* { box-sizing: border-box; }
body { margin: 0; color: #1f2933; background: #f5f7f8; font: 16px/1.8 system-ui, sans-serif; }
main { max-width: 1000px; padding: 40px 24px; margin: auto; }
h1 { margin: 0 0 16px; font-size: clamp(24px,4vw,36px); line-height: 1.4; }
h2 { font-size: 21px; }
.eyebrow { color: #536976; font-size: 12px; letter-spacing: .15em; font-weight: 700; }
nav { display: flex; flex-wrap: wrap; gap: 14px; margin: 24px 0 40px; }
a { color: #144d6c; text-underline-offset: 4px; }
nav a { padding: 10px 16px; border: 1px solid #c7d3db; border-radius: 6px; background: white; }
pre { white-space: pre-wrap; overflow-wrap: anywhere; background: #e5ecef; padding: 20px; font-size: 14px; }
.preview-wide { max-width: 1200px; margin: auto; border: 1px solid #d7e0e4; }
.preview-narrow { width: min(100%,390px); border: 1px solid #d7e0e4; }