:root {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #0a0a0f;
  color: #e6e6f0;
  font-family: Georgia, serif;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app {
  width: min(90vw, 420px);
  padding: 2rem;
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}

.tagline {
  opacity: 0.6;
  margin-bottom: 2rem;
  font-style: italic;
}

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

label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.9rem;
  opacity: 0.8;
}

input {
  background: #16161f;
  border: 1px solid #333;
  color: inherit;
  padding: 0.6rem;
  border-radius: 4px;
  font-size: 1rem;
}

button {
  background: #2a1f3d;
  border: 1px solid #5a3f8f;
  color: inherit;
  padding: 0.6rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
}

button:hover {
  background: #3a2a55;
}

.mode-toggle {
  display: flex;
  gap: 0.5rem;
}

.mode-toggle button.active {
  background: #5a3f8f;
}

.error {
  color: #ff6b6b;
  font-size: 0.9rem;
}