.kt-container {
  display: flex;
  gap: 20px;
  margin: 30px auto;
  max-width: 1000px;
}
.kt-sidebar {
  width: 250px;
  background: #f4f4f4;
  padding: 20px;
  border-radius: 12px;
}
.kt-sidebar h3 {
  font-size: 18px;
  margin-bottom: 10px;
}
.kt-shape {
  display: block;
  margin-bottom: 10px;
  padding: 10px;
  width: 100%;
  background-color: #0073aa;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
.kt-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
}
.kt-gallery img {
  width: 100%;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid transparent;
}
.kt-gallery img:hover {
  border-color: #0073aa;
}
.kt-main {
  flex: 1;
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  text-align: center;
}
#kt-upload {
  margin-bottom: 20px;
}
canvas#kt-canvas {
  border: 1px solid #ccc;
  max-width: 100%;
  border-radius: 12px;
}
#kt-add-to-cart {
  margin-top: 20px;
  padding: 12px 30px;
  font-size: 16px;
  background-color: #28a745;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}