.intro-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;z-index:1000}.intro-content{border-radius:20px;padding:60px 40px;max-width:600px;width:90%;text-align:center}.intro-image{width:100%;height:100%;object-fit:cover;margin-bottom:20px}.intro-title{font-size:32px;font-weight:700;color:#1a202c;margin-bottom:20px;line-height:1.2}.intro-description{font-size:18px;color:#4a5568;line-height:1.6;margin-bottom:40px}.intro-features{display:flex;flex-direction:column;gap:16px;margin-bottom:50px;align-items:flex-start;text-align:left}.feature-item{display:flex;align-items:center;gap:12px}.feature-icon{font-size:20px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:#f7fafc;border-radius:8px}.feature-text{font-size:16px;color:#2d3748;font-weight:500}.start-button{background:linear-gradient(135deg,#667eea,#764ba2);border:none;color:#fff;padding:18px 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ease}.restart-button:hover{background:#4f46e5}.fixed-ui{position:fixed;bottom:0;left:0;right:0;z-index:1000;pointer-events:none}.fixed-ui>*{pointer-events:all}.progress-container{position:absolute;bottom:20px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:8px}.progress-bar{width:200px;height:6px;background:#e0e0e0;border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:#6366f1;border-radius:3px;transition:width .3s ease}.step-indicator{align-self:flex-start;color:#6366f1;font-size:14px;font-weight:500}.nav-up-down{position:absolute;bottom:40px;left:40px;background:#6366f1;border:none;color:#fff;width:48px;height:48px;border-radius:50%;font-size:16px;cursor:pointer;transition:background-color .2s ease;display:flex;align-items:center;justify-content:center}.nav-up-down:hover{background:#4f46e5}.next-button{position:absolute;bottom:40px;right:40px;background:#6366f1;border:none;color:#fff;padding:12px 24px;border-radius:24px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease;text-transform:uppercase}.next-button:hover:not(.disabled){background:#4f46e5}.next-button.disabled{background:#9ca3af;cursor:not-allowed}.completion-button{position:absolute;width:500px;bottom:60px;left:50%;transform:translate(-50%);background:#5653fe;border:none;color:#fff;padding:16px 32px;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .5s ease-in-out;text-transform:none;box-shadow:0 4px 12px #10b9814d}.completion-button:hover{background:#059669}@media (max-width: 768px){.intro-content{padding:40px 24px;margin:20px}.intro-title{font-size:26px}.intro-description{font-size:16px}.intro-features{margin-bottom:40px}.start-button{padding:16px 36px;font-size:16px}.question-card{padding:32px 24px;margin:0 16px}.question-number{font-size:18px}.option-item{padding:14px 16px}.option-text{font-size:15px}.progress-container{bottom:20px}.progress-bar{width:160px}.nav-up-down{width:44px;height:44px;font-size:14px}.next-button{padding:10px 20px;font-size:13px}.completion-button{padding:14px 28px;font-size:15px;width:300px}}@media (max-width: 480px){.intro-content{padding:30px 20px;margin:16px}.intro-title{font-size:22px}.intro-description{font-size:14px;margin-bottom:30px}.intro-features{margin-bottom:30px}.feature-text{font-size:14px}.start-button{padding:14px 28px;font-size:15px;width:100%;max-width:280px}.question-section{padding:20px 12px}.progress-bar{width:95vw}.question-card{padding:24px 16px}.completion-title{font-size:24px}.completion-message{font-size:16px}}html{scroll-snap-type:y mandatory;scroll-behavior:smooth}.question-section{scroll-snap-align:start}.option-item:focus-within{outline:2px solid #6366f1;outline-offset:2px}.nav-up-down:focus,.next-button:focus,.restart-button:focus,.completion-button:focus{outline:2px solid #6366f1;outline-offset:2px}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}.progress-fill,.option-item,.option-input,.next-button,.nav-up-down,.restart-button,.completion-button{transition:none}}:root{--primary-color: #1890ff;--primary-hover: #40a9ff;--primary-active: #096dd9;--success-color: #52c41a;--warning-color: #faad14;--error-color: #ff4d4f;--info-color: #1890ff;--text-primary: #262626;--text-secondary: #595959;--text-tertiary: #8c8c8c;--text-disabled: #bfbfbf;--border-color: #d9d9d9;--border-light: #f0f0f0;--background-color: #ffffff;--background-light: #fafafa;--background-gray: #f5f5f5;--border-radius-sm: 4px;--border-radius: 6px;--border-radius-lg: 8px;--spacing-xs: 4px;--spacing-sm: 8px;--spacing: 12px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-size-xs: 12px;--font-size-sm: 14px;--font-size: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 32px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px 0 rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--transition-fast: .15s ease-in-out;--transition: .3s ease-in-out;--transition-slow: .5s ease-in-out}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{line-height:1.6;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}@tailwind base;@tailwind components;@tailwind utilities;