:root {
  /* Colors */
  --color-science-blue: #1D69D9;
  --color-lavender-magenta: #F499FF;
  --color-picton-blue: #00B0FF;
  --color-big-stone: #1A2A3D;
  --color-mercury: #E9E9E9;
  --color-white: #FFFFFF;
  --color-text: #1A2A3D;
  --color-text-light: #5A6A7D;

  /* Typography */
  --font-family: 'Jost', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;

  --font-size-h1-desktop: 48px;
  --font-size-h1-mobile: 32px;
  --font-size-h2-desktop: 36px;
  --font-size-h2-mobile: 24px;
  --font-size-h3: 24px;
  --font-size-body: 16px;
  --font-size-small: 14px;

  --line-height-heading: 1.2;
  --line-height-body: 1.6;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;
  --spacing-3xl: 96px;

  /* Layout */
  --container-max-width: 1200px;
  --container-padding: 24px;

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

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

  /* Breakpoints (for reference in media queries) */
  --breakpoint-tablet: 768px;
  --breakpoint-desktop: 992px;
}