:root {
  color-scheme: dark;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #101214;
  color: #f5f7fa;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  background: #101214;
}

main {
  width: min(420px, calc(100vw - 32px));
}

h1 {
  margin: 0 0 18px;
  font-size: 1.35rem;
  font-weight: 650;
}

form {
  display: grid;
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  color: #cbd3dc;
  font-size: 0.92rem;
}

input {
  box-sizing: border-box;
  width: 100%;
  border: 1px solid #303944;
  border-radius: 8px;
  padding: 12px;
  background: #171b20;
  color: #ffffff;
  font: inherit;
}

button {
  border: 0;
  border-radius: 8px;
  padding: 12px 14px;
  background: #4f8cff;
  color: #ffffff;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

.secondary {
  background: #252b33;
}

.error {
  border: 1px solid #8b3138;
  border-radius: 8px;
  padding: 10px 12px;
  background: #2a1518;
  color: #ffd7da;
  margin: 0 0 14px;
}

.muted {
  color: #a7b0bc;
  font-size: 0.9rem;
  line-height: 1.45;
}

.stack {
  display: grid;
  gap: 14px;
}