.theme-dark {
    --color-bg: #0f0f0f;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #262626;
    --color-surface: #1a1a1a;
    
    --color-text: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-muted: #6c757d;
    
    --color-border: #333333;
    --color-shadow: rgba(0, 0, 0, 0.3);
}

.theme-dark .header {
    background: rgba(26, 26, 26, 0.9);
}

.theme-dark .slider__indicator {
    background: #444444;
}