/* ============================================
   HAIXP Design System - CSS Variables
   ============================================ */

:root {
  /* Primary Colors - Professional Blue */
  --primary: #0055a5;
  --primary-dark: #003d7a;
  --primary-light: #2e7dd1;
  --primary-gradient: linear-gradient(135deg, #0055a5 0%, #0099cc 100%);

  /* Secondary Colors */
  --secondary: #c41e3a;
  --secondary-dark: #9a1830;
  --secondary-light: #e8304a;

  /* Accent */
  --accent: #0099cc;
  --accent-light: #66ccff;

  /* Neutrals (cool slate tone) */
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1f2937;
  --gray-900: #0f172a;
  --black: #000000;

  /* Surface colors */
  --surface-bg: #f8fafc;
  --surface-primary: #ffffff;
  --surface-secondary: #f1f5f9;
  --surface-border: #e2e8f0;

  /* Text Colors */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-light: #ffffff;
  --text-light-secondary: rgba(255, 255, 255, 0.85);

  /* Typography */
  --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Cascadia 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;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

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

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 40px rgba(0, 85, 165, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  /* Layout */
  --container-max: 1200px;
  --container-wide: 1400px;
  --header-height: 72px;
}

html[data-theme="dark"] {
  --primary: #5ba3e6;
  --primary-dark: #3d8ee6;
  --primary-light: #7ab8f5;
  --primary-gradient: linear-gradient(135deg, #5ba3e6 0%, #33b5e5 100%);
  --accent: #33b5e5;
  --accent-light: #7dd3fc;

  --surface-bg: #0b1220;
  --surface-primary: #0f172a;
  --surface-secondary: #111c33;
  --surface-border: rgba(148, 163, 184, 0.18);

  --text-primary: #e2e8f0;
  --text-secondary: rgba(226, 232, 240, 0.82);
  --text-muted: rgba(226, 232, 240, 0.62);
}