/**
 * BrainFusion Blog Styles
 * Web Awesome component customizations and blog-specific typography
 * Maintains brand consistency with main site design system
 */

/* ============================================
   BLOG LAYOUT & CONTAINERS
   ============================================ */

.blog-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.blog-content-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.blog-narrow-container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ============================================
   BLOG HERO & HEADER SECTIONS
   ============================================ */

.blog-hero {
    background: linear-gradient(135deg,
        var(--bf-teal-95, #E6F7F5) 0%,
        var(--bf-blue-95, #E8F1F8) 100%);
    padding: 4rem 1rem 3rem;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--bf-teal-90, #CCF0EB);
}

.blog-hero-title {
    font-size: 3rem;
    font-weight: 600;
    color: var(--bf-blue-10, #052D60);
    margin-bottom: 1rem;
    text-align: center;
}

.blog-hero-subtitle {
    font-size: 1.25rem;
    color: var(--bf-blue-30, #1E5A8C);
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   BLOG ARTICLE CARDS (Index Page)
   ============================================ */

.blog-article-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid var(--bf-teal-90, #CCF0EB);
    margin-bottom: 2rem;
}

.blog-article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(58, 187, 167, 0.15);
}

.blog-article-card-image {
    width: 100%;
    height: 240px;
    object-fit: cover;
    object-position: center;
    background: linear-gradient(135deg,
        var(--bf-teal-70, #3ABBA7) 0%,
        var(--bf-blue-50, #4A8BC2) 100%);
}

.blog-article-card-content {
    padding: 2rem;
}

.blog-article-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--bf-blue-40, #2A6FA5);
}

.blog-article-card-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--bf-blue-10, #052D60);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.blog-article-card-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.blog-article-card-title a:hover {
    color: var(--bf-teal-60, #2DA895);
}

.blog-article-card-excerpt {
    font-size: 1rem;
    color: #442C2E;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.blog-article-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.blog-article-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* ============================================
   ARTICLE HEADER (Individual Article Page)
   ============================================ */

.article-header {
    margin-bottom: 3rem;
    padding: 2rem;
    border-bottom: 1px solid var(--bf-teal-90, #CCF0EB);
}

.article-featured-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    object-position: center;
    border-radius: 12px;
    margin-bottom: 2rem;
    background: linear-gradient(135deg,
        var(--bf-teal-95, #E6F7F5) 0%,
        var(--bf-blue-95, #E8F1F8) 100%);
}

.article-featured-image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg,
        var(--bf-teal-70, #3ABBA7) 0%,
        var(--bf-blue-50, #4A8BC2) 100%);
    border-radius: 12px;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
    color: var(--bf-blue-40, #2A6FA5);
    flex-wrap: wrap;
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-title {
    font-size: 3rem;
    font-weight: 600;
    color: var(--bf-blue-10, #052D60);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.article-excerpt {
    font-size: 1.25rem;
    color: var(--bf-blue-30, #1E5A8C);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* ============================================
   ARTICLE CONTENT (Markdown Prose)
   ============================================ */

.article-content {
    font-size: 1.125rem;
    line-height: 1.8;
    color: #442C2E;
    margin-bottom: 3rem;
}

.article-content h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--bf-blue-10, #052D60);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--bf-blue-20, #0F4273);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.article-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--bf-blue-30, #1E5A8C);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content a {
    color: var(--bf-teal-60, #2DA895);
    text-decoration: underline;
    text-decoration-color: var(--bf-teal-alpha-30, rgba(58, 187, 167, 0.3));
    text-underline-offset: 2px;
    transition: all 0.2s ease;
}

.article-content a:hover {
    color: var(--bf-teal-50, #1E9582);
    text-decoration-color: var(--bf-teal-60, #2DA895);
}

.article-content ul,
.article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.article-content blockquote {
    border-left: 4px solid var(--bf-teal-60, #2DA895);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--bf-blue-30, #1E5A8C);
}

.article-content code {
    background: var(--bf-teal-95, #E6F7F5);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: 'Courier New', monospace;
    color: var(--bf-blue-20, #0F4273);
}

.article-content pre {
    background: var(--bf-blue-98, #F5F9FC);
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 2rem 0;
    border: 1px solid var(--bf-teal-90, #CCF0EB);
}

.article-content pre code {
    background: none;
    padding: 0;
    font-size: 0.875rem;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 2rem 0;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
}

.article-content th,
.article-content td {
    padding: 0.75rem;
    border: 1px solid var(--bf-teal-90, #CCF0EB);
    text-align: left;
}

.article-content th {
    background: var(--bf-teal-95, #E6F7F5);
    font-weight: 600;
    color: var(--bf-blue-10, #052D60);
}

/* ============================================
   SOCIAL SHARING
   ============================================ */

.article-share {
    padding: 2rem 0;
    border-top: 1px solid var(--bf-teal-90, #CCF0EB);
    border-bottom: 1px solid var(--bf-teal-90, #CCF0EB);
    margin: 3rem 0;
}

.article-share-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--bf-blue-10, #052D60);
    margin-bottom: 1rem;
}

.article-share-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Web Awesome button customizations for social sharing */
.share-btn-facebook::part(base) {
    background: #1877F2;
    border-color: #1877F2;
    color: white;
}

.share-btn-facebook::part(base):hover {
    background: #145DBF;
    border-color: #145DBF;
}

.share-btn-twitter::part(base) {
    background: #1DA1F2;
    border-color: #1DA1F2;
    color: white;
}

.share-btn-twitter::part(base):hover {
    background: #0C85D0;
    border-color: #0C85D0;
}

.share-btn-linkedin::part(base) {
    background: #0A66C2;
    border-color: #0A66C2;
    color: white;
}

.share-btn-linkedin::part(base):hover {
    background: #004182;
    border-color: #004182;
}

/* ============================================
   RELATED ARTICLES
   ============================================ */

.related-articles {
    margin: 4rem 0;
}

.related-articles-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--bf-blue-10, #052D60);
    margin-bottom: 2rem;
    text-align: center;
}

.related-articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.related-article-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--bf-teal-90, #CCF0EB);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
}

.related-article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(58, 187, 167, 0.15);
}

.related-article-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
    object-position: center;
    background: linear-gradient(135deg,
        var(--bf-teal-80, #5BC7B5) 0%,
        var(--bf-blue-60, #6BA3D0) 100%);
}

.related-article-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.related-article-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--bf-blue-10, #052D60);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.related-article-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.related-article-title a:hover {
    color: var(--bf-teal-60, #2DA895);
}

.related-article-excerpt {
    font-size: 0.9375rem;
    color: #442C2E;
    line-height: 1.6;
    margin-bottom: 1rem;
    flex: 1;
}

.related-article-meta {
    font-size: 0.875rem;
    color: var(--bf-blue-40, #2A6FA5);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* ============================================
   SUBSCRIBE CTA
   ============================================ */

.blog-subscribe-cta {
    background: linear-gradient(135deg,
        var(--bf-teal-95, #E6F7F5) 0%,
        var(--bf-blue-95, #E8F1F8) 100%);
    border-radius: 12px;
    padding: 3rem 2rem;
    margin: 4rem 0;
    text-align: center;
    border: 1px solid var(--bf-teal-90, #CCF0EB);
}

.blog-subscribe-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--bf-blue-10, #052D60);
    margin-bottom: 1rem;
}

.blog-subscribe-description {
    font-size: 1.125rem;
    color: var(--bf-blue-30, #1E5A8C);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.blog-subscribe-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
    flex-wrap: wrap;
    justify-content: center;
}

.blog-subscribe-input {
    flex: 1;
    min-width: 250px;
}

/* Web Awesome button customization for subscribe CTA */
.subscribe-btn::part(base) {
    background: var(--bf-teal-60, #2DA895);
    border-color: var(--bf-teal-60, #2DA895);
    color: white;
    padding: 0 2rem;
}

.subscribe-btn::part(base):hover {
    background: var(--bf-teal-50, #1E9582);
    border-color: var(--bf-teal-50, #1E9582);
}

/* ============================================
   BREADCRUMB NAVIGATION
   ============================================ */

.blog-breadcrumb {
    margin: 2rem 0;
    font-size: 0.875rem;
}

.blog-breadcrumb a {
    color: var(--bf-teal-60, #2DA895);
    text-decoration: none;
    transition: color 0.2s ease;
}

.blog-breadcrumb a:hover {
    color: var(--bf-teal-50, #1E9582);
    text-decoration: underline;
}

.blog-breadcrumb-separator {
    margin: 0 0.5rem;
    color: var(--bf-blue-40, #2A6FA5);
}

.blog-breadcrumb-current {
    color: var(--bf-blue-30, #1E5A8C);
}

/* ============================================
   WEB AWESOME BADGE CUSTOMIZATIONS
   ============================================ */

.blog-tag-badge::part(base) {
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
}

.blog-category-badge::part(base) {
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
    font-weight: 600;
}

/* ============================================
   WEB AWESOME BUTTON CUSTOMIZATIONS
   ============================================ */

.blog-primary-btn::part(base) {
    background: var(--bf-teal-60, #2DA895);
    border-color: var(--bf-teal-60, #2DA895);
    color: white;
}

.blog-primary-btn::part(base):hover {
    background: var(--bf-teal-50, #1E9582);
    border-color: var(--bf-teal-50, #1E9582);
}

.blog-secondary-btn::part(base) {
    background: transparent;
    border-color: var(--bf-teal-60, #2DA895);
    color: var(--bf-teal-60, #2DA895);
}

.blog-secondary-btn::part(base):hover {
    background: var(--bf-teal-95, #E6F7F5);
    border-color: var(--bf-teal-50, #1E9582);
    color: var(--bf-teal-50, #1E9582);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .blog-hero {
        padding: 3rem 1rem 2rem;
    }

    .blog-hero-title {
        font-size: 2.25rem;
    }

    .blog-hero-subtitle {
        font-size: 1.125rem;
    }

    .article-title {
        font-size: 2rem;
    }

    .article-featured-image,
    .article-featured-image-placeholder {
        height: 250px;
    }

    .article-content {
        font-size: 1rem;
    }

    .article-content h2 {
        font-size: 1.5rem;
    }

    .article-content h3 {
        font-size: 1.25rem;
    }

    .blog-article-card-content {
        padding: 1.5rem;
    }

    .blog-article-card-title {
        font-size: 1.5rem;
    }

    .blog-subscribe-cta {
        padding: 2rem 1.5rem;
    }

    .blog-subscribe-title {
        font-size: 1.5rem;
    }

    .blog-subscribe-form {
        flex-direction: column;
    }

    .related-articles-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .blog-hero-title {
        font-size: 1.75rem;
    }

    .article-title {
        font-size: 1.75rem;
    }

    .article-meta {
        font-size: 0.875rem;
    }

    .blog-article-card-title {
        font-size: 1.25rem;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.blog-section-divider {
    margin: 4rem 0;
    border: 0;
    border-top: 1px solid var(--bf-teal-90, #CCF0EB);
}

.blog-text-muted {
    color: var(--bf-blue-40, #2A6FA5);
}

.blog-text-accent {
    color: var(--bf-teal-60, #2DA895);
}

.blog-bg-light {
    background: var(--bf-teal-98, #F5FCFB);
}

.blog-spacing-top {
    margin-top: 3rem;
}

.blog-spacing-bottom {
    margin-bottom: 3rem;
}