:root{--bg: #0d1017;--bg-soft: #131826;--card: #171d2b;--card-edge: #242e45;--text: #e7ecf5;--text-dim: #8b95ab;--accent: #f0a63c;--blue: #4f8ef7;--good: #34d178;--bad: #ef5f6b}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:radial-gradient(1200px 600px at 70% -10%,#16203a 0%,transparent 60%),var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;min-height:100vh}#app{max-width:1020px;margin:0 auto;padding:24px 20px 64px}.screen{animation:fade-in .25s ease}@keyframes fade-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}h1{font-size:2.4rem;letter-spacing:-.02em;margin:.4em 0 .15em}h2{font-size:.82rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin:0 0 10px}button{font:inherit;color:var(--text);background:var(--card);border:1px solid var(--card-edge);border-radius:12px;padding:9px 18px;cursor:pointer;transition:border-color 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var(--card-edge);border-radius:12px;padding:12px 16px;font-size:.92rem;color:var(--text-dim);max-width:260px;text-align:left;display:flex;gap:10px;align-items:baseline}.step em{color:var(--text);font-style:normal;font-weight:600}.step-n{flex:none;width:22px;height:22px;border-radius:50%;background:var(--card-edge);color:var(--text);font-size:.8rem;font-weight:700;display:inline-flex;align-items:center;justify-content:center;transform:translateY(3px)}.start-buttons{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;margin:10px 0 22px;align-items:flex-start}.start-choice{display:flex;flex-direction:column;gap:6px;align-items:center}.sub{color:var(--text-dim);font-size:.82rem}.best{color:var(--text-dim)}.best strong{color:var(--accent)}.disclaimer{color:var(--text-dim);font-size:.8rem;max-width:560px;margin:18px auto 0}.q-header{margin-bottom:18px}.progress{height:6px;border-radius:3px;background:var(--bg-soft);overflow:hidden;margin-bottom:10px}.progress-fill{height:100%;border-radius:3px;background:linear-gradient(90deg,var(--blue),var(--accent));transition:width .3s ease}.q-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:.88rem;color:var(--text-dim)}.counter{font-weight:700;color:var(--text)}.chip{background:var(--bg-soft);border:1px solid var(--card-edge);border-radius:20px;padding:2px 12px}.chip.strong{color:var(--text);border-color:var(--blue)}.diff{color:var(--accent);letter-spacing:2px}.streak{color:var(--accent)}.spacer{flex:1}.timer{font-variant-numeric:tabular-nums}.panels{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}.panel{background:var(--card);border:1px solid var(--card-edge);border-radius:16px;padding:14px 18px;flex:1 1 320px;max-width:480px;min-height:280px;display:flex;flex-direction:column}.ref-body,.target-body{flex:1;display:flex;align-items:center;justify-content:center;gap:8px}.arrow{font-size:1.8rem;color:var(--accent)}.prompt{text-align:center;color:var(--text-dim);margin:18px 0 12px}.options{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}@media(max-width:900px){.options{grid-template-columns:repeat(2,minmax(0,1fr))}}.option{position:relative;padding:10px;border-radius:16px;background:var(--card)}.option img{display:block;width:100%;height:auto}.option:hover:not(:disabled){transform:translateY(-3px);border-color:var(--blue)}.opt-tag{position:absolute;top:8px;left:10px;font-size:.8rem;font-weight:700;color:var(--text-dim)}.option.picked{border-color:var(--blue);box-shadow:0 0 0 2px var(--blue)}.option.correct{border-color:var(--good);box-shadow:0 0 0 2px var(--good)}.option.wrong{border-color:var(--bad);box-shadow:0 0 0 2px var(--bad)}.hint{text-align:center;color:var(--text-dim);font-size:.84rem;margin-top:16px}.hint em{color:var(--accent);font-style:normal}.feedback{margin-top:18px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px}.feedback.hidden{display:none}.fb-msg{font-size:1.05rem;font-weight:600}.fb-msg.good{color:var(--good)}.fb-msg.bad{color:var(--bad)}.fb-replay{background:var(--card);border:1px solid var(--card-edge);border-radius:16px;padding:8px}.results{text-align:center}.score-row{display:flex;gap:30px;align-items:center;justify-content:center;flex-wrap:wrap;margin:20px 0}.dial-wrap{position:relative;width:150px;height:150px}.dial{width:100%;height:100%}.dial-track,.dial-fill{fill:none;stroke-width:10;stroke-linecap:round}.dial-track{stroke:var(--bg-soft)}.dial-fill{stroke:var(--blue);transition:stroke-dashoffset .8s 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auto;font-size:.9rem}.item-strip{display:flex;gap:7px;justify-content:center;margin:16px 0;flex-wrap:wrap}.dot{width:14px;height:14px;border-radius:50%;cursor:help}.dot-good{background:var(--good)}.dot-bad{background:var(--bad)}.history{max-width:440px;margin:24px auto 0;font-size:.86rem;color:var(--text-dim)}.history h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}.hist-row{display:flex;justify-content:space-between;gap:12px;padding:4px 0;border-bottom:1px solid var(--card-edge)}.live-view{border-radius:12px}