body {
      font-family: Arial, sans-serif;
    }
    .hero {
      background: #f8f9fa;
      text-align: center;
      padding: 80px 20px;
    }
    footer {
      background: #212529;
      color: #fff;
      padding: 20px 0;
      text-align: center;
    }
    /* Make dropdown look cleaner */
    .dropdown-menu {
      min-width: 200px;
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }
    .dropdown-menu .dropdown-header {
      font-weight: 600;
    }
 
    .sidebar-card {
      background: #fff;
      border-radius: 12px;
      box-shadow: 0 4px 8px rgba(0,0,0,0.05);
      padding: 20px;
    }
    .sidebar-card img {
      width: 60px;
      height: 60px;
      object-fit: cover;
      border-radius: 50%;
      margin-bottom: 10px;
    }
    .sidebar-card h6 {
      margin: 0;
    }
    .sidebar-nav a {
      display: block;
      padding: 10px;
      margin: 4px 0;
      border-radius: 6px;
      text-decoration: none;
      color: #212529;
      transition: 0.2s;
    }
    .sidebar-nav a.active,
    .sidebar-nav a:hover {
      background: #f0f2f5;
      color: #0d6efd;
    }
    .sidebar-nav a.text-danger:hover {
      background: #fbeaea;
      color: #dc3545;
    }
    .content-card {
      background: #fff;
      border-radius: 12px;
      box-shadow: 0 4px 8px rgba(0,0,0,0.05);
      padding: 20px;
    }
    .profile-img {
      width: 100px;
      height: 100px;
      object-fit: cover;
      border-radius: 50%;
      margin-bottom: 10px;
    }
    .btn-save {
      background: #28a745;
      color: #fff;
      border-radius: 20px;
      padding: 8px 20px;
    }
    .btn-save:hover {
      background: #218838;
    }
  .login-card {
      max-width: 400px;
      margin: 80px auto;
      background: #fff;
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      padding: 30px;
    }
    .login-card h4 {
      margin-bottom: 20px;
    }
    .btn-custom {
      background: #0d6efd;
      color: #fff;
      border-radius: 25px;
    }
    .btn-custom:hover {
      background: #0b5ed7;
    }

    .register-card {
      max-width: 450px;
      margin: 60px auto;
      background: #fff;
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      padding: 30px;
    }
    .register-card h4 {
      margin-bottom: 20px;
    }
    .btn-custom {
      background: #198754;
      color: #fff;
      border-radius: 25px;
    }
    .btn-custom:hover {
      background: #157347;
    }