.timeline-section {
    background-color: var(--bg-primary);
    padding: 5rem 2rem;
    transition: background-color 0.3s ease;
}

.timeline-container {
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-title {
    text-align: center;
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4rem;
}

.timeline {
    position: relative;
    padding-left: 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 100px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: rgba(245, 169, 98, 0.3);
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 3rem;
    position: relative;
}

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

.timeline-year {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: rgba(245, 169, 98, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: #f5a962;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
    margin-right: 3rem;
}

.timeline-content {
    flex: 1;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem 2rem;
    box-shadow: 0 2px 4px var(--shadow);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.timeline-description {
    font-size: 1.125rem;
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .timeline-section {
        padding: 4rem 1.5rem;
    }

    .timeline-title {
        font-size: 2.5rem;
        margin-bottom: 3rem;
    }

    .timeline::before {
        left: 40px;
    }

    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 2.5rem;
    }

    .timeline-year {
        width: 60px;
        height: 60px;
        font-size: 1rem;
        margin-right: 0;
        margin-bottom: 1.5rem;
    }

    .timeline-content {
        width: 100%;
        margin-left: 0;
        padding: 1.25rem 1.5rem;
    }

    .timeline-description {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .timeline-title {
        font-size: 2rem;
    }

    .timeline-year {
        width: 50px;
        height: 50px;
        font-size: 0.875rem;
    }

    .timeline-content {
        padding: 1rem 1.25rem;
    }

    .timeline-description {
        font-size: 0.9375rem;
    }
}