:root{--accent:#171714;--accent2:#3f3f3b;--ink:#1d2421;--muted:#5d6861;--border:#dee5dd;--paper:#f6f7f3;--surface:#fff}*{box-sizing:border-box}body{background:var(--paper);margin:0;color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.55}.demo-wrap{max-width:990px;margin:0 auto;padding:28px 22px 66px}.demo-top{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:35px}.demo-top a{color:var(--accent);font-weight:700;text-decoration:none}.demo-tag{display:inline-block;border-radius:99px;padding:6px 12px;font-size:11px;font-weight:800;letter-spacing:.08em;background:#ecf0eb;color:var(--accent)}h1{font-size:clamp(30px,5vw,48px);max-width:790px;line-height:1.12;letter-spacing:-.045em;margin:17px 0 12px}h2{font-size:clamp(23px,3vw,30px);line-height:1.2;margin:8px 0 14px}.lede{font-size:17px;max-width:730px;color:var(--muted)}.warning{font-size:12px;color:#756143;background:#fff8e8;border:1px solid #eee0bd;border-radius:9px;padding:11px 13px;margin:20px 0}.demo-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(200px,1fr);gap:20px;margin-top:22px}.demo-panel,.demo-side{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:24px;min-width:0}.progress-line{font-size:12px;color:var(--muted);font-weight:700;margin-bottom:9px}.progress-track{height:5px;background:#e5ebe4;border-radius:9px;overflow:hidden}.progress-fill{height:100%;width:33.33%;background:var(--accent);transition:width .15s}.demo-slide[hidden]{display:none}.demo-slide{padding-top:17px}.step-label{font-size:11px;font-weight:800;text-transform:uppercase;color:var(--accent2);letter-spacing:.1em}.demo-slide>p{color:var(--muted);margin:0 0 20px}.demo-pairs{display:grid;gap:10px;margin:0}.demo-pair{border:1px solid var(--border);border-radius:12px;padding:12px 14px}.demo-pair dt{font-size:11px;font-weight:750;color:var(--accent2);letter-spacing:.02em}.demo-pair dd{margin:5px 0 0;font-size:14px}.demo-nav{display:flex;gap:9px;margin-top:23px;justify-content:flex-end;align-items:center}.demo-nav button{border:0;background:var(--accent);color:white;border-radius:9px;padding:12px 19px;cursor:pointer;font:inherit;font-weight:750;min-height:44px}.demo-nav button.secondary{background:#e8eee8;color:var(--ink)}.demo-nav button:disabled{opacity:.4;cursor:default}.demo-side h3{font-size:17px;margin:0 0 9px}.demo-side p{color:var(--muted);font-size:13px}.sample-notes{background:#f1f5ef;padding:13px;border-radius:10px;font-size:13px;white-space:pre-wrap}.cta-zone{margin-top:25px;padding:23px;background:var(--surface);border:1px solid var(--border);border-radius:18px}.cta-zone h2{font-size:24px}.cta-options{display:flex;gap:9px;flex-wrap:wrap;margin-top:14px}.cta-options a{display:inline-block;background:var(--accent);color:white;padding:13px 18px;text-decoration:none;border-radius:10px;font-weight:750;min-height:46px}.cta-options a.secondary{background:#e8eee8;color:var(--ink)}.fine{font-size:12px;color:var(--muted);margin:13px 0 0}a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media(max-width:760px){.demo-wrap{padding:18px 14px 40px}.demo-grid{grid-template-columns:1fr}.demo-panel,.demo-side{padding:17px}.demo-top{margin-bottom:20px}.cta-options a{width:100%;text-align:center}.demo-nav button{flex:1}}