:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6a6a6a;
  --rule: #e4e4e4;
  --accent: #2f5d50;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121312;
    --fg: #ececec;
    --muted: #9a9a9a;
    --rule: #2c2e2c;
    --accent: #7fb3a1;
  }
}
:root[data-theme="dark"] {
  --bg: #121312;
  --fg: #ececec;
  --muted: #9a9a9a;
  --rule: #2c2e2c;
  --accent: #7fb3a1;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 1rem/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}
.bar { border-bottom: 1px solid var(--rule); }
.bar__inner, main, .foot__inner {
  max-width: 38rem;
  margin: 0 auto;
  padding: 0 16px;
}
.bar__inner { display: flex; align-items: center; height: 3.5rem; }
.brand {
  font-weight: 650;
  letter-spacing: -0.01em;
  font-size: 1.05rem;
  color: var(--fg);
  text-decoration: none;
}
main { padding-top: 3.5rem; padding-bottom: 4rem; }
h1 {
  font-size: clamp(2rem, 7vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 .75rem;
}
.tagline { color: var(--muted); font-size: 1.1rem; margin: 0 0 2.5rem; }
p { margin: 0 0 1.1rem; }
.notice {
  margin-top: 3rem;
  padding: 1.25rem 1.25rem .5rem;
  border: 1px solid var(--rule);
  border-radius: 8px;
}
.notice h2 { font-size: .95rem; margin: 0 0 .6rem; letter-spacing: .01em; }
.notice ul { margin: 0 0 1rem; padding-left: 1.2rem; }
.notice li { margin-bottom: .3rem; word-break: break-word; }
a { color: var(--accent); }
footer { border-top: 1px solid var(--rule); }
.foot__inner {
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
  color: var(--muted);
  font-size: .85rem;
}