:root {
  --void: #0a0c0a;
  --plate: #121512;
  --ink: #1f3f13;
  --moss: #487233;
  --face: #b2ce5b;
  --mist: #eaf6b0;
  --screen: #ebfc86;
  --edge: #c8f542;
  --line: rgba(72, 114, 51, 0.38);
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --pixel: "Silkscreen", "IBM Plex Sans", sans-serif;
  --art: 300px;
  --bezel: 4px;
  --frame: calc(var(--art) + var(--bezel) * 2);
  --thumb: 60px;
  --gap: 4px;
  --cell: calc((var(--art) - (var(--cols) - 1) * var(--gap)) / var(--cols));
  --control: 32px;
  --cols: 5;
}

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

html {
  color-scheme: dark;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--void);
  color: var(--mist);
  overflow-x: clip;
  scrollbar-width: thin;
  scrollbar-color: var(--moss) var(--void);
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

html::-webkit-scrollbar-track,
body::-webkit-scrollbar-track {
  background: var(--void);
}

html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb {
  background: var(--moss);
  border: 2px solid var(--void);
}

html::-webkit-scrollbar-thumb:hover,
body::-webkit-scrollbar-thumb:hover {
  background: var(--face);
}

body {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  touch-action: manipulation;
}

.page {
  width: var(--frame);
  max-width: 100%;
  margin: 0 auto;
  padding: 40px 0 0;
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.mast {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.brand h1 {
  margin: 0;
  font-family: var(--pixel);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.25;
}

.brand p {
  margin: 10px 0 0;
  font-family: var(--pixel);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--face);
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.hero {
  width: 100%;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.plate {
  position: relative;
  box-sizing: content-box;
  width: var(--art);
  height: var(--art);
  border: var(--bezel) solid var(--ink);
  background: var(--plate);
  overflow: hidden;
}

.led {
  position: absolute;
  top: 4px;
  left: 4px;
  z-index: 2;
  width: 8px;
  height: 8px;
  background: var(--edge);
  box-shadow: 0 0 0 2px var(--ink);
  pointer-events: none;
}

.led.is-off {
  background: var(--moss);
}

.plate img {
  width: var(--art);
  height: var(--art);
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  cursor: pointer;
}

.flash {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: var(--screen);
  opacity: 0;
}

.plate.is-flash .flash {
  opacity: 1;
}

.hud {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 24px 0 0;
}

.pad,
.chip,
.score {
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--control);
  border: 2px solid var(--ink);
  background: var(--moss);
  color: var(--screen);
  clip-path: polygon(
    4px 0,
    calc(100% - 4px) 0,
    100% 4px,
    100% calc(100% - 4px),
    calc(100% - 4px) 100%,
    4px 100%,
    0 calc(100% - 4px),
    0 4px
  );
}

.pad {
  width: var(--control);
  padding: 0;
}

.pad:hover,
.chip:hover {
  background: var(--ink);
  color: var(--edge);
}

.pad:active,
.chip:active {
  transform: translateY(2px);
}

.chip {
  font-family: var(--pixel);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0 10px;
  white-space: nowrap;
}

.score {
  width: 72px;
  padding: 0;
  background: var(--ink);
  font-family: var(--pixel);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--screen);
}

.strip {
  display: grid;
  grid-template-columns: repeat(var(--cols), var(--cell));
  gap: var(--gap);
  justify-content: center;
  width: var(--art);
  margin: 24px auto 0;
  padding: 0;
  border: 0;
}

.strip button {
  width: var(--cell);
  height: var(--cell);
  line-height: 0;
  opacity: 0.42;
}

.strip button:hover,
.strip button.is-on {
  opacity: 1;
}

.strip button.is-on {
  outline: 2px solid var(--edge);
  outline-offset: -2px;
}

.strip img {
  width: var(--cell);
  height: var(--cell);
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.lower {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 88px;
  padding: 32px 0 8px;
}

.facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--moss);
  border: 2px solid var(--moss);
}

.facts li {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 8px;
  background: var(--ink);
  font-family: var(--pixel);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--screen);
  text-align: center;
  line-height: 1.25;
}

.block {
  width: 100%;
  text-align: center;
}

.kicker {
  margin: 0 0 20px;
  font-family: var(--pixel);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--face);
}

.block h2 {
  margin: 0 auto 24px;
  max-width: 18em;
  font-family: var(--sans);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0;
}

.block p {
  margin: 0 auto;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.foot {
  width: 100vw;
  margin: 48px 0 0;
  margin-left: calc(50% - 50vw);
}

.ground {
  height: 72px;
  background-color: transparent;
  background-image: url("ground.svg");
  background-repeat: repeat-x;
  background-position: center bottom;
  background-size: 144px 72px;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.foot-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 16px 24px;
  background: var(--void);
  border-top: 2px solid var(--ink);
}

.foot p {
  margin: 0;
  font-family: var(--pixel);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--face);
}

@media (min-width: 374px) {
  :root {
    --art: min(350px, calc(100vw - 24px));
    --thumb: 70px;
    --gap: 6px;
  }
}

@media (min-width: 748px) {
  :root {
    /* Mast + hud + a strip peek stay in view so the page invites a scroll. */
    --art: min(700px, calc(100vw - 64px), calc(100vh - 280px));
    --thumb: 70px;
    --cols: 10;
    --gap: 8px;
  }

  .page {
    padding: 48px 0 0;
    gap: 40px;
  }

  .brand h1 {
    font-size: 20px;
  }

  .links {
    gap: 8px;
  }

  .chip {
    font-size: 12px;
    padding: 0 12px;
  }

  .hud {
    margin: 20px 0 0;
  }

  .strip {
    margin: 20px auto 0;
  }

  .lower {
    gap: 120px;
  }

  .block h2 {
    font-size: 26px;
  }

  .facts {
    grid-template-columns: repeat(4, 1fr);
  }

  .facts li {
    min-height: 40px;
    letter-spacing: 0.08em;
  }
}

@media (min-width: 1120px) {
  :root {
    --art: min(960px, calc(100vw - 96px), calc(100vh - 300px));
    --bezel: 6px;
    --control: 40px;
    --gap: 10px;
  }

  body {
    font-size: 17px;
  }

  .page {
    padding: 56px 0 0;
    gap: 48px;
  }

  .mast {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }

  .brand h1 {
    font-size: 28px;
  }

  .brand p {
    font-size: 14px;
  }

  .links {
    flex-wrap: nowrap;
    flex-shrink: 0;
  }

  .chip {
    font-size: 13px;
    padding: 0 14px;
  }

  .score {
    width: 88px;
    font-size: 14px;
  }

  .hud {
    gap: 10px;
    margin: 24px 0 0;
  }

  .strip {
    margin: 24px auto 0;
  }

  .lower {
    gap: 144px;
    padding: 48px 0 8px;
  }

  .facts li {
    min-height: 52px;
    font-size: 14px;
  }

  .kicker {
    font-size: 14px;
  }

  .block h2 {
    font-size: 34px;
  }

  .block p {
    font-size: 17px;
  }

  .ground {
    height: 96px;
    background-size: 192px 96px;
  }

  .foot-bar {
    padding: 20px 16px 32px;
  }

  .foot p {
    font-size: 14px;
  }
}

@media (min-width: 1480px) {
  :root {
    --art: min(1100px, calc(100vw - 120px), calc(100vh - 320px));
    --bezel: 8px;
    --control: 48px;
    --gap: 12px;
  }

  body {
    font-size: 18px;
  }

  .page {
    padding: 64px 0 0;
    gap: 56px;
  }

  .brand h1 {
    font-size: 32px;
  }

  .chip {
    font-size: 14px;
    padding: 0 16px;
  }

  .score {
    width: 104px;
    font-size: 16px;
  }

  .block h2 {
    font-size: 40px;
  }

  .block p {
    font-size: 18px;
  }

  .ground {
    height: 120px;
    background-size: 240px 120px;
  }
}