.datepicker {
    position: absolute;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.datepicker.open {
    opacity: 1;
    pointer-events: auto;
}

.datepicker-bottom {
    transform-origin: top;
}

.datepicker-top {
    transform-origin: bottom;
}