body {
    margin: 0;
    display: flex;
    height: 100vh;
    overflow: hidden;
}

#app {
    display: flex;
    width: 100%;
}

#sidebar {
    width: 80px;
    background: #2C3E50;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 20px;
}

#sidebar button {
    background: #ECF0F1;
    border: none;
    margin: 7px;
    padding: 10px;
    cursor: pointer;
    border-radius: 5px;
}

#sidebar button.active {
    background: #3498DB;
    color: #FFF;
}

#canvas-container {
    flex-grow: 1;
    position: relative;
}

#drawingCanvas {
    width: 100%;
    height: 100%;
    border: 1px solid #ccc;
    position: absolute;
    top: 0;
    left: 0;
    background-image: linear-gradient(to right, #d3d3d3 1px, transparent 1px),linear-gradient(to bottom, #d3d3d3 1px, transparent 1px);
    background-size: 10px 10px; /* Tamaño de las celdas */
    background-color: white; /* Fondo del canvas */
}

.submenu {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    border: 1px solid #ccc;
    padding: 10px;
    z-index: 1001;
}

.submenu button {
    display: block;
    margin: 5px 0;
}