.sim-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: #f8f9fa;
  border-radius: 8px;
  border: 1px solid #e9ecef;
  align-items: flex-end;
}

.sim-controls label {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 140px;
  flex: 1 1 auto;
}

.sim-controls label:first-child {
  flex: 0 0 auto;
}

.sim-controls label > span:first-of-type {
  font-weight: 600;
  font-size: 0.875rem;
  color: #495057;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.25rem;
}

.sim-controls label:last-child > span:first-of-type {
  margin-bottom: 0.5rem;
}

.sim-controls select,
.sim-controls input[type="range"] {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: #212529;
  background-color: #ffffff;
  border: 1px solid #ced4da;
  border-radius: 4px;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px 12px;
  padding-right: 2.5rem;
}

.sim-controls select:hover {
  border-color: #adb5bd;
}

.sim-controls select:focus {
  outline: 0;
  border-color: #80bdff;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.sim-controls input[type="range"] {
  padding: 0;
  background-image: none;
  padding-right: 0;
  height: 6px;
  background-color: #dee2e6;
  border: none;
  border-radius: 3px;
  cursor: pointer;
}

.sim-controls input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  background-color: #007bff;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 0.15s ease-in-out;
}

.sim-controls input[type="range"]::-webkit-slider-thumb:hover {
  background-color: #0056b3;
}

.sim-controls input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background-color: #007bff;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  transition: background-color 0.15s ease-in-out;
}

.sim-controls input[type="range"]::-moz-range-thumb:hover {
  background-color: #0056b3;
}

#ctrl-level-label {
  font-weight: 600;
  color: #007bff;
  font-size: 0.9375rem;
  margin-top: 0.25rem;
  min-height: 1.5rem;
  display: flex;
  align-items: center;
}

.sim-download-btn {
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background-color: #007bff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.15s ease-in-out;
  white-space: nowrap;
}

.sim-download-btn:hover {
  background-color: #0056b3;
}

#plot-main {
  width: 100%;
  min-height: 400px;
  margin-top: 1rem;
}

.plot-description {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background-color: #f8f9fa;
  border-left: 4px solid #007bff;
  border-radius: 4px;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #495057;
  font-style: italic;
}

/* Policy comparison section */
.sim-section-divider {
  margin: 3rem 0 2rem;
  border: none;
  border-top: 1px solid #dee2e6;
}

.sim-section-intro {
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
  color: #495057;
}

.comparison-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background-color: #f8f9fa;
  border-radius: 8px;
  border: 1px solid #e9ecef;
}

.comparison-policy,
.comparison-mode {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 160px;
}

.comparison-policy h3,
.comparison-mode h3 {
  margin: 0 0 0.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #495057;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.comparison-policy label,
.comparison-mode label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.comparison-policy label > span:first-of-type,
.comparison-mode label > span:first-of-type {
  font-size: 0.8125rem;
  color: #6c757d;
}

.comparison-policy select,
.comparison-mode select {
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  border: 1px solid #ced4da;
  border-radius: 4px;
  background-color: #fff;
}

.comparison-plot {
  min-height: 280px;
  margin-top: 1rem;
}

.comparison-empty {
  padding: 2rem;
  text-align: center;
  color: #6c757d;
  font-style: italic;
}

.sim-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

/* Responsive design */
@media (max-width: 768px) {
  .sim-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 1.25rem;
    padding: 1.25rem;
  }

  .sim-controls label {
    min-width: 100%;
  }
}

@media (min-width: 900px) {
  .sim-grid {
    grid-template-columns: 1fr 1fr;
  }
  #plot-profit {
    grid-column: 1 / span 2;
  }
}