body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
}

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem;
}

main {
    max-width: 800px;
    margin: auto;
    background: white;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1, h2, h3 {
    color: #fff;
}

#upload-form {
    margin-bottom: 20px;
}

#file-input, button {
    margin: 10px 0;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
    margin-top: 20px;
}

.image-grid img {
    width: 100%;
    height: auto;
    border: 1px solid #ddd;
}

#delete-all-btn {
    background-color: #ff4444;
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
}

#delete-all-btn:hover {
    background-color: #cc0000;
}

.image-placeholder {
    width: 100%;
    height: 200px; /* Adjust as needed */
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f0f0f0;
    border: 1px solid #ddd;
    color: #666;
    font-size: 1.2em;
}