/* weisourcing article shared stylesheet
   Used by all SEO articles in /articles/<supplier>/
   Theme matches /weisourcing/<supplier>.html profile pages */

:root {
  --primary: #374151;
  --primary-d: #111827;
  --primary-l: #9CA3AF;
  --accent: #F97316;
  --accent2: #22D3EE;
  --bg: #F9FAFB;
  --card: #FFFFFF;
  --text: #111827;
  --muted: #4B5563;
  --line: #E5E7EB;
  --dark-bg: #030712;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* Top breadcrumb */
.topbar { background: var(--card); border-bottom: 1px solid var(--line); padding: 0.85rem 0; font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.topbar .wrap { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; display: flex; gap: 0.5rem; flex-wrap: wrap; }
.topbar a:hover { color: var(--primary); }
.topbar .sep { color: var(--primary-l); }

/* Header */
header.article-header { background: linear-gradient(135deg, var(--bg) 0%, var(--card) 100%); padding: 3.5rem 0 2.5rem; border-bottom: 1px solid var(--line); }
header.article-header .wrap { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.article-tag { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.35rem 0.95rem; background: var(--primary); color: white; border-radius: 999px; font-family: 'JetBrains Mono', monospace; font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 600; margin-bottom: 1.5rem; }
header.article-header h1 { font-family: 'Source Serif Pro', serif; font-size: clamp(1.85rem, 4.5vw, 3rem); line-height: 1.18; letter-spacing: -0.015em; color: var(--text); margin-bottom: 1.25rem; max-width: 980px; font-weight: 700; }
header.article-header .lead { font-size: 1.15rem; color: var(--muted); line-height: 1.65; max-width: 800px; margin-bottom: 1.75rem; }
header.article-header .meta-row { display: flex; gap: 2rem; flex-wrap: wrap; padding: 1.25rem 0 0; border-top: 1px solid var(--line); margin-top: 1.5rem; font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
header.article-header .meta-row strong { color: var(--text); font-weight: 600; }

/* Hero image */
.hero-image-block { max-width: 1100px; margin: 0 auto; padding: 2rem 1.5rem 0; }
.hero-image-block img { width: 100%; border-radius: 12px; aspect-ratio: 16/7; object-fit: cover; box-shadow: 0 12px 24px rgba(0,0,0,0.08); }
.hero-image-block .caption { margin-top: 0.85rem; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); text-align: center; }

/* Article body */
article.body { max-width: 760px; margin: 0 auto; padding: 3rem 1.5rem; font-size: 1.05rem; color: var(--text); line-height: 1.8; }
article.body > section { margin-bottom: 3rem; }
article.body h2 { font-family: 'Source Serif Pro', serif; font-size: clamp(1.4rem, 3vw, 1.85rem); font-weight: 700; color: var(--text); margin: 2.5rem 0 1.1rem; line-height: 1.25; letter-spacing: -0.01em; padding-top: 1rem; border-top: 1px solid var(--line); }
article.body h2:first-of-type { padding-top: 0; border-top: none; }
article.body h3 { font-family: 'Source Serif Pro', serif; font-size: 1.25rem; font-weight: 600; margin: 1.75rem 0 0.7rem; color: var(--text); line-height: 1.35; }
article.body h4 { font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--primary); font-weight: 600; margin: 1.5rem 0 0.6rem; }
article.body p { margin-bottom: 1.1rem; }
article.body strong { color: var(--text); font-weight: 600; }
article.body em { font-style: italic; color: var(--primary-d); }
article.body a { color: var(--primary); font-weight: 600; border-bottom: 1px solid var(--primary-l); }
article.body a:hover { color: var(--accent); border-color: var(--accent); }
article.body ul, article.body ol { margin: 0.75rem 0 1.25rem 1.6rem; }
article.body li { margin-bottom: 0.5rem; }

/* Inline figures */
article.body figure { margin: 1.75rem 0; }
article.body figure img { border-radius: 10px; width: 100%; border: 1px solid var(--line); box-shadow: 0 4px 12px rgba(0,0,0,0.04); }
article.body figcaption { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-top: 0.6rem; text-align: center; }

/* 2-column figure grid */
.fig-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; margin: 1.75rem 0; }
.fig-grid figure { margin: 0; }
.fig-grid img { aspect-ratio: 4/3; object-fit: cover; }

/* YouTube embed */
.video-embed { position: relative; width: 100%; aspect-ratio: 16/9; margin: 1.75rem 0; border-radius: 10px; overflow: hidden; box-shadow: 0 6px 16px rgba(0,0,0,0.08); }
.video-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-caption { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-top: 0.5rem; text-align: center; }

/* Pull quote */
.pullquote { border-left: 4px solid var(--accent); padding: 1rem 1.5rem; margin: 1.75rem 0; background: var(--card); font-family: 'Source Serif Pro', serif; font-style: italic; font-size: 1.15rem; color: var(--text); border-radius: 0 8px 8px 0; }
.pullquote .src { display: block; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-top: 0.85rem; font-style: normal; font-weight: 600; }

/* BOM table */
.bom-table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.95rem; background: var(--card); border-radius: 8px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,0.05); border: 1px solid var(--line); }
.bom-table th { background: var(--primary); color: white; text-align: left; padding: 0.8rem 1rem; font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; }
.bom-table td { padding: 0.7rem 1rem; border-top: 1px solid var(--line); vertical-align: top; }
.bom-table td:first-child { font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; color: var(--primary); font-weight: 600; white-space: nowrap; }
.bom-table tr:nth-child(even) { background: var(--bg); }
.bom-table caption { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.6rem; text-align: left; }

/* Comparison table (lighter weight for spec/grade tables) */
.cmp-table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.92rem; background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.cmp-table th { background: var(--bg); color: var(--text); text-align: left; padding: 0.7rem 0.95rem; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700; border-bottom: 2px solid var(--primary); }
.cmp-table td { padding: 0.65rem 0.95rem; border-top: 1px solid var(--line); vertical-align: top; }
.cmp-table td:first-child { font-weight: 600; color: var(--primary-d); }

/* Box callouts */
.callout { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--primary); padding: 1.4rem 1.6rem; margin: 1.5rem 0; border-radius: 0 10px 10px 0; }
.callout h4 { color: var(--primary); margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }
.callout.warn { border-left-color: #D97706; background: #FFFBEB; }
.callout.warn h4 { color: #92400E; }
.callout.success { border-left-color: #059669; background: #F0FDF4; }
.callout.success h4 { color: #065F46; }

/* FAQ */
.faq { margin: 2rem 0; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 10px; margin-bottom: 0.75rem; padding: 0; transition: all 0.2s; }
.faq details[open] { border-color: var(--primary); }
.faq summary { padding: 1.1rem 1.4rem; cursor: pointer; font-weight: 600; color: var(--text); list-style: none; display: flex; justify-content: space-between; align-items: center; font-family: 'Source Serif Pro', serif; font-size: 1.05rem; gap: 1rem; }
.faq summary::after { content: '+'; font-size: 1.5rem; color: var(--primary); transition: transform 0.2s; line-height: 1; flex-shrink: 0; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary::-webkit-details-marker { display: none; }
.faq .answer { padding: 0 1.4rem 1.25rem; color: var(--muted); line-height: 1.75; font-size: 0.97rem; }

/* Supplier card block */
.supplier-card-section { background: var(--card); padding: 3rem 0; border-top: 4px solid var(--primary); border-bottom: 1px solid var(--line); }
.supplier-card-section .wrap { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.supplier-section-label { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); font-weight: 600; margin-bottom: 0.6rem; }
.supplier-section-title { font-family: 'Source Serif Pro', serif; font-size: 1.55rem; font-weight: 700; color: var(--text); margin-bottom: 0.35rem; line-height: 1.3; }
.supplier-section-sub { color: var(--muted); margin-bottom: 1.75rem; font-size: 1rem; }
.supplier-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 1rem; align-items: start; }
@media (max-width: 900px) { .supplier-grid { grid-template-columns: 1fr; } }
.supplier-card { background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 1.5rem; }
.supplier-card.featured { background: var(--primary); color: white; border-color: var(--primary); border-left: 4px solid var(--accent); padding: 1.75rem; }
.supplier-card .pretitle { font-family: 'JetBrains Mono', monospace; font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); font-weight: 600; margin-bottom: 0.5rem; }
.supplier-card.featured .pretitle { color: var(--accent); }
.supplier-card h4 { font-family: 'Source Serif Pro', serif; font-weight: 700; font-size: 1.15rem; margin-bottom: 0.35rem; line-height: 1.25; }
.supplier-card.featured h4 { font-size: 1.4rem; color: white; }
.supplier-card .domain { font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; color: var(--muted); margin-bottom: 0.6rem; }
.supplier-card.featured .domain { color: rgba(255,255,255,0.8); }
.supplier-card p { font-size: 0.86rem; color: var(--muted); line-height: 1.6; margin-bottom: 0.8rem; }
.supplier-card.featured p { color: rgba(255,255,255,0.85); }
.supplier-card .visit { font-family: 'JetBrains Mono', monospace; font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--primary); font-weight: 600; }
.supplier-card.featured .visit { color: white; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 0.1rem; }

/* Related */
.related-section { padding: 3rem 0; background: var(--bg); }
.related-section .wrap { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.related-section h3 { font-family: 'Source Serif Pro', serif; font-size: 1.35rem; font-weight: 700; margin-bottom: 1.5rem; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
.related-card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1.4rem; transition: all 0.2s; display: block; }
.related-card:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 16px rgba(0,0,0,0.06); }
.related-card .label { font-family: 'JetBrains Mono', monospace; font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); font-weight: 600; margin-bottom: 0.4rem; }
.related-card h5 { font-family: 'Source Serif Pro', serif; font-weight: 600; font-size: 1.05rem; line-height: 1.35; color: var(--text); margin-bottom: 0.4rem; }
.related-card p { font-size: 0.85rem; color: var(--muted); line-height: 1.55; }

/* Disclaimer */
.disclaimer { background: #FEF3C7; padding: 2rem 0; color: #78350F; border-top: 1px solid #FDE68A; }
.disclaimer .wrap { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.disclaimer .label { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: #92400E; font-weight: 700; margin-bottom: 0.75rem; }
.disclaimer p { font-size: 0.88rem; line-height: 1.7; margin-bottom: 0.5rem; }
.disclaimer strong { color: #92400E; }
.disclaimer a { color: var(--primary); font-weight: 600; text-decoration: underline; }

/* Footer */
footer { background: #0F172A; color: rgba(255,255,255,0.7); padding: 2.5rem 0 1.5rem; }
footer .wrap { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
footer .footer-bottom { padding-top: 1rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(255,255,255,0.5); }
footer a:hover { color: white; }

/* ============ Image grid (for product photos in articles) ============ */
.product-img-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.product-img-grid figure { background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.product-img-grid img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; }
.product-img-grid figcaption { padding: 0.65rem 0.8rem; font-size: 0.78rem; color: var(--muted); line-height: 1.4; border-top: 1px solid var(--line); background: var(--bg); }
.inline-image { margin: 1.75rem 0; }
.inline-image img { width: 100%; border-radius: 10px; box-shadow: 0 8px 16px rgba(0,0,0,0.06); }
.inline-image figcaption { margin-top: 0.6rem; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); text-align: center; }

/* ============ Video embed ============ */
.video-embed { margin: 1.75rem 0; aspect-ratio: 16/9; border-radius: 12px; overflow: hidden; box-shadow: 0 8px 16px rgba(0,0,0,0.08); background: #000; }
.video-embed iframe { width: 100%; height: 100%; border: 0; }
.video-caption { margin-top: 0.6rem; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); text-align: center; }

/* ============ Spec comparison table ============ */
.spec-table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.92rem; background: var(--card); border-radius: 8px; overflow: hidden; border: 1px solid var(--line); }
.spec-table th { background: var(--primary); color: white; text-align: left; padding: 0.75rem 1rem; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; }
.spec-table td { padding: 0.65rem 1rem; border-top: 1px solid var(--line); vertical-align: top; }
.spec-table td:first-child { font-weight: 600; color: var(--primary-d); }
.spec-table tr:nth-child(even) { background: var(--bg); }


/* === Supplier product image blocks (added v4) === */
.product-images {
  margin: 2.5rem 0;
}
.product-images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.product-img-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.2s;
}
.product-img-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(0,0,0,0.07);
}
.product-img-card .img-wrap {
  background: #F8FAFC;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.product-img-card .img-wrap img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}
.product-img-card .caption {
  padding: 0.85rem 1rem;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.5;
  font-style: italic;
}
.product-img-card .caption strong {
  color: var(--primary);
  font-style: normal;
  font-weight: 600;
}

/* When only ONE image in a block — limit max width and center */
.product-images-grid.single {
  grid-template-columns: 1fr;
  max-width: 560px;
  margin: 0 auto;
}