:root{--primary: #6C63FF;--primary-dim: rgba(108, 99, 255, .2);--secondary: #FF6584;--secondary-dim: rgba(255, 101, 132, .15);--accent: #43C6AC;--accent-dim: rgba(67, 198, 172, .15);--dark: #1a1a2e;--darker: #16213e;--card: #0f3460;--card-hover: #133a72;--text: #e0e0e0;--muted: #8892a4;--border: rgba(108, 99, 255, .25);--border-subtle: rgba(255, 255, 255, .07);--green: #00e676;--green-dim: rgba(0, 230, 118, .12);--orange: #FF9800;--orange-dim: rgba(255, 152, 0, .12);--red: #FF5252;--red-dim: rgba(255, 82, 82, .12);--gold: #FFD700;--radius: 14px;--radius-sm: 8px;--radius-lg: 20px;--shadow: 0 4px 24px rgba(0, 0, 0, .4)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;overflow-x:hidden}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--dark);color:var(--text);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;overflow-x:hidden}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3{line-height:1.2;font-weight:700}.gradient-text{background:linear-gradient(135deg,#fff 0%,var(--primary) 60%,var(--secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.muted{color:var(--muted)}.small{font-size:.85rem}.xs{font-size:.78rem}.page{min-height:100vh;display:flex;flex-direction:column;background:var(--dark)}.container{max-width:640px;margin:0 auto;padding:0 20px;width:100%}.container-wide{max-width:960px;margin:0 auto;padding:0 20px;width:100%}.center{display:flex;align-items:center;justify-content:center}.col{display:flex;flex-direction:column}.row{display:flex;align-items:center}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-20{gap:20px}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.card-sm{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px}.glass{background:#0f346099;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-sm);padding:12px 24px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .18s 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var(--secondary)}.btn-outline-secondary:hover:not(:disabled){background:#ff658440}.btn-outline-accent{background:var(--accent-dim);color:var(--accent);border:1px solid var(--accent)}.btn-outline-accent:hover:not(:disabled){background:#43c6ac40}.btn-sm{padding:8px 16px;font-size:.85rem}.btn-lg{padding:16px 32px;font-size:1.05rem}.input{width:100%;background:#ffffff12;border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-sm);padding:12px 16px;color:#f1f5f9;font-size:.95rem;font-family:inherit;outline:none;transition:border-color .2s,background .2s}.input::placeholder{color:#475569}.input:focus{border-color:var(--primary);background:#6c63ff1f}textarea.input{resize:none;line-height:1.5}.badge{display:inline-flex;align-items:center;gap:4px;border-radius:20px;padding:4px 12px;font-size:.78rem;font-weight:600}.badge-primary{background:var(--primary-dim);border:1px solid var(--border);color:var(--primary)}.badge-accent{background:var(--accent-dim);border:1px solid rgba(67,198,172,.3);color:var(--accent)}.badge-orange{background:var(--orange-dim);border:1px solid rgba(255,152,0,.3);color:var(--orange)}.badge-green{background:var(--green-dim);border:1px solid rgba(0,230,118,.3);color:var(--green)}.divider{height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);margin:24px 0}.score-delta{font-size:1.4rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-header{padding:24px 0 8px;font-size:.75rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.8px}.choice-option{width:100%;background:#ffffff0a;border:1px solid var(--border-subtle);border-radius:var(--radius-sm);padding:14px 16px;color:var(--text);font-size:.92rem;font-family:inherit;cursor:pointer;text-align:left;transition:all .15s ease}.choice-option:hover{border-color:var(--primary);background:var(--primary-dim);color:#fff}.choice-option.selected{border-color:var(--primary);background:var(--primary-dim);color:#fff;font-weight:600}.choice-option.correct{border-color:var(--green);background:var(--green-dim);color:var(--green)}.choice-option.wrong{border-color:var(--red);background:var(--red-dim);color:var(--red)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.grid-auto{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}.timer-normal{stroke:var(--primary)}.timer-warn{stroke:var(--orange)}.timer-danger{stroke:var(--red)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}@keyframes fadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes popIn{0%{transform:scale(.85);opacity:0}70%{transform:scale(1.05)}to{transform:scale(1);opacity:1}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.anim-fade-up,.anim-pop{opacity:1}.anim-pulse{animation:pulse 1.5s ease infinite}.anim-spin{animation:spin .8s linear infinite}@media (prefers-reduced-motion: no-preference){.anim-fade-up{animation:fadeInUp .35s ease forwards}.anim-pop{animation:popIn .4s cubic-bezier(.34,1.56,.64,1) forwards}}@media (max-width: 480px){.grid-2{grid-template-columns:1fr}}