:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
}

body {
    font-family: 'Times New Roman', serif;
    padding-top: 70px;
}

.bg-academic {
    background-color: var(--primary-color) !important;
}

.section-title {
    color: var(--primary-color);
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
    margin-bottom: 2rem;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    width: 2px;
    height: 100%;
    background: var(--accent-color);
}

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

.timeline-item::before {
    content: '';
    position: absolute;
    left: -5px;
    top: 5px;
    width: 16px;
    height: 16px;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    background: white;
}

.card {
    border: 1px solid rgba(0,0,0,.125);
    border-radius: 0.5rem;
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

.contact-item {
    display: flex;
    align-items: center;
    margin: 1rem 0;
    padding: 1rem;
    background: white;
    border-radius: 0.5rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-right: 1rem;
}

.contact-item a {
    color: var(--secondary-color);
    text-decoration: none;
}

@media (max-width: 768px) {
    .navbar-nav {
        text-align: center;
    }
    
    .timeline {
        padding-left: 1rem;
    }
}