:root{--bg:#faf9f7;--bg-alt:#f2f0ed;--surface:#ffffff;--surface2:#f0ebe4;--border:rgba(0,194,184,.12);--border2:rgba(0,194,184,.2);--text:#242220;--muted:#7a6e68;--dim:#8a7165;--sky:#00C2B8;--sky-dark:#1f7a57;--font:"Inter",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;--mono:"JetBrains Mono","SF Mono",Consolas,monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:var(--sky-dark);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px}a:hover{color:var(--text)}main{max-width:820px;margin:64px auto 0;padding:32px 32px 80px}.nav-back{font-family:var(--mono);font-size:.82rem;color:var(--muted);text-decoration:none}.eyebrow{font-family:var(--mono);font-size:.74rem;font-weight:700;letter-spacing:.14em;color:var(--sky-dark);text-transform:uppercase;margin:18px 0 14px}h1{font-size:clamp(2.2rem,4vw,3rem);font-weight:800;letter-spacing:-.025em;line-height:1.1;margin-bottom:18px}.lede{font-size:1.2rem;color:var(--muted);font-weight:500;line-height:1.55;margin-bottom:32px}article h2{font-size:1.5rem;font-weight:800;letter-spacing:-.02em;margin:42px 0 14px}article p{margin-bottom:14px}article ul{padding-left:24px;margin-bottom:18px}article li{margin-bottom:6px}article strong{font-weight:700;color:var(--text)}article code{font-family:var(--mono);font-size:.88em;background:var(--surface2);padding:1px 6px;border-radius:4px;color:var(--sky-dark)}.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 8px}.location-receipt-figure{margin:36px 0;display:flex;flex-direction:column;align-items:center;gap:12px;padding:24px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.location-receipt-figure :global(.receipt-card){max-width:360px}.location-receipt-figure figcaption{font-family:var(--mono);font-size:.8rem;color:var(--muted);text-align:center;max-width:600px;line-height:1.5}.cta-primary{display:inline-flex;align-items:center;gap:6px;background:var(--text);color:var(--bg);padding:10px 18px;border-radius:8px;font-size:.92rem;font-weight:700;text-decoration:none}.cta-ghost{display:inline-flex;align-items:center;gap:6px;color:var(--sky-dark);padding:10px 18px;border:1px solid var(--border2);border-radius:8px;font-size:.92rem;font-weight:600;text-decoration:none}.ref-impl-box{margin:18px 0 26px;padding:20px 24px;background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--sky);border-radius:0 10px 10px 0}.ref-impl-box .rib-tag{font-family:var(--mono);font-size:.7rem;font-weight:700;letter-spacing:.1em;color:var(--sky-dark);text-transform:uppercase;margin-bottom:6px}dl.field-table{display:grid;grid-template-columns:max-content 1fr;gap:8px 18px;margin:14px 0 22px;font-size:.92rem;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:18px 22px}dl.field-table dt{font-family:var(--mono);font-weight:700;color:var(--text)}dl.field-table dd{color:var(--muted)}.sample-card{margin:18px 0 26px;padding:20px 24px;background:var(--surface);border:1px solid var(--border);border-radius:12px;display:flex;flex-wrap:wrap;align-items:center;gap:18px;justify-content:space-between}.sample-card-meta{flex:1 1 280px}.sample-card-meta strong{display:block;font-size:1rem;color:var(--text);margin-bottom:2px}.sample-card-meta span{font-size:.86rem;color:var(--muted);line-height:1.5}.proves-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin:14px 0 22px}.proves-card{padding:18px 20px;border:1px solid var(--border);border-radius:10px;background:var(--surface)}.proves-card.no{background:var(--surface2)}.proves-card h3{font-size:.98rem;margin:0 0 10px}.proves-card.yes h3{color:var(--sky-dark)}.proves-card.no h3{color:var(--muted)}.proves-card ul{list-style:none;padding:0;margin:0;font-size:.88rem;line-height:1.55}.proves-card li{padding:4px 0;display:flex;gap:10px;align-items:flex-start}.proves-card.yes li:before{content:"✓";color:var(--sky-dark);font-weight:700;flex-shrink:0}.proves-card.no li:before{content:"✗";color:var(--muted);font-weight:700;flex-shrink:0}.proves-card.no li{color:var(--muted)}