/* ============================================
   AUTOMATDO BLOG STYLES
   Extends landing.css design system
   ============================================ */

/* ---------- Reading Progress Bar ---------- */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: 1001;
    background: var(--border-subtle);
}

.reading-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 0.1s linear;
}

/* ---------- Blog Header ---------- */
.blog-header {
    position: relative;
    z-index: 10;
    padding: 10rem var(--space-xl) var(--space-3xl);
    text-align: center;
}

.blog-header-container {
    max-width: var(--container-max);
    margin: 0 auto;
}

.blog-header-content {
    margin-bottom: var(--space-2xl);
}

.blog-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-subtitle {
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ---------- Category Filters ---------- */
.blog-filters {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-medium);
    background: var(--bg-elevated);
}

.filter-btn.active {
    color: var(--accent-primary);
    background: rgba(212, 165, 48, 0.1);
    border-color: rgba(212, 165, 48, 0.3);
}

/* ---------- Featured Post ---------- */
.featured-post-section {
    position: relative;
    z-index: 10;
    padding: 0 0 var(--space-3xl);
}

.featured-post {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

[data-theme="light"] .featured-post {
    background: var(--bg-card-solid);
    box-shadow: var(--shadow-md);
}

.featured-post:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

[data-theme="light"] .featured-post:hover {
    box-shadow: var(--shadow-lg);
}

.featured-post-link {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    text-decoration: none;
    color: inherit;
}

.featured-post-image {
    position: relative;
    min-height: 320px;
    background: linear-gradient(135deg, rgba(212, 165, 48, 0.15) 0%, rgba(212, 165, 48, 0.05) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.featured-post-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 30%, rgba(212, 165, 48, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 70%, rgba(228, 188, 90, 0.2) 0%, transparent 50%);
    animation: gradientShift 8s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% {
        opacity: 0.8;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
}

.featured-badge {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-lg);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-primary);
    background: rgba(212, 165, 48, 0.15);
    border: 1px solid rgba(212, 165, 48, 0.3);
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
}

.featured-post-content {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    font-size: 0.8125rem;
}

.post-category {
    color: var(--accent-primary);
    font-weight: 600;
}

.post-date,
.post-read-time {
    color: var(--text-tertiary);
}

.post-meta span:not(:last-child)::after {
    content: '';
    display: inline-block;
    width: 3px;
    height: 3px;
    background: var(--text-tertiary);
    border-radius: 50%;
    margin-left: var(--space-md);
    vertical-align: middle;
}

.featured-post-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: var(--space-md);
    transition: color var(--transition-fast);
}

.featured-post:hover .featured-post-title {
    color: var(--accent-primary);
}

.featured-post-excerpt {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--accent-primary);
    transition: gap var(--transition-fast);
}

.read-more svg {
    transition: transform var(--transition-fast);
}

.featured-post:hover .read-more {
    gap: var(--space-md);
}

.featured-post:hover .read-more svg {
    transform: translateX(4px);
}

/* ---------- Blog Posts Grid ---------- */
.blog-posts-section {
    position: relative;
    z-index: 10;
    padding: 0 0 var(--space-4xl);
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

/* ---------- Post Card ---------- */
.post-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

[data-theme="light"] .post-card {
    background: var(--bg-card-solid);
    box-shadow: var(--shadow-sm);
}

.post-card:hover {
    border-color: var(--border-medium);
    transform: translateY(-4px);
}

[data-theme="light"] .post-card:hover {
    box-shadow: var(--shadow-md);
}

.post-card-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.post-card-image {
    position: relative;
    height: 140px;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-elevated) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border-subtle);
}

.post-card-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212, 165, 48, 0.1);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    transition: all var(--transition-base);
}

.post-card:hover .post-card-icon {
    background: rgba(212, 165, 48, 0.2);
    transform: scale(1.05);
}

.post-card-content {
    padding: var(--space-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.post-card .post-meta {
    margin-bottom: var(--space-sm);
}

.post-card-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: var(--space-sm);
    transition: color var(--transition-fast);
}

.post-card:hover .post-card-title {
    color: var(--accent-primary);
}

.post-card-excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    flex: 1;
}

/* ---------- Load More / Pagination ---------- */
.load-more-container {
    text-align: center;
    padding-top: var(--space-2xl);
}

.posts-count {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* ---------- Blog CTA ---------- */
.blog-cta {
    position: relative;
    z-index: 10;
    padding: 0 0 var(--space-4xl);
}

.blog-cta-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2xl);
    padding: var(--space-2xl) var(--space-3xl);
    background: linear-gradient(135deg, rgba(212, 165, 48, 0.1) 0%, rgba(212, 165, 48, 0.02) 100%);
    border: 1px solid rgba(212, 165, 48, 0.2);
    border-radius: var(--radius-xl);
}

[data-theme="light"] .blog-cta-card {
    background: linear-gradient(135deg, rgba(184, 145, 42, 0.08) 0%, rgba(184, 145, 42, 0.02) 100%);
    border-color: rgba(184, 145, 42, 0.2);
}

.blog-cta-content h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.blog-cta-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 500px;
}

/* ---------- Article Page Styles ---------- */
.article-header {
    position: relative;
    z-index: 10;
    padding: 10rem var(--space-xl) var(--space-3xl);
}

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

.article-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    font-size: 0.875rem;
}

.article-breadcrumb a {
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.article-breadcrumb a:hover {
    color: var(--accent-primary);
}

.article-breadcrumb span {
    color: var(--text-tertiary);
}

.article-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-lg);
}

.article-excerpt {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-subtle);
}

.article-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.author-avatar {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border-radius: 50%;
    font-size: 0.875rem;
    font-weight: 600;
    color: white;
}

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

.author-name {
    font-weight: 600;
    font-size: 0.9375rem;
}

.author-role {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

.article-stats {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* ---------- Article Content ---------- */
.article-content-section {
    position: relative;
    z-index: 10;
    padding: 0 var(--space-xl) var(--space-4xl);
}

.article-content {
    max-width: 720px;
    margin: 0 auto;
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.article-content h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
    letter-spacing: -0.01em;
}

.article-content h3 {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
}

.article-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

.article-content p {
    margin-bottom: var(--space-lg);
}

.article-content a {
    color: var(--accent-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-fast);
}

.article-content a:hover {
    color: var(--accent-secondary);
}

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

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

.article-content li {
    margin-bottom: var(--space-sm);
    list-style-type: disc;
}

.article-content ol li {
    list-style-type: decimal;
}

.article-content blockquote {
    margin: var(--space-xl) 0;
    padding: var(--space-lg) var(--space-xl);
    background: var(--bg-tertiary);
    border-left: 4px solid var(--accent-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--text-primary);
}

.article-content blockquote p:last-child {
    margin-bottom: 0;
}

.article-content pre {
    margin: var(--space-xl) 0;
    padding: var(--space-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    overflow-x: auto;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.875rem;
    line-height: 1.6;
}

.article-content code {
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.875em;
    padding: 0.2em 0.4em;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--accent-primary);
}

.article-content pre code {
    padding: 0;
    background: none;
    color: var(--text-primary);
}

.article-content img {
    max-width: 100%;
    height: auto;
    margin: var(--space-xl) 0;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
}

.article-content hr {
    margin: var(--space-3xl) 0;
    border: none;
    border-top: 1px solid var(--border-subtle);
}

.article-content table {
    width: 100%;
    margin: var(--space-xl) 0;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.article-content th,
.article-content td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
}

.article-content th {
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.article-content tr:hover td {
    background: var(--bg-secondary);
}

/* ---------- Table of Contents ---------- */
.article-toc {
    margin: var(--space-2xl) 0;
    padding: var(--space-xl);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.article-toc-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.article-toc ul {
    margin: 0;
    padding-left: var(--space-lg);
}

.article-toc li {
    margin-bottom: var(--space-sm);
    list-style-type: none;
    position: relative;
}

.article-toc li::before {
    content: '';
    position: absolute;
    left: calc(var(--space-lg) * -1 + 4px);
    top: 0.6em;
    width: 6px;
    height: 6px;
    background: var(--accent-primary);
    border-radius: 50%;
    opacity: 0.5;
}

.article-toc a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.article-toc a:hover {
    color: var(--accent-primary);
}

/* ---------- Related Posts ---------- */
.related-posts {
    position: relative;
    z-index: 10;
    padding: var(--space-3xl) var(--space-xl) var(--space-4xl);
    background: var(--bg-secondary);
}

.related-posts-container {
    max-width: var(--container-max);
    margin: 0 auto;
}

.related-posts-header {
    margin-bottom: var(--space-2xl);
}

.related-posts-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

/* ---------- Article CTA ---------- */
.article-cta {
    margin: var(--space-3xl) 0;
    padding: var(--space-2xl);
    background: linear-gradient(135deg, rgba(212, 165, 48, 0.1) 0%, rgba(212, 165, 48, 0.02) 100%);
    border: 1px solid rgba(212, 165, 48, 0.2);
    border-radius: var(--radius-xl);
    text-align: center;
}

.article-cta h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    margin-top: 0;
    color: var(--text-primary);
}

.article-cta p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

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

/* ---------- Nav Active State ---------- */
.nav-link.active {
    color: var(--accent-primary);
}

.nav-link.active::after {
    width: 100%;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .blog-header {
        padding: 8rem var(--space-lg) var(--space-2xl);
    }

    .featured-post-link {
        grid-template-columns: 1fr;
    }

    .featured-post-image {
        min-height: 200px;
    }

    .featured-post-content {
        padding: var(--space-xl);
    }

    .posts-grid {
        grid-template-columns: 1fr;
    }

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

    .blog-cta-card {
        flex-direction: column;
        text-align: center;
        padding: var(--space-xl);
    }

    .blog-cta-content p {
        max-width: none;
    }

    .article-header {
        padding: 8rem var(--space-lg) var(--space-2xl);
    }

    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
    }

    .article-content-section {
        padding: 0 var(--space-lg) var(--space-3xl);
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8125rem;
    }
}

@media (max-width: 480px) {
    .blog-title {
        font-size: 2rem;
    }

    .featured-post-title {
        font-size: 1.25rem;
    }

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

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

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

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