/* ===================================
   BLOG STYLES
   =================================== */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Header vždy tmavý na blogových stránkach */
body.blog .header {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
}

.blog-hero {
    padding: 8rem 0 4rem;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.blog-hero .container {
    position: relative;
    z-index: 2;
}

.blog-hero .section-label {
    background: rgba(0, 212, 255, 0.15);
    color: var(--accent-blue);
}

.blog-hero .section-title {
    color: var(--white);
}

.blog-hero .section-subtitle {
    color: var(--gray-300);
    max-width: 720px;
}

.blog-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    color: var(--gray-400);
}

.blog-breadcrumb a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.blog-breadcrumb a:hover {
    color: var(--accent-blue);
}

.blog-breadcrumb span[aria-hidden="true"] {
    color: var(--gray-500);
}

.blog-breadcrumb .current {
    color: var(--accent-blue);
}

.blog-article-hero .blog-breadcrumb {
    color: var(--gray-500);
}

.blog-article-hero .blog-breadcrumb a {
    color: var(--primary-600);
    text-decoration: underline;
    text-decoration-color: transparent;
    text-underline-offset: 3px;
}

.blog-article-hero .blog-breadcrumb a:hover,
.blog-article-hero .blog-breadcrumb a:focus-visible {
    color: var(--primary-400);
    text-decoration-color: currentColor;
}

.blog-article-hero .blog-breadcrumb .current {
    color: var(--primary-900);
}

.blog-intro-content a {
    color: var(--primary-600);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.blog-intro-content a:hover {
    color: var(--primary-400);
}

.blog-intro {
    padding: 4rem 0;
    background: var(--white);
}

.blog-intro-content {
    max-width: 800px;
    margin: 0 auto;
}

.blog-intro-content p {
    font-size: 1.0625rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.blog-listing {
    padding: 0 0 var(--section-padding);
    background: var(--gray-50);
}

.blog-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.blog-category-btn {
    padding: 0.5rem 1.125rem;
    border-radius: 50px;
    border: 1px solid var(--gray-200);
    background: var(--white);
    color: var(--gray-600);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.blog-category-btn:hover,
.blog-category-btn.active {
    background: var(--primary-900);
    border-color: var(--primary-900);
    color: var(--white);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.blog-card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--gray-100);
}

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

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

.blog-card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-bottom: 0.75rem;
}

.blog-card-category {
    color: var(--primary-600);
    font-weight: 600;
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-900);
    margin-bottom: 0.75rem;
    line-height: 1.35;
}

.blog-card-title a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.blog-card-title a:hover {
    color: var(--primary-400);
}

.blog-card-excerpt {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 1.25rem;
    flex: 1;
}

.blog-card-link {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--primary-600);
    text-decoration: underline;
    text-decoration-color: transparent;
    text-underline-offset: 3px;
}

.blog-card-link:hover,
.blog-card-link:focus-visible {
    color: var(--accent-blue);
    text-decoration-color: currentColor;
}

.blog-empty {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--gray-200);
}

.blog-empty p {
    font-size: 1.0625rem;
    color: var(--gray-500);
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.7;
}

.blog-pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.blog-pagination a,
.blog-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.blog-pagination a {
    background: var(--white);
    color: var(--primary-600);
    border: 1px solid var(--gray-200);
}

.blog-pagination a:hover {
    background: var(--primary-900);
    color: var(--white);
    border-color: var(--primary-900);
}

.blog-pagination .current {
    background: var(--primary-900);
    color: var(--white);
}

/* Article page */
.blog-article-hero {
    padding: 7rem 0 3rem;
    background: var(--gray-50);
}

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

.blog-article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
    font-size: 0.9375rem;
    color: var(--gray-500);
    margin-bottom: 1.25rem;
}

.blog-article-meta strong {
    color: var(--primary-900);
    font-weight: 600;
}

.blog-article-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-100);
    color: var(--primary-600);
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.blog-article-header h1 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    color: var(--primary-900);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.blog-article-lead {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.7;
}

.blog-article-content {
    padding: 3rem 0 var(--section-padding);
    background: var(--white);
}

.blog-article-body {
    max-width: 720px;
    margin: 0 auto;
}

.blog-article-featured {
    margin-bottom: 2.5rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.blog-article-featured img {
    width: 100%;
    height: auto;
    display: block;
}

.blog-article-body h2 {
    font-size: 1.5rem;
    color: var(--primary-900);
    margin: 2.5rem 0 1rem;
}

.blog-article-body h3 {
    font-size: 1.25rem;
    color: var(--primary-900);
    margin: 2rem 0 0.75rem;
}

.blog-article-body p {
    font-size: 1.0625rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

.blog-article-body ul,
.blog-article-body ol {
    margin: 0 0 1.25rem 1.5rem;
    color: var(--gray-600);
    line-height: 1.8;
}

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

.blog-article-body a {
    color: var(--primary-600);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.blog-article-body a:hover,
.blog-article-body a:focus-visible {
    color: var(--primary-400);
}

.blog-article-body a:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
    border-radius: 2px;
}

.blog-share {
    max-width: 720px;
    margin: 2.5rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-200);
}

.blog-share-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-500);
    margin-bottom: 0.75rem;
}

.blog-share-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: #1877f2;
    color: var(--white);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.blog-share-link:hover {
    opacity: 0.9;
    color: var(--white);
}

.blog-related {
    padding: 4rem 0;
    background: var(--gray-50);
}

.blog-related .section-title {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    text-align: center;
}

.blog-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 960px;
    margin: 0 auto;
}

.blog-related-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-100);
    text-decoration: none;
    transition: box-shadow var(--transition-fast);
}

.blog-related-card:hover {
    box-shadow: var(--shadow-md);
}

.blog-related-card h3 {
    font-size: 1rem;
    color: var(--primary-900);
    margin-bottom: 0.5rem;
}

.blog-related-card p {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin: 0;
}

.blog-cta {
    padding: 4rem 0;
    background: var(--primary-900);
    text-align: center;
}

.blog-cta h2 {
    color: var(--white);
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 1rem;
}

.blog-cta p {
    color: rgba(255, 255, 255, 0.88);
    max-width: 560px;
    margin: 0 auto 1.5rem;
    line-height: 1.7;
}

.blog-cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

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

@media (max-width: 768px) {
    .blog-hero {
        padding-top: 7rem;
    }

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

    .blog-cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .blog-cta-actions .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* Article extras */
.blog-article-perex {
    font-size: 1.125rem;
    color: var(--gray-600);
    border-left: 4px solid var(--accent-amber);
    padding-left: 1.25rem;
    margin-bottom: 2rem;
    font-style: italic;
    line-height: 1.7;
}

.blog-info-box {
    background: var(--primary-50, #fff8ee);
    border-left: 4px solid var(--accent-amber);
    padding: 1rem 1.25rem;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 1.5rem 0;
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.7;
}

.blog-author-box {
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin: 2.5rem 0;
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.blog-author-icon {
    width: 3.5rem;
    height: 3.5rem;
    background: var(--primary-900);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--accent-amber);
}

.blog-author-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.blog-author-info h4 {
    margin: 0 0 0.25rem;
    font-size: 1rem;
    color: var(--primary-900);
}

.blog-author-info p {
    margin: 0;
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.6;
}

.blog-article-faq {
    margin: 2.5rem 0;
}

.blog-article-faq > h2 {
    margin-top: 0;
}

.blog-table-wrap {
    overflow-x: auto;
    margin: 1.5rem 0 2rem;
}

.blog-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.blog-table th {
    background: var(--primary-900);
    color: var(--white);
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
}

.blog-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-600);
}

.blog-table tr:nth-child(even) td {
    background: var(--gray-50);
}

.blog-table tfoot td {
    font-size: 0.8125rem;
    color: var(--gray-500);
    padding-top: 0.5rem;
    border-bottom: none;
    background: transparent;
}

@media (max-width: 768px) {
    .blog-author-box {
        flex-direction: column;
    }
}