:root{--bg: #f6f7f9;--card: #ffffff;--ink: #1c1e21;--muted: #6b7280;--accent: #2563eb;--danger: #dc2626;--good: #16a34a;--line: #e5e7eb}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5}main{max-width:820px;margin:40px auto;padding:24px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:28px;box-shadow:0 2px 8px #0000000f}h1{font-size:1.6rem;margin:0 0 6px}h2{margin:0 0 8px}h3{font-size:1.1rem;line-height:1.45}.muted{color:var(--muted);font-size:.9rem}.field{margin:18px 0;display:block}label{font-weight:600}.row{display:flex;align-items:center;gap:8px}.option{display:flex;align-items:flex-start;gap:10px;padding:9px 4px;border-radius:8px;cursor:pointer}.option:hover{background:#f0f2f5}.option input[type=radio],.option input[type=checkbox]{margin-top:1px}.grow{flex:1}.idx{width:26px;font-weight:700;color:var(--muted)}button{font:inherit;padding:8px 18px;border-radius:8px;border:1px solid var(--line);background:#fff;cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button.primary{background:var(--accent);color:#fff;border:none}.nav{display:flex;gap:12px;margin-top:22px;justify-content:flex-end}.progress{font-weight:600;color:var(--muted);font-size:.9rem;margin-bottom:12px}.review{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:24px}.weak-areas{margin:12px 0 20px}.weak-bar{display:flex;align-items:center;gap:10px;margin:6px 0}.weak-bar .bar{flex:1;height:10px;background:var(--line);border-radius:5px;overflow:hidden}.weak-bar .bar>div{background:var(--danger);height:100%}.missed-list{margin-top:8px}.match-options{padding:6px 0 4px;border-top:1px solid var(--line)}.missed-item{border:1px solid var(--line);border-radius:8px;padding:12px;margin:10px 0}.missed-item p{margin:4px 0}.explanation{color:#334155;font-size:.95rem}.perfect{color:var(--good);font-weight:600}