/* ==========================================================================
   AIROVISTA Design System — CSS Custom Properties
   ========================================================================== */

:root {
  /* Colors */
  --navy: #0F2B4C;
  --blue: #0059CF;
  --blue-light: #E8F1FD;
  --hero-blue: #A7C4F0;
  --teal-tint: #F0FAFB;
  --teal: #0891B2;
  --teal-dark: #0E7490;
  --surface: #F7F9FB;
  --white: #FFFFFF;
  --slate: #475569;
  --slate-light: #64748B;
  --border: #E2E8F0;
  --green: #059669;
  --deep: #0A1929;
  --deep-text: #F1F5F9;

  /* Typography — Families */
  --font-heading: 'DM Sans', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Typography — Sizes */
  --text-hero: 3rem;
  --text-page: 2.25rem;
  --text-section: 1.75rem;
  --text-subsection: 1.375rem;
  --text-lg: 1.125rem;
  --text-base: 1rem;
  --text-sm: 0.875rem;
  --text-micro: 0.75rem;

  /* Typography — Line Heights */
  --lh-hero: 1.1;
  --lh-page: 1.2;
  --lh-section: 1.25;
  --lh-subsection: 1.3;
  --lh-body: 1.6;
  --lh-sm: 1.5;
  --lh-micro: 1.4;

  /* Spacing (base 8px) */
  --space-xxs: 4px;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;

  /* Radii */
  --radius-btn: 6px;
  --radius-card: 8px;

  /* Transitions */
  --transition-fast: 200ms ease;
  --transition-base: 300ms ease;
}