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var(--c-rule);background:var(--c-surface)}.site-header .container{display:flex;align-items:center;justify-content:space-between;padding-top:1.25rem;padding-bottom:1.25rem;gap:2rem;flex-wrap:wrap}.brand{display:inline-flex;flex-direction:column;line-height:1.1;border-bottom:none}.brand-mark{font-family:var(--f-serif);font-size:1.5rem;font-weight:600;letter-spacing:-.01em;color:var(--c-ink)}.brand-tagline{font-size:.75rem;color:var(--c-ink-muted);letter-spacing:.04em;text-transform:uppercase;margin-top:.15rem}.site-nav{display:flex;gap:1.5rem;flex-wrap:wrap}.site-nav a{color:var(--c-ink);font-size:.95rem;border-bottom:none}.site-nav a:hover{color:var(--c-accent)}.site-main{flex:1 1;padding:3rem 0 4rem}h1,h2,h3{font-family:var(--f-serif);font-weight:600;letter-spacing:-.01em;color:var(--c-ink);line-height:1.2}h1{font-size:2rem;margin-bottom:.5rem}h2{font-size:1.4rem;margin:2.5rem 0 .75rem}h3{font-size:1.1rem;margin:1.5rem 0 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td{font-family:var(--f-mono)}table.data tbody td:first-child{font-family:var(--f-sans);color:var(--c-ink-muted)}.note{font-size:.875rem;color:var(--c-ink-muted);border-left:2px solid var(--c-rule-strong);padding:.4rem 0 .4rem 1rem;margin:1.5rem 0}pre.formula{font-family:var(--f-mono);font-size:.875rem;background:var(--c-accent-soft);border-left:3px solid var(--c-accent);padding:.85rem 1rem;margin:1rem 0;overflow-x:auto;white-space:pre;line-height:1.5;color:var(--c-ink)}.site-footer{border-top:1px solid var(--c-rule);background:var(--c-surface);padding:2rem 0;margin-top:4rem;font-size:.875rem;color:var(--c-ink-muted)}.footer-row{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;margin-bottom:1rem}.site-footer nav{display:flex;gap:1.25rem;flex-wrap:wrap}.site-footer a{color:var(--c-ink-muted);border-bottom:none}.site-footer a:hover{color:var(--c-accent)}.footer-attribution{margin:0;color:var(--c-ink-faint);font-size:.8rem;max-width:none}