/* ==========================================================
   Login Transition - Dot Wave Animation
   ========================================================== */

:root {
  --login-transition-duration: 3s;
  --login-wave-duration: 0.75s;
  --login-text-in-delay: 0.825s;
  --login-text-in-duration: 0.3s;
  --login-easing: cubic-bezier(0.5, 0, 0.5, 1);
  --login-dot-color: #ffd950;
  --login-dot-color-dark: #977a12;
}

.login-transition {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: none;
  align-items: center;
  justify-items: center;
  background: radial-gradient(circle at center, #171717 0%, #060506 58%, #000 100%);
  color: #fff;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.login-transition.is-playing {
  display: grid;
  opacity: 1;
  pointer-events: auto;
}

.login-transition *,
.login-transition *::before,
.login-transition *::after {
  box-sizing: border-box;
}

.login-transition-container {
  display: grid;
  align-items: center;
  justify-items: center;
}

.login-transition-container > * {
  grid-area: 1 / 1;
}

.login-transition-title {
  margin: 0;
  font-family: "Heebo", "Arial Black", Impact, system-ui, sans-serif;
  font-weight: 900;
  font-size: clamp(3rem, 10vmin, 8rem);
  line-height: 1;
  letter-spacing: 0.03em;
  color: #fff;
  text-shadow: 0 0 24px rgba(255, 217, 80, 0.22);
  z-index: 2;
}

.login-transition-title .char {
  display: inline-block;
  opacity: 0;
  transform-origin: center 1em;
  animation-name: login-text-in;
  animation-duration: var(--login-text-in-duration);
  animation-timing-function: var(--login-easing);
  animation-delay: var(--char-delay, 0.8s);
  animation-fill-mode: forwards;
}

.login-transition-title .char[data-char="t"],
.login-transition-title .char[data-char="i"] {
  visibility: hidden;
  --squish-scale: 0.6;
  --squish-y: 10%;
}

.login-transition-title .char[data-char="i"] {
  --squish-scale: 0.9;
  --squish-y: 5%;
}

.login-transition-title .char[data-char="t"]::before,
.login-transition-title .char[data-char="i"]::before {
  content: attr(data-char);
  visibility: visible;
  display: inline-block;
  transform-origin: center 1em;
  animation: login-text-squish var(--login-transition-duration) var(--login-easing) forwards;
}

.login-transition-title .char:last-child {
  animation-name: login-text-in, login-text-bonk;
  animation-duration: var(--login-text-in-duration), var(--login-transition-duration);
  animation-timing-function: var(--login-easing), var(--login-easing);
  animation-delay: var(--char-delay, 0.8s), 0s;
  animation-fill-mode: forwards, forwards;
}

.login-transition-dot {
  position: relative;
  width: 1em;
  height: 1em;
  font-size: clamp(2rem, 5vmin, 4rem);
  z-index: 1;
  animation: login-dot var(--login-transition-duration) var(--login-easing) both;
}

.login-transition-dot-inner {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: grid;
  align-items: center;
  justify-items: center;
  overflow: hidden;
  border-radius: 50%;
  box-shadow:
    0 0 28px rgba(255, 217, 80, 0.42),
    inset 0 0 14px rgba(255, 255, 255, 0.16);
  animation: login-dot-inner var(--login-transition-duration) var(--login-easing) both;
}

.login-transition-dot-inner > * {
  grid-area: 1 / 1;
}

.login-transition-wave {
  width: 200%;
  height: 200%;
  fill: var(--login-dot-color);
  animation: login-wave-in var(--login-wave-duration) var(--login-easing);
  --offset-x: -110%;
}

.login-transition-wave.background {
  fill: var(--login-dot-color-dark);
  animation-duration: calc(0.95 * var(--login-wave-duration));
  --offset-x: 110%;
}

@keyframes login-text-in {
  0% {
    opacity: 0;
    transform: translateX(calc(-0.4em * var(--char-offset, 0))) scale(0);
  }

  90% {
    opacity: 1;
    transform: translateX(0) scale(1.1);
  }

  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes login-text-squish {
  47.5%,
  52.5% {
    transform: none;
  }

  50% {
    transform: translateY(calc(var(--squish-y) * 1)) scaleY(calc(var(--squish-scale) * 1));
  }
}

@keyframes login-text-bonk {
  80%,
  85%,
  100% {
    transform: none;
  }

  82% {
    transform: translateX(-20%);
  }
}

@keyframes login-wave-in {
  0% {
    transform: translateY(100%) translateX(var(--offset-x));
  }

  70% {
    transform: translateY(30%) translateX(0);
  }

  100% {
    transform: translateY(0) translateX(0);
  }
}

@keyframes login-dot {
  0% {
    opacity: 0;
    transform: scale(3);
  }

  10% {
    opacity: 1;
    transform: scale(3);
  }

  15% {
    transform: scale(3) translateY(0.5em) scaleY(1.5);
  }

  20% {
    transform: scale(1) translateY(-300%);
  }

  30% {
    transform: translateY(1em) scaleY(0.5);
  }

  40% {
    transform: translateY(-400%);
  }

  50% {
    transform: translateY(-1em);
  }

  53% {
    transform: translateY(-300%);
  }

  56% {
    transform: translateY(-1em);
  }

  59% {
    transform: translateY(-200%);
  }

  62% {
    transform: translateY(1em);
  }

  80%,
  90%,
  100% {
    transform: translateY(1em);
  }
}

@keyframes login-dot-inner {
  0%,
  45% {
    transform: none;
  }

  70% {
    transform: translateX(6em);
    animation-timing-function: cubic-bezier(0.5, 0, 1, 0);
  }

  80% {
    transform: translateX(4.3em);
    animation-timing-function: var(--login-easing);
  }

  83%,
  100% {
    transform: translateX(4.4em);
  }
}

@media (max-width: 576px) {
  .login-transition-title {
    font-size: 14vw;
  }

  .login-transition-dot {
    font-size: 8vw;
  }

  @keyframes login-dot-inner {
    0%,
    45% {
      transform: none;
    }

    70% {
      transform: translateX(4.8em);
    }

    80% {
      transform: translateX(3.7em);
    }

    83%,
    100% {
      transform: translateX(3.8em);
    }
  }
}