.changelog-timeline {
    position: relative;
    max-width: 750px;
    margin: 0 auto;
    padding: 20px 0;
}

.changelog-timeline::after {
    content: '';
    position: absolute;
    width: 3px;
    background-color: rgba(255, 255, 255, 0.2);
    top: 0;
    bottom: 0;
    left: 40px;
}

.changelog-entry {
    padding: 10px 40px 30px 80px;
    position: relative;
}

.changelog-entry::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    right: auto;
    left: 31px;
    top: 28px;
    background-color: #1a1a1c;
    border: 3px solid #aaa;
    border-radius: 50%;
    z-index: 1;
}

.changelog-header {
    margin-bottom: 15px;
}

.changelog-version {
    font-size: 1.5em;
    font-weight: bold;
    color: #aaa;
    margin-right: 15px;
}

.changelog-date {
    font-size: 1em;
    color: #aaa;
}

.changelog-changes-list {
    list-style-type: none;
    padding-left: 0;
}

.changelog-change {
    display: flex;
    align-items: flex-start;
    margin-bottom: 10px;
}

.change-tag {
    flex-shrink: 0;
    padding: 4px 8px;
    border-radius: 5px;
    font-size: 0.8em;
    font-weight: bold;
    margin-right: 10px;
    color: #fff;
    width: 90px;
    text-align: center;
}

.change-tag.nouveau { background-color: #2980b9; }
.change-tag.amelioration { background-color: #27ae60; }
.change-tag.correction { background-color: #d35400; }
.change-tag.securite { background-color: #ac2516; }

.change-description {
    color: #ddd;
    line-height: 1.5;
}