:root{color-scheme:dark;--bg:#0b1014;--line:#29343c;--text:#edf3f4;--muted:#99aab4;--accent:#a4f276}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 80% 0%,#1d3427,transparent 40%),var(--bg);color:var(--text);font-family:Segoe UI,system-ui,sans-serif}header{max-width:1240px;margin:auto;padding:28px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{color:var(--text);text-decoration:none;font-weight:700}.brand b{color:var(--accent);font-size:26px;margin-right:14px}.badge{border:1px solid var(--line);border-radius:30px;padding:8px 12px;font-size:10px;letter-spacing:1px;color:var(--muted)}main{max-width:1240px;margin:auto;padding:0 32px}.intro{padding:60px 0 42px;max-width:750px}.eyebrow{font-size:11px;color:var(--accent);letter-spacing:2px;font-weight:700}h1{font-size:clamp(44px,7vw,80px);line-height:1.03;letter-spacing:-4px;margin:20px 0}h1 span{color:var(--accent)}.lead{color:var(--muted);max-width:560px;line-height:1.7}.runtime{font-size:12px;color:var(--accent);margin-top:24px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}article{padding:25px;border:1px solid var(--line);background:linear-gradient(145deg,#182229,#141c22);border-radius:18px;min-width:0;display:flex;flex-direction:column;align-items:flex-start}.wide{grid-column:span 2}.meta{width:100%;display:flex;justify-content:space-between;gap:8px;align-items:center;color:var(--muted);font-size:10px;letter-spacing:1px}.meta span{border:1px solid var(--line);border-radius:30px;font-size:9px;padding:5px 8px;letter-spacing:0;text-align:center}h2{font-size:23px;letter-spacing:-.5px;margin:24px 0 8px}article>p{font-size:13px;line-height:1.6;color:var(--muted);margin:0 0 20px}.big{font-size:48px;font-weight:600;color:var(--accent);margin:auto 0 20px;min-height:58px}button{background:var(--accent);color:#14220f;border:1px solid transparent;border-radius:10px;padding:11px 16px;font:600 12px Segoe UI,system-ui;cursor:pointer;transition:background .15s,transform .15s}button:hover{background:#baff94;transform:translateY(-1px)}button:active{transform:translateY(1px)}button.secondary{color:var(--text);background:#26323a;border-color:#36454f}button.secondary:hover{background:#35444e}button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}label{font-size:11px;color:var(--muted);margin-bottom:7px}input{width:100%;background:#0e151a;border:1px solid #35414a;border-radius:10px;padding:12px;color:var(--text);font:14px Segoe UI,system-ui;margin-bottom:12px}.result{font-size:12px;line-height:1.6;color:var(--accent);margin-top:16px;min-height:38px;overflow-wrap:anywhere}.numbers{display:grid;grid-template-columns:1fr 1fr;gap:16px;width:100%;margin:7px 0 24px}.numbers>div:last-child{grid-column:span 2}.numbers code{display:block;font-size:11px;color:var(--muted);margin-bottom:10px;overflow-wrap:anywhere}.numbers output{font-size:24px;color:var(--accent);overflow-wrap:anywhere}.preview{border:1px dashed #42574a;border-radius:10px;padding:18px;width:100%;margin-bottom:20px;font-size:13px;min-height:92px}.preview p{color:var(--muted);margin:8px 0 0;font-size:12px}footer{display:flex;justify-content:space-between;gap:16px;color:var(--muted);font-size:11px;padding:32px 0 40px}@media(max-width:950px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.wide{grid-column:span 1}.numbers{grid-template-columns:1fr}.numbers>div:last-child{grid-column:auto}}@media(max-width:580px){header{padding:20px}.badge{font-size:8px}main{padding:0 20px}.intro{padding:40px 0 32px}h1{letter-spacing:-2px}.grid{grid-template-columns:1fr}article{padding:22px}footer{flex-direction:column}}