/* ============================================================
   ANIMATIONS.CSS — Micro-animacoes, entrada scroll, loading
   Todas entre 150–300ms conforme UI/UX Pro Max
   prefers-reduced-motion respeitado
   ============================================================ */

/* ── Fade In (entrada suave ao scroll) ───────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 300ms ease-out,
    transform 300ms ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delay em cascata para grupos de cards */
.fade-in:nth-child(1) { transition-delay: 0ms; }
.fade-in:nth-child(2) { transition-delay: 80ms; }
.fade-in:nth-child(3) { transition-delay: 160ms; }
.fade-in:nth-child(4) { transition-delay: 240ms; }
.fade-in:nth-child(5) { transition-delay: 320ms; }
.fade-in:nth-child(6) { transition-delay: 400ms; }

/* ── Fade In Left / Right ─────────────────────────────────────── */
.fade-in-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 300ms ease-out, transform 300ms ease-out;
}

.fade-in-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 300ms ease-out, transform 300ms ease-out;
}

.fade-in-left.visible,
.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ── Scale In (boa para cards de stats) ──────────────────────── */
.scale-in {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 250ms ease-out, transform 250ms ease-out;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* ── Pulse (botao CTA para chamar atencao) ───────────────────── */
@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 8px 32px rgba(230, 126, 34, 0.35);
  }
  50% {
    box-shadow: 0 8px 48px rgba(230, 126, 34, 0.65);
  }
}

.btn-pulse {
  animation: pulse-glow 2s ease-in-out infinite;
}

/* ── WhatsApp Float bounce ─────────────────────────────────────── */
@keyframes float-bounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

.whatsapp-float {
  animation: float-bounce 3s ease-in-out infinite;
}

/* ── Shimmer (skeleton loading) ─────────────────────────────── */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.skeleton {
  background: linear-gradient(90deg,
    var(--color-surface-alt) 25%,
    var(--color-border)      50%,
    var(--color-surface-alt) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ── Progresso da barra do formulario ────────────────────────── */
@keyframes progress-fill {
  from { width: 0%; }
  to   { width: var(--progress-target, 100%); }
}

.progress-bar {
  height: 4px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-full);
  transition: width 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Spinner de carregamento ─────────────────────────────────── */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: var(--radius-full);
  animation: spin 0.7s linear infinite;
}

/* ── Accordion (FAQ) ─────────────────────────────────────────── */
.accordion-content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 300ms cubic-bezier(0.4, 0, 0.2, 1),
              padding     300ms ease;
}

.accordion-content.open {
  max-height: 1000px; /* Aumentado para respostas longas */
}

/* FAQ - respostas longas em mobile */
@media (max-width: 767px) {
  .accordion-content.open {
    max-height: 2000px; /* Extra espaco para telas pequenas */
  }
}

.accordion-icon {
  transition: transform 250ms ease-out;
  flex-shrink: 0;
}

.accordion-item.open .accordion-icon {
  transform: rotate(180deg);
}

/* ── Step Transition (formulario multi-step) ─────────────────── */
.form-step {
  display: none;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 250ms ease-out, transform 250ms ease-out;
}

.form-step.active {
  display: block;
  opacity: 1;
  transform: translateX(0);
}

.form-step.exit-left {
  opacity: 0;
  transform: translateX(-20px);
}

/* ── Lightbox ────────────────────────────────────────────────── */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms ease-out;
}

.lightbox-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox-content {
  transform: scale(0.92);
  transition: transform 250ms ease-out;
  max-width: min(90vw, 1000px);
  max-height: 90vh;
}

.lightbox-overlay.open .lightbox-content {
  transform: scale(1);
}

/* ── prefers-reduced-motion: desabilitar animacoes nao essenciais ─── */
@media (prefers-reduced-motion: reduce) {
  /* Manter transicoes essenciais para UX */
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  /* Manter transicoes de cor e focus para acessibilidade */
  .btn,
  .btn-primary,
  .btn-secondary,
  .btn-whatsapp,
  .radio-card__label,
  .form-field__input,
  .accordion-trigger {
    transition-duration: 150ms !important;
    transition-property: color, background-color, border-color !important;
  }

  .fade-in,
  .fade-in-left,
  .fade-in-right,
  .scale-in {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn-pulse {
    animation: none;
    box-shadow: var(--shadow-cta);
  }

  .whatsapp-floating,
  .whatsapp-float {
    animation: none;
  }
}