/* ========== LEBENSLAUF TIMELINE ========== */
.lebenslauf-timeline {
    position: relative;
    max-width: 900px;
    margin: 40px auto;
    padding: 20px 0;
}

.lebenslauf-timeline:before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, #3498db, #e74c3c);
}

.timeline-year-marker {
    position: relative;
    margin: 50px 0 20px 0;
    padding-left: 80px;
    font-size: 2rem;
    font-weight: 800;
    color: #2c3e50;
    background: #f8f9fa;
    padding: 15px 20px 15px 80px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.timeline-year-marker:before {
    content: '';
    position: absolute;
    left: 44px;
    top: 50%;
    width: 16px;
    height: 16px;
    background: #e74c3c;
    border-radius: 50%;
    transform: translateY(-50%);
    border: 4px solid white;
    box-shadow: 0 0 0 3px #e74c3c;
}

.timeline-item {
    position: relative;
    margin-bottom: 25px;
    padding-left: 80px;
    opacity: 1;
    transition: all 0.3s ease;
}

.timeline-item.hidden {
    opacity: 0.3;
}

.timeline-dot {
    position: absolute;
    left: 46px;
    top: 20px;
    width: 12px;
    height: 12px;
    background: #3498db;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 3px #3498db;
    z-index: 2;
}

.timeline-content {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    border-left: 5px solid #3498db;
    transition: transform 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.timeline-content h3 {
    margin: 0 0 10px 0;
    color: #2c3e50;
    font-size: 1.4rem;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

.timeline-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.timeline-date {
    background: #3498db;
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-weight: 600;
}

.timeline-category {
    background: #f1f3f4;
    color: #555;
    padding: 5px 12px;
    border-radius: 20px;
    font-weight: 500;
}

.timeline-excerpt {
    color: #555;
    line-height: 1.7;
    margin-bottom: 15px;
}

.timeline-read-more {
    display: inline-block;
    color: #3498db;
    text-decoration: none;
    font-weight: 600;
    padding: 8px 16px;
    border: 2px solid #3498db;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.timeline-read-more:hover {
    background: #3498db;
    color: white;
}

/* ========== FILTER BUTTONS ========== */
.lebenslauf-filter {
    background: white;
    padding: 25px;
    border-radius: 12px;
    margin: 30px auto;
    max-width: 900px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
}

.lebenslauf-filter h3 {
    margin-top: 0;
    margin-bottom: 20px;
    color: #2c3e50;
    text-align: center;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.filter-btn {
    padding: 10px 20px;
    background: #f8f9fa;
    border: 2px solid #dee2e6;
    border-radius: 30px;
    color: #495057;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: #3498db;
    color: white;
    border-color: #3498db;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .lebenslauf-timeline:before {
        left: 30px;
    }
    
    .timeline-year-marker,
    .timeline-item {
        padding-left: 60px;
    }
    
    .timeline-year-marker:before {
        left: 24px;
    }
    
    .timeline-dot {
        left: 26px;
    }
    
    .timeline-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .filter-buttons {
        flex-direction: column;
    }
    
    .filter-btn {
        width: 100%;
        text-align: center;
    }
}