.quiz-buehne{
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #759B58 0%, #5a7a42 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .container {
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            max-width: 700px;
            width: 100%;
            padding: 40px;
        }

        .header {
            text-align: center;
            margin-bottom: 30px;
        }

        .subtitle {
            color: #333;
            font-size: 28px;
            font-weight: 600;
        }

        .progress-bar {
            width: 100%;
            height: 10px;
            background: #e0e0e0;
            border-radius: 5px;
            margin: 20px 0;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #759B58 0%, #5a7a42 100%);
            width: 0%;
            transition: width 0.5s ease;
        }

        .question-container {
            margin-bottom: 30px;
        }

        .question-number {
            color: #759B58;
            font-weight: bold;
            font-size: 14px;
            margin-bottom: 10px;
        }

        .question-text {
            font-size: 22px;
            font-weight: 600;
            color: #333;
            margin-bottom: 25px;
            line-height: 1.4;
        }

        .options {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .option {
            background: #f8f9fa;
            border: 2px solid #e0e0e0;
            border-radius: 12px;
            padding: 18px 20px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 16px;
            display: flex;
            align-items: center;
        }

        .option:hover {
            border-color: #759B58;
            background: #f0f7ec;
            transform: translateX(5px);
        }

        .option.selected {
            border-color: #759B58;
            background: #e8f3e0;
        }

        .option.correct {
            border-color: #4caf50;
            background: #e8f5e9;
        }

        .option.wrong {
            border-color: #f44336;
            background: #ffebee;
        }

        .option.disabled {
            cursor: not-allowed;
            opacity: 0.6;
        }

        .option-letter {
            display: inline-flex;
            justify-content: center;
            align-items: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: #759B58;
            color: white;
            font-weight: bold;
            margin-right: 15px;
            flex-shrink: 0;
        }

        .next-button {
            background: linear-gradient(135deg, #759B58 0%, #5a7a42 100%);
            color: white;
            border: none;
            padding: 15px 40px;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            width: 100%;
            margin-top: 20px;
            transition: all 0.3s ease;
        }

        .next-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(117, 155, 88, 0.3);
        }

        .next-button:disabled {
            background: #ccc;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        
        .next-button.show-answer {
            background: linear-gradient(135deg, #4caf50 0%, #388e3c 100%);
        }
        
        .next-button.show-answer:hover {
            box-shadow: 0 10px 20px rgba(76, 175, 80, 0.3);
        }

        .result-container {
            text-align: center;
            display: none;
        }

        .result-score {
            font-size: 72px;
            font-weight: bold;
            background: linear-gradient(135deg, #759B58 0%, #5a7a42 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin: 20px 0;
        }

        .result-message {
            font-size: 24px;
            color: #333;
            margin-bottom: 30px;
            font-weight: 600;
        }

        .result-details {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 20px;
            margin: 20px 0;
            text-align: left;
        }

        .result-detail-item {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid #e0e0e0;
        }

        .result-detail-item:last-child {
            border-bottom: none;
        }

        .restart-button {
            background: linear-gradient(135deg, #759B58 0%, #5a7a42 100%);
            color: white;
            border: none;
            padding: 15px 40px;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .restart-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(117, 155, 88, 0.3);
        }

        .hidden {
            display: none;
        }

        .feedback {
            margin-top: 15px;
            padding: 15px;
            border-radius: 10px;
            font-weight: 500;
            text-align: center;
            display: none;
        }

        .feedback.correct {
            background: #e8f5e9;
            color: #2e7d32;
            display: block;
        }

        .feedback.wrong {
            background: #ffebee;
            color: #c62828;
            display: block;
        }

        @media (max-width: 600px) {
            .container {
                padding: 25px;
            }

            .question-text {
                font-size: 18px;
            }

            .option {
                padding: 15px;
                font-size: 14px;
            }
        }