/* Portal Core / calculator-core v1. Presentation helpers, not domain logic. */
.pc-calc {
    --pc-calc-bg: #f8fafc;
    --pc-calc-border: #dde3eb;
    --pc-calc-accent: #2563eb;
    --pc-calc-radius: 10px;
    box-sizing: border-box;
    padding: 1.5rem;
    margin-block: 2rem;
    background: var(--pc-calc-bg);
    border: 1px solid var(--pc-calc-border);
    border-radius: var(--pc-calc-radius);
}
.pc-calc *, .pc-calc *::before, .pc-calc *::after { box-sizing: border-box; }
.pc-calc__title { margin: 0 0 1rem; font-family: var(--pc-ui-heading-font, inherit); font-size: calc(1.35rem * var(--pc-ui-heading-scale, 1)); line-height: 1.35; }
.pc-calc__field { display: flex; flex-direction: column; gap: .4rem; margin-block: 1rem; }
.pc-calc__label { font-weight: 650; }
.pc-calc__input, .pc-calc__select {
    display: block; width: 100%; min-height: 2.7rem;
    padding: .5rem .7rem;
    border: 1px solid var(--pc-calc-border);
    border-radius: 6px;
    background: var(--pc-ui-bg,#fff);
    color: inherit;
    font: inherit;
}
.pc-calc__input:focus-visible, .pc-calc__select:focus-visible, .pc-calc__button:focus-visible {
    outline: 3px solid var(--pc-calc-accent);
    outline-offset: 2px;
}
.pc-calc__button {
    border: 0;
    border-radius: 6px;
    padding: .72rem 1.25rem;
    background: var(--pc-calc-accent);
    color: #fff;
    font: inherit;
    font-weight: 650;
    cursor: pointer;
}
.pc-calc__result { padding: 1rem; margin-top: 1rem; border-radius: 6px; background: var(--pc-ui-bg,#fff); border: 1px solid var(--pc-calc-border); }
.pc-calc__error { color: #a61b1b; font-weight: 600; }
.pc-calc__error[hidden] { display: none; }
.pc-calc__help { margin-top: .35rem; font-size: .92em; }
@media (max-width: 600px) {
    .pc-calc { padding: 1rem; }
}