/* =============================================================
   CALCULATEUR ROI — composant partagé
   Utilisé dans 02-landing/ et 04-roi/
   ============================================================= */

.calc {
  background-color: var(--color-cream-deep);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px -28px rgba(20, 19, 15, 0.22);
  overflow: hidden;
  border: 1px solid rgba(20, 19, 15, 0.06);
  position: relative;
}

/* --- Chrome de fenêtre ------------------------------------ */
.calc__chrome {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid rgba(20, 19, 15, 0.08);
  background-color: rgba(20, 19, 15, 0.025);
}

.calc__dots {
  display: flex;
  gap: 6px;
}

.calc__dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(20, 19, 15, 0.18);
}

.calc__label {
  font-family: var(--font-mono);
  font-size: var(--text-eyebrow);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-stone);
}

.calc__chrome-action {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--text-eyebrow);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--color-klein-deep);
  padding-bottom: 2px;
  transition: color var(--duration-fast) var(--ease-out);
  background: none;
  border-left: none;
  border-right: none;
  border-top: none;
  cursor: pointer;
}

.calc__chrome-action:hover {
  color: var(--color-klein-deep);
}

.calc__chrome-action.is-copied {
  color: var(--color-klein);
  border-color: var(--color-klein);
}

/* --- Corps : grille 2 colonnes ---------------------------- */
.calc__body {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
}

.calc__divider {
  background-color: rgba(20, 19, 15, 0.08);
}

.calc__inputs,
.calc__results {
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* --- Input control ---------------------------------------- */
.calc-input {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.calc-input__label {
  font-family: var(--font-mono);
  font-size: var(--text-eyebrow);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-stone);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.calc-input__label-unit {
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-stone);
}

.calc-input__row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.calc-input__btn {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-cream);
  border: 1px solid rgba(20, 19, 15, 0.12);
  border-radius: var(--radius-md);
  color: var(--color-ink);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  transition:
    background-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
  user-select: none;
  flex-shrink: 0;
}

.calc-input__btn:hover {
  background-color: var(--color-klein);
  color: var(--color-cream);
  border-color: var(--color-klein);
}

.calc-input__btn:active {
  transform: translateY(1px) scale(0.96);
}

.calc-input__value {
  flex: 1;
  min-width: 0;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 500;
  font-variation-settings: "opsz" 48;
  color: var(--color-ink);
  background: transparent;
  border: none;
  outline: none;
  text-align: center;
  padding: var(--space-1) 0;
  -moz-appearance: textfield;
}

.calc-input__value:focus-visible {
  outline: 2px solid var(--color-klein);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

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

/* --- Slider ----------------------------------------------- */
.calc-input__slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 2px;
  background-color: rgba(20, 19, 15, 0.14);
  outline: none;
  cursor: pointer;
  padding: 0;
  margin: var(--space-1) 0;
}

.calc-input__slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-klein);
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-out),
              background-color var(--duration-fast) var(--ease-out);
  border: 2px solid var(--color-cream-deep);
  box-shadow: 0 0 0 1px var(--color-klein);
}

.calc-input__slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.calc-input__slider:active::-webkit-slider-thumb {
  background-color: var(--color-klein-deep);
  box-shadow: 0 0 0 1px var(--color-klein-deep);
}

.calc-input__slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-klein);
  cursor: pointer;
  border: 2px solid var(--color-cream-deep);
  box-shadow: 0 0 0 1px var(--color-klein);
}

.calc-input__bounds {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-stone);
  margin-top: -2px;
}

/* --- Résultats : hero (économie mensuelle) ---------------- */
.calc__hero-result {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.calc__hero-label {
  font-family: var(--font-mono);
  font-size: var(--text-eyebrow);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-stone);
}

.calc__hero-value {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  line-height: 0.95;
  font-weight: 500;
  font-variation-settings: "opsz" 96;
  color: var(--color-klein);
  letter-spacing: var(--tracking-tight);
}

.calc__hero-value.is-negative {
  color: var(--color-stone);
}

.calc__hero-suffix {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-stone);
  margin-top: var(--space-1);
}

/* --- Graphique en barres ---------------------------------- */
.calc__bars {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid rgba(20, 19, 15, 0.08);
  border-radius: var(--radius-md);
  background-color: rgba(244, 237, 226, 0.45);
}

.calc-bar {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.calc-bar__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-3);
}

.calc-bar__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-stone);
}

.calc-bar__amount {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-ink);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.calc-bar__track {
  height: 8px;
  background-color: rgba(20, 19, 15, 0.06);
  border-radius: 2px;
  overflow: hidden;
}

.calc-bar__fill {
  height: 100%;
  background-color: var(--color-ink);
  border-radius: 2px;
  transition: width var(--duration-slow) var(--ease-out);
  width: 0;
}

.calc-bar__fill--ai {
  background-color: var(--color-klein);
}

.calc-bar__fill--diff {
  background-color: var(--color-klein-deep);
}

.calc-bar__fill--diff.is-negative {
  background-color: var(--color-stone);
}

/* --- Résultats secondaires -------------------------------- */
.calc__secondary {
  display: flex;
  flex-direction: column;
  border-top: 1px solid rgba(20, 19, 15, 0.08);
  padding-top: var(--space-4);
  gap: var(--space-3);
}

.calc__sec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: var(--text-sm);
  gap: var(--space-3);
}

.calc__sec-row + .calc__sec-row {
  border-top: 1px dashed rgba(20, 19, 15, 0.08);
  padding-top: var(--space-3);
}

.calc__sec-label {
  color: var(--color-stone);
}

.calc__sec-value {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-ink);
  font-variant-numeric: tabular-nums;
}

/* --- Responsive ------------------------------------------- */
@media (max-width: 880px) {
  .calc__body {
    grid-template-columns: 1fr;
  }
  .calc__divider {
    height: 1px;
    width: 100%;
  }
  .calc__inputs,
  .calc__results {
    padding: var(--space-6);
  }
  .calc__hero-value {
    font-size: var(--text-4xl);
  }
}

@media (max-width: 480px) {
  .calc__chrome {
    flex-wrap: wrap;
    gap: var(--space-2);
  }
  .calc__chrome-action {
    margin-left: 0;
    width: 100%;
  }
}