/* ============================================
   CalcuFrance — Calculator Styles
   Formulaires et résultats — style institutionnel
   ============================================ */

/* --- Calculator Layout --- */
.calculator {
  max-width: 800px;
  margin: 0 auto;
}

/* --- Form Card --- */
.calc-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-xl);
}

.calc-form__title {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-primary);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.calc-form__group {
  margin-bottom: var(--space-lg);
}

.calc-form__group:last-child {
  margin-bottom: 0;
}

.calc-form__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.calc-form__hint {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-mention);
  margin-top: var(--space-xs);
  line-height: 1.4;
}

/* --- Input with unit --- */
.input-unit {
  position: relative;
  display: flex;
  align-items: center;
}

.input-unit__field {
  width: 100%;
  padding: 10px var(--space-md);
  padding-right: 3.5rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 0;
  font-size: var(--text-base);
  font-variant-numeric: tabular-nums;
  background: var(--color-surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -moz-appearance: textfield;
}

.input-unit__field::-webkit-outer-spin-button,
.input-unit__field::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.input-unit__field:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: inset 0 0 0 1px var(--color-primary);
}

.input-unit__suffix {
  position: absolute;
  right: var(--space-md);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  pointer-events: none;
}

/* --- Slider + Input combo --- */
.slider-input {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.slider-input__row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.slider-input__range {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--color-border-strong);
  outline: none;
  transition: background var(--transition-fast);
}

.slider-input__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 3px solid #FFFFFF;
  box-shadow: 0 0 0 1px var(--color-primary);
  transition: transform var(--transition-fast);
}

.slider-input__range::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.slider-input__range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 3px solid #FFFFFF;
  box-shadow: 0 0 0 1px var(--color-primary);
}

.slider-input__range::-moz-range-thumb:hover {
  transform: scale(1.1);
}

.slider-input__field {
  width: 140px;
  padding: 8px var(--space-md);
  border: 1px solid var(--color-border-strong);
  border-radius: 0;
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  text-align: right;
  background: var(--color-surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -moz-appearance: textfield;
}

.slider-input__field::-webkit-outer-spin-button,
.slider-input__field::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.slider-input__field:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: inset 0 0 0 1px var(--color-primary);
}

.slider-input__bounds {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-text-mention);
}

/* --- Radio Group --- */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.radio-group__option {
  position: relative;
}

.radio-group__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.radio-group__label {
  display: block;
  padding: 8px var(--space-lg);
  border: 1px solid var(--color-border-strong);
  border-radius: 0;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.radio-group__label:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.radio-group__input:checked + .radio-group__label {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #FFFFFF;
  font-weight: 600;
}

.radio-group__input:focus-visible + .radio-group__label {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* --- Select --- */
.calc-select {
  width: 100%;
  padding: 10px var(--space-md);
  padding-right: 2.5rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 0;
  font-size: var(--text-base);
  background-color: var(--color-surface);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M3 5L6 8L9 5' stroke='%23666666' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-md) center;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.calc-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: inset 0 0 0 1px var(--color-primary);
}

/* --- Results Card --- bleu institutionnel --- */
.calc-results {
  background: var(--color-primary);
  padding: var(--space-xl);
  margin-top: var(--space-xl);
  color: #FFFFFF;
}

.calc-results__title {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.calc-results__main {
  text-align: center;
  padding: var(--space-lg) 0;
  margin-bottom: var(--space-lg);
}

.calc-results__label {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-sm);
}

.calc-results__value {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 800;
  line-height: 1;
  color: #FFFFFF;
}

.calc-results__value--animated {
  transition: transform var(--transition-fast);
}

.calc-results__value--pop {
  animation: resultPop 0.3s ease;
}

@keyframes resultPop {
  0% { transform: scale(0.96); opacity: 0.5; }
  60% { transform: scale(1.02); }
  100% { transform: scale(1); opacity: 1; }
}

/* Result detail rows */
.calc-results__details {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.calc-results__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  font-size: var(--text-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.calc-results__row:last-child {
  border-bottom: none;
}

.calc-results__row-label {
  color: rgba(255, 255, 255, 0.7);
}

.calc-results__row-value {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.calc-results__row--highlight {
  padding: var(--space-md);
  margin: var(--space-sm) calc(-1 * var(--space-md));
  background: rgba(255, 255, 255, 0.08);
  border-bottom: none;
}

/* --- Secondary results card (lighter) --- */
.calc-results--light {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
}

.calc-results--light .calc-results__title {
  color: var(--color-text-secondary);
  border-bottom-color: var(--color-border);
}

.calc-results--light .calc-results__label {
  color: var(--color-text-secondary);
}

.calc-results--light .calc-results__value {
  color: var(--color-primary);
}

.calc-results--light .calc-results__row-label {
  color: var(--color-text-secondary);
}

.calc-results--light .calc-results__row-value {
  color: var(--color-text);
}

.calc-results--light .calc-results__row--highlight {
  background: var(--color-bg);
}

.calc-results--light .calc-results__row {
  border-bottom-color: var(--color-border);
}

/* --- Accordion details --- */
.calc-details {
  margin-top: var(--space-lg);
}

.calc-details__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.calc-details__toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.calc-details__toggle--light {
  background: var(--color-bg);
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.calc-details__toggle--light:hover {
  background: var(--color-border);
}

.calc-details__toggle-icon {
  transition: transform var(--transition-base);
  font-size: var(--text-xs);
}

.calc-details--open .calc-details__toggle-icon {
  transform: rotate(180deg);
}

.calc-details__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.calc-details--open .calc-details__content {
  max-height: 2000px;
}

.calc-details__inner {
  padding-top: var(--space-md);
}

/* --- Chart Section --- */
.chart-section {
  margin-top: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-xl);
}

.chart-section__title {
  font-size: var(--text-sm);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.chart-section__canvas {
  width: 100%;
  max-height: 350px;
}

/* --- Amortization table --- */
.amort-section {
  margin-top: var(--space-xl);
}

.amort-toggle {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.amort-toggle:hover {
  background: var(--color-primary-light);
}

.amort-toggle__icon {
  transition: transform var(--transition-base);
}

.amort-section--open .amort-toggle__icon {
  transform: rotate(180deg);
}

.amort-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.amort-section--open .amort-content {
  max-height: none;
}

.amort-controls {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
}

.amort-controls .btn {
  font-size: var(--text-xs);
  padding: var(--space-xs) var(--space-md);
}

.amort-table {
  margin-top: var(--space-md);
}

.amort-table th,
.amort-table td {
  font-size: var(--text-xs);
  padding: var(--space-sm) var(--space-md);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.amort-table th:first-child,
.amort-table td:first-child {
  text-align: left;
}

.amort-show-more {
  margin-top: var(--space-md);
  text-align: center;
}

/* --- Related calculators --- */
.related-section {
  padding: var(--space-2xl) 0;
}

.related-section__title {
  margin-bottom: var(--space-lg);
}

/* --- Calculator page wrapper --- */
.calc-page {
  padding-bottom: var(--space-2xl);
}

/* --- Responsive --- */
@media (min-width: 768px) {
  .calc-form {
    padding: var(--space-2xl);
  }

  .calc-results {
    padding: var(--space-2xl);
  }

  .calc-results__value {
    font-size: 3rem;
  }

  .slider-input__field {
    width: 160px;
  }
}

@media (min-width: 1024px) {
  .calculator--split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    max-width: 1000px;
    align-items: start;
  }

  .calculator--split .calc-results {
    margin-top: 0;
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
  }
}