:root {
  color-scheme: light;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: #f4f7fb;
  color: #17233c;
}

body {
  margin: 0;
}

.shell {
  width: min(760px, calc(100% - 32px));
  margin: 64px auto;
}

header {
  margin-bottom: 28px;
}

.eyebrow {
  color: #0f6cbd;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 8px 0;
  font-size: clamp(2rem, 6vw, 3.5rem);
}

.card {
  padding: 28px;
  border: 1px solid #d7e1ef;
  border-radius: 18px;
  background: white;
  box-shadow: 0 18px 45px rgb(23 35 60 / 10%);
}

.notice {
  padding: 12px;
  border-left: 4px solid #0f6cbd;
  background: #eef6fc;
}

dt {
  margin-top: 18px;
  font-weight: 700;
}

dd {
  margin: 6px 0 0;
  overflow-wrap: anywhere;
  color: #40516f;
  font-family: Consolas, monospace;
}