body {
    display: flex;
    margin: 0;
    height: 100vh;
    font-family: Arial, sans-serif;
    background-color: #2c3e50;
    color: white;
}
#sidebar {
    width: 250px;
    background-color: #34495e;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0,0,0,0.5);
}
.spawn-btn {
    padding: 10px;
    margin-bottom: 10px;
    background-color: #7f8c8d;
    cursor: pointer;
    border-radius: 5px;
    text-align: center;
    user-select: none;
    color: #333;
    font-weight: bold;
}
.spawn-btn:hover {
    filter: brightness(1.1);
}
#lab-desk {
    flex-grow: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
}
#workspace {
    flex-grow: 1;
    background-color: #ecf0f1;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
    color: #333;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.1);
}
.atom {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    font-weight: bold;
    cursor: grab;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    user-select: none;
    border: 2px solid rgba(0,0,0,0.2);
}
.atom:active {
    cursor: grabbing;
}
.molecule {
    padding: 10px 20px;
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    font-weight: bold;
    cursor: grab;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    background-color: #f1c40f;
    user-select: none;
    border: 2px solid rgba(0,0,0,0.2);
}