:root{color-scheme:dark;--bg:#171d26;--panel:#202936;--line:#344357;--text:#e9eef5;--muted:#aebbcf;--accent:#bed2ef}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 Arial,sans-serif}.bar{max-width:1200px;margin:auto;display:flex;gap:28px;align-items:center;justify-content:space-between;padding:26px 32px;border-bottom:1px solid var(--line)}.brand{font-weight:800;letter-spacing:.06em;text-decoration:none;font-size:17px}a{color:var(--accent);text-underline-offset:5px}nav{display:flex;gap:24px;flex-wrap:wrap}main{max-width:1120px;margin:auto;padding:0 32px}.hero{padding:80px 0 60px;max-width:900px}.eyebrow{font-size:12px;font-weight:bold;letter-spacing:.15em;color:var(--accent);margin:0 0 16px}h1{font-size:clamp(36px,5.5vw,66px);line-height:1.1;letter-spacing:-.03em;margin:0 0 26px}h1 span{color:var(--accent)}h2{font-size:clamp(26px,3vw,38px);line-height:1.2;letter-spacing:-.02em;margin:0 0 20px}h3{font-size:19px;line-height:1.4;margin:12px 0}p{margin:0 0 18px}.lead{max-width:720px;font-size:20px;color:var(--muted)}.muted{color:var(--muted);font-size:14px}.section{padding:52px 0;border-top:1px solid var(--line)}.heading{max-width:790px;margin-bottom:28px}.primary,button{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:12px 18px;font:inherit;cursor:pointer;text-decoration:none;display:inline-block}.primary{background:var(--accent);color:#152236;font-weight:700;border-color:var(--accent);margin-bottom:14px}button:hover{border-color:var(--accent)}button[aria-pressed=true]{background:var(--accent);color:#152236}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.cards article,.demo,.result{background:var(--panel);border:1px solid var(--line);padding:25px;border-radius:12px}.cards article>span{color:var(--accent);font-size:13px}.cards p{font-size:15px;color:var(--muted);margin:0}.demo{margin:24px 0}.demo-controls,.playback,.actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}canvas{display:block;width:100%;height:auto;margin:20px 0;border-radius:7px;background:#101722}.playback input{flex:1;min-width:100px}.playback output{min-width:60px}.demo>.muted{margin:14px 0 0}.fields{display:grid;grid-template-columns:1fr 1fr;gap:20px}label{display:flex;flex-direction:column;gap:9px;font-size:14px;font-weight:700}input,textarea,select{font:inherit;color:var(--text);background:#111a25;border:1px solid var(--line);border-radius:7px;padding:12px;max-width:100%}textarea{resize:vertical;width:100%;line-height:1.55;font-weight:400}textarea::placeholder{color:#7f92ab}select{min-height:49px;width:100%}form>.primary{margin-top:24px}.result{margin-top:20px}.result>label{margin-bottom:10px}.advice{padding-left:22px;color:var(--accent);font-size:14px}.advice:empty{display:none}.result [role=status]{min-height:1.5em;margin:12px 0 0;color:var(--accent)}.note{border-left:3px solid var(--accent);padding:16px 20px;margin-top:24px;color:var(--muted);background:#1c2532}.sources a{display:block;margin:14px 0}.sources>.muted{margin-top:24px}footer{color:var(--muted);font-size:14px;flex-wrap:wrap}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #e8b56e;outline-offset:4px}@media(max-width:700px){.bar{padding:20px;align-items:flex-start;flex-direction:column;gap:14px}nav{gap:16px;font-size:14px}main{padding:0 20px}.hero{padding-top:48px}.cards,.fields{grid-template-columns:1fr}.demo,.result,.cards article{padding:18px}.demo-controls button{flex:1;font-size:14px}.section{padding:36px 0}.lead{font-size:18px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}