:root {
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: HanmadiSansJP, sans-serif;
  line-height: 1.75;
  overflow-wrap: anywhere;
}

header, main, footer {
  width: min(100% - 40px, 760px);
  margin-inline: auto;
}

header { padding: 44px 0 22px; }
main { padding-bottom: 56px; }
footer { padding: 24px 0 44px; color: var(--sub); font-size: 0.875rem; }

h1 { margin: 0 0 8px; font-size: clamp(2rem, 7vw, 3rem); line-height: 1.2; }
h2 { margin: 34px 0 10px; font-size: 1.25rem; }
p, li { color: var(--sub); }
a { color: var(--action); text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid var(--primary); outline-offset: 4px; }
.brand { font-weight: 700; }
.brand a { color: var(--ink); }
nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
nav a {
  padding: 10px 14px;
  border-radius: 14px;
  background: var(--fill);
  font-weight: 700;
  text-decoration: none;
}
.notice, section {
  margin-top: 18px;
  padding: 20px;
  border-radius: 22px;
  background: var(--paper);
}
.notice { background: var(--primarySoft); }
.contact { display: inline-block; margin-block: 12px; font-weight: 700; }
dt { margin-top: 14px; font-weight: 700; }
dd { margin-left: 0; color: var(--sub); }