:root {
    --bg-primary: #f5f7fa;
    --bg-secondary: #f8fafc;
    --bg-surface: #f1f5f9;
    --bg-card: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-input: #ffffff;
    --bg-nav: rgba(255, 255, 255, 0.9);
    --bg-topbar: #f8fafc;
    --bg-hover: #f3f4f6;
    --bg-sidebar: #ffffff;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;
    
    --border-color: #e5e7eb;
    --border-light: rgba(0, 0, 0, 0.05);
    
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.1);
    
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    
    --scrollbar-track: #f1f5f9;
    --scrollbar-thumb: #cbd5e1;
    --scrollbar-thumb-hover: #94a3b8;
    
    --grid-line: rgba(0, 0, 0, 0.03);
    --glow-color: rgba(99, 102, 241, 0.1);
    
    --sidebar-bg: #ffffff;
    --sidebar-text: #334155;
    --sidebar-hover: #f1f5f9;
    --sidebar-active: linear-gradient(135deg, #3b82f6, #60a5fa);
}

body.dark {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-surface: #212121;
    --bg-card: #1a1a1a;
    --bg-glass: rgba(15, 23, 42, 0.8);
    --bg-input: #2f2f2f;
    --bg-nav: rgba(15, 23, 42, 0.9);
    --bg-topbar: #0a0a1a;
    --bg-hover: rgba(255, 255, 255, 0.05);
    --bg-sidebar: #1a1a1a;
    
    --text-primary: #ececec;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --text-inverse: #0f172a;
    
    --border-color: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.05);
    
    --glass-bg: rgba(15, 23, 42, 0.4);
    --glass-border: rgba(255, 255, 255, 0.08);
    
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.15);
    
    --scrollbar-track: #0f172a;
    --scrollbar-thumb: #334155;
    --scrollbar-thumb-hover: #475569;
    
    --grid-line: rgba(255, 255, 255, 0.03);
    --glow-color: rgba(79, 70, 229, 0.15);
    
    --sidebar-bg: #1a1a1a;
    --sidebar-text: #e2e8f0;
    --sidebar-hover: rgba(255, 255, 255, 0.1);
    --sidebar-active: linear-gradient(135deg, #3b82f6, #60a5fa);
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}