/* === Tic-Tac-Toe Styles === */

.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
    min-height: calc(100vh - var(--nav-height));
    padding-top: calc(var(--nav-height) + var(--space-10));
}

.game-header {
    text-align: center;
}

/* ── Difficulty ── */
.difficulty-selector {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.difficulty-buttons {
    display: flex;
    gap: var(--space-2);
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    padding: 4px;
}

.difficulty-btn {
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    background: none;
    font-family: var(--font-body);
}

.difficulty-btn:hover {
    color: var(--text-primary);
}

.difficulty-btn--active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

/* ── Status ── */
.game-status {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    font-weight: var(--weight-medium);
    font-size: var(--text-sm);
    min-height: 44px;
    transition: all var(--transition-base);
}

.game-status--win {
    border-color: var(--success);
    background: var(--success-bg);
    color: var(--success);
}

.game-status--lose {
    border-color: var(--error);
    background: var(--error-bg);
    color: var(--error);
}

.game-status--draw {
    border-color: var(--warning);
    background: var(--warning-bg);
    color: var(--warning);
}

.status-icon {
    font-size: var(--text-lg);
}

/* ── Board ── */
.board-wrapper {
    position: relative;
    width: min(90vw, 360px);
    height: min(90vw, 360px);
}

.board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 6px;
    width: 100%;
    height: 100%;
    background: var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 6px;
    position: relative;
    z-index: 1;
}

.cell {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(2rem, 8vw, 3.5rem);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    font-family: var(--font-display);
    font-weight: var(--weight-black);
    color: var(--text-primary);
    user-select: none;
}

.cell:hover:not(.cell--taken):not(.cell--disabled) {
    background: var(--bg-card-hover);
    border-color: rgba(99, 102, 241, 0.3);
    transform: scale(1.02);
}

.cell--taken {
    cursor: default;
}

.cell--disabled {
    cursor: default;
    opacity: 0.7;
}

.cell--x {
    color: var(--accent-primary-bright);
    text-shadow: 0 0 20px var(--accent-primary-glow);
}

.cell--o {
    color: var(--accent-pink);
    text-shadow: 0 0 20px var(--accent-pink-glow);
}

.cell--win {
    background: rgba(52, 211, 153, 0.1);
    border-color: var(--success);
}

/* Cell animation */
@keyframes cellPop {
    0% {
        transform: scale(0);
        opacity: 0;
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.cell__mark {
    animation: cellPop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) both;
    display: inline-block;
}

/* ── Win Line ── */
.win-line {
    position: absolute;
    inset: 6px;
    z-index: 2;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.win-line--visible {
    opacity: 1;
}

@keyframes drawLine {
    from {
        stroke-dashoffset: 400;
    }

    to {
        stroke-dashoffset: 0;
    }
}

.win-line--visible line {
    stroke-dasharray: 400;
    animation: drawLine 0.5s ease-out both;
}

/* ── Scoreboard ── */
.scoreboard {
    display: flex;
    gap: var(--space-4);
}

.score-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    min-width: 80px;
}

.score-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    font-weight: var(--weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.score-value {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
}

.score-item--player .score-value {
    color: var(--accent-primary-bright);
}

.score-item--draw .score-value {
    color: var(--warning);
}

.score-item--ai .score-value {
    color: var(--accent-pink);
}

/* ── Actions ── */
.game-actions {
    display: flex;
    gap: var(--space-3);
}

@media (max-width: 480px) {
    .scoreboard {
        gap: var(--space-2);
    }

    .score-item {
        padding: var(--space-2) var(--space-4);
        min-width: 70px;
    }
}