.preloader {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background-color: #0b0b0e;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.brand-loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  animation: viLoaderPulse 2s infinite ease-in-out;
  will-change: transform, filter;
}

.vi-energy-stage {
  position: relative;
  width: 96px;
  overflow: hidden;
  isolation: isolate;
}

.vi-loader-logo {
  display: block;
  width: 100%;
  height: auto;
  fill: rgba(255, 255, 255, 0.42);
  filter: drop-shadow(0 0 3px rgba(255, 255, 255, 0.12));
}

.vi-energy-sweep {
  position: absolute;
  z-index: 2;
  top: -65%;
  left: -10%;
  width: 120%;
  height: 48%;
  pointer-events: none;
  opacity: 0;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.16) 18%,
    rgba(255, 255, 255, 0.72) 42%,
    rgba(255, 255, 255, 1) 50%,
    rgba(255, 255, 255, 0.72) 58%,
    rgba(255, 255, 255, 0.16) 82%,
    rgba(255, 255, 255, 0) 100%
  );
  mix-blend-mode: screen;
  filter: blur(4px) drop-shadow(0 0 10px rgba(255, 255, 255, 0.95));
  transform: translate3d(0, -140%, 0);
  animation: viEnergySweep 1.8s infinite linear;
  will-change: transform, opacity;
}

.agora-loader-text {
  margin-top: 4px;
  font-family: "Arial Black", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 4px;
  text-indent: 4px;
  text-transform: uppercase;
  color: #ffffff;
  transform: translateX(15px);
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

@keyframes viLoaderPulse {
  0%,
  100% {
    transform: scale(1);
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.14));
  }

  50% {
    transform: scale(1.015);
    filter: drop-shadow(0 0 18px rgba(255, 255, 255, 0.28));
  }
}

@keyframes viEnergySweep {
  0% {
    opacity: 0;
    transform: translate3d(0, -140%, 0);
  }

  10% {
    opacity: 1;
  }

  85% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translate3d(0, 360%, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .brand-loader,
  .vi-energy-sweep {
    animation: none;
  }

  .vi-loader-logo {
    fill: #ffffff;
  }

  .vi-energy-sweep {
    display: none;
  }

  .preloader {
    transition-duration: 0.01ms;
  }
}