.r32-cube-tool {
  --r32-ink: #eef2e8;
  --r32-muted: #aab7aa;
  --r32-panel: #17201d;
  --r32-panel-deep: #0f1614;
  --r32-line: rgba(221, 236, 216, 0.16);
  --r32-accent: #d5f36b;
  --r32-accent-ink: #132018;
  display: grid;
  gap: 1.25rem;
  padding: clamp(1rem, 2.8vw, 2rem);
  overflow: hidden;
  border: 1px solid var(--r32-line);
  border-radius: 1.35rem;
  color: var(--r32-ink);
  background:
    radial-gradient(
      circle at 12% 0%,
      rgba(213, 243, 107, 0.12),
      transparent 34%
    ),
    linear-gradient(135deg, #202c26, var(--r32-panel-deep) 62%);
  box-shadow: 0 1.4rem 3rem rgba(6, 13, 10, 0.24);
  font-family: "Avenir Next", "Noto Sans SC", sans-serif;
}

.r32-cube-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.25rem;
}

.r32-cube-heading h2,
.r32-cube-controls h3,
.r32-cube-history h3 {
  margin: 0;
}

.r32-cube-heading h2 {
  letter-spacing: -0.04em;
  font-size: clamp(1.55rem, 3vw, 2.25rem);
}

.r32-cube-heading p,
.r32-cube-controls-heading p {
  max-width: 38rem;
  margin: 0;
  color: var(--r32-muted);
  line-height: 1.65;
}

.r32-cube-kicker {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--r32-accent);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.r32-cube-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
  gap: 1rem;
  align-items: start;
}

.r32-cube-stage,
.r32-cube-controls {
  min-width: 0;
  border: 1px solid var(--r32-line);
  border-radius: 1rem;
  background: rgba(9, 15, 13, 0.46);
}

.r32-cube-stage {
  display: grid;
  gap: 1rem;
  padding: clamp(0.8rem, 2vw, 1.35rem);
}

.r32-cube-board-wrap {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 21rem;
  padding: clamp(0.6rem, 3vw, 1.5rem);
  overflow: hidden;
  border: 1px solid rgba(221, 236, 216, 0.1);
  border-radius: 0.8rem;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.04), transparent 48%),
    repeating-linear-gradient(
      135deg,
      rgba(213, 243, 107, 0.035) 0 1px,
      transparent 1px 15px
    ),
    #111916;
}

.r32-cube-board {
  display: block;
  width: min(100%, 34rem);
  height: auto;
  touch-action: none;
  user-select: none;
}

.r32-cube-face {
  outline: none;
  cursor: grab;
}

.r32-cube-face:active {
  cursor: grabbing;
}

.r32-cube-face:focus-visible .r32-cube-sticker {
  stroke: var(--r32-accent);
  stroke-width: 0.08;
}

.r32-cube-sticker {
  stroke: #101714;
  stroke-width: 0.07;
  transition:
    transform 160ms ease,
    filter 160ms ease;
}

.r32-cube-face:hover .r32-cube-sticker {
  filter: brightness(1.08) saturate(1.08);
}

.r32-cube-face-label {
  fill: rgba(16, 23, 20, 0.55);
  font:
    800 0.48px/1 "Avenir Next",
    "Noto Sans SC",
    sans-serif;
  pointer-events: none;
}

.r32-cube-hint {
  width: min(100%, 34rem);
  margin: 0.1rem 0 0;
  color: var(--r32-muted);
  font-size: 0.78rem;
  line-height: 1.55;
  text-align: center;
}

.r32-cube-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.r32-cube-tool button {
  min-height: 2.75rem;
  border-radius: 0.68rem;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.r32-cube-tool button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.r32-cube-tool button:focus-visible {
  outline: 2px solid var(--r32-accent);
  outline-offset: 2px;
}

.r32-cube-tool button:disabled {
  cursor: not-allowed;
  opacity: 0.44;
}

.r32-cube-action {
  padding: 0.55rem 0.9rem;
}

.r32-cube-tool .primary-btn {
  border: 1px solid var(--r32-accent);
  color: var(--r32-accent-ink);
  background: var(--r32-accent);
}

.r32-cube-tool .secondary-btn {
  border: 1px solid rgba(221, 236, 216, 0.24);
  color: var(--r32-ink);
  background: rgba(221, 236, 216, 0.07);
}

.r32-cube-status {
  min-height: 1.45rem;
  padding: 0.7rem 0.85rem;
  border-left: 3px solid var(--r32-accent);
  color: var(--r32-muted);
  background: rgba(213, 243, 107, 0.06);
  font-size: 0.82rem;
  line-height: 1.5;
}

.r32-cube-status[data-tone="success"] {
  color: #d8f7b4;
}

.r32-cube-status[data-tone="error"] {
  border-left-color: #ef7664;
  color: #ffb4a7;
  background: rgba(239, 118, 100, 0.08);
}

.r32-cube-controls {
  display: grid;
  gap: 1rem;
  padding: clamp(0.9rem, 2vw, 1.25rem);
}

.r32-cube-controls-heading {
  display: grid;
  gap: 0.3rem;
}

.r32-cube-move-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.r32-cube-move-group {
  display: grid;
  grid-template-columns: 1.55rem repeat(3, minmax(0, 1fr));
  gap: 0.3rem;
  align-items: center;
  padding: 0.34rem;
  border: 1px solid rgba(221, 236, 216, 0.1);
  border-radius: 0.7rem;
  background: rgba(255, 255, 255, 0.035);
}

.r32-cube-move-group > span {
  color: var(--r32-accent);
  font:
    800 0.82rem/1 "Iowan Old Style",
    Georgia,
    serif;
  text-align: center;
}

.r32-cube-move {
  min-height: 2.75rem !important;
  padding: 0.25rem 0.18rem;
  border: 1px solid rgba(221, 236, 216, 0.15);
  color: var(--r32-ink);
  background: rgba(221, 236, 216, 0.08);
  font-size: 0.78rem !important;
}

.r32-cube-move:hover:not(:disabled) {
  border-color: var(--r32-accent);
  background: rgba(213, 243, 107, 0.14);
}

.r32-cube-history {
  min-width: 0;
  padding-top: 0.25rem;
  border-top: 1px solid var(--r32-line);
}

.r32-cube-history-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
}

.r32-cube-history-heading span {
  color: var(--r32-muted);
  font-size: 0.78rem;
}

.r32-cube-history ol {
  display: grid;
  gap: 0.35rem;
  max-height: 13rem;
  margin: 0.65rem 0 0;
  padding: 0 0.2rem 0 1.55rem;
  overflow: auto;
  color: var(--r32-muted);
}

.r32-cube-history li {
  display: flex;
  gap: 0.45rem;
  align-items: baseline;
  min-width: 0;
  font-size: 0.78rem;
}

.r32-cube-history li span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.r32-cube-history code {
  color: var(--r32-ink);
  font:
    0.78rem/1.3 "SFMono-Regular",
    Consolas,
    monospace;
  white-space: nowrap;
}

.r32-cube-history small {
  margin-left: auto;
  color: #728277;
}

.r32-cube-history-empty {
  list-style: none;
  margin-left: -1.55rem;
}

.r32-cube-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  color: #77887c;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
}

@media (max-width: 820px) {
  .r32-cube-heading,
  .r32-cube-layout {
    display: grid;
    grid-template-columns: 1fr;
    align-items: start;
  }
}

@media (max-width: 540px) {
  .r32-cube-tool {
    border-radius: 0.95rem;
  }

  .r32-cube-board-wrap {
    min-height: 0;
    padding: 0.55rem 0.25rem 0.8rem;
  }

  .r32-cube-move-grid {
    grid-template-columns: 1fr;
  }

  .r32-cube-toolbar > button {
    flex: 1 1 calc(50% - 0.55rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .r32-cube-tool,
  .r32-cube-tool * {
    scroll-behavior: auto;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}