/* 主题系统 - CSS 变量定义 */

/* 明亮主题 */
.theme-light {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-hover: #e2e8f0;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    
    --accent-color: #3b82f6;
    --accent-color-dark: #2563eb;
    --accent-color-alpha: rgba(59, 130, 246, 0.1);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #06b6d4;
}

/* 暗黑主题 */
.theme-dark {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-hover: #475569;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    
    --border-color: #334155;
    --border-hover: #475569;
    
    --accent-color: #60a5fa;
    --accent-color-dark: #3b82f6;
    --accent-color-alpha: rgba(96, 165, 250, 0.1);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    
    --success-color: #34d399;
    --warning-color: #fbbf24;
    --error-color: #f87171;
    --info-color: #22d3ee;
}

/* 主题切换动画 */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* 主题切换按钮特殊样式 */
.theme-toggle .sun-icon {
    display: block;
}

.theme-toggle .moon-icon {
    display: none;
}

.theme-dark .theme-toggle .sun-icon {
    display: none;
}

.theme-dark .theme-toggle .moon-icon {
    display: block;
}

/* 暗黑主题下的特殊调整 */
.theme-dark .search-input {
    background-color: var(--bg-primary);
}



.theme-dark .modal-backdrop {
    background-color: rgba(0, 0, 0, 0.9);
}

.theme-dark .book-image-placeholder {
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-hover));
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .theme-light {
        --border-color: #94a3b8;
        --text-secondary: #475569;
    }
    
    .theme-dark {
        --border-color: #64748b;
        --text-secondary: #e2e8f0;
    }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
    
    .book-card:hover {
        transform: none;
    }
    
    .slot-machine:hover {
        transform: none;
    }
}

/* 系统主题偏好检测 */
@media (prefers-color-scheme: dark) {
    :root:not(.theme-light):not(.theme-dark) {
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --bg-tertiary: #334155;
        --bg-hover: #475569;
        
        --text-primary: #f8fafc;
        --text-secondary: #cbd5e1;
        --text-tertiary: #94a3b8;
        
        --border-color: #334155;
        --border-hover: #475569;
        
        --accent-color: #60a5fa;
        --accent-color-dark: #3b82f6;
        --accent-color-alpha: rgba(96, 165, 250, 0.1);
        
        --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
        --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
        
        --success-color: #34d399;
        --warning-color: #fbbf24;
        --error-color: #f87171;
        --info-color: #22d3ee;
    }
}