body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    text-align: center;
}

.controls {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin: 20px 0;
    gap: 10px;
}

button {
    padding: 10px 20px;
    cursor: pointer;
    border: none;
    background: #333;
    font-size: 16px;
    color: #fff;
    border-radius: 6px;
    transition: 0.3s ease;
}

button:hover {
    background: #555;
    transform: translateY(-2px);
}

.container { /* the box where the particles will be */
    width: 700px;
    height: 400px;
    margin: 20px auto;
    border: 2px solid black;
    position: relative; 
    overflow: hidden;
    background: white;
}

.particle {
    width: 12px;       /* small circle particle */
    height: 12px;
    border-radius: 50%;
    position: absolute; /* so that the particles can actually move */
    background: blue;   /*color for the solids*/
    transition: background 0.5s ease; /* to have a smoother color transition */
    box-shadow: 0 0 8px currentColor; /* to make the particles glow b/c why not*/
}

#connectionSVG {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* Magnifier styles */
#magnifier {
    position: absolute;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    overflow: hidden;
    pointer-events: none;
    border: 2px solid rgba(255,255,255,0.35);
    box-shadow: 0 6px 18px rgba(0,0,0,0.35);
    transform: translate(-50%, -50%);
    background: rgba(255,255,255,0.02);
    z-index: 30; /* above mask */
}

#magnifier-inner {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: 0 0;
}

.hidden {
    display: none;
}

.magnified {
    box-shadow: 0 0 6px rgba(0,0,0,0.35), 0 0 8px currentColor;
    outline: 1px solid rgba(255,255,255,0.85);
    outline-offset: -1px;
    transform-origin: center;
    transform: scale(0.85);
    pointer-events: none;
}

/* Mask circle that covers original particles under the magnifier */
#maskCircle {
    position: absolute;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: white; /* match container background */
    pointer-events: none;
    z-index: 20; /* below magnifier but above originals */
    transform: translate(-50%, -50%);
}

.home-button {
    position: fixed;       /* stays in place */
    top: 15px;
    left: 15px;
    padding: 10px 18px;
    background: #222;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    z-index: 1000;         /* above everything */
    transition: 0.3s ease;
}

.home-button:hover {
    background: #444;
    transform: translateY(-2px);
}