body {
    background-color: #f4f4f4;
}

.section-title {
    font-weight: 700;
    letter-spacing: 1px;
}

/* Timeline */
.timeline {
    position: relative;
    padding: 3rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: #dcdcdc;
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
}

.timeline-img {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    border: 6px solid #fff;
    box-shadow: 0 0 0 2px #e0e0e0;
    z-index: 2;
    position: relative;
}

.timeline-content {
    padding: 1.5rem;
}

.timeline-content h4 {
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .timeline::before {
        left: 8px;
    }

    .timeline-img {
        margin-left: 0;
    }
}