/* ==========================================================================
   variables.css  |  structural tokens only
   Colours live in css/themes/<theme>.css, fonts in css/fonts.css.
   ========================================================================== */

:root {
  /* spacing */
  --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: 4.5rem;
  --space-9: 7rem;

  --gutter: clamp(1.25rem, 5vw, 4.5rem);
  --section-pad: clamp(5rem, 13vw, 10rem);
  --measure: 52ch;
  --max-width: 84rem;
  --nav-h: calc(3.5rem + env(safe-area-inset-top));

  /* radii: cards are square, buttons are round, the map keeps its arch */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --radius-full: 999px;

  /* fluid type scale (nothing under 14px) */
  --step--1: clamp(0.875rem, 0.85rem + 0.15vw, 1rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --step-1: clamp(1.3rem, 1.15rem + 0.7vw, 1.75rem);
  --step-2: clamp(1.7rem, 1.35rem + 1.6vw, 2.8rem);
  --step-3: clamp(2.4rem, 1.7rem + 3.2vw, 4.6rem);
  --step-4: clamp(3.2rem, 2rem + 5.6vw, 7.5rem);

  /* motion */
  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);      /* entrances, settling */
  --ease-wipe: cubic-bezier(0.77, 0, 0.18, 1);     /* wipes and transitions */
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 200ms;
  --dur-base: 500ms;
  --dur-slow: 1100ms;

  /* layers */
  --z-date: 2;
  --z-nav: 50;
  --z-cursor: 95;
  --z-lightbox: 100;
  --z-envelope: 200;
}