:root {
  --accent: #155e75;
  --ink: #1d1d1f;
  --muted: #55565a;
  --line: #e3e3e6;
  --bg: #ffffff;
  --bg-soft: #f7f7f8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 17px/1.65 Charter, Georgia, Cambria, "Times New Roman", serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
h1, h2 { font-family: Georgia, "Iowan Old Style", "Times New Roman", serif; }
.d-wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }
.d-head { border-bottom: 1px solid var(--line); padding: 18px 0; }
.d-head .d-wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.d-brand { font-family: Georgia, "Iowan Old Style", "Times New Roman", serif; font-weight: 700; font-size: 18px; color: var(--accent); text-decoration: none; letter-spacing: -0.01em; }
.d-btn {
  display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  padding: 11px 20px; border-radius: 4px; font-weight: 600; font-size: 15px;
  border: 1px solid var(--accent);
}
.d-btn:hover { opacity: .9; }
.d-hero { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 64px 0; text-align: left; }
.d-hero h1 { font-size: 36px; line-height: 1.2; margin: 0 0 14px; letter-spacing: -0.02em; }
.d-lead { font-size: 19px; color: var(--muted); margin: 0 0 26px; }
.d-main { padding: 44px 0 8px; }
.d-main h2 { font-size: 22px; margin: 38px 0 12px; letter-spacing: -0.01em; }
.d-main h2 { font-variant: small-caps; letter-spacing: .04em; }
p { margin: 0 0 16px; }
.d-cta {
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: 4px;
  padding: 28px; margin: 42px 0 12px; text-align: center;
}
.d-cta h2 { margin: 0 0 8px; border: 0; padding: 0; }
.d-cta p { color: var(--muted); }
.d-foot { border-top: 1px solid var(--line); margin-top: 48px; padding: 26px 0 40px; color: var(--muted); font-size: 14px; }
.d-foot a { color: var(--muted); }
@media (max-width: 600px) {
  .d-hero h1 { font-size: 27px; }
  .d-hero { padding: 40px 0; }
  body { font-size: 16px; }
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #ececee; --muted: #a6a7ad; --line: #33343a; --bg: #161719; --bg-soft: #1e1f22; }
}

/* Align the shared app-download band with the content column. */
:root { --app-cta-max-width: 680px; --app-cta-gutter: 20px; }