/* Timeline Styles */

.timeline-controls {
    margin-bottom: 30px;
    padding: 20px;
    background: var(--card-background);
    border-radius: 8px;
}

.timeline-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-btn {
    padding: 8px 16px;
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 600;
}

.filter-btn:hover {
    background: var(--primary-color);
    color: var(--text-color);
}

.filter-btn.active {
    background: var(--primary-color);
    color: var(--text-color);
}

.timeline-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
}

.timeline-year {
    margin-bottom: 40px;
}

.timeline-year h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

.timeline-month {
    background: var(--card-background);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    position: relative;
    animation: fadeIn 0.5s ease-in-out;
}

.timeline-month h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.timeline-month ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.timeline-event {
    padding: 15px;
    margin-bottom: 10px;
    background: var(--background-light);
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    transition: transform 0.3s ease;
}

.timeline-event:hover {
    transform: translateX(10px);
}

.timeline-date {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 14px;
}

.timeline-description {
    color: var(--text-color);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .timeline-filters {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 10px;
        -webkit-overflow-scrolling: touch;
    }

    .filter-btn {
        flex: 0 0 auto;
        white-space: nowrap;
    }

    .timeline-month {
        padding: 15px;
    }

    .timeline-year h2 {
        font-size: 24px;
    }

    .timeline-month h3 {
        font-size: 20px;
    }

    .timeline-event {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .timeline-container {
        padding: 10px;
    }

    .timeline-controls {
        padding: 15px;
    }

    .filter-btn {
        padding: 6px 12px;
        font-size: 12px;
    }
}