/**
 * Pillar Backlink Styles
 * Styles for auto-injected pillar backlinks on leaf articles
 */

/* =============================================
   CTA Box Style
   ============================================= */

.tag-pillar-backlink--cta {
    margin: 2.5rem 5% 0;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f0fe 100%);
    border: 1px solid #c4d8f0;
    border-left: 4px solid #3b82f6;
    border-radius: 8px;
}

.tag-pillar-backlink--cta .tag-pillar-backlink__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.tag-pillar-backlink--cta .tag-pillar-backlink__label {
    font-size: 1rem;
    font-weight: 500;
    color: #1e3a5f;
    line-height: 1.5;
}

.tag-pillar-backlink--cta .tag-pillar-backlink__link {
    display: inline-flex;
    align-items: center;
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: #fff;
    background: #3b82f6;
    border-radius: 6px;
    text-decoration: none;
    white-space: nowrap;
    transition: background 0.2s ease, transform 0.2s ease;
}

.tag-pillar-backlink--cta .tag-pillar-backlink__link:hover {
    background: #2563eb;
    transform: translateY(-1px);
}

/* =============================================
   Contextual Sentence Style
   ============================================= */

.tag-pillar-backlink--sentence {
    margin: 2rem 5% 0;
    padding-top: 1.25rem;
    border-top: 1px solid #e5e7eb;
    font-size: 0.9375rem;
    color: #4b5563;
    font-style: italic;
    line-height: 1.6;
}

.tag-pillar-backlink__inline-link {
    color: #3b82f6;
    font-weight: 500;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease, color 0.2s ease;
}

.tag-pillar-backlink__inline-link:hover {
    color: #2563eb;
    border-bottom-color: #2563eb;
}

/* =============================================
   Sibling Links
   ============================================= */

.tag-pillar-siblings {
    margin: 2rem 5% 0;
    padding: 1.25rem 1.5rem;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
}

.tag-pillar-siblings__heading {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1f2937;
    margin: 0 0 0.75rem 0;
}

.tag-pillar-siblings__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tag-pillar-siblings__list li {
    padding: 0.375rem 0;
    border-bottom: 1px solid #f3f4f6;
}

.tag-pillar-siblings__list li:last-child {
    border-bottom: none;
}

.tag-pillar-siblings__list a {
    color: #3b82f6;
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 0.2s ease;
}

.tag-pillar-siblings__list a:hover {
    color: #2563eb;
    text-decoration: underline;
}

/* =============================================
   Hierarchy Children (Core→Pillars, Pillar→Leaves)
   ============================================= */

.tag-hierarchy-children {
    margin: 2rem 5% 0;
    padding: 1.25rem 1.5rem;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
}

.tag-hierarchy-children--core {
    border-left: 4px solid #8b5cf6;
}

.tag-hierarchy-children--pillar {
    border-left: 4px solid #3b82f6;
}

.tag-hierarchy-children__heading {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1f2937;
    margin: 0 0 0.75rem 0;
}

.tag-hierarchy-children__list {
    list-style: none;
    margin: 0;
    padding: 0;
    columns: 2;
    column-gap: 2rem;
}

.tag-hierarchy-children__list li {
    padding: 0.375rem 0;
    border-bottom: 1px solid #f3f4f6;
    break-inside: avoid;
}

.tag-hierarchy-children__list li:last-child {
    border-bottom: none;
}

.tag-hierarchy-children__list a {
    color: #3b82f6;
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 0.2s ease;
}

.tag-hierarchy-children__list a:hover {
    color: #2563eb;
    text-decoration: underline;
}

/* =============================================
   Responsive
   ============================================= */

@media (max-width: 600px) {
    .tag-pillar-backlink--cta .tag-pillar-backlink__inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .tag-pillar-backlink--cta .tag-pillar-backlink__link {
        width: 100%;
        justify-content: center;
    }

    .tag-hierarchy-children__list {
        columns: 1;
    }
}