.mr-target, .mr-option {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
}

.mr-target {
    margin: 0 auto 16px;
    width: 160px;
    height: 160px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.mr-question { margin: 8px 0; text-align: center; color: var(--muted); }

.mr-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    max-width: 360px;
    margin: 0 auto;
}

.mr-option {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    cursor: pointer;
    aspect-ratio: 1;
}

.mr-option:hover { border-color: var(--accent); }
.mr-option:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.mr-option.is-correct { border-color: #22a06b; }
.mr-option.is-wrong { border-color: #e5484d; }

.mr-shape {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(4, 1fr);
    gap: 2px;
    width: 72px;
    height: 72px;
}

.mr-option .mr-shape { width: 48px; height: 48px; }

.mr-cell { background: transparent; }
.mr-cell.is-filled { background: var(--accent); border-radius: 2px; }

@media (min-width: 480px) {
    .mr-options { grid-template-columns: repeat(4, 1fr); }
}