.signal-order__board-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
    gap: 1rem;
    width: min(100%, 29rem);
    margin: 1rem 0;
    margin-right: 0;
    margin-left: 0;
}

.signal-order__rule-summary {
    margin-top: 0.9rem;
    color: #4d647c;
    font-size: 1rem;
}

.signal-order__hero-preview {
    display: grid;
    place-items: center;
    align-content: center;
}

.signal-order__hero-preview .game-launch-preview-caption {
    width: 100%;
}

/* GameBoard's SignalR runtime dismisses this legacy countdown overlay. Signal Order owns
   its Watch transition, so the shared structural element remains intentionally inert here. */
.signal-order .game-board-equation-container-hover {
    display: none;
}

.signal-order__round-controls {
    width: 100%;
    text-align: center;
}

.signal-order__phase {
    margin: 0;
    color: #34516e;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.4;
    min-height: 2.8em;
}

.signal-order .game-board-level-attempts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    align-self: start;
    min-height: 92px;
}

.signal-order .game-board-level-attempts-metric {
    display: grid;
    align-content: center;
    gap: 0.35rem;
    min-width: 0;
    min-height: 92px;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(17, 140, 204, 0.16);
    border-radius: 1rem;
    background: linear-gradient(135deg, rgba(247, 251, 255, 0.98), rgba(235, 245, 255, 0.9));
    color: #23456d;
    text-align: center;
}

.signal-order .game-board-level-attempts-metric span {
    font-size: 0.875rem;
    font-weight: 650;
}

.signal-order .game-board-level-attempts-metric strong {
    color: #118ccc;
    font-size: clamp(1.35rem, 3vw, 1.8rem);
    font-variant-numeric: tabular-nums;
    line-height: 1;
}

.signal-order__actions {
    display: grid;
    place-items: center;
    min-height: 52px;
    margin-top: 0.75rem;
}

.signal-order__replay {
    grid-area: 1 / 1;
}

.signal-order__replay[hidden] {
    display: inline-flex;
    visibility: hidden;
    pointer-events: none;
}

.signal-order__grid {
    --signal-order-size: 3;
    display: grid;
    grid-template-columns: repeat(var(--signal-order-size), minmax(0, 1fr));
    width: 100%;
    aspect-ratio: 1;
    gap: clamp(0.45rem, 1.8vw, 0.75rem);
}

.signal-order__cell {
    display: grid;
    place-items: center;
    min-width: 44px;
    min-height: 44px;
    border: 2px solid #9db6d2;
    border-radius: 0.75rem;
    background: #f1f7fd;
    color: #152235;
    cursor: pointer;
    box-shadow: 0 0.25rem 0.625rem rgba(17, 75, 126, 0.05);
    touch-action: manipulation;
}

.signal-order__cell::after {
    font-size: clamp(1.25rem, 5vw, 2rem);
    font-weight: 800;
    line-height: 1;
}

.signal-order__cell[disabled] {
    cursor: default;
    opacity: 0.78;
}

.signal-order__cell.is-active {
    border-color: #0b6cc4;
    background: #0b6cc4;
    box-shadow: 0 0 0 0.25rem rgba(11, 108, 196, 0.18);
}

.signal-order__cell.is-active::after {
    content: "●";
    color: #fff;
}

.signal-order__cell.is-correct {
    border-color: #167943;
    background: #bce8cb;
    animation: signal-order-correct-pulse 200ms ease-out;
}

@keyframes signal-order-correct-pulse {
    50% {
        transform: scale(1.04);
        box-shadow: 0 0 0 0.25rem rgba(22, 121, 67, 0.18);
    }
}

.signal-order__cell.is-correct::after {
    content: "✓";
    color: #0c5b31;
}

.signal-order__cell.is-wrong {
    border-color: #b3213b;
    background: #ffd4dc;
}

.signal-order__cell.is-wrong::after {
    content: "×";
    color: #8e1429;
}

.signal-order__cell:focus-visible {
    outline: 3px solid #f18f01;
    outline-offset: 3px;
}

.signal-order__result-summary,
.signal-order__official-result,
.signal-order__guest-best {
    margin: 0.75rem 0 0;
    color: #40536c;
    line-height: 1.55;
    text-align: center;
}

.signal-order__official-result,
.signal-order__guest-best {
    color: #173f69;
    font-weight: 700;
}

@media (orientation: landscape) and (max-height: 520px) {
    .signal-order__board-content {
        gap: 0.625rem;
        margin: 0.625rem 0;
    }

    .signal-order__grid {
        width: min(100%, max(12rem, 50vh));
        gap: 0.4rem;
    }

    .signal-order__grid[data-dimension="5"] {
        width: min(100%, max(15.5rem, 63vh));
        gap: 0.35rem;
    }
}

@media (max-width: 991.98px) {
    .signal-order[data-board-state="start"] .game-format-hero {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 767.98px) {
    .signal-order .regular-gameplay-status-row .game-board-level-attempts {
        display: grid;
        grid-column: 1 / -1;
        grid-row: 2;
        min-height: 0;
    }

    .signal-order .game-board-level-attempts-metric {
        min-height: 72px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .signal-order__cell {
        animation: none;
        transition: none;
    }
}