.numcalc {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
}
.numcalc h2 { margin-top: 0; }
.numcalc-fields { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1rem 0; }
.numcalc-fields label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.875rem; color: var(--text-secondary); }
.numcalc-fields input {
    width: 5.5rem;
    padding: 0.6rem 0.75rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}
.numcalc-fields input.numcalc-year { width: 7rem; }
.numcalc-result { margin-top: 1rem; }
.numcalc-number { font-size: 1.25rem; font-weight: 700; color: var(--accent-primary); }
.numcalc-note { font-size: 0.8125rem; color: var(--text-tertiary); }
.numcalc-error { color: var(--text-secondary); }