.timeline {
    position: relative;
    border-left: 2px solid var(--border-color);
    padding-left: 1.5rem;
    margin-left: 0.25rem;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-color);
    left: -2.05rem;
    top: 0.5rem;
    box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.15);
    transition: var(--transition);
}

.timeline-item:hover .timeline-marker {
    transform: scale(1.25);
    background: var(--accent-color);
    box-shadow: 0 0 0 6px rgba(15, 118, 110, 0.25);
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timeline-title {
    font-size: 1.3rem;
    margin-bottom: 0.25rem;
    color: var(--text-main);
}

.timeline-subtitle {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

@media (min-width: 576px) {
    .timeline {
        padding-left: 2rem;
        margin-left: 1rem;
    }
    .timeline-marker {
        left: -2.55rem;
    }
}