:root {
  /* Brand Colors */
  --scarlet: #C8102E;
  --scarlet-dark: #9A0C24;
  --navy: #1B3A6B;
  --navy-dark: #0F2547;
  --cream: #F5F1E7;
  --off-white: #FAFAFA;
  --white: #FFFFFF;
  --charcoal: #1A1A1A;
  --slate: #4A4A4A;
  --border: #E5E5E5;
  --success: #2E7D32;

  /* Typography */
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Inter', sans-serif;
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
  --text-xl: clamp(1.25rem, 1rem + 1vw, 1.75rem);
  --text-2xl: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  --text-3xl: clamp(2rem, 1.5rem + 2.5vw, 3.5rem);

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

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --container-max: 1280px;
  --container-padding: clamp(1rem, 3vw, 2rem);
  --header-height: 72px;
  --announcement-height: 40px;

  /* Borders & Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-dropdown: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-drawer: -4px 0 24px rgba(0, 0, 0, 0.15);

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

  /* Z-index scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-drawer: 400;
  --z-modal: 500;
}