.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: #fff;
    margin: auto;
    padding: 20px;
    border-radius: 8px;
    max-width: 400px;
    text-align: center;
}

.close {
    float: right;
    font-size: 24px;
    cursor: pointer;
}

#proceedBtn {
    display: inline-block;
    padding: 12px 25px;
    background: #007bff;
    color: white;
    font-weight: bold;
    font-size: 16px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

#proceedBtn:hover:not(.disabled) {
    transform: translateY(-2px);
}

#proceedBtn.disabled {
    pointer-events: none;
    opacity: 0.5;
    background: #a0c4ff;
}