:root {
  color-scheme: light;
  --ink: #17233c;
  --body: #3b475c;
  --muted: #69758a;
  --page: #eef2f7;
  --paper: #ffffff;
  --line: #d6deea;
  --primary: #5b3fc0;
  --primary-dark: #442b9e;
  --primary-soft: #eeeaff;
  --accent: #ffb020;
  --success: #137a4b;
  --success-soft: #e8f8ef;
  --danger: #b42318;
  --cube-size: 260px;
  --cube-half: 130px;
  --cube-offset: -130px;
  --view-x: -24deg;
  --view-y: 34deg;
}

* { box-sizing: border-box; }

html { min-width: 280px; background: var(--page); }

body {
  margin: 0;
  color: var(--body);
  background:
    radial-gradient(circle at 8% 0%, rgba(91, 63, 192, .12), transparent 380px),
    radial-gradient(circle at 96% 25%, rgba(255, 176, 32, .13), transparent 330px),
    var(--page);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

button, select { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  color: #fff;
  background: var(--ink);
  border-radius: 8px;
  -webkit-transform: translateY(-150%);
  transform: translateY(-150%);
}

.skip-link:focus { -webkit-transform: none; transform: none; }

.game-header {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  min-height: 64px;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  padding: 10px 4vw;
  color: #fff;
  background: var(--ink);
  border-bottom: 4px solid var(--accent);
}

.game-header > * + * { margin-left: 16px; }

.mini-brand {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.mini-brand > * + * { margin-left: 10px; }

.mini-cube {
  display: grid;
  grid-template-columns: repeat(3, 7px);
  gap: 2px;
  padding: 4px;
  background: #0a1020;
  border-radius: 5px;
}

.mini-cube i { width: 7px; height: 7px; background: #fff; border-radius: 1px; }
.mini-cube i:nth-child(2), .mini-cube i:nth-child(6) { background: #ffd500; }
.mini-cube i:nth-child(3), .mini-cube i:nth-child(8) { background: #c41e3a; }
.mini-cube i:nth-child(4), .mini-cube i:nth-child(9) { background: #00a651; }

.language-control {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  font-size: 13px;
}

.language-control label { font-weight: 700; }
.language-control select { margin-left: 8px; }

select {
  min-height: 44px;
  padding: 8px 34px 8px 11px;
  color: var(--ink);
  background: #fff;
  border: 1px solid #b8c2d2;
  border-radius: 9px;
}

.game-main {
  width: 94%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 0 48px;
}

.hero-panel,
.setup-panel,
.play-panel,
.solution-panel,
.help-panel {
  margin-bottom: 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 14px 36px rgba(23, 35, 60, .08);
}

.hero-panel {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  padding: 28px 32px;
  overflow: hidden;
  background: linear-gradient(135deg, #fff 0%, #f3efff 64%, #fff5da 100%);
}

.hero-panel > * + * { margin-left: 22px; }

.eyebrow,
.section-number {
  margin: 0 0 5px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .11em;
  text-transform: uppercase;
}

h1, h2, h3, p { overflow-wrap: break-word; }
h1, h2, h3 { color: var(--ink); line-height: 1.18; }
h1 { margin: 0; font-size: 38px; }
.hero-copy { max-width: 720px; margin: 10px 0 0; font-size: 17px; }

.hero-badge {
  display: grid;
  width: 104px;
  height: 104px;
  flex: 0 0 104px;
  place-content: center;
  color: #fff;
  background: var(--ink);
  border: 6px solid var(--accent);
  border-radius: 28px;
  text-align: center;
  -webkit-transform: rotate(5deg);
  transform: rotate(5deg);
  box-shadow: 0 12px 25px rgba(23, 35, 60, .18);
}

.hero-badge strong { font-size: 25px; }
.hero-badge span { color: #c9d2e3; font-size: 12px; }

.setup-panel,
.play-panel,
.solution-panel,
.help-panel { padding: 26px 30px; }

.section-heading {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: end;
  -ms-flex-align: end;
  align-items: flex-end;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  margin-bottom: 20px;
}

.section-heading > * + * { margin-left: 24px; }

.section-heading h2 { margin: 0; font-size: 25px; }
.section-heading > p { max-width: 540px; margin: 0; color: var(--muted); }
.compact-heading { margin-bottom: 8px; }

.setup-grid,
.solution-toolbar {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: end;
  -ms-flex-align: end;
  align-items: flex-end;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
}

.setup-grid > * + *,
.solution-toolbar > * + * { margin-left: 18px; }

.field-label { display: grid; gap: 6px; color: var(--ink); font-weight: 800; }
.field-label select { min-width: 220px; font-weight: 500; }

.setup-actions,
.guide-actions {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}

.setup-actions > *,
.guide-actions > * { margin: 4px; }

.primary-button,
.secondary-button,
.danger-button,
.text-button {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  min-height: 46px;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  padding: 10px 15px;
  border-radius: 10px;
  font-weight: 800;
  cursor: pointer;
  touch-action: manipulation;
}

.primary-button > * + *,
.secondary-button > * + *,
.danger-button > * + *,
.text-button > * + * { margin-left: 7px; }

.primary-button { color: #fff; background: var(--primary); border: 2px solid var(--primary); }
.primary-button:hover:not(:disabled) { background: var(--primary-dark); border-color: var(--primary-dark); }
.secondary-button { color: var(--ink); background: #fff; border: 2px solid #aeb9c9; }
.secondary-button:hover:not(:disabled) { border-color: var(--primary); background: var(--primary-soft); }
.danger-button { color: #fff; background: var(--danger); border: 2px solid var(--danger); }
.text-button { min-height: 42px; padding: 7px 9px; color: var(--primary-dark); background: transparent; border: 0; text-decoration: underline; }
button:disabled { cursor: not-allowed; opacity: .46; }
button:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.scramble-row {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  margin-top: 18px;
  padding: 12px 14px;
  color: var(--ink);
  background: #f6f8fb;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.scramble-row > * + * { margin-left: 10px; }

.play-layout {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: stretch;
  -ms-flex-align: stretch;
  align-items: stretch;
}

.play-layout > * + * { margin-left: 26px; }

.cube-column { min-width: 0; flex: 1 1 58%; }
.move-panel { min-width: 290px; flex: 1 1 42%; padding: 18px; background: #f7f8fb; border: 1px solid var(--line); border-radius: 16px; }
.move-panel > h3 { margin: 0; font-size: 20px; }
.move-panel > p { margin: 7px 0 16px; color: var(--muted); }

.cube-stage {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  background:
    linear-gradient(rgba(23, 35, 60, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 35, 60, .045) 1px, transparent 1px),
    linear-gradient(160deg, #fbfcff, #edf1f8);
  background-size: 28px 28px, 28px 28px, auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  -webkit-perspective: 1050px;
  perspective: 1050px;
  cursor: grab;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

.cube-stage.is-dragging { cursor: grabbing; }

.cube {
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--cube-size);
  height: var(--cube-size);
  margin: var(--cube-offset) 0 0 var(--cube-offset);
  -webkit-transform: rotateX(var(--view-x)) rotateY(var(--view-y));
  transform: rotateX(var(--view-x)) rotateY(var(--view-y));
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transition: -webkit-transform 180ms ease;
  transition: transform 180ms ease;
}

.cube-stage.is-dragging .cube { -webkit-transition: none; transition: none; }

.cube-face {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  padding: 7px;
  background: #0b1020;
  border: 2px solid #050811;
  border-radius: 9px;
  box-shadow: inset 0 0 16px rgba(255, 255, 255, .08), 0 0 1px #000;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.cube-face-f { -webkit-transform: translateZ(var(--cube-half)); transform: translateZ(var(--cube-half)); }
.cube-face-b { -webkit-transform: rotateY(180deg) translateZ(var(--cube-half)); transform: rotateY(180deg) translateZ(var(--cube-half)); }
.cube-face-r { -webkit-transform: rotateY(90deg) translateZ(var(--cube-half)); transform: rotateY(90deg) translateZ(var(--cube-half)); }
.cube-face-l { -webkit-transform: rotateY(-90deg) translateZ(var(--cube-half)); transform: rotateY(-90deg) translateZ(var(--cube-half)); }
.cube-face-u { -webkit-transform: rotateX(90deg) translateZ(var(--cube-half)); transform: rotateX(90deg) translateZ(var(--cube-half)); }
.cube-face-d { -webkit-transform: rotateX(-90deg) translateZ(var(--cube-half)); transform: rotateX(-90deg) translateZ(var(--cube-half)); }

.face-grid {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  width: 100%;
  height: 100%;
  gap: 5px;
  -webkit-transform-origin: center;
  transform-origin: center;
}

.cube-face.is-turning.turn-clockwise .face-grid { -webkit-animation: turn-face-clockwise 340ms cubic-bezier(.2, .72, .24, 1); animation: turn-face-clockwise 340ms cubic-bezier(.2, .72, .24, 1); }
.cube-face.is-turning.turn-counter .face-grid { -webkit-animation: turn-face-counter 340ms cubic-bezier(.2, .72, .24, 1); animation: turn-face-counter 340ms cubic-bezier(.2, .72, .24, 1); }
.cube-face.is-turning.turn-half .face-grid { -webkit-animation: turn-face-half 340ms cubic-bezier(.2, .72, .24, 1); animation: turn-face-half 340ms cubic-bezier(.2, .72, .24, 1); }

.sticker {
  position: relative;
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  width: calc(33.333% - 4px);
  height: calc(33.333% - 4px);
  margin: 2px;
  -webkit-box-align: center;
  -webkit-align-items: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  place-items: center;
  min-width: 0;
  min-height: 0;
  border: 1px solid rgba(0, 0, 0, .5);
  border-radius: 7px;
  box-shadow: inset 0 2px 5px rgba(255, 255, 255, .36), inset 0 -3px 5px rgba(0, 0, 0, .12);
}

@supports (display: grid) {
  .face-grid { display: grid; }
  .face-grid .sticker { display: grid; width: auto; height: auto; margin: 0; }
}

.sticker[data-sticker-color="white"] { background: #f7f7f2; }
.sticker[data-sticker-color="yellow"] { background: #ffd500; }
.sticker[data-sticker-color="green"] { background: #00a651; }
.sticker[data-sticker-color="blue"] { background: #0751b7; }
.sticker[data-sticker-color="red"] { background: #c41e3a; }
.sticker[data-sticker-color="orange"] { background: #f47b20; }

.sticker.is-centre::after {
  content: attr(data-face-letter);
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  width: 29px;
  height: 29px;
  place-items: center;
  -webkit-box-align: center;
  -webkit-align-items: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  color: #071020;
  background: rgba(255, 255, 255, .72);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 900;
  box-shadow: 0 1px 4px rgba(0, 0, 0, .2);
}

.cube-face.is-highlighted { box-shadow: 0 0 0 5px var(--accent), 0 0 28px rgba(255, 176, 32, .8); }

.cube-shadow {
  position: absolute;
  left: 50%;
  bottom: 30px;
  width: 260px;
  height: 42px;
  margin-left: -130px;
  background: radial-gradient(ellipse, rgba(12, 20, 39, .27), transparent 68%);
}

.turn-indicator {
  position: absolute;
  top: 16px;
  right: 16px;
  display: none;
  min-width: 74px;
  padding: 7px 12px;
  color: #fff;
  background: rgba(23, 35, 60, .92);
  border: 2px solid var(--accent);
  border-radius: 999px;
  font-size: 19px;
  font-weight: 900;
  text-align: center;
}

.turn-indicator.is-visible { display: block; }
.turn-indicator i { margin-left: 4px; color: var(--accent); font-style: normal; }

.cube-status {
  min-height: 50px;
  margin-top: 10px;
  padding: 12px 14px;
  color: var(--ink);
  background: #eef4ff;
  border-left: 5px solid #3b6fc4;
  border-radius: 9px;
}

.solved-banner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  margin-top: 10px;
  padding: 13px;
  color: #0b5d37;
  background: var(--success-soft);
  border: 2px solid #76bd98;
  border-radius: 10px;
}

.solved-banner > * + * { margin-left: 9px; }

.solved-banner[hidden] { display: none !important; }
.solved-banner span { display: grid; width: 28px; height: 28px; place-items: center; color: #fff; background: var(--success); border-radius: 50%; }

.move-controls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.move-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; padding: 5px; background: #e8edf4; border-radius: 11px; }
.move-pair button {
  min-height: 52px;
  color: var(--ink);
  background: #fff;
  border: 2px solid #aeb9c9;
  border-radius: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 20px;
  font-weight: 900;
  cursor: pointer;
  touch-action: manipulation;
}
.move-pair button:hover:not(:disabled) { color: #fff; background: var(--primary); border-color: var(--primary); }
.move-pair.is-current { background: #ffe4a6; box-shadow: 0 0 0 2px var(--accent); }

.face-key { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; margin: 14px 0; }
.face-key div { display: -webkit-box; display: -ms-flexbox; display: flex; align-items: baseline; }
.face-key dt { color: var(--primary-dark); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-weight: 900; }
.face-key dd { margin: 0 0 0 5px; color: var(--muted); font-size: 13px; }

.move-history-card { padding: 12px 14px; background: #fff; border: 1px solid var(--line); border-radius: 12px; }
.move-history-card > div { display: -webkit-box; display: -ms-flexbox; display: flex; align-items: center; justify-content: space-between; }
.move-history-card > div > * + * { margin-left: 10px; }
.move-history-card h3 { margin: 0; font-size: 16px; }
.move-history-card output { display: block; max-height: 82px; overflow: auto; color: var(--ink); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 14px; }

.solution-toolbar { margin-bottom: 18px; }
.guide { padding: 18px; background: linear-gradient(135deg, #f7f4ff, #fffaf0); border: 1px solid #dacff2; border-radius: 16px; }
.guide-step-card { display: -webkit-box; display: -ms-flexbox; display: flex; align-items: center; min-height: 112px; }
.guide-step-card > * + * { margin-left: 18px; }
.step-token { display: grid; width: 84px; height: 84px; flex: 0 0 84px; place-items: center; color: #fff; background: var(--ink); border: 5px solid var(--accent); border-radius: 22px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 30px; font-weight: 900; box-shadow: 0 10px 20px rgba(23, 35, 60, .16); }
.step-counter { margin: 0 0 3px; color: var(--primary-dark); font-size: 13px; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; }
.guide-step-card h3 { margin: 0; font-size: 22px; }
.guide-step-card p:last-child { margin: 6px 0 0; }

.guide-progress { height: 10px; margin: 16px 0; overflow: hidden; background: #dfe4ec; border-radius: 999px; }
.guide-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--primary), #8b6de2); border-radius: inherit; -webkit-transition: width 180ms ease; transition: width 180ms ease; }
.guide-actions { justify-content: center; }

.solution-sequence { margin-top: 16px; padding-top: 14px; border-top: 1px solid #d9d0eb; }
.solution-sequence summary { color: var(--primary-dark); font-weight: 800; cursor: pointer; }
.solution-sequence ol { display: -webkit-box; display: -ms-flexbox; display: flex; flex-wrap: wrap; margin: 9px -4px -4px; padding: 0; list-style: none; }
.solution-sequence li { min-width: 38px; margin: 4px; padding: 6px 9px; color: var(--ink); background: #fff; border: 1px solid #c9bfdc; border-radius: 7px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-weight: 800; text-align: center; }
.solution-sequence li.is-complete { color: #0b5d37; background: var(--success-soft); border-color: #76bd98; }
.solution-sequence li.is-current { color: #fff; background: var(--primary); border-color: var(--primary); }

.help-panel { display: -webkit-box; display: -ms-flexbox; display: flex; align-items: center; justify-content: space-between; }
.help-panel > * + * { margin-left: 26px; }
.help-panel h2 { margin: 0; font-size: 24px; }
.help-panel ul { margin: 12px 0 0; padding-left: 22px; }
.help-panel li + li { margin-top: 6px; }
.tip-card { display: -webkit-box; display: -ms-flexbox; display: flex; max-width: 420px; align-items: flex-start; padding: 16px; background: #fff5d9; border: 1px solid #efcd78; border-radius: 13px; }
.tip-card > * + * { margin-left: 12px; }
.tip-card > span { display: grid; width: 36px; height: 36px; flex: 0 0 36px; place-items: center; color: #fff; background: #a96800; border-radius: 50%; font-weight: 900; }
.tip-card h3 { margin: 0; font-size: 17px; }
.tip-card p { margin: 5px 0 0; }

@-webkit-keyframes turn-face-clockwise {
  from { -webkit-transform: rotate(0deg); transform: rotate(0deg); }
  to { -webkit-transform: rotate(90deg); transform: rotate(90deg); }
}
@keyframes turn-face-clockwise {
  from { -webkit-transform: rotate(0deg); transform: rotate(0deg); }
  to { -webkit-transform: rotate(90deg); transform: rotate(90deg); }
}
@-webkit-keyframes turn-face-counter { from { -webkit-transform: rotate(0deg); transform: rotate(0deg); } to { -webkit-transform: rotate(-90deg); transform: rotate(-90deg); } }
@keyframes turn-face-counter { from { -webkit-transform: rotate(0deg); transform: rotate(0deg); } to { -webkit-transform: rotate(-90deg); transform: rotate(-90deg); } }
@-webkit-keyframes turn-face-half { from { -webkit-transform: rotate(0deg); transform: rotate(0deg); } to { -webkit-transform: rotate(180deg); transform: rotate(180deg); } }
@keyframes turn-face-half { from { -webkit-transform: rotate(0deg); transform: rotate(0deg); } to { -webkit-transform: rotate(180deg); transform: rotate(180deg); } }

@media (max-width: 820px) {
  :root { --cube-size: 230px; --cube-half: 115px; --cube-offset: -115px; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 8px; margin-left: 0; }
  .play-layout { display: block; }
  .move-panel { min-width: 0; margin-top: 16px; margin-left: 0; }
  .cube-stage { min-height: 350px; }
  .setup-grid, .solution-toolbar { display: block; }
  .setup-grid > * + *, .solution-toolbar > * + * { margin-left: 0; }
  .setup-actions { margin-top: 14px; }
  .solution-toolbar .primary-button { margin-top: 14px; }
  .help-panel { display: block; }
  .tip-card { max-width: none; margin-top: 18px; margin-left: 0; }
}

@media (max-width: 520px) {
  :root { --cube-size: 190px; --cube-half: 95px; --cube-offset: -95px; }
  .game-header { padding: 9px 12px; }
  .mini-brand > span:last-child, .language-control label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .game-main { width: calc(100% - 20px); padding-top: 14px; }
  .hero-panel, .setup-panel, .play-panel, .solution-panel, .help-panel { padding: 19px 16px; border-radius: 15px; }
  .hero-panel { align-items: flex-start; }
  h1 { font-size: 29px; }
  .hero-copy { font-size: 15px; }
  .hero-badge { width: 70px; height: 70px; flex-basis: 70px; border-width: 4px; border-radius: 20px; }
  .hero-badge strong { font-size: 18px; }
  .hero-badge span { display: none; }
  .section-heading h2 { font-size: 22px; }
  .field-label select { width: 100%; min-width: 0; }
  .setup-actions .primary-button, .setup-actions .secondary-button { flex: 1 1 100%; }
  .scramble-row { display: block; }
  .scramble-row output { display: block; margin-top: 5px; margin-left: 0; }
  .cube-stage { min-height: 300px; }
  .cube-shadow { width: 200px; margin-left: -100px; bottom: 25px; }
  .move-panel { padding: 14px; }
  .move-controls { grid-template-columns: 1fr; }
  .face-key { grid-template-columns: repeat(2, 1fr); }
  .guide-step-card { align-items: flex-start; }
  .guide-step-card > * + * { margin-left: 12px; }
  .step-token { width: 62px; height: 62px; flex-basis: 62px; border-width: 4px; border-radius: 17px; font-size: 23px; }
  .guide-step-card h3 { font-size: 18px; }
  .guide-actions button { flex: 1 1 calc(50% - 9px); }
  .guide-actions [data-action="guide-next"], .guide-actions [data-action="guide-play"] { flex-basis: calc(50% - 9px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; -webkit-animation-duration: .01ms !important; animation-duration: .01ms !important; -webkit-transition-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media (forced-colors: active) {
  .sticker { forced-color-adjust: none; }
  .cube-face.is-highlighted { outline: 4px solid Highlight; }
}