:root{--page: oklch(.973 .009 75);--raised: oklch(1 0 0);--sunken: oklch(.962 .006 60);--border: oklch(.917 .008 58);--strong: oklch(.196 .006 65);--ink-2: oklch(.485 .019 55);--muted: oklch(.572 .017 55);--brand-50: oklch(.972 .013 264);--brand-700: oklch(.556 .172 264);--brand-800: oklch(.462 .14 264);--accent: oklch(.515 .175 264);--amber-bg: oklch(.978 .03 85);--amber-ink: oklch(.52 .11 70);--nav-h: 64px;--gutter: 16px;--radius-card: 24px;--radius-ctl: 14px;--e1: 0 4px 8px oklch(.3 .02 60 / .04);--display: "Inter Tight", "Inter", ui-sans-serif, system-ui, sans-serif;--sans: "Inter", ui-sans-serif, system-ui, sans-serif;color-scheme:light}@media(min-width:640px){:root{--gutter: 24px}}:root[data-theme=dark]{--page: oklch(.152 .006 70);--raised: oklch(.246 .019 62);--sunken: oklch(.198 .018 62);--border: oklch(.33 .019 60);--strong: oklch(.962 .006 60);--ink-2: oklch(.76 .015 55);--muted: oklch(.702 .015 55);--brand-50: oklch(.7 .157 264 / .16);--accent: oklch(.8 .105 264);--amber-bg: oklch(.78 .15 78 / .16);--amber-ink: oklch(.84 .13 80);color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--strong);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--accent)}:focus-visible{outline:2px solid var(--brand-700);outline-offset:3px;border-radius:6px}.wrap{width:100%;max-width:760px;margin-inline:auto;padding-inline:var(--gutter)}.nav{position:sticky;top:0;z-index:10;padding-top:env(safe-area-inset-top,0px);background:color-mix(in oklab,var(--page) 88%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.nav-in{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:var(--nav-h)}.brand{display:flex;align-items:center;gap:9px;color:var(--strong);text-decoration:none;font-family:var(--display);font-weight:800;letter-spacing:-.02em;font-size:16px}.brand-dot{width:28px;height:28px;border-radius:9px;flex-shrink:0;background:linear-gradient(135deg,var(--brand-700),var(--brand-800));display:flex;align-items:center;justify-content:center}.nav-link{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:var(--radius-ctl);font-size:14.5px;font-weight:600;color:var(--ink-2);text-decoration:none}.nav-link:hover{color:var(--strong);background:var(--sunken)}main{padding-block:40px 72px}h1,h2,h3{font-family:var(--display);font-weight:800;margin:0;text-wrap:balance}h1{font-size:clamp(2rem,6vw,2.75rem);line-height:1.02;letter-spacing:-.035em}h2{font-size:1.35rem;line-height:1.15;letter-spacing:-.025em;margin-top:44px;scroll-margin-top:calc(var(--nav-h) + 16px)}h3{font-size:1.05rem;letter-spacing:-.015em;margin-top:24px}p,ul,ol{margin:12px 0 0}ul,ol{padding-left:1.25em}li+li{margin-top:6px}.lede{font-size:1.1rem;color:var(--ink-2);margin-top:14px;max-width:60ch}.dated{font-size:.875rem;color:var(--muted);margin-top:10px}.short{margin-top:28px;padding:20px 22px;border-radius:var(--radius-card);background:var(--raised);border:1px solid var(--border);box-shadow:var(--e1)}.short h2{margin-top:0;font-size:1.05rem}.short ul{margin-top:10px}.toc{margin-top:28px;font-size:.95rem}.toc ol{columns:2 16rem;column-gap:24px}table{width:100%;border-collapse:collapse;margin-top:14px;font-size:.95rem}th,td{text-align:left;vertical-align:top;padding:10px 12px 10px 0;border-bottom:1px solid var(--border)}th{font-weight:700;color:var(--ink-2);font-size:.8rem;letter-spacing:.04em;text-transform:uppercase}.table-scroll{overflow-x:auto}.callout{margin-top:16px;padding:14px 16px;border-radius:var(--radius-ctl);background:var(--brand-50);font-size:.95rem}.warn{background:var(--amber-bg)}mark.todo{background:var(--amber-bg);color:var(--amber-ink);font-weight:700;padding:0 4px;border-radius:4px}details{margin-top:12px;border:1px solid var(--border);border-radius:var(--radius-ctl);background:var(--raised);padding:0 16px}details[open]{padding-bottom:14px}summary{cursor:pointer;font-weight:700;min-height:52px;display:flex;align-items:center;list-style:none}summary::-webkit-details-marker{display:none}summary:after{content:"+";margin-left:auto;color:var(--muted);font-weight:600;font-size:1.2rem}details[open] summary:after{content:"−"}details p:first-of-type{margin-top:0}.contact{margin-top:20px;padding:22px;border-radius:var(--radius-card);background:var(--raised);border:1px solid var(--border);box-shadow:var(--e1)}.contact h2{margin-top:0}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;margin-top:14px;border-radius:var(--radius-ctl);background-image:linear-gradient(135deg,var(--brand-700),var(--brand-800));color:#fff;font-family:var(--display);font-weight:700;text-decoration:none}footer{border-top:1px solid var(--border);padding-block:28px 40px;font-size:.875rem;color:var(--muted)}footer p{margin:8px 0 0}footer a{color:var(--ink-2)}