:root{--bg: #0b1020;--card: #121938;--text: #e7ecff;--muted: #aeb7d6;--accent: #7aa2ff;--ok: #2ecc71;--bad: #e74c3c}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji"}.app{min-height:100dvh;display:grid;grid-template-rows:auto 1fr auto}.header,.footer{padding:12px 16px;background:#0c1430;border-bottom:1px solid #1f2a56}.footer{border-top:1px solid #1f2a56;border-bottom:none;text-align:center;opacity:.8}.brand{color:var(--text);text-decoration:none;font-weight:700}.main{padding:24px;display:grid;place-items:start center}.card{background:var(--card);width:min(900px,100%);padding:24px;border-radius:16px;box-shadow:0 10px 30px #0000004d}.card h1,.card h2{margin-top:0}.btn{background:var(--accent);color:#0b1020;border:none;border-radius:10px;padding:10px 14px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.ghost{background:transparent;color:var(--text);border:1px solid #33407a}.meta{color:var(--muted);font-size:.9rem}.prompt{font-size:1.1rem;margin:10px 0 16px}.choices{list-style:none;padding:0;display:grid;gap:10px}.choice{background:#141d44;border:1px solid #2a3570;border-radius:12px;padding:10px}.choice.selected{outline:2px solid var(--accent)}.choice label{display:grid;grid-template-columns:20px 1fr;gap:12px;align-items:start;cursor:pointer}.choice img{max-width:320px;border-radius:8px;display:block}.audio-label{margin-bottom:6px;color:var(--muted);font-size:.9rem}.actions{display:flex;gap:10px;align-items:center;margin-top:12px}.feedback{padding:8px 12px;border-radius:999px;font-weight:700}.feedback.ok{background:color-mix(in oklab,var(--ok),#000 75%);color:#d2f9e3}.feedback.bad{background:color-mix(in oklab,var(--bad),#000 75%);color:#ffd7d3}.error{border:1px solid #e74c3c}