.slideshow-manual{
  position: relative;
  max-width: 720px;
  height: 480px;
  margin: 60px auto;
  border-radius: 18px;
  overflow: hidden;
  background: #0b0b0b;
  box-shadow: 0 20px 50px rgba(0,0,0,.75);
}

.slides img{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity .6s ease;
}

.slides img.active{
  opacity: 1;
}

/* BOTÕES */
.nav{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(212,175,55,.55);
  background: rgba(15,15,15,.8);
  color: #d4af37;
  font-size: 22px;
  cursor: pointer;
  backdrop-filter: blur(4px);
}

.nav:hover{
  background: rgba(212,175,55,.15);
}

.prev{ left: 16px; }
.next{ right: 16px; }

@media(min-width:1200px){
    .slideshow-manual{
        max-width: 720px;
        height: 600px;
    }
}