:root{--paper:#f8f5ef;--ink:#5e0a16;--body:#39282c;--muted:#70585d;--line:#e4d5d4;--soft:#f1e4e3;--brand:#7c0f1f;--gold:#f5b93f;--radius:14px;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--body);font:16px/1.7 "Segoe UI",Arial,sans-serif}a{color:var(--brand);text-underline-offset:4px}button,a,summary{touch-action:manipulation}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #a46d08;outline-offset:4px}::selection{background:var(--gold);color:var(--ink)}[hidden]{display:none!important}.wrap{width:min(1180px,calc(100% - 80px));margin-inline:auto}.header{padding-block:24px;display:flex;gap:28px;justify-content:space-between;align-items:center;border-bottom:1px solid 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.square{background:var(--gold);border-color:var(--gold)}.record strong{font-size:14px;display:block}.record small{display:block;font-size:12px;color:var(--muted)}.demo-controls{background:#f7eeec;padding:28px;display:flex;flex-direction:column;justify-content:center;gap:15px}.demo-controls h3{font-size:20px}.demo-controls p{margin:0;font-size:14px}.demo-count{font-weight:700;font-variant-numeric:tabular-nums}progress{display:block;width:100%;height:9px;accent-color:var(--brand)}#demo-status{min-height:48px}#reset{border:0;background:none;text-decoration:underline;color:var(--brand);font-size:13px;min-height:44px;align-self:start;padding:0 4px}.demo-note{border-top:1px solid var(--line);padding:16px 24px;margin:0;color:var(--muted);font-size:12px}.split{display:grid;grid-template-columns:1fr 1.1fr;gap:90px}.tinted{background:var(--soft)}.steps{list-style:none;padding:0;margin:0}.steps li{display:flex;gap:22px;padding:0 0 25px;margin:0 0 25px;border-bottom:1px solid #d9c6c8}.steps 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