:root {
  --article-ink: #111827;
  --article-muted: #4b5563;
  --article-soft: #f3fbfb;
  --article-accent: #008282;
  --article-accent-soft: #b3e8e8;
  --article-border: #e5e7eb;
  --article-warning: #fff7ed;
}

* {
  box-sizing: border-box;
}

body.article-page {
  margin: 0;
  background: #ffffff;
  color: var(--article-ink);
  font-family: "Prompt", system-ui, sans-serif;
  line-height: 1.75;
}

.article-page a {
  color: var(--article-accent);
  font-weight: 600;
  text-decoration: none;
}

.article-page a:hover {
  text-decoration: underline;
}

.article-page .site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--article-border);
  background: rgba(255, 255, 255, 0.96);
}

.article-page .nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.article-page .brand {
  color: var(--article-accent);
  font-size: 1.45rem;
  font-weight: 700;
}

.article-page .nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 0.95rem;
}

.article-page .wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 42px 24px 72px;
}

.article-page .breadcrumb {
  margin-bottom: 28px;
  color: var(--article-muted);
  font-size: 0.92rem;
}

.article-page .breadcrumb ol {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
}

.article-page .breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: #9ca3af;
}

.article-page h1,
.article-page h2,
.article-page h3 {
  letter-spacing: 0;
  line-height: 1.25;
}

.article-page h1 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 5vw, 3.4rem);
}

.article-page h2 {
  margin: 42px 0 14px;
  font-size: clamp(1.4rem, 3vw, 1.95rem);
}

.article-page h3 {
  margin: 24px 0 10px;
  font-size: 1.18rem;
}

.article-page p {
  margin: 0 0 18px;
  color: #1f2937;
}

.article-page hr {
  border: 0;
  border-top: 1px solid var(--article-border);
  margin: 34px 0;
}

.article-page .meta {
  color: var(--article-muted);
  font-size: 0.96rem;
  margin-bottom: 28px;
}

.article-page .hero-image {
  width: 100%;
  border-radius: 12px;
  display: block;
  margin: 28px 0 10px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
}

.article-page figure {
  margin: 0;
}

.article-page figcaption,
.article-page .caption {
  color: var(--article-muted);
  font-size: 0.92rem;
  text-align: center;
  margin: 0 0 30px;
}

.article-page .tldr,
.article-page .note {
  background: var(--article-soft);
  border: 1px solid var(--article-accent-soft);
  border-radius: 12px;
  padding: 22px 24px;
  margin: 28px 0;
}

.article-page .note {
  background: var(--article-warning);
  border-color: #fed7aa;
}

.article-page .tldr h2 {
  font-size: 1.35rem;
  margin: 0 0 12px;
}

.article-page .tldr ul,
.article-page .content ul {
  margin: 0 0 20px;
  padding-left: 22px;
}

.article-page .tldr li,
.article-page .content li {
  margin-bottom: 8px;
  color: #1f2937;
}

.article-page .table-wrap {
  overflow-x: auto;
  margin: 22px 0 30px;
  border: 1px solid var(--article-border);
  border-radius: 12px;
}

.article-page table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  background: #ffffff;
}

.article-page th,
.article-page td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--article-border);
  color: #1f2937;
  text-align: left;
  vertical-align: top;
}

.article-page th {
  background: #f9fafb;
  color: #111827;
  font-weight: 700;
}

.article-page tr:last-child td {
  border-bottom: 0;
}

.article-page blockquote {
  margin: 28px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--article-accent);
  background: #f9fafb;
  color: #374151;
}

.article-page .faq {
  margin-top: 48px;
  border-top: 1px solid var(--article-border);
  padding-top: 24px;
}

.article-page details {
  border: 1px solid var(--article-border);
  border-radius: 10px;
  padding: 16px 18px;
  margin: 12px 0;
  background: #ffffff;
}

.article-page summary {
  cursor: pointer;
  font-weight: 700;
}

.article-page summary h3 {
  display: inline;
  margin: 0;
  font-size: 1rem;
}

.article-page .site-footer {
  border-top: 1px solid var(--article-border);
  color: var(--article-muted);
  text-align: center;
  padding: 28px 20px;
  font-size: 0.95rem;
}

@media (max-width: 640px) {
  .article-page .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .article-page .wrap {
    padding-top: 28px;
  }

  .article-page h1 {
    font-size: clamp(1.85rem, 10vw, 2.5rem);
  }
}