/* =============================================================================
   Blog -- listing + single article, styled to match tools.css's visual
   language (same CSS variable tokens, same card/pill/share-button patterns)
   without depending on tools.css itself (blog/ is independent of tools/).
   ========================================================================== */

.blog-hero {
  padding: 56px 0 32px;
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(760px 420px at 82% 10%, var(--color-primary-soft), transparent 62%);
}

.blog-hero h1 { font-size: clamp(1.9rem, 3.2vw, 2.6rem); margin: 10px 0 12px; }
.blog-hero .lead { max-width: 640px; color: var(--color-text-muted); font-size: 1.05rem; line-height: 1.6; }

.breadcrumb { font-size: 0.84rem; color: var(--color-text-muted); margin-bottom: 14px; }
.breadcrumb a { color: var(--color-text-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span[aria-hidden] { margin: 0 6px; }

/* -- listing grid -- */

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  padding: 28px 0 64px;
}

@media (max-width: 900px) { .blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .blog-grid { grid-template-columns: 1fr; } }

.blog-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.blog-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }

.blog-card__hero { display: block; width: 100%; aspect-ratio: 16/9; overflow: hidden; background: var(--color-bg-alt); }
.blog-card__hero img { width: 100%; height: 100%; object-fit: cover; display: block; }

.blog-card__body { display: flex; flex-direction: column; gap: 8px; padding: 18px 20px 20px; flex: 1; }

.blog-card__category {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}

.blog-card__body h2 { font-size: 1.08rem; line-height: 1.35; margin: 2px 0 0; }
.blog-card__overview { font-size: 0.88rem; color: var(--color-text-muted); line-height: 1.55; margin: 0; flex: 1; }

.blog-card__meta { display: flex; align-items: center; gap: 8px; font-size: 0.78rem; color: var(--color-text-muted); margin-top: 4px; }
.blog-card__meta span:not(:last-child)::after { content: '·'; margin-left: 8px; }

.blog-empty { padding: 40px 0 80px; color: var(--color-text-muted); }

/* -- listing filters: search + category/tag pills -- */

.blog-filters { padding: 32px 0 0; display: flex; flex-direction: column; gap: 14px; }

.blog-search {
  position: relative;
  max-width: 420px;
}
.blog-search svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 17px; height: 17px; color: var(--color-text-muted); pointer-events: none; }
.blog-search input {
  width: 100%;
  padding: 11px 14px 11px 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.92rem;
  font-family: inherit;
}
.blog-search input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
.blog-search input::placeholder { color: var(--color-text-muted); }

.blog-filter-row { display: flex; flex-wrap: wrap; gap: 8px; }
.blog-filter-row--tags { padding-top: 2px; border-top: 1px dashed var(--color-border); margin-top: 2px; padding-top: 12px; }

.blog-filter-pill {
  font: inherit;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}
.blog-filter-pill:hover { border-color: var(--color-primary); color: var(--color-primary); }
.blog-filter-pill.is-active {
  color: var(--color-primary);
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  font-weight: 600;
}
.blog-filter-pill__count { color: var(--color-text-muted); font-weight: 400; }
.blog-filter-pill.is-active .blog-filter-pill__count { color: var(--color-primary); opacity: 0.75; }
.blog-filter-pill--tag { font-size: 0.78rem; padding: 5px 12px; }

/* -- single article -- */

.article-hero { padding: 40px 0 0; }
.article-hero__category {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}

.article-hero h1 { font-size: clamp(2rem, 4vw, 2.9rem); line-height: 1.2; margin: 0 0 16px; max-width: 900px; }

.article-hero__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--color-text-muted); margin-bottom: 28px; }
.article-hero__meta span:not(:last-child)::after { content: '·'; margin-left: 8px; }

.article-hero__image { width: 100%; height: 420px; overflow: hidden; border-radius: var(--radius-md); margin-bottom: 8px; }
.article-hero__image img { width: 100%; height: 100%; object-fit: cover; object-position: center; display: block; }

@media (max-width: 640px) {
  .article-hero__image { height: 220px; }
}

.article-body {
  max-width: 760px;
  margin: 36px auto 0;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-text);
}

.article-body h2 { font-size: 1.5rem; margin: 40px 0 14px; line-height: 1.3; }
.article-body h3 { font-size: 1.2rem; margin: 30px 0 12px; line-height: 1.35; }
.article-body p { margin: 0 0 18px; }
.article-body ul, .article-body ol { margin: 0 0 18px; padding-left: 22px; }
.article-body li { margin-bottom: 6px; }
.article-body a { color: var(--color-primary); text-decoration: underline; text-decoration-color: var(--color-primary-soft); text-underline-offset: 2px; }
.article-body a:hover { text-decoration-color: var(--color-primary); }
.article-body strong { color: var(--color-text); }
.article-body blockquote {
  margin: 24px 0;
  padding: 4px 20px;
  border-left: 3px solid var(--color-primary);
  color: var(--color-text-muted);
  font-style: italic;
}
.article-body img, .article-body svg { max-width: 100%; height: auto; display: block; margin: 0 auto; }
.article-body figure { margin: 28px 0; }
.article-body figure svg { width: 100%; }
.article-body figcaption { font-size: 0.84rem; color: var(--color-text-muted); text-align: center; margin-top: 10px; }
.article-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 0.94rem; }
.article-body th, .article-body td { border: 1px solid var(--color-border); padding: 8px 12px; text-align: left; }
.article-body th { background: var(--color-bg-alt); font-weight: 700; }
.article-body code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; background: var(--color-bg-alt); padding: 2px 6px; border-radius: 4px; }

.article-figure-panel {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 26px;
}

.article-cta {
  max-width: 760px;
  margin: 40px auto 0;
  padding: 24px 26px;
  border: 1px solid var(--color-primary);
  background: var(--color-primary-soft);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.article-cta__text strong { display: block; font-size: 1rem; color: var(--color-text); margin-bottom: 2px; }
.article-cta__text span { font-size: 0.86rem; color: var(--color-text-muted); }

.article-tags { max-width: 760px; margin: 32px auto 0; display: flex; flex-wrap: wrap; gap: 8px; }
.article-tags a {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  text-decoration: none;
}
.article-tags a:hover { color: var(--color-primary); border-color: var(--color-primary); }

.article-author {
  max-width: 760px;
  margin: 32px auto 0;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
}
.article-author__photo { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; flex: 0 0 auto; }
.article-author__body { display: flex; flex-direction: column; gap: 2px; }
.article-author__label { font-size: 0.76rem; color: var(--color-text-muted); }
.article-author__name { font-size: 0.98rem; font-weight: 700; color: var(--color-text); display: inline-flex; align-items: center; gap: 6px; }
.article-author__title { font-size: 0.84rem; color: var(--color-text-muted); }
.article-author__linkedin { display: inline-flex; color: var(--color-text-muted); }
.article-author__linkedin svg { width: 16px; height: 16px; }
.article-author__linkedin:hover { color: #0a66c2; }

.article-related {
  max-width: 760px;
  margin: 20px auto 0;
  padding: 20px 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}
.article-related h4 { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--color-text-muted); margin: 0 0 12px; }
.article-related ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.article-related a { font-size: 0.96rem; color: var(--color-primary); text-decoration: none; font-weight: 600; }
.article-related a:hover { text-decoration: underline; }

/* -- share buttons, same pattern as tools.css's .share-promo -- */

.share-promo { max-width: 760px; margin: 40px auto 0; }
.share-promo__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 24px 26px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-primary);
  background: var(--color-primary-soft);
}
.share-promo__text { display: flex; flex-direction: column; gap: 2px; min-width: 200px; }
.share-promo__text strong { font-size: 0.98rem; color: var(--color-text); }
.share-promo__text span { font-size: 0.84rem; color: var(--color-text-muted); }
.share-promo__buttons { display: flex; gap: 10px; flex-wrap: wrap; }
.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--color-surface);
  color: var(--color-text-muted);
  box-shadow: var(--shadow-sm);
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}
.share-btn svg { width: 18px; height: 18px; }
.share-btn:hover { transform: translateY(-2px); color: #fff; }
.share-btn--linkedin:hover { background: #0a66c2; }
.share-btn--x:hover { background: #000; }
.share-btn--facebook:hover { background: #1877f2; }
.share-btn--whatsapp:hover { background: #25d366; }
.share-btn--email:hover { background: var(--color-primary); }

@media (max-width: 560px) {
  .share-promo__inner { flex-direction: column; align-items: flex-start; }
}