.loading-screen {
  position: fixed;
  inset: 0;
  
  z-index: 99;
  transition: opacity 1.2s ease-in-out;
  opacity: 1;
}
#portfolio-content {
  opacity: 0;
  max-width: 100%;
  transition: opacity 1.2s ease, transform 1.2s ease;
}
#portfolio-content.show {
  opacity: 1;
  
}


.loader {
  width: 0;
  height: 4.8px;
  display: inline-block;
  position: absolute;
  align-self: flex-start;
  bottom: 0px;
  left: 0;
  background: #fff;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
  box-sizing: border-box;
  animation: animFw 5.8s linear forwards;
}


.loader::after,
.loader::before {
  content: '';
  width: 10px;
  height: 1px;
  background: #FFF;
  position: absolute;
  top: 9px;
  right: -2px;
  opacity: 0;
  transform: rotate(-45deg) translateX(0px);
  box-sizing: border-box;
  animation: coli1 0.3s linear infinite;
}
.loader::before {
  top: -4px;
  transform: rotate(45deg);
  animation: coli2 0.3s linear infinite;
}

@keyframes animFw {
  0% { width: 0; }
  100% { width: 100%; }
}

@keyframes coli1 {
  0% {
    transform: rotate(-45deg) translateX(0px);
    opacity: 0.7;
  }
  100% {
    transform: rotate(-45deg) translateX(-45px);
    opacity: 0;
  }
}

@keyframes coli2 {
  0% {
    transform: rotate(45deg) translateX(0px);
    opacity: 1;
  }
  100% {
    transform: rotate(45deg) translateX(-45px);
    opacity: 0.7;
  }
}


.btn-wrapper {
  display: flex;
  justify-content: center;
  width: 100%;              
  }

.btn {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 16rem;
  height: 4rem;
  background-size: 300% 300%;
  backdrop-filter: blur(1rem);
  border-radius: 5rem;
  margin-top: 20px;
  transition: 0.5s;
  animation: gradient_301 5s ease infinite;
  border: double 4px transparent;
  background-image: linear-gradient(#212121, #212121),  linear-gradient(137.48deg, #ffdb3b 10%,#FE53BB 45%, #8F51EA 67%, #0044ff 87%);
  background-origin: border-box;
  background-clip: content-box, border-box;
}

#container-stars {
  position: fixed;
  z-index: -1;
  width: 100%;
  height: 100%;
  overflow: hidden;
  transition: 0.5s;
  backdrop-filter: blur(1rem);
  border-radius: 5rem;
}

strong {
  z-index: 2;
  font-family: 'Avalors Personal Use';
  font-size: 12px;
  letter-spacing: 5px;
  color: #FFFFFF;
  text-shadow: 0 0 4px white;
}

#glow {
  position: absolute;
  display: flex;
  width: 12rem;
}

.circle {
  width: 100%;
  height: 30px;
  filter: blur(2rem);
  animation: pulse_3011 4s infinite;
  z-index: -1;
}

.circle:nth-of-type(1) {
  background: rgba(254, 83, 186, 0.636);
}

.circle:nth-of-type(2) {
  background: rgba(142, 81, 234, 0.704);
}

.btn:hover #container-stars {
  z-index: 1;
  background-color: #212121;
}

.btn:hover {
  transform: scale(1.1)
}

.btn:active {
  border: double 4px #FE53BB;
  background-origin: border-box;
  background-clip: content-box, border-box;
  animation: none;
}

.btn:active .circle {
  background: #FE53BB;
}

#stars {
  position: relative;
  background: transparent;
  width: 200rem;
  height: 200rem;
}

#stars::after {
  content: "";
  position: absolute;
  top: -10rem;
  left: -100rem;
  width: 100%;
  height: 100%;
  animation: animStarRotate 90s linear infinite;
}

#stars::after {
  background-image: radial-gradient(#ffffff 1px, transparent 1%);
  background-size: 50px 50px;
}

#stars::before {
  content: "";
  position: absolute;
  top: 0;
  left: -50%;
  width: 170%;
  height: 500%;
  animation: animStar 60s linear infinite;
}

#stars::before {
  background-image: radial-gradient(#ffffff 1px, transparent 1%);
  background-size: 50px 50px;
  opacity: 0.5;
}

@keyframes animStar {
  from {
    transform: translateY(0);
  }

  to {
    transform: translateY(-135rem);
  }
}

@keyframes animStarRotate {
  from {
    transform: rotate(360deg);
  }

  to {
    transform: rotate(0);
  }
}

@keyframes gradient_301 {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

@keyframes pulse_3011 {
  0% {
    transform: scale(0.75);
    box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.7);
  }

  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(0, 0, 0, 0);
  }

  100% {
    transform: scale(0.75);
    box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
  }
}