html {
  scroll-behavior: smooth;
}

body {
  --scroll-progress: 0;
  --scroll-y: 0;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: calc(var(--scroll-progress) * 100%);
  height: 3px;
  z-index: 9999;
  pointer-events: none;
  background: linear-gradient(90deg, #8ab4ff, #79e6b3, #d79cff);
  box-shadow: 0 0 18px rgba(121, 230, 179, .58);
  transform-origin: left center;
}

[data-reveal] {
  opacity: 0;
  transform: translate3d(0, 28px, 0) scale(.985);
  filter: blur(10px);
  transition:
    opacity .72s cubic-bezier(.2, .8, .2, 1),
    transform .72s cubic-bezier(.2, .8, .2, 1),
    filter .72s cubic-bezier(.2, .8, .2, 1),
    border-color .28s ease,
    box-shadow .28s ease;
  transition-delay: calc(min(var(--reveal-order, 0), 6) * 48ms);
  will-change: opacity, transform, filter;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  filter: blur(0);
}

[data-reveal="hero"].is-visible,
[data-reveal="header"].is-visible {
  transform: translate3d(0, calc(var(--scroll-y) * -0.018px), 0) scale(1);
}

[data-reveal="pet"].is-visible {
  transform: translate3d(0, calc(var(--scroll-y) * .014px), 0) scale(1);
}

.card,
.panel,
.market-bubble,
.quote,
.chart-box {
  transition:
    transform .28s ease,
    border-color .28s ease,
    box-shadow .28s ease,
    background-color .28s ease;
}

.card.is-visible:hover,
.panel.is-visible:hover,
.market-bubble.is-visible:hover {
  transform: translate3d(0, -3px, 0);
  border-color: rgba(198, 213, 255, .42);
  box-shadow: 0 30px 76px rgba(0, 0, 0, .38);
}

body.scrolling-down header {
  transform: translateY(-2px);
}

body.scrolling-up header {
  transform: translateY(0);
}

header,
.top {
  transition: transform .22s ease, backdrop-filter .22s ease;
}

body.has-scrolled header {
  backdrop-filter: blur(18px) saturate(1.12);
  -webkit-backdrop-filter: blur(18px) saturate(1.12);
}

body.has-scrolled .pet {
  filter: drop-shadow(0 18px 26px rgba(0,0,0,.46)) brightness(1.04);
}

nav a,
.chip,
.seg button,
.go,
.run,
button[type="submit"] {
  transition: transform .18s ease, filter .18s ease, border-color .18s ease;
}

nav a:active,
.chip:active,
.seg button:active,
.go:active,
.run:active,
button[type="submit"]:active {
  transform: scale(.965);
  filter: brightness(1.08);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .scroll-progress,
  [data-reveal],
  .card,
  .panel,
  .market-bubble,
  .quote,
  .chart-box,
  header,
  .top,
  nav a,
  .chip,
  .seg button,
  .go,
  .run,
  button[type="submit"] {
    transition: none !important;
    animation: none !important;
    transform: none !important;
    filter: none !important;
  }

  [data-reveal] {
    opacity: 1;
  }
}