:root{--deep:#0b1f3a;--abyss:#081427;--teal:#21c7b8;--aqua:#4fd1e0;--glow:#9be8e0;--sand:#e8e4d8;--coral:#ff7a6e;--card:#0f2a4d;--line:rgba(90,180,210,.25);--ink:#e8f2f5;--ink-soft:#b8ccd4;--ink-faint:#7d97a3;--radius:12px;--soul:#21c7b8}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:"Segoe UI",system-ui,-apple-system,sans-serif;background:linear-gradient(180deg,var(--abyss),var(--deep) 40%,#0d2a4a);color:var(--ink);line-height:1.65;min-height:100vh}.site-header{background:rgba(6,18,36,.92);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(8px)}.nav-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;gap:10px;padding:10px 18px;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);font-weight:700;font-size:1.02rem;white-space:nowrap}.brand .sigil{width:26px;height:26px;border-radius:50%;background:radial-gradient(circle at 30% 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a{color:var(--teal)}@media(max-width:900px){.with-sidebar{grid-template-columns:minmax(0,1fr);min-width:0}.with-sidebar>*{min-width:0}.table-wrap{max-width:100%}.toc{position:static;max-height:none}}@media(max-width:640px){.nav-toggle{display:inline-block}.nav-links{display:none;width:100%;flex-direction:column}.nav-links.open{display:flex}.search-box input{width:100%}.card-grid{grid-template-columns:1fr}.hero{padding:40px 16px 32px}}.skip-link{position:absolute;left:12px;top:-60px;z-index:9999;background:#185fa5;color:#fff;padding:10px 16px;border-radius:8px;font-weight:600;text-decoration:none;transition:top .2s ease}.skip-link:focus{top:12px}:focus-visible{outline:3px solid #185fa5;outline-offset:2px;border-radius:4px}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}}@media(max-width:720px){.nav-links.open a{padding:11px 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