:root{--bg:#020617;--panel:#0f172a;--line:#334155;--text:#e2e8f0;--muted:#94a3b8;--accent:#fbbf24}
*{box-sizing:border-box}
html{color-scheme:dark;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.7 "Avenir Next",system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--accent);text-underline-offset:.2em}
a:hover{color:var(--text)}
:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
h1,h2,h3{line-height:1.2;text-wrap:balance}
p{text-wrap:pretty}
img{display:block;max-width:100%;height:auto}
code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
pre{max-width:100%;overflow:auto;padding:20px;border:1px solid var(--line);border-radius:5px;background:var(--panel);line-height:1.6}
pre code{font-size:14px}
.skip-link{position:absolute;top:-100px;left:20px;z-index:10;padding:10px 16px;background:var(--accent);color:var(--bg)}
.skip-link:focus{top:12px}
.site-header,.guide-shell,.site-footer{width:min(1360px,calc(100% - 64px));margin-inline:auto}
.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:80px;border-bottom:1px solid var(--line)}
.brand{font-size:24px;font-weight:600;color:var(--text);text-decoration:none}
.brand small{font-size:14px;font-weight:400;color:var(--muted);margin-left:10px}
.site-header nav{display:flex;flex-wrap:wrap;gap:24px;font-size:14px}
.site-header nav a{text-decoration:none}
.guide-shell{display:grid;grid-template-columns:215px minmax(0,1fr);gap:56px}
.sidebar{position:sticky;top:24px;align-self:start;max-height:calc(100dvh - 48px);overflow:auto;padding-block:36px}
.sidebar h2{font-size:14px;margin:0 0 16px}
.sidebar a,.mobile-nav nav a{display:block;padding:7px 10px;margin-block:3px;color:var(--muted);text-decoration:none;font-size:14px}
.sidebar a:hover,.mobile-nav nav a:hover{color:var(--accent)}
.sidebar a[aria-current],.mobile-nav nav a[aria-current]{color:var(--accent);border-left:2px solid var(--accent);background:var(--panel)}
.content{min-width:0;max-width:84ch;padding-block:36px 72px}
.breadcrumb{font-size:13px;color:var(--muted);margin-top:0}
.page-heading{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:34px}
.page-heading h1{font-size:clamp(34px,4vw,48px);font-weight:500;margin:16px 0}
.lead{font-size:18px;color:var(--muted);margin:0}
.markdown{max-width:78ch}
.markdown h2{font-size:27px;margin-block:42px 18px;scroll-margin-top:24px}
.markdown h2:first-child{margin-top:0}
.markdown h3{font-size:20px;margin-block:30px 14px;scroll-margin-top:24px}
.markdown p,.markdown li{color:var(--muted)}
.markdown strong{color:var(--text)}
.markdown ul,.markdown ol{padding-left:24px}
.markdown li{margin-block:7px}
.markdown p code,.markdown li code,.markdown td code{font-size:.88em;color:var(--accent);background:var(--panel);padding:2px 4px;border-radius:3px;overflow-wrap:anywhere}
.markdown table{display:block;max-width:100%;overflow:auto;border-collapse:collapse;border:1px solid var(--line);margin-block:24px}
.markdown th,.markdown td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}
.markdown th{background:var(--panel)}
.markdown blockquote{margin:24px 0;padding:2px 20px;border-left:3px solid var(--accent);background:var(--panel)}
.markdown img{border:1px solid var(--line);border-radius:6px;margin-block:24px}
.pagination{display:flex;justify-content:space-between;gap:24px;margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}
.pagination a{max-width:48%;text-decoration:none}
.pagination small{display:block;color:var(--muted)}
.pagination .next{margin-left:auto;text-align:right}
.site-footer{display:flex;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding-block:24px;font-size:13px;color:var(--muted)}
.site-footer p{margin:0}
.mobile-nav{display:none}
@media(max-width:850px){.guide-shell{display:block}.sidebar{display:none}.content{max-width:none}.mobile-nav{display:block;margin-bottom:24px;border:1px solid var(--line);border-radius:5px}.mobile-nav summary{padding:12px 16px;cursor:pointer;color:var(--accent)}.mobile-nav nav{padding:4px 12px 12px;max-height:60dvh;overflow:auto}}
@media(max-width:550px){.site-header,.guide-shell,.site-footer{width:calc(100% - 36px)}.site-header{flex-wrap:wrap;gap:16px;padding-block:18px}.site-header nav{gap:20px}.brand small{margin-left:6px}.content{padding-top:24px}.markdown h2{font-size:24px}.markdown pre{padding:16px}.site-footer{flex-direction:column;gap:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}