body {
  background: #1a1a2e;
  color: #fff;
  font-family: Inter, Rubik, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.login-form {
  background: #22253b;
  padding: 24px;
  border-radius: 16px;
  width: 360px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: center;
}

.login-form h2 {
  margin: 0 0 8px 0;
  font-weight: 700;
}

.login-form p {
  margin: 0 0 12px 0;
  color: #ccc;
  font-weight: 400;
}

.login-form input[type="text"] {
  padding: 10px;
  font-size: 1rem;
  border-radius: 7px;
  border: none;
  outline: none;
  box-sizing: border-box;
  text-align: center;
}

.login-form button {
  background: #ffd600;
  color: #000;
  border: none;
  padding: 10px 24px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 7px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.login-form button:hover {
  background-color: #e6c200;
}

.error {
  color: #ff6666;
  margin-top: 10px;
  font-weight: 600;
}

.tg-code-btn {
  margin-top: 18px;
  display: inline-block;
  background-color: #0088cc;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 10px;
  text-decoration: none;
  user-select: none;
  transition: background-color 0.3s;
}

.tg-code-btn:hover {
  background-color: #006699;
}