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

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

.container {
    text-align: center;
    background-color: white;
    padding: 15px 10px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    max-width: 98vw;
}

h1 {
    color: #333;
    margin-bottom: 10px;
}

p {
    color: #666;
    margin-bottom: 20px;
}

#canvas {
    border: 2px solid #333;
    cursor: default;
    background-color: #fafafa;
    display: block;
    margin: 0 auto;
}

#canvas.grabbing {
    cursor: grabbing;
}

.reset-btn {
    margin-top: 15px;
    padding: 10px 20px;
    font-size: 16px;
    background-color: #2196F3;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.reset-btn:hover {
    background-color: #1976D2;
}

.reset-btn:active {
    background-color: #0D47A1;
}