@media (max-width: 768px) {
    .sidebar {
      width: 100%;
      position: relative;
    }
    .main-content {
      padding: 10px;
    }
  }
  
  html, body {
    height: 100%;
    margin: 0;
    height: 100vh;
    background-color: white;
  }

/* login */

body.login-page {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(120deg, #89f7fe, #66a6ff);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
  }

body.login-page-admin {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(120deg, #6ccfab, #56ab2f);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}


  .login-container input[type="text"],
  .login-container input[type="password"] { 
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-color: white;
    font-size: 1em;
    line-height: 1.5;
    box-sizing: border-box;
  }

  .login-container {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 0 15px rgba(0,0,0,0.2);
    text-align: center;
    width: 600px;
  }
  
  .login-container .logo {
    width: 600px;
    margin-bottom: 20px;
  }
  
  .login-container h2 {
    margin-bottom: 20px;
    color: #333;
  }
  
  .login-container input {
    display: block;
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border-radius: 8px;
    border: 1px solid #ccc;
  }

  .login-container button {
    background-color: #4e8cff;
    color: white;
    border: none;
    padding: 10px;
    width: 100%;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
/* PROVA */
    font-size: 1.2em;
  }
  
  .login-container button:hover {
    background-color: #3a6dd8;
  }
  
  .admin button {
    background-color: #50d36e; /* verde principale */
    color: white;
    border: none;
    padding: 10px;
    width: 100%;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
  }

  .admin button:hover {
    background-color: #1e7e34; /* verde più scuro per hover */
  }

  .register-link {
    margin-top: 10px;
/*    font-size: 0.9em; */
    font-size: 1.2em;
  }

  .error-message {
    color: rgb(173, 24, 24);
/* font-size: 0.9em; */
    font-size: 1.5em;
    margin-top: 10px;
  }