:root { --ink: #273531; --muted: #58645f; --accent: #147d68; --line: #dfe6df; }
* { box-sizing: border-box; }
body { margin: 0; background: #fbfaf6; color: var(--ink); font: 17px/1.65 "Segoe UI", system-ui, sans-serif; }
a { color: #09604f; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.shell { max-width: 780px; padding: 24px; margin: auto; }
header, footer { display: flex; justify-content: space-between; gap: 16px; align-items: center; font-size: 14px; }
header { padding-bottom: 20px; border-bottom: 1px solid var(--line); }
header a { text-decoration: none; font-weight: 700; }
.eyebrow { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1 { font-size: clamp(38px, 6vw, 56px); line-height: 1.1; letter-spacing: -.04em; margin: 5px 0 12px; }
h2 { font-size: 23px; line-height: 1.25; margin: 32px 0 8px; }
main { padding: 30px 0 48px; }
main > p:first-of-type { color: var(--muted); font-size: 18px; }
.callout { padding: 16px 20px; background: #edf6f0; border-left: 4px solid var(--accent); border-radius: 4px; }
ul { padding-left: 23px; }
li { margin-bottom: 7px; }
footer { padding: 20px 0; border-top: 1px solid var(--line); color: var(--muted); }
@media (max-width: 540px) { .shell { padding: 18px; } header, footer { display: block; } header > span, footer > span { display: block; margin-top: 5px; } }