/* IAM article layout · BLOG_LAYOUT_ARCHITECTURE_SOP */
:root {
  --blog-bg: var(--iam-bg, #f5efe5);
  --blog-ink: var(--iam-ink, #243033);
  --blog-muted: rgba(36, 48, 51, .82);
  --blog-faint: rgba(36, 48, 51, .58);
  --blog-gold: var(--iam-gold, #a96b0a);
  --blog-line: rgba(105, 83, 57, .22);
  --blog-surface: rgba(255, 250, 242, .72);
}

.blog-page {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  overflow-x: clip;
  color: var(--blog-ink);
}

.blog-page > .aurora { z-index: -1; }

/* Blog index uses the same paper/ink system as article pages. */
.blog-index-page {
  background: var(--blog-bg);
}

.blog-index-categories-inner,
.blog-index-posts > div {
  width: 100%;
}

.blog-index-category-title {
  margin: 0;
  color: var(--blog-faint) !important;
  font: 700 14px/1.5 'JetBrains Mono', monospace !important;
  letter-spacing: .16em;
}

.blog-index-filters {
  gap: 8px !important;
  padding: 10px 0;
  border-top: 1px solid var(--blog-line);
  border-bottom: 1px solid var(--blog-line);
}

.blog-index-filter {
  min-height: 42px;
  padding: 8px 14px !important;
  border: 1px solid transparent !important;
  border-radius: 2px;
  background: transparent !important;
  color: var(--blog-muted) !important;
  font: 700 14px/1.5 'JetBrains Mono', monospace !important;
  letter-spacing: .04em;
  cursor: pointer;
}

.blog-index-filter:hover,
.blog-index-filter.is-active {
  border-color: rgba(169, 107, 10, .38) !important;
  background: rgba(169, 107, 10, .1) !important;
  color: var(--blog-gold) !important;
}

.blog-index-posts > div {
  gap: 34px !important;
}

.blog-index-card {
  min-width: 0;
  color: var(--blog-ink) !important;
  text-decoration: none !important;
}

.blog-index-card-image {
  border-color: var(--blog-line) !important;
  background: var(--iam-surface-1, #efe5d6) !important;
}

.blog-index-card-copy { min-width: 0; }

.blog-index-card-meta {
  color: var(--blog-gold) !important;
  font: 700 14px/1.5 'JetBrains Mono', monospace !important;
  letter-spacing: .08em;
}

.blog-index-card-title {
  color: var(--blog-ink) !important;
  font-size: 20px !important;
}

.blog-index-card-description {
  color: var(--blog-muted) !important;
  font-size: 14px !important;
  line-height: 1.75 !important;
}

.blog-index-language-link {
  color: var(--blog-muted) !important;
  font: 700 14px/1.5 'JetBrains Mono', monospace !important;
}

.blog-index-language-link.is-active,
.blog-index-language-link:hover { color: var(--blog-gold) !important; }

.blog-index-footer-brand h2 {
  color: var(--blog-ink) !important;
  font-size: 36px !important;
}

.blog-index-footer p { font-size: 14px !important; }

.blog-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  width: 100%;
  background: rgba(255, 250, 242, .9);
  border-bottom: 1px solid rgba(105, 83, 57, .22);
  backdrop-filter: blur(18px);
}

.blog-nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  max-width: 1440px;
  min-height: 68px;
  margin: 0 auto;
  padding: 0 32px;
}

.blog-brand {
  flex: 0 0 auto;
  color: var(--blog-ink);
  font: 800 italic 25px/1 'Space Grotesk', sans-serif;
  letter-spacing: -.08em;
  text-decoration: none !important;
}

.blog-brand span { color: var(--blog-gold); }

.blog-nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex: 1;
}

.blog-nav-links a,
.blog-nav-contact,
.blog-mobile-menu a {
  color: rgba(36, 48, 51, .66);
  font: 700 14px/1.2 'Space Grotesk', sans-serif;
  letter-spacing: .02em;
  text-decoration: none !important;
  transition: color .2s ease;
}

.blog-nav-links a:hover,
.blog-nav-links a.is-active,
.blog-nav-contact:hover,
.blog-mobile-menu a:hover,
.blog-mobile-menu a.is-active { color: var(--blog-gold); }

.blog-nav-links a.is-active {
  border-bottom: 2px solid var(--blog-gold);
  padding-bottom: 6px;
}

.blog-nav-contact {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}

.blog-menu-toggle,
.blog-mobile-menu { display: none; }

.blog-shell,
.blog-related,
.blog-footer {
  position: relative;
  z-index: 2;
}

.blog-shell {
  max-width: 1284px;
  margin: 0 auto;
  padding: 42px 32px 0;
}

.blog-classic-image {
  max-width: 800px;
  margin: 0 auto 48px;
}

.blog-classic-image img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(105, 83, 57, .2);
  border-radius: 4px;
  box-shadow: 0 18px 48px rgba(74, 56, 34, .12);
}

.blog-classic-image figcaption {
  margin-top: 10px;
  color: var(--blog-faint);
  font: 14px/1.5 'JetBrains Mono', monospace;
  letter-spacing: .12em;
  text-align: center;
}

.blog-article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 18px;
  align-items: stretch;
}

.blog-main-column { min-width: 0; }

.blog-article-header {
  margin: 0 0 26px;
  padding: 0;
  background: transparent !important;
}

.blog-article-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: var(--blog-gold);
  font: 700 14px/1.25 'JetBrains Mono', monospace;
  letter-spacing: .2em;
  text-transform: uppercase;
}

.blog-article-kicker > span:first-child {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blog-gold);
}

.blog-article-kicker > span:nth-child(3) { color: var(--blog-faint); }

.blog-article-title {
  max-width: 100%;
  margin: 0;
  color: var(--blog-ink) !important;
  font: 900 clamp(1.6rem, 3.2vw, 2.5rem)/1.3 'Space Grotesk', 'Noto Serif TC', sans-serif !important;
  letter-spacing: -.035em !important;
  overflow-wrap: anywhere;
}

.blog-article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-top: 16px;
  color: var(--blog-faint);
  font: 14px/1.5 'JetBrains Mono', monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.blog-toc-title,
.blog-sidebar-heading,
.blog-related-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--blog-gold);
  font: 700 14px/1.5 'JetBrains Mono', monospace;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.blog-toc {
  margin: 0 0 28px;
  padding: 17px 18px 14px;
  border: 1px solid var(--blog-line);
  background: rgba(255, 250, 242, .62);
}

.blog-toc-links { display: grid; gap: 5px; margin-top: 11px; }

.blog-toc-title { font-size: 16px; line-height: 1.5; }

.blog-toc-link {
  display: block;
  padding: 5px 0 5px 12px;
  border-left: 1px solid rgba(169, 107, 10, .38);
  color: var(--blog-muted) !important;
  font: 500 14px/1.7 'Noto Serif TC', serif;
  text-decoration: none !important;
}

.blog-toc-link.is-sub { padding-left: 24px; color: var(--blog-faint) !important; font-size: 14px; }
.blog-toc-link:hover { color: var(--blog-gold); border-color: var(--blog-gold); }

/* Existing article modules share the left column; no second hidden max-width. */
.blog-main-column > .article-body,
.blog-main-column > section,
.blog-main-column > article {
  width: 100% !important;
  max-width: none !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}

.blog-main-column .article-body {
  padding-top: 0 !important;
  padding-bottom: 24px !important;
  color: var(--blog-muted) !important;
  font-size: 18px !important;
  line-height: 1.9 !important;
}

.blog-main-column .article-body p { color: rgba(36, 48, 51, .82) !important; }
.blog-main-column .article-body p,
.blog-main-column .article-body li {
  font-size: inherit !important;
  line-height: 1.9 !important;
}
.blog-main-column .article-body h2,
.blog-main-column .article-body h3,
.blog-main-column .article-body strong { color: var(--blog-ink) !important; }
.blog-main-column .article-body em { color: var(--blog-gold) !important; }

.blog-main-column .article-body h2 {
  margin: 2.5em 0 1em !important;
  font-size: 1.25em !important;
  line-height: 1.45 !important;
  scroll-margin-top: 96px;
}

.blog-main-column .article-body h3 {
  font-size: 1.1em !important;
  line-height: 1.5 !important;
}

.blog-main-column .article-body h4 {
  font-size: 1.05em !important;
  line-height: 1.5 !important;
}

.blog-main-column .article-body img,
.blog-main-column .article-figure img {
  max-width: 100%;
}

.blog-main-column .article-figure { margin-top: 4px; }

.blog-main-column #gallery {
  display: grid !important;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px !important;
  width: 100% !important;
}

.blog-main-column .station-card { min-width: 0; }

.blog-sidebar {
  position: sticky;
  top: 90px;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: max-content;
  padding: 18px;
  border: 1px solid var(--blog-line);
  background: var(--blog-surface);
  align-self: start;
}

.blog-sidebar-heading { padding-bottom: 13px; border-bottom: 1px solid rgba(105, 83, 57, .16); font-size: 20px; line-height: 1.3; letter-spacing: 0; }
.blog-sidebar-heading > div { display: grid; gap: 4px; }
.blog-sidebar-eyebrow { color: var(--blog-gold); font: 700 14px/1.5 'JetBrains Mono', monospace; letter-spacing: .12em; }
.blog-sidebar-heading strong { color: var(--blog-ink); font: 700 20px/1.3 'Space Grotesk', sans-serif; }
.blog-project-list { display: grid; gap: 8px; margin-top: 13px; }

.blog-project-card {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  min-width: 0;
  padding: 9px 0;
  border-bottom: 1px solid rgba(105, 83, 57, .12);
  color: var(--blog-ink);
  text-decoration: none !important;
}

.blog-project-card:hover strong { color: var(--blog-gold); }
.blog-project-icon { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--blog-line); background: rgba(255, 255, 255, .64); }
.blog-project-icon img { display: block; width: 26px; height: 26px; object-fit: contain; }
.blog-project-copy { display: grid; min-width: 0; gap: 2px; }
.blog-project-copy strong { overflow: hidden; color: var(--blog-ink); font: 700 16px/1.5 'Space Grotesk', sans-serif; text-overflow: ellipsis; white-space: nowrap; }
.blog-project-copy small { color: var(--blog-gold); font: 700 14px/1.25 'JetBrains Mono', monospace; letter-spacing: .1em; text-transform: uppercase; }
.blog-project-copy em { overflow: hidden; color: var(--blog-faint); font: normal 14px/1.55 'Inter', sans-serif; text-overflow: ellipsis; white-space: normal; }
.blog-all-projects { display: flex; justify-content: space-between; gap: 12px; margin-top: 17px; padding-top: 0; color: var(--blog-gold); font: 700 14px/1.5 'JetBrains Mono', monospace; letter-spacing: .06em; text-decoration: none !important; }
.blog-related { max-width: 1284px; margin: 70px auto 0; padding: 0 32px 68px; }
.blog-related-heading { margin-bottom: 32px; color: var(--blog-ink); font-size: 14px; }
.blog-related-heading h2 { margin: 0; color: var(--blog-ink); font: 800 24px/1.3 'Space Grotesk', sans-serif; letter-spacing: -.03em; }
.blog-related-heading span { color: var(--blog-gold); }
.blog-related-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.blog-related-card { display: grid; grid-template-rows: auto 1fr; min-width: 0; border: 1px solid var(--blog-line); background: rgba(255, 250, 242, .62); text-decoration: none !important; }
.blog-related-card:hover { border-color: rgba(169, 107, 10, .7); }
.blog-related-card > img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.blog-related-copy { display: grid; align-content: start; gap: 5px; min-width: 0; padding: 16px; }
.blog-related-copy small { color: var(--blog-gold); font: 700 14px/1.2 'JetBrains Mono', monospace; letter-spacing: .12em; }
.blog-related-copy strong { display: -webkit-box; overflow: hidden; color: var(--blog-ink); font: 700 18px/1.45 'Noto Serif TC', serif; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.blog-related-copy em { display: -webkit-box; overflow: hidden; color: var(--blog-faint); font: normal 14px/1.35 'Inter', sans-serif; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }

.blog-footer { padding: 54px 32px 26px; border-top: 1px solid rgba(105, 83, 57, .22); background: rgba(245, 239, 229, .8); }
.blog-footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 28px; max-width: 1284px; margin: 0 auto; }
.blog-footer-brand .blog-brand { font-size: 36px; line-height: 1; }
.blog-footer-brand p { max-width: 260px; margin: 15px 0 0; color: var(--blog-faint); font: 14px/1.75 'Inter', sans-serif; }
.blog-footer-grid > div:not(.blog-footer-brand) { display: flex; flex-direction: column; gap: 10px; }
.blog-footer-grid h2 { margin: 0 0 5px; color: var(--blog-gold); font: 700 14px/1.5 'JetBrains Mono', monospace; letter-spacing: .16em; }
.blog-footer-grid a { color: var(--blog-muted); font: 14px/1.5 'Inter', sans-serif; text-decoration: none !important; }
.blog-footer-grid a:hover { color: var(--blog-gold); }
.blog-footer-languages ul,
.blog-footer-languages #langMenu {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px 18px;
  margin: 0;
  padding: 0 !important;
  list-style: none;
  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  opacity: 1 !important;
  position: static !important;
  transform: none !important;
  pointer-events: auto !important;
}
.blog-footer-languages li { min-width: 0; }
.blog-footer-languages a {
  display: block;
  padding: 4px 0 !important;
  border: 0 !important;
  background: transparent !important;
  color: var(--blog-muted) !important;
  font: 700 14px/1.5 'JetBrains Mono', monospace !important;
  text-transform: uppercase;
}
.blog-footer-languages a.is-active,
.blog-footer-languages a:hover { color: var(--blog-gold) !important; }
.blog-footer-bottom { display: flex; justify-content: space-between; gap: 16px; max-width: 1284px; margin: 42px auto 0; padding-top: 15px; border-top: 1px solid rgba(105, 83, 57, .18); color: rgba(36, 48, 51, .58); font: 14px/1.5 'JetBrains Mono', monospace; letter-spacing: .08em; text-transform: uppercase; }

@media (max-width: 900px) {
  .blog-nav-inner { padding: 0 20px; }
  .blog-nav-links, .blog-nav-contact { display: none; }
  .blog-menu-toggle { display: inline-flex; align-items: center; gap: 9px; margin-left: auto; padding: 9px 0; border: 0; background: transparent; color: var(--blog-ink); font: 700 14px/1 'JetBrains Mono', monospace; letter-spacing: .14em; }
  .blog-menu-toggle span:last-child { color: var(--blog-gold); font-size: 18px; line-height: .7; }
  .blog-mobile-menu { display: grid; gap: 0; padding: 4px 20px 15px; border-top: 1px solid rgba(105, 83, 57, .13); }
  .blog-mobile-menu[hidden] { display: none; }
  .blog-mobile-menu a { padding: 11px 0; border-bottom: 1px solid rgba(105, 83, 57, .1); }
  .blog-shell { padding: 28px 20px 0; }
  .blog-article-grid { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .blog-sidebar { position: static; }
  .blog-project-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 12px; }
  .blog-related { margin-top: 48px; padding: 0 20px 48px; }
  .blog-related-grid { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .blog-footer { padding-left: 20px; padding-right: 20px; }
  .blog-footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .blog-classic-image { margin-bottom: 34px; }
  .blog-classic-image figcaption { font-size: 14px; letter-spacing: .06em; }
  .blog-article-meta { font-size: 14px; }
  .blog-main-column .article-body { font-size: 17px !important; }
  .blog-main-column #gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .blog-footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px 18px; }
  .blog-footer-brand { grid-column: 1 / -1; }
  .blog-footer-bottom { flex-direction: column; gap: 8px; margin-top: 30px; }
}