:root{color-scheme:light;--ink:#202733;--muted:#596373;--line:#dce1e8;--accent:#113566;--paper:#fafaf8}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:1.5rem}body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif;font-size:17px;line-height:1.95}a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid #2b6fd6;outline-offset:5px}.skip{position:absolute;top:-100px;padding:8px;background:white}.skip:focus{top:0;z-index:10}header,footer,main{max-width:1020px;margin-inline:auto;padding-inline:28px}header{display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:88px;border-bottom:1px solid var(--line)}header nav,footer nav{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:14px}.brand{font-size:20px;font-weight:750;text-decoration:none;white-space:nowrap}.brand span{font:600 10px ui-monospace,monospace;letter-spacing:.08em;border:1px solid var(--line);padding:3px 5px;margin-left:5px}main{max-width:820px;padding-top:62px;padding-bottom:64px}h1{font-size:clamp(2rem,4vw,3.2rem);line-height:1.45;letter-spacing:-.025em;text-wrap:balance;max-width:22ch;margin:14px 0 24px}h2{font-size:clamp(1.25rem,2vw,1.65rem);line-height:1.65;margin:0 0 16px;text-wrap:balance}p{margin:0 0 18px}.eyebrow{font-size:13px;color:var(--muted);letter-spacing:.03em}.intro{font-size:1.17rem;line-height:1.95;color:var(--muted)}.byline,.muted,figcaption{font-size:13px;color:var(--muted)}section{margin-top:46px}ol,ul{padding-left:26px}li{padding-left:4px;margin-bottom:12px}pre{max-width:100%;overflow:auto;padding:22px;background:#eef1f5;border:1px solid var(--line);border-radius:6px;font-size:13px;line-height:1.8;tab-size:2}code{font-family:ui-monospace,Consolas,monospace}.contents{padding:22px 26px;border-block:1px solid var(--line);margin:30px 0 40px;font-size:15px}.contents p{font-weight:650}.contents ol{margin-bottom:0}.contents li{margin-bottom:5px}figure{margin:32px 0;border:1px solid var(--line);padding:24px;background:#fff}figure img{display:block;width:245px;max-width:100%;height:auto}figcaption{margin-top:14px}.guide-list>article{display:grid;grid-template-columns:40px 1fr;gap:18px;padding:30px 0;border-bottom:1px solid var(--line)}.guide-list h2{font-size:1.35rem;margin-bottom:10px}.guide-list p{margin:0;color:var(--muted);font-size:15px}.number{font:13px ui-monospace,monospace;color:var(--muted);padding-top:12px}aside{margin-top:42px;padding:26px;background:#edf1f7;border-left:3px solid var(--accent)}.button{display:inline-block;padding:10px 18px;background:var(--accent);color:white;text-decoration:none;border-radius:5px;font-weight:650;font-size:15px}.button:hover{background:#1c477d}footer{border-top:1px solid var(--line);padding-block:30px 42px;font-size:13px;color:var(--muted)}footer p{margin-bottom:12px}footer nav{margin-bottom:16px}a{overflow-wrap:anywhere}@media(max-width:600px){header,footer,main{padding-inline:20px}header{align-items:flex-start;flex-direction:column;justify-content:center;padding-block:18px;gap:10px}header nav{gap:8px 18px}main{padding-top:36px}.guide-list>article{grid-template-columns:28px 1fr;gap:12px}h1{max-width:none}pre{padding:15px;font-size:12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}