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

.blog-header {
    max-width: 720px;
    margin: 0 auto 56px;
}

.blog-header h1 {
    margin: 12px 0 16px;

    font-size: clamp(2.2rem, 4.5vw, 3.25rem);
    line-height: 1.1;
}

.blog-intro {
    margin: 0;

    color: var(--color-text-light);
    font-size: 1.125rem;
    line-height: 1.7;
}

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

    direction: ltr;
}

.blog-timeline {
    display: flex;
    align-items: center;
    gap: 16px;

    margin-bottom: 28px;

    color: var(--color-text-muted);
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.blog-timeline-line {
    flex: 1;
    height: 1px;

    background: linear-gradient(
        90deg,
        var(--color-accent),
        var(--color-border)
    );
}

.blog-timeline-end {
    color: var(--color-text-muted);
}

.blog-card {
    display: flex;
    flex-direction: column;

    height: 100%;
    padding: 28px;

    background: var(--color-surface);
    border: 1px solid rgba(15, 23, 42, .06);
    border-radius: var(--radius-xl);

    box-shadow: var(--shadow-card);

    text-decoration: none;

    transition:
        transform var(--transition-normal),
        box-shadow var(--transition-normal);
}

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

.blog-card-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;

    margin-bottom: 16px;
}

.blog-card-date {
    color: var(--color-text-muted);
    font-size: .875rem;
}

.blog-card-tag {
    display: inline-flex;
    align-items: center;

    padding: .25rem .65rem;

    background: var(--color-sand-100);
    border-radius: var(--radius-pill);

    color: var(--color-primary);
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.blog-card-title {
    margin: 0 0 12px;

    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -.02em;

    color: var(--color-heading);
}

.blog-card-excerpt {
    flex-grow: 1;
    margin: 0 0 20px;

    color: var(--color-text-light);
    font-size: .98rem;
    line-height: 1.65;
}

.blog-card-link {
    color: var(--color-primary);
    font-size: .92rem;
    font-weight: 600;
}

.blog-back {
    display: inline-flex;
    align-items: center;
    gap: .45rem;

    margin-bottom: 1.5rem;

    color: var(--color-primary);
    font-size: .92rem;
    font-weight: 600;
    text-decoration: none;
}

.blog-back:hover {
    text-decoration: underline;
}

/* Article */

.blog-page,
.blog-article {
    flex: 0 0 auto;
    padding: calc(var(--header-height) + 48px) 0 var(--space-120);
}

.blog-page ~ .site-footer,
.blog-article ~ .site-footer {
    margin-top: var(--space-64);
    flex-shrink: 0;
}

.blog-article > .container {
    padding-bottom: var(--space-48);
}

.blog-article-header {
    max-width: var(--container-text);
    margin: 0 auto 40px;
}

.blog-article-header h1 {
    margin: 12px 0 20px;

    font-size: clamp(2rem, 4vw, 2.85rem);
    line-height: 1.12;
}

.blog-article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;

    margin-bottom: 8px;

    color: var(--color-text-muted);
    font-size: .92rem;
}

.blog-article-lead {
    margin: 0;

    color: var(--color-text-light);
    font-size: 1.2rem;
    line-height: 1.65;
}

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

.blog-article-body h2 {
    margin: 2.5rem 0 1rem;

    font-size: 1.45rem;
}

.blog-article-body h3 {
    margin: 1.75rem 0 .75rem;

    font-size: 1.15rem;
}

.blog-article-body h2:first-child {
    margin-top: 0;
}

.blog-article-body p,
.blog-article-body li {
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.75;
}

.blog-article-body p {
    margin: 0 0 1.25rem;
}

.blog-article-body ul,
.blog-article-body ol {
    margin: 0 0 1.25rem;
    padding-left: 1.35rem;
}

.blog-article-body li {
    margin-bottom: .5rem;
}

.blog-article-body a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.blog-article-body blockquote {
    margin: 2rem 0;
    padding: 1.25rem 1.5rem;

    background: var(--color-sand-100);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;

    color: var(--color-heading);
    font-size: 1.05rem;
    font-style: italic;
    line-height: 1.65;
}

.blog-article-footer {
    max-width: var(--container-text);
    margin: 48px auto 0;
    padding: 32px 0 var(--space-64);

    border-top: 1px solid var(--color-border);
}

.blog-article-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;

    padding: 28px 32px;

    background: var(--color-surface);
    border: 1px solid rgba(15, 23, 42, .06);
    border-radius: var(--radius-xl);

    box-shadow: var(--shadow-sm);
}

.blog-article-cta p {
    margin: 0;

    max-width: 420px;

    color: var(--color-text-light);
    font-size: 1rem;
    line-height: 1.6;
}

.blog-article-cta strong {
    display: block;
    margin-bottom: 4px;

    color: var(--color-heading);
    font-family: var(--font-heading);
    font-size: 1.15rem;
}

.blog-post-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;

    max-width: var(--container-text);
    margin: var(--space-48) auto 0;
    padding-top: var(--space-48);

    border-top: 1px solid var(--color-border);
}

.blog-post-nav-link {
    display: flex;
    flex-direction: column;
    gap: 6px;

    padding: 20px 22px;

    background: var(--color-surface);
    border: 1px solid rgba(15, 23, 42, .06);
    border-radius: var(--radius-lg);

    text-decoration: none;

    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast),
        transform var(--transition-fast);
}

.blog-post-nav-link:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.blog-post-nav-link--next {
    grid-column: 1;
    align-items: flex-start;
    text-align: left;
}

.blog-post-nav-link--prev {
    grid-column: 2;
    align-items: flex-end;
    text-align: right;
}

.blog-post-nav-label {
    color: var(--color-text-muted);
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.blog-post-nav-title {
    color: var(--color-heading);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.35;
}

/* Oś czasu: nowsze ← lewo | prawo → starsze */
.blog-post-nav-link--next .blog-post-nav-label::before {
    content: "← ";
}

.blog-post-nav-link--prev .blog-post-nav-label::after {
    content: " →";
}

@media (max-width: 991px) {

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

}

@media (max-width: 768px) {

    .blog-page,
    .blog-article {
        padding: calc(var(--header-height) + 32px) 0 var(--space-96);
    }

    .blog-page ~ .site-footer,
    .blog-article ~ .site-footer {
        margin-top: var(--space-48);
    }

    .blog-article > .container {
        padding-bottom: var(--space-32);
    }

    .blog-article-footer {
        padding-bottom: var(--space-48);
    }

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

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

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

    .blog-post-nav-link--next,
    .blog-post-nav-link--prev {
        grid-column: 1;
        align-items: flex-start;
        text-align: left;
    }

    .blog-post-nav-link--prev .blog-post-nav-title,
    .blog-post-nav-link--prev .blog-post-nav-label {
        text-align: right;
        align-self: flex-end;
    }

}