.brain-test-container {
        font-family: "Vazirmatn", sans-serif;
        max-width: 800px;
        margin: 0 auto;
        padding: 20px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border-radius: 20px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    }
    
    .test-intro {
        text-align: center;
        padding: 40px 30px;
        background: white;
        border-radius: 15px;
        margin-bottom: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    }
    
    .intro-icon {
        font-size: 60px;
        color: #667eea;
        margin-bottom: 20px;
    }
    
    .test-intro h2 {
        color: #2d3748;
        margin-bottom: 15px;
        font-size: 28px;
    }
    
    .test-intro p {
        color: #4a5568;
        line-height: 1.7;
        margin-bottom: 25px;
        font-size: 16px;
    }
    
    .intro-features {
        display: flex;
        justify-content: center;
        gap: 30px;
        margin: 30px 0;
        flex-wrap: wrap;
    }
    
    .feature {
        display: flex;
        align-items: center;
        gap: 10px;
        color: #667eea;
        font-weight: 500;
    }
    
    .feature i {
        font-size: 20px;
    }
    
    .start-btn, .nav-btn, .submit-btn, .restart-btn {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        border: none;
        padding: 15px 35px;
        border-radius: 50px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        transition: all 0.3s ease;
        box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
        display: inline-flex;
        align-items: center;
        gap: 10px;
    }
    
    .start-btn:hover, .nav-btn:hover, .submit-btn:hover, .restart-btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 10px 25px rgba(102, 126, 234, 0.5);
    }
    
    .brain-test-form {
        background: white;
        padding: 30px;
        border-radius: 15px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    }
    
    .question-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 25px;
        padding-bottom: 15px;
        border-bottom: 2px solid #f7fafc;
    }
    
    .question-number {
        font-weight: 600;
        color: #4a5568;
    }
    
    .progress-bar {
        width: 200px;
        height: 8px;
        background: #edf2f7;
        border-radius: 10px;
        overflow: hidden;
    }
    
    .progress-fill {
        height: 100%;
        background: linear-gradient(90deg, #667eea, #764ba2);
        border-radius: 10px;
        transition: width 0.5s ease;
    }
    
    .question p {
        font-weight: 600;
        color: #2d3748;
        margin-bottom: 20px;
        font-size: 18px;
        line-height: 1.6;
    }
    
    .question label {
        display: flex;
        padding: 18px 20px;
        margin-bottom: 12px;
        background: #f8fafc;
        border-radius: 12px;
        cursor: pointer;
        transition: all 0.3s ease;
        border: 2px solid transparent;
        align-items: center;
    }
    
    .question label:hover {
        background: #edf2f7;
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    }
    
    .question input[type="radio"] {
        margin-left: 15px;
        transform: scale(1.2);
    }
    
    .option-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }
    
    .option-text {
        flex: 1;
        color: #4a5568;
        font-weight: 500;
    }
    
    .navigation-buttons {
        display: flex;
        justify-content: space-between;
        margin-top: 35px;
    }
    
    .brain-test-results {
        background: white;
        padding: 40px 30px;
        border-radius: 15px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    }
    
    .results-header {
        text-align: center;
        margin-bottom: 40px;
    }
    
    .result-icon {
        font-size: 60px;
        color: #667eea;
        margin-bottom: 20px;
    }
    
    .results-header h2 {
        color: #2d3748;
        margin-bottom: 10px;
    }
    
    .results-header p {
        color: #718096;
    }
    
    .result-cards {
        display: flex;
        gap: 30px;
        margin-bottom: 40px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .result-card {
        flex: 1;
        min-width: 250px;
        background: white;
        border-radius: 15px;
        padding: 25px;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
        border: 1px solid #e2e8f0;
    }
    
    .left-brain-card {
        border-top: 5px solid #4e73df;
    }
    
    .right-brain-card {
        border-top: 5px solid #1cc88a;
    }
    
    .card-header {
        display: flex;
        align-items: center;
        gap: 15px;
        margin-bottom: 20px;
    }
    
    .card-header i {
        font-size: 30px;
        color: #4a5568;
    }
    
    .card-header h3 {
        color: #2d3748;
        font-size: 18px;
        margin: 0;
    }
    
    .card-content {
        text-align: center;
    }
    
    .percentage {
        font-size: 42px;
        font-weight: 700;
        margin-bottom: 20px;
    }
    
    .left-brain-card .percentage {
        color: #4e73df;
    }
    
    .right-brain-card .percentage {
        color: #1cc88a;
    }
    
    .progress-circle {
        display: inline-block;
        position: relative;
    }
    
    .progress-circle svg {
        transform: rotate(-90deg);
    }
    
    .brain-type {
        background: #f7fafc;
        border-radius: 15px;
        padding: 25px;
        margin-bottom: 30px;
        border-left: 5px solid #667eea;
    }
    
    .type-header h3 {
        color: #2d3748;
        margin-bottom: 15px;
    }
    
    .type-description p {
        color: #4a5568;
        line-height: 1.7;
        margin: 0;
    }
    
    .brain-traits {
        margin-bottom: 30px;
    }
    
    .brain-traits h3 {
        color: #2d3748;
        margin-bottom: 20px;
        text-align: center;
    }
    
    .traits-container {
        display: flex;
        gap: 30px;
        flex-wrap: wrap;
    }
    
    .trait-list {
        flex: 1;
        min-width: 250px;
    }
    
    .trait-list ul {
        list-style: none;
        padding: 0;
    }
    
    .trait-list li {
        padding: 12px 15px;
        margin-bottom: 10px;
        background: white;
        border-radius: 8px;
        border-left: 4px solid;
        box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    }
    
    #left-brain-traits li {
        border-left-color: #4e73df;
    }
    
    #right-brain-traits li {
        border-left-color: #1cc88a;
    }
    
    .brain-balance {
        background: #f8f9fa;
        border-radius: 15px;
        padding: 25px;
        margin-bottom: 30px;
    }
    
    .brain-balance h3 {
        color: #2d3748;
        margin-bottom: 20px;
        text-align: center;
    }
    
    .balance-meter {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .balance-labels {
        display: flex;
        justify-content: space-between;
        margin-bottom: 10px;
        color: #4a5568;
        font-weight: 500;
    }
    
    .balance-bar {
        height: 20px;
        background: linear-gradient(90deg, #4e73df, #1cc88a);
        border-radius: 10px;
        position: relative;
        overflow: hidden;
    }
    
    .balance-indicator {
        position: absolute;
        top: 0;
        bottom: 0;
        width: 4px;
        background: #2d3748;
        transform: translateX(-50%);
        transition: left 1s ease;
    }
    
    .results-disclaimer {
        background: #fff3cd;
        border: 1px solid #ffeaa7;
        border-radius: 10px;
        padding: 15px 20px;
        margin-bottom: 25px;
    }
    
    .results-disclaimer p {
        color: #856404;
        margin: 0;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    
    @media (max-width: 768px) {
        .brain-test-container {
            padding: 15px;
        }
        
        .test-intro, .brain-test-form, .brain-test-results {
            padding: 25px 20px;
        }
        
        .intro-features {
            flex-direction: column;
            gap: 15px;
        }
        
        .question-header {
            flex-direction: column;
            gap: 15px;
            align-items: flex-start;
        }
        
        .progress-bar {
            width: 100%;
        }
        
        .navigation-buttons {
            flex-direction: column;
            gap: 15px;
        }
        
        .nav-btn, .submit-btn {
            width: 100%;
            justify-content: center;
        }
        
        .result-cards {
            flex-direction: column;
        }
        
        .option-content {
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
        }
    }