@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{color:#0f172a;background-color:#f8fafc;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:radial-gradient(circle at 20% 20%,#e0f2fe 0,#0000 25%),radial-gradient(circle at 80% 0,#fce7f3 0,#0000 25%),radial-gradient(circle at 50% 80%,#dcfce7 0,#0000 25%),#f8fafc;min-height:100vh;margin:0}a{color:inherit;text-decoration:none}button{font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:24px}.card{background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:24px;box-shadow:0 12px 30px #0f172a14}.grid{gap:16px;display:grid}.grid-cols-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.btn{cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:12px 16px;font-weight:600;transition:all .15s ease-in-out;display:inline-flex}.btn-primary{color:#fff;background:linear-gradient(135deg,#2563eb,#4f46e5);box-shadow:0 10px 20px #4f46e540}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 24px #4f46e54d}.btn-secondary{color:#0f172a;background:#f1f5f9;border:1px solid #e2e8f0}.btn-secondary:hover{background:#e2e8f0}.tag{color:#1d4ed8;background:#eff6ff;border-radius:999px;align-items:center;gap:6px;padding:6px 10px;font-size:14px;font-weight:600;display:inline-flex}.badge{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:10px 12px}.progress{background:#e2e8f0;border-radius:999px;width:100%;height:10px;overflow:hidden}.progress-fill{background:linear-gradient(135deg,#22c55e,#16a34a);height:100%}.question-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:16px}.option{cursor:pointer;border:1px solid #e2e8f0;border-radius:12px;align-items:center;gap:10px;padding:12px 14px;transition:all .12s;display:flex}.option:hover{border-color:#cbd5e1}.option.correct{background:#ecfdf3;border-color:#22c55e}.option.wrong{background:#fef2f2;border-color:#ef4444}.option.selected{background:#eef2ff;border-color:#6366f1}.option.selected.correct{background:#ecfdf3;border-color:#22c55e}.option.selected.wrong{background:#fef2f2;border-color:#ef4444}.result-card{gap:12px;display:grid}.timer{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;align-items:center;gap:8px;padding:6px 10px;display:inline-flex}.timer.critical{color:#ef4444;background:#fef2f2;border-color:#ef4444;font-weight:700;animation:1s infinite pulse-red}@keyframes pulse-red{0%{opacity:1;box-shadow:0 0 #ef4444b3}50%{opacity:.7}to{opacity:1;box-shadow:0 0 0 8px #ef444400}}.language-btn{cursor:pointer;background:#fff;border:2px solid #e2e8f0;border-radius:12px;justify-content:center;align-items:center;width:44px;height:44px;padding:0;transition:all .2s;display:inline-flex}.language-btn:hover{border-color:#cbd5e1;transform:translateY(-1px);box-shadow:0 4px 8px #0000001a}.language-btn.active{background:#eef2ff;border-color:#6366f1;box-shadow:0 4px 12px #6366f133}