.request-btn[disabled] {
    position: relative;
    cursor: not-allowed;
}
.request-btn[disabled]::after {
    content: attr(data-tooltip);
    position: absolute;
    top: -35px;
    left: 50%;
    transform: translateX(-50%);
    background: #e91e63;
    color: white;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 10;
}
.request-btn[disabled]:hover::after {
    opacity: 1;
}