/* CSS Variables for Global Design System */

:root {
  /* Color Palette */
  --primary-color: #3498db;
  --primary-hover: #2980b9;
  --primary-active: #1f618d;

  --secondary-color: #2ecc71;
  --secondary-hover: #27ae60;
  --secondary-active: #229954;

  --accent-color: #e74c3c;
  --accent-hover: #c0392b;
  --accent-active: #a93226;

  --warning-color: #f39c12;
  --warning-hover: #e67e22;
  --warning-active: #d35400;

  --info-color: #3498db;
  --info-hover: #2980b9;
  --info-active: #1f618d;

  --success-color: #27ae60;
  --success-hover: #229954;
  --success-active: #1e8449;

  --error-color: #e74c3c;
  --error-hover: #c0392b;
  --error-active: #a93226;

  /* Neutral Colors */
  --text-primary: #2c3e50;
  --text-secondary: #7f8c8d;
  --text-light: #95a5a6;
  --text-muted: #bdc3c7;

  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f0f2f5;
  --bg-quaternary: #e9ecef;

  --border-light: #dee2e6;
  --border-medium: #ced4da;
  --border-dark: #adb5bd;

  /* Typography */
  --font-family-primary: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-family-secondary: "Roboto", "Open Sans", sans-serif;

  --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: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  --font-size-5xl: 3rem;      /* 48px */

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing */
  --spacing-xs: 0.25rem;    /* 4px */
  --spacing-sm: 0.5rem;     /* 8px */
  --spacing-md: 1rem;       /* 16px */
  --spacing-lg: 1.5rem;     /* 24px */
  --spacing-xl: 2rem;       /* 32px */
  --spacing-2xl: 2.5rem;    /* 40px */
  --spacing-3xl: 3rem;      /* 48px */

  /* Border Radius */
  --border-radius-sm: 0.25rem;   /* 4px */
  --border-radius-md: 0.375rem;  /* 6px */
  --border-radius-lg: 0.5rem;    /* 8px */
  --border-radius-xl: 0.75rem;   /* 12px */
  --border-radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --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);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Breakpoints */
  --breakpoint-xs: 0;
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-2xl: 1400px;

  /* Z-Index */
  --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;
  --z-index-toast: 1080;

  /* Layout */
  --header-height: 70px;
  --footer-height: 80px;
  --sidebar-width: 250px;
  --sidebar-width-collapsed: 80px;
  --content-max-width: 1400px;
  --content-padding: var(--spacing-md);

  /* Auth and Forms */
  --auth-container-max-width: 400px;
  --form-group-margin-bottom: var(--spacing-md);
  --form-label-font-weight: var(--font-weight-medium);
  --form-control-border: var(--border-medium);
  --form-control-focus-border: var(--primary-color);
  --form-control-focus-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);

  /* Profile */
  --profile-container-max-width: 1000px;
  --profile-grid-gap: var(--spacing-xl);

  /* Map Specific */
  --map-control-bg: rgba(255, 255, 255, 0.9);
  --map-control-border: rgba(0, 0, 0, 0.1);
  --map-popup-bg: #ffffff;
  --map-popup-border: rgba(0, 0, 0, 0.1);
}

/* Dark Mode Variables */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #e9ecef;
    --text-secondary: #adb5bd;
    --text-light: #ced4da;
    --text-muted: #6c757d;

    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3d3d3d;
    --bg-quaternary: #4d4d4d;

    --border-light: #495057;
    --border-medium: #343a40;
    --border-dark: #212529;

    --map-control-bg: rgba(45, 45, 45, 0.9);
    --map-control-border: rgba(255, 255, 255, 0.1);
    --map-popup-bg: #2d2d2d;
    --map-popup-border: rgba(255, 255, 255, 0.1);
  }
}