body {
  background:#0f172a;
  font-family:sans-serif;
}

.login-box {
  width:320px;
  margin:100px auto;
  padding:30px;
  background:#020617;
  border-radius:10px;
  color:#fff;
}

input {
  width:100%;
  padding:10px;
  margin:10px 0;
  border-radius:5px;
  border:none;
}

button {
  width:100%;
  padding:10px;
  background:#2563eb;
  color:#fff;
  border:none;
  border-radius:5px;
  cursor:pointer;
}

.error {
  background:#7f1d1d;
  padding:8px;
  border-radius:5px;
  margin-bottom:10px;
}