:root {
  --bg: #f7f6f3;
  --surface: #fff;
  --text: #1a1a1a;
  --muted: #555;
  --border: #e2e0db;
  --link: #1a5fb4;
  --link-hover: #0d3d7a;
  --focus: #1a5fb4;
  --radius: 12px;
  --max: 40rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121416;
    --surface: #1c1f23;
    --text: #f0f0ee;
    --muted: #b0b0a8;
    --border: #2e3338;
    --link: #6db3f2;
    --link-hover: #9dceff;
    --focus: #6db3f2;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover { color: var(--link-hover); }

a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  text-align: center;
}

.site-header { padding: 1.5rem 0 0.5rem; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text);
}

.brand:hover { color: var(--text); }

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 22%;
  display: block;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

main {
  flex: 1;
  padding: 1rem 0 2.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin-bottom: 1.25rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.85rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h2 {
  margin: 1.75rem 0 0.5rem;
  font-size: 1.15rem;
  line-height: 1.3;
}

.lede {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.faq dt { margin-top: 1.15rem; font-weight: 600; }
.faq dt:first-child { margin-top: 0; }
.faq dd { margin: 0.35rem 0 0; color: var(--muted); }

.policy p { margin: 0 0 0.85rem; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0 1.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer nav { display: inline; }
.site-footer a { margin-left: 0.35rem; }

.site-footer a + a::before {
  content: "·";
  margin-right: 0.35rem;
  color: var(--muted);
}