.timeline {
    position: relative;
    padding-left: 2.5rem;
    border-left: 3px solid #dee2e6;
}

.timeline-item {
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-2.5rem - 6px);
    top: 1.1rem;
    width: 13px;
    height: 13px;
    background: #0d6efd;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 0 0 3px #dee2e6;
}

.timeline-icon {
    position: relative;
    z-index: 2;
}

.timeline-icon .badge {
    font-size: 1.3rem;
    background: linear-gradient(135deg, #0d6efd, #6610f2);
    box-shadow: 0 0 10px rgba(13, 110, 253, 0.3);
}

.timeline-content {
    flex: 1;
}

@media (min-width: 768px) {
    .timeline {
        padding-left: 3rem;
    }

    .timeline-item::before {
        left: calc(-3rem - 6px);
        top: 1.1rem;
    }

    .timeline-content {
        padding-top: 0.3rem;
    }
}