.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 58px;
  padding: 0 40px;
  border-bottom: 1px solid rgba(221, 214, 200, 0.8);
  background: rgba(248, 246, 240, 0.9);
  backdrop-filter: blur(14px);
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover {
  color: var(--ink);
}

.article-shell {
  width: min(760px, calc(100% - 40px));
  margin: 0 auto;
}

.article-page {
  padding: 52px 0 92px;
}

.article-page .article-kicker {
  margin: 0 0 30px;
  color: var(--accent-strong);
  font-size: 14px;
  font-weight: 760;
}

.article-page .article-back-link {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  color: var(--accent-strong);
  text-decoration: none;
}

.article-back-arrow {
  font-size: 22px;
  line-height: 1;
}

.article-back-label {
  max-width: 0;
  margin-left: 0;
  overflow: hidden;
  opacity: 0;
  white-space: nowrap;
  transform: translateX(-4px);
  transition: max-width 180ms ease, margin-left 180ms ease, opacity 140ms ease, transform 180ms ease;
}

.article-page h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(36px, 5vw, 54px);
  line-height: 1.08;
  letter-spacing: 0;
}

.article-meta {
  margin: 14px 0 0 !important;
  color: var(--muted) !important;
  font-size: 14px !important;
}

.article-toc {
  display: grid;
  gap: 7px;
  margin: 34px 0 38px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--accent-strong);
  font-size: 15px;
  font-weight: 650;
}

.article-toc a:hover {
  color: var(--ink);
}

.article-page h2 {
  margin: 48px 0 0;
  padding-top: 8px;
  font-size: clamp(24px, 3vw, 31px);
  line-height: 1.2;
}

.article-page h3 {
  margin: 28px 0 0;
  font-size: 20px;
  line-height: 1.25;
}

.article-page p,
.article-page li {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.76;
}

.article-page p {
  margin: 17px 0 0;
}

.article-page blockquote {
  margin: 24px 0;
  padding: 4px 0 4px 18px;
  border-left: 3px solid var(--warm);
}

.article-page blockquote p {
  color: var(--ink);
  font-size: 17px;
}

.article-page ul,
.article-page ol {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding-left: 24px;
}

.article-page code {
  padding: 1px 5px;
  border: 1px solid rgba(15, 118, 110, 0.16);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--accent-strong);
  font-size: 0.9em;
}

.article-page p a,
.article-page li a {
  color: var(--accent-strong);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.article-page .article-back-link:hover .article-back-label,
.article-page .article-back-link:focus-visible .article-back-label {
  max-width: 5em;
  margin-left: 8px;
  opacity: 1;
  transform: translateX(0);
}

.article-page pre {
  margin: 20px 0 0;
  padding: 17px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #242824;
}

.article-page pre code {
  padding: 0;
  border: 0;
  background: transparent;
  color: #f7f5ef;
  font-size: 14px;
  line-height: 1.7;
}

.article-figure {
  margin: 30px 0 34px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.52);
}

.article-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.article-image-link {
  display: block;
  cursor: zoom-in;
}

.article-video {
  display: block;
  width: 100%;
  max-height: 720px;
  border-radius: 6px;
  background: #111;
}

.article-figure-compact,
.article-figure:has(img[src^="assets/portfolio/"]),
.article-figure:has(.article-video) {
  width: fit-content;
  max-width: 100%;
  margin: 26px auto 30px;
  padding: 14px;
}

.article-figure-compact img,
.article-figure-compact .article-video,
.article-figure:has(img[src^="assets/portfolio/"]) img,
.article-figure:has(.article-video) .article-video {
  width: auto;
  max-width: 100%;
  max-height: min(520px, 70vh);
  height: auto;
  margin: 0 auto;
}

.article-image-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 30px 0 34px;
}

.article-image-grid .article-figure {
  width: auto;
  margin: 0;
  padding: 18px;
}

.topic-module {
  margin-top: 58px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.topic-module-heading h2 {
  margin: 0;
  padding: 0;
  font-size: clamp(24px, 3vw, 31px);
}

.topic-context-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.topic-context-card {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.68);
}

.topic-context-card:hover {
  border-color: rgba(15, 118, 110, 0.38);
}

.topic-context-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--warm);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.topic-context-card strong {
  display: block;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.35;
}

.topic-context-card p {
  margin: 8px 0 0 !important;
  color: var(--muted) !important;
  font-size: 15px !important;
  line-height: 1.55 !important;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(760px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.footer p {
  margin: 0 0 4px;
  color: var(--ink);
}

@media (max-width: 820px) {
  .footer,
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .article-image-grid {
    grid-template-columns: 1fr;
  }

  .site-header {
    gap: 10px;
    padding: 16px 20px;
  }

  .nav {
    width: 100%;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 2px;
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .article-back-label {
    transition: none;
  }
}