:root{color-scheme:light;--bg: #f6fbff;--bg2: #fff7fb;--card: #ffffff;--card2: rgba(255, 255, 255, .85);--text: #15223a;--muted: rgba(21, 34, 58, .7);--primary: #7c5cff;--primary2: #22c55e;--good: #16a34a;--warn: #f59e0b;--bad: #ef4444;--border: rgba(21, 34, 58, .12);--shadow: 0 18px 60px rgba(21, 34, 58, .12);--shadow2: 0 10px 30px rgba(21, 34, 58, .1);--ring: 0 0 0 4px rgba(124, 92, 255, .18)}*{box-sizing:border-box}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial;background:radial-gradient(900px 500px at 15% 0%,rgba(124,92,255,.16),transparent 55%),radial-gradient(900px 500px at 85% 0%,rgba(34,211,238,.14),transparent 55%),radial-gradient(900px 520px at 50% 120%,rgba(34,197,94,.12),transparent 55%),linear-gradient(180deg,var(--bg),var(--bg2));color:var(--text)}.app{min-height:100vh}.topbar{position:sticky;top:0;z-index:10;display:flex;gap:16px;align-items:center;justify-content:space-between;padding:14px 18px;background:#ffffffd1;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:10px;min-width:220px}.brandMark{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,#7c5cff,#22c55e);box-shadow:0 12px 28px #7c5cff2e,0 12px 28px #22c55e1f}.brandTitle{font-weight:900;letter-spacing:.2px;line-height:1.05}.brandSub{color:var(--muted);font-size:12px;line-height:1.1}.tabs{display:flex;gap:10px}.tab{text-decoration:none;color:var(--muted);padding:10px 12px;border-radius:999px;border:1px solid var(--border);background:#ffffffb3;font-weight:700;letter-spacing:.2px;transition:transform .12s ease,background .12s ease,border-color .12s ease}.tab:hover{transform:translateY(-1px);border-color:#ffffff2e}.tab.active{color:var(--text);border-color:#7c5cff59;background:linear-gradient(180deg,#7c5cff1a,#ffffffe6)}.controls{display:flex;gap:10px;align-items:center}.control{display:flex;gap:8px;align-items:center;font-size:14px;color:var(--muted)}.control select{border:1px solid var(--border);border-radius:12px;padding:8px 10px;background:#fff;color:#0b1220;outline:none}.control select:focus{box-shadow:var(--ring)}.control option{color:#0b1220}.select{border:1px solid var(--border);border-radius:14px;padding:11px 12px;background:#fff;color:#0b1220;font-weight:800}.select:focus{outline:none;box-shadow:var(--ring)}.content{padding:18px;max-width:1060px;margin:0 auto}.page{display:grid;gap:14px}.h1{margin:0 0 6px;font-size:32px;letter-spacing:-.2px}.h2{margin:12px 0 6px;font-size:20px}.muted{color:var(--muted);font-size:14px}.pageHeader{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.chips{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.chip{border:1px solid var(--border);background:#ffffffb8;color:#15223ae6;border-radius:999px;padding:8px 10px;font-size:12px;font-weight:800;letter-spacing:.2px;text-transform:uppercase}.chip.easy{border-color:#22d3ee59}.chip.medium{border-color:#7c5cff73}.chip.hard{border-color:#fbbf248c}.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:12px;border:1px solid var(--border);background:#ffffffd1;border-radius:18px;box-shadow:var(--shadow2)}.spacer{flex:1}.progress{display:flex;gap:10px;align-items:baseline;padding:8px 10px;border:1px solid var(--border);background:#ffffffb8;border-radius:14px}.progressLabel{color:var(--muted);font-size:12px}.progressValue{font-weight:900}.btn{border:1px solid var(--border);background:#ffffffd1;color:var(--text);border-radius:14px;padding:11px 14px;font-weight:800;cursor:pointer;transition:transform .12s ease,border-color .12s ease,background .12s ease}.btn:hover{transform:translateY(-1px);border-color:#15223a38}.btn.primary{background:linear-gradient(135deg,#7c5cff,#22c55e);border-color:transparent;color:#fff;box-shadow:0 16px 40px #7c5cff33,0 16px 40px #22c55e24}.btn:focus{outline:none;box-shadow:var(--ring)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.empty{margin-top:18px;border:1px dashed var(--border);border-radius:18px;padding:16px;background:#fffc}.empty .title{font-weight:800;margin-bottom:4px}.heroCard{display:grid;grid-template-columns:1.1fr .9fr;gap:14px;padding:18px;border-radius:22px;border:1px solid var(--border);background:linear-gradient(180deg,#ffffffeb,#ffffffb3);box-shadow:var(--shadow);overflow:hidden;position:relative}.heroCard:before{content:"";position:absolute;inset:-60px -80px auto auto;width:260px;height:260px;background:radial-gradient(circle at 30% 30%,rgba(34,197,94,.28),transparent 55%),radial-gradient(circle at 70% 70%,rgba(124,92,255,.3),transparent 55%);filter:blur(6px);opacity:.9}.heroLeft{position:relative;display:grid;gap:10px}.heroKicker{font-weight:900;letter-spacing:.18em;text-transform:uppercase;font-size:12px;color:#15223aa6}.heroTitle{font-size:40px;line-height:1.05;letter-spacing:-.5px;font-weight:950}.heroActions{display:flex;gap:10px;align-items:center;margin-top:6px}.heroRight{position:relative;display:grid;gap:10px;align-content:start}.stat{border:1px solid var(--border);background:#fffc;border-radius:18px;padding:14px}.statNum{font-weight:950;font-size:26px;letter-spacing:-.3px}.statLabel{color:var(--muted);font-weight:700;font-size:13px}.split{display:grid;grid-template-columns:1.1fr .9fr;gap:14px}.panel{border:1px solid var(--border);border-radius:22px;padding:16px;background:#ffffffe0;box-shadow:var(--shadow2)}.panelHeader{display:flex;align-items:center;justify-content:space-between;gap:10px}.pill{border:1px solid var(--border);background:#ffffffb8;border-radius:999px;padding:7px 10px;font-size:12px;color:#15223ac7;font-weight:800;text-transform:uppercase;letter-spacing:.12em}.storyText{font-size:18px;line-height:1.7;color:#15223aeb}.para{margin:0 0 10px}.para:last-child{margin-bottom:0}.qList{margin-top:14px;display:grid;gap:10px}.qCard{border:1px solid var(--border);border-radius:18px;padding:12px;background:#ffffffeb}.qPrompt{font-weight:800;margin-bottom:8px}.options{display:grid;gap:8px}.option{display:flex;gap:10px;align-items:center;padding:10px;border:1px solid var(--border);border-radius:14px;background:#ffffffeb;cursor:pointer;transition:transform .12s ease,border-color .12s ease,background .12s ease}.option:hover{transform:translateY(-1px);border-color:#15223a38;background:#7c5cff0f}.option input{accent-color:rgba(124,92,255,1)}.option.correct{border-color:#16a34a8c;background:#16a34a1a}.option.wrong{border-color:#ef44448c;background:#ef444414}.feedback{margin-top:10px;font-weight:900;letter-spacing:.2px}.feedback.good{color:#16a34af2}.feedback.bad{color:#ef4444f2}.hint{margin-top:10px;border:1px solid var(--border);background:#22d3ee1a;border-radius:14px;padding:10px 12px;color:#15223ae6;line-height:1.5}.submitRow{margin-top:14px;display:grid;gap:10px}.profileRow{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;text-align:left;padding:12px;border-radius:18px;border:1px solid var(--border);background:#ffffffe6;color:var(--text);cursor:pointer;font-weight:900}.profileRow:hover{transform:translateY(-1px);border-color:#15223a38;background:#7c5cff0f}.profileRow.active{border-color:#7c5cff8c;background:linear-gradient(180deg,#7c5cff1a,#ffffffeb)}.profileName{font-size:16px;letter-spacing:-.2px}.stats{margin-top:14px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.review{display:grid;gap:12px}.rewardRow{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.gameTop{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}.gameCanvas{width:100%;border-radius:18px;border:1px solid var(--border);background:#fffc}.note{border:1px solid var(--border);background:#ffffffe0;border-radius:18px;padding:12px 14px;box-shadow:var(--shadow2);font-weight:800;color:#15223aeb}.settingsRow{display:flex;gap:10px;align-items:center;margin-top:12px}.label{font-weight:900}.badge{border-radius:999px;padding:8px 10px;font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase;border:1px solid var(--border);background:#ffffffd1;color:#15223ae0}.badge.good{border-color:#16a34a59}.badge.warn{border-color:#f59e0b66}.input{flex:1;border:1px solid var(--border);border-radius:14px;padding:11px 12px;background:#ffffffeb;color:var(--text);outline:none}.input:focus{box-shadow:var(--ring)}.textarea{width:100%;margin-top:12px;border:1px solid var(--border);border-radius:14px;padding:12px;background:#ffffffeb;color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial;font-weight:700;line-height:1.4;resize:vertical;outline:none}.textarea:focus{box-shadow:var(--ring)}.fineprint{margin-top:10px;opacity:.85}@media (max-width: 900px){.brandSub{display:none}.brand{min-width:unset}.heroCard,.split{grid-template-columns:1fr}.heroTitle{font-size:34px}}