent::after { border-left-color: var(--accent); }

/* --- Grid / card layout for components --- */
.diagram-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.diagram-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.diagram-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.diagram-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.diagram-card {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  text-align: center;
}

.diagram-card .card-icon {
  font-size: 1.5rem;
  margin-bottom: 0.375rem;
}

.diagram-card .card-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.diagram-card .card-desc {
  font-size: 0.6875rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.diagram-card.accent { border-color: var(--accent); }
.diagram-card.accent .card-title { color: var(--accent); }

.diagram-card.green { border-color: var(--green); }
.diagram-card.green .card-title { color: var(--green); }

.diagram-card.blue { border-color: var(--blue); }
.diagram-card.blue .card-title { color: var(--blue); }

.diagram-card.purple { border-color: var(--purple); }
.diagram-card.purple .card-title { color: var(--purple); }

.diagram-card.orange { border-color: var(--orange); }
.diagram-card.orange .card-title { color: var(--orange); }

/* --- Cycle / Loop diagram --- */
.cycle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  padding: 1rem 0;
}

.cycle-step {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  text-align: center;
  min-width: 100px;
}

.cycle-arrow {
  width: 28px;
  height: 2px;
  background: var(--accent);
  position: relative;
  flex-shrink: 0;
}

.cycle-arrow::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  border-left: 6px solid var(--accent);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

/* --- Layer stack --- */
.layer-stack {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.layer {
  padding: 0.625rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 500;
  text-align: center;
  color: var(--text-primary);
  background: var(--bg-elevated);
}

.layer.accent { border-color: var(--accent); color: var(--accent); background: var(--accent-subtle); }
.layer.green { border-color: var(--green); color: var(--green); background: rgba(34, 197, 94, 0.08); }
.layer.blue { border-color: var(--blue); color: var(--blue); background: rgba(59, 130, 246, 0.08); }
.layer.purple { border-color: var(--purple); color: var(--purple); background: rgba(168, 85, 247, 0.08); }
.layer.orange { border-color: var(--orange); color: var(--orange); background: rgba(249, 115, 22, 0.08); }

.layer small {
  font-weight: 400;
  font-size: 0.6875rem;
  color: var(--text-muted);
}

/* --- Comparison split --- */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.compare-side {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.compare-side .compare-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.625rem;
  padding-bottom: 0.375rem;
  border-bottom: 1px solid var(--border-subtle);
}

.compare-side.left .compare-title { color: var(--accent); }
.compare-side.right .compare-title { color: var(--orange); }

.compare-side ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.compare-side li {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  padding: 0.1875rem 0;
}

.compare-side li::before {
  content: '→ ';
  color: var(--text-muted);
}

/* --- Timeline --- */
.timeline {
  position: relative;
  padding-left: 1.75rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0.5rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 1.25rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.375rem;
  top: 0.375rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-surface);
}

.timeline-item .timeline-year {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.timeline-item .timeline-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 0.125rem;
}

.timeline-item .timeline-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.125rem;
}

/* --- Wrapper for centering --- */
.diagram-center {
  display: flex;
  justify-content: center;
}

/* ============================================================
   Special elements
   ============================================================ */

.content h1 + p > em:only-child,
.content h1 + blockquote {
  color: var(--text-secondary);
}

.content > p:first-child > a[href*="README"] {
  display: inline-flex;
  align-items: center;
  gap: 0.3125rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  border-bottom: none;
  margin-bottom: 0.5rem;
  padding: 0.25rem 0;
  transition: color var(--transition);
}

.content > p:first-child > a[href*="README"]:hover {
  color: var(--accent);
  border-bottom: none;
}

/* ============================================================
   Responsive — Mobile
   ============================================================ */

@media (max-width: 768px) {
  .sidebar-toggle { display: flex; }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 250ms ease;
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
  }

  .sidebar-overlay {
    display: block;
    opacity: 0;
    pointer-events: none;
    transition: opacity 250ms ease;
  }

  .sidebar-overlay.visible {
    opacity: 1;
    pointer-events: auto;
  }

  .main-content { margin-left: 0; }

  .content { padding: 4.5rem 1.25rem 3rem; }
  .content-footer { padding: 1rem 1.25rem; }
  .content h1 { font-size: 1.5rem; }
  .content h2 { font-size: 1.125rem; }
  .content pre { font-size: 0.75rem; padding: 1rem; }

  .diagram-grid.cols-3,
  .diagram-grid.cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .compare {
    grid-template-columns: 1fr;
  }

  .flow-h {
    flex-direction: column;
  }

  .flow-h .flow-arrow {
    width: 2px;
    height: 24px;
  }

  .flow-h .flow-arrow::after {
    right: auto;
    top: auto;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--border);
    border-bottom: none;
  }

  .flow-h .flow-arrow.accent::after {
    border-top-color: var(--accent);
    border-left-color: transparent;
  }
}

@media (max-width: 480px) {
  .content { padding: 4.5rem 1rem 2.5rem; }
  .content table { font-size: 0.8125rem; }
  .content th, .content td { padding: 0.5rem 0.625rem; }
}

/* ============================================================
   Print
   ============================================================ */

@media print {
  .sidebar, .sidebar-toggle, .sidebar-overlay, .content-footer { display: none; }
  .main-content { margin-left: 0; }
  .content { max-width: 100%; padding: 1rem; }
  .content pre { white-space: pre-wrap; word-break: break-all; border: 1px solid #ccc; }
  body { background: white; color: black; }
  .diagram { border-color: #ccc; background: #fafafa; }
  .flow-node, .diagram-card, .layer, .cycle-step, .compare-side { border-color: #ccc; background: #fff; color: #111; }
}