@import url("https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&family=Playwrite+AU+VIC+Guides&family=Space+Grotesk:wght@300..700&display=swap");

body {
  margin: 0;
  background-color: #00000029;
  font-family: "Space Grotesk", serif;
}

:root {
  --grid-size: calc(100vw / 10);
  --subgrid-size: calc(var(--grid-size) / 5);
}

::-webkit-scrollbar {
  display: none;
}

.docs {
  position: absolute;
  top: 60px;
  right: 60px;
}

.docs p {
  text-decoration: none;
  color: #fff;
}

.docs p:hover {
  text-decoration: underline;
}

.docs-dropdown {
  display: none;
  position: absolute;
  background-color: #000;
  width: 120px;
  padding: 10px;
  right: 0px;
  border: 1px solid #333;
  z-index: 1;
}

.docs-dropdown a {
  display: block;
  color: #fff;
  padding: 6px 0;
  text-decoration: none;
}

.docs-dropdown a:hover {
  text-decoration: underline;
}

.docs:hover .docs-dropdown {
  display: block;
}

/* Section 1 styles */

.section-1 {
  background-color: #000000;
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.1) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.15) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size),
    var(--grid-size) var(--grid-size), var(--subgrid-size) var(--subgrid-size),
    var(--subgrid-size) var(--subgrid-size);
  background-position: -2px -2px, -2px -2px, -1px -1px, -1px -1px;
  background-attachment: fixed;
}

.section-1 .title {
  font-size: 120px;
  margin: 0;
}

.section-1 .caption {
  font-size: 24px;
  margin: 0;
}

@media (max-width: 980px) {
  .section-1 .title {
    font-size: 100px;
  }
  .section-1 .caption {
    font-size: 20px;
  }
}

@media (max-width: 768px) {
  .section-1 .title {
    font-size: 80px;
  }
  .section-1 .caption {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .section-1 .title {
    font-size: 50px;
  }
  .section-1 .caption {
    font-size: 12px;
  }
}

/* Section 2 styles */

@layer base, effect, stick;

@layer base {
  :root {
    --font-size-min: 14;
    --font-size-max: 20;
    --font-ratio-min: 1.1;
    --font-ratio-max: 1.33;
    --font-width-min: 375;
    --font-width-max: 1500;
  }

  :where(.section-2) {
    --fluid-min: calc(
      var(--font-size-min) * pow(var(--font-ratio-min), var(--font-level, 0))
    );
    --fluid-max: calc(
      var(--font-size-max) * pow(var(--font-ratio-max), var(--font-level, 0))
    );
    --fluid-preferred: calc(
      (var(--fluid-max) - var(--fluid-min)) /
        (var(--font-width-max) - var(--font-width-min))
    );
    --fluid-type: clamp(
      (var(--fluid-min) / 16) * 1rem,
      ((var(--fluid-min) / 16) * 1rem) -
        (((var(--fluid-preferred) * var(--font-width-min)) / 16) * 1rem) +
        (var(--fluid-preferred) * var(--variable-unit, 100vi)),
      (var(--fluid-max) / 16) * 1rem
    );
    font-size: var(--fluid-type);
  }

  body::before {
    --size: 45px;
    --line: color-mix(in hsl, canvasText, transparent 70%);
    content: "";
    height: 100svh;
    width: 100vw;
    position: fixed;
    background: linear-gradient(90deg, var(--line) 0.2px, white 1px var(--size))
        50% 50% / var(--size) var(--size),
      linear-gradient(var(--line) 1px, white 1px var(--size)) 50% 50% /
        var(--size) var(--size);
    mask: linear-gradient(-20deg, transparent 5%, white);
    z-index: -1;
  }
}

@layer effect {
  :root {
    --start: 0;
    --end: 360;
    --lightness: 65%;
    --base-chroma: 0.3;
  }
  ul {
    --step: calc((var(--end) - var(--start)) / (var(--count) - 1));
  }
  li {
    color: oklch(
      var(--lightness) var(--base-chroma)
        calc(var(--start) + (var(--step) * var(--i)))
    );
  }

  @supports (animation-timeline: scroll()) and (animation-range: 0% 100%) {
    li {
      opacity: 0.2;
      animation-name: brighten;

      &:first-of-type {
        opacity: 1;
        animation-name: dim;
      }
      &:last-of-type {
        opacity: 0.2;
        animation-name: bright;
      }
      animation-fill-mode: both;
      animation-timing-function: linear;
      animation-range: cover calc(50% - 1lh) calc(50% + 1lh);
      animation-timeline: view();
    }

    @keyframes dim {
      0%,
      50% {
        opacity: 1;
      }
      100% {
        opacity: 0.2;
      }
    }

    @keyframes bright {
      0% {
        opacity: 0.2;
      }
      50%,
      100% {
        opacity: 1;
      }
    }

    @keyframes brighten {
      0%,
      100% {
        opacity: 0.2;
      }
      50% {
        opacity: 1;
        filter: brightness(1.2);
      }
    }
  }
}

@layer stick {
  .section-2 {
    display: flex;
    font-family: "Montserrat", serif;
    justify-content: center;
    line-height: 1.25;
    width: 100%;
    font-size: 80px;
    font-weight: 600;
    margin: 80px auto;
  }
  .section-2 h2 {
    position: sticky;
    top: calc(50% - 0.5lh);
    font-size: inherit;
    margin: 0;
    display: inline-block;
    height: fit-content;
  }
  ul {
    padding-inline: 0;
    margin: 0;
    list-style-type: none;
  }

  h2,
  li:last-of-type {
    background: linear-gradient(
      canvasText 50%,
      color-mix(in oklch, canvas, canvasText 25%)
    );
    background-clip: text;
    /* color: #0000; */
  }
}

@media (max-width: 980px) {
  .section-2 {
    font-size: 60px;
    font-weight: 600;
    margin-bottom: 200px;
  }
}

@media (max-width: 768px) {
  .section-2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 300px;
  }
}

@media (max-width: 480px) {
  .section-2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 400px;
  }
}

/* Section 3 styles */

.section-3 {
  overflow: hidden;
  max-height: 500px;
}

.reveal-text {
  font-size: 100px;
  font-weight: bolder;
  text-transform: uppercase;
  color: #fff;
}

@media (max-width: 980px) {
  .section-3 {
    margin-top: -100px;
  }
  .reveal-text {
    font-size: 80px;
  }
}

@media (max-width: 768px) {
  .section-3 {
    margin-top: -200px;
  }
  .reveal-text {
    font-size: 60px;
  }
}

@media (max-width: 480px) {
  .section-3 {
    margin-top: -320px;
  }
  .reveal-text {
    font-size: 40px;
  }
}

:root {
  --space: 1rem;
  --bg: #09090b;
  --fg: #e3e3e3;
  --surface-1: #101012;
  --surface-2: #27272a;
  --surface-3: #52525b;
  --ease-out: cubic-bezier(0.5, 1, 0.89, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
}

.card {
  position: relative;
  overflow: hidden;
  text-align: center;
  display: flex;
  align-items: center;
  color: var(--fg);
  background: var(--bg);
  display: grid;
  transition: border-color 200ms var(--ease-out);
  user-select: none;

  > * {
    grid-area: card;
    position: relative;
    z-index: 1;
  }

  svg {
    position: relative;
    z-index: 1;
    width: 30%;
    color: var(--surface-3);
    transition: 300ms var(--ease-out);
    transition-property: color, scale;
  }

  button {
    opacity: 0;
  }

  &:focus-within {
    outline: 5px auto Highlight;
    outline: 5px auto -webkit-focus-ring-color;
  }

  &:where(:hover, :focus-within) {
    border-color: var(--active-color, var(--fg));
    transition: border-color 800ms var(--ease-in-out);
  }

  &:where(:hover, :focus-within) svg {
    color: var(--active-color, var(--fg));
    scale: 1.1;
    transition: 300ms var(--ease-in-out);
  }

  &:where(:hover, :focus-within)::before {
    opacity: 1;
  }

  &:where(:hover, :focus-within)::after {
    opacity: 1;
  }
}

footer {
  text-align: center;
  font-size: 14px;
  padding: 20px;
}