body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #f4f7fb;
  color: #0f172a;
  font-family: ui-sans-serif, system-ui;
}

.card {
  width: min(420px, 90vw);
  background: #ffffff;
  border: 1px solid #d6dde8;
  border-radius: 12px;
  padding: 24px;
  box-sizing: border-box;
}

h1 {
  margin: 0 0 8px;
}

.muted {
  margin: 0 0 18px;
  color: #475569;
}

.primary {
  width: 100%;
  border: 0;
  border-radius: 8px;
  background: #166534;
  color: #fff;
  padding: 12px;
  font-weight: 600;
  cursor: pointer;
}

.status {
  margin-top: 12px;
  min-height: 20px;
  color: #0f766e;
}

.status.error {
  color: #b91c1c;
}