/* ============================================================
   UBCAR.ro — CSS Custom Properties (Design Tokens)
   ============================================================ */

:root {
  /* ----------------------------------------
     Color Palette
     ---------------------------------------- */

  /* Primary — Deep blue (trust, professionalism, faith) */
  --color-primary-50: #e8edf5;
  --color-primary-100: #c5d1e6;
  --color-primary-200: #9fb3d5;
  --color-primary-300: #7894c4;
  --color-primary-400: #5b7db8;
  --color-primary-500: #3e66ab;
  --color-primary-600: #385ea4;
  --color-primary-700: #30539a;
  --color-primary-800: #284991;
  --color-primary-900: #1b3780;

  /* Secondary — Warm gold (warmth, tradition, community) */
  --color-secondary-50: #fdf6e7;
  --color-secondary-100: #fae8c3;
  --color-secondary-200: #f7d99b;
  --color-secondary-300: #f3ca73;
  --color-secondary-400: #f0be55;
  --color-secondary-500: #edb336;
  --color-secondary-600: #eba630;
  --color-secondary-700: #e89329;
  --color-secondary-800: #e58222;
  --color-secondary-900: #e06316;

  /* Accent — Soft teal (freshness, clarity) */
  --color-accent-50: #e0f4f4;
  --color-accent-100: #b3e3e4;
  --color-accent-200: #80d1d2;
  --color-accent-300: #4dbfc0;
  --color-accent-400: #26b1b3;
  --color-accent-500: #00a3a5;
  --color-accent-600: #009597;
  --color-accent-700: #008487;
  --color-accent-800: #007477;
  --color-accent-900: #005757;

  /* Neutrals */
  --color-white: #ffffff;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #f1f3f5;
  --color-gray-200: #e9ecef;
  --color-gray-300: #dee2e6;
  --color-gray-400: #ced4da;
  --color-gray-500: #636b73;    /* WCAG AA ✓ — 5.2:1 on #fff, 4.65:1 on #f8f9fa */
  --color-gray-600: #525a61;    /* WCAG AA ✓ — 6.3:1 on #fff */
  --color-gray-700: #495057;
  --color-gray-800: #343a40;
  --color-gray-900: #212529;
  --color-black: #000000;

  /* Semantic Colors */
  --color-success: #2e7d32;
  --color-error: #c62828;
  --color-warning: #f57f17;
  --color-info: #1565c0;

  /* Background & Surface */
  --color-bg: var(--color-white);
  --color-bg-alt: var(--color-gray-50);
  --color-surface: var(--color-white);
  --color-surface-elevated: var(--color-white);

  /* Text */
  --color-text: var(--color-gray-900);
  --color-text-secondary: var(--color-gray-700);  /* #495057 — 7.03:1 contrast */
  --color-text-muted: var(--color-gray-500);      /* #6c757d — 4.6:1 contrast — WCAG AA ✓ */
  --color-text-inverse: var(--color-white);
  --color-link: var(--color-primary-600);
  --color-link-hover: var(--color-primary-800);

  /* ----------------------------------------
     Typography
     ---------------------------------------- */

  /* Font Families */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-family-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-family-mono: 'Fira Code', 'Cascadia Code', 'Consolas', monospace;

  /* Font Sizes (modular scale — 1.25 ratio) */
  --font-size-xs: 0.75rem;     /* 12px */
  --font-size-sm: 0.875rem;    /* 14px */
  --font-size-base: 1rem;      /* 16px */
  --font-size-md: 1.125rem;    /* 18px */
  --font-size-lg: 1.25rem;     /* 20px */
  --font-size-xl: 1.5rem;      /* 24px */
  --font-size-2xl: 1.875rem;   /* 30px */
  --font-size-3xl: 2.25rem;    /* 36px */
  --font-size-4xl: 3rem;       /* 48px */
  --font-size-5xl: 3.75rem;    /* 60px */

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.375;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.75;

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

  /* Letter Spacing */
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;

  /* ----------------------------------------
     Spacing Scale (8px base)
     ---------------------------------------- */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */

  /* ----------------------------------------
     Layout
     ---------------------------------------- */
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-wide: 1400px;
  --container-padding: var(--space-6);

  /* ----------------------------------------
     Borders & Radii
     ---------------------------------------- */
  --radius-sm: 0.25rem;   /* 4px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-full: 9999px;

  --border-width: 1px;
  --border-color: var(--color-gray-200);

  /* ----------------------------------------
     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), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

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

  /* ----------------------------------------
     Z-Index Scale
     ---------------------------------------- */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* ----------------------------------------
     Header
     ---------------------------------------- */
  --header-height: 4.5rem; /* 72px */
}

/* ----------------------------------------
   Responsive Overrides
   ---------------------------------------- */

/* Tablet (768px+) */
@media (min-width: 768px) {
  :root {
    --container-padding: var(--space-8);
  }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  :root {
    --container-padding: var(--space-10);
  }
}