body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background: #f0f0f0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    color: #333;
}

.upload-container {
    text-align: center;
    margin: 20px 0;
}

input[type="file"] {
    display: none;
}

.upload-btn {
    background: #4CAF50;
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    display: inline-block;
}

.upload-btn:hover {
    background: #45a049;
}

.canvas-container {
    display: flex;
    justify-content: space-between;
    margin: 20px 0;
    flex-wrap: wrap;
    gap: 20px;
}

canvas {
    max-width: 100%;
    height: auto;
    border: 1px solid #ddd;
}

.controls {
    text-align: center;
}

input[type="range"] {
    width: 200px;
    margin: 10px;
}

button {
    background: #2196F3;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin: 10px;
}

button:hover {
    background: #1976D2;
}