.bio-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: calc(var(--spacing-unit) * 3);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.bio-text p {
    margin-bottom: var(--spacing-unit);
}

.bio-image img {
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.timeline {
    list-style: none;
    position: relative;
    padding-left: 50px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-border);
}

.timeline li {
    position: relative;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.timeline li::before {
    content: '';
    position: absolute;
    left: -54px;
    top: 5px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 2px solid white;
    box-shadow: 0 0 0 2px var(--gray-border);
}

.timeline .year {
    position: absolute;
    left: -130px;
    top: 0;
    font-weight: 500;
    color: var(--primary-color);
    width: 70px;
    text-align: right;
}

.timeline .content {
    background: var(--gray-light);
    padding: calc(var(--spacing-unit) * 1.5);
    border-radius: 8px;
}

.timeline h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.timeline p {
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.timeline p:last-child {
    margin-bottom: 0;
}

.membership-list {
    list-style-position: inside;
    color: var(--text-dark);
}

.membership-list li {
    margin-bottom: 0.5rem;
}

section {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

section h3 {
    color: var(--primary-color);
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.cv-download {
    background: var(--gray-light);
    padding: calc(var(--spacing-unit) * 2);
    border-radius: 8px;
    text-align: center;
}

@media (max-width: 768px) {
    .bio-content {
        grid-template-columns: 1fr;
    }
    
    .bio-image {
        text-align: center;
    }
    
    .timeline {
        padding-left: 20px;
    }
    
    .timeline::before {
        display: none;
    }
    
    .timeline li::before {
        left: -24px;
    }
    
    .timeline .year {
        position: static;
        display: block;
        margin-bottom: 0.5rem;
        text-align: left;
        width: auto;
    }
}