:root{
  /* 4px base grid */
  --space-0:0;
  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-5:20px;
  --space-6:24px;
  --space-8:32px;
  --space-10:40px;
  --space-12:48px;
  --space-16:64px;
  --space-20:80px;
  --space-24:96px;
  --space-32:128px;

  /* Layout */
  --container-max:1200px;
  --container-narrow:760px;
  --gutter:24px;
  --gutter-lg:40px;
  --section-y:96px;          /* vertical rhythm between page sections */
  --section-y-sm:56px;

  /* Logo clear space = half the cap height of the E in the lockup.
     For a 40px-tall horizontal lockup that is ~14px on all sides. */
  --logo-clearspace:0.35em;
  --logo-min-height:36px;    /* ≈0.5in on screen at the horizontal lockup's proportions */
}