:root {
  color-scheme: dark;
  --ink: #f8f7f2;
  --muted: #a7aaa6;
  --paper: #101211;
  --panel: #191c1a;
  --line: #343936;
  --lime: #c8ff3d;
  --orange: #ff6b35;
  --sky: #7ed7ff;
  --radius: 1.5rem;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 80% 5%, rgb(200 255 61 / 10%), transparent 24rem),
    var(--paper);
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.75rem 1rem;
  color: #101211;
  background: var(--lime);
  border-radius: 0.75rem;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.site-footer,
main {
  width: min(100% - 2rem, 70rem);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 2.75rem;
  font-size: 0.95rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  color: #101211;
  background: var(--lime);
  border-radius: 50%;
  place-items: center;
}

.header-note,
.eyebrow,
.card-kicker,
.preview-label {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero {
  padding: clamp(4rem, 12vw, 8rem) 0 clamp(3.5rem, 8vw, 6rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--lime);
}

.hero h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.35rem, 12vw, 7.5rem);
  line-height: 0.84;
  letter-spacing: -0.075em;
}

.hero h1 span {
  color: transparent;
  -webkit-text-stroke: 1px var(--muted);
}

.hero-copy {
  max-width: 36rem;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  line-height: 1.65;
}

.prototype-section {
  padding-bottom: 5rem;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 3.5rem);
  letter-spacing: -0.055em;
}

.section-heading .eyebrow {
  margin-bottom: 0.45rem;
}

.count {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.prototype-card {
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.card-preview {
  position: relative;
  display: grid;
  min-height: 18rem;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgb(126 215 255 / 18%), transparent 55%), #202623;
  place-items: center;
}

.preview-orbit {
  position: absolute;
  border: 1px solid rgb(248 247 242 / 30%);
  border-radius: 50%;
}

.preview-orbit-one {
  width: 12rem;
  height: 12rem;
}

.preview-orbit-two {
  width: 20rem;
  height: 20rem;
  border-style: dashed;
}

.preview-dot {
  z-index: 1;
  width: 4.5rem;
  height: 4.5rem;
  background: var(--lime);
  border: 0.65rem solid rgb(16 18 17 / 75%);
  border-radius: 50%;
  box-shadow:
    0 0 0 1px var(--lime),
    0 1rem 4rem rgb(200 255 61 / 25%);
}

.preview-label {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  color: var(--ink);
}

.card-content {
  padding: clamp(1.5rem, 5vw, 3rem);
}

.card-kicker {
  margin: 0 0 0.65rem;
  color: var(--sky);
}

.card-content h3 {
  margin: 0;
  font-size: clamp(2.25rem, 8vw, 4.5rem);
  letter-spacing: -0.06em;
}

.card-content > p:not(.card-kicker) {
  max-width: 37rem;
  color: var(--muted);
  line-height: 1.6;
}

.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 1.5rem 0 2rem;
  list-style: none;
}

.feature-list li {
  padding: 0.55rem 0.75rem;
  color: var(--ink);
  background: #242825;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
}

.play-link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  min-height: 3rem;
  padding: 0.2rem 1rem 0.2rem 1.2rem;
  color: #101211;
  background: var(--lime);
  border-radius: 999px;
  font-weight: 850;
  text-decoration: none;
}

.play-link span {
  font-size: 1.25rem;
}

.play-link:hover,
.play-link:focus-visible {
  background: var(--ink);
  outline: 3px solid rgb(200 255 61 / 35%);
  outline-offset: 3px;
}

.site-footer {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
}

@media (min-width: 48rem) {
  .prototype-card {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }

  .card-preview {
    min-height: 31rem;
  }

  .site-footer {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}