:root { color-scheme: light; font-family: system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif; color: #25332f; background: #f5f7f5; }
* { box-sizing: border-box; }
body { margin: 0; }
main { max-width: 800px; margin: 48px auto; padding: 44px 48px; background: #fff; border: 1px solid #dce4df; border-radius: 12px; }
h1 { font-size: clamp(1.65rem, 5vw, 2.2rem); line-height: 1.4; margin: 16px 0 24px; overflow-wrap: anywhere; }
h2 { font-size: 1.15rem; margin: 32px 0 12px; }
p { font-size: 1rem; line-height: 1.95; }
a { color: #1b6650; text-underline-offset: .22em; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid #458b72; outline-offset: 4px; }
.eyebrow, .date { color: #60736b; font-size: .88rem; }
.lead { font-size: 1.2rem; }
nav { border-top: 1px solid #dce4df; margin-top: 32px; padding-top: 24px; display: flex; flex-wrap: wrap; gap: 16px 24px; }
footer { color: #60736b; font-size: .82rem; margin-top: 32px; }
@media (max-width: 600px) { main { margin: 0; padding: 32px 22px; border: 0; border-radius: 0; min-height: 100vh; } }