* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Courier New', monospace;
            background-color: #f0f0f0;
            min-height: 100vh;
            padding: 20px;
        }
        
        /* Header styles */
        header {
            background-color: #333;
            margin-bottom: 20px;
            width: 100%;
        }
        
        .container1 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 15px 20px;
        }
        
        .container1 a {
            text-decoration: none;
            color: #fff;
            display: block;
            text-align: center;
        }
        
        .container1 h2,
        .container1 h3 {
            margin: 0;
            padding: 10px;
            transition: background-color 0.3s;
        }
        
        .container1 h2 {
            font-size: 20px;
            border: 2px solid #fff;
            border-radius: 4px;
        }
        
        .bolttext {
            font-size: 16px;
            font-weight: bold;
        }
        
        .container1 a:hover h2,
        .container1 a:hover .bolttext {
            background-color: #555;
        }
        
        /* Main grid layout */
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .controller {
            background-color: #e8e8e8;
            border: 3px solid #333;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
            margin: 0;
            max-width: 100%;
        }
        
        .action {
            background-color: #e8e8e8;
            border: 3px solid #333;
            border-radius: 8px;
            padding: 20px;
            min-height: 400px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        }
        
        /* Header */
        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #333;
        }
        
        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #333;
            border: 2px solid #333;
            padding: 5px 15px;
            background-color: #fff;
        }
        
        .model {
            font-size: 20px;
            font-weight: bold;
            color: #333;
        }
        
        /* Displays */
        .displays {
            margin-bottom: 20px;
        }
        
        .display-main {
            width: 100%;
            height: 120px;
            border: 3px solid #333;
            background-color: #fff;
            margin-bottom: 15px;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 48px;
            font-weight: bold;
            color: #333;
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
        }
        
        .display-secondary {
            width: 100%;
            height: 60px;
            border: 2px solid #333;
            background-color: #fff;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: #333;
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
        }
        
        /* Indicators */
        .indicators {
            margin-bottom: 20px;
        }
        
        .indicator-row {
            display: flex;
            gap: 15px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        
        .indicator-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .indicator-circle {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            border: 2px solid #333;
            background-color: #000;
            transition: background-color 0.3s;
        }
        
        .indicator-circle.active {
            background-color: #ff0000;
        }
        
        .indicator-item span {
            font-size: 14px;
            font-weight: bold;
            color: #333;
        }
        
        /* Buttons */
        .buttons {
            display: flex;
            gap: 10px;
            justify-content: center;
        }
        
        .btn {
            width: 80px;
            height: 60px;
            border: 3px solid #333;
            background-color: #e0e0e0;
            border-radius: 6px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: bold;
            transition: all 0.2s;
            box-shadow: 0 3px 6px rgba(0, 0, 0, 0.3);
        }
        
        .btn:hover {
            background-color: #d0d0d0;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
        }
        
        .btn:active {
            transform: translateY(1px);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
            background-color: #c0c0c0;
        }
        
        .btn-icon {
            font-size: 32px;
            color: #333;
        }
        
        .btn-text {
            font-size: 12px;
            line-height: 1.2;
            text-align: center;
            color: #333;
        }
        
        /* Responsive */
        @media (max-width: 900px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
            
            .container1 {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            
            .container1 h2 {
                font-size: 18px;
            }
            
            .bolttext {
                font-size: 14px;
            }
        }
        
        @media (max-width: 600px) {
            .container1 {
                grid-template-columns: 1fr;
            }
            
            .container1 h2 {
                font-size: 16px;
            }
            
            .bolttext {
                font-size: 13px;
            }
            
            .btn {
                width: 60px;
                height: 50px;
            }
            
            .btn-icon {
                font-size: 24px;
            }
            
            .display-main {
                height: 80px;
                font-size: 36px;
            }
            
            .display-secondary {
                height: 50px;
                font-size: 20px;
            }
        }