:root {
  font-family: Inter, system-ui, sans-serif;
  color: #17272a;
  background: #f6f8f7;
  line-height: 1.65;
}

body { margin: 0; }
main { max-width: 42rem; margin: auto; padding: 3rem 1.5rem; }
header { border-bottom: 1px solid #c6d5d1; padding-bottom: 1.75rem; }
.wordmark { color: #096250; font-weight: 700; margin: 0 0 1.25rem; }
h1, h2 { line-height: 1.18; }
h1 { margin: 0; font-size: clamp(2rem, 6vw, 3.5rem); letter-spacing: -0.045em; }
h2 { font-size: 1.35rem; }
.intro { color: #425a57; font-size: 1.15rem; margin-bottom: 0; }
section { padding-top: 1rem; }
a { color: #075e4d; text-underline-offset: 0.15em; }
a:focus-visible { outline: 2px solid #075e4d; outline-offset: 3px; }
footer { margin-top: 2.75rem; padding-top: 1.25rem; border-top: 1px solid #c6d5d1; }
nav { display: flex; flex-wrap: wrap; gap: 0.6rem 1.2rem; }
[aria-current="page"] { font-weight: 700; }