body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #ffffff;
    padding: 15px 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

header .logo img {
    width: 100px;
}

nav {
    display: flex;
    align-items: center;
}

nav a {
    margin: 0 15px;
    text-decoration: none;
    color: #333;
    font-weight: bold;
    font-size: 0.9rem;
}

nav a.login, nav a.register {
    color: #27ae60;
}

nav .cart-btn {
    background-color: #27ae60;
    color: white;
    padding: 10px 15px;
    border-radius: 5px;
    display: flex;
    align-items: center;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s;
}

nav .cart-btn:hover {
    background-color: #219150;
}

nav .cart-btn img {
    width: 20px;
    margin-right: 8px;
}
  .login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
  }
  .card {
    max-width: 400px;
  }
  .card-header {
    background-color: #007bff;
    color: white;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
  }
  .card-body {
    padding: 30px;
  }
  .form-group {
    margin-bottom: 20px;
  }
  label {
    font-weight: bold;
    display: block;
    margin-bottom: 5px;
  }
  input[type=text], input[type=password] {
    border-radius: 4px;
    border: 1px solid #ccc;
    padding: 10px;
    font-size: 16px;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 10px;
  }
  button[type=submit] {
    background-color: #007bff;
    color: white;
    font-size: 16px;
    font-weight: bold;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
  }
  button[type=submit]:hover {
    background-color: #0062cc;
  }
  .alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
  }