static/frontend/src/styles/variables.css

/**
 * CSS Design System Variables
 * Premium dark-mode-first design
 */

:root {
  /* Color Palette - Dark Mode (Default) */
  --bg-primary: #0a0a0b;
  --bg-secondary: #141416;
  --bg-tertiary: #1c1c1f;
  --bg-elevated: #242428;

  /* Accent Colors */
  --accent-primary: #6366f1;
  --accent-primary-hover: #818cf8;
  --accent-secondary: #8b5cf6;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-error: #ef4444;

  /* Text Colors */
  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --text-disabled: #52525b;

  /* Border Colors */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.1);
  --border-emphasis: rgba(255, 255, 255, 0.15);

  /* Glassmorphism */
  --glass-bg: rgba(20, 20, 22, 0.8);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(12px);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 300ms ease;

  /* Z-Index Layers */
  --z-base: 1;
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-overlay: 30;
  --z-modal: 40;
  --z-toast: 50;

  /* Layout */
  --sidebar-width: 320px;
  --header-height: 56px;
}

/* Light Mode */
[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --bg-elevated: #ffffff;

  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --text-disabled: #d1d5db;

  --border-subtle: rgba(0, 0, 0, 0.04);
  --border-default: rgba(0, 0, 0, 0.08);
  --border-emphasis: rgba(0, 0, 0, 0.12);

  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(0, 0, 0, 0.06);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.1);
}