:root {
            --primary-color: #3a7ca5;
            --secondary-color: #81c3d7;
            --accent-color: #16425b;
            --success-color: #2a9d8f;
            --warning-color: #e9c46a;
            --danger-color: #e76f51;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
        }
       .page-header {
            background: linear-gradient(135deg, rgba(129, 195, 215, 0.4) 0%, rgba(58, 124, 165, 0.4) 100%);
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(58, 124, 165, 0.2);
            position: relative;
            overflow: hidden;   color: var(--text-color);
        }
        .breadcrumb {
            background-color: transparent;
            padding: 0.5rem 0;
            margin-bottom: 0.5rem;
        }
        .breadcrumb-item a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .breadcrumb-item.active {
            color: var(--text-color);
        }
        .btn-success {
            background-color: var(--success-color);
            border-color: var(--success-color);
            font-weight: 600;
            border-radius: 6px;
            padding: 0.75rem 1.5rem;
        }
        .course-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin: 1.5rem 0;
        }
        .course-table th {
            background-color: var(--light-gray);
            padding: 1rem;
            text-align: left;
            font-weight: 600;
            border-bottom: 2px solid var(--border-color);
            color: var(--text-color);
        }
        .course-table td {
            padding: 1rem;
            border-bottom: 1px solid var(--border-color);
            vertical-align: middle;
        }
        .course-table tr:hover {
            background-color: rgba(58, 124, 165, 0.05);
        }
        .course-table input, .course-table select {
            width: 100%;
        }
        .gpa-display {
            text-align: center;
            padding: 2rem;
            background: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            margin-bottom: 1.5rem;
        }
        .gpa-value {
            font-size: 3.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        .gpa-scale {
            color: var(--text-muted);
            font-size: 1.2rem;
        }
        .gpa-breakdown {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            margin: 1.5rem 0;
        }
        .breakdown-item {
            text-align: center;
            padding: 1rem;
            min-width: 150px;
        }
        .breakdown-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .breakdown-label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .grade-distribution {
            display: flex;
            align-items: flex-end;
            height: 200px;
            margin: 2rem 0;
            padding: 1rem;
            background-color: var(--light-gray);
            border-radius: 6px;
        }
        .grade-bar {
            flex: 1;
            margin: 0 0.25rem;
            background-color: var(--primary-color);
            border-radius: 4px 4px 0 0;
            position: relative;
            transition: height 0.5s ease;
        }
        .grade-label {
            position: absolute;
            bottom: -25px;
            left: 0;
            right: 0;
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-color);
        }
        .grading-scale-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        .grading-scale-table th, .grading-scale-table td {
            padding: 0.75rem;
            text-align: left;
            border: 1px solid var(--border-color);
        }
        .grading-scale-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        .grading-scale-table tr:nth-child(even) {
            background-color: rgba(58, 124, 165, 0.05);
        }
        @media (max-width: 768px) {
            .gpa-value {
                font-size: 2.5rem;
            }
            .gpa-breakdown {
                flex-direction: column;
                align-items: center;
            }
            .breakdown-item {
                margin-bottom: 1rem;
            }
        }
        .toggle-container {
            display: flex;
            align-items: center;
            margin-bottom: 1.5rem;
        }
        .toggle-label {
            margin-right: 1rem;
            font-weight: 600;
        }
        .toggle-switch {
            position: relative;
            display: inline-block;
            width: 60px;
            height: 30px;
        }
        .toggle-switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }
        .toggle-slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #ccc;
            transition: .4s;
            border-radius: 30px;
        }
        .toggle-slider:before {
            position: absolute;
            content: "";
            height: 22px;
            width: 22px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            transition: .4s;
            border-radius: 50%;
        }
        input:checked + .toggle-slider {
            background-color: var(--primary-color);
        }
        input:checked + .toggle-slider:before {
            transform: translateX(30px);
        }
        .course-type-badge {
            display: inline-block;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-right: 0.5rem;
        }
        .regular-badge {
            background-color: rgba(58, 124, 165, 0.1);
            color: var(--primary-color);
        }
        .honors-badge {
            background-color: rgba(233, 196, 106, 0.2);
            color: #b38f00;
        }
        .ap-badge {
            background-color: rgba(231, 111, 81, 0.2);
            color: var(--danger-color);
        }
        .ib-badge {
            background-color: rgba(111, 66, 193, 0.2);
            color: #6f42c1;
        }
        .dual-badge {
            background-color: rgba(42, 157, 143, 0.2);
            color: var(--success-color);
        }
        .advanced-badge {
            background-color: rgba(255, 152, 0, 0.2);
            color: #ff9800;
        }
        .college-badge {
            background-color: rgba(156, 39, 176, 0.2);
            color: #9c27b0;
        }
        .custom-weight-badge {
            background-color: rgba(33, 150, 243, 0.2);
            color: #2196f3;
        }
        .remedial-badge {
            background-color: rgba(158, 158, 158, 0.2);
            color: #9e9e9e;
        }
        .preap-badge {
            background-color: rgba(255, 87, 34, 0.2);
            color: #ff5722;
        }
        .accelerated-badge {
            background-color: rgba(103, 58, 183, 0.2);
            color: #673ab7;
        }
        .cte-badge {
            background-color: rgba(76, 175, 80, 0.2);
            color: #4caf50;
        }
        .semester-tabs {
            display: flex;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        .semester-tab {
            padding: 0.75rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            border-bottom: 3px solid transparent;
            transition: all 0.3s;
        }
        .semester-tab:hover {
            color: var(--primary-color);
        }
        .semester-tab.active {
            color: var(--primary-color);
            border-bottom-color: var(--primary-color);
        }
        .add-semester-btn {
            padding: 0.75rem 1rem;
            cursor: pointer;
            color: var(--primary-color);
            font-weight: 600;
        }
        .gpa-comparison {
            display: flex;
            justify-content: space-between;
            margin: 2rem 0;
        }
        .gpa-type {
            text-align: center;
            padding: 1.5rem;
            border-radius: 8px;
            flex: 1;
            margin: 0 0.5rem;
            border: 1px solid var(--border-color);
        }
        .gpa-type-value {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .weighted-gpa {
            border-top: 4px solid var(--danger-color);
        }
        .unweighted-gpa {
            border-top: 4px solid var(--primary-color);
        }
        .progress-container {
            margin: 1.5rem 0;
        }
        .progress-label {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
        }
        .progress-bar {
            height: 10px;
            background-color: #e9ecef;
            border-radius: 5px;
            overflow: hidden;
        }
        .progress-fill {
            height: 100%;
            background-color: var(--primary-color);
            border-radius: 5px;
        }
        .remove-btn {
            color: var(--danger-color);
            background: none;
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            padding: 0.25rem;
            border-radius: 4px;
            transition: all 0.3s;
        }
        .remove-btn:hover {
            background-color: rgba(231, 111, 81, 0.1);
        }
        .custom-weight-input {
            display: none;
            margin-top: 0.5rem;
        }
        .custom-weight-input.active {
            display: block;
        }
        .school-system-selector.compact {
            background-color: var(--light-gray);
            border-radius: 6px;
            padding: 1rem;
            margin-bottom: 1.5rem;
            border: 1px solid var(--border-color);
        }
        .school-system-selector .system-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        .school-system-selector .system-header h5 {
            font-weight: 600;
            margin: 0;
            color: var(--primary-color);
        }
        .current-system-display {
            background-color: white;
            border-radius: 4px;
            padding: 0.5rem;
            border: 1px solid var(--border-color);
            margin-bottom: 0.5rem;
        }
        .system-options-collapsible {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }
        .system-options-collapsible.expanded {
            max-height: 300px;
            overflow-y: auto;
        }
        .system-option {
            display: flex;
            align-items: center;
            padding: 0.75rem;
            border-radius: 4px;
            margin-bottom: 0.5rem;
            cursor: pointer;
            transition: all 0.3s;
            background-color: white;
            border: 1px solid var(--border-color);
        }
        .system-option:hover {
            background-color: rgba(58, 124, 165, 0.1);
        }
        .system-option.selected {
            background-color: rgba(58, 124, 165, 0.15);
            border-left: 3px solid var(--primary-color);
        }
        .system-option .system-radio {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            border: 2px solid #ccc;
            margin-right: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .system-option.selected .system-radio {
            border-color: var(--primary-color);
        }
        .system-option.selected .system-radio::after {
            content: "";
            width: 8px;
            height: 8px;
            background-color: var(--primary-color);
            border-radius: 50%;
        }
        .system-name {
            font-weight: 600;
            margin-bottom: 0.25rem;
        }
        .system-description {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .course-type-explanation {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }
        .social-icons {
            margin-top: 1rem;
        }
        .social-icon {
            display: inline-block;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(58, 124, 165, 0.1);
            color: var(--primary-color);
            text-align: center;
            line-height: 36px;
            margin-right: 0.5rem;
            transition: all 0.3s;
        }
        .social-icon:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }