.page-login {
  padding: 0 !important;
}

.vk-bg {
  background: url('../img/bg.jpg');
  background-size: cover;
  background-position: top;
  background-repeat: no-repeat;
}

.perspective {
  perspective: 1000px;
}

.transform-style-preserve-3d {
  transform-style: preserve-3d;
}

.backface-hidden {
  backface-visibility: hidden;
}

.rotate-y-180 {
  transform: rotateY(180deg);
}

.flip {
  transform: rotateY(180deg);
}

.animate-slide-left {
  animation: slideLeft 0.3s ease-in-out forwards;
}

.animate-slide-down {
  animation: slideDown 0.3s ease-in-out forwards;
}

@keyframes slideLeft {
  from {
    transform: translate3d(-20px, 0, 0);
    opacity: 0;
  }
  to {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
}

@keyframes slideDown {
  from {
    transform: translate3d(0, -20px, 0);
    opacity: 0;
  }
  to {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
}

@keyframes cardEntrance {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.animate-card {
  animation: cardEntrance 0.6s ease forwards;
}

.glow {
  background: radial-gradient(
    circle at center,
    rgba(255, 255, 255, 0.25),
    transparent 60%
  );
}

/* Loader Animation */
.vk-loader {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 800px; /* cria profundidade */
}

/* rotação contínua */
.vk-logo {
  animation: flipDiagonal 1s linear infinite;
  transform-style: preserve-3d;
  will-change: transform;
}

@keyframes flipDiagonal {
  0% {
    transform: rotateX(0deg) rotateY(0deg);
  }

  100% {
    transform: rotateX(0deg) rotateY(360deg);
  }
}