/* =============================================================
   AICV.cz — Blog styly (světlý design, modrý gradient)
   Blog hero, card grid, article detail, share buttons, pagination.
   ============================================================= */

/* =============================================
   BLOG HERO — úvodní sekce výpisu
   ============================================= */

.blog-hero {
    padding: var(--space-10) 0 var(--space-8);
    background: var(--color-bg-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
    text-align: center; /* sjednoceno s ostatnimi hero sekcemi (cenik, ukazky) */
}

.blog-hero .section-label {
    margin-bottom: var(--space-3);
}

.blog-hero h1 {
    font-size: var(--font-size-4xl); /* sjednoceno s .section-title (bylo 5xl = vetsi) */
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--space-3);
}

.blog-hero p,
.blog-hero__subtitle {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

.blog-hero__meta {
    justify-content: center; /* meta row centered, kdyz je blog-hero centered */
}

.blog-hero__meta {
    display: flex;
    gap: var(--space-4);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--space-4);
}

.blog-hero__meta i {
    margin-right: 0.25rem;
}

/* =============================================
   FILTRAČNÍ LIŠTA
   ============================================= */

.blog-filter-bar {
    padding: var(--space-4) 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border-subtle);
    position: sticky;
    top: 64px;
    z-index: 10;
}

.blog-filter-bar__inner {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.blog-filter-pill {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border-subtle);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.blog-filter-pill:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.blog-filter-pill--active {
    color: #fff;
    background: var(--color-primary);
    border-color: var(--color-primary);
}

/* =============================================
   FEATURED ČLÁNEK
   ============================================= */

.blog-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-xl);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
    margin-bottom: var(--space-12);
}

.blog-featured:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    color: inherit;
}

.blog-featured__img {
    overflow: hidden;
    min-height: 280px;
}

.blog-featured__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-featured__img--gradient {
    background: linear-gradient(135deg, #2563eb 0%, #1e3a5f 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-featured__img--gradient i {
    font-size: 3rem;
    color: rgba(255, 255, 255, 0.3);
}

.blog-featured__body {
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-featured__badge {
    display: inline-block;
    background: var(--color-primary-light);
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    margin-bottom: var(--space-4);
    width: fit-content;
}

.blog-featured__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-snug);
    margin-bottom: var(--space-3);
    color: var(--color-text-primary);
}

.blog-featured__perex {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-4);
}

.blog-featured__meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    flex-wrap: wrap;
}

.blog-featured__meta i {
    margin-right: 0.2rem;
}

.blog-meta-dot {
    color: var(--color-text-disabled);
}

.blog-featured__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    margin-top: var(--space-4);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
}

/* =============================================
   BLOG GRID — 3 sloupce desktop, 1 mobil
   ============================================= */

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

/* =============================================
   BLOG CARD
   ============================================= */

.blog-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.blog-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.blog-card__link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.blog-card__link:hover {
    color: inherit;
}

.blog-card__img {
    height: 180px;
    overflow: hidden;
}

.blog-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.blog-card__img--gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card__img--gradient i {
    font-size: 2.5rem;
    color: rgba(255, 255, 255, 0.25);
}

.blog-card__body {
    padding: var(--space-5);
}

.blog-card__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-snug);
    margin-bottom: var(--space-2);
    color: var(--color-text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card__perex {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    flex-wrap: wrap;
}

.blog-card__meta i {
    margin-right: 0.15rem;
}

/* =============================================
   PAGINATION
   ============================================= */

.blog-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-12);
    padding: var(--space-4) 0;
}

.blog-pagination__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-subtle);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.blog-pagination__btn:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.blog-pagination__btn--disabled {
    color: var(--color-text-disabled);
    pointer-events: none;
}

.blog-pagination__numbers {
    display: flex;
    gap: var(--space-1);
}

.blog-pagination__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.blog-pagination__num:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.blog-pagination__num--active {
    background: var(--color-primary);
    color: #fff;
}

/* =============================================
   BLOG EMPTY STATE
   ============================================= */

.blog-empty {
    text-align: center;
    padding: var(--space-16) var(--space-4);
}

.blog-empty__icon {
    font-size: 3rem;
    color: var(--color-text-disabled);
    display: block;
    margin-bottom: var(--space-4);
}

.blog-empty h3 {
    color: var(--color-text-primary);
}

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

/* =============================================
   ARTICLE HERO (detail stránka)
   ============================================= */

.blog-article-hero {
    padding: var(--space-16) 0 var(--space-8);
    background: var(--color-bg-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
}

.blog-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.blog-breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
}

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

.blog-breadcrumb i {
    font-size: 0.65rem;
    color: var(--color-text-disabled);
}

.blog-breadcrumb span {
    color: var(--color-text-secondary);
}

.blog-article-hero__title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-4);
}

.blog-article-hero__perex {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-6);
    max-width: 700px;
}

.blog-article-hero__meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    flex-wrap: wrap;
}

.blog-article-hero__meta i {
    margin-right: 0.2rem;
}

.blog-article-hero__author {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-article-hero__avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #fff;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
}

/* =============================================
   ARTICLE CONTENT
   ============================================= */

.blog-article__cover {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

/* Cover uvnitr <section class="blog-article-hero"> — drive byl jako samostatny
   block po sekci, ted je uvnitr (zvolneji breathing room od meta liny). */
.blog-article-hero__cover {
    margin-top: var(--space-6);
    display: block;
}

.blog-article {
    max-width: 760px;
    margin: 0 auto;
}

.blog-article__content {
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-primary);
}

.blog-article__content h2 {
    font-size: var(--font-size-2xl);
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--color-primary-light);
}

.blog-article__content h3 {
    font-size: var(--font-size-xl);
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

.blog-article__content p {
    margin-bottom: var(--space-5);
    color: var(--color-text-primary);
}

.blog-article__content ul,
.blog-article__content ol {
    margin-bottom: var(--space-5);
    padding-left: var(--space-6);
}

.blog-article__content li {
    margin-bottom: var(--space-2);
    line-height: var(--line-height-relaxed);
}

.blog-article__content blockquote {
    margin: var(--space-6) 0;
    padding: var(--space-5) var(--space-6);
    border-left: 4px solid var(--color-primary);
    background: var(--color-primary-light);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--color-text-secondary);
}

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

.blog-article__content a:hover {
    color: var(--color-primary-hover);
}

.blog-article__content img {
    border-radius: var(--radius-md);
    margin: var(--space-6) 0;
}

.blog-article__content pre,
.blog-article__content code {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
}

.blog-article__content pre {
    background: #0f172a;
    color: #e2e8f0;
    padding: var(--space-5);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--space-6) 0;
}

.blog-article__content code {
    background: var(--color-bg-subtle);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-xs);
}

.blog-article__content pre code {
    background: none;
    padding: 0;
}

/* Citace ref */
.cite-ref a {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    font-size: 0.8em;
}

.cite-ref a:hover {
    text-decoration: underline;
}

/* =============================================
   SOURCES (zdroje na konci článku)
   ============================================= */

.blog-article__sources {
    margin-top: var(--space-12);
    padding: var(--space-6);
    background: var(--color-bg-subtle);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-subtle);
}

.blog-article__sources h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.blog-article__sources ol {
    padding-left: var(--space-5);
    margin: 0;
}

.blog-article__sources li {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
    line-height: var(--line-height-relaxed);
}

.blog-article__sources a {
    color: var(--color-primary);
}

/* =============================================
   SHARE BUTTONS
   ============================================= */

.blog-article__share {
    margin-top: var(--space-10);
    padding: var(--space-5);
    background: var(--color-bg-subtle);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-subtle);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.blog-article__share-label {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.blog-article__share-btns {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.blog-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    border: 1px solid var(--color-border-subtle);
    background: var(--color-bg-elevated);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.blog-share-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.blog-share-btn--linkedin:hover {
    border-color: #0a66c2;
    color: #0a66c2;
}

.blog-share-btn--twitter:hover {
    border-color: #1d9bf0;
    color: #1d9bf0;
}

.blog-share-btn--facebook:hover {
    border-color: #1877f2;
    color: #1877f2;
}

/* =============================================
   RELATED ARTICLES
   ============================================= */

.blog-related {
    margin-top: var(--space-16);
}

.blog-related__title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-6);
}

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

@media (max-width: 991px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .blog-featured__img {
        min-height: 200px;
        max-height: 260px;
    }
}

@media (max-width: 640px) {
    .blog-hero {
        padding: var(--space-12) 0 var(--space-8);
    }

    .blog-hero h1 {
        font-size: var(--font-size-3xl);
    }

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

    .blog-featured__body {
        padding: var(--space-5);
    }

    .blog-article-hero {
        padding: var(--space-12) 0 var(--space-6);
    }

    .blog-article-hero__title {
        font-size: var(--font-size-2xl);
    }

    .blog-article__content {
        font-size: var(--font-size-base);
    }

    .blog-article__share {
        flex-direction: column;
        align-items: flex-start;
    }

    .blog-card__img {
        height: 160px;
    }
}