body {
  margin: 0;
}

html {
  overflow: hidden scroll;
}

#loading-bg {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--initial-loader-bg, #fff);
  z-index: 9999;
  overflow: hidden;
  animation: fade-in 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

#loading-bg::before {
  content: '';
  position: absolute;
  inset: -50%;
  background: radial-gradient(
    circle at center,
    var(--initial-loader-color, #157bbf) 0%,
    transparent 70%
  );
  opacity: 0.035;
  animation: rotate-bg 20s linear infinite;
}

.loading-logo {
  position: relative;
  width: 190px;
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.loading-logo svg {
  width: 160px;
  height: 160px;
  overflow: visible;
}

.loader-wing {
  transform-box: view-box;
  transform-origin: 126px 119px;
  filter: url(#loader-wing-shadow);
  will-change: transform;
}

.loader-wing-a {
  animation: loader-flap-a 1.15s cubic-bezier(.45, .05, .55, .95) infinite;
}

.loader-wing-b {
  animation: loader-flap-b 1.15s cubic-bezier(.45, .05, .55, .95) infinite;
}

.loader-hinge {
  transform-box: fill-box;
  transform-origin: center;
  animation: loader-hinge-pulse 1.15s ease-in-out infinite;
}

@keyframes loader-flap-a {
  0%, 100% { transform: rotate(-1deg) translate(-1px, -1px) scale(1); }
  50% { transform: rotate(-10deg) translate(-7px, -4px) scale(.96, 1.025); }
}

@keyframes loader-flap-b {
  0%, 100% { transform: rotate(1deg) translate(1px, 1px) scale(1); }
  50% { transform: rotate(10deg) translate(7px, 4px) scale(.96, 1.025); }
}

@keyframes loader-hinge-pulse {
  0%, 100% { opacity: .18; transform: scale(.7); }
  50% { opacity: .48; transform: scale(1.15); }
}

@keyframes rotate-bg {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: scale(.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@media (max-width: 768px) {
  .loading-logo {
    width: 150px;
    height: 150px;
  }

  .loading-logo svg {
    width: 125px;
    height: 125px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .loader-wing-a,
  .loader-wing-b,
  .loader-hinge,
  #loading-bg,
  #loading-bg::before {
    animation: none;
  }
}