.placed-container{position:absolute;border:2px solid #3b82f6;background:rgba(59,130,246,.8);color:#fff;cursor:move;text-align:center;font-weight:500;border-radius:6px;transition:transform .3s ease,border-color .2s ease,box-shadow .2s ease;user-select:none;touch-action:none;animation:dropAnimation .3s ease}.placed-container.selected{border-color:#ef4444;box-shadow:0 0 12px rgba(239,68,68,.5);transform:scale(1.03);z-index:10}