:root{--color-bg:#ffffff;--color-text:#1a1a1a;--color-muted:#6b7280;--color-border:#e5e7eb;--color-accent:#1a4e2e;--color-confidence-high:#1a7a4a;--color-confidence-medium:#856404;--color-confidence-low:#721c24;--font-sans:system-ui,-apple-system,sans-serif;--font-mono:ui-monospace,monospace;--space-1:0.25rem;--space-2:0.5rem;--space-4:1rem;--space-8:2rem}*,:after,:before{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);line-height:1.6}.site-header{background:var(--color-accent);color:#fff;position:-webkit-sticky;position:sticky;top:0;z-index:100;border-bottom:1px solid rgba(0,0,0,.15)}.site-header__inner{max-width:720px;margin:0 auto;padding:0 1.25rem;display:flex;align-items:center;gap:1.5rem;height:3.25rem}.site-header__logo{font-size:1rem;font-weight:700;color:#fff;text-decoration:none;white-space:nowrap;letter-spacing:-.01em;flex-shrink:0}.site-header__logo:hover{opacity:.9}.site-header__nav ul{display:flex;list-style:none;margin:0;padding:0;gap:0;flex-wrap:wrap}.site-header__nav a{display:block;padding:0 .65rem;height:3.25rem;line-height:3.25rem;color:rgba(255,255,255,.8);text-decoration:none;font-size:.8rem;font-weight:500;white-space:nowrap;transition:color .15s,background .15s}.site-header__nav a:hover,.site-header__nav a[aria-current=page]{color:#fff;background:rgba(255,255,255,.12)}.site-footer{margin-top:4rem;border-top:1px solid var(--color-border);background:#f9fafb}.site-footer__inner{max-width:720px;margin:0 auto;padding:1.75rem 1.25rem;display:flex;flex-direction:column;gap:.75rem}.site-footer__nav ul{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0;gap:.25rem 0}.site-footer__nav li:not(:last-child):after{content:"·";padding:0 .5rem;color:var(--color-border)}.site-footer__nav a{color:var(--color-muted);text-decoration:none;font-size:.85rem}.site-footer__nav a:hover{color:var(--color-text)}.site-footer__copy{margin:0;font-size:.8rem;color:var(--color-muted)}