:root {
  color-scheme: light;
  --cp-bg: #f7f4ef;
  --cp-bg-elevated: #fcfbf8;
  --cp-surface: #ffffff;
  --cp-surface-soft: #f5f5f5;
  --cp-border: #dedede;
  --cp-border-strong: #919191;
  --cp-text: #242424;
  --cp-text-muted: #5c5c5c;
  --cp-text-soft: #6f6f6f;
  --cp-accent: #b11f4b;
  --cp-accent-hover: #9a1a41;
  --cp-accent-soft: rgba(177, 31, 75, 0.08);
  --cp-accent-fg: #ffffff;
  --cp-success: #16a34a;
  --cp-danger: #dc2626;
  --cp-warning: #f59e0b;
  --cp-link: #0078d4;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.12);
  --cp-overlay: rgba(255, 255, 255, 0.8);
  --cp-panel: rgba(255, 255, 255, 0.86);
  --cp-panel-strong: rgba(255, 255, 255, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.55);
  --cp-highlight: rgba(177, 31, 75, 0.12);
}
html[data-theme="dark"] {
  color-scheme: dark;
  --cp-bg: #3d3b3a;
  --cp-bg-elevated: #343231;
  --cp-surface: #292929;
  --cp-surface-soft: #2e2e2e;
  --cp-border: #474747;
  --cp-border-strong: #5f5f5f;
  --cp-text: #dedede;
  --cp-text-muted: #919191;
  --cp-text-soft: #b0b0b0;
  --cp-accent: #fd8ea1;
  --cp-accent-hover: #fb7b91;
  --cp-accent-soft: rgba(253, 142, 161, 0.14);
  --cp-accent-fg: #1a1a1a;
  --cp-success: #4ade80;
  --cp-danger: #f87171;
  --cp-warning: #fbbf24;
  --cp-link: #4da6ff;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
  --cp-overlay: rgba(41, 41, 41, 0.88);
  --cp-panel: rgba(41, 41, 41, 0.72);
  --cp-panel-strong: rgba(41, 41, 41, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.04);
  --cp-highlight: rgba(253, 142, 161, 0.12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 18px/1.75 "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif; background: var(--cp-bg); color: var(--cp-text); }
a { color: var(--cp-link); text-underline-offset: 3px; }
a:hover { color: var(--cp-accent); }
:focus-visible { outline: 3px solid var(--cp-accent); outline-offset: 4px; }
.skip { position: absolute; left: 16px; top: -80px; padding: 8px; background: var(--cp-surface); z-index: 10; }
.skip:focus { top: 8px; }
.masthead { display: flex; justify-content: space-between; gap: 16px; padding: 24px 32px; background: var(--cp-surface); border-bottom: 1px solid var(--cp-border); }
.brand { color: var(--cp-accent); text-decoration: none; font-weight: 750; letter-spacing: .08em; font-size: 14px; }
.masthead span, .edition { color: var(--cp-text-soft); font-size: 13px; }
.layout { display: grid; grid-template-columns: 224px minmax(0, 1456px); max-width: 1680px; margin: auto; }
aside { padding: 32px 24px; border-right: 1px solid var(--cp-border); }
nav { display: grid; gap: 6px; position: sticky; top: 16px; }
nav a { border-radius: .625rem; padding: 10px 12px; text-decoration: none; color: var(--cp-text); font-size: 14px; line-height: 1.4; }
nav a:hover, nav a[aria-current] { background: var(--cp-accent-soft); color: var(--cp-accent); }
nav span { font: 12px Consolas, "Courier New", Courier, monospace; color: var(--cp-text-soft); margin-right: 4px; }
.sidebar-note { color: var(--cp-text-muted); font-size: 12px; border-top: 1px solid var(--cp-border); margin-top: 28px; padding-top: 16px; }
main { min-width: 0; padding: 32px 32px 48px; }
.breadcrumbs { color: var(--cp-text-muted); font-size: 13px; margin-bottom: 16px; }
.edition { text-transform: uppercase; letter-spacing: .07em; margin: 0 0 20px; }
h1 { font-size: clamp(30px, 3.2vw, 48px); line-height: 1.15; letter-spacing: -.03em; margin: 16px 0 24px; max-width: 950px; }
h2 { font-size: 26px; line-height: 1.3; margin: 48px 0 18px; letter-spacing: -.015em; }
h3 { font-size: 21px; line-height: 1.4; margin: 32px 0 12px; }
h4 { font-size: 17px; margin: 24px 0 8px; }
p { margin: 12px 0 20px; }
.lead { font-size: 20px; color: var(--cp-text-muted); max-width: 850px; }
li { margin-bottom: 10px; }
li > p { margin: 8px 0; }
ul, ol { padding-left: 28px; }
.note, .warning, .success { padding: 20px 24px; margin: 24px 0; border: 1px solid var(--cp-border); border-left: 4px solid var(--cp-accent); border-radius: .625rem; background: var(--cp-surface); }
.warning { border-left-color: var(--cp-warning); }
.success { border-left-color: var(--cp-success); }
.note p:last-child, .warning p:last-child, .success p:last-child { margin-bottom: 0; }
.chapter-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 32px 0; }
.chapter-card { display: block; background: var(--cp-surface); border: 1px solid var(--cp-border); border-radius: 16px; padding: 24px; color: var(--cp-text); text-decoration: none; }
.chapter-card:hover { border-color: var(--cp-accent); color: var(--cp-text); }
.chapter-card h2 { font-size: 21px; margin: 12px 0; }
.chapter-card p { font-size: 14px; color: var(--cp-text-muted); margin-bottom: 0; }
.chapter-number { color: var(--cp-accent); font: bold 15px Consolas, "Courier New", Courier, monospace; }
pre { overflow-x: auto; border: 1px solid var(--cp-border); border-radius: .625rem; padding: 20px 24px; background: var(--cp-surface-soft); font-size: 15px; line-height: 1.65; tab-size: 2; }
code { font-family: Consolas, "Courier New", Courier, monospace; }
p code, li code, td code { color: var(--cp-accent); overflow-wrap: anywhere; font-size: .9em; }
pre code { color: var(--cp-text); white-space: pre; }
table { display: block; width: 100%; overflow-x: auto; border-collapse: collapse; margin: 24px 0; background: var(--cp-surface); font-size: 16px; }
td, th { border: 1px solid var(--cp-border); padding: 12px 16px; text-align: left; vertical-align: top; min-width: 130px; }
th { background: var(--cp-surface-soft); font-weight: 650; }
figure { margin: 24px 0; }
figure img { display: block; width: 100%; height: auto; max-height: 1200px; object-fit: contain; background: var(--cp-surface); border: 1px solid var(--cp-border); border-radius: .625rem; }
figcaption { color: var(--cp-text-muted); font-size: 17px; line-height: 1.7; margin: 16px 0 28px; }
.structured-diagram { margin: 28px 0 36px; }
.diagram-toolbar { display: flex; gap: 16px; justify-content: space-between; align-items: baseline; flex-wrap: wrap; margin-bottom: 12px; font-size: 16px; }
.diagram-toolbar span { color: var(--cp-text-muted); }
.diagram-frame { width: 100%; overflow-x: auto; border: 1px solid var(--cp-border); border-radius: .625rem; background: var(--cp-surface); }
.diagram-frame > a { display: block; min-width: 1056px; }
.diagram-frame img { display: block; width: 100%; min-width: 1056px; height: auto; max-height: none; border: 0; border-radius: 0; }
.diagram-reading-note { padding: 16px 20px; margin: 0 0 16px; background: var(--cp-accent-soft); border-left: 4px solid var(--cp-accent); font-size: 18px; }
details { border: 1px solid var(--cp-border); border-radius: .625rem; padding: 16px 20px; margin: 20px 0; background: var(--cp-surface); }
summary { font-weight: 650; cursor: pointer; }
details[open] summary { margin-bottom: 16px; }
.button { display: inline-block; text-decoration: none; border: 1px solid var(--cp-accent); border-radius: .625rem; padding: 10px 16px; background: var(--cp-accent); color: var(--cp-accent-fg); font-weight: 600; font-size: 14px; }
.button:hover { color: var(--cp-accent-fg); background: var(--cp-accent-hover); }
.button.secondary { background: var(--cp-surface); color: var(--cp-accent); }
.pager { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 32px; margin-top: 48px; border-top: 1px solid var(--cp-border); }
footer { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--cp-border); color: var(--cp-text-muted); font-size: 12px; }
.evidence { border-bottom: 1px solid var(--cp-border); padding-bottom: 24px; }
@media (max-width: 1300px) { .layout { display: block; } aside { border-right: 0; border-bottom: 1px solid var(--cp-border); padding: 16px; } nav { position: static; grid-template-columns: repeat(3, minmax(0, 1fr)); } .sidebar-note { display: none; } main { padding: 28px 24px; } }
@media (max-width: 740px) { .masthead { padding: 20px; flex-direction: column; } .layout { display: block; } aside { border-right: 0; border-bottom: 1px solid var(--cp-border); padding: 16px; } nav { position: static; grid-template-columns: 1fr 1fr; } .sidebar-note { display: none; } main { padding: 24px 20px; } .chapter-grid { grid-template-columns: 1fr; } pre { padding: 16px; } }
@media print { aside, .masthead, .pager { display: none; } .layout { display: block; } main { padding: 0; } pre, table, figure { break-inside: avoid; } a { color: var(--cp-text); } }