.timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    width: 2px;
    background: var(--primary-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item.left {
    left: 0;
}

.timeline-item.right {
    left: 50%;
}

.timeline-content {
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    position: relative;
    border: 1px solid rgba(74, 144, 226, 0.2);
    backdrop-filter: blur(5px);
}

.timeline-content::after {
    content: '';
    position: absolute;
    width: 15px;
    height: 15px;
    background: var(--primary-color);
    border-radius: 50%;
    top: 25px;
}

.left .timeline-content::after {
    right: -48px;
}

.right .timeline-content::after {
    left: -48px;
}

.timeline-date {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 5px;
}

.timeline-location {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.tag {
    background: rgba(74, 144, 226, 0.1);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
}

@media (max-width: 768px) {
    .timeline::before {
        left: 31px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }

    .timeline-item.right {
        left: 0;
    }

    .timeline-content::after {
        left: -37px !important;
    }
}