* {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
            color: white;
            min-height: 100vh;
            padding: 20px;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        header {
            text-align: center;
            padding: 20px 0;
            margin-bottom: 30px;
        }
        
        h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        
        .subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
        }
        
        .content {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .controls {
            flex: 1;
            min-width: 300px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
        }
        
        .graph-container {
            flex: 2;
            min-width: 500px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            padding: 20px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
            position: relative;
        }
        
        .control-group {
            margin-bottom: 25px;
        }
        
        h2 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: #ffd700;
        }
        
        h3 {
            font-size: 1.3rem;
            margin: 15px 0 10px;
            color: #ffd700;
        }
        
        .slider-container {
            margin: 15px 0;
        }
        
        label {
            display: block;
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
        
        .slider-value {
            display: inline-block;
            width: 60px;
            text-align: right;
            font-weight: bold;
        }
        
        input[type="range"] {
            width: 100%;
            height: 10px;
            background: linear-gradient(to right, #4a00e0, #8e2de2);
            border-radius: 5px;
            outline: none;
            -webkit-appearance: none;
        }
        
        input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 22px;
            height: 22px;
            background: #ffd700;
            border-radius: 50%;
            cursor: pointer;
            box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
        }
        
        .function-display {
            background: rgba(0, 0, 0, 0.2);
            padding: 15px;
            border-radius: 10px;
            margin-top: 20px;
            font-size: 1.4rem;
            text-align: center;
            font-family: 'Courier New', monospace;
        }
        
        canvas {
            width: 100%;
            height: 450px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 10px;
        }
        
        .footer {
            text-align: center;
            padding: 20px;
            font-size: 1.1rem;
            background: rgba(0, 0, 0, 0.2);
            border-radius: 10px;
            margin-top: 20px;
        }
        
        @media (max-width: 900px) {
            .content {
                flex-direction: column;
            }
            
            .controls, .graph-container {
                min-width: 100%;
            }
        }