:root,:root[data-theme=light]{--bg: #f6f8fb;--surface: #ffffff;--surface-hover: #eef2f7;--border: #d9e0ea;--text: #243343;--muted: #586777;--heading: #123049;--link: #123049;--link-hover: #a9781a;--accent: #b3801d;--accent-soft: rgba(179, 128, 29, .12);--gold-btn: #d7a83c;--gold-btn-text: #123049;--code-bg: #f1f4f8;color-scheme:light}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--bg: #0d1b2a;--surface: #15283d;--surface-hover: #1c3452;--border: #26405c;--text: #dbe4ee;--muted: #94a5b9;--heading: #f2f6fb;--link: #e6b84a;--link-hover: #f2ca63;--accent: #e6b84a;--accent-soft: rgba(230, 184, 74, .14);--gold-btn: #e6b84a;--gold-btn-text: #0d1b2a;--code-bg: #0f2135;color-scheme:dark}}:root[data-theme=dark]{--bg: #0d1b2a;--surface: #15283d;--surface-hover: #1c3452;--border: #26405c;--text: #dbe4ee;--muted: #94a5b9;--heading: #f2f6fb;--link: #e6b84a;--link-hover: #f2ca63;--accent: #e6b84a;--accent-soft: rgba(230, 184, 74, .14);--gold-btn: #e6b84a;--gold-btn-text: 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ease,border-color .15s ease}.theme-toggle:hover{color:var(--accent);border-color:var(--accent)}.hero{padding:80px 0 24px}.hero h1{font-size:2.4rem;line-height:1.15;margin:0 0 16px;max-width:15ch;color:var(--heading)}.hero p{font-size:1.2rem;color:var(--muted);max-width:52ch;margin:0}.lanes{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:48px 0 88px}.lane{display:flex;flex-direction:column;gap:6px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px 22px;text-decoration:none;color:var(--text);transition:border-color .15s ease,transform .15s ease,background .15s 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th{background:var(--code-bg)}.spec-body pre{background:var(--code-bg);border:1px solid var(--border);border-radius:8px;padding:14px 16px;overflow-x:auto}.spec-body pre code{background:none;padding:0}.site-footer{margin-top:64px;padding-top:24px;border-top:1px solid var(--border)}.footer-nav{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}.footer-nav a{color:var(--muted);text-decoration:none;font-size:.9rem}.footer-nav a:hover{color:var(--accent)}@media (max-width: 640px){.lanes{grid-template-columns:1fr}.hero{padding:56px 0 16px}.hero h1{font-size:1.9rem}.hero p{font-size:1.05rem}.spec-page-head{flex-direction:column;align-items:flex-start}}