/**
 * Dispo2 Design System - CSS Custom Properties
 * Mobile-first design tokens for sports team management
 *
 * Usage: var(--color-primary-500)
 */

:root {
  /* Colors - Primary Palette */
  --color-primary-50: #E8F5E9;
  --color-primary-100: #C8E6C9;
  --color-primary-200: #A5D6A7;
  --color-primary-300: #81C784;
  --color-primary-400: #66BB6A;
  --color-primary-500: #4CAF50;
  --color-primary-600: #43A047;
  --color-primary-700: #388E3C;
  --color-primary-800: #2E7D32;
  --color-primary-900: #1B5E20;

  /* Colors - Neutral Palette */
  --color-neutral-0: #FFFFFF;
  --color-neutral-50: #FAFAFA;
  --color-neutral-100: #F5F5F5;
  --color-neutral-200: #EEEEEE;
  --color-neutral-300: #E0E0E0;
  --color-neutral-400: #BDBDBD;
  --color-neutral-500: #9E9E9E;
  --color-neutral-600: #757575;
  --color-neutral-700: #616161;
  --color-neutral-800: #424242;
  --color-neutral-900: #212121;

  /* Colors - Semantic */
  --color-success: #4CAF50;
  --color-warning: #FF9800;
  --color-error: #F44336;
  --color-info: #2196F3;

  /* Colors - RSVP Status */
  --color-rsvp-yes: #4CAF50;
  --color-rsvp-no: #F44336;
  --color-rsvp-maybe: #FF9800;
  --color-rsvp-waiting: #9E9E9E;

  /* Typography - Font Families */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Typography - Font Sizes */
  --font-size-h1: 20px;
  --font-size-h2: 16px;
  --font-size-h3: 16px;
  --font-size-h4: 13px;
  --font-size-body: 16px;
  --font-size-body-sm: 14px;
  --font-size-caption: 12px;

  /* Typography - Line Heights */
  --line-height-h1: 28px;
  --line-height-h2: 22px;
  --line-height-h3: 22px;
  --line-height-h4: 18px;
  --line-height-body: 24px;
  --line-height-body-sm: 20px;
  --line-height-caption: 16px;

  /* Typography - Font Weights */
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing Scale */
  --spacing-0: 0px;
  --spacing-1: 4px;
  --spacing-2: 8px;
  --spacing-3: 12px;
  --spacing-4: 16px;
  --spacing-5: 20px;
  --spacing-6: 24px;
  --spacing-8: 32px;
  --spacing-10: 40px;
  --spacing-12: 48px;
  --spacing-16: 64px;
  --spacing-20: 80px;
  --spacing-24: 96px;

  /* Border Radius */
  --radius-none: 0px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-none: none;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-top: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);

  /* Z-Index Scale */
  --z-index-base: 0;
  --z-index-dropdown: 1000;
  --z-index-sticky: 1020;
  --z-index-fixed: 1030;
  --z-index-modal-backdrop: 1040;
  --z-index-modal: 1050;
  --z-index-popover: 1060;
  --z-index-tooltip: 1070;

  /* Icon Sizes */
  --icon-size-xs: 16px;
  --icon-size-sm: 20px;
  --icon-size-md: 24px;
  --icon-size-lg: 32px;
  --icon-size-xl: 44px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Touch Targets */
  --touch-target-min: 44px;
  --touch-target-comfortable: 48px;
}

/* Typography Utility Classes */
.font-h1 {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-h1);
  line-height: var(--line-height-h1);
  font-weight: var(--font-weight-bold);
}

.font-h2 {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-h2);
  line-height: var(--line-height-h2);
  font-weight: var(--font-weight-semibold);
}

.font-h3 {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-h3);
  line-height: var(--line-height-h3);
  font-weight: var(--font-weight-semibold);
}

.font-h4 {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-h4);
  line-height: var(--line-height-h4);
  font-weight: var(--font-weight-medium);
}

.font-body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  font-weight: var(--font-weight-regular);
}

.font-body-sm {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-body-sm);
  line-height: var(--line-height-body-sm);
  font-weight: var(--font-weight-regular);
}

.font-caption {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-caption);
  line-height: var(--line-height-caption);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Base Resets */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-primary);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-neutral-900);
  background-color: var(--color-neutral-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Focus Visible (Accessibility) */
*:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Touch Target Minimum */
button,
a,
input[type="checkbox"],
input[type="radio"] {
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
}