.explore-header {
    padding: 120px 5% 60px;
    background: linear-gradient(to bottom, #003366, #005599);
    color: white;
    text-align: center;
}

.explore-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.timeline {
    position: relative;
    padding: 4rem 0;
    background: #f5f5f5;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #003366;
    transform: translateX(-50%);
}

.timeline-item {
    margin: 2rem 0;
    width: 100%;
    padding: 0 3rem;
}

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

.timeline-item:nth-child(even) {
    text-align: left;
}

.timeline-content {
    display: inline-block;
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    max-width: 500px;
    position: relative;
}

.timeline-date {
    position: absolute;
    top: -30px;
    background: #003366;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

.timeline-item:nth-child(odd) .timeline-date {
    right: 0;
}

.timeline-content img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.timeline-content h3 {
    color: #003366;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .timeline::before {
        left: 2rem;
    }
    
    .timeline-item {
        text-align: left !important;
        padding-left: 4rem;
        padding-right: 1rem;
    }
    
    .timeline-item:nth-child(odd) .timeline-date {
        right: auto;
    }
}