.uttt {
  max-width: 620px;
}

.uttt-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.uttt-small {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  padding: 0.35rem;
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s;
}

.uttt-small--active {
  border-color: var(--accent);
}

.uttt-small--win {
  background: var(--accent-glow);
  border-color: var(--accent);
}

.uttt-cell {
  aspect-ratio: 1;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: clamp(0.8rem, 3.5vw, 1.4rem);
  font-weight: 700;
  line-height: 1;
  padding: 0;
  cursor: pointer;
  transition: border-color 0.15s;
}

.uttt-cell:hover:not(:disabled) {
  border-color: var(--accent);
}

.uttt-cell:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}

.uttt-cell:disabled {
  cursor: default;
}

.uttt-cell[data-mark="X"] {
  color: var(--accent);
}

.uttt-cell[data-mark="O"] {
  color: var(--player-two);
}

.uttt-small[data-result]:not([data-result=""])::after {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(13, 13, 20, 0.85);
  font-family: var(--font-mono);
  font-size: clamp(2rem, 10vw, 4.5rem);
  font-weight: 700;
  pointer-events: none;
}

.uttt-small[data-result="X"]::after {
  content: "X";
  color: var(--accent);
}

.uttt-small[data-result="O"]::after {
  content: "O";
  color: var(--player-two);
}

.uttt-small[data-result="draw"]::after {
  content: "–";
  color: var(--fg-muted);
}