body {
  font-family: sans-serif;
}

form {
  display: flex;
  justify-content: center;
  align-items: stretch; 
  gap: 20px;
}

fieldset {
  flex: 1; 
  border-radius: 10px;
  border: 1px solid lightgray;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 10px;
  margin-bottom: 25px;
}

legend {
  font-size: 0.75em;
  text-transform: uppercase;
  padding: 0 10px;
}

.radio-label {
  display: inline-block;
  background-color: lightgray;
  padding: 10px;
  cursor: pointer;
  border-radius: 5px;
  margin: 5px;
}

input[type="radio"] {
  display: none;
}

input[type="radio"]:checked + .radio-label {
  background-color: black;
  color: white;
}

input[disabled] + .radio-label {
  opacity: 0.25;
  cursor: not-allowed;
}

#workspace {
  width: 700px;
  height: 700px;
  background-color: whitesmoke;
  border: 3px solid lightgray;
  border-radius: 10px;
  margin: 25px auto;
  position: relative;
  display: flex;
  justify-content: center; 
  align-items: center; 
}

.testimage-bg {
  background-color: lightgray;
  border: 1px dashed rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  color: black;
  position: relative;
}

.size-bg {
  border: 1px solid rgba(0, 0, 0, 0.5);
}

.overlay {
  position: absolute;
  background-color: rgba(255, 0, 0, 0.5); 
  z-index: 1;
}