* {
  margin: 0;
  padding: 0;
}

:root {
  --font-family: "Nunito";

  --start-color: #FC466B;
  --end-color: #3F5EFB;

  --start-color-stop-percent: 75%;
  --end-color-stop-percent: 25%;

}

body {
  background: var(--end-color);
  /* fallback for old browsers */
  background: -webkit-linear-gradient(to left top,
      var(--end-color) var(--end-color-stop-percent),
      var(--start-color) var(--start-color-stop-percent));
  /* Chrome 10-25, Safari 5.1-6 */
  background: linear-gradient(to left top,
      var(--end-color) var(--end-color-stop-percent),
      var(--start-color) var(--start-color-stop-percent));
  /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */

  font-family: var(--font-family);
  height: 100vh;
  /* Fallback for browsers that do not support Custom Properties */
  height: calc(var(--vh, 1vh) * 100);
  width: 100vw;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

main {
  display: flex;
  justify-content: space-evenly;
  flex-direction: column;
}

main header {
  flex-basis: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

main h1 {
  text-align: center;
  color: white;
  font-size: 4vw;
}

#bottom-section {
  flex-basis: 50%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.slider {
  width: 30vw;
  height: 5px;
  overflow-x: hidden;
  align-self: center;
  position: relative;
  margin-top: 10vh;
}

.line {
  opacity: 0.24;
  background: white;
  width: 150%;
  height: 5px;
}

.subline {
  background: white;
  width: 100%;
  height: 5px;
  position: absolute;
  top: 0;
}

.inc {
  animation: increase 2s infinite;
}

.dec {
  animation: decrease 2s 0.5s infinite;
}

footer {
  padding-bottom: 16px;
}

footer p {
  color: white;
  font-size: 2.5vw;
  text-align: center;
  padding: 0 16px;
  opacity: 0.5;
}

footer p:first-child {
  padding: 0 16px 4px 16px;
}

footer a {
  text-decoration-color: white;
  color: white;
}

@media (min-width: 768px) {
  main h1 {
    font-size: 3vw;
  }

  footer p {
    font-size: 1vw;
  }
}

@keyframes increase {
  from {
    transform: translateX(-5%) scaleX(0.05);
  }

  to {
    transform: translateX(130%) scaleX(1);
  }
}

@keyframes decrease {
  from {
    transform: translateX(-80%) scaleX(0.8);
  }

  to {
    transform: translateX(110%) scaleX(0.1);
  }
}