:root {
  --mynapet-blue: #003fae;
  --mynapet-blue-foreground: #ffffff;
  --mynapet-gold: #dba935;
  --mynapet-card: #fffdf8;
  --mynapet-border-gold: rgb(225 181 62 / 0.4);
  --mynapet-bg: #faf9f5;

  --fg: #1f2937;
  --fg-muted: #6b7280;
  --rule: #e5e7eb;

  --tbd-bg: #fde4e4;
  --tbd-fg: #9b1c1c;

  --radius-lg: 1.5rem;
  --radius-md: 0.75rem;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100dvh;
  background: var(--mynapet-blue);
  color: var(--fg);
  font-family:
    ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "Helvetica Neue", "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Noto Sans JP", Meiryo, sans-serif;
  font-size: 15px;
  line-height: 1.85;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

article.card {
  background: var(--mynapet-card);
  border: 1px solid var(--mynapet-border-gold);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 16px rgb(0 0 0 / 0.08);
  padding: 28px 24px;
}

header.doc-header {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 20px;
  margin-bottom: 24px;
}

header.doc-header h1 {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 8px;
  line-height: 1.45;
  color: var(--mynapet-blue);
}

header.doc-header .meta {
  color: var(--fg-muted);
  font-size: 12px;
  margin: 0;
}

h2 {
  font-size: 16px;
  font-weight: 800;
  color: var(--mynapet-blue);
  margin: 32px 0 10px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  line-height: 1.5;
}

h3 {
  font-size: 14px;
  font-weight: 800;
  margin: 20px 0 6px;
  color: var(--fg);
}

p {
  margin: 0 0 14px;
}

ol,
ul {
  margin: 0 0 14px;
  padding-left: 1.5em;
}

ol li,
ul li {
  margin-bottom: 6px;
}

ol ol,
ol ul,
ul ol,
ul ul {
  margin-top: 6px;
  margin-bottom: 6px;
}

a {
  color: var(--mynapet-blue);
  font-weight: 700;
}

a:hover {
  text-decoration: underline;
}

.tbd {
  background: var(--tbd-bg);
  color: var(--tbd-fg);
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.92em;
}

footer.doc-footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  color: var(--fg-muted);
  font-size: 12px;
  text-align: right;
}