/* ==========================================================================
   Blog — Article Typography & Layout
   ========================================================================== */

/* ── Article Hero ── */
.article-hero {
  padding: calc(var(--space-2xl) + 2rem) var(--gutter) var(--space-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.article-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 600px;
  height: 1px;
  background: var(--color-accent-gradient);
  opacity: 0.3;
}

.article-hero__category {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-accent-blue);
  margin-bottom: var(--space-sm);
  display: block;
}

.article-hero__title {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-black);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-md);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.article-hero__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
}

.article-hero__meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-hero__divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-text-muted);
  opacity: 0.5;
}

/* ── Article Body / Prose ── */
.article {
  padding: var(--space-xl) 0;
}

.article__body {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Prose typography */
.article__body p {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.article__body h2 {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  line-height: var(--leading-snug);
}

.article__body h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  line-height: var(--leading-snug);
}

.article__body strong {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}

.article__body em {
  font-style: italic;
}

.article__body a {
  color: var(--color-accent-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--duration-fast);
}

.article__body a:hover {
  color: var(--color-accent-cyan);
}

/* Lists */
.article__body ul,
.article__body ol {
  margin-bottom: var(--space-md);
  padding-left: 1.5em;
  color: var(--color-text-secondary);
}

.article__body ul {
  list-style: disc;
}

.article__body ol {
  list-style: decimal;
}

.article__body li {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-xs);
}

.article__body li::marker {
  color: var(--color-accent-blue);
}

/* Blockquote */
.article__body blockquote {
  border-left: 3px solid var(--color-accent-violet);
  padding: var(--space-sm) var(--space-md);
  margin: var(--space-lg) 0;
  background: rgba(142, 104, 173, 0.06);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article__body blockquote p {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  font-style: italic;
  margin-bottom: 0;
  line-height: var(--leading-relaxed);
}

/* Callout / Highlight Box */
.article__callout {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin: var(--space-lg) 0;
  position: relative;
  overflow: hidden;
}

.article__callout::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--color-accent-gradient);
}

.article__callout-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent-blue);
  margin-bottom: var(--space-xs);
}

.article__callout p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: 0;
}

.article__callout p + p {
  margin-top: var(--space-sm);
}

/* Numbered Steps */
.article__step {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  align-items: flex-start;
}

.article__step-num {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--color-accent-gradient);
  color: var(--color-text-primary);
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  font-size: var(--text-sm);
}

.article__step-content h3 {
  margin-top: 0;
  margin-bottom: var(--space-2xs);
}

.article__step-content p {
  margin-bottom: 0;
}

/* Lead paragraph */
.article__lead {
  font-size: var(--text-lg) !important;
  color: var(--color-text-primary) !important;
  font-weight: var(--font-weight-light);
  line-height: var(--leading-relaxed) !important;
}

/* ── Article CTA Section ── */
.article-cta {
  text-align: center;
  padding: var(--space-xl) var(--gutter);
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.article-cta__rule {
  width: 60px;
  height: 2px;
  background: var(--color-accent-gradient);
  border: none;
  margin: 0 auto var(--space-lg);
}

.article-cta p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-md);
  font-weight: var(--font-weight-light);
}

.article-cta .btn {
  margin-top: var(--space-sm);
}

/* ==========================================================================
   Blog Index — Landing Page
   ========================================================================== */

/* ── Blog Hero ── */
.blog-hero {
  padding: calc(var(--space-2xl) + 2rem) var(--gutter) var(--space-lg);
  text-align: center;
}

.blog-hero__title {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-black);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-sm);
}

.blog-hero__subtitle {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-light);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 640px;
  margin: 0 auto;
}

/* ── Blog Grid ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.blog-card--featured,
.blog-newsletter {
  grid-column: 1 / -1;
}

/* ── Blog Card ── */
.blog-card {
  display: block;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-md);
  transition: border-color var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.blog-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.blog-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent-gradient);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.blog-card:hover::before {
  opacity: 1;
}

.blog-card__category {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-accent-blue);
  margin-bottom: var(--space-sm);
  display: block;
}

.blog-card__title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
  transition: color var(--duration-fast);
}

.blog-card:hover .blog-card__title {
  color: var(--color-accent-blue);
}

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

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

.blog-card__meta-divider {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-muted);
  opacity: 0.5;
}

.blog-card__read-more {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-blue);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--space-sm);
  transition: gap var(--duration-normal) var(--ease-out);
}

.blog-card:hover .blog-card__read-more {
  gap: 10px;
}

/* Featured card (first/latest post) */
.blog-card--featured {
  padding: var(--space-xl) var(--space-lg);
  background: linear-gradient(135deg, rgba(67, 169, 223, 0.04) 0%, rgba(142, 104, 173, 0.04) 100%);
}

.blog-card--featured .blog-card__title {
  font-size: var(--text-2xl);
}

/* ── Coming Soon Card ── */
.blog-card--coming-soon {
  border-style: dashed;
  opacity: 0.6;
}

.blog-card--coming-soon:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--color-border);
}

.blog-card--coming-soon::before {
  display: none;
}

.blog-card--coming-soon .blog-card__title {
  color: var(--color-text-secondary);
}

.blog-card--coming-soon:hover .blog-card__title {
  color: var(--color-text-secondary);
}

.blog-card__badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 4px 14px;
  margin-top: var(--space-sm);
}

/* ── Newsletter CTA ── */
.blog-newsletter {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
  margin-top: var(--space-md);
}

.blog-newsletter__title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-xs);
}

.blog-newsletter__desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.blog-newsletter__form {
  display: flex;
  gap: var(--space-xs);
  max-width: 440px;
  margin: 0 auto;
}

.blog-newsletter__form .form-input {
  flex: 1;
  min-width: 0;
}

/* ── Related Articles (blog post pages) ── */
.related-articles {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
}

.related-articles__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.related-articles__title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
}

.related-articles__back {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-blue);
  transition: opacity var(--duration-fast);
}

.related-articles__back:hover {
  opacity: 0.8;
}

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

/* ── Responsive ── */
@media (max-width: 1023px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 767px) {
  .article-hero {
    padding-top: calc(var(--space-2xl) + 1rem);
  }

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

  .article-hero__meta {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .article-hero__divider {
    display: none;
  }

  .article__step {
    flex-direction: column;
    gap: var(--space-sm);
  }

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

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

  .blog-card--featured {
    padding: var(--space-lg) var(--space-md);
  }

  .blog-card--featured .blog-card__title {
    font-size: var(--text-xl);
  }

  .blog-newsletter__form {
    flex-direction: column;
  }

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

  .related-articles__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }
}