/* ========================================
   ANIMAÇÕES - SCROLL REVEAL & INTERAÇÕES
   Mobile-First & Performance Otimizada
   ======================================== */

/* ========================================
   SCROLL REVEAL - ESTADOS
   Progressive Enhancement: só anima se JS carregar
   ======================================== */

/* Só aplica animações se JavaScript estiver habilitado */
html.js-enabled [data-scroll-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

html.js-enabled [data-scroll-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Variações de Animação */

html.js-enabled [data-scroll-reveal="fade"] {
  opacity: 0;
  transform: none;
}

html.js-enabled [data-scroll-reveal="fade"].is-visible {
  opacity: 1;
}

html.js-enabled [data-scroll-reveal="slide-left"] {
  opacity: 0;
  transform: translateX(-30px);
}

html.js-enabled [data-scroll-reveal="slide-left"].is-visible {
  opacity: 1;
  transform: translateX(0);
}

html.js-enabled [data-scroll-reveal="slide-right"] {
  opacity: 0;
  transform: translateX(30px);
}

html.js-enabled [data-scroll-reveal="slide-right"].is-visible {
  opacity: 1;
  transform: translateX(0);
}

html.js-enabled [data-scroll-reveal="scale"] {
  opacity: 0;
  transform: scale(0.95);
}

html.js-enabled [data-scroll-reveal="scale"].is-visible {
  opacity: 1;
  transform: scale(1);
}

/* ========================================
   ANIMAÇÕES DE ENTRADA (HERO)
   ======================================== */

html.js-enabled .hero-titulo,
html.js-enabled .hero-subtitulo,
html.js-enabled .hero-cta {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
}

html.js-enabled .hero-titulo {
  animation-delay: 0.1s;
}

html.js-enabled .hero-subtitulo {
  animation-delay: 0.3s;
}

html.js-enabled .hero-cta {
  animation-delay: 0.5s;
}

html.js-enabled .ebook-capa {
  animation: fadeInScale 1s cubic-bezier(0.16, 1, 0.3, 1) 0.4s forwards;
  opacity: 0;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: perspective(1000px) rotateY(-5deg) scale(0.95);
  }
  to {
    opacity: 1;
    transform: perspective(1000px) rotateY(-5deg) scale(1);
  }
}

/* ========================================
   ANIMAÇÕES DE HOVER - MICRO-INTERAÇÕES
   ======================================== */

/* Cards de Professor */
.professor-card {
  position: relative;
}

.professor-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(221, 188, 101, 0.1) 0%, transparent 100%);
  border-radius: 12px;
  opacity: 0;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.professor-card:hover::before {
  opacity: 1;
}

/* Efeito de Brilho nos Botões */
.hero-cta,
.ebook-botao-cta,
.oferta-botao-cta {
  position: relative;
  overflow: hidden;
}

.hero-cta::before,
.ebook-botao-cta::before,
.oferta-botao-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-cta:hover::before,
.ebook-botao-cta:hover::before,
.oferta-botao-cta:hover::before {
  left: 100%;
}

/* ========================================
   LOADING STATE
   ======================================== */

body:not(.js-loaded) [data-scroll-reveal] {
  opacity: 0;
}

body.js-loaded [data-scroll-reveal] {
  /* Aguarda Intersection Observer */
}

/* ========================================
   PERFORMANCE - GPU ACCELERATION
   ======================================== */

[data-scroll-reveal],
.professor-card,
.bullet-dourado,
.icone-pagamento,
.hero-cta,
.ebook-botao-cta,
.oferta-botao-cta {
  transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ========================================
   ACESSIBILIDADE - MOTION REDUCED
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-scroll-reveal] {
    opacity: 1;
    transform: none;
  }

  .hero-titulo,
  .hero-subtitulo,
  .hero-cta,
  .ebook-capa {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* ========================================
   ANIMAÇÕES PARA NÚMEROS (CONTADORES)
   ======================================== */

[data-counter] {
  font-variant-numeric: tabular-nums;
  transition: color 0.3s ease;
}

[data-counter].counting {
  color: var(--cor-dourado-brilho);
}

/* ========================================
   PULSE ANIMATION - DESTAQUES
   ======================================== */

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
}

.pulse-effect {
  animation: pulse 2s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

/* ========================================
   SHIMMER EFFECT - LOADING
   ======================================== */

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.shimmer {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
}

/* ========================================
   TRANSIÇÕES SUAVES GLOBAIS
   ======================================== */

.smooth-transition {
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ========================================
   MOBILE - OTIMIZAÇÕES
   ======================================== */

@media (max-width: 767px) {
  /* Reduz complexidade de animações em mobile */
  [data-scroll-reveal] {
    transform: translateY(20px);
  }

  .hero-titulo,
  .hero-subtitulo,
  .hero-cta {
    animation-duration: 0.6s;
  }
}