.content-types {
    background-color: #f8f9fa;
    padding: 80px 20px;
}

.content-types .container {
    max-width: 1200px;
    margin: 0 auto;
}

.content-types h2 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 2.5rem;
    color: #2c3e50;
    font-weight: 700;
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px auto;
    font-size: 1.1rem;
    line-height: 1.6;
    color: #555;
    padding: 0 10px;
}

/* The Grid (2 Columns) */
.timeline-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

/* The Vertical Line Column */
.timeline-column {
    position: relative;
    padding-left: 40px;
    border-left: 2px solid #e0e0e0;
}

/* The Item Wrapper */
.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

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

/* The Circular Marker (Number) */
.timeline-marker {
    position: absolute;
    left: -56px;
    top: 0;
    width: 32px;
    height: 32px;
    background-color: #fff;
    border: 2px solid #1460be;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.85rem;
    color: #1460be;
    z-index: 1;
    box-shadow: 0 0 0 4px #f8f9fa;
    transition: all 0.3s ease;
}

/* The Content Card */
.timeline-card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid transparent;
}

.timeline-card h3 {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.25rem;
    color: #2c3e50;
}

.timeline-card p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #636e72;
}

/* Hover Effects */
.timeline-item:hover .timeline-marker {
    background-color: #1460be;
    color: white;
    transform: scale(1.1);
}

.timeline-item:hover .timeline-card {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-color: #e0e0e0;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .content-types {
        padding: 60px 15px;
    }

    .content-types h2 {
        font-size: 1.8rem;
    }

    .section-intro {
        font-size: 0.95rem;
        margin-bottom: 40px;
    }

    .timeline-container {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .timeline-column {
        border-left: 2px solid #e0e0e0;
        margin-bottom: 40px;
        padding-left: 30px;
    }
    
    .timeline-column:last-child {
        margin-bottom: 0;
    }
    
    .timeline-marker {
        left: -46px;
    }

    .timeline-card {
        padding: 20px;
    }

    .timeline-card h3 {
        font-size: 1.1rem;
    }

    .timeline-card p {
        font-size: 0.9rem;
    }
}