/* =====================================================================
   REFINED ENHANCEMENTS (optional layer)
   Loaded AFTER style.css. Purely additive — safe to remove.

   TO TURN OFF: remove the <link ... enhance.css> line from each .html
   page. The small header-shrink script in js/main.js is harmless if left in.
   ===================================================================== */

/* Single subtle ambient glow — quiet depth, nothing more */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(720px 480px at 12% 0%, rgba(47,111,237,.10), transparent 70%);
}

/* Cards: 1px border + subtle hover, no glass/blur */
.pillar,
.card {
  background: var(--card);
  border: 1px solid var(--line);
}
.pillar:hover {
  transform: translateY(-3px);
  border-color: rgba(90,139,255,.45);
  box-shadow: 0 12px 32px -14px rgba(0,0,0,.55);
}