$bg: #edf2f0;

$neu-1: #ecf0f3;
$neu-2: #d1d9e6;

$white: #f9f9f9;
$gray: #a0a5a8;
$black: #181818;

$purple: #4b70e2;

$transition: 1.25s;

*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  user-select: none;
}
/* Generic */
body {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  background-color: $neu-1;
  color: $gray;
}
/**/
.main {
  position: relative;
  width: 1000px;
  min-width: 1000px;
  min-height: 600px;
  height: 600px;
  padding: 25px;
  background-color: $neu-1;
  box-shadow:
          10px 10px 10px $neu-2,
          -10px -10px 10px $white;
  border-radius: 12px;
  overflow: hidden;
  @media (max-width: 1200px) {
    transform: scale(0.7);
  }
  @media (max-width: 1000px) {
    transform: scale(0.6);
  }
  @media (max-width: 800px) {
    transform: scale(0.5);
  }
  @media (max-width: 600px) {
    transform: scale(0.4);
  }
}
.container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;

  top: 0;
  width: 600px;
  height: 100%;
  padding: 25px;

  background-color: $neu-1;
  transition: $transition;
}
.form {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  width: 100%;
  height: 100%;

  &__icon {
    object-fit: contain;
    width: 30px;
    margin: 0 5px;
    opacity: 0.5;
    transition: 0.15s;

    &:hover {
      opacity: 1;
      transition: 0.15s;
      cursor: pointer;
    }
  }
  &__input {
    width: 350px;
    height: 40px;
    margin: 4px 0;

    padding-left: 25px;
    font-size: 13px;
    letter-spacing: 0.15px;
    border: none;
    outline: none;

    font-family: 'Montserrat', sans-serif;
    background-color: $neu-1;
    transition: 0.25s ease;
    border-radius: 8px;

    box-shadow:
            inset 2px 2px 4px $neu-2,
            inset -2px -2px 4px $white;

    &:focus {
      box-shadow:
              inset 4px 4px 4px $neu-2,
              inset -4px -4px 4px $white;
    }
  }
  &__span {
    margin-top: 30px;
    margin-bottom: 12px;
  }
  &__link {
    color: $black;
    font-size: 15px;
    margin-top: 25px;
    border-bottom: 1px solid $gray;
    line-height: 2;
  }
}
.title {
  font-size: 34px;
  font-weight: 700;
  line-height: 3;
  color: $black;
}
.description {
  font-size: 14px;
  letter-spacing: 0.25px;
  text-align: center;
  line-height: 1.6;
}
.button {
  width: 180px;
  height: 50px;
  border-radius: 25px;
  margin-top: 50px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1.15px;

  background-color: $purple;
  color: $white;
  box-shadow:
          8px 8px 16px $neu-2,
          -8px -8px 16px $white;

  border: none;
  outline: none;
}
/**/

.a-container {
  z-index: 100;
  left: calc(100% - 600px);
}
.b-container {
  left: calc(100% - 600px);
  z-index: 0;
}

.switch {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 400px;

  padding: 50px;
  z-index: 200;
  transition: $transition;

  background-color: $neu-1;
  overflow: hidden;

  box-shadow:
          4px 4px 10px $neu-2,
          -4px -4px 10px $white;

  &__circle {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background-color: $neu-1;
    box-shadow:
            inset 8px 8px 12px $neu-2,
            inset -8px -8px 12px $white;

    bottom: -60%;
    left: -60%;
    transition: $transition;

    &--t {
      top: -30%;
      left: 60%;
      width: 300px;
      height: 300px;
    }
  }

  &__container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    position: absolute;
    width: 400px;
    padding: 50px 55px;

    transition: $transition;
  }

  &__button {
    cursor: pointer;
    &:hover {
      box-shadow:
              6px 6px 10px $neu-2,
              -6px -6px 10px $white;
      transform: scale(0.985);
      transition: 0.25s;
    }
    &:active,
    &:focus {
      box-shadow:
              2px 2px 6px $neu-2,
              -2px -2px 6px $white;
      transform: scale(0.97);
      transition: 0.25s;
    }
  }
}
/**/
.is-txr {
  left: calc(100% - 400px);
  transition: $transition;
  transform-origin: left;
}
.is-txl {
  left: 0;
  transition: $transition;
  transform-origin: right;
}
.is-z200 {
  z-index: 200;
  transition: $transition;
}
.is-hidden {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  transition: $transition;
}
.is-gx {
  animation: is-gx $transition;
}
@keyframes is-gx {
  0%,
  10%,
  100% {
    width: 400px;
  }
  30%,
  50% {
    width: 500px;
  }
}