:root {
            --primary-color: #2c7da0;
            --secondary-color: #a9d6e5;
            --light-bg: #f8f9fa;
            --dark-text: #212529;
            --border-color: #dee2e6;
            --success-color: #198754;
            --warning-color: #ffc107;
            --error-color: #dc3545;
        }
   
        .grade-input-group {
            margin-bottom: 1.5rem;
        }
        
        .grade-input {
            max-width: 100%;
            text-align: left;
        }
        
        .grade-slider {
            width: 100%;
            margin-top: 0.5rem;
        }
        
        .grade-visual {
            height: 20px;
            background: linear-gradient(to right, #dc3545 0%, #ffc107 50%, #198754 100%);
            border-radius: 10px;
            margin: 1rem 0;
            position: relative;
        }
        
        .grade-marker {
            position: absolute;
            top: -5px;
            width: 3px;
            height: 30px;
            background-color: #000;
        }
        
        .grade-label {
            position: absolute;
            top: 25px;
            font-size: 0.8rem;
            transform: translateX(-50%);
            white-space: nowrap;
        }
         
        .grade-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        
        .grade-table th, .grade-table td {
            border: 1px solid var(--border-color);
            padding: 0.75rem;
            text-align: center;
        }
        
        .grade-table th {
            background-color: rgba(44, 125, 160, 0.1);
        }
        
        .grade-table tr:nth-child(even) {
            background-color: rgba(0, 0, 0, 0.02);
        }
        
        .grade-table tr:hover {
            background-color: rgba(44, 125, 160, 0.05);
        }
        
        .score-card {
            background: linear-gradient(135deg, rgba(169, 214, 229, 0.2) 0%, rgba(44, 125, 160, 0.2) 100%);
            border-radius: 10px;
            padding: 1.5rem;
            text-align: center;
            margin: 1.5rem 0;
        }
        
        .score-value {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--primary-color);
            margin: 0.5rem 0;
        }
        
        .score-label {
            font-size: 1.2rem;
            color: var(--dark-text);
            margin-bottom: 0.5rem;
        }
        
        .score-grade {
            font-size: 2.5rem;
            font-weight: bold;
            color: var(--success-color);
            margin: 0.5rem 0;
        }
        
        .progress-container {
            margin: 1.5rem 0;
        }
        
        .progress-bar {
            height: 25px;
            border-radius: 12px;
            background-color: #e9ecef;
            overflow: hidden;
        }
        
        .progress-fill {
            height: 100%;
            background: linear-gradient(to right, var(--primary-color), #236685);
            border-radius: 12px;
            transition: width 0.5s ease;
        }
        
        .progress-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        
        .target-form {
            background-color: rgba(44, 125, 160, 0.05);
            border-radius: 8px;
            padding: 1.5rem;
            margin: 1.5rem 0;
        }