/* ============================================================
   Quayside — Effects: shadows, motion, layering
   Fresh, sharp, cool. Glass and water stand in for texture —
   no grain, no warm tint.
   ============================================================ */

:root {
  /* ---- Shadows (cool-neutral, low + deliberate) ---- */
  --shadow-xs:  0 1px 2px rgba(18,19,21,0.06);
  --shadow-sm:  0 1px 3px rgba(18,19,21,0.08), 0 1px 2px rgba(18,19,21,0.05);
  --shadow-md:  0 4px 14px rgba(18,19,21,0.08), 0 2px 4px rgba(18,19,21,0.05);
  --shadow-lg:  0 12px 32px rgba(18,19,21,0.12), 0 4px 8px rgba(18,19,21,0.06);
  --shadow-xl:  0 24px 60px rgba(18,19,21,0.16);
  --shadow-inset: inset 0 1px 0 rgba(255,255,255,0.5);

  /* ---- Glass (water/window transparency + blur — the core motif) ---- */
  --glass-blur:     18px; /* @kind other */
  --glass-blur-sm:  10px; /* @kind other */
  --glass-bg-light: rgba(255, 255, 255, 0.55);  /* frosted white, over light/photo surfaces */
  --glass-bg-dark:  rgba(22, 23, 26, 0.55);     /* frosted ink, over dark/photo surfaces */
  --glass-bg-stone: rgba(127, 129, 119, 0.30);  /* stone-tinted glass */
  --glass-border:      1px solid rgba(255,255,255,0.32); /* @kind other */
  --glass-border-dark: 1px solid rgba(255,255,255,0.14); /* @kind other */
  --glass-sheen: linear-gradient(155deg, rgba(255,255,255,0.4), rgba(255,255,255,0) 45%); /* @kind other */

  /* Focus */
  --shadow-focus: 0 0 0 3px rgba(127,129,119,0.35);

  /* ---- Motion ---- */
  --ease-out:   cubic-bezier(0.22, 0.61, 0.36, 1); /* @kind other */
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1); /* @kind other */
  --ease-soft:  cubic-bezier(0.33, 1, 0.68, 1); /* @kind other */
  --dur-fast:   120ms; /* @kind other */
  --dur-base:   220ms; /* @kind other */
  --dur-slow:   420ms; /* @kind other */

  /* ---- Z layers ---- */
  --z-base:     0; /* @kind other */
  --z-raised:   10; /* @kind other */
  --z-sticky:   100; /* @kind other */
  --z-overlay:  1000; /* @kind other */
  --z-modal:    1100; /* @kind other */
  --z-toast:    1200; /* @kind other */
}

::selection { background: var(--selection-bg); color: var(--text-strong); }