@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-tertiary:#1a1a25;--accent-primary:#e94560;--accent-secondary:#ff6b6b;--accent-gradient:linear-gradient(135deg, #e94560 0%, #ff6b6b 100%);--accent-success:#00d9a5;--accent-warning:#ffc107;--accent-info:#4a90a4;--glass-bg:#ffffff0d;--glass-border:#ffffff1a;--glass-shadow:0 8px 32px #0006;--glass-blur:20px;--text-primary:#fff;--text-secondary:#ffffffb3;--text-muted:#ffffff80;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--transition-fast:.15s ease;--transition-base:.2s ease;--transition-slow:.3s ease;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%}body{background:var(--bg-primary);color:var(--text-primary);line-height:1.6}.glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);border-radius:var(--radius-lg)}.glass-elevated{-webkit-backdrop-filter:blur(30px);border-radius:var(--radius-xl);background:#ffffff14;border:1px solid #ffffff26;box-shadow:0 12px 48px #00000080}.btn{border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);border:none;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:1rem;font-weight:600;text-decoration:none;display:inline-flex}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:0 4px 20px #e945604d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px #e9456080}.btn-secondary{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);color:var(--text-primary)}.btn-secondary:hover{border-color:var(--accent-primary);background:#ffffff1a}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover{color:var(--text-primary);background:#ffffff0d}.btn-large{border-radius:var(--radius-lg);padding:16px 48px;font-size:1.25rem}.btn-small{padding:8px 16px;font-size:.875rem}.btn-icon{border-radius:var(--radius-md);padding:10px}.input{width:100%;color:var(--text-primary);border:1px solid var(--glass-border);border-radius:var(--radius-md);transition:all var(--transition-base);background:#ffffff0d;padding:14px 18px;font-family:inherit;font-size:1rem}.input:focus{border-color:var(--accent-primary);outline:none;box-shadow:0 0 0 3px #e9456033}.input::placeholder{color:var(--text-muted)}.select-wrapper{position:relative}.select{width:100%;color:var(--text-primary);border:1px solid var(--glass-border);border-radius:var(--radius-md);cursor:pointer;appearance:none;transition:all var(--transition-base);background:#ffffff0d;padding:12px 40px 12px 18px;font-family:inherit;font-size:1rem}.select:focus{border-color:var(--accent-primary);outline:none}.select option{background:var(--bg-secondary);color:var(--text-primary)}.tabs{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-lg);border:1px solid var(--glass-border);gap:4px;padding:4px;display:flex}.tab{color:var(--text-secondary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);background:0 0;border:none;flex:1;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-size:1rem;font-weight:500;display:flex}.tab:hover{color:var(--text-primary);background:#ffffff0d}.tab.active{color:#fff;background:var(--accent-gradient);box-shadow:0 2px 10px #e945604d}.chip{border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.5px;align-items:center;padding:4px 12px;font-size:.75rem;font-weight:600;display:inline-flex}.chip-success{color:var(--accent-success);background:#00d9a533;border:1px solid #00d9a54d}.chip-warning{color:var(--accent-warning);background:#ffc10733;border:1px solid #ffc1074d}.chip-primary{color:var(--accent-secondary);background:#e9456033;border:1px solid #e945604d}.chip-default{background:var(--glass-bg);color:var(--text-secondary);border:1px solid var(--glass-border)}.table-container{border-radius:var(--radius-lg);border:1px solid var(--glass-border);background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);overflow-x:auto}.table{border-collapse:collapse;width:100%}.table th,.table td{text-align:left;padding:14px 18px}.table th{color:var(--text-secondary);border-bottom:1px solid var(--glass-border);text-transform:uppercase;letter-spacing:.5px;background:#ffffff08;font-size:.875rem;font-weight:600}.table td{border-bottom:1px solid #ffffff0d}.table tr:last-child td{border-bottom:none}.table tr:hover td{background:#ffffff08}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#000000b3;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--bg-secondary);border:1px solid var(--glass-border);border-radius:var(--radius-xl);width:100%;max-width:480px;padding:24px;box-shadow:0 20px 60px #00000080}.modal-header{margin-bottom:20px}.modal-title{font-size:1.5rem;font-weight:600}.modal-footer{justify-content:flex-end;gap:12px;margin-top:24px;display:flex}.radio-group{flex-direction:column;gap:12px;display:flex}.radio-option{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);align-items:center;gap:12px;padding:14px 18px;display:flex}.radio-option:hover{border-color:var(--accent-primary);background:#e945600d}.radio-option.selected{border-color:var(--accent-primary);background:#e945601a}.radio-circle{border:2px solid var(--glass-border);width:20px;height:20px;transition:all var(--transition-base);border-radius:50%;justify-content:center;align-items:center;display:flex}.radio-option.selected .radio-circle{border-color:var(--accent-primary)}.radio-circle:after{content:"";background:var(--accent-primary);opacity:0;width:10px;height:10px;transition:all var(--transition-fast);border-radius:50%;transform:scale(0)}.radio-option.selected .radio-circle:after{opacity:1;transform:scale(1)}.switch{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-full);cursor:pointer;width:48px;height:26px;transition:all var(--transition-base);position:relative}.switch.active{background:var(--accent-primary);border-color:var(--accent-primary)}.switch:after{content:"";width:20px;height:20px;transition:all var(--transition-base);background:#fff;border-radius:50%;position:absolute;top:2px;left:2px}.switch.active:after{left:24px}.progress{background:var(--glass-bg);border-radius:var(--radius-full);width:100%;height:4px;overflow:hidden}.progress-bar{background:var(--accent-gradient);border-radius:var(--radius-full);height:100%;transition:width var(--transition-slow)}.fab{background:var(--accent-gradient);color:#fff;cursor:pointer;width:56px;height:56px;transition:all var(--transition-base);z-index:100;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:24px;display:flex;position:fixed;bottom:24px;right:24px;box-shadow:0 4px 20px #e9456066}.fab:hover{transform:scale(1.1);box-shadow:0 6px 30px #e9456080}.navbar{-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);z-index:100;background:#0a0a0fcc;padding:16px 24px;position:sticky;top:0}.navbar-content{justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;display:flex}.navbar-title{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.25rem;font-weight:700}.container{max-width:800px;margin:0 auto;padding:24px}.container-lg{max-width:1200px}.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:16px}.mt-4{margin-top:24px}.mt-6{margin-top:48px}.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:16px}.mb-4{margin-bottom:24px}.p-1{padding:4px}.p-2{padding:8px}.p-3{padding:16px}.p-4{padding:24px}.gap-1{gap:4px}.gap-2{gap:8px}.gap-3{gap:16px}.gap-4{gap:24px}.text-center{text-align:center}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.text-success{color:var(--accent-success)}.text-accent{color:var(--accent-primary)}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.animate-fade-in{animation:.3s fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-slide-in{animation:.3s slideIn}@keyframes slideIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.spinner{border:3px solid var(--glass-border);border-top-color:var(--accent-primary);border-radius:50%;width:40px;height:40px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.options-grid{gap:12px;display:grid}.option-btn{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);color:var(--text-primary);text-align:left;cursor:pointer;transition:all var(--transition-base);align-items:center;gap:12px;padding:16px 20px;font-size:1rem;display:flex}.option-btn:hover:not(:disabled){border-color:var(--accent-primary);background:#e945600d}.option-btn.correct{border-color:var(--accent-success);background:#00d9a51a}.option-btn.incorrect{border-color:var(--accent-primary);background:#e945601a}.option-btn:disabled{cursor:not-allowed;opacity:.8}.rank-badge{border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;font-size:.875rem;font-weight:700;display:inline-flex}.rank-1{color:#000;background:linear-gradient(135deg,gold,#ffb700)}.rank-2{color:#000;background:linear-gradient(135deg,silver,#a0a0a0)}.rank-3{color:#fff;background:linear-gradient(135deg,#cd7f32,#b56528)}.rank-default{background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text-secondary)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{border-radius:var(--radius-full);background:#ffffff1a}::-webkit-scrollbar-thumb:hover{background:#fff3}