* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

main {
  max-width: 420px;
  text-align: center;
}

h1 {
  font-size: 48px;
  font-weight: 600;
  margin-bottom: 16px;
}

p {
  color: #666;
  margin-bottom: 32px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

input {
  padding: 12px 16px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 16px;
}

input:focus {
  outline: none;
  border-color: #111;
}

button {
  background: #111;
  color: white;
  padding: 12px;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
}

button:hover:not(:disabled) {
  background: #333;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

small {
  font-size: 13px;
  color: #999;
}

.success {
  font-size: 16px;
}

.error {
  color: #e00;
  font-size: 14px;
  margin-top: 8px;
}