/* ==========================================
   BLOG PAGE STYLES
   Matches the Transformer CV design system
   ========================================== */

/* ==================== BODY OVERRIDE ==================== */

.blog-body {
    overflow: auto;
    position: relative;
    height: auto;
    min-height: 100vh;
    background: linear-gradient(180deg, #0a0a0a 0%, #111111 50%, #0a0a0a 100%);
}

/* ==================== BLOG HEADER ==================== */

.blog-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.blog-header-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-xl);
}

.blog-header .logo {
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.25rem;
    font-weight: var(--font-weight-black);
}

/* ==================== BLOG NAVIGATION ==================== */

.blog-nav {
    display: flex;
    gap: var(--space-xs);
    background: var(--color-bg-elevated);
    padding: var(--space-xs);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
}

.blog-nav-link {
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-base);
}

.blog-nav-link:hover {
    color: var(--color-text-primary);
    background: var(--color-surface);
}

.blog-nav-link.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
}

/* ==================== CONTAINER ==================== */

.blog-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* ==================== BLOG HERO ==================== */

.blog-hero {
    padding: var(--space-3xl) 0 var(--space-2xl);
    text-align: center;
    position: relative;
}

.blog-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
}

.blog-hero-title {
    font-size: 3rem;
    font-weight: var(--font-weight-black);
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-tertiary);
    max-width: 650px;
    margin: 0 auto;
}

/* ==================== BLOG MAIN ==================== */

.blog-main {
    padding: var(--space-2xl) 0;
}

/* ==================== BLOG POST CARDS ==================== */

.blog-post {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.blog-post::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.blog-post:hover {
    border-color: rgba(255, 107, 0, 0.3);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.blog-post:hover::before {
    opacity: 1;
}

/* Featured Post */
.blog-post.featured {
    margin-bottom: var(--space-2xl);
    border-color: rgba(255, 107, 0, 0.2);
    background: linear-gradient(135deg, rgba(255, 107, 0, 0.05) 0%, var(--color-bg-elevated) 100%);
}

.blog-post.featured::before {
    opacity: 1;
}

.blog-post.featured .blog-post-title {
    font-size: 1.75rem;
}

/* Post Meta */
.blog-post-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.blog-post-tag {
    padding: var(--space-xs) var(--space-md);
    background: rgba(255, 107, 0, 0.1);
    border: 1px solid rgba(255, 107, 0, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.blog-post-date {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    margin-left: auto;
}

/* Post Content */
.blog-post-title {
    font-size: 1.375rem;
    font-weight: var(--font-weight-bold);
    line-height: 1.3;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.blog-post-excerpt {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

/* Post Author */
.blog-post-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.blog-post-author-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.blog-post-author-name {
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.blog-post-read-time {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
}

/* ==================== BLOG GRID ==================== */

.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

/* ==================== BLOG CTA ==================== */

.blog-cta {
    text-align: center;
    padding: var(--space-3xl) var(--space-xl);
    margin-top: var(--space-2xl);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.blog-cta-title {
    font-size: 1.75rem;
    font-weight: var(--font-weight-black);
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-cta-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin: 0 auto var(--space-xl);
}

.blog-cta-links {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.blog-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
    transition: all var(--transition-base);
}

.blog-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.blog-cta-btn-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

.blog-cta-btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

/* ==================== BLOG FOOTER ==================== */

.blog-footer {
    padding: var(--space-xl) 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-tertiary);
    font-size: 0.8125rem;
}

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

@media (max-width: 768px) {
    .blog-hero-title {
        font-size: 2rem;
    }

    .blog-hero-subtitle {
        font-size: 1rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .blog-post.featured .blog-post-title {
        font-size: 1.375rem;
    }

    .blog-header-inner {
        padding: var(--space-md) var(--space-lg);
    }

    .blog-container {
        padding: 0 var(--space-lg);
    }

    .blog-cta {
        padding: var(--space-2xl) var(--space-lg);
    }
}

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

    .blog-nav {
        gap: 0;
    }

    .blog-nav-link {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.8125rem;
    }

    .blog-post {
        padding: var(--space-lg);
    }
}

/* ==================== ARTICLE PAGE ==================== */

.article-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.article-hero {
    padding: var(--space-3xl) 0 var(--space-xl);
    text-align: center;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-2xl);
}

.article-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.article-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-black);
    line-height: 1.15;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

.article-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--color-text-tertiary);
    max-width: 620px;
    margin: 0 auto var(--space-lg);
}

.article-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.article-author strong {
    color: var(--color-primary);
}

.article-read-time {
    color: var(--color-text-tertiary);
}

/* Article Body */
.article-body {
    padding-bottom: var(--space-3xl);
}

.article-body h2 {
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid rgba(255, 107, 0, 0.2);
}

.article-body h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

.article-body p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.article-body strong {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
}

.article-body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-color: rgba(255, 107, 0, 0.3);
    text-underline-offset: 3px;
    transition: text-decoration-color var(--transition-fast);
}

.article-body a:hover {
    text-decoration-color: var(--color-primary);
}

.article-body ul, .article-body ol {
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xl);
}

.article-body li {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.article-body li strong {
    color: var(--color-text-primary);
}

/* Blockquotes */
.article-body blockquote {
    margin: var(--space-xl) 0;
    padding: var(--space-lg) var(--space-xl);
    background: rgba(255, 107, 0, 0.05);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-body blockquote p {
    font-size: 1.0625rem;
    font-style: italic;
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

.article-body blockquote cite,
.article-body blockquote .source {
    display: block;
    margin-top: var(--space-sm);
    font-size: 0.875rem;
    font-style: normal;
    color: var(--color-text-tertiary);
}

/* Charts / Figures */
.article-chart {
    margin: var(--space-xl) 0;
    padding: var(--space-xl);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.article-chart-title {
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
    text-align: center;
}

.chart-bar-group {
    margin-bottom: var(--space-md);
}

.chart-bar-label {
    font-size: 0.8125rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
    display: flex;
    justify-content: space-between;
}

.chart-bar-track {
    height: 28px;
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
}

.chart-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-sm);
    transition: width 1s ease-out;
    display: flex;
    align-items: center;
    padding-left: var(--space-sm);
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: white;
    min-width: fit-content;
}

.chart-bar-fill.accent {
    background: linear-gradient(90deg, var(--color-accent), #0099cc);
}

.chart-bar-fill.success {
    background: linear-gradient(90deg, var(--color-success), #00cc66);
}

.chart-bar-fill.warning {
    background: linear-gradient(90deg, var(--color-warning), #cc9900);
}

/* Stat Cards in articles */
.article-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-md);
    margin: var(--space-xl) 0;
}

.article-stat {
    text-align: center;
    padding: var(--space-lg);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.article-stat-value {
    display: block;
    font-size: 2rem;
    font-weight: var(--font-weight-black);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: var(--space-xs);
}

.article-stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    font-weight: var(--font-weight-medium);
}

/* Callout boxes */
.article-callout {
    margin: var(--space-xl) 0;
    padding: var(--space-lg) var(--space-xl);
    background: rgba(0, 217, 255, 0.05);
    border: 1px solid rgba(0, 217, 255, 0.2);
    border-radius: var(--radius-lg);
}

.article-callout.warning {
    background: rgba(255, 204, 0, 0.05);
    border-color: rgba(255, 204, 0, 0.2);
}

.article-callout-title {
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.article-callout.warning .article-callout-title {
    color: var(--color-warning);
}

.article-callout p {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* Framework / Process diagrams */
.article-framework {
    margin: var(--space-xl) 0;
    padding: var(--space-xl);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.article-framework-title {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    text-align: center;
    margin-bottom: var(--space-xl);
}

.framework-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.framework-step {
    text-align: center;
    padding: var(--space-lg);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    position: relative;
}

.framework-step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: var(--font-weight-bold);
    color: white;
    margin-bottom: var(--space-sm);
}

.framework-step-title {
    font-size: 0.9375rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.framework-step-desc {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    line-height: 1.5;
}

/* References section */
.article-references {
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 2px solid var(--color-border);
}

.article-references h2 {
    font-size: 1.25rem;
    border-bottom: none;
    margin-top: 0;
}

.article-references ol {
    counter-reset: ref-counter;
    list-style: none;
    padding-left: 0;
}

.article-references li {
    counter-increment: ref-counter;
    position: relative;
    padding-left: var(--space-xl);
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-text-tertiary);
}

.article-references li::before {
    content: "[" counter(ref-counter) "]";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
    font-size: 0.8125rem;
}

.article-references a {
    color: var(--color-primary);
    text-decoration: none;
    word-break: break-all;
}

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

/* Back to blog link */
.article-back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-tertiary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    padding: var(--space-sm) 0;
    transition: color var(--transition-fast);
}

.article-back:hover {
    color: var(--color-primary);
}

/* Comparison tables */
.article-table-wrapper {
    margin: var(--space-xl) 0;
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.article-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.article-table th {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-elevated);
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
    text-align: left;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.75rem;
    border-bottom: 2px solid var(--color-border);
}

.article-table td {
    padding: var(--space-md) var(--space-lg);
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    line-height: 1.5;
}

.article-table tr:last-child td {
    border-bottom: none;
}

.article-table tr:hover td {
    background: var(--color-surface);
}

/* Responsive article */
@media (max-width: 768px) {
    .article-title {
        font-size: 1.75rem;
    }

    .article-subtitle {
        font-size: 1.0625rem;
    }

    .article-body h2 {
        font-size: 1.375rem;
    }

    .article-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .framework-steps {
        grid-template-columns: 1fr;
    }

    .article-container {
        padding: 0 var(--space-lg);
    }
}

@media (max-width: 480px) {
    .article-title {
        font-size: 1.5rem;
    }

    .article-stats {
        grid-template-columns: 1fr 1fr;
    }
}

/* ==================== REDUCED MOTION ==================== */

@media (prefers-reduced-motion: reduce) {
    .blog-post:hover {
        transform: none;
    }

    .blog-cta-btn:hover {
        transform: none;
    }
}