/**
 * Design Tokens
 * Extracted from Flutter AppTheme (lib/core/design/theme/app_theme.dart)
 *
 * Purpose: Share design system between Flutter app and admin dashboard
 */

:root {
  /* ========================================================================
     Colors - Dark Theme (Primary)
     Source: lib/core/design/tokens/colors.dart - DarkColors
     ======================================================================== */

  /* Brand */
  --color-primary: #4A90E2;
  --color-secondary: #7B68EE;

  /* Surfaces */
  --color-background: #121212;
  --color-surface: #1E1E1E;
  --color-surface-variant: #2A2A2A;

  /* Text */
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #B0B0B0;
  --color-text-tertiary: #808080;
  --color-text-disabled: #4D4D4D;

  /* Borders & Dividers */
  --color-border: #333333;
  --color-divider: #2A2A2A;

  /* Semantic */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;

  /* ========================================================================
     Typography
     Source: lib/core/design/tokens/typography.dart - AppTypography
     ======================================================================== */

  --font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Font Sizes */
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;

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

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* ========================================================================
     Spacing
     Source: lib/core/design/tokens/spacing.dart - AppSpacing
     ======================================================================== */

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  /* ========================================================================
     Border Radius
     Source: lib/core/design/tokens/radius.dart - AppRadius
     ======================================================================== */

  --radius-none: 0;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* ========================================================================
     Elevation (Shadows)
     Source: lib/core/design/tokens/elevation.dart - AppElevation
     ======================================================================== */

  --shadow-none: none;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.15);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.15);

  /* ========================================================================
     Opacity
     Source: lib/core/design/tokens/opacity.dart - AppOpacity
     ======================================================================== */

  --opacity-disabled: 0.38;
  --opacity-hover: 0.08;
  --opacity-pressed: 0.12;
  --opacity-focus: 0.12;
  --opacity-selected: 0.16;

  /* ========================================================================
     Animation
     Source: lib/core/design/tokens/animation.dart - AppAnimation
     ======================================================================== */

  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 350ms;

  --easing-standard: cubic-bezier(0.4, 0.0, 0.2, 1);
  --easing-decelerate: cubic-bezier(0.0, 0.0, 0.2, 1);
  --easing-accelerate: cubic-bezier(0.4, 0.0, 1, 1);
}

/* ============================================================================
   Base Styles
   ============================================================================ */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================================
   Typography Utilities
   ============================================================================ */

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-md { font-size: var(--font-size-md); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }

.font-regular { font-weight: var(--font-weight-regular); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-error { color: var(--color-error); }
.text-success { color: var(--color-success); }
.text-center { text-align: center; }

/* ============================================================================
   Component Styles (Matching Flutter)
   ============================================================================ */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast) var(--easing-standard);
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: var(--opacity-disabled);
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.btn-primary:hover:not(:disabled) {
  filter: brightness(1.1);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-surface-variant);
}

.btn-danger {
  background-color: var(--color-error);
  color: #FFFFFF;
}

.btn-danger:hover:not(:disabled) {
  filter: brightness(1.1);
}

.btn-sm {
  padding: calc(var(--spacing-xs) + 2px) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

/* Cards */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

/* Table */
.table-container {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th {
  background-color: var(--color-surface-variant);
  padding: var(--spacing-md);
  text-align: left;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
}

.table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}

.table tr:last-child td {
  border-bottom: none;
}

.table tbody tr:hover {
  background-color: rgba(255, 255, 255, var(--opacity-hover));
}

/* Input Fields */
.input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--easing-standard);
}

.input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.input::placeholder {
  color: var(--color-text-tertiary);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.2);
  color: var(--color-success);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--color-warning);
}

.badge-error {
  background-color: rgba(239, 68, 68, 0.2);
  color: var(--color-error);
}

/* Spacing Utilities */
.m-0 { margin: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.ml-sm { margin-left: var(--spacing-sm); }

.p-0 { padding: 0; }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }