* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: #F9FAFB;
  color: #111827;
  font-family: Inter, Segoe UI, Roboto, system-ui, sans-serif;
}
main {
  width: 100%;
  max-width: 560px;
  background: #FFFFFF;
  border: 1px solid #E5E7EB;
  border-radius: 12px;
  padding: 32px 28px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}
.brand {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #487FFF;
}
h1 {
  margin: 0 0 12px;
  font-size: 32px;
  line-height: 1.2;
  font-weight: 700;
}
p {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: #4B5563;
}