@charset "UTF-8";:root{--f1: #48cbe2;--f2: #1b7fb0;--f3: #0e4e72;--f4: #0a3450;--accent: #d9862a;--bg: #ebeff2;--sheet: #ffffff;--sheet-2: #f5f8fa;--ink: #0e1a21;--muted: #5f717c;--rule: #d0d9de;--rule-soft: #e2e9ed;--grid: rgba(14, 78, 114, .1);--shadow: 0 1px 2px rgba(14, 26, 33, .05), 0 8px 24px -14px rgba(14, 26, 33, .28);--accent-soft: rgba(217, 134, 42, .12);--f1-soft: rgba(72, 203, 226, .12);--btn-fg: #f5fbfd;--header-bg: rgba(235, 239, 242, .78);--step--1: .78rem;--step-0: 1rem;--step-1: 1.22rem;--step-2: 1.6rem;--step-3: 2.2rem;--step-4: 3.1rem;--step-5: 4.4rem;--font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;--font-body: "Newsreader", Georgia, "Times New Roman", serif;--font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--maxw: 1180px;--radius: 2px;--radius-lg: 4px;--header-h: 66px;--gutter: clamp(18px, 4vw, 44px);color-scheme:light dark}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--f1: #5fdcf0;--f2: #2a9bce;--f3: #186a96;--f4: #124b6e;--accent: #f0a93b;--bg: #0a1014;--sheet: #121a20;--sheet-2: #0f171c;--ink: #e3ebef;--muted: #849aa6;--rule: #213039;--rule-soft: #1a272f;--grid: rgba(95, 220, 240, .1);--shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px -16px rgba(0, 0, 0, .75);--accent-soft: rgba(240, 169, 59, .14);--f1-soft: rgba(95, 220, 240, .12);--btn-fg: #f5fbfd;--header-bg: rgba(10, 16, 20, .72);color-scheme:dark}}:root[data-theme=dark]{--f1: #5fdcf0;--f2: #2a9bce;--f3: #186a96;--f4: #124b6e;--accent: #f0a93b;--bg: #0a1014;--sheet: #121a20;--sheet-2: #0f171c;--ink: #e3ebef;--muted: #849aa6;--rule: #213039;--rule-soft: #1a272f;--grid: rgba(95, 220, 240, .1);--shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px -16px rgba(0, 0, 0, .75);--accent-soft: rgba(240, 169, 59, .14);--f1-soft: rgba(95, 220, 240, .12);--btn-fg: #f5fbfd;--header-bg: rgba(10, 16, 20, .72);color-scheme:dark}:root[data-theme=light]{color-scheme:light}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{margin:0;min-height:100dvh;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:var(--step-0);line-height:1.62;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.1;margin:0;text-wrap:balance}p{margin:0}a{color:inherit;text-decoration:none}img,svg{display:block;max-width:100%}::selection{background:var(--accent-soft)}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:1px}.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}.section{margin-top:clamp(52px,7vw,92px)}.label{font-family:var(--font-mono);font-size:.68rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}.mono{font-family:var(--font-mono)}.prose{max-width:62ch;color:var(--muted);font-size:var(--step-1);line-height:1.6}.prose strong{color:var(--ink);font-weight:500}.rule{height:1px;background:var(--rule);border:0;margin:0}.section-head{display:flex;align-items:baseline;gap:16px;margin-bottom:26px}.section-head h2{font-size:var(--step-2);letter-spacing:-.015em;white-space:nowrap}.section-head .rule{flex:1}.iso{background-image:repeating-linear-gradient(30deg,var(--grid) 0 .6px,transparent .6px 20px),repeating-linear-gradient(-30deg,var(--grid) 0 .6px,transparent .6px 20px),repeating-linear-gradient(90deg,var(--grid) 0 .6px,transparent .6px 20px)}.sheet{background:var(--sheet);border:1px solid var(--rule);border-radius:var(--radius);box-shadow:var(--shadow)}.btn,.btn-ghost,.btn-accent{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-mono);font-size:.72rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;padding:11px 18px;border-radius:var(--radius);border:1px solid transparent;cursor:pointer;transition:transform .12s ease,background .15s ease,border-color .15s ease,color .15s ease}.btn:active,.btn-ghost:active,.btn-accent:active{transform:translateY(1px)}.btn{background:var(--f3);color:var(--btn-fg);border-color:var(--f3)}.btn:hover{background:var(--f2);border-color:var(--f2)}.btn-ghost{background:transparent;color:var(--ink);border-color:var(--rule)}.btn-ghost:hover{border-color:var(--f2);color:var(--f2)}.btn-accent{background:transparent;color:var(--accent);border-color:var(--accent)}.btn-accent:hover{background:var(--accent-soft)}.chip{display:inline-flex;align-items:center;gap:7px;font-family:var(--font-mono);font-size:.64rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);border:1px solid var(--rule-soft);border-radius:999px;padding:4px 11px}.tags{display:flex;flex-wrap:wrap;gap:7px;list-style:none;margin:0;padding:0}.tags li{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.06em;color:var(--muted);border:1px solid var(--rule-soft);border-radius:var(--radius);padding:3px 9px}.skip-link{position:fixed;top:10px;left:10px;z-index:200;transform:translateY(-160%);background:var(--sheet);border:1px solid var(--accent);color:var(--ink);padding:9px 14px;border-radius:var(--radius);font-family:var(--font-mono);font-size:.72rem}.skip-link:focus{transform:translateY(0)}