/* Expandable Timeline Styles */
.tds-expandable-timeline {
    max-width: 1000px;
    margin: 0 auto;
}

.tds-expandable-category {
    margin-bottom: 15px;
}

.tds-expandable-date-group {
    margin-left: 30px;
    margin-bottom: 10px;
}

/* Tile Styles */
.tds-category-tile,
.tds-date-tile {
    background: #fff;
    border: 2px solid #0073aa;
    border-radius: 8px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.tds-category-tile:hover,
.tds-date-tile:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}

.tds-category-tile.active,
.tds-date-tile.active {
    background: #f0f6fc;
    border-color: #005a87;
}

.tds-tile-header {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.tds-category-title {
    margin: 0;
    color: #0073aa;
    font-size: 1.4em;
    flex: 1;
}

.tds-date-title {
    margin: 0;
    color: #005a87;
    font-size: 1.2em;
    flex: 1;
}

.tds-toggle-icon {
    font-size: 1.5em;
    font-weight: bold;
    color: #0073aa;
    margin: 0 15px;
    transition: transform 0.3s ease;
}

.tds-category-tile.active .tds-toggle-icon,
.tds-date-tile.active .tds-toggle-icon {
    transform: rotate(45deg);
    color: #005a87;
}

.tds-post-count {
    background: #0073aa;
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.9em;
    font-weight: bold;
}

.tds-category-tile.active .tds-post-count,
.tds-date-tile.active .tds-post-count {
    background: #005a87;
}

/* Content Areas */
.tds-category-content,
.tds-date-content {
    padding: 0 20px 20px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Timeline Items */
.tds-timeline-item {
    display: flex;
    margin: 15px 0;
    padding: 15px;
    background: #f9f9f9;
    border-radius: 6px;
    border-left: 4px solid #0073aa;
}

.tds-thumbnail {
    margin-right: 15px;
    flex-shrink: 0;
}

.tds-thumbnail img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
}

.tds-content {
    flex-grow: 1;
}

.tds-content h4,
.tds-content h5 {
    margin: 0 0 8px 0;
}

.tds-content h4 a,
.tds-content h5 a {
    text-decoration: none;
    color: #2c3338;
}

.tds-content h4 a:hover,
.tds-content h5 a:hover {
    color: #0073aa;
}

.tds-meta {
    font-size: 13px;
    color: #666;
    margin-bottom: 5px;
}

.tds-excerpt {
    font-size: 14px;
    line-height: 1.4;
    color: #555;
}

/* Responsive Design */
@media (max-width: 768px) {
    .tds-tile-header {
        padding: 15px;
        flex-direction: column;
        align-items: flex-start;
    }
    
    .tds-category-title,
    .tds-date-title {
        margin-bottom: 10px;
    }
    
    .tds-expandable-date-group {
        margin-left: 15px;
    }
    
    .tds-timeline-item {
        flex-direction: column;
    }
    
    .tds-thumbnail {
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .tds-thumbnail img {
        width: 100%;
        height: auto;
        max-width: 100px;
    }
}