:root {
  --border: #d8d8d8;
  --bg-old: #fdf6f6;
  --bg-new: #f4fbf6;
  --accent: #2a6f4d;
}

body {
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 80px;
  color: #222;
  line-height: 1.5;
}

h1 {
  font-size: 1.8rem;
}

section.example {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin-top: 32px;
}

section.example h2 {
  margin-bottom: 4px;
}

.teaser {
  color: var(--accent);
  font-weight: 600;
  margin: 4px 0 12px;
}

pre.snippet {
  background: #f6f6f6;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
  overflow-x: auto;
  font-size: 0.85rem;
}

.columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 12px;
}

.column {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
}

.column.old {
  background: var(--bg-old);
}

.column.new {
  background: var(--bg-new);
}

.column h3 {
  margin-top: 0;
  font-size: 1rem;
}

.column a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 0.9rem;
  text-decoration: none;
  color: #fff;
  background: var(--accent);
  border-radius: 4px;
}

.column a:hover {
  opacity: 0.85;
}

#crash-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 8px 12px;
  background: #b00020;
  color: #fff;
  font: 13px monospace;
  z-index: 9999;
}

@media (max-width: 680px) {
  .columns {
    grid-template-columns: 1fr;
  }
}