/**
 * Design tokens approximating CIT Bank visual language.
 * Finalize with authorized brand guidelines before production.
 */
:root {
  /* Brand */
  --color-primary: #0b2c4a;
  --color-primary-dark: #071c30;
  --color-primary-light: #163a5c;
  --color-secondary: #0e7c7b;
  --color-secondary-dark: #0a5f5e;
  --color-secondary-light: #14a3a1;
  --color-accent: #c4a35a;
  --color-accent-dark: #a4853f;

  /* Surfaces */
  --color-background: #ffffff;
  --color-surface: #f5f7f9;
  --color-surface-elevated: #ffffff;
  --color-surface-dark: #0b2c4a;
  --color-hero-overlay: rgba(7, 28, 48, 0.55);

  /* Text */
  --color-text: #1a2330;
  --color-text-inverse: #ffffff;
  --color-muted: #5a6573;
  --color-link: #0e7c7b;
  --color-link-hover: #0a5f5e;

  /* Borders & states */
  --color-border: #d5dde5;
  --color-border-strong: #aeb9c5;
  --color-focus: #0e7c7b;
  --color-success: #16834a;
  --color-warning: #b07a12;
  --color-error: #b42318;
  --color-info: #175cd3;

  /* Typography */
  --font-sans: "Source Sans 3", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Source Sans 3", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 1.875rem;
  --fs-3xl: 2.25rem;
  --fs-4xl: clamp(2.25rem, 4vw, 3rem);
  --fs-5xl: clamp(2.75rem, 5vw, 3.5rem);

  --lh-tight: 1.2;
  --lh-snug: 1.35;
  --lh-normal: 1.6;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* Layout */
  --container-width: 72rem;
  --container-narrow: 44rem;
  --header-height: 4.5rem;
  --announcement-height: 2.5rem;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;

  --shadow-sm: 0 1px 2px rgba(11, 44, 74, 0.06);
  --shadow-md: 0 4px 12px rgba(11, 44, 74, 0.08);
  --shadow-lg: 0 12px 32px rgba(11, 44, 74, 0.12);

  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-toast: 400;

  --transition-fast: 150ms ease;
  --transition-base: 220ms ease;
}