.history-timeline {
    position: relative;
    overflow: hidden;
}

.timeline {
    position: relative;
    padding: 2rem 0;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: var(--gradient-primary);
    top: 0;
}

.timeline-item {
    position: relative;
    padding: 2rem 0;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 55%;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 55%;
}

.timeline-date {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: #fff;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 700;
    top: 2rem;
    z-index: 2;
}

.timeline-content {
    background: #fff;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    position: relative;
}

.timeline-content h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    margin: 0;
    color: var(--text-light);
}