/* Tic Tac Toe */

.tt-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    user-select: none;
}

.tt-modes {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.tt-mode {
    padding: 0.5rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-card-bg);
    color: var(--color-text);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.tt-mode:hover { border-color: var(--color-primary-dark); }
.tt-mode.active {
    background: var(--color-primary);
    border-color: var(--color-primary-dark);
}

.tt-mode:focus-visible,
.tt-btn:focus-visible,
.tt-cell:focus-visible {
    outline: 3px solid var(--color-text);
    outline-offset: 2px;
}

.tt-status {
    font-size: 1.15rem;
    font-weight: 700;
    min-height: 1.5em;
    margin: 0;
    text-align: center;
}

.tt-board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    width: min(340px, 84vw);
    aspect-ratio: 1;
}

.tt-cell {
    /* Card white with a defined edge: the page gradient is close enough to
       --color-bg-secondary that flat tinted cells read as one block. */
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-card-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    font-size: clamp(2.4rem, 14vw, 4rem);
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 120ms ease;
}

.tt-cell:hover:not(.taken) {
    background: var(--color-primary);
    border-color: var(--color-primary-dark);
}
.tt-cell.taken { cursor: default; }

.tt-cell.x { color: var(--cat-speed); }
.tt-cell.o { color: var(--color-accent); }

.tt-cell.win {
    background: var(--color-primary);
    box-shadow: inset 0 0 0 3px var(--color-primary-dark);
}

.tt-score {
    display: flex;
    gap: 1.25rem;
    font-weight: 600;
    color: var(--color-text-light);
    font-variant-numeric: tabular-nums;
}

.tt-btn {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    background: var(--color-primary);
    color: var(--color-text);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.tt-btn:hover { background: var(--color-primary-dark); }

/* Once the board is decided, the only sensible action is a new game. */
.state-result .tt-cell:not(.win) { opacity: 0.75; }
.state-result .tt-cell { pointer-events: none; }