body {
  font-family: Arial, sans-serif;
  background: linear-gradient(to right, #e0f7fa, #fffde7);
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.login-container {
  background: rgba(255, 255, 255, 0.85);
  padding: 30px 25px;
  border-radius: 15px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  width: 350px;
  text-align: center;
}

.login-container h2 {
  margin-bottom: 25px;
  color: #37474f;
}

.input-group {
  position: relative;
  margin: 15px 0;
}

/* Icon trái: user, lock */
.input-group i:not(#togglePassword) {
  position: absolute;
  top: 50%;
  left: 15px;
  transform: translateY(-50%);
  color: #607d8b;
  font-size: 16px;
}

.input-group input {
  width: 100%;
  padding: 12px 15px 12px 42px;
  border-radius: 30px;
  border: 1px solid #ccc;
  background-color: #f9fbe7;
  font-size: 15px;
  color: #333;
  box-sizing: border-box;
}

/* Icon mắt bên phải */
.password-group #togglePassword {
  position: absolute;
  top: 50%;
  right: 15px;
  transform: translateY(-50%);
  color: #607d8b;
  cursor: pointer;
  font-size: 16px;
}

.login-container button {
  width: 100%;
  padding: 12px;
  margin-top: 15px;
  background: linear-gradient(to right, #4caf50, #81c784);
  color: white;
  border: none;
  border-radius: 30px;
  font-weight: bold;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.3s;
}

.login-container button:hover {
  background: linear-gradient(to right, #43a047, #66bb6a);
}

.login-container a {
  display: block;
  margin-top: 12px;
  color: #00796b;
  text-decoration: none;
  font-size: 14px;
}

.login-container a:hover {
  text-decoration: underline;
}

.login-container img {
  margin-top: 15px;
  width: 220px;
}