* { box-sizing: border-box; }
html { color: #222; background: #faf9f6; font-family: system-ui, sans-serif; line-height: 1.65; }
body { margin: 0; }
header, main, footer { max-width: 900px; margin: auto; padding: 24px; }
header, footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
header { border-bottom: 1px solid #ddd; }
a { color: #175b42; text-underline-offset: 3px; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid #175b42; outline-offset: 4px; }
.brand { color: #222; font-size: 26px; font-weight: 700; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-bottom: 32px; }
h1 { font-size: clamp(1.6rem, 5vw, 2.3rem); line-height: 1.2; }
h2 { margin-top: 32px; font-size: 1.3rem; line-height: 1.4; }
p { overflow-wrap: anywhere; }
.download { padding: 20px 0; border-top: 1px solid #ddd; }
footer { border-top: 1px solid #ddd; }
@media (max-width: 480px) { header, main, footer { padding: 20px 16px; } }