/* ========== BLOG STYLES ========== */
/* Design Language: Dark IoT Theme with Glassmorphism */

.blog-main {
    min-height: 100vh;
    padding-top: 80px;
}

/* ========== BLOG HERO ========== */
.blog-hero {
    position: relative;
    padding: 100px 0 80px;
    overflow: hidden;
}

.blog-hero-content {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
}

.blog-hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    color: var(--foreground);
    margin-bottom: 20px;
    line-height: 1.08;
}

.blog-hero-desc {
    font-size: 1.15rem;
    color: var(--foreground-muted);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ========== BLOG FILTER ========== */
.blog-filter-section {
    padding: 48px 0 48px;
}

.blog-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.blog-filter-btn {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 10px 24px;
    border-radius: var(--radius-full);
    border: 1px solid var(--glass-border);
    background: var(--glass);
    color: var(--foreground-muted);
    cursor: pointer;
    transition: all var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.blog-filter-btn:hover {
    background: var(--glass-hover);
    color: var(--foreground);
    border-color: rgba(255, 255, 255, 0.15);
}

.blog-filter-btn.active {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 20px var(--accent-glow);
}

/* ========== BLOG GRID ========== */
.blog-grid-section {
    padding: 0 0 120px;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

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

@media (max-width: 640px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== BLOG CARD ========== */
.blog-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
}

.blog-card-image {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--easing);
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

.blog-card-category {
    position: absolute;
    top: 16px;
    left: 16px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-light);
    background: rgba(5, 5, 6, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(139, 34, 82, 0.3);
}

.blog-card-content {
    padding: 28px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--foreground-muted);
    margin-bottom: 14px;
}

.blog-card-dot {
    width: 4px;
    height: 4px;
    background: var(--foreground-subtle);
    border-radius: 50%;
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 12px;
    flex: 1;
    text-align: left;
}

.blog-card-title a {
    color: var(--foreground);
    transition: color var(--transition);
}

.blog-card-title a:hover {
    color: var(--accent-light);
}

.blog-card-excerpt {
    font-size: 0.95rem;
    color: var(--foreground-muted);
    line-height: 1.6;
    margin-bottom: 20px;
    text-align: left;
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-light);
    transition: gap var(--transition);
}

.blog-card-link:hover {
    gap: 12px;
}

.blog-card-link svg {
    transition: transform var(--transition);
}

.blog-card:hover .blog-card-link svg {
    transform: translateX(4px);
}

/* ========== BLOG EMPTY STATE ========== */
.blog-empty {
    text-align: center;
    padding: 80px 40px;
    max-width: 400px;
    margin: 0 auto;
}

.blog-empty svg {
    color: var(--foreground-subtle);
    margin-bottom: 20px;
}

.blog-empty h3 {
    font-size: 1.5rem;
    color: var(--foreground);
    margin-bottom: 12px;
}

.blog-empty p {
    color: var(--foreground-muted);
}

/* ========== BLOG PAGINATION ========== */
.blog-pagination {
    display: flex;
    justify-content: center;
    margin-top: 64px;
    gap: 8px;
}

.blog-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--foreground-muted);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--transition);
}

.blog-pagination .page-numbers:hover {
    background: var(--glass-hover);
    color: var(--foreground);
    border-color: rgba(255, 255, 255, 0.15);
}

.blog-pagination .page-numbers.current,
.blog-pagination .page-numbers:active {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
}

.blog-pagination .page-numbers.dots {
    background: transparent;
    border-color: transparent;
    cursor: default;
}

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

/* ========== SINGLE POST STYLES ========== */
.single-post-main {
    min-height: 100vh;
    padding-top: 80px;
}

.single-post-header {
    position: relative;
    padding: 80px 0 60px;
    overflow: hidden;
}

.single-post-header-content {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

.single-post-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--foreground-muted);
    margin-bottom: 20px;
}

.single-post-breadcrumb a {
    color: var(--foreground-muted);
    transition: color var(--transition);
}

.single-post-breadcrumb a:hover {
    color: var(--foreground);
}

.single-post-breadcrumb svg {
    opacity: 0.5;
}

.single-post-title {
    font-size: clamp(2rem, 5vw, 3.2rem);
    color: var(--foreground);
    margin-bottom: 28px;
    line-height: 1.15;
    text-align: center;
}

.single-post-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
}

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

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--glass-border);
}

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

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

.author-role {
    font-size: 0.8rem;
    color: var(--foreground-muted);
}

.single-post-details {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--foreground-muted);
}

.meta-dot {
    width: 4px;
    height: 4px;
    background: var(--foreground-subtle);
    border-radius: 50%;
}

/* ========== FEATURED IMAGE ========== */
.single-post-featured {
    padding: 0 0 48px;
}

.single-post-image-wrapper {
    overflow: hidden;
    border-radius: var(--radius-xl);
    padding: 0;
}

.single-post-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

/* ========== SINGLE POST LAYOUT ========== */
.single-post-content-section {
    padding: 60px 0 60px;
}

.single-post-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 40px;
    align-items: start;
}

@media (max-width: 1024px) {
    .single-post-layout {
        grid-template-columns: 1fr;
    }
}

/* ========== SINGLE POST ARTICLE ========== */
.single-post-article {
    padding: 48px;
    border-radius: var(--radius-xl);
}

@media (max-width: 640px) {
    .single-post-article {
        padding: 28px;
        border-radius: var(--radius-lg);
    }
}

.single-post-body {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--foreground-muted);
}

.single-post-body h2 {
    font-size: 1.8rem;
    color: var(--foreground);
    margin: 48px 0 20px;
    padding-top: 20px;
}

.single-post-body h3 {
    font-size: 1.4rem;
    color: var(--foreground);
    margin: 36px 0 16px;
}

.single-post-body p {
    margin-bottom: 20px;
}

.single-post-body a {
    color: var(--accent-light);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition);
}

.single-post-body a:hover {
    color: var(--accent);
}

.single-post-body ul,
.single-post-body ol {
    margin: 20px 0;
    padding-left: 24px;
}

.single-post-body li {
    margin-bottom: 10px;
    list-style: disc;
}

.single-post-body ol li {
    list-style: decimal;
}

.single-post-body blockquote {
    position: relative;
    margin: 32px 0;
    padding: 24px 28px;
    background: var(--surface);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--foreground);
}

.single-post-body code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9em;
    background: var(--surface);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--accent-light);
}

.single-post-body pre {
    margin: 24px 0;
    padding: 20px;
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.single-post-body pre code {
    background: none;
    padding: 0;
    color: var(--foreground);
}

.single-post-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 24px 0;
}

.single-post-body figure {
    margin: 32px 0;
}

.single-post-body figcaption {
    text-align: center;
    font-size: 0.9rem;
    color: var(--foreground-subtle);
    margin-top: 12px;
}

.single-post-body hr {
    border: none;
    height: 1px;
    background: var(--glass-border);
    margin: 40px 0;
}

/* Post Tags */
.single-post-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--glass-border);
}

.tags-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--foreground);
}

.post-tag {
    font-size: 0.85rem;
    padding: 6px 14px;
    background: var(--surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--foreground-muted);
    transition: all var(--transition);
}

.post-tag:hover {
    background: var(--glass-hover);
    color: var(--foreground);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Share Buttons */
.single-post-share {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 28px;
}

.share-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--foreground);
}

.share-buttons {
    display: flex;
    gap: 10px;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--foreground-muted);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.share-btn:hover {
    background: var(--glass-hover);
    color: var(--foreground);
    border-color: rgba(255, 255, 255, 0.15);
}

.share-btn.copied {
    background: var(--green);
    color: #fff;
    border-color: var(--green);
}

/* ========== SIDEBAR ========== */
.single-post-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 100px;
}

.sidebar-card {
    padding: 24px;
    border-radius: var(--radius-lg);
}

.sidebar-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--glass-border);
}

/* Table of Contents */
.table-of-contents {
    font-size: 0.9rem;
}

.toc-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toc-item {
    list-style: none;
}

.toc-sub-item {
    padding-left: 16px;
}

.toc-link {
    display: block;
    padding: 8px 12px;
    color: var(--foreground-muted);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    border-left: 2px solid transparent;
}

.toc-link:hover {
    color: var(--foreground);
    background: var(--surface);
}

.toc-link.active {
    color: var(--accent-light);
    background: rgba(139, 34, 82, 0.1);
    border-left-color: var(--accent);
}

/* Author Card */
.author-card {
    text-align: center;
}

.author-card-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 16px;
    border: 3px solid var(--glass-border);
}

.author-card-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: 8px;
}

.author-card-bio {
    font-size: 0.85rem;
    color: var(--foreground-muted);
    line-height: 1.6;
}

/* Related Products */
.related-products {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.related-product-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    background: var(--surface);
    border-radius: var(--radius-md);
    color: var(--foreground-muted);
    transition: all var(--transition);
}

.related-product-link:hover {
    background: var(--glass-hover);
    color: var(--foreground);
}

.related-product-name {
    font-size: 0.9rem;
    font-weight: 500;
}

.related-products .btn {
    margin-top: 12px;
}

/* ========== RELATED POSTS ========== */
.related-posts-section {
    padding: 0 0 120px;
}

.related-posts-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 36px;
    flex-wrap: wrap;
    gap: 16px;
}

.related-posts-title {
    font-size: 1.8rem;
    color: var(--foreground);
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

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

@media (max-width: 640px) {
    .related-posts-grid {
        grid-template-columns: 1fr;
    }
}

.related-post-card {
    overflow: hidden;
    padding: 0;
}

.related-post-image {
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.related-post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--easing);
}

.related-post-card:hover .related-post-image img {
    transform: scale(1.05);
}

.related-post-content {
    padding: 20px;
}

.related-post-category {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-light);
    margin-bottom: 10px;
}

.related-post-title {
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.35;
    margin-bottom: 10px;
}

.related-post-title a {
    color: var(--foreground);
    transition: color var(--transition);
}

.related-post-title a:hover {
    color: var(--accent-light);
}

.related-post-date {
    font-size: 0.8rem;
    color: var(--foreground-subtle);
}

/* ========== ANIMATIONS ========== */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s var(--easing), transform 0.6s var(--easing);
}

[data-animate].animated {
    opacity: 1;
    transform: translateY(0);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .blog-hero {
        padding: 80px 0 60px;
    }

    .blog-hero-title {
        font-size: 2rem;
    }

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

    .blog-filter {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 8px;
        -webkit-overflow-scrolling: touch;
    }

    .blog-filter-btn {
        flex-shrink: 0;
    }

    .blog-card-content {
        padding: 20px;
    }

    .single-post-header {
        padding: 60px 0 40px;
    }

    .single-post-meta {
        flex-direction: column;
        gap: 16px;
    }

    .single-post-author {
        flex-direction: column;
        text-align: center;
    }

    .author-info {
        text-align: center;
    }

    .related-posts-header {
        flex-direction: column;
        text-align: center;
    }

    .related-posts-title {
        font-size: 1.5rem;
    }

    .single-post-sidebar {
        position: static;
    }
}

/* ========== DARK MODE ADJUSTMENTS ========== */
@media (prefers-color-scheme: dark) {
    .blog-card-image img,
    .related-post-image img {
        background: var(--bg-elevated);
    }
}

/* ========== NEWSLETTER SECTION ========== */
.blog-newsletter {
    padding: 0 0 120px;
}

.blog-newsletter-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    padding: clamp(32px, 5vw, 56px);
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, rgba(139, 34, 82, 0.15) 0%, rgba(184, 50, 128, 0.08) 100%);
    border: 1px solid rgba(139, 34, 82, 0.25);
}

@media (max-width: 768px) {
    .blog-newsletter-card {
        flex-direction: column;
        text-align: center;
    }
}

.blog-newsletter-content {
    flex: 1;
}

.blog-newsletter-content h2 {
    font-size: 1.8rem;
    color: var(--foreground);
    margin-bottom: 12px;
}

.blog-newsletter-content p {
    font-size: 1rem;
    color: var(--foreground-muted);
    max-width: 420px;
}

.blog-newsletter-form {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

@media (max-width: 480px) {
    .blog-newsletter-form {
        flex-direction: column;
        width: 100%;
    }

    .blog-newsletter-form input,
    .blog-newsletter-form button {
        width: 100%;
    }
}

.blog-newsletter-form input {
    min-width: 260px;
    padding: 14px 20px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--foreground);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    outline: none;
    transition: all var(--transition);
}

.blog-newsletter-form input::placeholder {
    color: var(--foreground-subtle);
}

.blog-newsletter-form input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Hide empty category cards */
.blog-card[data-category=""] {
    display: none;
}