:root{--ink: #1b1d22;--paper: #f6f4ef;--muted: #5d6068;--accent: #3d5afe;--line: #d9d5cc;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--ink: #ecebe6;--paper: #15171b;--muted: #a3a6ad;--accent: #8c9eff;--line: #2c2f36}}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.55 system-ui,-apple-system,Segoe UI,sans-serif}header,main,footer{max-width:880px;margin:0 auto;padding:0 16px}.hero{padding-top:72px;padding-bottom:40px}.mark{margin:0;color:var(--accent);font-weight:700;letter-spacing:.08em}h1{margin:8px 0 16px;font-size:clamp(2rem,6vw,3.4rem);line-height:1.1}.lead{max-width:40rem;color:var(--muted);font-size:1.15rem}section{padding:32px 0;border-top:1px solid var(--line)}h2{margin:0 0 16px;font-size:1.4rem}.ops{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:8px}.ops li{display:flex;gap:16px;align-items:baseline}.ops code{min-width:7rem;color:var(--accent);font-weight:600}.features{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.features h3{margin:0 0 6px;font-size:1.05rem}.features p{margin:0;color:var(--muted)}pre{margin:0;padding:16px;overflow-x:auto;border:1px solid var(--line);border-radius:8px;font:14px/1.6 ui-monospace,SF Mono,Menlo,monospace}footer{padding-top:24px;padding-bottom:48px;color:var(--muted);font-size:.9rem;border-top:1px solid var(--line)}footer a{color:var(--accent)}