:root {
  --ink: #090a0d;
  --panel: #111318;
  --paper: #f1f0eb;
  --muted: #8c8d91;
  --red: #e43737;
  --line: rgba(255, 255, 255, 0.12);
  --cubie: 54px;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--paper);
  background: var(--ink);
  font-family: "Space Grotesk", sans-serif;
}
body:before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.25;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, #000, transparent 90%);
}
.page-glow {
  position: fixed;
  width: 50vw;
  height: 50vw;
  max-width: 720px;
  max-height: 720px;
  right: -12vw;
  top: 8vh;
  border-radius: 50%;
  background: rgba(228, 55, 55, 0.13);
  filter: blur(100px);
  pointer-events: none;
}
.topbar {
  height: 84px;
  padding: 0 clamp(22px, 5vw, 80px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 2;
}
.brand,
.back-link {
  color: var(--paper);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-transform: uppercase;
}
.brand b {
  color: var(--red);
  font-weight: 700;
}
.brand-mark {
  width: 25px;
  height: 25px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  transform: rotate(20deg);
}
.brand-mark i {
  display: block;
  background: var(--red);
}
.brand-mark i:nth-child(2),
.brand-mark i:nth-child(3) {
  background: var(--paper);
}
.eyebrow {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.22em;
}
.eyebrow span {
  color: var(--red);
  margin: 0 10px;
}
.back-link {
  color: var(--muted);
  font-size: 10px;
}
.back-link span {
  color: var(--red);
  font-size: 18px;
  margin-left: 6px;
}
.layout {
  width: min(1300px, calc(100% - 44px));
  margin: 0 auto;
  min-height: calc(100vh - 134px);
  display: grid;
  grid-template-columns: minmax(200px, 0.65fr) minmax(420px, 1.5fr) minmax(
      210px,
      0.7fr
    );
  gap: clamp(28px, 5vw, 90px);
  align-items: center;
  padding: 64px 0 60px;
  position: relative;
  z-index: 1;
}
.intro {
  align-self: center;
}
.kicker {
  color: var(--red);
  font-size: 10px;
  letter-spacing: 0.23em;
  font-weight: 700;
  margin: 0 0 28px;
}
.kicker span {
  color: var(--muted);
  margin-left: 20px;
}
.intro h1 {
  font-family: "Barlow Condensed", sans-serif;
  font-size: clamp(62px, 7vw, 104px);
  line-height: 0.82;
  letter-spacing: -0.025em;
  margin: 0;
  font-weight: 800;
}
.intro h1 em {
  color: var(--red);
  font-style: normal;
}
.lead {
  max-width: 285px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 13px;
  margin: 34px 0 0;
}
.stats {
  display: flex;
  gap: 30px;
  margin-top: 45px;
}
.stats div {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--red);
  padding-left: 12px;
}
.stats span {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 27px;
  font-weight: 600;
}
.stats small {
  color: var(--muted);
  letter-spacing: 0.18em;
  font-size: 8px;
  margin-top: 3px;
}
.play-area {
  min-width: 0;
}
.stage {
  height: min(580px, 52vw);
  min-height: 400px;
  display: grid;
  place-items: center;
  perspective: 1000px;
  position: relative;
  cursor: grab;
  touch-action: none;
}
.stage.dragging {
  cursor: grabbing;
}
.cube {
  width: calc(var(--cubie) * 3);
  height: calc(var(--cubie) * 3);
  position: relative;
  transform-style: preserve-3d;
  transform: rotateX(-24deg) rotateY(-34deg);
  z-index: 1;
}
.cubie {
  width: var(--cubie);
  height: var(--cubie);
  position: absolute;
  top: calc(50% - var(--cubie) / 2);
  left: calc(50% - var(--cubie) / 2);
  transform-style: preserve-3d;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.sticker {
  pointer-events: auto;
  position: absolute;
  width: calc(var(--cubie) - 5px);
  height: calc(var(--cubie) - 5px);
  border: 2px solid #0b0c0f;
  border-radius: 5px;
  backface-visibility: visible;
  box-shadow: inset 0 0 8px rgba(255, 255, 255, 0.14);
}
.sticker.front {
  transform: translateZ(calc(var(--cubie) / 2));
}
.sticker.back {
  transform: rotateY(180deg) translateZ(calc(var(--cubie) / 2));
}
.sticker.right {
  transform: rotateY(90deg) translateZ(calc(var(--cubie) / 2));
}
.sticker.left {
  transform: rotateY(-90deg) translateZ(calc(var(--cubie) / 2));
}
.sticker.top {
  transform: rotateX(90deg) translateZ(calc(var(--cubie) / 2));
}
.sticker.bottom {
  transform: rotateX(-90deg) translateZ(calc(var(--cubie) / 2));
}
.sticker.turn-highlight {
  box-shadow:
    0 0 10px rgba(255, 255, 255, 0.45),
    inset 0 0 8px rgba(255, 255, 255, 0.14);
  z-index: 2;
}
.sticker.turn-highlight::after {
  content: "";
  position: absolute;
  inset: -4px;
  padding: 3px;
  border-radius: 8px;
  background: conic-gradient(
    from 0deg,
    #ff4d6d,
    #ff9f43,
    #ffe04b,
    #45d483,
    #24c8df,
    #5478ff,
    #b85cff,
    #ff4dbe,
    #ff4d6d
  );
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;
  pointer-events: none;
}
.color-white {
  background: #f4f2e9;
}
.color-yellow {
  background: #f2c735;
}
.color-red {
  background: #d93232;
}
.color-orange {
  background: #ed762f;
}
.color-blue {
  background: #2c72bc;
}
.color-green {
  background: #37a56a;
}
.stage-shadow {
  position: absolute;
  bottom: 14%;
  width: 250px;
  height: 35px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.8);
  filter: blur(22px);
  transform: rotate(-10deg);
}
.orbit-guide {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 0;
  width: min(100%, calc(var(--cubie) * 7));
  aspect-ratio: 1;
  overflow: visible;
  pointer-events: none;
  transform: translate(-50%, -50%);
  animation: orbit-spin 32s linear infinite;
}
.orbit-ring {
  fill: none;
  stroke: rgba(241, 240, 235, 0.12);
  stroke-width: 1;
  stroke-dasharray: 1 7;
  stroke-linecap: round;
}
.orbit-arrow {
  fill: none;
  stroke: url(#orbit-gradient);
  stroke-width: 2.5;
  stroke-linecap: round;
  opacity: 0.55;
}
.orbit-label {
  fill: url(#orbit-gradient);
  font-family: "Space Grotesk", sans-serif;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 2px;
  opacity: 0.55;
}
@keyframes orbit-spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .orbit-guide {
    animation: none;
  }
}
.stage-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}
.outline-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--paper);
  padding: 12px 17px;
  font:
    600 10px "Space Grotesk",
    sans-serif;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: 0.2s ease;
}
.outline-button:hover {
  border-color: var(--red);
  color: var(--red);
}
.outline-button span {
  font-size: 18px;
  vertical-align: -2px;
  margin-right: 7px;
}
.hint {
  color: #66686e;
  font-size: 8px;
  letter-spacing: 0.15em;
  text-align: center;
  margin: 20px 0 0;
}
.hint b {
  color: var(--red);
  margin: 0 5px;
}
.mouse-icon {
  color: var(--paper);
  font-size: 15px;
  margin-right: 5px;
}
.controls {
  align-self: center;
  padding: 22px;
  background: rgba(17, 19, 24, 0.78);
  border: 1px solid var(--line);
}
.panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.16em;
  font-weight: 700;
}
.panel-heading small {
  color: var(--muted);
  font-size: 7px;
  font-weight: 400;
  letter-spacing: 0.08em;
}
.move-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 18px 0;
}
.move-grid button {
  aspect-ratio: 1;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
  cursor: pointer;
  transition: 0.2s ease;
}
.move-grid button:hover,
.move-grid button:focus-visible {
  background: var(--red);
  border-color: var(--red);
  transform: translateY(-3px);
}
.move-grid b {
  display: block;
  font:
    700 25px "Barlow Condensed",
    sans-serif;
}
.move-grid small {
  font-size: 7px;
  color: var(--muted);
  letter-spacing: 0.1em;
}
.move-grid button:hover small {
  color: #fff;
}
.control-note {
  color: var(--muted);
  font-size: 9px;
  line-height: 2.2;
  border-top: 1px solid var(--line);
  padding-top: 15px;
}
.keycap {
  border: 1px solid #4e5055;
  color: var(--paper);
  padding: 3px 5px;
  font-size: 8px;
  margin: 0 3px;
}
.legend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px 4px;
  color: var(--muted);
  font-size: 8px;
  margin-top: 20px;
}
.dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-right: 5px;
}
.dot-white {
  background: #f4f2e9;
}
.dot-yellow {
  background: #f2c735;
}
.dot-red {
  background: #d93232;
}
.dot-orange {
  background: #ed762f;
}
.dot-blue {
  background: #2c72bc;
}
.dot-green {
  background: #37a56a;
}
footer {
  padding: 0 5vw 24px;
  display: flex;
  justify-content: space-between;
  color: #55575d;
  font-size: 8px;
  letter-spacing: 0.15em;
  position: relative;
  z-index: 1;
}
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr 1.4fr;
    gap: 30px;
  }
  .intro {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px 35px;
    align-items: end;
  }
  .kicker {
    grid-column: 1 / -1;
    margin-bottom: 0;
  }
  .intro h1 {
    grid-row: span 2;
  }
  .lead {
    margin: 0;
  }
  .stats {
    margin-top: 14px;
  }
  .controls {
    grid-column: 1 / -1;
    max-width: 540px;
    justify-self: center;
    width: 100%;
  }
  .move-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}
@media (max-width: 600px) {
  :root {
    --cubie: 38px;
  }
  .sticker {
    width: var(--cubie);
    height: var(--cubie);
    border-width: 1px;
    border-radius: 3px;
  }
  .topbar {
    height: 68px;
    padding: 0 18px;
  }
  .eyebrow {
    display: none;
  }
  .layout {
    width: calc(100% - 32px);
    display: flex;
    flex-direction: column;
    padding-top: 38px;
    gap: 30px;
  }
  .intro {
    display: block;
    width: 100%;
  }
  .intro h1 {
    font-size: 63px;
  }
  .lead {
    max-width: 330px;
    margin-top: 20px;
  }
  .stats {
    margin-top: 22px;
  }
  .play-area {
    width: 100%;
  }
  .stage {
    min-height: 300px;
    height: 78vw;
    max-height: 400px;
  }
  .stage-shadow {
    bottom: 13%;
    width: 190px;
  }
  .controls {
    display: none;
  }
  .hint {
    font-size: 7px;
    letter-spacing: 0.08em;
  }
  .back-link {
    font-size: 9px;
  }
  footer {
    padding: 0 16px 18px;
    font-size: 7px;
  }
  footer span:last-child {
    display: none;
  }
}