/* ===========================================================================
   Airlumn — Spacing & Layout
   4px base grid. Generous, cinematic rhythm — the brand likes air and scale.
   =========================================================================== */

: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:   2.5rem;    /* 40 */
  --space-8:   3rem;      /* 48 */
  --space-9:   4rem;      /* 64 */
  --space-10:  5rem;      /* 80 */
  --space-11:  6.5rem;    /* 104 */
  --space-12:  8rem;      /* 128 — section breathing room */

  /* --- Container widths ---------------------------------------------------- */
  --container-sm:  640px;
  --container-md:  860px;
  --container-lg:  1100px;
  --container-xl:  1280px;
  --container-2xl: 1480px;

  /* --- Section padding (vertical rhythm) ---------------------------------- */
  --section-y:      var(--space-12);
  --section-y-tight:var(--space-10);
  --gutter:         var(--space-6);
}