/* ══════════════════════════════════════════════
   CALCULADORA.CSS — Compra Turbo
   Estilos da calculadora de BTU em /calculadora-de-btus
   Card light destacando o formulario sobre o fundo dark da pagina.
   Dependencias: tokens.css, forms.css, buttons.css, cards.css
   ══════════════════════════════════════════════ */

/* ── SECAO HOSPEDEIRA ────────────────────────── */
/* A secao da calculadora usa fundo do bg-light pra contrastar com
   o hero dark acima e o conteudo SEO dark abaixo. */
.calculator-section {
  background: var(--bg-light);
  padding: var(--space-3xl) 0 var(--space-4xl);
}

/* ── CONTAINER DA CALCULADORA ────────────────── */
.calculator {
  background: var(--bg-light-card);
  border: 1px solid var(--border-light-card);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.04),
    0 16px 48px rgba(0, 0, 0, 0.06);
  max-width: 1100px;
  margin: 0 auto;
}

/* ── TABS SIMPLIFICADO / COMPLETO ────────────── */
/* Override local do .tabs global — fundo light requer ajuste de cor.
   O componente .tabs de components.css assume fundo dark. */
.calculator__tabs {
  border-bottom-color: var(--border-light);
  margin-bottom: var(--space-xl);
  padding-bottom: 0;
  gap: var(--space-sm);
}

.calculator__tabs .tabs__btn {
  color: var(--text-dark-soft);
  background: transparent;
}

.calculator__tabs .tabs__btn:hover {
  color: var(--text-dark);
  background: transparent;
}

.calculator__tabs .tabs__btn--active {
  color: var(--brand-orange);
  border-bottom-color: var(--brand-orange);
}

/* ── LAYOUT 2 COLUNAS (desktop) / STACK (mobile) ── */
.calculator__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 900px) {
  .calculator__layout {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
  }
}

/* ── COLUNA DO FORMULARIO ────────────────────── */
.calculator__form {
  min-width: 0; /* evita overflow do grid */
}

.calculator__panel-intro {
  font-size: var(--fs-small);
  color: var(--text-dark-soft);
  margin-bottom: var(--space-lg);
  font-style: italic;
}

/* Override de .field pro contexto light */
.calculator .field__label {
  color: var(--text-dark-muted);
}

.calculator .field__input,
.calculator .field__select,
.calculator .field__textarea {
  background: var(--bg-light);
  border-color: var(--border-light);
  color: var(--text-dark);
}

.calculator .field__input::placeholder,
.calculator .field__textarea::placeholder {
  color: var(--text-dark-soft);
}

.calculator .field__input:focus,
.calculator .field__select:focus,
.calculator .field__textarea:focus {
  border-color: var(--brand-orange);
  box-shadow: 0 0 0 3px var(--brand-orange-08);
}

/* Estado de erro (WCAG 3.3.1/3.3.3) — inline em vez de alert().
   Forms.css ja define a base; aqui so adaptamos pro card light. */
.calculator .field--error .field__input,
.calculator .field--error .field__select {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.12);
}

.calculator .field__error {
  display: none;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-error);
  margin-top: 6px;
  padding-left: 2px;
}

.calculator .field--error .field__error {
  display: block;
}

/* ── PLACEHOLDER (construcao das proximas camadas) ── */
.calculator__placeholder {
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  background: var(--bg-light);
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-dark-soft);
  font-style: italic;
}

/* ── GRID DE CAMPOS DO FORMULARIO ────────────── */
.calculator__form-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* ── FIELDSET (radios, checkboxes) ───────────── */
.calculator__fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

.calculator__fieldset .field__label {
  display: block;
  margin-bottom: var(--space-sm);
}

.calculator__fieldset-hint {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-dark-soft);
  font-size: 0.85em;
}

.calculator__radio-group,
.calculator__checkbox-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

@media (min-width: 600px) {
  .calculator__radio-group {
    grid-template-columns: repeat(4, 1fr);
  }
  .calculator__checkbox-group {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── STEPPER (quantidade de eletronicos) ────── */
.calculator__stepper-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

@media (min-width: 600px) {
  .calculator__stepper-group {
    grid-template-columns: repeat(2, 1fr);
  }
}

.calculator__stepper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  min-height: 44px;
  transition: border-color var(--duration-fast) ease;
}

.calculator__stepper:hover {
  border-color: var(--highlight-border);
}

/* Quando qty > 0, destaca o stepper */
.calculator__stepper.is-active {
  border-color: var(--brand-orange);
  background: var(--highlight-bg);
}

.calculator__stepper-label {
  font-size: var(--fs-small);
  color: var(--text-dark);
  font-weight: 500;
  flex: 1;
  min-width: 0;
  cursor: default;
}

.calculator__stepper.is-active .calculator__stepper-label {
  font-weight: 700;
}

.calculator__stepper-controls {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.calculator__stepper-controls button {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  background: var(--bg-light-card);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  color: var(--brand-orange);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--duration-fast) ease,
              background var(--duration-fast) ease,
              transform var(--duration-fast) ease;
}

.calculator__stepper-controls button:hover {
  border-color: var(--brand-orange);
  background: var(--highlight-bg);
  transform: scale(1.05);
}

.calculator__stepper-controls button:active {
  transform: scale(0.95);
}

.calculator__stepper-controls button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none;
}

.calculator__stepper-controls input {
  width: 36px;
  text-align: center;
  border: none;
  background: transparent;
  font-weight: 700;
  font-size: var(--fs-body);
  color: var(--text-dark);
  font-variant-numeric: tabular-nums;
  padding: 0;
  /* Esconde as arrows nativas em WebKit/Firefox */
  -moz-appearance: textfield;
}

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

/* ── DISCLAIMER ──────────────────────────────── */
.calculator-disclaimer-section {
  background: var(--bg-light);
  padding-top: 0;
  padding-bottom: var(--space-3xl);
}

.calculator__disclaimer {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-light-card);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--text-dark-soft);
  border-radius: var(--radius-sm);
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--text-dark-muted);
}

.calculator__disclaimer svg {
  flex-shrink: 0;
  color: var(--text-dark-soft);
  margin-top: 2px;
}

.calculator__disclaimer p {
  margin: 0;
}

.calculator__disclaimer strong {
  color: var(--text-dark);
  font-weight: 700;
}

/* Cada opcao vira um chip clicavel */
.calculator__radio,
.calculator__checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--fs-small);
  color: var(--text-dark);
  transition: border-color var(--duration-fast) ease,
              background var(--duration-fast) ease;
  min-height: 44px; /* touch target WCAG */
}

.calculator__radio:hover,
.calculator__checkbox:hover {
  border-color: var(--brand-orange);
  background: var(--highlight-bg);
}

.calculator__radio input,
.calculator__checkbox input {
  accent-color: var(--brand-orange);
  flex-shrink: 0;
}

/* Estado selecionado (tem :has moderno; fallback eh so hover) */
.calculator__radio:has(input:checked),
.calculator__checkbox:has(input:checked) {
  border-color: var(--brand-orange);
  background: var(--highlight-bg);
  font-weight: 600;
}

/* ── WIZARD (aba Completo) ───────────────────── */
.calculator__progress {
  margin-bottom: var(--space-lg);
}

.calculator__progress-bar {
  height: 4px;
  background: var(--border-light);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.calculator__progress-fill {
  height: 100%;
  background: var(--brand-orange);
  border-radius: var(--radius-full);
  transition: width var(--duration-normal) var(--ease-out);
}

.calculator__progress-label {
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dark-muted);
  font-weight: 600;
}

.calculator__wizard-step {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.calculator__wizard-step[hidden] {
  display: none;
}

.calculator__wizard-actions {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-light);
}

.calculator__wizard-actions .btn--ghost {
  color: var(--text-dark-soft);
}

.calculator__wizard-actions .btn--ghost:hover {
  color: var(--text-dark);
  border-bottom-color: var(--text-dark);
}

.calculator__wizard-actions [hidden] {
  display: none;
}

.calculator__wizard-actions [data-wizard-next],
.calculator__wizard-actions [data-wizard-submit] {
  margin-left: auto;
}

/* ── BOTAO CALCULAR ──────────────────────────── */
.calculator__actions {
  display: flex;
  justify-content: flex-start;
  margin-top: var(--space-sm);
}

.calculator__actions .btn--primary {
  width: 100%;
  justify-content: center;
}

@media (min-width: 500px) {
  .calculator__actions .btn--primary {
    width: auto;
    justify-content: flex-start;
  }
}

/* ── RESULTADO PREENCHIDO (com animacao de entrada) ── */
.calculator__result-filled {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  flex: 1;
}

/* Anima entrada do card (fade + slide-up). Classe --revealed ligada via JS.
   Respeita prefers-reduced-motion (sem transicao). */
.calculator__result--filled .calculator__result-filled {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--duration-reveal) var(--ease-out),
              transform var(--duration-reveal) var(--ease-out);
}

.calculator__result--revealed .calculator__result-filled {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .calculator__result--filled .calculator__result-filled {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Botao Recalcular no topo do card preenchido */
.calculator__result-reset {
  align-self: flex-start;
  background: transparent;
  border: none;
  color: var(--text-dark-soft);
  font-size: var(--fs-xs);
  font-weight: 600;
  cursor: pointer;
  padding: 4px 8px;
  margin: -4px 0 0 -8px;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) ease,
              background var(--duration-fast) ease;
}

.calculator__result-reset:hover {
  color: var(--brand-orange);
  background: var(--highlight-bg);
}

.calculator__result-eyebrow {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand-orange);
}

.calculator__result-value {
  font-family: var(--ff-heading);
  font-size: var(--fs-metric); /* clamp(48px, 6vw, 72px) */
  font-weight: 900;
  line-height: 1;
  color: var(--text-dark);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.calculator__result-value small {
  font-size: 0.45em;
  font-weight: 600;
  color: var(--text-dark-muted);
  margin-left: 6px;
  letter-spacing: 0.05em;
}

.calculator__result-model {
  font-family: var(--ff-heading);
  font-size: var(--fs-card-title);
  font-weight: 700;
  color: var(--text-dark);
  margin-top: -4px;
}

.calculator__result-desc {
  font-size: var(--fs-small);
  color: var(--text-dark-soft);
  line-height: 1.5;
}

/* Comparativo Inverter x Convencional (tabela mini) */
.calculator__comparison {
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-top: var(--space-sm);
}

.calculator__comparison-title {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dark-muted);
  margin-bottom: var(--space-sm);
}

.calculator__comparison-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-xs) 0;
  font-size: var(--fs-small);
  color: var(--text-dark);
  font-variant-numeric: tabular-nums;
}

.calculator__comparison-row + .calculator__comparison-row {
  border-top: 1px dashed var(--border-light);
}

.calculator__comparison-label {
  font-weight: 600;
}

.calculator__comparison-row--highlight {
  color: var(--brand-orange);
  font-weight: 700;
}

/* Placeholders dos CTAs de compra (implementacao na Camada 4) */
.calculator__cta-group {
  display: grid;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

@media (min-width: 500px) {
  .calculator__cta-group {
    grid-template-columns: 1fr 1fr;
  }
}

.calculator__cta-group .btn--primary {
  width: 100%;
  justify-content: center;
  font-size: var(--fs-xs);
  padding: 12px 16px;
  text-decoration: none;
}

.calculator__comparison-note {
  font-size: var(--fs-xs);
  color: var(--text-dark-muted);
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px dashed var(--border-light);
  line-height: 1.5;
}

.calculator__comparison-note strong {
  color: var(--brand-orange);
  font-weight: 700;
}

/* ── BREAKDOWN DA FORMULA (transparencia) ───── */
.calculator__breakdown {
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  margin-top: var(--space-sm);
}

.calculator__breakdown summary {
  cursor: pointer;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dark-muted);
  list-style: none;
  padding: var(--space-xs) 0;
}

.calculator__breakdown summary::-webkit-details-marker {
  display: none;
}

.calculator__breakdown[open] summary {
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border-light);
}

.calculator__breakdown ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.calculator__breakdown li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: var(--space-xs) 0;
  font-size: var(--fs-small);
  color: var(--text-dark-muted);
  gap: var(--space-md);
  font-variant-numeric: tabular-nums;
}

.calculator__breakdown li strong {
  color: var(--text-dark);
  font-weight: 700;
  flex-shrink: 0;
}

.calculator__breakdown li.is-subtotal {
  border-top: 1px dashed var(--border-light);
  padding-top: var(--space-sm);
  margin-top: var(--space-xs);
  color: var(--text-dark-soft);
  font-weight: 600;
}

.calculator__breakdown li.is-total {
  border-top: 2px solid var(--brand-orange);
  padding-top: var(--space-sm);
  margin-top: var(--space-sm);
  color: var(--brand-orange);
  font-size: var(--fs-body);
  font-weight: 700;
}

.calculator__breakdown li.is-total strong {
  color: var(--brand-orange);
}

/* ── SHARE WHATSAPP ──────────────────────────── */
.calculator__share {
  margin-top: var(--space-sm);
}

.calculator__share .btn--ghost {
  width: 100%;
  justify-content: center;
  color: var(--text-dark-soft);
  border-bottom: 1px solid transparent;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--fs-xs);
}

.calculator__share .btn--ghost:hover {
  color: var(--color-whatsapp);
  border-bottom-color: var(--color-whatsapp);
}

.calculator__share .btn--ghost svg {
  color: var(--color-whatsapp);
}

/* ── EMAIL OPCIONAL ──────────────────────────── */
.calculator__email {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px dashed var(--border-light);
}

.calculator__email-label {
  display: block;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text-dark-muted);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.05em;
}

.calculator__email-row {
  display: flex;
  gap: var(--space-sm);
}

.calculator__email-row .field__input {
  flex: 1;
  min-width: 0;
}

.calculator__email-row .btn--primary {
  flex-shrink: 0;
  padding: 12px 16px;
  font-size: var(--fs-xs);
}

.calculator__email-note {
  font-size: var(--fs-xs);
  margin-top: var(--space-sm);
  min-height: 1.2em;
  color: var(--text-dark-soft);
}

.calculator__email-note--success {
  color: var(--color-success);
}

.calculator__email-note--error {
  color: var(--color-error);
}

.calculator__email-note--warning {
  color: var(--text-dark);
  line-height: 1.6;
}

/* Botoes inline de "Corrigir" / "Usar assim mesmo" na sugestao de typo */
.calculator__email-note button {
  background: transparent;
  border: 1px solid var(--brand-orange);
  color: var(--brand-orange);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-xs);
  font-weight: 600;
  cursor: pointer;
  margin: 0 2px;
  transition: background var(--duration-fast) ease;
}

.calculator__email-note button:hover {
  background: var(--highlight-bg);
}

.calculator__email-typo-ignore {
  border-color: var(--text-dark-soft) !important;
  color: var(--text-dark-soft) !important;
}

/* Nota LGPD discreta abaixo do campo */
.calculator__email-lgpd {
  font-size: 10.5px;
  color: var(--text-dark-soft);
  margin-top: var(--space-sm);
  line-height: 1.5;
  opacity: 0.85;
}

.calculator__email-lgpd a {
  color: var(--text-dark-soft);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.calculator__email-lgpd a:hover {
  color: var(--brand-orange);
}

/* ── COLUNA DO RESULTADO ─────────────────────── */
.calculator__result {
  background: linear-gradient(135deg, rgba(212, 80, 10, 0.06), rgba(212, 80, 10, 0.02));
  border: 1px solid var(--highlight-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  min-height: 280px;
  display: flex;
  flex-direction: column;
}

@media (min-width: 900px) {
  .calculator__result {
    position: sticky;
    top: calc(var(--header-height) + var(--space-lg));
  }
}

/* Estado inicial (antes do calculo) */
.calculator__result-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-md);
  color: var(--text-dark-soft);
  padding: var(--space-xl) var(--space-md);
  flex: 1;
}

.calculator__result-empty svg {
  color: var(--brand-orange);
  opacity: 0.5;
}

.calculator__result-empty p {
  font-size: var(--fs-body);
  color: var(--text-dark-soft);
  max-width: 260px;
  line-height: 1.5;
}

/* Nota: estilos dos estados preenchidos (valor do BTU, modelo,
   comparativo Inverter vs Conv, CTAs) serao adicionados nas
   Camadas 2/3/4 conforme funcionalidade for sendo implementada. */