body {
  background-color: black;
  color: white;
  font-family: 'Google Sans Mono', monospace;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.container {
  max-width: 400px;
  width: 100%;
  padding: 2rem;
  text-align: center;
}

h1 {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

p {
  color: #a0aec0;
  font-size: 0.875rem;
  margin-bottom: 2rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input[type='email'] {
  width: 100%;
  padding: 0.75rem;
  background-color: transparent;
  border: 1px solid #2d3748;
  color: white;
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

input[type='email']:focus {
  border-color: #4a5568;
}

button {
  width: 100%;
  padding: 0.75rem;
  background-color: white;
  color: black;
  border: none;
  border-radius: 4px;
  font-family: inherit;
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

button:hover {
  background-color: #e2e8f0;
}

button:disabled {
  background-color: #718096;
  cursor: not-allowed;
}

#message {
  margin-top: 1rem;
  font-size: 0.875rem;
  min-height: 1.5em; /* keep space reserved */
}
.success {
  color: #48bb78;
}
.error {
  color: #f56565;
}