body {
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #1e90ff, #2ecc71);
  height: 100vh;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-container {
  background-color: #ffffff;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0px 6px 20px rgba(0,0,0,0.15);
  width: 350px;
  text-align: center;
}

.title {
  color: #1e90ff;
  margin-bottom: 20px;
}

.login-form .form-group {
  margin-bottom: 15px;
  text-align: left;
}

.login-form label {
  display: block;
  font-weight: bold;
  color: #2ecc71;
  margin-bottom: 5px;
}

.login-form input {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
}

.btn {
  background-color: #1e90ff;
  color: #fff;
  border: none;
  padding: 12px;
  width: 100%;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.btn:hover {
  background-color: #2ecc71;
}

.footer {
  margin-top: 20px;
  font-size: 12px;
  color: #888;
}

.error-box {
  background-color: #ffdddd;
  color: #a94442;
  padding: 10px;
  border-radius: 6px;
  margin-bottom: 15px;
  font-size: 14px;
}