/* ═════════════════════════════════════════════════════════════════
   BLOG — STYLESHEET
   Konzistentní s .ev-* design systémem (pink #ff007f)
   Soubor: wwwroot/css/blog.css
   Připoj v _Host.cshtml: <link rel="stylesheet" href="~/css/blog.css" />
   ═════════════════════════════════════════════════════════════════ */

/* ─── Proměnné ──────────────────────────────────────────────── */
:root {
    --blog-primary: #ff007f;
    --blog-primary-dark: #d6005c;
    --blog-primary-soft: #fff5f9;
    --blog-text: #1a1a2e;
    --blog-text-muted: #6c757d;
    --blog-text-soft: #888;
    --blog-bg: #fff;
    --blog-bg-soft: #fafafa;
    --blog-border: #e9ecef;
    --blog-border-soft: #f0f0f0;
    --blog-radius: 12px;
    --blog-radius-sm: 8px;
    --blog-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    --blog-shadow-hover: 0 8px 24px rgba(255, 0, 127, 0.10);
    --blog-max-width: 720px;
}

/* ─── Article wrapper ───────────────────────────────────────── */
.blog-article {
    max-width: var(--blog-max-width);
    margin: 0 auto;
    padding: 32px 20px 80px;
    color: var(--blog-text);
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    line-height: 1.7;
}

/* ─── Breadcrumbs ───────────────────────────────────────────── */
.blog-breadcrumb {
    font-size: 0.85rem;
    color: var(--blog-text-muted);
    margin-bottom: 32px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

    .blog-breadcrumb a {
        color: var(--blog-text-muted);
        text-decoration: none;
        transition: color 0.15s;
    }

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

    .blog-breadcrumb .sep {
        color: #ccc;
        margin: 0 2px;
    }

    .blog-breadcrumb .current {
        color: var(--blog-text);
        font-weight: 500;
    }

/* ─── Header ────────────────────────────────────────────────── */
.blog-header {
    margin-bottom: 32px;
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.blog-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--blog-primary-soft);
    color: var(--blog-primary);
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    text-decoration: none;
    letter-spacing: 0.02em;
    transition: all 0.15s;
}

    .blog-tag:hover {
        background: var(--blog-primary);
        color: #fff;
    }

.blog-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--blog-text);
    margin: 0 0 16px;
    letter-spacing: -0.02em;
}

.blog-lead {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--blog-text-muted);
    margin: 0 0 24px;
    font-weight: 400;
}

.blog-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    color: var(--blog-text-soft);
    padding-bottom: 20px;
    border-bottom: 1px solid var(--blog-border);
}

    .blog-meta .meta-author {
        font-weight: 600;
        color: var(--blog-text);
    }

    .blog-meta .meta-sep {
        color: #ccc;
    }

/* ─── Cover image ───────────────────────────────────────────── */
.blog-cover {
    margin: 32px 0;
    border-radius: var(--blog-radius);
    overflow: hidden;
    box-shadow: var(--blog-shadow);
}

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

/* ─── Table of Contents ─────────────────────────────────────── */
.blog-toc {
    background: var(--blog-bg-soft);
    border: 1px solid var(--blog-border);
    border-left: 3px solid var(--blog-primary);
    border-radius: var(--blog-radius-sm);
    padding: 20px 24px;
    margin: 32px 0;
}

    .blog-toc strong {
        display: block;
        font-size: 0.78rem;
        font-weight: 700;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--blog-text-soft);
        margin-bottom: 12px;
    }

    .blog-toc ol {
        margin: 0;
        padding: 0;
        list-style: none;
        counter-reset: toc-counter;
    }

    .blog-toc li {
        counter-increment: toc-counter;
        padding: 4px 0;
    }

        .blog-toc li::before {
            content: counter(toc-counter) ".";
            color: var(--blog-primary);
            font-weight: 600;
            margin-right: 8px;
        }

        .blog-toc li a {
            color: var(--blog-text);
            text-decoration: none;
            transition: color 0.15s;
        }

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

/* ─── Body content (rendered markdown) ──────────────────────── */
.blog-content {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--blog-text);
}

    .blog-content > h2 {
        font-size: 1.7rem;
        font-weight: 700;
        line-height: 1.3;
        margin: 56px 0 16px;
        color: var(--blog-text);
        letter-spacing: -0.01em;
        scroll-margin-top: 80px;
    }

    .blog-content > h3 {
        font-size: 1.3rem;
        font-weight: 600;
        line-height: 1.4;
        margin: 40px 0 12px;
        color: var(--blog-text);
        scroll-margin-top: 80px;
    }

    .blog-content > h4 {
        font-size: 1.1rem;
        font-weight: 600;
        margin: 28px 0 8px;
        color: var(--blog-text);
    }

    .blog-content p {
        margin: 0 0 20px;
    }

    .blog-content strong {
        color: var(--blog-text);
        font-weight: 700;
    }

    .blog-content a {
        color: var(--blog-primary);
        text-decoration: underline;
        text-underline-offset: 3px;
        text-decoration-thickness: 1.5px;
        transition: color 0.15s;
    }

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

    .blog-content ul,
    .blog-content ol {
        margin: 0 0 24px;
        padding-left: 24px;
    }

    .blog-content li {
        margin: 8px 0;
        line-height: 1.7;
    }

        .blog-content li::marker {
            color: var(--blog-primary);
        }

    /* Blockquote */
    .blog-content blockquote {
        margin: 32px 0;
        padding: 16px 24px;
        border-left: 4px solid var(--blog-primary);
        background: var(--blog-primary-soft);
        border-radius: 0 var(--blog-radius-sm) var(--blog-radius-sm) 0;
        font-style: italic;
        color: var(--blog-text);
    }

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

    /* Inline code */
    .blog-content code {
        background: #f4f4f6;
        color: #c7256e;
        padding: 2px 6px;
        border-radius: 4px;
        font-family: 'JetBrains Mono', 'Consolas', monospace;
        font-size: 0.92em;
    }

    /* Code block */
    .blog-content pre {
        background: #1e1e2e;
        color: #f0f0f0;
        padding: 20px;
        border-radius: var(--blog-radius-sm);
        overflow-x: auto;
        margin: 24px 0;
        font-size: 0.92rem;
        line-height: 1.6;
    }

        .blog-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }

    /* Tables */
    .blog-content table {
        width: 100%;
        border-collapse: collapse;
        margin: 32px 0;
        background: #fff;
        border-radius: var(--blog-radius-sm);
        overflow: hidden;
        box-shadow: var(--blog-shadow);
    }

    .blog-content th {
        background: var(--blog-primary-soft);
        color: var(--blog-text);
        font-weight: 700;
        text-align: left;
        padding: 12px 16px;
        font-size: 0.92rem;
        border-bottom: 2px solid var(--blog-primary);
    }

    .blog-content td {
        padding: 12px 16px;
        border-bottom: 1px solid var(--blog-border-soft);
        font-size: 0.95rem;
    }

    .blog-content tr:last-child td {
        border-bottom: none;
    }

    /* Images in content */
    .blog-content img {
        max-width: 100%;
        height: auto;
        border-radius: var(--blog-radius-sm);
        margin: 24px 0;
        box-shadow: var(--blog-shadow);
    }

    /* HR separator */
    .blog-content hr {
        border: 0;
        height: 1px;
        background: var(--blog-border);
        margin: 48px auto;
        width: 60%;
    }

/* ─── FAQ section ───────────────────────────────────────────── */
.blog-faq {
    margin: 56px 0;
    padding: 32px 24px;
    background: var(--blog-bg-soft);
    border-radius: var(--blog-radius);
}

    .blog-faq h2 {
        font-size: 1.5rem;
        font-weight: 700;
        margin: 0 0 24px;
        color: var(--blog-text);
    }

.faq-item {
    background: #fff;
    border: 1px solid var(--blog-border);
    border-radius: var(--blog-radius-sm);
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.2s;
}

    .faq-item:hover {
        border-color: var(--blog-primary);
    }

    .faq-item summary {
        padding: 16px 20px;
        font-weight: 600;
        cursor: pointer;
        list-style: none;
        position: relative;
        padding-right: 48px;
        color: var(--blog-text);
        font-size: 1rem;
    }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "+";
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.5rem;
            color: var(--blog-primary);
            font-weight: 300;
            transition: transform 0.2s;
        }

    .faq-item[open] summary::after {
        content: "−";
    }

    .faq-item[open] summary {
        border-bottom: 1px solid var(--blog-border);
    }

    .faq-item > div {
        padding: 16px 20px;
        line-height: 1.7;
        color: var(--blog-text);
    }

        .faq-item > div p:last-child {
            margin-bottom: 0;
        }

/* ─── CTA section ───────────────────────────────────────────── */
.blog-cta {
    margin: 64px 0 48px;
    padding: 40px 32px;
    background: linear-gradient(135deg, var(--blog-primary) 0%, var(--blog-primary-dark) 100%);
    border-radius: var(--blog-radius);
    color: #fff;
    text-align: center;
    box-shadow: 0 12px 32px rgba(255, 0, 127, 0.20);
}

    .blog-cta h2 {
        font-size: 1.6rem;
        font-weight: 700;
        margin: 0 0 12px;
        color: #fff;
    }

    .blog-cta p {
        font-size: 1.05rem;
        margin: 0 0 24px;
        opacity: 0.95;
        line-height: 1.6;
    }

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

    .blog-cta .btn-primary,
    .blog-cta .btn-secondary {
        display: inline-block;
        padding: 12px 28px;
        border-radius: 10px;
        font-weight: 600;
        text-decoration: none;
        font-size: 0.98rem;
        transition: all 0.2s;
    }

    .blog-cta .btn-primary {
        background: #fff;
        color: var(--blog-primary);
    }

        .blog-cta .btn-primary:hover {
            background: var(--blog-text);
            color: #fff;
            transform: translateY(-2px);
        }

    .blog-cta .btn-secondary {
        background: transparent;
        color: #fff;
        border: 2px solid rgba(255, 255, 255, 0.4);
    }

        .blog-cta .btn-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.10);
        }

/* ─── Related articles ──────────────────────────────────────── */
.blog-related {
    margin: 64px 0 0;
    padding-top: 48px;
    border-top: 1px solid var(--blog-border);
}

    .blog-related h2 {
        font-size: 1.5rem;
        font-weight: 700;
        margin: 0 0 24px;
        color: var(--blog-text);
    }

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.related-card {
    display: block;
    background: #fff;
    border: 1px solid var(--blog-border);
    border-radius: var(--blog-radius);
    padding: 16px;
    text-decoration: none;
    color: var(--blog-text);
    transition: all 0.2s;
}

    .related-card:hover {
        border-color: var(--blog-primary);
        box-shadow: var(--blog-shadow-hover);
        transform: translateY(-2px);
    }

    .related-card img {
        width: 100%;
        aspect-ratio: 16 / 9;
        object-fit: cover;
        border-radius: var(--blog-radius-sm);
        margin-bottom: 12px;
    }

    .related-card h3 {
        font-size: 1rem;
        font-weight: 600;
        margin: 0 0 6px;
        line-height: 1.4;
    }

    .related-card p {
        font-size: 0.85rem;
        color: var(--blog-text-muted);
        margin: 0;
        line-height: 1.5;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

/* ═════════════════════════════════════════════════════════════
   BLOG LISTING (/blog)
   ═════════════════════════════════════════════════════════════ */

.blog-listing {
    max-width: 1100px;
    margin: 0 auto;
    padding: 32px 20px 80px;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    color: var(--blog-text);
}


/* ─── Tag filter ────────────────────────────────────────────── */
.listing-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--blog-border);
}

    .listing-tags .tag {
        display: inline-block;
        padding: 6px 16px;
        border: 1.5px solid var(--blog-border);
        background: #fff;
        color: var(--blog-text-muted);
        border-radius: 24px;
        font-size: 0.88rem;
        font-weight: 500;
        text-decoration: none;
        transition: all 0.15s;
    }

        .listing-tags .tag:hover {
            border-color: var(--blog-primary);
            color: var(--blog-primary);
            background: var(--blog-primary-soft);
        }

        .listing-tags .tag.active {
            background: var(--blog-primary);
            color: #fff;
            border-color: var(--blog-primary);
        }

/* ─── Cards grid ────────────────────────────────────────────── */
.listing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}

.listing-card {
    display: block;
    background: #fff;
    border-radius: var(--blog-radius);
    overflow: hidden;
    text-decoration: none;
    color: var(--blog-text);
    box-shadow: var(--blog-shadow);
    transition: all 0.25s;
    border: 1px solid transparent;
}

    .listing-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--blog-shadow-hover);
        border-color: var(--blog-primary);
    }

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

        .listing-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }

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

    .listing-card .card-body {
        padding: 20px 22px 22px;
    }

    .listing-card .card-tag {
        display: inline-block;
        font-size: 0.72rem;
        font-weight: 700;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--blog-primary);
        margin-bottom: 10px;
    }

    .listing-card .card-title {
        font-size: 1.2rem;
        font-weight: 700;
        line-height: 1.3;
        margin: 0 0 10px;
        color: var(--blog-text);
    }

    .listing-card .card-desc {
        font-size: 0.92rem;
        line-height: 1.6;
        color: var(--blog-text-muted);
        margin: 0 0 16px;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .listing-card .card-meta {
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 0.8rem;
        color: var(--blog-text-soft);
        padding-top: 12px;
        border-top: 1px solid var(--blog-border-soft);
    }

/* ─── Empty / loading states ────────────────────────────────── */
.listing-loading,
.listing-empty,
.blog-loading,
.blog-notfound {
    text-align: center;
    padding: 60px 20px;
    color: var(--blog-text-muted);
}

    .blog-notfound h1 {
        font-size: 1.8rem;
        color: var(--blog-text);
        margin-bottom: 12px;
    }

    .blog-notfound a {
        color: var(--blog-primary);
        text-decoration: none;
        font-weight: 600;
    }

/* ═════════════════════════════════════════════════════════════
   RESPONSIVE
   ═════════════════════════════════════════════════════════════ */

@media (max-width: 640px) {
    .blog-article {
        padding: 20px 16px 60px;
    }

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

        .blog-content > h2 {
            font-size: 1.45rem;
            margin-top: 40px;
        }

        .blog-content > h3 {
            font-size: 1.18rem;
        }

    .blog-cta {
        padding: 28px 20px;
    }

        .blog-cta h2 {
            font-size: 1.3rem;
        }

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

    .listing-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .listing-tags {
        gap: 6px;
    }

        .listing-tags .tag {
            padding: 5px 12px;
            font-size: 0.82rem;
        }
}