.article-container {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: flex-start;
    margin-top: 40px;
    padding: 0 20px;
}

.article-content {
    width: 65vw;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-left: 50px;
}

.article-sidebar {
    width: 30vw;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.article-sidebar img {
    margin-top: 20px;
    height: 250px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.article-header {
    margin-bottom: 20px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 20px;
    width: 100%;
}

.article-title {
    font-size: 24px;
    font-weight: bold;
    color: #303360;
    margin-bottom: 10px;
}

.article-authors {
    font-size: 16px;
    font-style: italic;
    color: #555;
    margin-bottom: 10px;
}

.article-meta {
    font-size: 14px;
    color: #777;
    margin-bottom: 10px;
}

.article-meta a {
    color: #303360;
    text-decoration: none;
}

.article-abstract {
    margin-bottom: 30px;
    text-align: justify;
}

.article-abstract h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
    border-bottom: 2px solid #ce6738;
    display: inline-block;
}

.article-keywords {
    margin-bottom: 20px;
    font-size: 14px;
}

.article-keywords strong {
    color: #333;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    background-color: #303360;
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s;
    margin-top: 10px;
}

.download-btn:hover {
    background-color: #163085;
}

.download-btn img {
    height: 20px;
    margin-right: 10px;
    filter: brightness(0) invert(1);
}

.article-references {
    /* margin-top: 40px; */
    width: 100%;
}

.article-references h3 {
    font-size: 18px;
    color: #333;
    /* margin-bottom: 15px; */
    border-bottom: 2px solid #ce6738;
    display: inline-block;
}

.article-references ol {
    padding-left: 20px;
}

.article-references li {
    /* margin-bottom: 10px; */
    font-size: 14px;
    color: #444;
}

.read-more-but {
    font-size: 12px;
    color: #303360;
    cursor: pointer;
    transition: background-color 0.3s;
    margin-top: 10px;
}

.read-more {
    font-size: 12px;
    display: none;
    flex-direction: column;
}

.read-more p {
    margin-bottom: 5px;
    /* font-size: 14px; */
}

.timeline {
    display: flex;
    flex-direction: row;
    gap: 5px;
    margin-top: 10px;
}

@media (max-width: 768px) {
    .article-container {
        flex-direction: column;
    }

    .article-content {
        width: 100%;
        margin-left: 0;
    }


    .article-sidebar {
       display: none;
    }
}