:root {
  color-scheme: light dark;
  --bg: #eef2f1;
  --ink: #17252b;
  --muted: #4d6068;
  --river: #1f6f78;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1c20;
    --ink: #e4ecea;
    --muted: #9fb3b8;
    --river: #6bbcc3;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body {
  font: 1.0625rem/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}
a { color: var(--ink); text-decoration-color: var(--river); text-underline-offset: 0.2em; text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--river); outline-offset: 3px; border-radius: 2px; }

.site-header, main, .site-footer { max-width: 40rem; margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
.site-header { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.5rem; padding-top: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--ink); text-decoration: none; font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif; font-weight: 600; font-size: 1.15rem; }
.brand svg { width: 1.9rem; height: auto; }
.site-header nav { margin-left: auto; }
.site-header nav a { margin-left: 1.25rem; padding: 0.25rem 0; color: var(--muted); text-decoration: none; border-bottom: 2px solid transparent; }
.site-header nav a:hover, .site-header nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--river); }

main { padding-top: 7vh; padding-bottom: 4rem; }
.mark { width: 4.5rem; height: auto; display: block; margin: 0 0 1.75rem; color: var(--ink); }
.mark .river, .brand .river { stroke: var(--river); }

h1, h2 { font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif; font-weight: 600; letter-spacing: -0.01em; }
h1 { margin: 0 0 1rem; font-size: clamp(2.25rem, 8vw, 3.5rem); line-height: 1.08; }
h2 { margin: 2.5rem 0 0.6rem; font-size: 1.5rem; line-height: 1.2; }
.lede { margin: 0 0 2rem; font-size: 1.3rem; line-height: 1.45; }
.rule { width: 3.5rem; height: 3px; margin: 0 0 2rem; border: 0; background: var(--river); border-radius: 2px; }
p, ul { margin: 0 0 1.1rem; max-width: 34rem; color: var(--muted); }
ul { padding-left: 1.25rem; }
li { margin-bottom: 0.4rem; }
li::marker { color: var(--river); }
strong { color: var(--ink); font-weight: 600; }
.contact dt { margin-top: 1.5rem; color: var(--ink); font-weight: 600; }
.contact dd { margin: 0.2rem 0 0; color: var(--muted); }
.contact a { color: var(--ink); font-size: 1.15rem; }

.site-footer { padding-top: 2rem; padding-bottom: 3rem; font-size: 0.9rem; color: var(--muted); }
.site-footer p { margin: 0; }