#game-root {
    --ooo-accent: #10B981;
    --ooo-accent-dark: #0e9c6f;
    --ooo-accent-light: #e3f9ef;
    --ooo-accent-border: #a7f3d0;
    border-radius: var(--kw-radius, 16px);
}

.ooo-wrap {
    max-width: 480px;
    margin: 0 auto;
    padding: 20px 16px 28px;
}

.ooo-loading,
.ooo-error {
    text-align: center;
    padding: 48px 16px;
}

.ooo-loading-icon,
.ooo-error-icon {
    font-size: 40px;
    margin-bottom: 10px;
}

.ooo-loading-icon {
    animation: ooo-pulse 1.2s ease-in-out infinite;
}

.ooo-loading-text {
    font-size: 15px;
    color: #666;
}

.ooo-error-text {
    font-size: 15px;
    font-weight: 700;
    color: #EF4444;
}

.ooo-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 18px;
}

.ooo-header-icon {
    display: flex;
    font-size: 30px;
    line-height: 1;
}

.ooo-header-icon img {
    display: block;
    height: 38px;
    width: auto;
}

.ooo-header-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--ooo-accent);
}

.ooo-levels {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.ooo-level-card {
    display: flex;
    flex-direction: column;
    border: none;
    border-radius: var(--kw-radius, 16px);
    background: #fff;
    padding: 0;
    cursor: pointer;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .08);
    transition: transform .15s ease, box-shadow .15s ease;
}

.ooo-level-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 18px rgba(0, 0, 0, .14);
}

.ooo-level-card:active {
    transform: translateY(-1px);
}

.ooo-level-thumb {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 88px;
    font-size: 36px;
    background: linear-gradient(135deg, var(--ooo-accent-light), var(--ooo-accent-border));
    background-size: cover;
    background-position: center;
}

.ooo-level-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 10px 16px;
}

.ooo-level-name {
    font-size: 15px;
    font-weight: 800;
    color: var(--kw-text, #2D2A32);
    text-align: center;
}

.ooo-level-age {
    font-size: 12px;
    font-weight: 700;
    color: var(--ooo-accent-dark);
    background: var(--ooo-accent-light);
    padding: 2px 10px;
    border-radius: 999px;
}

.ooo-level-row {
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.ooo-level-pill {
    background: var(--ooo-accent-light);
    color: var(--ooo-accent-dark);
    border-radius: 999px;
    padding: 5px 12px;
    font-weight: 700;
    font-size: 12px;
}

.ooo-change-level-btn {
    border: none;
    background: none;
    color: var(--ooo-accent-dark);
    text-decoration: underline;
    font-weight: 700;
    font-size: 12px;
    cursor: pointer;
    padding: 4px;
}

.ooo-change-level-btn:hover {
    color: var(--ooo-accent);
}

.ooo-stat-row {
    justify-content: center;
    gap: 8px;
    margin-bottom: 8px;
}

.ooo-stat {
    background: var(--ooo-accent-light);
    color: var(--ooo-accent-dark);
    border-radius: 999px;
    padding: 6px 14px;
    font-weight: 700;
    font-size: 14px;
}

.ooo-round-label {
    text-align: center;
    font-size: 13px;
    font-weight: 700;
    color: #888;
    margin-bottom: 14px;
}

.ooo-board {
    display: grid;
    gap: 8px;
}

.ooo-tile {
    aspect-ratio: 1;
    font-size: 30px;
    border-radius: 12px;
    border: none;
    background: #fff;
    box-shadow: 0 3px 0 rgba(0, 0, 0, .08);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .12s ease;
}

.ooo-tile:hover:not(:disabled) {
    transform: translateY(-2px) scale(1.03);
}

.ooo-tile.ooo-correct,
.ooo-tile.ooo-reveal {
    background: #dcfce7;
    box-shadow: 0 0 0 2px #22C55E inset;
}

.ooo-tile.ooo-wrong {
    background: #fee2e2;
    box-shadow: 0 0 0 2px #EF4444 inset;
    animation: ooo-shake .4s ease;
}

.ooo-done-card {
    text-align: center;
    background: #fff;
    border-radius: var(--kw-radius, 16px);
    padding: 32px 20px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, .07);
    animation: ooo-pop .3s ease;
}

.ooo-done-emoji {
    font-size: 56px;
    margin-bottom: 8px;
}

.ooo-done-title {
    font-size: 20px;
    font-weight: 800;
    color: var(--ooo-accent-dark);
    margin-bottom: 6px;
}

.ooo-done-score {
    font-size: 16px;
    font-weight: 600;
    color: #555;
    margin-bottom: 10px;
}

.ooo-done-stars {
    font-size: 24px;
    letter-spacing: 4px;
}

.ooo-done-share {
    justify-content: center;
    margin-top: 16px;
}

.ooo-done-actions {
    justify-content: center;
    margin-top: 20px;
}

.ooo-btn-primary,
.ooo-btn-secondary {
    border: none;
    padding: 12px 22px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 14px;
    cursor: pointer;
    transition: transform .1s ease;
}

.ooo-btn-primary {
    background: var(--ooo-accent);
    color: #fff;
    box-shadow: 0 3px 0 var(--ooo-accent-dark);
}

.ooo-btn-primary:hover {
    transform: translateY(-1px);
}

.ooo-btn-secondary {
    background: var(--ooo-accent-light);
    color: var(--ooo-accent-dark);
}

.ooo-btn-secondary:hover {
    background: var(--ooo-accent-border);
}

@keyframes ooo-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.15); opacity: .7; }
}

@keyframes ooo-pop {
    0% { transform: scale(.85); }
    100% { transform: scale(1); }
}

@keyframes ooo-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

@media (max-width: 380px) {
    .ooo-levels {
        grid-template-columns: 1fr;
    }
}