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

:root {
  /* Colors - Light Theme */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #fafbfc;
  --color-bg-card: rgba(255, 255, 255, 0.9);
  --color-bg-card-hover: rgba(255, 255, 255, 0.95);

  /* Gradient Colors */
  --color-gradient-orange: #ff8c42;
  --color-gradient-pink: #ff3366;
  --color-gradient-primary: linear-gradient(135deg, var(--color-gradient-orange) 0%, var(--color-gradient-pink) 100%);

  /* Text Colors */
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;

  /* Accent Colors */
  --color-accent-orange: #ff8c42;
  --color-accent-pink: #ff3366;
  --color-accent-success: #4CAF50;
  --color-accent-warning: #FFC107;
  --color-accent-error: #F44336;

  /* Border & Divider */
  --color-border: rgba(0, 0, 0, 0.1);
  --color-divider: rgba(0, 0, 0, 0.05);

  /* Spacing */
  --spacing-xs: 0.5rem;    /* 8px */
  --spacing-sm: 0.75rem;   /* 12px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */

  /* Typography */
  --font-family-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-family-heading: 'Inter', var(--font-family-primary);

  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 2rem;      /* 32px */
  --font-size-4xl: 2.5rem;    /* 40px */
  --font-size-5xl: 3rem;      /* 48px */

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.8;

  /* Border Radius */
  --radius-sm: 0.375rem;   /* 6px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 20px rgba(255, 140, 66, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;

  /* Breakpoints (for reference in JS) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;

  /* Container */
  --container-max-width: 1280px;
  --container-padding: var(--spacing-lg);

  /* Header */
  --header-height: 80px;

  /* Card */
  --card-padding: var(--spacing-xl);

  /* Button */
  --button-height-sm: 36px;
  --button-height-md: 44px;
  --button-height-lg: 52px;

  /* Input */
  --input-height: 48px;
  --input-padding: var(--spacing-md);
}

/* Dark mode variables (already dark by default, but keeping for consistency) */
[data-theme="dark"] {
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #1a1a1a;
}

/* Media query helpers for JavaScript */
@custom-media --mobile (max-width: 639px);
@custom-media --tablet (min-width: 640px) and (max-width: 1023px);
@custom-media --desktop (min-width: 1024px);