.file-drop { position: relative; }
.file-drop.pickable { cursor: pointer;
                      transition: border-color var(--dur-pop) var(--ease-out), background var(--dur-pop) var(--ease-out); }
.file-drop.pickable:hover:not(.busy) { border-color: var(--acc); background: var(--acc-weak); }
.file-drop.pickable.busy { cursor: default; }

.drop-pic-paste {
  position: absolute; inset: 0;
  overflow: hidden;
  color: transparent; caret-color: transparent;
  outline: none;
  cursor: inherit;
}
.file-drop .drop-pic-pick { position: relative; pointer-events: none; }
.file-drop .drop-pic-pick button { pointer-events: auto; }
.drop-pic-ways { justify-content: center; align-items: center; }

.drop-pic.armed { border-color: var(--acc); background: var(--acc-weak); }
.drop-pic.busy { border-style: solid; }