/* Sources section collapse/expand functionality */

.sources-section {
    margin-top: 40px;
    border: 1px solid var(--color-post-preview-border);
    border-radius: 8px;
    background: var(--color-post-preview-bg);
    box-shadow: 0 2px 4px var(--color-post-preview-shadow);
    transition: all 0.3s ease;
}

.sources-section:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px var(--color-post-preview-shadow);
}

.sources-header {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
    margin-bottom: 0;
    padding: 4px 12px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.sources-header h2 {
    margin: -10px;
    padding-top: 2px;
    font-size: 1.2em;
    color: var(--color-post-page-title);
    background: none;
    border: none;
}

.sources-toggle {
    font-size: 1.4em;
    font-weight: bold;
    transition: transform 0.3s ease;
    color: var(--color-post-preview-border);
    width: 20px;
    text-align: center;
}

.sources-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: var(--color-post-preview-bg);
}

.sources-content.expanded {
    max-height: 3000px;
    transition: max-height 0.5s ease-in;
    border-radius: 0 0 8px 8px;
}

.sources-list {
    padding-left: 20px;
    padding-right: 20px;
}

.sources-list ol,
.sources-list ul {
    margin: 0;
    padding-top: 10px;
    padding-left: 20px;
}

.sources-list li {
    margin-bottom: 8px;
    line-height: 1.2;
}

.sources-list a {
    color: var(--color-link-text);
    text-decoration: none;
    font-size: 1em !important;
    vertical-align: baseline !important;
    word-break: break-word !important;
}

.sources-list a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}