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

.container {
    max-width: 800px;
    margin: auto;
    background: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

#chirashi-viewer {
    margin-bottom: 20px;
}

#upload-section {
    margin-top: 20px;
}

#uploadForm input[type="file"],
#uploadForm input[type="text"] {
    margin-bottom: 10px;
    width: calc(100% - 22px);
}

#uploadForm button {
    background-color: #5cb85c;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

#uploadForm button:hover {
    opacity: 0.9;
}

#timeline {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.chirashi {
    background: #fff;
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

.chirashi img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
}