*,
*::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: "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: #1a1a1a;
  background: #f7f8fa;
}

.page {
  flex: 1;
  width: 100%;
  max-width: 40rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 2rem;
}

.header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #dde1e8;
}

.brand {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #111;
}

.domain {
  margin: 0.25rem 0 0;
  font-size: 0.95rem;
  color: #5c6570;
}

.intro h1 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
  font-weight: 600;
  color: #111;
}

.activity {
  margin: 0 0 2rem;
  color: #4a5560;
}

.legal h2 {
  margin: 0 0 1.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #5c6570;
}

.details {
  margin: 0;
}

.detail {
  margin-bottom: 1.25rem;
}

.detail dt {
  margin: 0 0 0.2rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #5c6570;
}

.detail dd {
  margin: 0;
  font-size: 1rem;
  color: #111;
}

.detail a {
  color: #1a5490;
  text-decoration: none;
}

.detail a:hover,
.detail a:focus-visible {
  text-decoration: underline;
}

.relationship {
  margin: 2rem 0 0;
  padding: 1rem 1.15rem;
  font-size: 0.95rem;
  color: #2d3740;
  background: #eef1f5;
  border-left: 3px solid #1a5490;
  border-radius: 0 4px 4px 0;
}

.footer {
  padding: 1.25rem 1.5rem 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: #5c6570;
}

.footer p {
  margin: 0;
}

@media (min-width: 640px) {
  .page {
    padding-top: 3.5rem;
  }

  .intro h1 {
    font-size: 1.5rem;
  }
}