body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    text-align: center;
    background-color: #f5f5f5;
}

.container {
    margin: 20px auto;
    width: 90%;
    max-width: 1000px;
}

.upload-area {
    border: 2px dashed #aaa;
    padding: 60px;
    background-color: #fff;
    cursor: pointer;
    position: relative;
    margin-bottom: 20px;
}

.upload-area input {
    opacity: 0;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    cursor: pointer;
}

.upload-area span {
    font-size: 1rem;
    color: #555;
}

#contact-sheet-container {
    display: flex;
    justify-content: center;
    margin: 20px auto;
}

.contact-sheet .image-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.contact-sheet {
    display: grid;
    grid-template-columns: repeat(5, 1fr); /* 5 images per row */
    gap: 15px;
    justify-items: center;
    padding: 10px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.contact-sheet img {
    width: 150px; /* Display size only */
    height: 150px; /* Display size only */
    border-radius: 10px;
    border: 1px solid #ccc;
    margin-top: 5px;
}

.contact-sheet .filename {
    font-size: 0.9rem;
    color: #333;
    word-break: break-word;
}

.download-btn {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 1rem;
    color: #fff;
    background-color: #007bff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.download-btn:disabled {
    background-color: #aaa;
    cursor: not-allowed;
}