body {
    font-family: Arial;
    background: #f4f6f9;
}

#dropZone {
    border: 2px dashed #999;
    padding: 40px;
    text-align: center;
    background: white;
    margin-bottom: 20px;
    transition: 0.3s;
}

#dropZone.hover {
    background: yellow;
    /*background: #e8f0ff;*/
    border-color: #4a90e2;
}

.photo {
    display: inline-block;
    margin: 10px;
}

.photo img {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.2s;
}

.photo img:hover {
    transform: scale(1.05);
}

#overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.85);
    justify-content: center;
    align-items: center;
}

#overlay img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
}