.card-stats {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.card-message {
    min-height: 24px;
    margin-bottom: 12px;
    font-size: 0.88rem;
    color: var(--red);
}

.sieve-grid {
    display: grid;
    gap: 8px;
}

.cell {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1;
    background: var(--paper-2);
    border: 1.5px solid var(--card-border);
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, opacity 0.2s;
}

.cell:hover {
    border-color: var(--accent);
}

.cell.removed {
    background: transparent;
    border-style: dashed;
    color: var(--ink-faint);
    opacity: 0.35;
    cursor: default;
}