body {
}

.canvas {
    width: 100%;
    height: 90vh;
    background-color: #f0f0f0;
    position: relative;
    overflow: hidden;
}

.shape {
    position: absolute;
    border: 2px solid #444;
    background-color: white;
    padding: 10px;
    cursor: move;
    user-select: none;
}

.rectangle {
    width: 100px;
    height: 60px;
}

.circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
}

.connector-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.selected {
    border-color: blue;
    box-shadow: 0 0 5px blue;
}

.sliding-panel {
    position: fixed;
    top: 0;
    right: -470px;
    width: 450px;
    height: 100%;
    background-color: #f8f8f8;
    box-shadow: -2px 0 5px rgba(0,0,0,0.2);
    transition: right 0.4s ease-in-out;
    z-index: 1000;
    padding: 1rem;
}

.sliding-panel.open {
    right: 0;
}