:root{color-scheme:light dark;--bg:#fff;--ink:#171717;--muted:#646464;--line:#e8e8e8;--hover:#f5f5f5}
*{box-sizing:border-box}html{scroll-padding-top:32px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-text-size-adjust:100%}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:4px}a:focus-visible,summary:focus-visible{outline:2px solid currentColor;outline-offset:5px}
header{max-width:1184px;margin:auto;padding:28px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}header>a:last-child{font-size:13px;color:var(--muted)}.brand{font-size:22px;font-weight:650;letter-spacing:-.8px}.brand span{font-size:12px;font-weight:400;letter-spacing:0;margin-left:18px;color:var(--muted)}
.doc-title{max-width:1184px;margin:auto;padding:64px 32px 40px}.doc-title:after{content:"";display:block;max-width:1024px;border-bottom:1px solid var(--line);margin-top:40px}.eyebrow{font-size:13px;font-weight:500;margin:0 0 16px;color:var(--muted)}h1{font-size:36px;line-height:1.25;letter-spacing:-1.2px;margin:0 0 16px;font-weight:600}.intro{font-size:18px;line-height:1.8;color:var(--muted);margin:0;max-width:620px}
.layout{max-width:1184px;margin:auto;display:grid;grid-template-columns:208px minmax(0,680px);gap:64px;padding:8px 32px 80px}.contents{align-self:start;position:sticky;top:32px;max-height:calc(100dvh - 64px);overflow:auto}.contents summary{font-size:13px;font-weight:600;list-style:none;margin-bottom:16px;pointer-events:none}.contents summary::-webkit-details-marker{display:none}nav{display:flex;flex-direction:column;gap:4px;font-size:13px;line-height:1.6;color:var(--muted)}nav a{padding:8px 10px;margin-left:-10px;border-radius:6px}nav a:hover{background:var(--hover);color:var(--ink);text-decoration:none}
main{min-width:0}section{border-bottom:1px solid var(--line);padding:32px 0 20px}section:first-child{padding-top:0}h2{font-size:21px;line-height:1.4;letter-spacing:-.5px;margin:0 0 14px;font-weight:600}h3{font-size:16px;font-weight:600;margin:24px 0 10px}p{margin:0 0 16px;color:var(--muted)}strong{color:var(--ink);font-weight:500}section a{text-decoration:underline;text-underline-offset:4px}footer{font-size:12px;color:var(--muted);padding-top:28px}.skip{position:absolute;left:16px;top:-100px;padding:8px;background:var(--bg)}.skip:focus{top:8px}
@media(prefers-color-scheme:dark){:root{--bg:#151515;--ink:#f0f0f0;--muted:#a0a0a0;--line:#333;--hover:#242424}}
@media(max-width:800px){header{padding:22px 24px}.brand span{display:none}.doc-title{padding:40px 24px 28px}.doc-title:after{margin-top:28px}.layout{grid-template-columns:1fr;gap:28px;padding:0 24px 48px}.contents{position:static;max-height:none;padding-bottom:20px;border-bottom:1px solid var(--line)}.contents summary{pointer-events:auto;cursor:pointer;margin-bottom:12px;display:flex;justify-content:space-between}.contents summary:after{content:"−"}.contents:not([open]) summary:after{content:"+"}.contents nav{display:grid;grid-template-columns:1fr 1fr;gap:4px 14px}h1{font-size:30px}.intro{font-size:16px}section{padding-top:28px}h2{font-size:20px}}