:root{--bg:#f5f7fb;--card:#fff;--text:#18202a;--muted:#6b7280;--line:#e4e7ec;--accent:#4f46e5;--good:#069669;--bad:#dc2626;--warn:#d97706}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
.shell{max-width:1080px;margin:auto;padding:24px}.header{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}
h1{font-size:26px;margin:0}.muted{color:var(--muted)}.badges{display:flex;gap:8px;flex-wrap:wrap}.pill{background:#fff;border:1px solid var(--line);padding:9px 13px;border-radius:999px;font-weight:800}
.layout{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 12px 32px rgba(0,0,0,.04)}
.center{text-align:center}.rowBtns,.controls,.timeBtns{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
button{border:0;border-radius:12px;padding:10px 14px;font-weight:800;cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}.secondary{background:#eef2ff;color:#3730a3}.primary{background:var(--accent);color:#fff}.active{background:var(--accent)!important;color:#fff!important}
.word{font-size:39px;font-weight:900;margin:7px 0}.canvasWrap{margin-top:14px;border:2px dashed #cbd5e1;border-radius:18px;overflow:hidden;background:#fff}
canvas{display:block;width:100%;height:auto;touch-action:none;cursor:crosshair}.controls{margin-top:12px}.status{margin-top:14px;padding:14px;border-radius:14px;background:#f8fafc;min-height:68px}.statusLine{font-size:21px;font-weight:900}.small{font-size:13px;color:var(--muted);margin-top:4px}
.good{color:var(--good)}.bad{color:var(--bad)}.warn{color:var(--warn)}.modelBox{padding:12px 14px;background:#f8fafc;border-radius:14px;margin-bottom:16px}
.pred{padding:10px 0;border-bottom:1px solid #eef0f3}.predRow{display:flex;justify-content:space-between;font-weight:700}.bar{height:8px;background:#eef2f7;border-radius:99px;overflow:hidden;margin-top:6px}.bar i{display:block;height:100%;background:#6366f1}
.answerBox{display:none;margin-top:14px;padding:15px;border:1px solid var(--line);border-radius:16px;background:#fff}.answerBox.show{display:block}.answerImg{width:200px;height:200px;object-fit:contain;margin:10px auto;display:block}.note{font-size:13px;line-height:1.5;color:var(--muted)}
.footer{text-align:center;margin-top:16px;font-size:12px;color:var(--muted)}
@media(max-width:800px){.layout{grid-template-columns:1fr}.header{align-items:flex-start;flex-direction:column}}