@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@800&family=Roboto:wght@100;300&display=swap');
@import 'normalize.css';

*,
*:after,
*:before {
  box-sizing: border-box;
  transform-style: preserve-3d;
  margin: 0;
  padding: 0;
}

:root {
  --shadow: hsl(0 0% 0% / 0.9);
  --bg: hsl(0 0% 70%);
  --header: hsl(0 0% 65%);
  --lit-header: hsl(0 0% 100%);
  --speed: 2s;
  --ease: linear(
    0 0%,
    0.0036 9.62%,
    0.0185 16.66%,
    0.0489 23.03%,
    0.0962 28.86%,
    0.1705 34.93%,
    0.269 40.66%,
    0.3867 45.89%,
    0.5833 52.95%,
    0.683 57.05%,
    0.7829 62.14%,
    0.8621 67.46%,
    0.8991 70.68%,
    0.9299 74.03%,
    0.9545 77.52%,
    0.9735 81.21%,
    0.9865 85%,
    0.9949 89.15%,
    1 100%
  );
  color-scheme: dark only;
}

body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  gap: 1rem;
  background: var(--bg);
  font-family: 'Roboto', 'SF Pro Text', 'SF Pro Icons', 'AOS Icons',
    'Helvetica Neue', Helvetica, Arial, sans-serif, system-ui;
  perspective: 1200px;
}

body::before {
  --size: 45px;
  --line: color-mix(in lch, canvas, transparent 85%);
  content: '';
  height: 100vh;
  width: 100vw;
  position: fixed;
  background: linear-gradient(
        90deg,
        var(--line) 1px,
        transparent 1px var(--size)
      )
      50% 50% / var(--size) var(--size),
    linear-gradient(var(--line) 1px, transparent 1px var(--size)) 50% 50% /
      var(--size) var(--size);
  mask: linear-gradient(-35deg, transparent 30%, white);
  top: 0;
  transform-style: flat;
  pointer-events: none;
  z-index: -1;
}

@property --swing-x {
  initial-value: 0;
  inherits: false;
  syntax: '<integer>';
}
@property --swing-y {
  initial-value: 0;
  inherits: false;
  syntax: '<integer>';
}

/* a {
  text-transform: uppercase;
  text-decoration: none;
  background: var(--button);
  color: var(--button-color);
  padding: 1rem 4rem;
  border-radius: 4rem;
  font-size: 0.875rem;
  letter-spacing: 0.05rem;
} */
p {
  font-weight: 100;
}
h1 {
  animation: swing var(--speed) infinite alternate var(--ease);
  font-size: clamp(5rem, 40vmin, 20rem);
  font-family: 'Open Sans', sans-serif;
  margin: 0;
  letter-spacing: 1rem;
  transform: translate3d(0, 0, 0vmin);
  --x: calc(50% + (var(--swing-x) * 0.5) * 1%);
  background: radial-gradient(var(--lit-header), var(--header) 45%) var(--x)
    100%/200% 200%;
  -webkit-background-clip: text;
  color: transparent;
}
h1 span {
  animation: swing var(--speed) infinite alternate var(--ease);
  position: absolute;
  top: 0;
  left: 0;
  color: var(--shadow);
  filter: blur(1.5vmin);
  transform: scale(1.05) translate3d(0, 12%, -10vmin)
    translate(
      calc((var(--swing-x) * 0.05) * 1%),
      calc((var(--swing-y) * -0.025) * 1%)
    );
}
.cloak {
  animation: swing var(--speed) infinite alternate-reverse var(--ease);
  height: 100%;
  width: 100%;
  transform-origin: 50% 25%;
  transform: rotate(calc(var(--swing-x) * -0.25deg));
  background: radial-gradient(
    40% 40% at 50% calc(42% + (var(--swing-y) * 0.01%)),
    transparent,
    hsl(0 0% 2% / 0.94) 38vmax
  );
}
.cloak__wrapper {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.cloak__container {
  height: 250vmax;
  width: 250vmax;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.info {
  color: color-mix(in lch, canvasText, transparent 75%);
  text-align: center;
  line-height: 1.5;
  width: 44ch;
  max-width: calc(100% - 2rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: color 0.25s var(--ease);
}

.info:is(:hover, :focus-within) {
  color: canvasText;
}

.info p {
  --x: calc(50% + (var(--swing-x) * 0.5) * 1%);
  animation: swing var(--speed) infinite alternate-reverse var(--ease);
  background: radial-gradient(
    50% 250% at var(--x) -50%,
    color-mix(in lch, canvasText, transparent 25%),
    color-mix(in lch, canvasText, transparent 75%)
  );
  -webkit-background-clip: text;
  color: transparent;
}

p::selection {
  background: hotpink;
  color: canvas;
}

.follow {
  border-radius: 6px;
  border: 1px solid currentColor;
  padding: 0.75rem 4rem;
  text-decoration: none;
  color: currentColor;
  align-self: center;
  outline-color: currentColor;
}

@keyframes swing {
  0% {
    --swing-x: -100;
    --swing-y: -100;
  }
  50% {
    --swing-y: 0;
  }
  100% {
    --swing-y: -100;
    --swing-x: 100;
  }
}

/* Theming */
.bear-link {
  color: canvas;
  position: fixed;
  top: 1rem;
  left: 1rem;
  width: 48px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  opacity: 0.8;
}

:where(.x-link, .bear-link):is(:hover, :focus-visible) {
  opacity: 1;
}
.bear-link svg {
  width: 75%;
}