* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: #111827;
  background: #fff;
}

main {
  max-width: 420px;
  margin: 0 auto;
  padding: 48px 20px;
}

h1 { font-size: 28px; margin: 0 0 24px; }
.brand { font-size: 48px; letter-spacing: 2px; text-align: center; margin: 96px 0 40px; }
.muted { color: #6B7280; }
.button, .account {
  display: block;
  width: 100%;
  padding: 14px 16px;
  margin: 0 0 12px;
  border: 1px solid #CBD5E1;
  border-radius: 10px;
  background: #fff;
  color: #111827;
  font-size: 16px;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}
.button { border-color: #2563EB; color: #2563EB; }
.account { text-align: left; }
.account strong, .account span { display: block; }
.account span { color: #6B7280; font-size: 14px; }

.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 6px; font-size: 14px; color: #6B7280; }
.field input {
  width: 100%;
  padding: 12px;
  border: 1px solid #CBD5E1;
  border-radius: 10px;
  font-size: 16px;
}
.field-error { margin: 6px 0 0; color: #DC2626; font-size: 14px; }