body {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    background-color: #1a1a1a;
    color: #f0f0f0;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 0;
}

#controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 300px;
    padding: 20px;
    background-color: #2a2a2a;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    max-height: calc(100vh - 40px);
    overflow-y: auto;
    margin: 20px;
    flex-shrink: 0;
}

.control-group-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

input[type="number"] {
    width: 60px;
    padding: 4px;
    background-color: #333;
    color: #f0f0f0;
    border: 1px solid #555;
    border-radius: 4px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.control-group label {
    font-size: 14px;
    font-weight: bold;
}

.control-group .value-label {
    font-size: 12px;
    color: #aaa;
    margin-left: 5px;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    background: #444;
    outline: none;
    border-radius: 4px;
    transition: opacity 0.2s;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: #007bff;
    cursor: pointer;
    border-radius: 50%;
}

input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: #007bff;
    cursor: pointer;
    border-radius: 50%;
}

select,
button {
    padding: 8px;
    border-radius: 4px;
    border: 1px solid #555;
    background-color: #333;
    color: #f0f0f0;
    font-size: 14px;
    cursor: pointer;
}

button:hover {
    background-color: #444;
}

button.recording {
    background-color: #d00;
    border-color: #f00;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 5px;
}

#canvas-container {
    border: 2px solid #444;
    padding: 0;
    margin: 0;
    line-height: 0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    margin-top: 20px;
}