body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #f0f0f0;
    min-height: 100vh;
    padding: 20px;
    overflow-x: auto;
}

.container {
    text-align: center;
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin: 0 auto;
    min-width: 1000px;
    display: inline-block;
}

.upload-container {
    margin: 20px 0;
}

#imageUpload {
    display: none;
}

.upload-container label {
    display: inline-block;
    padding: 10px 20px;
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
    border-radius: 5px;
}

#generateButton {
    padding: 24px 48px;
    font-size: 24px;
    background-color: #2196F3;
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    margin: 20px 0;
}

#generateButton:hover {
    background-color: #1976D2;
    transform: scale(1.05);
}

#generateButton:active {
    transform: scale(0.98);
}

#downloadLink {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #FF9800;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}

#memoryCanvas {
    max-width: 100%;
    border: 1px solid #ddd;
    background-color: #f9f9f9;
}

.month-upload-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    min-width: 1000px;
}

.month-upload-row {
    display: flex;
    justify-content: center;
    gap: 4px;
    width: 100%;
}

.month-upload-row.main-upload {
    width: 100%;
    justify-content: center;
}

.month-upload {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 200px;
    margin: 5px;
}

.month-upload label {
    margin-bottom: 10px;
}

.month-upload input[type="file"] {
    margin-bottom: 10px;
}

.image-preview {
    width: 150px;
    height: 100px;
    border: 1px solid #ddd;
    background-color: #f9f9f9;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.image-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
}

.button-container {
    margin: 20px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.download-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.download-message {
    color: #4CAF50;
    font-weight: bold;
    margin: 0;
}

.action-button {
    padding: 12px 24px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s;
}

#generateButton {
    background-color: #2196F3;
    color: white;
}

#generateButton:hover {
    background-color: #1976D2;
}

#downloadLink {
    background-color: #4CAF50;
    color: white;
}

#downloadLink:hover {
    background-color: #388E3C;
}

.name-input-container {
    margin: 20px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.name-input-container label {
    font-size: 16px;
    font-weight: bold;
}

#nameInput {
    padding: 8px 12px;
    font-size: 16px;
    border: 2px solid #ddd;
    border-radius: 5px;
    width: 200px;
    transition: border-color 0.3s;
}

#nameInput:focus {
    outline: none;
    border-color: #2196F3;
}

.month-frame {
    border: 2px solid #ddd;
    border-radius: 8px;
    padding: 10px;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
}

.month-frame.main-frame {
    border-color: #2196F3;
    background-color: #f5f9ff;
}

.month-label {
    font-weight: bold;
    margin-bottom: 8px;
    color: #333;
}

.file-select-button {
    display: inline-block;
    padding: 8px 16px;
    background-color: #4CAF50;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    margin-top: 8px;
    transition: background-color 0.3s;
}

.file-select-button:hover {
    background-color: #388E3C;
}

.month-upload input[type="file"] {
    display: none;
}

.image-preview {
    width: 150px;
    height: 100px;
    border: 1px solid #ddd;
    background-color: #f9f9f9;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    margin-bottom: 8px;
}

.image-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
}

.month-upload {
    margin: 10px;
}

.title-position-container {
    margin: 20px 0;
    padding: 15px;
    background-color: #f5f5f5;
    border-radius: 8px;
}

.position-label {
    font-weight: bold;
    margin: 0 0 10px 0;
    color: #333;
}

.position-options {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.position-option {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.position-option:hover {
    background-color: #e0e0e0;
}

.position-option input[type="radio"] {
    margin: 0;
}

.credits-button {
    padding: 12px 24px;
    font-size: 16px;
    background-color: #9C27B0;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
    margin: 10px;
}

.credits-button:hover {
    background-color: #7B1FA2;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    overflow-y: auto;
    z-index: 9999;
    /* 以下を追加 */
    width: 100%;
    height: 100%;
}

.modal-content {
    background-color: #fefefe;
    margin: 5vh auto;
    padding: 30px;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    position: relative;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.close-button {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    color: #666;
    cursor: pointer;
    transition: color 0.3s;
    line-height: 1;
    padding: 0 5px;
}

.close-button:hover {
    color: #000;
}

.modal::-webkit-scrollbar {
    width: 10px;
}

.modal::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}

.modal::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 5px;
}

.credits-section {
    margin: 20px 0;
    padding: 15px;
    background-color: #f8f8f8;
    border-radius: 8px;
}

.credits-section h3 {
    margin: 0 0 10px 0;
    color: #333;
    font-size: 1.2em;
}

.credits-section p {
    margin: 5px 0;
    color: #666;
}

.credits-footer {
    margin-top: 30px;
    text-align: center;
    padding-top: 20px;
    border-top: 2px solid #eee;
}

.credits-footer p {
    margin: 5px 0;
    color: #888;
}

.credits-footer p:last-child {
    font-weight: bold;
    color: #666;
}

@media (max-width: 768px) {
    .modal-content {
        margin: 3vh auto;
        padding: 20px;
        width: 95%;
    }

    .credits-section {
        padding: 10px;
    }
}

.info-box {
    background-color: #fff3e0;
    border-left: 4px solid #ff9800;
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.info-box p {
    margin: 5px 0;
    color: #666;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.warning-message {
    color: #d32f2f;
    font-size: 12px;
    margin-top: 5px;
    display: none;
}

.warning-message.show {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

.clear-button {
    padding: 12px 24px;
    font-size: 16px;
    background-color: #dc3545;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
    margin: 10px;
}

.clear-button:hover {
    background-color: #c82333;
}

.delete-button {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: #dc3545;
    color: white;
    border: none;
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    padding: 0;
    display: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.month-frame:hover .delete-button {
    display: block;
}

.delete-button:hover {
    background-color: #c82333;
}