.quiz-container {
            max-width: 800px;
            width: 100%;
            margin: 0 auto;
        }

        .quiz-card {
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            overflow: hidden;
            padding: 30px;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateX(20px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .progress-bar {
            background: #e0e0e0;
            height: 8px;
            border-radius: 10px;
            margin-bottom: 30px;
            overflow: hidden;
        }

        .progress-fill {
            background: linear-gradient(90deg, #667eea, #764ba2);
            height: 100%;
            border-radius: 10px;
            transition: width 0.3s ease;
            width: 0%;
        }

        .question-header {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            margin-bottom: 25px;
            flex-wrap: wrap;
            gap: 10px;
        }

        .question-number {
            color: #667eea;
            font-weight: bold;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .question-counter {
            color: #999;
            font-size: 14px;
        }

        .question-text {
            font-size: 1.5rem;
            font-weight: 600;
            color: #333;
            margin-bottom: 30px;
            line-height: 1.4;
        }

        .answers-area {
            margin-bottom: 30px;
        }

        .answer-option {
            margin-bottom: 15px;
            padding: 12px 15px;
            background: #f8f9fa;
            border-radius: 12px;
            transition: all 0.2s;
            cursor: pointer;
        }

        .answer-option:hover {
            background: #e9ecef;
            transform: translateX(5px);
        }

        .answer-option label {
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1rem;
            color: #333;
        }

        input[type="text"],
        textarea,
        select {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e0e0e0;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.2s;
            resize: vertical;
        }

        input[type="text"]:focus,
        textarea:focus,
        select:focus {
            outline: none;
            border-color: #667eea;
        }

        textarea {
            min-height: 100px;
        }

        input[type="radio"],
        input[type="checkbox"] {
            width: 20px;
            height: 20px;
            cursor: pointer;
        }

        .navigation-buttons {
            display: flex;
            justify-content: space-between;
            gap: 15px;
            margin-top: 20px;
        }

        button {
            padding: 12px 30px;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: all 0.3s;
            font-family: inherit;
        }

        .btn-prev {
            background: #f0f0f0;
            color: #666;
        }

        .btn-prev:hover:not(:disabled) {
            background: #e0e0e0;
            transform: translateX(-3px);
        }

        .btn-next {
            background: linear-gradient(90deg, #667eea, #764ba2);
            color: white;
        }

        .btn-next:hover:not(:disabled) {
            transform: translateX(3px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }

        button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none;
        }

        .btn-start, .btn-send {
            background: linear-gradient(90deg, #11998e, #38ef7d);
            color: white;
            font-size: 1.2rem;
            padding: 15px 40px;
        }

        .btn-start:hover, .btn-send:hover {
            transform: scale(1.05);
            box-shadow: 0 5px 20px rgba(17, 153, 142, 0.4);
        }

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

        .welcome-text h1 {
            color: #333;
            margin-bottom: 20px;
            font-size: 2rem;
        }

        .welcome-text p {
            color: #666;
            line-height: 1.6;
            margin-bottom: 15px;
        }

        .hidden {
            display: none;
        }

        .results {
            background: white;
            border-radius: 20px;
            padding: 30px;
            text-align: center;
        }

        .results h2 {
            color: #333;
            margin-bottom: 20px;
        }

        .results-list {
            text-align: left;
            margin-top: 20px;
            max-height: 400px;
            overflow-y: auto;
        }

        .result-item {
            padding: 15px;
            border-bottom: 1px solid #e0e0e0;
        }

        .result-question {
            font-weight: 600;
            color: #333;
            margin-bottom: 5px;
        }

        .result-answer {
            color: #666;
            font-size: 0.9rem;
        }

        .btn-restart {
            margin-top: 20px;
            background: #667eea;
            color: white;
        }

        .loading {
            text-align: center;
            padding: 20px;
            color: #666;
        }

        @media (max-width: 600px) {
            .quiz-card {
                padding: 20px;
            }
            .question-text {
                font-size: 1.2rem;
            }
            button {
                padding: 10px 20px;
            }
        }

        @media (max-width: 480px) {

            .navigation-buttons {
                flex-direction: column;
            }
            button {
                width: 100%;
            }
        }