body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.gate {
  max-width: 22rem;
  width: 100%;
  text-align: center;
}

.gate .logo-mark {
  width: 3rem;
  height: 3rem;
  margin: 0 auto 1rem;
}

.gate h1 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 0.75rem;
}

.gate p {
  margin: 0 0 1.25rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.gate form {
  display: flex;
  gap: 0.5rem;
}

.gate input {
  flex: 1;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  color: var(--color-text);
  font: inherit;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-align: center;
}

.gate input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.gate button[type="submit"] {
  background: var(--color-primary);
  color: var(--color-primary-fg);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0 1.1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.gate .err {
  color: #f67d7d;
  margin-top: 1rem;
}