/* ============================================================
   SOLARLUX — SPACING, RADII, LAYOUT
   Precise architectural rhythm on a 4px base.
   Corners are near-square: Solarlux products are all slim,
   engineered profiles — radii stay tight (0–6px), never pill-round.
   ============================================================ */
:root {
  /* --- Spacing scale (4px base) --- */
  --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;

  /* --- Radii (kept tight — engineered, not soft) --- */
  --radius-none: 0;
  --radius-sm:   2px;
  --radius-md:   4px;   /* default: buttons, inputs, cards */
  --radius-lg:   6px;
  --radius-xl:   10px;  /* large media panels */

  /* --- Layout --- */
  --container-max:  1280px;
  --container-wide: 1440px;
  --gutter:         24px;
  --section-y:      var(--space-24);

  /* --- Borders --- */
  --border-hairline: 1px;
  --border-thick:    2px;
}