/* AICOM Cosmic Encyclopedia — premium storybook for geek children of the future */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700&family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --void: #030014;
  --deep: #0a0520;
  --nebula-1: #7c3aed;
  --nebula-2: #06b6d4;
  --nebula-3: #f472b6;
  --nebula-4: #fbbf24;
  --nebula-5: #34d399;
  --star: #fef3c7;
  --glass: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --text: #e8e4ff;
  --text-dim: #a89fd4;
  --glow-purple: 0 0 40px rgba(124, 58, 237, 0.45);
  --glow-cyan: 0 0 40px rgba(6, 182, 212, 0.35);
  --radius: 20px;
  --font-display: 'Cinzel', Georgia, serif;
  --font-body: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--void);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

/* Starfield */
.cosmos {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 120% 80% at 20% 0%, rgba(124, 58, 237, 0.22), transparent 50%),
    radial-gradient(ellipse 100% 60% at 80% 20%, rgba(6, 182, 212, 0.15), transparent 45%),
    radial-gradient(ellipse 80% 50% at 50% 100%, rgba(244, 114, 182, 0.12), transparent 40%),
    linear-gradient(180deg, #030014 0%, #0a0520 40%, #12082a 100%);
}

.stars {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(1px 1px at 10% 20%, var(--star) 50%, transparent 51%),
    radial-gradient(1px 1px at 30% 60%, rgba(255,255,255,0.7) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 70% 15%, var(--star) 50%, transparent 51%),
    radial-gradient(1px 1px at 85% 75%, rgba(255,255,255,0.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 50% 40%, rgba(255,255,255,0.6) 50%, transparent 51%),
    radial-gradient(2px 2px at 15% 85%, var(--nebula-4) 50%, transparent 51%),
    radial-gradient(1px 1px at 92% 35%, var(--nebula-2) 50%, transparent 51%);
  background-size: 400px 400px;
  animation: drift 120s linear infinite;
  opacity: 0.7;
}

@keyframes drift {
  from { transform: translateY(0); }
  to { transform: translateY(-400px); }
}

/* Layout */
.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

/* Cover — storybook gate to the galaxy */
.cover {
  min-height: 100vh;
  padding: 2rem 1.25rem 3rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cover-frame {
  position: relative;
  width: min(920px, 100%);
  border: 1px solid rgba(196, 181, 253, 0.35);
  border-radius: 28px;
  overflow: hidden;
  background:
    linear-gradient(160deg, rgba(76, 29, 149, 0.35) 0%, rgba(3, 0, 20, 0.95) 45%, rgba(8, 47, 73, 0.25) 100%);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.06) inset,
    0 30px 80px rgba(0,0,0,0.55),
    0 0 120px rgba(124, 58, 237, 0.2);
}

.cover-scene {
  position: absolute;
  inset: 0;
  opacity: 0.55;
  pointer-events: none;
}

.cover-art-svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cover-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 3.5rem 2rem 2.5rem;
}

.cover-sigils {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  color: rgba(196, 181, 253, 0.55);
  letter-spacing: 0.5em;
  background: linear-gradient(90deg, transparent, rgba(124,58,237,0.15), transparent);
}

.cover-sigils.bottom { border-top: 1px solid rgba(196, 181, 253, 0.12); }
.cover-sigils.top { border-bottom: 1px solid rgba(196, 181, 253, 0.12); }

.cover-kicker {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.55em;
  color: var(--nebula-2);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.cover .edition {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  color: rgba(167, 139, 250, 0.9);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  line-height: 1.6;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cover-title {
  font-family: var(--font-display);
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.cover-title-line {
  display: block;
  font-size: clamp(2rem, 5.5vw, 3.2rem);
  font-weight: 700;
  color: #fef3c7;
  text-shadow:
    0 0 30px rgba(251, 191, 36, 0.35),
    0 0 60px rgba(124, 58, 237, 0.25),
    0 2px 0 rgba(0,0,0,0.4);
  letter-spacing: 0.04em;
}

.cover-title-sub {
  display: block;
  margin-top: 0.35rem;
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 600;
  color: #c4b5fd;
  letter-spacing: 0.08em;
}

.cover .subtitle {
  font-size: clamp(0.95rem, 2.2vw, 1.1rem);
  color: rgba(216, 208, 255, 0.82);
  max-width: 580px;
  margin: 0 auto 1.75rem;
  line-height: 1.65;
  font-weight: 400;
}

.cover-orbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1.75rem;
}

.cover-orbs .orb {
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  border: 1px solid rgba(255,255,255,0.12);
}

.orb.purple { background: rgba(124,58,237,0.25); color: #e9d5ff; border-color: rgba(196,181,253,0.35); }
.orb.cyan { background: rgba(6,182,212,0.2); color: #a5f3fc; border-color: rgba(103,232,249,0.35); }
.orb.pink { background: rgba(244,114,182,0.18); color: #fbcfe8; border-color: rgba(249,168,212,0.35); }
.orb.gold { background: rgba(251,191,36,0.15); color: #fde68a; border-color: rgba(252,211,77,0.35); }
.orb.green { background: rgba(52,211,153,0.15); color: #a7f3d0; border-color: rgba(110,231,183,0.35); }

.cover-nav { margin-bottom: 0.5rem; }

/* Legacy planet (portal only) */
.planet-hero {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, #c4b5fd, #7c3aed 40%, #4c1d95 70%, #1e1b4b);
  box-shadow:
    var(--glow-purple),
    inset -20px -20px 60px rgba(0,0,0,0.5),
    inset 10px 10px 40px rgba(255,255,255,0.15);
  margin-bottom: 2.5rem;
  animation: float 6s ease-in-out infinite;
  position: relative;
}

.planet-hero::after {
  content: '';
  position: absolute;
  inset: -30px;
  border-radius: 50%;
  border: 2px solid rgba(124, 58, 237, 0.3);
  animation: pulse-ring 4s ease-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-18px) rotate(3deg); }
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.4); opacity: 0; }
}

.cover h1.cover-title,
.cover h1 {
  /* PDF-safe: no background-clip text */
  background: none;
  -webkit-text-fill-color: unset;
}

/* removed old .cover h1 gradient block */

.lang-switch {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.lang-switch a {
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.25s;
  backdrop-filter: blur(8px);
}

.lang-switch a:hover, .lang-switch a.active {
  border-color: var(--nebula-2);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.15em;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* TOC */
.toc {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 2.5rem 2.5rem;
  margin: 3rem 0;
  backdrop-filter: blur(12px);
}

.toc h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
  color: var(--nebula-4);
}

.toc ol {
  columns: 2;
  column-gap: 2rem;
  list-style: none;
  counter-reset: chapter;
}

.toc li {
  counter-increment: chapter;
  margin-bottom: 0.6rem;
  break-inside: avoid;
}

.toc a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.toc a::before {
  content: counter(chapter, decimal-leading-zero) " · ";
  color: var(--nebula-2);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.toc a:hover { color: var(--nebula-3); }

/* Chapters */
.chapter {
  margin: 4rem 0;
  scroll-margin-top: 2rem;
  padding: 2.5rem 2.5rem 2.25rem;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(124,58,237,0.06) 0%, transparent 120px);
  border: 1px solid rgba(255,255,255,0.04);
  overflow: visible;
}

.chapter > .lead:first-child,
.chapter-header + .lead {
  margin-top: 0.5rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 1.75rem 0 2rem;
}

.chapter p {
  margin-bottom: 1rem;
  color: rgba(216, 208, 255, 0.88);
}

.chapter-header {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2rem;
  overflow: visible;
  padding-top: 0.15rem;
}

.chapter-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: #67e8f9;
  text-shadow: 0 0 24px rgba(6, 182, 212, 0.4);
  line-height: 1.25;
  padding: 0.05em 0 0.2em;
  display: block;
  flex-shrink: 0;
  opacity: 0.9;
}

.chapter h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  color: #fef3c7;
}

.chapter .lead {
  font-size: 1.15rem;
  color: var(--text-dim);
  margin-bottom: 2rem;
  border-left: 3px solid var(--nebula-1);
  padding-left: 1.25rem;
}

.planet-card {
  background: linear-gradient(145deg, rgba(124,58,237,0.12), rgba(6,182,212,0.06));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.planet-card::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  opacity: 0.15;
}

.planet-card.purple::before { background: var(--nebula-1); }
.planet-card.cyan::before { background: var(--nebula-2); }
.planet-card.pink::before { background: var(--nebula-3); }
.planet-card.gold::before { background: var(--nebula-4); }
.planet-card.green::before { background: var(--nebula-5); }

.planet-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow-purple);
}

.planet-card .icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.planet-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: #fef3c7;
}

.planet-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.planet-card .tag {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  background: rgba(6, 182, 212, 0.15);
  color: var(--nebula-2);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

/* Oracle constellation */
.oracle-section {
  margin: 2rem 0;
}

.oracle-grid-hint {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.oracle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
}

.oracle-chip-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.oracle-chip {
  display: block;
  text-decoration: none;
  color: inherit;
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(196, 181, 253, 0.2);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  font-size: 0.85rem;
  transition: transform 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.oracle-chip:hover {
  background: rgba(124, 58, 237, 0.22);
  border-color: var(--nebula-1);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(124, 58, 237, 0.2);
}

.oracle-chip strong {
  display: block;
  color: #c4b5fd;
  font-family: var(--font-display);
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.oracle-skill {
  display: block;
  color: var(--text-dim);
  line-height: 1.45;
  font-size: 0.78rem;
}

.oracle-open {
  display: block;
  margin-top: 0.45rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--nebula-2);
}

.oracle-cockpit-link {
  display: block;
  padding: 0 0.25rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--nebula-4);
  text-decoration: none;
}

.oracle-cockpit-link:hover {
  color: var(--nebula-3);
  text-decoration: underline;
}

.demo-strip {
  margin-top: 1.25rem;
  padding: 1rem 1.15rem;
  border-radius: 12px;
  border: 1px solid rgba(6, 182, 212, 0.25);
  background: rgba(6, 182, 212, 0.06);
}

.demo-strip h4 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--nebula-2);
  font-weight: 600;
}

.demo-strip-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.demo-link {
  color: var(--nebula-2);
  text-decoration: none;
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(6, 182, 212, 0.35);
}

.demo-link:hover {
  color: var(--nebula-3);
  border-bottom-color: var(--nebula-3);
}

.diagram-link {
  display: block;
  text-decoration: none;
  border-radius: 10px;
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.diagram-link:hover {
  box-shadow: 0 0 0 2px rgba(6, 182, 212, 0.45);
}

.diagram-caption .demo-link {
  display: inline-block;
  margin-left: 0.35rem;
  font-size: 0.82rem;
}

/* Diagrams */
.diagram-box {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
  overflow: hidden;
}

.diagram-hero {
  padding: 1rem;
  background: linear-gradient(180deg, rgba(15, 8, 40, 0.8), rgba(3, 0, 20, 0.95));
}

.diagram-figure {
  margin: 0 0 1.25rem;
}

.diagram-figure:last-child {
  margin-bottom: 0;
}

.diagram-photo {
  width: 100%;
  display: block;
  border-radius: 14px;
  border: 1px solid rgba(196, 181, 253, 0.2);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

.diagram-box svg {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}

.diagram-caption {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 1rem;
  font-style: italic;
}

/* Screenshots */
.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.shot {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: var(--glass);
}

.shot img {
  width: 100%;
  display: block;
  height: auto;
  min-height: 120px;
  object-fit: contain;
  object-position: top center;
  background: rgba(0, 0, 0, 0.25);
}

.shot figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.88rem;
  overflow: hidden;
  border-radius: 12px;
}

.data-table th {
  background: rgba(124, 58, 237, 0.25);
  padding: 0.75rem 1rem;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  color: #fef3c7;
}

.data-table td {
  padding: 0.65rem 1rem;
  border-top: 1px solid var(--glass-border);
  color: var(--text-dim);
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.data-table code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--nebula-2);
}

/* FAQ */
.faq-section {
  margin: 2rem 0;
}

.faq-group h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--nebula-4);
  margin: 2rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--glass-border);
}

.faq-item {
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  margin-bottom: 0.75rem;
  overflow: hidden;
  background: var(--glass);
}

.faq-q {
  margin: 0;
  padding: 1rem 1.25rem 0.45rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.45;
}

.faq-q::before {
  content: 'Q · ';
  color: var(--nebula-2);
  font-family: var(--font-display);
}

.faq-item .answer {
  padding: 0 1.25rem 1.25rem 1.25rem;
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.55;
}

.faq-item .answer::before {
  content: 'A · ';
  color: var(--nebula-4);
  font-weight: 600;
  font-family: var(--font-display);
}

.faq-item .answer a.demo-link {
  color: var(--nebula-2);
  text-decoration: underline;
  text-decoration-color: rgba(6, 182, 212, 0.4);
  text-underline-offset: 2px;
}

.faq-item .answer a.demo-link:hover {
  color: var(--nebula-3);
}

/* Code blocks */
pre, code {
  font-family: var(--font-mono);
}

pre {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  font-size: 0.82rem;
  margin: 1rem 0;
  color: #a5f3fc;
}

/* Links */
a { color: var(--nebula-2); }
a:hover { color: var(--nebula-3); }

/* Footer */
.epilogue {
  text-align: center;
  padding: 4rem 2rem;
  margin-top: 4rem;
  border-top: 1px solid var(--glass-border);
}

.epilogue p {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-dim);
}

.epilogue-body {
  max-width: 36rem;
  margin: 0 auto;
  line-height: 1.6;
}

.epilogue-tagline {
  max-width: 36rem;
  margin: 1.25rem auto 0;
  font-size: 1.15rem;
  color: var(--text);
  line-height: 1.5;
}

.epilogue-meta {
  margin-top: 1.25rem;
  font-size: 0.8rem;
  color: var(--text-dim);
  opacity: 0.85;
}

.epilogue .sigil {
  font-size: 3rem;
  margin-bottom: 1rem;
  animation: float 4s ease-in-out infinite;
}

/* Print / PDF */
@media print {
  @page {
    size: A4;
    margin: 0;
  }

  @page :first {
    margin: 0;
  }

  .scroll-hint, .lang-switch, .cover-nav { display: none !important; }
  html, body {
    background: #0a0520 !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .cosmos, .stars {
    display: block !important;
    position: fixed;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .stars { animation: none; opacity: 0.45; }
  .wrap {
    padding: 12mm 12mm 6mm;
    max-width: 100%;
    box-sizing: border-box;
  }
  .cover {
    /* Exactly one sheet — 297mm page minus Playwright footer strip (~12mm) */
    min-height: 0;
    height: calc(297mm - 12mm);
    max-height: calc(297mm - 12mm);
    padding: 0;
    margin: 0;
    page-break-after: always;
    break-after: page;
    display: block;
    box-sizing: border-box;
  }
  .cover-frame {
    width: 100%;
    height: 100%;
    min-height: 100%;
    border-radius: 0;
    border: none;
    box-shadow: none;
  }
  .cover-inner { padding: 2rem 1.5rem 1.25rem; }
  .cover-title-line { font-size: 2.2rem; }
  .cover .subtitle { font-size: 0.9rem; }
  .toc {
    page-break-after: always;
    break-after: page;
    margin-top: 0;
    padding: 8mm 12mm 10mm;
  }
  .chapter {
    break-inside: auto;
    overflow: visible;
    margin-top: 6mm;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
  }
  .chapter > * {
    background: linear-gradient(180deg, rgba(124, 58, 237, 0.07) 0%, rgba(8, 5, 28, 0.55) 100%);
    border: 1px solid rgba(196, 181, 253, 0.1);
    border-radius: 12px;
    padding: 8mm 10mm;
    margin-bottom: 5mm;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
  }
  .chapter-header {
    break-after: avoid;
    break-inside: avoid;
    overflow: visible;
    margin-bottom: 5mm;
  }
  .chapter .lead {
    margin-bottom: 5mm;
    break-after: avoid;
    padding-left: 6mm;
  }
  .card-grid {
    margin-top: 0;
    padding: 6mm 8mm;
    gap: 5mm;
  }
  .planet-card {
    break-inside: avoid;
    page-break-inside: avoid;
    padding: 5mm 6mm 6mm;
  }
  .oracle-chip-wrap { break-inside: avoid; page-break-inside: avoid; }
  .oracle-chip { break-inside: avoid; page-break-inside: avoid; }
  a.oracle-chip::after {
    content: ' (' attr(href) ')';
    display: block;
    margin-top: 0.25rem;
    font-size: 0.62rem;
    font-family: var(--font-mono);
    color: var(--text-dim);
    word-break: break-all;
    opacity: 0.75;
  }
  .demo-strip { break-inside: avoid; page-break-inside: avoid; }
  .faq-q { break-after: avoid; page-break-after: avoid; }
  .faq-item .answer {
    color: var(--text-dim);
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .chapter-num { line-height: 1.3; padding-bottom: 0.25em; }
  .diagram-box {
    margin-top: 6mm;
    break-inside: auto;
    padding: 5mm;
  }
  .diagram-hero { padding: 5mm; }
  .epilogue {
    min-height: calc(297mm - 24mm);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 14mm 10mm 12mm;
    margin-top: 0;
    break-inside: avoid;
    page-break-inside: avoid;
    break-before: page;
    page-break-before: always;
    background: linear-gradient(180deg, rgba(124, 58, 237, 0.07) 0%, rgba(8, 5, 28, 0.55) 100%);
    border: 1px solid rgba(196, 181, 253, 0.1);
    border-radius: 12px;
    box-sizing: border-box;
  }
  .epilogue-body,
  .epilogue-tagline,
  .epilogue-meta {
    orphans: 3;
    widows: 3;
  }
  .epilogue-tagline {
    break-inside: avoid;
    page-break-inside: avoid;
  }
  .epilogue .sigil { animation: none; }
  .diagram-figure {
    break-inside: avoid;
    page-break-inside: avoid;
    margin: 0 0 8mm;
  }
  .diagram-photo {
    max-height: 168mm;
    width: 100%;
    object-fit: contain;
    object-position: top center;
  }
  .diagram-caption {
    margin-top: 3mm;
    padding-top: 2mm;
    break-before: avoid;
  }
  .shot {
    break-inside: avoid;
    page-break-inside: avoid;
  }
  .shot img {
    max-height: 130mm;
    width: 100%;
    height: auto;
    aspect-ratio: unset;
    object-fit: contain;
  }
  .screenshot-gallery, pre, .data-table {
    margin-top: 6mm;
  }
  pre, .data-table { break-inside: avoid; }
  p {
    orphans: 3;
    widows: 3;
  }
}

@media (max-width: 700px) {
  .toc ol { columns: 1; }
  .chapter-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}