.duffing-oscillator-container {
    margin: 0;
    padding: 0;
    background-color: #1e1e1e;
    color: #ccc;
    display: flex;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.duffing-oscillator-container body {
    margin: 0;
    padding: 0;
    background-color: #1e1e1e;
}

.duffing-oscillator-app {
    font-family: Arial, sans-serif;
    display: flex;
    width: 800px;
    height: 600px;
    border: 1px solid #444;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    background-color: #2a2a2a;
}

.duffing-oscillator-app .visualization-container {
    width: 600px;
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
}

.duffing-oscillator-app .plot-track {
    flex: 1;
    border-bottom: 1px solid #444;
    position: relative;
    overflow: hidden;
}

.duffing-oscillator-app .plot-track:last-child {
    border-bottom: none;
}

.duffing-oscillator-app canvas {
    display: block;
    width: 100%;
    height: 100%;
    background-color: #000;
}

.duffing-oscillator-app .plot-title {
    position: absolute;
    top: 5px;
    left: 10px;
    color: #aaa;
    font-size: 12px;
    background-color: rgba(0,0,0,0.5);
    padding: 2px 5px;
    border-radius: 3px;
}

.duffing-oscillator-app .mouse-coordinates-display {
    position: absolute;
    bottom: 5px;
    right: 10px;
    color: #aaa;
    font-size: 12px;
    background-color: rgba(0,0,0,0.5);
    padding: 2px 5px;
    border-radius: 3px;
    z-index: 10;
}

.duffing-oscillator-app .control-panel {
    width: 200px;
    height: 100%;
    padding: 15px;
    border-left: 1px solid #444;
    overflow-y: auto;
    background-color: #333;
    box-sizing: border-box;
    font-size: 12px;
}

.duffing-oscillator-app .control-panel h3 {
    margin-top: 0;
    margin-bottom: 8px;
    color: #eee;
    text-align: center;
    font-size: 0.95em;
}

.duffing-oscillator-app .control-panel label {
    display: block;
    margin-bottom: 2px;
    font-size: 0.8em;
    color: #bbb;
}

.duffing-oscillator-app .control-panel input[type="range"],
.duffing-oscillator-app .control-panel input[type="number"],
.duffing-oscillator-app .control-panel select {
    width: calc(100% - 8px);
    margin-bottom: 5px;
    padding: 3px;
    background-color: #444;
    border: 1px solid #555;
    color: #ccc;
    border-radius: 3px;
    box-sizing: border-box;
    font-size: 0.85em;
}

.duffing-oscillator-app .control-panel input[type="range"] {
    padding: 0;
    margin-bottom: 4px;
}

.duffing-oscillator-app .control-panel input[type="checkbox"] {
    margin-bottom: 5px;
    vertical-align: middle;
    margin-right: 3px;
}

.duffing-oscillator-app .control-panel label span {
    float: right;
    color: #fff;
    font-size: 0.9em;
}

.duffing-oscillator-app .control-group {
    display: flex;
    align-items: center;
    margin-bottom: 6px;
}

.duffing-oscillator-app .control-group label {
    margin-bottom: 0;
    margin-right: 5px;
    flex-shrink: 0;
}

.duffing-oscillator-app .control-group input[type="number"] {
    width: 100%;
    margin-right: 8px;
    margin-bottom: 0;
}

.duffing-oscillator-app .control-group input[type="number"]:last-child {
    margin-right: 0;
}

.duffing-oscillator-app .toggles-group label {
    margin-right: 2px;
}

.duffing-oscillator-app .toggles-group input[type="checkbox"] {
    margin-bottom: 0;
    margin-right: 8px;
}

.duffing-oscillator-app .action-buttons {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
}

.duffing-oscillator-app .action-buttons button {
    padding: 5px;
    margin-bottom: 5px;
    background-color: #555;
    color: #fff;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.8em;
}

.duffing-oscillator-app .action-buttons button:hover {
    background-color: #666;
}

.duffing-oscillator-app .action-buttons button:active {
    background-color: #444;
}

.duffing-oscillator-app .info-display {
    margin-top: 15px;
    font-size: 0.8em;
    color: #aaa;
}

.duffing-oscillator-app .info-display span {
    display: block;
    margin-bottom: 5px;
}

/* Custom scrollbar for control panel (optional, for aesthetics) */
.duffing-oscillator-app .control-panel::-webkit-scrollbar {
    width: 8px;
}

.duffing-oscillator-app .control-panel::-webkit-scrollbar-track {
    background: #2a2a2a;
}

.duffing-oscillator-app .control-panel::-webkit-scrollbar-thumb {
    background: #555;
    border-radius: 4px;
}

.duffing-oscillator-app .control-panel::-webkit-scrollbar-thumb:hover {
    background: #666;
}