body {
  font-family: Arial, sans-serif;
  background: #f5f7fa;
  margin: 0;
  text-align: center;
}

header {
  background: #2563eb;
  color: white;
  padding: 20px;
}

.tool {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  padding: 20px;
}

.preview {
  position: relative;
  width: 300px;
  height: 300px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.preview img {
  position: absolute;
  width: 100%;
  height: auto;
  top: 0;
  left: 0;
}

.controls {
  background: white;
  padding: 20px;
  border-radius: 10px;
  width: 250px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

button {
  padding: 8px 12px;
  margin: 5px;
  cursor: pointer;
}

.download {
  background: #16a34a;
  color: white;
  border: none;
  padding: 10px 15px;
  border-radius: 5px;
}