:root {
  color-scheme: light;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f3f5f7;
  color: #1f2933;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.card {
  width: min(92vw, 380px);
  padding: 2rem;
  background: white;
  border: 1px solid #d9e2ec;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgb(31 41 51 / 10%);
}

h1, h2 { margin-top: 0; }
h1 { margin-bottom: .25rem; font-size: 1.6rem; }
h2 { font-size: 1.1rem; }
.subtitle { margin-top: 0; color: #52606d; }

label { display: block; margin: 1rem 0 .35rem; font-weight: 600; }
input { box-sizing: border-box; width: 100%; padding: .7rem; border: 1px solid #9fb3c8; border-radius: 6px; font: inherit; }
button { width: 100%; margin-top: 1.25rem; padding: .72rem; border: 0; border-radius: 6px; background: #1769aa; color: white; font: inherit; font-weight: 700; cursor: pointer; }
button:hover { background: #0f5b96; }
.message { min-height: 1.4rem; color: #b42318; }