/* Styles for the DFT/DTFT/Z-transform intuition page */
.checkbox-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  color: var(--text-color, #333);
  cursor: pointer;
}
.checkbox-group input[type="number"] {
  width: 60px;
}
.checkbox-group input[type="checkbox"] {
  appearance: none;
  width: 1em;
  height: 1em;
  border: 2px solid var(--primary-color, #007acc);
  border-radius: 4px;
  position: relative;
  cursor: pointer;
}
.checkbox-group input[type="checkbox"]::after {
  content: "\2713";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  color: #fff;
  font-size: 0.75em;
  transition: transform 0.15s ease;
}
.checkbox-group input[type="checkbox"]:checked {
  background: var(--primary-color, #007acc);
}
.checkbox-group input[type="checkbox"]:checked::after {
  transform: translate(-50%, -50%) scale(1);
}
.plot-container {
  height: 800px;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}