:root {
  --bg-body: #F7F7F9;
  --bg-sidebar: rgba(255, 255, 255, 0.75);
  --bg-surface: #FFFFFF;
  --bg-input: #F4F4F5;
  --text-main: #09090B;
  --text-secondary: #52525B;
  --text-muted: #A1A1AA;
  --text-inverse: #FFFFFF;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-focus: #18181B;
  --primary: #18181B;
  --primary-hover: #27272A;
  --primary-light: rgba(24, 24, 27, 0.05);
  --primary-text: #FFFFFF;
  --primary-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.03), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.04), 0 2px 8px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.06), 0 12px 24px rgba(0, 0, 0, 0.03);
  --shadow-glow: 0 0 0 1px rgba(0, 0, 0, 0.03), 0 8px 24px rgba(0, 0, 0, 0.04);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', monospace;
  --sidebar-width: 250px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.2, 0.9, 0.4, 1.05);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.35s;
  --duration-slow: 0.5s;
  --gradient-primary: linear-gradient(135deg, #18181B, #3F3F46);
  --gradient-accent: linear-gradient(135deg, #6366F1, #8B5CF6);
  --gradient-success: linear-gradient(135deg, #059669, #10B981);
  --glow-primary: rgba(24, 24, 27, 0.15);
  --glow-accent: rgba(99, 102, 241, 0.3);
  --glow-success: rgba(16, 185, 129, 0.3);
}
[data-theme="dark"] {
  --bg-body: #000000;
  --bg-sidebar: rgba(10, 10, 10, 0.65);
  --bg-surface: #09090B;
  --bg-input: #18181B;
  --text-main: #EDEDED;
  --text-secondary: #A1A1AA;
  --text-muted: #52525B;
  --text-inverse: #000000;
  --border-color: rgba(255, 255, 255, 0.1);
  --border-focus: #EDEDED;
  --primary: #EDEDED;
  --primary-hover: #FFFFFF;
  --primary-light: rgba(255, 255, 255, 0.12);
  --primary-text: #000000;
  --primary-shadow: 0 4px 16px rgba(255, 255, 255, 0.15);
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.8);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.9);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 1);
  --shadow-lg: 0 32px 64px rgba(0, 0, 0, 1);
  --shadow-glow: 0 0 0 1px rgba(255, 255, 255, 0.06), 0 8px 32px rgba(255, 255, 255, 0.04);
  --gradient-primary: linear-gradient(135deg, #E4E4E7, #A1A1AA);
  --gradient-accent: linear-gradient(135deg, #818CF8, #A78BFA);
  --gradient-success: linear-gradient(135deg, #34D399, #6EE7B7);
  --glow-primary: rgba(255, 255, 255, 0.12);
  --glow-accent: rgba(129, 140, 248, 0.35);
  --glow-success: rgba(52, 211, 153, 0.35);
}