/* ============================================================
   River Runners — Spacing, radius, shadow, layout tokens
   ============================================================ */

:root {
  /* ---- Spacing (4px base grid) ---- */
  --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 ----
     Pills for CTAs; soft cards; the brand-guide card frame uses ~40px. */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;     /* image cards in the guide */
  --radius-xl: 40px;     /* large panels / hero cards */
  --radius-pill: 999px;  /* buttons, chips, tags */

  /* ---- Borders ---- */
  --border-width: 1px;
  --border-width-strong: 2px;

  /* ---- Shadows ----
     Restrained, cool-toned. Outdoor brand — keep it crisp, not glossy. */
  --shadow-xs: 0 1px 2px rgba(11, 11, 11, 0.06);
  --shadow-sm: 0 2px 6px rgba(11, 11, 11, 0.08);
  --shadow-md: 0 8px 24px rgba(11, 11, 11, 0.10);
  --shadow-lg: 0 18px 48px rgba(11, 11, 11, 0.16);
  --shadow-deep: 0 24px 60px rgba(14, 40, 69, 0.30); /* on dark-blue sections */
  --shadow-focus: 0 0 0 3px rgba(29, 118, 188, 0.45);

  /* ---- Image treatment ---- */
  --img-overlay-deep: linear-gradient(180deg, rgba(14,40,69,0) 0%, rgba(14,40,69,0.78) 100%); /* @kind other */
  --img-overlay-flat: rgba(11, 11, 11, 0.35); /* @kind other */

  /* ---- Layout ---- */
  --container-max: 1200px;  /* @kind other */
  --container-wide: 1320px; /* @kind other */
  --gutter: clamp(1rem, 4vw, 3rem); /* @kind spacing */

  /* ---- Motion ---- */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);   /* @kind other */
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1); /* @kind other */
  --dur-fast: 140ms;     /* @kind other */
  --dur-base: 220ms;     /* @kind other */
  --dur-slow: 380ms;     /* @kind other */
}