.service-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

#bg-form {
    margin-bottom: 20px;
}

#image-input {
    margin-bottom: 10px;
}

#result img {
    max-width: 100%;
    height: auto;
}
@media (max-width: 600px) {
   .control-row {
       flex-direction: column !important;
   }
}
.canvas-wrap {
    position: relative;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
    border: 1px solid var(--border);
    background-color: #eee;
}
.checkerboard {
    background-image:
      linear-gradient(45deg, #ccc 25%, transparent 25%),
      linear-gradient(-45deg, #ccc 25%, transparent 25%),
      linear-gradient(45deg, transparent 75%, #ccc 75%),
      linear-gradient(-45deg, transparent 75%, #ccc 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    background-color: #fff;
}
#main-canvas {
    display: block;
    max-width: 100%;
    height: auto;
}
#overlay-canvas {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 100%;
    height: auto;
    pointer-events: auto; /* Ensure it captures clicks */
}