/* ==========================================================================
   COMPONENTS — camada 4 da arquitetura ITCSS
   Componentes reutilizáveis nomeados em BEM: botões, cards, chips, FAQ,
   mockup de celular, carrossel, formulário.
   ========================================================================== */

/* --- Botões --------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6); /* 16px / 24px */
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: var(--text-body);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast),
              color var(--transition-fast),
              transform var(--transition-fast);
}

.btn:active { transform: translateY(1px); }

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* Primário: dourado sólido com texto escuro */
.btn--primary {
  background-color: var(--gold);
  color: var(--background);
}

.btn--primary:hover {
  background-color: var(--gold-soft);
  color: var(--background);
}

/* Secundário: contorno dourado */
.btn--secondary {
  background-color: transparent;
  border-color: var(--gold);
  color: var(--gold-soft);
}

.btn--secondary:hover {
  background-color: color-mix(in srgb, var(--gold) 12%, transparent);
  color: var(--gold-soft);
}

/* Variante compacta para o header */
.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-small);
}

/* --- Cards ------------------------------------------------------------------ */
/* Elevação por contraste (superfície + borda), nunca por sombra pesada. */
.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-color: var(--surface-high);
  border: 1px solid var(--border);
  color: var(--gold);
  margin-bottom: var(--space-4);
}

.card__icon svg { width: 24px; height: 24px; }

.card__title {
  font-size: var(--text-h5);
  margin-bottom: var(--space-3);
}

.card__text {
  color: var(--cream-muted);
  font-size: var(--text-small);
}

/* --- Chips / tags -------------------------------------------------------------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  color: var(--cream-muted);
  font-size: var(--text-small);
  font-weight: 600;
  white-space: nowrap;
}

/* Estado ativo: fundo dourado, texto escuro, check à esquerda */
.chip--active {
  background-color: var(--gold);
  border-color: var(--gold);
  color: var(--background);
}

.chip--active::before {
  content: '✓';
  font-weight: 800;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* --- Círculo de tom (como no app: tom da cifra em círculo dourado) -------------- */
.key-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  color: var(--gold);
  font-weight: 800;
  font-size: var(--text-small);
  flex-shrink: 0;
}

/* --- Lockup da marca (CAPE✝LA / ACÚSTICA) ---------------------------------------- */
.brand-lockup {
  color: var(--cream);
}

.brand-lockup--image {
  display: block;
  width: 145px;
  height: auto;
}

.brand-lockup--cta {
  width: 220px;
}

.brand-lockup--footer {
  width: 200px;
}

/* --- Mockup de celular em CSS puro ------------------------------------------------ */
.phone {
  position: relative;
  width: min(300px, 78vw);
  aspect-ratio: 9 / 19;
  margin-inline: auto;
  background-color: var(--surface);
  border: 3px solid var(--border);
  border-radius: 40px;
  padding: 10px;
}

/* Notch desenhado com pseudo-elemento */
.phone::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 38%;
  height: 22px;
  background-color: var(--background);
  border: 1px solid var(--border);
  border-radius: 999px;
  z-index: 2;
}

.phone__screen {
  width: 100%;
  height: 100%;
  border-radius: 30px;
  overflow: hidden;
  background-color: var(--background);
}

.phone__screen img,
.phone__screen svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Variante menor para o carrossel */
.phone--sm {
  width: min(240px, 70vw);
  border-radius: 32px;
  padding: 8px;
}

.phone--sm::before { height: 18px; top: 8px; }
.phone--sm .phone__screen { border-radius: 24px; }

/* --- Carrossel com scroll-snap (galeria de telas) ----------------------------------- */
.carousel {
  position: relative;
}

.carousel__track {
  display: flex;
  gap: var(--space-6);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: var(--space-4) var(--space-2) var(--space-6);
  /* Barra de rolagem discreta no tema */
  scrollbar-color: var(--border) transparent;
}

.carousel__item {
  scroll-snap-align: center;
  flex-shrink: 0;
  list-style: none;
  text-align: center;
}

.carousel__caption {
  display: block;
  margin-top: var(--space-3);
  font-size: var(--text-small);
  color: var(--cream-muted);
}

.carousel__nav {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.carousel__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--surface);
  border: 1px solid var(--border);
  color: var(--gold);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.carousel__btn:hover {
  border-color: var(--gold);
  color: var(--gold-soft);
}

.carousel__btn svg { width: 20px; height: 20px; }

/* --- Passos numerados ("Como funciona") ----------------------------------------------- */
.steps {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-6);
  counter-reset: step;
}

@media (min-width: 768px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
}

.steps__item {
  counter-increment: step;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}

/* Marcador dourado numerado */
.steps__item::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--gold);
  color: var(--background);
  font-weight: 800;
  font-size: var(--text-h5);
  margin-bottom: var(--space-4);
}

.steps__title {
  font-size: var(--text-h6);
  margin-bottom: var(--space-2);
}

.steps__text {
  color: var(--cream-muted);
  font-size: var(--text-small);
}

/* --- Planos ------------------------------------------------------------------------------ */
.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
}

/* Card Premium destacado com borda dourada */
.plan--featured {
  border-color: var(--gold);
  background-color: var(--surface-high);
}

.plan__badge {
  position: absolute;
  top: calc(-1 * var(--space-3));
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--gold);
  color: var(--background);
  font-size: var(--text-tiny);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-1) var(--space-4);
  border-radius: 999px;
  white-space: nowrap;
}

.plan__name { font-size: var(--text-h4); }

.plan__price {
  font-size: var(--text-h2);
  font-family: var(--font-display);
  color: var(--gold-soft);
  letter-spacing: 0.05em;
}

.plan__price small {
  font-family: var(--font-body);
  font-size: var(--text-small);
  color: var(--cream-muted);
  letter-spacing: normal;
  text-transform: none;
}

.plan__note {
  font-size: var(--text-tiny);
  color: var(--cream-muted);
}

.plan__features {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-3);
  flex-grow: 1;
}

.plan__features li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--text-small);
  color: var(--cream-muted);
}

.plan__features svg {
  width: 18px;
  height: 18px;
  color: var(--gold);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- FAQ (details/summary) ------------------------------------------------------------------ */
.faq {
  display: grid;
  gap: var(--space-3);
  max-width: 760px;
  margin-inline: auto;
}

.faq__item {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.faq__item[open] { border-color: var(--gold); }

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  font-weight: 700;
  list-style: none; /* remove o marcador padrão */
}

.faq__question::-webkit-details-marker { display: none; }

/* Seta que gira quando aberto */
.faq__question::after {
  content: '';
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq__item[open] .faq__question::after {
  transform: rotate(-135deg);
}

.faq__answer {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--cream-muted);
  font-size: var(--text-small);
}

/* --- Formulário de contato --------------------------------------------------------------------- */
.form {
  display: grid;
  gap: var(--space-5);
  max-width: 560px;
}

.form__field {
  display: grid;
  gap: var(--space-2);
}

.form__label {
  font-weight: 700;
  font-size: var(--text-small);
}

.form__input,
.form__textarea {
  width: 100%;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  color: var(--cream);
  transition: border-color var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--gold);
  outline: none;
}

.form__textarea {
  min-height: 160px;
  resize: vertical;
}

/* Mensagem de erro acessível (ligada por aria-describedby) */
.form__error {
  color: var(--danger);
  font-size: var(--text-tiny);
  min-height: 1em;
}

.form__field.has-error .form__input,
.form__field.has-error .form__textarea {
  border-color: var(--danger);
}

/* Caixa de status pós-envio */
.form__status {
  border-radius: var(--radius-sm);
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-small);
  border: 1px solid var(--gold);
  background-color: color-mix(in srgb, var(--gold) 10%, transparent);
  color: var(--cream);
}

.form__status[hidden] { display: none; }

/* --- Animações de entrada (reveal.js) ------------------------------------------------------------ */
/* Só anima quando o JS marca o elemento; sem JS tudo fica visível. */
.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 480ms ease, transform 480ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

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