:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, sans-serif; color: #17212b; background: #f6f8fa; }
body { max-width: 960px; margin: 0 auto; padding: 2rem; line-height: 1.5; }
header, main, footer, nav { margin-block: 1.25rem; }
header, main { padding: 1.5rem; border: 1px solid #d7dde3; border-radius: .75rem; background: #fff; }
h1, h2 { margin-top: 0; }
.eyebrow { margin: 0 0 .5rem; font-weight: 700; color: #425466; }
nav { display: flex; flex-wrap: wrap; gap: .5rem; }
nav a { padding: .4rem .65rem; border: 1px solid #8aa4bf; border-radius: .4rem; color: #0b4f81; text-decoration: none; }
nav a[aria-current="page"] { background: #0b4f81; color: #fff; }
.action-note, .context-note, .source-state, .boundary-note { padding: .75rem; border-left: 4px solid #8aa4bf; background: #f2f6fa; }
.boundary-note { border-color: #a65b00; }
footer { color: #52616b; font-size: .9rem; }