:root {
            --primary-color: #007bff;
            --primary-hover: #0056b3;
            --error-color: #dc3545;
            --text-color: #333;
            --light-gray: #f8f9fa;
            --border-color: #ddd;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--light-gray);
            margin: 0;
            padding: 0;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .login-container {
            max-width: 400px;
            width: 90%;
            padding: 30px;
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            text-align: center;
        }

        .login-container h2 {
            margin-bottom: 25px;
            color: var(--primary-color);
            font-size: 28px;
        }

        .login-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .form-group {
            text-align: left;
            margin-bottom: 15px;
        }

        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
            color: var(--text-color);
        }

        .login-form input {
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 16px;
            width: 100%;
            box-sizing: border-box;
            transition: border-color 0.3s;
        }

        .login-form input:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
        }

        .remember-me {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }

        .remember-me input {
            width: auto;
            margin-right: 10px;
        }

        .login-form button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 4px;
            font-size: 16px;
            cursor: pointer;
            transition: background-color 0.3s;
            margin-top: 10px;
        }

        .login-form button:hover {
            background-color: var(--primary-hover);
        }

        .message {
            margin: 20px 0;
            color: var(--error-color);
            font-size: 14px;
            padding: 10px;
            background-color: rgba(220, 53, 69, 0.1);
            border-radius: 4px;
        }

        .register-link {
            margin-top: 20px;
            font-size: 14px;
        }

        .register-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
        }

        .register-link a:hover {
            text-decoration: underline;
        }

        @media (max-width: 412px) {
            .login-container {
                width: 95%;
                padding: 20px;
            }

            .login-container h2 {
                font-size: 24px;
            }
        }