.login-container {
            max-width: 400px;
            margin: 100px auto;
            padding: 20px;
            background-color: #f9f9f9;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        }
        .login-container h1 {
            text-align: center;
            color: var(--color-text-main);
            margin-bottom: 20px;
        }
        .form-group {
            margin-bottom: 15px;
        }
        .form-group label {
            display: block;
            margin-bottom: 5px;
            color: var(--color-text-muted);
        }
        .form-group input {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            box-sizing: border-box;
        }
        .form-group input:focus {
            outline: none;
            border-color: var(--color-primary);
        }
        .error {
            color: red;
            margin-bottom: 15px;
            text-align: center;
        }
        button {
            width: 100%;
            padding: 10px;
            background-color: var(--color-primary);
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 16px;
        }
        button:hover {
            background-color: var(--color-primary-dark);
        }