*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:#f5f5f5;color:#1a1a1a;
  min-height:100vh;padding:20px 16px 40px;
}
.q-wrap{max-width:600px;margin:0 auto}
.q-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.q-num{font-size:13px;color:#666}
.q-score-lbl{font-size:13px;color:#666}
.q-score-val{font-weight:700;color:#1a1a1a}
.q-progress{height:5px;background:#ddd;border-radius:3px;margin-bottom:20px;overflow:hidden}
.q-progress-fill{height:100%;background:#3a7bd5;border-radius:3px;transition:width .3s}
.q-card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:20px;margin-bottom:12px}
.cat-tag{display:inline-block;font-size:11px;font-weight:600;padding:2px 8px;border-radius:4px;background:#f0f2f7;color:#5a6a8a;margin-bottom:10px;letter-spacing:.04em;text-transform:uppercase}
.q-text{font-size:17px;font-weight:600;margin-bottom:18px;line-height:1.4;color:#1a1a1a}
.q-opts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.q-opt{background:#f8f9fb;border:1.5px solid #e5e7eb;border-radius:8px;padding:11px 13px;font-size:14px;color:#1a1a1a;cursor:pointer;text-align:left;transition:all .15s;line-height:1.4;font-family:inherit}
.q-opt:hover{background:#e8f0fe;border-color:#3a7bd5;color:#1e3a7a}
.q-opt.correct{background:#e8f5ec;border-color:#1a7a3c;color:#1a7a3c;pointer-events:none;font-weight:700}
.q-opt.wrong{background:#fde8e8;border-color:#cc3333;color:#cc3333;pointer-events:none}
.q-opt.disabled{pointer-events:none;opacity:.55}
.q-feedback{font-size:13px;margin-top:10px;min-height:18px;line-height:1.4}
.q-feedback.ok{color:#1a7a3c;font-weight:600}
.q-feedback.no{color:#cc3333}
.q-next{width:100%;padding:13px;background:#3a7bd5;color:#fff;border:none;border-radius:8px;font-size:15px;font-weight:700;cursor:pointer;font-family:inherit;transition:.15s}
.q-next:hover{background:#2563c7}
.q-next:active{transform:scale(.98)}

/* RESULT */
.q-result{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:32px 24px;text-align:center}
.q-result-score{font-size:56px;font-weight:900;color:#1a1a1a;margin:6px 0}
.q-result-pct{font-size:15px;color:#666;margin-bottom:8px}
.q-result-grade{font-size:20px;font-weight:700;margin-bottom:24px}
.q-cats-title{font-size:13px;color:#666;text-align:left;margin-bottom:10px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.q-cats{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:24px;text-align:left}
.q-cat{background:#f8f9fb;border-radius:8px;padding:10px 12px}
.q-cat-name{font-size:12px;color:#666;margin-bottom:3px}
.q-cat-val{font-size:14px;font-weight:700;color:#1a1a1a}
.q-replay{width:100%;padding:13px;background:#1a1a1a;color:#fff;border:none;border-radius:8px;font-size:15px;font-weight:700;cursor:pointer;font-family:inherit;transition:.15s}
.q-replay:hover{background:#333}

@media(max-width:480px){
  .q-opts{grid-template-columns:1fr}
  .q-cats{grid-template-columns:1fr}
}