/* Timeline Styles */

.timeline-section {
    background: transparent;
    padding: 6rem 2rem;
    position: relative;
    z-index: 1;
}

.timeline {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--ai-gradient);
    transform: translateX(-50%);
    z-index: 1;
}

.timeline-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-content {
    width: 45%;
    background: var(--dark-card);
    border: 1px solid var(--border);
    padding: 1.25rem;
    border-radius: 24px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.timeline-content:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px var(--card-shadow, rgba(0, 0, 0, 0.15));
}

.timeline-year {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--ai-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--light);
    margin-bottom: 0.75rem;
}

.timeline-description {
    color: var(--gray);
    line-height: 1.6;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--dark);
    border: 4px solid var(--primary);
    border-radius: 50%;
    z-index: 2;
}

/* Mobile Timeline */
@media (max-width: 768px) {
    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        flex-direction: column !important;
        margin-left: 60px;
    }

    .timeline-content {
        width: 100%;
    }

    .timeline-dot {
        left: 30px;
    }
}