/* ===========================================================================
   Ashby Lumber — Spacing, Radius, Border, Shadow, Layout
   Calm, generous whitespace. Single-column reading measure.
   =========================================================================== */

:root {
  /* --- Spacing scale (4px base) --- */
  --space-0:   0;
  --space-1:   0.25rem;  /* 4 */
  --space-2:   0.5rem;   /* 8 */
  --space-3:   0.75rem;  /* 12 */
  --space-4:   1rem;     /* 16 */
  --space-5:   1.5rem;   /* 24 */
  --space-6:   2rem;     /* 32 */
  --space-7:   3rem;     /* 48 */
  --space-8:   4rem;     /* 64 */
  --space-9:   6rem;     /* 96 */

  /* --- Radii — restrained; heritage, not playful --- */
  --radius-none: 0;
  --radius-sm:   3px;   /* inputs, tags */
  --radius-md:   5px;   /* cards, buttons */
  --radius-lg:   8px;   /* callout panels */
  --radius-pill: 999px;

  /* --- Borders --- */
  --border-hairline: 1px solid var(--border-default);
  --border-rule:     1px solid var(--light-grey);
  --bar-width:       4px;    /* green section bar thickness */

  /* --- Shadows — soft, low, paper-like. Never neon/colored. --- */
  --shadow-sm: 0 1px 2px rgba(26, 26, 26, 0.06);
  --shadow-md: 0 2px 8px rgba(26, 26, 26, 0.08);
  --shadow-lg: 0 8px 24px rgba(26, 26, 26, 0.10);

  /* --- Layout --- */
  --measure:        68ch;   /* single-column reading width */
  --measure-wide:   88ch;
  --page-margin:    var(--space-7);
  --content-max:    1100px;

  /* --- Motion — quiet, no bounce --- */
  --ease-standard: cubic-bezier(0.4, 0.0, 0.2, 1); /* @kind other */
  --duration-fast: 120ms; /* @kind other */
  --duration-med:  200ms; /* @kind other */
}