.changelog {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.changelog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.changelog-header h1 {
    margin: 0;
    font-size: 2rem;
    color: var(--text-color);
}

.version-filter select {
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 0, 0, 0.1);
    background-color: var(--card-background);
    font-size: 0.9rem;
    outline: none;
}

.changelog-timeline {
    position: relative;
}

.timeline-container {
    position: relative;
    padding-left: 2rem;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
    opacity: 0.2;
}

.changelog-item {
    position: relative;
    margin-bottom: 3rem;
    padding: 1.5rem;
    background: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.changelog-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 1.5rem;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid var(--card-background);
}

.changelog-item.important::before {
    background: #ff9800;
}

.changelog-item.urgent::before {
    background: #f44336;
}

.changelog-date {
    font-size: 0.9rem;
    color: #6e6e73;
    margin-bottom: 0.5rem;
}

.changelog-version {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    color: white;
    border-radius: 1rem;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.changelog-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.changelog-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.changelog-content li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.changelog-content li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.changelog-content .feature::before {
    content: '✨';
}

.changelog-content .fix::before {
    content: '🐛';
}

.changelog-content .improvement::before {
    content: '⚡️';
}

.changelog-content .breaking::before {
    content: '💥';
}