/* Born Mtn Club — spacing & layout.
   Print-derived: the manual is built on generous margins, a single hairline rule
   under each page title, and wide vertical rhythm. Interfaces inherit that. */
:root{
  --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; --space-40:160px;

  /* Section rhythm */
  --section-y:var(--space-32);
  --section-y-tight:var(--space-20);
  --block-gap:var(--space-8);
  --stack-gap:var(--space-4);

  /* Layout */
  --page-max:1280px;
  --measure:64ch; /* @kind other */
  --measure-narrow:46ch; /* @kind other */
  --gutter:var(--space-6);
  --page-pad-x:var(--space-10);
  --page-pad-x-lg:var(--space-20);

  /* Control sizing */
  --control-h-sm:36px;
  --control-h:48px;
  --control-h-lg:58px;
  --control-pad-x:var(--space-8);
  --tap-min:44px;
}