.controls h3 {
            margin: 0 0 10px 0;
            font-size: 16px;
            font-weight: bold;
            color: #333;
        }

        .controls #randomise-weights-btn {
            width: 100%;
            margin-bottom: 15px;
        }

        .network-container {
            background: white;
            border: 2px solid #ddd;
            border-radius: 0;
            padding: 2px;
            min-height: 550px;
            position: relative;
            overflow: visible;
        }

        .network-layer-box {
            position: absolute;
            z-index: 0;
            pointer-events: none;
            left: 0 !important;
            right: 0 !important;
            width: 100% !important;
        }

        .network-node {
            position: absolute;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            border: 2px dotted #333;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 10px;
            cursor: pointer;
            transition: all 0.2s ease;
            background:
                linear-gradient(0deg, #e0e0e0 1px, transparent 1px),
                linear-gradient(90deg, #e0e0e0 1px, transparent 1px),
                white;
            background-size: 10px 10px;
            background-position: center center;
            font-family: monospace;
            z-index: 10;
            padding: 2px;
            overflow: hidden;
        }

        .network-node:hover {
            transform: scale(1.1);
            border-width: 4px;
        }

        .activation-icon {
            width: 80%;
            height: 28px;
            position: relative;
            background: transparent;
            border-radius: 3px;
            padding: 3px;
            margin: 0 auto;
        }

        .activation-icon svg {
            width: 100%;
            height: 100%;
        }

        .node-sum-label {
            position: absolute;
            font-size: 11px;
            font-weight: bold;
            font-family: monospace;
            color: #666;
            pointer-events: none;
            text-align: center;
            transform: translateX(-50%);
        }

        .node-output-label {
            position: absolute;
            font-size: 11px;
            font-weight: bold;
            font-family: monospace;
            color: #333;
            pointer-events: none;
            text-align: center;
            z-index: 5;
            background: white;
            border: 1px solid #ddd;
            padding: 2px 0;
            border-radius: 3px;
            width: 60px;
        }

        .network-node.input {
            color: #1976d2;
            background: white;
            border-color: #1976d2 !important;
        }

        .network-node.hidden {
            color: #7b1fa2;
            border-color: #7b1fa2 !important;
        }

        .network-node.output {
            color: #388e3c;
            border-color: #ff9800 !important;
        }

        .network-edge {
            position: absolute;
            height: 3px;
            background: #666;
            transform-origin: left center;
            pointer-events: auto;
            opacity: 1;
            transition: opacity 0.2s ease, background-color 0.2s ease, height 0.2s ease;
            z-index: 1;
            cursor: pointer;
        }

        .network-edge:hover {
            height: 5px;
            z-index: 3;
        }

        .network-edge.active {
            opacity: 1;
            background: #ff4444;
            height: 4px;
            z-index: 2;
        }

        .edge-tooltip {
            position: absolute;
            background: white;
            border: 2px solid #333;
            border-radius: 4px;
            padding: 8px 12px;
            font-size: 12px;
            font-family: monospace;
            z-index: 1000;
            display: none;
            pointer-events: none;
            box-shadow: 0 2px 8px rgba(0,0,0,0.2);
        }

        .edge-tooltip div {
            margin: 2px 0;
        }

        .node-tooltip {
            position: absolute;
            background: white;
            border: 2px solid #333;
            border-radius: 4px;
            padding: 10px 14px;
            font-size: 12px;
            font-family: monospace;
            z-index: 1000;
            display: none;
            pointer-events: none;
            box-shadow: 0 2px 8px rgba(0,0,0,0.2);
            max-width: 300px;
        }

        .node-tooltip div {
            line-height: 1.4;
        }

        .pre-activation-label {
            position: absolute;
            font-size: 10px;
            font-weight: bold;
            font-family: monospace;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid #ccc;
            border-radius: 0;
            padding: 2px 4px;
            color: #666;
            pointer-events: none;
            z-index: 10;
            transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }

        .neuron-value-label {
            position: absolute !important;
            font-size: 20px !important;
            font-weight: bold !important;
            font-family: monospace !important;
            background: white !important;
            border: 1px solid white !important;
            border-radius: 0;
            padding: 1px 3px !important;
            pointer-events: none;
            z-index: 10 !important;
            text-align: center;
            display: block !important;
            visibility: visible !important;
            opacity: 1 !important;
        }

        .network-layer-label {
            position: absolute;
            font-weight: bold;
            color: #666;
            font-size: 14px;
            text-align: center;
            white-space: nowrap;
            width: 100%;
            left: 0 !important;
            transform: none !important;
        }

        .network-layer-label-vertical {
            position: absolute;
            font-weight: bold;
            color: #666;
            font-size: 13px;
            text-align: center;
            white-space: nowrap;
            transform: rotate(-90deg);
            transform-origin: center center;
            pointer-events: none;
        }

        .input-panel {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 15px;
            background: #f8f9fa;
            border: 2px solid #ddd;
            border-radius: 0;
            margin-bottom: 20px;
        }

        .input-panel > div {
            flex: 1;
        }

        .input-panel button {
            flex-shrink: 0;
            white-space: nowrap;
        }

        .layer-controls {
            background: #f8f9fa;
            border-radius: 0;
            margin-bottom: 10px;
        }

        .layer-buttons {
            display: flex;
            gap: 10px;
            margin-top: 10px;
        }

        .layer-buttons button {
            flex: 1;
        }

        .weight-legend {
            margin-top: 20px;
            padding: 10px;
            background: white;
            border: 1px solid #ddd;
            border-radius: 0;
        }

        .legend-title {
            font-size: 12px;
            font-weight: bold;
            color: #666;
            margin-bottom: 8px;
            text-align: center;
        }

        .legend-gradient {
            height: 20px;
            background: linear-gradient(to right, #f44336 0%, #ffcdd2 50%, #c8e6c9 50%, #4caf50 100%);
            border: 1px solid #ddd;
            border-radius: 0;
            margin-bottom: 5px;
        }

        .legend-labels {
            display: flex;
            justify-content: space-between;
            font-size: 10px;
            color: #666;
        }

        .layer-control-group {
            margin-bottom: 10px;
            padding: 10px;
            background: white;
            border-radius: 0;
            border: 1px solid #ddd;
            transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
        }

        .layer-control-group:hover {
            background: #eef5ff;
            border-color: #90caf9;
            transform: translateY(-1px);
        }

        .layer-control-group:last-child {
            margin-bottom: 0;
        }

        .layer-label {
            font-weight: bold;
            margin-bottom: 8px;
            color: #333;
        }

        .layer-controls-row {
            display: flex;
            gap: 15px;
            align-items: center;
        }

        .layer-control-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .layer-control-item label {
            font-size: 13px;
            color: #666;
            white-space: nowrap;
        }

        .layer-control-item input[type="number"] {
            width: 60px;
            padding: 4px 8px;
            border: 1px solid #ddd;
            border-radius: 0;
            font-size: 13px;
        }

        .layer-control-item select {
            padding: 4px 8px;
            border: 1px solid #ddd;
            border-radius: 0;
            font-size: 13px;
            background: white;
        }


        .weight-input {
            width: 80px;
            padding: 4px;
            border: 1px solid #ddd;
            border-radius: 0;
            font-size: 12px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .weight-input:focus {
            border-color: #1976d2;
            box-shadow: 0 0 0 2px rgba(25, 118, 210, 0.15);
            outline: none;
        }

        .modal {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 1000;
        }

        .modal-content {
            background: white;
            padding: 20px;
            border-radius: 0;
            max-width: 400px;
            width: 90%;
        }

        .modal-content h3 {
            margin-top: 0;
        }

        @media (prefers-reduced-motion: reduce) {
            .network-node,
            .network-edge,
            .pre-activation-label,
            .layer-control-group,
            .weight-input {
                transition: none;
                transform: none;
            }
        }