body {
            background-color: black;
            font-family: Arial, sans-serif;
            color: white;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        .synth-controls {
            width: 100%;
            border: 2px solid white;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 20px;
        }

        .synth-controls h2 {
            margin-top: 0;
        }

        input[type="range"] {
            width: 80%;
            margin-bottom: 10px;
            -webkit-appearance: none;
        }

        input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: white;
            cursor: pointer;
            box-shadow: 0 0 5px 0 rgba(255, 255, 255, 0.7);
        }

        label {
            display: inline-block;
            margin-bottom: 5px;
        }

        button {
            padding: 10px 20px;
            font-size: 16px;
            border-radius: 10px;
            background-color: #3498db;
            color: white;
            border: none;
            cursor: pointer;
        }

        button:hover {
            background-color: #2980b9;
        }

        #globalControlPanel {
            text-align: center;
            border: 2px solid white;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 20px;
        }

        #globalControlPanel button {
            margin: 0 10px;
        }

        #loopPlayerControls {
            display: none;
            /* Hide loop player controls */
        }

        #loopPlayerControls button {
            margin: 0 10px;
        }

        #loopPlayerControls h2 {
            margin-top: 0;
        }

        #recordIndicator {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background-color: transparent;
            display: inline-block;
            margin-left: 10px;
        }

        #inputLevelIndicator {
            width: 100px;
            height: 20px;
            background-color: green;
            margin-top: 10px;
        }

        #timer {
            color: white;
            font-size: 20px;
        }