:root {
  --primary: #25d878;
  --on-surface: #202124;
  --on-variant: #6f746f;
  --surface: #ffffff;
  --bg: #fafafa;
  --outline: #e6e8e6;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--on-surface);
  font-family: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    Meiryo, sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

header.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0 24px;
}

header.brand .logo {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--primary);
  display: inline-block;
}

header.brand .name {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.5px;
}

h1 {
  font-size: 26px;
  font-weight: 800;
  margin: 8px 0 4px;
}

.updated {
  color: var(--on-variant);
  font-size: 13px;
  margin-bottom: 28px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: 16px;
  padding: 24px;
}

h2 {
  font-size: 18px;
  font-weight: 800;
  margin: 28px 0 8px;
  padding-left: 10px;
  border-left: 4px solid var(--primary);
}

h2:first-of-type {
  margin-top: 4px;
}

p,
li {
  font-size: 15px;
  color: var(--on-surface);
}

ul,
ol {
  padding-left: 1.2em;
}

a {
  color: #0b8a45;
}

.note {
  margin-top: 28px;
  padding: 14px 16px;
  background: #effff0;
  border: 1px solid #cdeccd;
  border-radius: 12px;
  font-size: 13px;
  color: var(--on-variant);
}

footer {
  margin-top: 40px;
  text-align: center;
  color: var(--on-variant);
  font-size: 12px;
}

nav.docnav {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  font-size: 14px;
}