:root {
  --cover: #1c2b4a;
  --paper-on-cover: #eceef4;
  --ink: #191e2e;
  --muted: #555d70;
  --page: #eceef4;
  --surface: #fbfbfd;
  --line: #d6dae4;
  --link: #1f4fa3;
  --stamp: #b3261e;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --cover: #151f37;
    --ink: #e8eaf1;
    --muted: #a3a9ba;
    --page: #0f1320;
    --surface: #181d2c;
    --line: #2a3043;
    --link: #93b4ff;
    --stamp: #ff8a7a;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --cover: #151f37;
  --ink: #e8eaf1;
  --muted: #a3a9ba;
  --page: #0f1320;
  --surface: #181d2c;
  --line: #2a3043;
  --link: #93b4ff;
  --stamp: #ff8a7a;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.band {
  background: var(--cover);
  color: var(--paper-on-cover);
  padding: 40px 16px 48px;
}
.wrap { max-width: 680px; margin: 0 auto; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  color: var(--paper-on-cover);
  text-decoration: none;
}
.brand img { width: 64px; height: 64px; border-radius: 15px; }
.brand span { font: 600 30px/1.1 "IBM Plex Mono", ui-monospace, monospace; letter-spacing: -0.01em; }
.band p { margin: 20px 0 0; max-width: 34em; opacity: 0.92; }
main { padding: 8px 16px 64px; }
h1 { font-size: 32px; line-height: 1.2; margin: 40px 0 8px; }
h2 { font-size: 21px; line-height: 1.25; margin: 32px 0 6px; }
p, li { max-width: 38em; }
a { color: var(--link); text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid var(--link); outline-offset: 3px; border-radius: 4px; }
/* The help box is drawn like one of the app's visa stamps: a double rule in stamp ink. */
.contact {
  background: var(--surface);
  border: 1.5px solid color-mix(in srgb, var(--stamp) 55%, transparent);
  outline: 0.75px solid color-mix(in srgb, var(--stamp) 30%, transparent);
  outline-offset: -5px;
  border-radius: 14px;
  padding: 20px 24px;
  margin-top: 32px;
}
.contact h2 { margin-top: 0; }
.meta { color: var(--muted); }
footer {
  border-top: 1px solid var(--line);
  padding: 24px 16px 40px;
  color: var(--muted);
  font-size: 15px;
}