body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: #0b0f1a;
  color: white;
}

.container {
  max-width: 420px;
  margin: 80px auto;
  padding: 20px;
  background: #111827;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

input, button {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  border-radius: 8px;
  border: none;
}

input {
  background: #1f2937;
  color: white;
}

button {
  background: #22c55e;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background: #16a34a;
}

a {
  color: #60a5fa;
  cursor: pointer;
}