/* Original Frame utilities remain the visual baseline. These rules only manage state. */
.vell-managed-frame {
  box-sizing: border-box;
  min-width: 0;
  min-height: 0;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 140ms ease, visibility 140ms;
}
/* Showing must expose focus targets immediately. A visibility transition can
   still compute hidden during mounted/nextTick/requestAnimationFrame focus. */
.vell-managed-frame.vell-window-visible { visibility: visible; opacity: 1; pointer-events: auto; transition: opacity 140ms ease; }
.vell-managed-frame .vell-window-titlebar { flex: 0 0 auto; min-width: 0; touch-action: none; }
.vell-managed-frame[data-window-active="true"] .vell-window-titlebar { box-shadow: inset 0 -2px #00ffff; }
.vell-managed-frame .vell-window-title { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.vell-managed-frame .vell-window-controls { display: flex; flex: 0 0 auto; align-items: center; gap: 0; }
.vell-managed-frame .vell-window-control { display: grid; place-items: center; padding: 5px; color: #110aff; background: transparent; border: 0; line-height: 1; }
.vell-managed-frame .vell-window-close { padding: 8px; }
.vell-managed-frame .vell-window-control:hover { background: #00ffff; }
.vell-managed-frame .vell-window-control:active { background: #bcb9ff; }
.vell-managed-frame .vell-window-control:focus-visible { outline: 2px solid #110aff; outline-offset: -3px; }
.vell-managed-frame .vell-window-body, .vell-managed-frame .vell-window-main { min-width: 0; min-height: 0; }
.vell-managed-frame .vell-window-body { overflow: hidden; }
.vell-managed-frame .vell-window-resize { touch-action: none; }
.vell-managed-frame[data-window-mobile="true"] .vell-window-control { padding: 8px; }
.vell-managed-frame[data-window-mobile="true"] .vell-window-main { overflow: auto; overscroll-behavior: contain; }
@media (prefers-reduced-motion: reduce) {
  .vell-managed-frame { transition: none; }
}