body {
            margin: 0;
            padding: 0;
            font-family: sans-serif;
            position: relative;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url("/images/student_login_bg.png");
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.6;
            z-index: -1;
        }
        .login-container {
            background-color: rgba(255, 255, 255, 0.8);
            padding: 40px;
            border-radius: 10px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            text-align: center;
        }

        .login-container h2 {
            margin-bottom: 20px;
        }

        .login-container label {
            display: block;
            text-align: left;
            margin: 10px 0 5px;
        }

        .login-container input {
            width: 100%;
            padding: 10px;
            margin-bottom: 20px;
            border: 1px solid #ccc;
            border-radius: 5px;
        }

        .login-container button {
            width: 100%;
            padding: 10px;
            background-color: #007bff;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
        }

        .login-container button:hover {
            background-color: #0056b3;
        }
        .error-message {
            color: red;
            margin-top: 10px;
            font-size: 14px;
            margin-bottom: 10px;
            background-color: #f8d7da;
            padding: 10px;
            border: 1px solid #f5c6cb;
            border-radius: 5px;
        }