.palette-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 4px;
  padding: 8px;
  background: var(--bg-soft);
  border-radius: var(--radius-md);
}

.palette-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--gap-sm);
}
.palette-header::before {
  display: none;
}
.palette-header-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.palette-header-title::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--orange);
  border-radius: 50%;
  flex-shrink: 0;
}
.palette-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--ink-2);
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-soft);
  transition: background 0.15s;
}
.palette-toggle:hover {
  background: var(--orange-pale);
}
.palette-toggle input[type="checkbox"] {
  width: 14px;
  height: 14px;
  cursor: pointer;
  accent-color: var(--orange);
}

.palette-cell-num {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.68rem;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  line-height: 1;
}
.palette-grid.show-numbers .palette-cell-num {
  display: flex;
}

.palette-cell {
  aspect-ratio: 1 / 1;
  position: relative;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  border-radius: 4px;
  box-shadow: 0 1px 2px rgba(58, 31, 10, 0.1);
}
.palette-cell:hover {
  transform: scale(1.25);
  z-index: 3;
  box-shadow: 0 4px 12px rgba(58, 31, 10, 0.25);
}

.palette-cell.closest { z-index: 2; }
.palette-cell.closest::after {
  content: '';
  position: absolute;
  inset: -5px;
  border: 3px solid var(--orange);
  border-radius: 8px;
  pointer-events: none;
  box-shadow: 0 0 0 2px var(--card), 0 0 12px rgba(255, 107, 26, 0.5);
}

.palette-cell.hover-target {
  transform: scale(1.35);
  z-index: 4;
  box-shadow: 0 6px 18px rgba(58, 31, 10, 0.3);
}
.palette-cell.hover-target::before {
  content: '';
  position: absolute;
  inset: -4px;
  border: 3px solid var(--ink);
  border-radius: 7px;
  pointer-events: none;
  box-shadow: 0 0 0 2px var(--card);
}

.palette-note {
  font-family: var(--font-jp);
  font-weight: 600;
  font-size: 0.78rem;
  color: var(--ink-3);
  margin-top: var(--gap-sm);
  line-height: 1.6;
}

@media (max-width: 600px) {
  .palette-grid { gap: 3px; padding: 6px; }
  .palette-note { font-size: 0.74rem; }
  .palette-cell-num { font-size: 0.6rem; }
  .palette-toggle { font-size: 0.74rem; padding: 3px 8px; }
}