.ad-container {
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
    text-align: center;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    background: #fff;
}

.image-gallery {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.thumbnail {
    cursor: pointer;
    max-width: 150px;
    transition: transform 0.3s ease;
}

.thumbnail:hover {
    transform: scale(1.05);
}

.contact-button,
.login-button {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}

.contact-button {
    background-color: #28a745;
}

.login-button {
    background-color: #40c7cc;
}

.modal {
    display: none;
    position: fixed;
    z-index: 999;
    padding-top: 60px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.8);
}

.modal-content {
    display: block;
    margin: auto;
    max-width: 90%;
}

.close {
    position: absolute;
    top: 20px;
    right: 40px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
}