:root{color-scheme:dark;--bg:#0b1220;--panel:#141f31;--line:#29374d;--text:#eef4ff;--muted:#9eacc2;--accent:#69a7ff}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#101b2d,#0b1220 340px);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.shell{width:min(760px,100%);margin:auto;padding:26px 16px 48px}.top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin:4px 0 22px}.eyebrow{font-size:10px;letter-spacing:.16em;color:var(--accent);font-weight:700;margin:0 0 8px}h1{font-size:30px;margin:0}h2{font-size:17px;margin:0 0 16px}.sub{color:var(--muted);font-size:13px;margin:8px 0 0}.status{border:1px solid var(--line);border-radius:30px;padding:7px 11px;font-size:11px;color:var(--muted);white-space:nowrap}.panel{background:#141f31;border:1px solid var(--line);border-radius:18px;padding:19px;margin:14px 0}.fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}label{display:block;color:var(--muted);font-size:12px;font-weight:600}select{display:block;width:100%;margin-top:7px;padding:12px;border-radius:10px;border:1px solid var(--line);background:#0c1626;color:var(--text);font-size:15px}.toggle{display:flex;align-items:flex-start;gap:9px;margin:17px 0 8px;line-height:1.5}.toggle input{margin-top:3px;accent-color:var(--accent)}.hint,.muted{font-size:11px;color:var(--muted);line-height:1.6}.primary{width:100%;border:0;border-radius:12px;background:var(--accent);color:#071426;font-weight:800;font-size:16px;padding:15px;margin-top:12px}.primary:disabled{opacity:.5}.message{font-size:12px;color:var(--muted);min-height:18px;margin:12px 0 0}.message.error{color:#ff9b9b}.section-head{display:flex;justify-content:space-between;gap:8px;align-items:center}canvas{width:100%;height:180px;margin:4px 0 10px;background:#0c1626;border-radius:10px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.stat{background:#0c1626;border-radius:10px;padding:10px}.stat small{display:block;color:var(--muted);font-size:10px}.stat strong{font-size:14px}.result{white-space:pre-wrap;line-height:1.75;font-size:13px;color:#dce7f7}hr{border:0;border-top:1px solid var(--line);margin:18px 0}footer{color:var(--muted);font-size:11px;line-height:1.7;padding:8px 4px}a{color:var(--accent)}[hidden]{display:none!important}@media(max-width:420px){.shell{padding:20px 12px 36px}.panel{padding:15px}.top{align-items:center}h1{font-size:26px}.fields{grid-template-columns:1fr}}