body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 20px;
}
.container {
  max-width: 1200px;
  margin: auto;
  background: white;
  padding: 20px;
  border-radius: 6px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.hidden {
  display: none;
}
.color-selectors {
  margin: 15px 0;
  display: flex;
  gap: 20px;
}
.color-selectors select {
  padding: 5px;
  font-size: 1rem;
  width: 3rem;
  height: 2rem;
  border: 1px solid #ccc;
  appearance: none;
  -webkit-appearance: none;
  background-repeat: no-repeat;
  background-position: center;
}
.color-selectors option {
  color: transparent;
}
#mainContent {
  display: flex;
  gap: 20px;
}
#buildSteps {
  flex: 2;
}
#panelPreview {
  flex: 1;
  background-color: #eee;
  height: 600px;
  border: 1px dashed #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  font-style: italic;
}
.step-card {
  border: 1px solid #ccc;
  background: #fafafa;
  padding: 15px;
  margin: 10px 0;
  border-radius: 4px;
  position: relative;
}
.step-card h3 {
  margin-top: 0;
}
.step-card .checkboxes {
  position: absolute;
  top: 10px;
  right: 15px;
}
.step-card input[type="checkbox"] {
  transform: scale(1.5);
  margin-left: 10px;
  margin-right: 5px;
}


button.danger {
  background-color: #f87171;
  border: none;
  color: white;
  padding: 10px 15px;
  font-size: 1rem;
  border-radius: 4px;
  cursor: pointer;
}
button.danger:hover {
  background-color: #ef4444;
}