body {
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
    font-family: Arial, sans-serif;
}

header, main, footer {
    width: 100%;
    max-width: 800px;
    margin-bottom: 20px;
}

header {
    text-align: center;
}

.description {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#sketch-container {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

#controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

#controls div {
    display: flex;
    align-items: center;
    gap: 10px;
}

label {
    min-width: 100px;
}

input[type="color"] {
    width: 50px;
    height: 30px;
    border: none;
    padding: 0;
}

#transcript-container {
    width: 100%;
}

#transcript {
    background-color: #fff;
    border: 1px solid #ddd;
    padding: 20px;
    border-radius: 5px;
    max-height: 400px;
    overflow-y: auto;
}

.message {
    margin-bottom: 10px;
    padding: 10px;
    border-radius: 5px;
}

.human {
    background-color: #e6f3ff;
}

.assistant {
    background-color: #f0f0f0;
}