/* ═══════════════════════════════════════
   ANIMAÇÕES + POLISH — KonvertAI
   Etapa 5: smooth reveals, stagger, hover effects
═══════════════════════════════════════ */

/* ── Reveal com stagger (delay incremental) ── */
.r { transition-delay: 0ms; }
.r:nth-child(2) { transition-delay: 80ms; }
.r:nth-child(3) { transition-delay: 160ms; }
.r:nth-child(4) { transition-delay: 240ms; }
.r:nth-child(5) { transition-delay: 320ms; }
.r:nth-child(6) { transition-delay: 400ms; }
.r:nth-child(7) { transition-delay: 480ms; }

/* ── Reveal variantes ── */
.r-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.r-up.v {
  opacity: 1;
  transform: none;
}

.r-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.r-scale.v {
  opacity: 1;
  transform: none;
}

/* ── Nav smooth hide/show on scroll ── */
#nav {
  transition: transform 0.3s var(--ease), box-shadow var(--t-base);
}

#nav.hidden {
  transform: translateY(-100%);
}

/* ── Glow pulsante sutil nos CTAs ── */
@keyframes glow-pulse {
  0%, 100% { box-shadow: var(--s-brand); }
  50% { box-shadow: var(--s-brand-l); }
}

.btn-brand {
  animation: glow-pulse 4s ease-in-out infinite;
}

.btn-brand:hover {
  animation: none;
}

/* ── Counter animation (para métricas) ── */
.metrica-valor {
  transition: transform 0.3s var(--ease);
}

.metrica:hover .metrica-valor {
  transform: scale(1.05);
}

/* ── Smooth transitions nos cards ── */
.fcard,
.scard,
.plano-card {
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}

/* ── Brilho nos cards hover ── */
.plano-card.popular:hover {
  box-shadow: 0 0 80px rgba(91, 33, 182, 0.2), var(--s-glow);
}

/* ── Step hover glow ── */
.step-num {
  transition: all 0.3s var(--ease);
}

/* ── FAQ smooth open ── */
.faq-body {
  animation: faq-open 0.3s ease;
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ── Mobile touch feedback ── */
@media (hover: none) {
  .btn:active {
    transform: scale(0.95);
    transition-duration: 0.1s;
  }

  .fcard:active,
  .scard:active {
    background: var(--c-bg3);
  }
}

/* ── Scrollbar styling ── */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--c-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--c-bg3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(91, 33, 182, 0.4);
}

/* ── Selection color ── */
::selection {
  background: rgba(91, 33, 182, 0.3);
  color: var(--c-text-1);
}

/* ── Loading state (remove flash of unstyled content) ── */
html {
  scroll-padding-top: 80px;
}