/* ============================================
   BLOG / ARTICLE STYLES
   FXiation Digital
   ============================================ */

/* Blog Listing Page */
.blog-header {
    padding: 140px 0 40px;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
    text-align: center;
}

.blog-header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--navy-deep);
    margin-bottom: 16px;
}

.blog-header .highlight {
    color: var(--teal);
}

.blog-header p {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

.blog-grid {
    padding: 60px 0 80px;
}

.blog-posts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.blog-card {
    display: block;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    padding: 32px;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.blog-card:hover {
    border-color: var(--teal);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.blog-card-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--teal);
    background: rgba(13, 148, 136, 0.08);
    padding: 3px 10px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--navy-deep);
    line-height: 1.3;
    margin-bottom: 12px;
}

.blog-card-excerpt {
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 16px;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--gray-400);
}

.blog-card-read {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--teal);
    font-weight: 500;
}

.blog-card-read svg {
    width: 16px;
    height: 16px;
}

@media (max-width: 768px) {
    .blog-posts {
        grid-template-columns: 1fr;
    }
}

/* Article Header */
.article-header {
    padding: 140px 0 40px;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.article-header-inner {
    max-width: 800px;
    margin: 0 auto;
}

.article-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 32px;
    font-size: 0.875rem;
}

.article-breadcrumb a {
    color: var(--teal);
    text-decoration: none;
    font-weight: 500;
}

.article-breadcrumb a:hover {
    text-decoration: underline;
}

.article-breadcrumb span {
    color: var(--gray-400);
}

.article-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--teal);
    background: rgba(13, 148, 136, 0.08);
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--navy-deep);
    margin-bottom: 20px;
    line-height: 1.15;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.article-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.article-author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--teal), var(--navy));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1rem;
}

.article-author-info {
    display: flex;
    flex-direction: column;
}

.article-author-name {
    font-weight: 600;
    color: var(--navy-deep);
    font-size: 0.95rem;
}

.article-author-role {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.article-date {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--gray-400);
}

.article-read-time {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--gray-400);
}

/* Article Content */
.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 24px 80px;
}

.article-content p {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 24px;
}

.article-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--navy-deep);
    margin-top: 48px;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.article-content h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--navy-deep);
    margin-top: 36px;
    margin-bottom: 16px;
}

.article-content ul, .article-content ol {
    margin-left: 24px;
    margin-bottom: 24px;
}

.article-content li {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 8px;
}

.article-content strong {
    color: var(--navy-deep);
    font-weight: 600;
}

.article-content a {
    color: var(--teal);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-content a:hover {
    color: var(--teal-light);
}

.article-content blockquote {
    border-left: 4px solid var(--teal);
    padding: 20px 24px;
    margin: 32px 0;
    background: var(--gray-50);
    border-radius: 0 8px 8px 0;
}

.article-content blockquote p {
    font-size: 1.125rem;
    color: var(--gray-700);
    font-weight: 500;
    margin-bottom: 0;
}

/* Formula Box */
.formula-box {
    background: var(--navy-deep);
    color: var(--white);
    padding: 32px;
    border-radius: 12px;
    margin: 32px 0;
    text-align: center;
}

.formula-box .formula-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--teal-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.formula-box .formula {
    font-family: var(--font-mono);
    font-size: clamp(1rem, 3vw, 1.4rem);
    color: var(--white);
    margin-bottom: 16px;
    line-height: 1.6;
}

.formula-box .formula-note {
    font-size: 0.9rem;
    color: var(--gray-400);
}

/* Example Card (blog-specific) */
.example-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    padding: 32px;
    margin: 32px 0;
}

.example-card h4 {
    font-size: 1rem;
    font-family: var(--font-mono);
    color: var(--teal);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.example-card p {
    margin-bottom: 8px;
}

.example-card .result {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--navy-deep);
    margin-top: 16px;
}

/* Article CTA */
.article-cta {
    background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 100%);
    border-radius: 12px;
    padding: 48px 40px;
    margin: 48px 0;
    text-align: center;
}

.article-cta h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.article-cta p {
    color: var(--gray-400);
    margin-bottom: 28px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.article-cta .btn-primary {
    color: var(--white);
    text-decoration: none;
}

.article-cta .btn-primary:hover {
    color: var(--white);
}

/* Back to Blog */
.back-to-blog {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

.back-to-blog a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--teal);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: gap var(--transition-fast);
}

.back-to-blog a:hover {
    gap: 12px;
}

.back-to-blog svg {
    width: 16px;
    height: 16px;
}