* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-family: 'Arial', sans-serif;
}

.container {
    width: 95vw;
    height: 95vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    padding: 20px;
}

canvas{
    width: 100%;
    height: 100%;
    border: 3px solid #333;
    border-radius: 10px;
    background-color: white;
    display: block;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}