:root{
  --bg:#f4f7fb;--card:#ffffff;--ink:#172033;--muted:#65738a;--primary:#2454a6;--primary2:#153b75;--ok:#15803d;--bad:#b42318;--line:#d9e2ef;--soft:#eaf1fb;
}
*{box-sizing:border-box} body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:linear-gradient(135deg,#edf4ff,#f8fbff);color:var(--ink)}
button,input,select,textarea{font:inherit}.shell{max-width:1120px;margin:0 auto;padding:24px}.card{background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:24px;box-shadow:0 18px 45px rgba(23,32,51,.08);padding:26px}.hero{min-height:100vh;display:grid;place-items:center;padding:24px}.hero .card{max-width:820px}.eyebrow{letter-spacing:.16em;text-transform:uppercase;color:var(--primary);font-weight:800;font-size:.82rem}.title{font-size:clamp(2rem,5vw,4.4rem);line-height:.98;margin:10px 0 14px}.subtitle{font-size:1.08rem;color:var(--muted);line-height:1.5}.grid{display:grid;gap:18px}.two{grid-template-columns:1fr 1fr}.section-grid{grid-template-columns:minmax(280px,.92fr) 1.08fr}.options{display:grid;gap:10px;margin:18px 0}.option{border:1px solid var(--line);border-radius:16px;padding:14px;background:#fff;cursor:pointer;display:flex;gap:10px;align-items:flex-start}.option:hover{border-color:var(--primary);background:var(--soft)}.option.selected{outline:3px solid rgba(36,84,166,.18);border-color:var(--primary)}.btn{border:0;border-radius:999px;padding:13px 20px;background:var(--primary);color:#fff;font-weight:800;cursor:pointer}.btn:hover{background:var(--primary2)}.btn.secondary{background:#e8eef8;color:var(--primary2)}.btn.ghost{background:transparent;color:var(--primary);border:1px solid var(--line)}.btn:disabled{opacity:.45;cursor:not-allowed}.topbar{position:sticky;top:0;z-index:5;background:rgba(244,247,251,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.topbar-inner{max-width:1120px;margin:0 auto;padding:12px 24px;display:flex;gap:14px;align-items:center;justify-content:space-between}.pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-weight:800;color:var(--primary2)}.progress{height:10px;background:#dce6f3;border-radius:999px;overflow:hidden;min-width:170px}.bar{height:100%;width:0;background:var(--primary);transition:.25s}.reading-text{max-height:68vh;overflow:auto;line-height:1.65;color:#24314a;padding-right:8px}.q-title{font-size:1.35rem;margin:0 0 8px}.small{font-size:.92rem;color:var(--muted)}.input{width:100%;border:1px solid var(--line);border-radius:14px;padding:13px;background:#fff}.textarea{min-height:110px;resize:vertical}.footer-nav{display:flex;justify-content:space-between;gap:10px;margin-top:22px}.audio-box{background:var(--soft);border:1px solid var(--line);border-radius:18px;padding:16px;margin:14px 0}.audio-box audio{width:100%}.badge{display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;background:var(--soft);color:var(--primary2);font-weight:800;font-size:.85rem}.result-grid{grid-template-columns:repeat(4,1fr)}.score-card{text-align:center;border:1px solid var(--line);border-radius:18px;padding:16px;background:#fff}.score-num{font-size:2rem;font-weight:900;color:var(--primary)}.review-item{border:1px solid var(--line);border-radius:16px;padding:14px;margin:12px 0;background:#fff}.correct{border-color:rgba(21,128,61,.35);background:#f0fdf4}.incorrect{border-color:rgba(180,35,24,.35);background:#fff5f5}.ok{color:var(--ok);font-weight:900}.bad{color:var(--bad);font-weight:900}.wordbox{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.word{background:#eef4ff;border:1px solid #cdddf6;border-radius:999px;padding:7px 10px;font-weight:700}.dialogue{background:#f8fafc;border:1px dashed #cbd5e1;border-radius:16px;padding:14px;line-height:1.8}.print-only{display:none}@media(max-width:850px){.two,.section-grid,.result-grid{grid-template-columns:1fr}.topbar-inner{flex-wrap:wrap}.reading-text{max-height:none}.shell{padding:14px}.card{padding:18px}.footer-nav{position:sticky;bottom:0;background:rgba(244,247,251,.9);padding:10px;border-radius:18px}}@media print{.topbar,.footer-nav,.btn,.hero{display:none}.print-only{display:block}.card{box-shadow:none}.shell{max-width:none}}