body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
  }
  
  .container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .login-box {
    background: #fff;
    padding: 60px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 400px;
    text-align: center;
  }
  
  h2 {
    color: #333;
    margin-bottom: 20px;
  }
  
  .textbox {
    margin: 15px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .textbox label {
    display: block;
    color: #333;
    margin-bottom: 5px;
  }
  
  .textbox input {
    width: 90%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    text-align: center;
  }
  
  .btn {
    background-color: #001f3f; /* Azul noche */
    color: #fff;
    padding: 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 90%;
  }
  
  .btn:hover {
    background-color: #001a35; /* Azul noche más oscuro */
  }
  
  /* Icono de mostrar contraseña */
  .icono {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 15px;
  }
  
  .icono label {
    margin-right: 10px;
  }
  
  .icono input[type="checkbox"] {
    width: 20px;
    height: 20px;
  }