:root{--paper: #ffffff;--surface: #f9fafb;--surface-alt: #f3f4f6;--line: #e5e7eb;--line-strong: #d1d5db;--ink: #111827;--ink-2: #374151;--ink-3: #6b7280;--accent: #1d4ed8;--accent-muted: #eff6ff;--accent-focus: #1e40af;--sq-neg-100: #9e3410;--sq-neg-75: #c85a33;--sq-neg-50: #e48d6c;--sq-neg-25: #f0c2ae;--sq-zero: #e8e9eb;--sq-pos-25: #b3d8ce;--sq-pos-50: #6db5a2;--sq-pos-75: #2e8f78;--sq-pos-100: #006b52;--zone-z1: #006b52;--zone-z2: #2e8f78;--zone-z3: #9aa0a8;--zone-z4: #d69e1f;--zone-z5: #d9712b;--zone-z6: #9e3410;--zone-z7: #111827;--font-sans: -apple-system, BlinkMacSystemFont, "Inter", system-ui, -apple-system, sans-serif;--font-serif: "Source Serif 4", Georgia, Cambria, serif;--font-mono: ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;--text-display: clamp(2.5rem, 1rem + 5vw, 4rem);--text-h1: clamp(2rem, 1rem + 3vw, 3rem);--text-h2: clamp(1.5rem, .8rem + 2vw, 2.25rem);--text-h3: 1.35rem;--text-body: 1.0625rem;--text-small: .875rem;--text-caption: .8125rem;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-6: 1.5rem;--space-8: 2rem;--space-12: 3rem;--space-16: 4rem;--radius-sm: 3px;--radius-md: 6px;--radius-lg: 8px}*,*:before,*:after{box-sizing:border-box}html{font-family:var(--font-sans);background-color:var(--paper);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;padding:0;min-height:100vh;display:flex;flex-direction:column}a{color:var(--accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:var(--accent-focus)}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.skip-link{position:absolute;top:-100px;left:1rem;background:var(--paper);color:var(--ink);padding:.5rem 1rem;border:2px solid var(--accent);border-radius:var(--radius-sm);z-index:9999;text-decoration:none;font-weight:500}.skip-link:focus{top:1rem}.badge-tier{display:inline-flex;align-items:center;gap:.35rem;padding:.15rem .5rem;font-size:var(--text-caption);font-family:var(--font-mono);font-weight:600;border-radius:var(--radius-sm);border:1px solid var(--line-strong);background:var(--surface);color:var(--ink-2)}.badge-tier.e0{border-color:#94a3b8;color:#475569}.badge-tier.e1{border-color:#60a5fa;color:#1d4ed8}.badge-tier.e2{border-color:#34d399;color:#065f46}.badge-tier.e3{border-color:#10b981;color:#047857;background:#ecfdf5}.academic-callout{border-left:3px solid var(--accent);background:var(--surface);padding:1rem 1.25rem;margin:1.5rem 0;border-radius:0 var(--radius-md) var(--radius-md) 0}.academic-callout.warning{border-left-color:var(--zone-z5)}.academic-callout.info{border-left-color:var(--accent)}.container{width:100%;max-width:1080px;margin:0 auto;padding:0 1.5rem}.container-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 1.5rem}.container-prose{width:100%;max-width:760px;margin:0 auto;padding:0 1.5rem}.site-header[data-astro-cid-kzcwegrn]{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:100;box-shadow:0 1px 2px #00000005}.header-inner[data-astro-cid-kzcwegrn]{display:flex;align-items:center;justify-content:space-between;height:3.75rem}.brand-link[data-astro-cid-kzcwegrn]{display:flex;align-items:center;gap:.5rem;text-decoration:none;color:var(--ink)}.brand-title[data-astro-cid-kzcwegrn]{font-size:1.15rem;font-weight:600;letter-spacing:-.01em}.brand-code[data-astro-cid-kzcwegrn]{font-size:.75rem;font-family:var(--font-mono);color:var(--ink-3);background:var(--surface);padding:.15rem .4rem;border-radius:var(--radius-sm);border:1px solid var(--line)}.primary-nav[data-astro-cid-kzcwegrn]{display:flex}.nav-list[data-astro-cid-kzcwegrn]{display:flex;list-style:none;margin:0;padding:0;gap:1.5rem}.nav-list[data-astro-cid-kzcwegrn] a[data-astro-cid-kzcwegrn]{text-decoration:none;color:var(--ink-2);font-size:.9375rem;font-weight:500;padding:.25rem 0;transition:color .15s ease}.nav-list[data-astro-cid-kzcwegrn] a[data-astro-cid-kzcwegrn]:hover{color:var(--ink)}.nav-list[data-astro-cid-kzcwegrn] a[data-astro-cid-kzcwegrn].active{color:var(--accent);border-bottom:2px solid var(--accent)}.github-link[data-astro-cid-kzcwegrn]{font-size:.875rem;color:var(--ink-2);text-decoration:none;padding:.35rem .75rem;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface)}.github-link[data-astro-cid-kzcwegrn]:hover{background:var(--surface-alt);color:var(--ink)}.site-main[data-astro-cid-kzcwegrn]{flex:1}.site-footer[data-astro-cid-kzcwegrn]{border-top:1px solid var(--line);background:var(--surface);padding:3rem 0 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a[data-astro-cid-kzcwegrn]:hover{color:var(--ink);text-decoration:underline}.evidence-tag[data-astro-cid-kzcwegrn]{display:inline-block;font-size:var(--text-caption);color:var(--ink-3);font-family:var(--font-mono)}.footer-bottom[data-astro-cid-kzcwegrn]{border-top:1px solid var(--line);padding-top:1.5rem;color:var(--ink-3);font-size:var(--text-caption)}