:root {
  /* ── Brand Colors ── */
  --color-accent-red:       #DC3545;
  --color-accent-red-dark:  #b02a37;
  --color-accent-red-light: #fff5f5;
  --color-accent-blue:      #0D6EFD;
  --color-accent-blue-dark: #0a58ca;
  --color-accent-blue-light:#E7F1FF;

  /* ── Surface ── */
  --color-bg-body:   #F8F9FA;
  --color-bg-card:   #FFFFFF;
  --color-bg-header: #FFFFFF;

  /* ── Text ── */
  --color-text-primary:   #212529;
  --color-text-secondary: #6C757D;
  --color-text-muted:     #ADB5BD;

  /* ── Borders ── */
  --color-border:       #DEE2E6;
  --color-border-light: #F1F3F5;

  /* ── Typography ── */
  --font-fa:        'Vazirmatn', 'Tahoma', sans-serif;
  --font-size-xs:   0.75rem;
  --font-size-sm:   0.875rem;
  --font-size-base: 1rem;
  --font-size-lg:   1.125rem;
  --font-size-xl:   1.25rem;
  --font-size-2xl:  1.5rem;
  --font-size-3xl:  1.875rem;
  --font-size-4xl:  2.25rem;

  /* ── Spacing ── */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-7:  1.75rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* ── Border Radius ── */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* ── Shadows ── */
  --shadow-sm:     0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:     0 4px 12px rgba(0,0,0,0.10), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg:     0 10px 30px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.06);
  --shadow-header: 0 2px 8px rgba(0,0,0,0.07);

  /* ── Transitions ── */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* ── Layout ── */
  --container-max: 1240px;
  --header-height: 115px;
}