@import url('../global.css');

:root {
  --title-color: var(--color-calcudoku);
}

.calcudoku-board {
  display: grid;
  gap: var(--spacing-md);
  padding: var(--spacing-sm);
}

.calcudoku-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  aspect-ratio: 1;
  padding: 6px;
  background: var(--logic-grid-frame-bg);
  border: 1px solid var(--logic-grid-frame-border);
  border-radius: var(--border-radius-md);
  transition:
    background 0.2s,
    border-color 0.2s;
}

.calcudoku-cell {
  position: relative;
  min-width: 0;
  min-height: 0;
  border: 1px solid var(--logic-grid-cell-border);
  background: var(--logic-grid-cell-bg);
  color: var(--logic-grid-ink);
  font: inherit;
  cursor: pointer;
}

.calcudoku-cell[data-cage='0'],
.calcudoku-cell[data-cage='1'],
.calcudoku-cell[data-cage='2'],
.calcudoku-cell[data-cage='3'],
.calcudoku-cell[data-cage='4'],
.calcudoku-cell[data-cage='5'],
.calcudoku-cell[data-cage='6'],
.calcudoku-cell[data-cage='7'] {
  border-width: 2px;
  border-color: var(--logic-grid-ink);
}

.calcudoku-cell.is-selected {
  background: color-mix(in srgb, var(--logic-grid-accent) 18%, var(--logic-grid-cell-bg));
  box-shadow: inset 0 0 0 2px var(--logic-grid-accent);
}

.calcudoku-value {
  font-size: clamp(1.5rem, 8vw, 3.5rem);
  font-weight: 800;
}

.calcudoku-cage-label {
  position: absolute;
  top: 0.15rem;
  left: 0.25rem;
  color: var(--logic-grid-accent-2);
  font-size: 0.7rem;
  font-weight: 700;
}

.calcudoku-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
}

.calcudoku-number,
.calcudoku-clear {
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--border-radius-md);
  background: var(--surface-2);
  color: var(--text-color);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.calcudoku-number:hover,
.calcudoku-number:focus-visible,
.calcudoku-clear:hover,
.calcudoku-clear:focus-visible {
  border-color: var(--color-calcudoku);
}