/* Chassis Drive Population Styling - Modeled after https://raid-calculator.ai.studio/ */

.chassis-population-card-studio {
  background: var(--color-surface-lowest);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-lg);
  padding: 1.125rem 1.25rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Header */
.population-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid rgba(197, 198, 211, 0.35);
}

.population-title-group {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.population-step-badge {
  padding: 4px 8px;
  border-radius: var(--radius-base);
  background: var(--color-surface-container);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  border: 1px solid rgba(69, 95, 171, 0.15);
}

.population-main-heading {
  font-family: var(--font-headline);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-on-surface);
  line-height: 1.2;
}

.population-sub-heading {
  font-size: 0.75rem;
  color: var(--color-on-surface-variant);
  font-family: var(--font-body);
}

/* Carrier Count Display */
.carrier-count-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
}

.carrier-count-label {
  color: var(--color-on-surface-variant);
  font-weight: 500;
}

.carrier-count-value {
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.875rem;
}

.carrier-count-value strong {
  font-size: 1.125rem;
  color: var(--color-primary-brand);
}

/* Stepper & Range Slider */
.slider-stepper-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.stepper-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-base);
  background: var(--color-surface-container);
  border: 1px solid var(--color-outline-variant);
  color: var(--color-on-surface);
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  flex-shrink: 0;
}

.stepper-btn:hover:not(:disabled) {
  background: var(--color-surface-high);
  border-color: var(--color-primary-brand);
  color: var(--color-primary);
}

.stepper-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.slider-track-wrap {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
}

.population-range-slider {
  width: 100%;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: #dee2f6;
  border-radius: 4px;
  outline: none;
  cursor: pointer;
  accent-color: #2b4791;
  transition: background 0.15s;
}

.population-range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid #ffffff;
  box-shadow: 0 2px 6px rgba(43, 71, 145, 0.35);
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.15s ease;
}

.population-range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 3px 10px rgba(43, 71, 145, 0.45);
}

.population-range-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid #ffffff;
  box-shadow: 0 2px 6px rgba(43, 71, 145, 0.35);
  cursor: pointer;
}

/* Presets Toolbar */
.presets-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.presets-label {
  font-size: 0.75rem;
  color: var(--color-on-surface-variant);
  font-weight: 600;
}

.presets-btn-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.preset-btn {
  padding: 4px 10px;
  border-radius: var(--radius-base);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid var(--color-outline-variant);
  background: var(--color-surface-container);
  color: var(--color-on-surface);
  cursor: pointer;
  transition: all 0.15s ease;
}

.preset-btn:hover {
  background: var(--color-surface-high);
  border-color: var(--color-primary-brand);
  color: var(--color-primary);
}

.preset-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 1px 4px rgba(43, 71, 145, 0.25);
}

/* Control Groups: Carrier Count & Dedicated Hot Spares */
.population-control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hot-spares-group {
  padding-top: var(--space-xs);
  border-top: 1px solid rgba(197, 198, 211, 0.4);
}

.carrier-count-subtext {
  font-size: 0.6875rem;
  color: var(--color-on-surface-variant);
  font-family: var(--font-body);
  margin-top: 1px;
}

.hot-spare-value {
  color: #b45309;
}

.hot-spare-value strong {
  font-size: 1.125rem;
  color: #d97706;
}

/* Hot Spares Amber Slider & Presets */
.spare-range-slider {
  accent-color: #d97706;
}

.spare-range-slider::-webkit-slider-thumb {
  background: #d97706;
  border: 2px solid #ffffff;
  box-shadow: 0 2px 6px rgba(217, 119, 6, 0.35);
}

.spare-range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 3px 10px rgba(217, 119, 6, 0.45);
}

.spare-range-slider::-moz-range-thumb {
  background: #d97706;
  border: 2px solid #ffffff;
  box-shadow: 0 2px 6px rgba(217, 119, 6, 0.35);
}

.spare-preset-btn.active {
  background: #d97706;
  border-color: #d97706;
  color: #ffffff;
  box-shadow: 0 1px 4px rgba(217, 119, 6, 0.3);
}

.preset-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.font-amber {
  color: #d97706 !important;
}

/* Summary Bar */
.population-summary-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: var(--space-xs);
  border-top: 1px dashed rgba(197, 198, 211, 0.4);
}

.pop-stat-chip {
  background: var(--color-surface-tint);
  border: 1px solid rgba(69, 95, 171, 0.15);
  border-radius: var(--radius-base);
  padding: 3px 8px;
  font-size: 0.6875rem;
  display: flex;
  align-items: center;
  gap: 4px;
}

.pop-stat-chip .chip-label {
  color: var(--color-on-surface-variant);
}

.pop-stat-chip .chip-val {
  font-weight: 700;
  color: var(--color-primary);
}