:root{color-scheme:dark;--bg:#07131d;--panel:#0c1f2d;--text:#eaf7ff;--muted:#abc3d1;--accent:#79dced;--line:#284c60}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--text);background:radial-gradient(circle at 15% 0%,#173f55 0,transparent 36rem),var(--bg);font:16px/1.75 system-ui,-apple-system,"Segoe UI",sans-serif}header,main,footer{width:min(960px,calc(100% - 32px));margin-inline:auto}header{padding:64px 0 24px}.eyebrow{color:var(--accent);font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase}h1{font-size:clamp(2.1rem,6vw,3.8rem);line-height:1.12;letter-spacing:-.035em;margin:12px 0}h2{font-size:1.45rem;color:#b8f5ff;margin:0 0 14px}h3{font-size:1.08rem;margin:26px 0 8px}.subtitle,footer{color:var(--muted)}nav{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}nav a,.action{padding:9px 14px;border:1px solid var(--line);border-radius:10px;background:#123348}a{color:var(--accent);overflow-wrap:anywhere}a:hover{color:#fff}a:focus-visible{outline:2px solid #ffd98a;outline-offset:4px}section,.summary{padding:clamp(20px,4vw,34px);margin-bottom:20px;border:1px solid var(--line);border-radius:18px;background:var(--panel)}p{margin:10px 0}ul,ol{padding-left:1.4rem}li+li{margin-top:10px}.note{border-left:3px solid #ffd98a;padding-left:16px;color:#ffe7b4}.action{display:inline-block;margin:12px 0}code{overflow-wrap:anywhere;font-size:.9em}footer{padding:16px 0 44px;font-size:.88rem;text-align:center}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}