/* dropdown on hover */
.nav-item.dropdown:hover > .dropdown-menu {
    display: block;
    margin-top: 0;
}

.nav-item.dropdown:hover > .nav-link.dropdown-toggle {
    color: #fff;
}

html, body {
    height: 100%;
    margin: 0;
    display: flex;
    flex-direction: column;
    background-color: #fafafa;
}

main {
    flex: 1;
}

.timeline {
    position: relative;
    padding-left: 30px;
    border-left: 3px solid #0d6efd; /* Bootstrap primary color */
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 2px;
    width: 20px;
    height: 20px;
    background-color: #0d6efd;
    border-radius: 50%;
    border: 3px solid white;
}

.timeline-date {
    font-weight: 600;
    color: #0d6efd;
}

.hero {
    padding: 10em 0;
}

section {
    margin-top: 50px;
}

header {
    position: sticky;
    transition: 0.3s ease;  
    z-index: 999;
}