*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #818cf8;--secondary: #ec4899;--secondary-light: #f472b6;--success: #10b981;--success-light: #34d399;--warning: #f59e0b;--error: #ef4444;--bg: #f8fafc;--bg-card: #ffffff;--text: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.5}.app{min-height:100vh;display:flex;flex-direction:column}.container{width:100%;max-width:480px;margin:0 auto;padding:20px;flex:1}.header{text-align:center;padding:32px 0 24px}.header h1{font-size:1.75rem;font-weight:700;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header p{color:var(--text-muted);margin-top:8px;font-size:.95rem}.card{background:var(--bg-card);border-radius:16px;padding:24px;box-shadow:var(--shadow);margin-bottom:16px}.input-group{margin-bottom:20px}.input-group label{display:block;font-weight:500;margin-bottom:8px;color:var(--text)}.input{width:100%;padding:14px 16px;border:2px solid var(--border);border-radius:12px;font-size:1rem;font-family:inherit;transition:border-color .2s,box-shadow .2s;background:var(--bg-card)}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #6366f126}.input::placeholder{color:var(--text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border:none;border-radius:12px;font-size:1rem;font-weight:600;font-family:inherit;cursor:pointer;transition:all .2s;width:100%}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:var(--bg);color:var(--text);border:2px solid var(--border)}.btn-secondary:hover{border-color:var(--primary);color:var(--primary)}.btn-success{background:linear-gradient(135deg,var(--success) 0%,#059669 100%);color:#fff}.question-card{animation:slideIn .3s ease-out}@keyframes slideIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.question-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.question-number{font-size:.875rem;color:var(--text-muted);font-weight:500}.question-progress{display:flex;gap:4px}.progress-dot{width:8px;height:8px;border-radius:50%;background:var(--border);transition:background .2s}.progress-dot.active{background:var(--primary)}.progress-dot.completed{background:var(--success)}.question-text{font-size:1.25rem;font-weight:600;margin-bottom:24px;line-height:1.4}.options{display:flex;flex-direction:column;gap:12px}.option{display:flex;align-items:center;gap:12px;padding:16px;border:2px solid var(--border);border-radius:12px;background:var(--bg-card);cursor:pointer;transition:all .2s;text-align:left;font-size:1rem;font-family:inherit;width:100%}.option:hover{border-color:var(--primary-light);background:#6366f10d}.option.selected{border-color:var(--primary);background:#6366f11a}.option-emoji{font-size:1.5rem;line-height:1}.option-text{font-weight:500}.result-header{text-align:center;margin-bottom:24px}.result-score{font-size:4rem;font-weight:700;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.result-subtitle{font-size:1.25rem;color:var(--text-muted);margin-top:8px}.result-message{font-size:1.1rem;font-weight:500;padding:16px;border-radius:12px;text-align:center;margin-bottom:24px}.result-message.excellent{background:#10b9811a;color:var(--success)}.result-message.good{background:#6366f11a;color:var(--primary)}.result-message.okay{background:#f59e0b1a;color:var(--warning)}.result-message.poor{background:#ef44441a;color:var(--error)}.results-breakdown{margin-top:24px}.results-breakdown h3{font-size:1rem;margin-bottom:16px;color:var(--text-muted)}.result-item{display:flex;align-items:flex-start;gap:12px;padding:12px;border-radius:10px;margin-bottom:8px}.result-item.correct{background:#10b9811a}.result-item.wrong{background:#ef44441a}.result-icon{font-size:1.25rem;flex-shrink:0}.result-detail{flex:1}.result-question{font-weight:500;font-size:.9rem;margin-bottom:4px}.result-answer{font-size:.85rem;color:var(--text-muted)}.hall-of-fame{margin-top:16px}.hall-of-fame h2{font-size:1.25rem;margin-bottom:16px;display:flex;align-items:center;gap:8px}.leaderboard{display:flex;flex-direction:column;gap:8px}.leaderboard-item{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--bg);border-radius:12px;transition:transform .2s}.leaderboard-item:hover{transform:translate(4px)}.leaderboard-rank{font-size:1.25rem;width:32px;text-align:center}.leaderboard-item:nth-child(1) .leaderboard-rank{color:#fbbf24}.leaderboard-item:nth-child(2) .leaderboard-rank{color:#9ca3af}.leaderboard-item:nth-child(3) .leaderboard-rank{color:#d97706}.leaderboard-name{flex:1;font-weight:500}.leaderboard-score{font-weight:600;color:var(--primary)}.empty-state{text-align:center;padding:32px;color:var(--text-muted)}.share-section{margin-top:24px;padding:20px;background:linear-gradient(135deg,#6366f11a,#ec48991a);border-radius:16px;text-align:center}.share-section h3{font-size:1.1rem;margin-bottom:12px}.share-link{display:flex;gap:8px;margin-top:12px}.share-link input{flex:1;padding:12px;border:2px solid var(--border);border-radius:10px;font-size:.9rem;background:var(--bg-card)}.share-link button{padding:12px 20px;background:var(--primary);color:#fff;border:none;border-radius:10px;font-weight:600;cursor:pointer;transition:background .2s}.share-link button:hover{background:var(--primary-dark)}.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:var(--text);color:#fff;padding:12px 24px;border-radius:10px;font-weight:500;animation:toastIn .3s ease-out;z-index:100}@keyframes toastIn{0%{opacity:0;transform:translate(-50%) translateY(20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.loading{display:flex;align-items:center;justify-content:center;padding:48px}.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-card{text-align:center;padding:48px 24px}.error-icon{font-size:3rem;margin-bottom:16px}.error-card h2{font-size:1.25rem;margin-bottom:8px}.error-card p{color:var(--text-muted);margin-bottom:24px}.nav-buttons{display:flex;gap:12px;margin-top:20px}.nav-buttons .btn{flex:1}.footer-hint{text-align:center;padding:20px;color:var(--text-muted);font-size:.85rem}@media (max-width: 380px){.container{padding:16px}.card{padding:20px}.header h1{font-size:1.5rem}.question-text{font-size:1.1rem}.option{padding:14px}.result-score{font-size:3rem}}