* {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 13px;
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    overflow: hidden;
}

#toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 10px;
    background: #f0f0f0;
    border-bottom: 1px solid #ccc;
}

.info-item {
    color: #555;
}

.val {
    font-family: "Consolas", "Courier New", monospace;
    color: #000;
}

#canvas {
    display: block;
    touch-action: none;        /* prevent browser gestures (pan, zoom) on the canvas */
    overscroll-behavior: none; /* prevent pull-to-refresh and similar OS gestures */
}