/* ========================================== */
/* HERO SECTION COM ANIMAÇÃO DE BURACO NEGRO */
/* ========================================== */

.hero-section {
  position: relative;
  width: 100%;
  min-height: 500px;
  height: 80vh;
  overflow: hidden;
  background: linear-gradient(135deg, #2c1810 0%, #4a2c1a 50%, #2c1810 100%);
  box-shadow: #6941004f 10px 4px 10px 4px;
}

.hero-container {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ========================================== */
/* ANIMAÇÃO DE LETRAS (BURACO NEGRO) */
/* ========================================== */

.letters-animation {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.flying-letter {
  position: absolute;
  font-family: 'Merriweather', serif;
  font-size: 24px;
  font-weight: bold;
  color: #d4a574;
  text-shadow: 0 0 10px rgba(212, 165, 116, 0.5);
  pointer-events: none;
  will-change: transform, opacity;
  animation: flyToCenter var(--duration) ease-in forwards;
  contain: layout style;
}

@keyframes flyToCenter {
  0% {
    transform: translate(0, 0) scale(1);
    opacity: 1;
  }

  70% {
    opacity: 1;
  }

  100% {
    transform: translate(var(--dx), var(--dy)) scale(0.3) rotate(var(--rotation));
    opacity: 0;
  }
}

/* ========================================== */
/* LIVRO NO CENTRO (BURACO NEGRO) */
/* ========================================== */

.book-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulseGlow 3s ease-in-out infinite;
}

.book-emoji {
  font-size: 180px;
  filter: drop-shadow(0 0 30px rgba(212, 165, 116, 0.6));
  will-change: transform;
  animation: float 4s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px) rotate(-5deg);
  }

  50% {
    transform: translateY(-15px) rotate(5deg);
  }
}

@keyframes pulseGlow {

  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.8;
  }

  50% {
    transform: translate(-50%, -50%) scale(1.02);
    opacity: 1;
  }
}

/* ========================================== */
/* CONTEÚDO HERO (TEXTO + INPUT) */
/* ========================================== */

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  max-width: 800px;
  padding: 0 20px;
}

.hero-text {
  font-family: 'Merriweather', serif;
  font-size: 2.8rem;
  color: #d4a574;
  text-shadow: -6px 0px 5px rgba(105, 65, 0, 0.39);
  line-height: 1.3;
  margin: 0;
  /* animation removed, handled by JS */
  opacity: 1;
  /* Ensure visible container */
}

.hero-text>span {
  display: block;
  font-size: 2.5rem;
  margin-top: 10px;
}

/* Character animation styles */
.hero-text .hero-char {
  display: inline-block;
  opacity: 0;
  animation: formLetter 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  white-space: pre;
  will-change: transform, opacity;
  /* Preserve spaces */
}

@keyframes formLetter {
  0% {
    opacity: 0;
    transform: translateY(-20px) scale(1.5) rotate(-10deg);
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1) rotate(0deg);
  }
}

/* ========================================== */
/* INPUT DE PESQUISA FLUTUANTE */
/* ========================================== */

.hero-search {
  background: rgba(170, 109, 11, 0.4);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(212, 165, 116, 0.3);
  border-radius: 50px;
  padding: 18px 40px;
  width: 100%;
  position: relative;
  top: 100px;
  max-width: 600px;
  font-size: 1.1rem;
  font-family: 'Merriweather', serif;
  color: #d4a574;
  text-align: center;
  outline: none;
  transition: all 0.3s ease;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  animation: floatSearch 3s ease-in-out infinite;


}

.hero-search::placeholder {
  color: rgba(212, 165, 116, 0.6);
  font-style: italic;
}

.hero-search:focus {
  background: rgba(170, 109, 11, 0.6);
  border-color: #d4a574;
  box-shadow: 0 8px 32px rgba(212, 165, 116, 0.4);
  transform: translateY(-5px);
}

.hero-search:hover {
  border-color: rgba(212, 165, 116, 0.5);
}

@keyframes floatSearch {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-8px);
  }
}



/* ========================================== */
/* ANIMAÇÃO DE ONDA (PÓS-ENTRADA) */
/* ========================================== */

.hero-text.wave-active .hero-char {
  animation: waveLetter 3s ease-in-out infinite;
  animation-delay: calc(var(--char-index) * 0.1s);
  opacity: 1;
  will-change: transform;
  /* Garante que fique visível */
  transform: translateY(0);
  /* Reseta transformações anteriores */
}

@keyframes waveLetter {

  0%,
  100% {
    transform: translateY(0);
  }

  25% {
    transform: translateY(-8px);
  }

  50% {
    transform: translateY(0);
  }
}