:root {
  color-scheme: light;
  --ink: #13343b;
  --muted: #626c71;
  --primary: #21808d;
  --surface: #ffffff;
  --background: #f5f8fa;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--background);
  color: var(--ink);
  font: 16px/1.7 Inter, system-ui, sans-serif;
}

.article-shell {
  width: min(100% - 2rem, 820px);
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.article-nav {
  margin-bottom: 2rem;
}

.article-nav a,
.article-body a {
  color: var(--primary);
  font-weight: 600;
}

.article {
  padding: clamp(1.5rem, 5vw, 3.5rem);
  background: var(--surface);
  border: 1px solid rgba(94, 82, 64, 0.15);
  border-radius: 1.25rem;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

.article h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.1;
}

.article h2 {
  margin: 2rem 0 0.75rem;
  line-height: 1.2;
}

.article-meta {
  margin: 0 0 2rem;
  color: var(--muted);
}

.article-body code {
  padding: 0.15rem 0.35rem;
  border-radius: 0.3rem;
  background: #edf2f4;
}

.article-body pre {
  overflow-x: auto;
  padding: 1rem;
  border-radius: 0.75rem;
  background: #102a35;
  color: #e8f5f7;
}

.back-link {
  display: inline-block;
  margin-top: 2rem;
}