@import url(https://fonts.googleapis.com/css?family=Dancing+Script:400,700);

body, html {
  height: 100%;
}

body {
  margin: 0;
  padding: 2rem;
  background-color: #446072;
  font-family: monospace;
  color: white;
  overflow-x: hidden;
  overflow-y: auto;

}
h1 {
  margin-top: 2rem;
  text-align: center;
  font-size: 3rem;
}
h1 + p {
  text-align: center;
}
.container {
  display: flex;
  justify-content: center;
  align-items: center;
}
a {
  text-decoration: none;
  font-family: "Dancing Script";
  color: #fff;
}
p{
  text-transform: uppercase;
  font-size: 1.5rem;
}

.shelf {
  position: relative;
  width: 60%;
  height: 24rem;
  margin: 30px auto;
  border: 0.5rem solid #374d5b;
  border-radius: 0.5rem;
  background-color: rgba(255, 255, 255, 0.1);
  perspective: 130rem;
  box-shadow: inset 0 0 2rem rgba(0, 0, 0, 0.2);

  /* GRID AUTOMÁTICO */
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(3.5rem, 1fr));
  grid-template-rows: 1fr 1fr; /* prateleira + base */
  align-content: stretch;

  gap: 3rem 0.8rem;
  padding: 2.5rem 0.5rem 0; /* mais espaço em cima que embaixo */
}
.shelf::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;

  background:
    linear-gradient(
      to bottom,

      /* área superior */
      transparent 0%,
      transparent 48%,

      /* prateleira única */
      rgba(0, 0, 0, 0.35) 48.4%,
      rgba(0, 0, 0, 0.35) 49%,
      transparent 49.6%,

      /* parte inferior (base) */
      transparent 100%
    );
}


.door {
  position: absolute;
  width: 49.9%;
  height: 27rem;
  display: flex;
  box-sizing: border-box;
  padding: 1rem;
  background-color: #374d5b;
  align-items: center;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.3);
  outline: 1px solid transparent;
  
  position: absolute;
  top: 0;


}
.door::before {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.1);
    content: "";
  }
.door.left {
    border-radius: 0 0.75rem 0.75rem 0;
    justify-content: flex-end;
    -webkit-animation: 
      leftDoorOpen 3.5s ease-out forwards 1s,
      leftDoorFlap 15s linear infinite forwards 9s;
            animation: 
      leftDoorOpen 3.5s ease-out forwards 1s,
      leftDoorFlap 15s linear infinite forwards 9s;
    transform-origin: 0 0 0;
  }
.door.right {
    right: 0;
    border-radius: 0.75rem 0 0 0.75rem;
    -webkit-animation: 
      rightDoorOpen 3s ease-out forwards 1.5s,
      rightDoorFlap 10s linear infinite forwards 8s;
            animation: 
      rightDoorOpen 3s ease-out forwards 1.5s,
      rightDoorFlap 10s linear infinite forwards 8s;
    transform-origin: 100% 0 0;
  }
.book {
  width: 55px;
  height: 150px;
  box-sizing: border-box;
  padding: 20px 20px;
  border-radius: 0.25rem;
  border: none;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1rem;
  cursor: pointer;
  box-shadow: inset 0 0 0.75rem rgba(255, 255, 255, 0.1);
  -webkit-tap-highlight-color: transparent; 
  position: relative;
  transform: none !important;
  writing-mode: vertical-rl;
  justify-self: center;
  align-self: center; /* encosta na prateleira */


}
.book::before {
  content: "";
  position: absolute;
  top: 3px;
  right: 2px;
  width: 4px;
  height: calc(100% - 6px);

  background:
    linear-gradient(
      to bottom,
      #f5f5f58b,
      #e2e2e27f,
      #f5f5f54e
    );

  border-radius: 1px;
  opacity: 0.85;
}

.book.home-page {
    transform: rotate(-90deg) translate(-12.4rem, 3rem);
    transform-origin: 0;
  }
.book.about-us {
   
  }
.book.contact {
   
  }
.book.faq {
    
  }
.book.not-found {   
    border: 1px dashed rgba(255, 255, 255, 0.3);
    background-color: transparent;
    cursor: pointer;   
    

  }
.book.not-found::after {
      font-family: "Dancing Script";
      text-transform: lowercase;
      content: "Espaço Livre";
      opacity: 0.3; 
    }
  
  
  /* Tooltip */
.book[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%) scale(0.95);
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  padding: 0.4rem 0.6rem;
  border-radius: 0.4rem;
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 10;
}

.book:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 3px;
}

/* Desktop hover */
@media (hover: hover) {
  .book:hover::after {
    opacity: 1;
   
  }
}

/* Mobile ativo */
.book.tooltip-active::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
} 

  
@-webkit-keyframes leftDoorOpen {
  60% {transform: rotateY(-115deg)}
  100% {transform: rotateY(-110deg)}
}
@keyframes leftDoorOpen {
  60% {transform: rotateY(-115deg)}
  100% {transform: rotateY(-110deg)}
}
@-webkit-keyframes rightDoorOpen {
  60% {transform: rotateY(125deg)}
  100% {transform: rotateY(120deg)}
}
@keyframes rightDoorOpen {
  60% {transform: rotateY(125deg)}
  100% {transform: rotateY(120deg)}
}
@-webkit-keyframes rightDoorFlap {
  0% { transform: rotateY(120deg)}
  5% {transform: rotateY(125deg)}
  15% {transform: rotateY(117deg)}
  25% {transform: rotateY(123deg)}
  30% {transform: rotateY(120deg)}
  100% {transform: rotateY(120deg)}
}
@keyframes rightDoorFlap {
  0% { transform: rotateY(120deg)}
  5% {transform: rotateY(125deg)}
  15% {transform: rotateY(117deg)}
  25% {transform: rotateY(123deg)}
  30% {transform: rotateY(120deg)}
  100% {transform: rotateY(120deg)}
}
@-webkit-keyframes leftDoorFlap {
  0% { transform: rotateY(-110deg)}
  5% {transform: rotateY(-115deg)}
  15% {transform: rotateY(-107deg)}
  25% {transform: rotateY(-113deg)}
  30% {transform: rotateY(-110deg)}
  100% {transform: rotateY(-110deg)}
}
@keyframes leftDoorFlap {
  0% { transform: rotateY(-110deg)}
  5% {transform: rotateY(-115deg)}
  15% {transform: rotateY(-107deg)}
  25% {transform: rotateY(-113deg)}
  30% {transform: rotateY(-110deg)}
  100% {transform: rotateY(-110deg)}
}
@-webkit-keyframes bookFadeOut {
  50% {border: 1px dashed rgba(255, 255, 255, 0.1);}
}
@keyframes bookFadeOut {
  50% {border: 1px dashed rgba(255, 255, 255, 0.1);}
}


@media (max-width: 1024px) {
  .shelf {
    transform: scale(0.9);
  }
}

@media (max-width: 768px) {
  body {
    padding: 1rem;
    overflow-x: hidden;
  }

  h1 {
    font-size: 1.5rem;
  }

  .shelf {
    width: 90vw;
    height: auto;
    aspect-ratio: 30 / 14;
    transform: scale(0.8);
  }

  .door {
    width: 50%;
    height: 100%;
  }

  .book {
    font-size: 0.8rem;
    letter-spacing: 0.05rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.2rem;
  }

  h1 + p {
    font-size: 0.9rem;
  }

  .shelf {
    transform: scale(0.65);
  }

  .book.not-found::after {
    font-size: 18px;
    background-size: 3rem;
  }
}

@media (hover: none) and (pointer: coarse) {

  .book {
    padding: 1.2rem 4.5rem 1.2rem 2.5rem;
    min-height: 48px; /* padrão de acessibilidade */
    touch-action: manipulation;
  }

  .book::before {
    content: "";
    position: absolute;
    inset: -12px;
  }

  .book:hover {
    background-color: rgba(255, 255, 255, 0.25);
  }
}