.grade_tutroial_custome_css .active {
            background: #e8dcf5 !important;
            font-size: 1.1rem;
        }
        .grade_tutroial_custome_css .list-group-item {
            border: none !important;
          
        }
        .grade_tutroial_custome_css .status-icon {
            font-size: 1.4rem;
            margin-left: auto;
            color: #6c757d;
            transition: color 0.3s ease;
        }
        .grade_tutroial_custome_css .status-icon.completed {
            color: #28a745;
        }
        .grade_tutroial_custome_css .status-icon:hover {
            color: #007bff;
        }
        .grade_tutroial_custome_css .video-list-wrapper {
            max-height: 650px;
            overflow-y: auto;
            border: 1px solid #ddd;
            padding: 15px;
            border-radius: 8px;
        }
        .grade_tutroial_custome_css .question-wrapper {
            display: none;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 8px;
        }
        .grade_tutroial_custome_css .question h4 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            font-weight: 600;
        }
        
        .grade_tutroial_custome_css .btn-purpel {
            background-color: #6f42c1;
            color: white;
            font-size: 1.1rem;
            padding: 10px 20px;
        }
        .grade_tutroial_custome_css .btn-purpel:hover {
            background-color: #5a32a3;
        }
        .grade_tutroial_custome_css .btn-purpel.disabled {
            background-color: #adb5bd;
            cursor: not-allowed;
        }
        .grade_tutroial_custome_css video {
            border-radius: 8px;
            margin-top: 20px;
        }
        .grade_tutroial_custome_css h2.text-center {
            font-size: 20px;
            font-weight: 700;
            color: #ff800b;
            margin: 0;
        }
        .grade_tutroial_custome_css h3#sidebarTitle {
            font-size: 1.6rem;
            margin-bottom: 15px;
        }
        .grade_tutroial_custome_css .completion-checkbox {
            margin-left: 10px;
            margin-right: 10px;
            transform: scale(1.2);
        }

        .grade_tutroial_custome_css .question-modal { 
            display: none; 
            position: fixed; 
            top: 0; 
            left: 0; 
            width: 100%; 
            height: 100%; 
            background: rgba(0,0,0,0.7); 
            z-index: 1000; 
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(3px);
        }
        .grade_tutroial_custome_css .question-modal-content { 
            background: white; 
            margin: 2% auto; 
            padding: 30px; 
            width: 90%; 
            max-width: 773px; 
            border-radius: 12px; 
            box-shadow: 0 8px 32px rgba(0,0,0,0.2);
            transform: translateY(-20px);
            transition: transform 0.3s ease;
        }
        .grade_tutroial_custome_css .question-modal-content h4 { 
            margin-bottom: 25px; 
            font-size: 1.8rem;
            color: #333;
            font-weight: 600;
            text-align: center;
        }
        .grade_tutroial_custome_css .option-btn { 
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%; 
            margin: 8px 0; 
            padding: 12px; 
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            background: #f8f9fa;
            font-size: 1.1rem;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
            color: black !important;
        }
        .grade_tutroial_custome_css .option-btn:hover {
            background: #e9ecef;
            border-color: #6f42c1;
            transform: translateY(-2px);
        }
        .grade_tutroial_custome_css .option-btn img { 
            max-width: 100%; 
            max-height: 120px; 
            object-fit: contain; 
            border-radius: 6px;
        }
        .grade_tutroial_custome_css .correct { 
            background-color: #28a745 !important; 
            color: white !important; 
            border-color: #28a745 !important;
            transform: scale(1.02);
        }
        .grade_tutroial_custome_css .incorrect { 
            background-color: #dc3545 !important; 
            color: white !important; 
            border-color: #dc3545 !important;
            transform: scale(1.02);
        }
        .grade_tutroial_custome_css .feedback-message { 
            margin-top: 20px; 
            padding: 10px;
            border-radius: 6px;
            font-weight: 500;
            text-align: center;
            font-size: 1.1rem;
            transition: opacity 0.3s ease;
        }
        .grade_tutroial_custome_css .feedback-message.correct {
            background: #d4edda;
            color: #155724;
        }
        .grade_tutroial_custome_css .feedback-message.incorrect {
            background: #f8d7da;
            color: #721c24;
        }
        .text-size{
            font-size: 14px;
        }