/*
 * Porchlight Core: calculator styles.
 * Uses the Porchlight theme's design tokens (--c-*, --sp-*, --fs-*), with
 * fallback values so calculators also look right in other themes.
 * Loaded only on pages that contain a calculator.
 */

.calc *,
.calc *::before,
.calc *::after {
	box-sizing: border-box;
}

.calc input[type="text"],
.calc select,
.calc textarea {
	width: 100%;
	max-width: 100%;
	min-height: 46px;
	padding: 0.6rem 0.8rem;
	border: 1px solid var(--c-line-strong, #c9ced8);
	border-radius: var(--radius-sm, 6px);
	background: var(--c-surface, #ffffff);
	color: var(--c-ink, #151a24);
	font: inherit;
	font-size: 1rem;
	line-height: 1.4;
}

.calc input:focus,
.calc select:focus,
.calc textarea:focus {
	outline: 3px solid var(--c-focus, #2563eb);
	outline-offset: 1px;
	border-color: var(--c-brand, #0e5a4b);
}

.calc [aria-invalid="true"] {
	border-color: var(--c-danger, #b42318) !important;
}

.calc .field label {
	display: block;
	margin-bottom: 0.25rem;
	color: var(--c-ink, #151a24);
	font-size: 0.875rem;
	font-weight: 600;
}

.calc .field__hint {
	margin: 0.25rem 0 0;
	color: var(--c-muted, #5a6374);
	font-size: 0.8125rem;
	line-height: 1.5;
}

.calc .field__error {
	margin: 0.25rem 0 0;
	color: var(--c-danger, #b42318);
	font-size: 0.8125rem;
	font-weight: 600;
}

.calc .field__error:empty {
	display: none;
}

.calc .btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 44px;
	padding: 0.625rem 1.125rem;
	border: 1px solid var(--c-brand, #0e5a4b);
	border-radius: var(--radius-sm, 6px);
	background: var(--c-brand, #0e5a4b);
	color: var(--c-on-brand, #ffffff);
	font: inherit;
	font-size: 0.875rem;
	font-weight: 600;
	cursor: pointer;
}

.calc .btn--ghost {
	background: transparent;
	color: var(--c-brand, #0e5a4b);
	border-color: var(--c-line-strong, #c9ced8);
}

.calc .btn:focus-visible {
	outline: 3px solid var(--c-focus, #2563eb);
	outline-offset: 2px;
}

.calc__assumptions-title {
	margin: var(--sp-3, 0.75rem) 0 0.25rem;
}

.calc__assumptions {
	margin: 0;
	padding-left: 1.2em;
}

.calc__assumptions li {
	margin-bottom: 0.25rem;
}

.calc__reviewed {
	display: inline-block;
	margin-top: 0.25rem;
}

/* 16. Calculator ----------------------------------------------------------- */
.calc {
	margin-block: var(--sp-5, 1.5rem);
	border: 1px solid var(--c-line, #e2e5eb);
	border-radius: var(--radius-lg, 16px);
	background: var(--c-surface, #ffffff);
	box-shadow: var(--shadow, 0 1px 3px rgb(16 24 40 / 0.08), 0 4px 12px rgb(16 24 40 / 0.06));
	overflow: hidden;
}

.calc__head {
	display: flex;
	align-items: center;
	gap: var(--sp-3, 0.75rem);
	padding: var(--sp-4, 1rem) var(--sp-5, 1.5rem);
	border-bottom: 1px solid var(--c-line, #e2e5eb);
	background: var(--c-surface-2, #f5f6f8);
}

.calc__icon {
	display: grid;
	place-items: center;
	width: 36px;
	height: 36px;
	border-radius: var(--radius-sm, 6px);
	background: var(--c-brand, #0e5a4b);
	color: var(--c-on-brand, #ffffff);
	flex: none;
}

.calc__title {
	margin: 0;
	font-family: var(--font-sans, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif);
	font-size: var(--fs-base, 1.0625rem);
}

.calc__title a {
	color: var(--c-ink, #151a24);
}

.calc__body {
	display: grid;
}

.calc__form {
	padding: var(--sp-5, 1.5rem);
}

.calc__form .field {
	margin-bottom: var(--sp-4, 1rem);
}

.input-affix {
	position: relative;
	display: flex;
	align-items: center;
}

.input-affix input {
	font-variant-numeric: tabular-nums;
	font-size: var(--fs-md, 1.125rem);
	min-height: 48px;
}

.input-affix__text {
	position: absolute;
	color: var(--c-muted, #5a6374);
	font-weight: 600;
	pointer-events: none;
}

.has-prefix .input-affix__text {
	left: 0.85rem;
}

.calc .has-prefix input[type="text"],
.has-prefix input {
	padding-left: 1.75rem; /* Must beat ".calc input[type=text]" or the $ overlaps the digits. */
}

.has-suffix .input-affix__text {
	right: 0.85rem;
}

.calc .has-suffix input[type="text"],
.has-suffix input {
	padding-right: 2.2rem;
}

.field--textarea textarea {
	font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace);
	font-size: var(--fs-sm, 0.875rem);
}

.calc__actions {
	display: flex;
	gap: var(--sp-2, 0.5rem);
	margin-top: var(--sp-5, 1.5rem);
}

.calc__results {
	min-height: 220px;
	padding: var(--sp-5, 1.5rem);
	border-top: 1px solid var(--c-line, #e2e5eb);
	background: var(--c-tint, #f2f7f5);
}

.calc__placeholder {
	margin: 0;
	color: var(--c-muted, #5a6374);
}

.calc-result__primary {
	margin-bottom: var(--sp-4, 1rem);
}

.calc-result__label {
	display: block;
	color: var(--c-muted, #5a6374);
	font-size: var(--fs-sm, 0.875rem);
	font-weight: 600;
}

.calc-result__value {
	display: block;
	color: var(--c-brand, #0e5a4b);
	font-family: var(--font-serif, "Iowan Old Style", "Charter", "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif);
	font-size: clamp(2rem, 1.5rem + 2vw, 2.75rem);
	font-weight: 700;
	line-height: 1.15;
	font-variant-numeric: tabular-nums;
	overflow-wrap: anywhere;
}

.calc-result__rows {
	margin: 0 0 var(--sp-4, 1rem);
	padding: 0;
	list-style: none;
	font-size: var(--fs-sm, 0.875rem);
}

.calc-result__rows li {
	display: flex;
	justify-content: space-between;
	gap: var(--sp-4, 1rem);
	padding: 0.55rem 0;
	border-bottom: 1px dashed var(--c-line-strong, #c9ced8);
}

.calc-result__rows li span:last-child {
	color: var(--c-ink, #151a24);
	font-weight: 700;
	font-variant-numeric: tabular-nums;
	text-align: right;
}

.calc-result__note {
	margin: 0 0 var(--sp-3, 0.75rem);
	font-size: var(--fs-sm, 0.875rem);
	color: var(--c-text, #2a3140);
}

.calc-result__warn {
	margin: 0 0 var(--sp-3, 0.75rem);
	padding: var(--sp-3, 0.75rem);
	border-radius: var(--radius-sm, 6px);
	background: var(--c-warn-soft, #fffaeb);
	color: var(--c-warn, #93370d);
	font-size: var(--fs-sm, 0.875rem);
	font-weight: 600;
}

.calc-result__table {
	width: 100%;
	margin: var(--sp-3, 0.75rem) 0 0;
	border-collapse: collapse;
	font-size: var(--fs-xs, 0.8125rem);
	font-variant-numeric: tabular-nums;
}

.calc-result__table-wrap {
	overflow-x: auto;
	max-height: 320px;
	overflow-y: auto;
}

.calc-result__table th,
.calc-result__table td {
	padding: 0.4rem 0.5rem;
	border-bottom: 1px solid var(--c-line, #e2e5eb);
	text-align: right;
}

.calc-result__table th:first-child,
.calc-result__table td:first-child {
	text-align: left;
}

.calc-result__table thead th {
	position: sticky;
	top: 0;
	background: var(--c-tint, #f2f7f5);
}

.calc-bar {
	display: flex;
	height: 12px;
	margin: var(--sp-2, 0.5rem) 0 var(--sp-3, 0.75rem);
	border-radius: var(--radius-pill, 999px);
	overflow: hidden;
	background: var(--c-line, #e2e5eb);
}

.calc-bar span {
	display: block;
	height: 100%;
}

.calc-bar__legend {
	display: flex;
	flex-wrap: wrap;
	gap: var(--sp-2, 0.5rem) var(--sp-4, 1rem);
	margin: 0 0 var(--sp-3, 0.75rem);
	padding: 0;
	list-style: none;
	font-size: var(--fs-xs, 0.8125rem);
}

.calc-bar__legend i {
	display: inline-block;
	width: 10px;
	height: 10px;
	margin-right: 6px;
	border-radius: 2px;
	vertical-align: middle;
}

.calc__method {
	border-top: 1px solid var(--c-line, #e2e5eb);
	padding: var(--sp-4, 1rem) var(--sp-5, 1.5rem);
	font-size: var(--fs-sm, 0.875rem);
}

.calc__method summary {
	color: var(--c-ink, #151a24);
	font-weight: 700;
	cursor: pointer;
}

.calc__method p {
	margin: var(--sp-3, 0.75rem) 0 0;
}

.calc__disclaimer {
	margin: 0;
	padding: 0 var(--sp-5, 1.5rem) var(--sp-4, 1rem);
	color: var(--c-muted, #5a6374);
	font-size: var(--fs-xs, 0.8125rem);
}

@media (min-width: 768px) {
	.calc__body {
		grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
	}
	.calc__results {
		border-top: 0;
		border-left: 1px solid var(--c-line, #e2e5eb);
	}
	.calc--embedded .calc__body {
		grid-template-columns: minmax(0, 1fr);
	}
	.calc--embedded .calc__results {
		border-left: 0;
		border-top: 1px solid var(--c-line, #e2e5eb);
	}
}

@media (min-width: 1100px) {
	.calc--embedded .calc__body {
		grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
	}
	.calc--embedded .calc__results {
		border-top: 0;
		border-left: 1px solid var(--c-line, #e2e5eb);
	}
}

.featured-calc .calc {
	margin: 0;
}

/* Calculators embedded in articles keep their own compact heading. */
.entry-content .calc__title {
	margin: 0;
	font-family: var(--font-sans, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif);
	font-size: var(--fs-base, 1.0625rem);
	letter-spacing: 0;
}

.entry-content .calc__title a {
	color: var(--c-ink, #151a24);
	text-decoration: none;
}

.entry-content .calc__title a:hover {
	text-decoration: underline;
}

.entry-content .calc {
	font-size: var(--fs-base, 1.0625rem);
}