/* All selectors are scoped to the NumHub calculator namespace. */
.numhub,
.numhub * {
	box-sizing: border-box;
}

.numhub {
	--numhub-ink: #17243a;
	--numhub-muted: #5b687b;
	--numhub-border: #dce3ec;
	--numhub-panel: #f6f8fb;
	--numhub-accent: #315f9f;
	--numhub-accent-dark: #244a7e;
	--numhub-soft-accent: #edf3fb;
	--numhub-error: #a32626;
	width: 100%;
	max-width: 100%;
	margin: 1.5rem 0;
	padding: clamp(1rem, 3vw, 2rem);
	border: 1px solid var(--numhub-border);
	border-radius: 18px;
	background: #fff;
	color: var(--numhub-ink);
	font: inherit;
	line-height: 1.6;
	box-shadow: 0 8px 28px rgba(23, 36, 58, 0.06);
}

.numhub__intro {
	max-width: 760px;
	margin-bottom: 1.5rem;
}

.numhub__eyebrow {
	margin: 0 0 0.35rem;
	color: var(--numhub-accent);
	font-size: 0.75rem;
	font-weight: 750;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.numhub__title,
.numhub__section-title {
	margin: 0 0 0.65rem;
	color: var(--numhub-ink);
	font-size: clamp(1.55rem, 3vw, 2.15rem);
	font-weight: 750;
	line-height: 1.2;
}

.numhub__lede {
	margin: 0;
	color: var(--numhub-muted);
	font-size: 1rem;
}

.numhub__form {
	padding: clamp(1rem, 2.5vw, 1.5rem);
	border: 1px solid var(--numhub-border);
	border-radius: 14px;
	background: #fff;
}

.numhub__form-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 1rem 1.15rem;
}

.numhub__field {
	min-width: 0;
}

.numhub__field--wide {
	grid-column: 1 / -1;
}

.numhub__label {
	display: block;
	margin: 0 0 0.4rem;
	color: var(--numhub-ink);
	font-size: 0.94rem;
	font-weight: 700;
}

.numhub__input,
.numhub__select {
	display: block;
	width: 100%;
	min-height: 48px;
	margin: 0;
	padding: 0.7rem 0.8rem;
	border: 1px solid #aebaca;
	border-radius: 9px;
	background: #fff;
	color: var(--numhub-ink);
	font: inherit;
	font-size: 1rem;
	line-height: 1.4;
	box-shadow: none;
}

.numhub__input:focus-visible,
.numhub__select:focus-visible,
.numhub__button:focus-visible,
.numhub__faq summary:focus-visible,
.numhub a:focus-visible {
	outline: 3px solid #86b7f5;
	outline-offset: 2px;
}

.numhub__help {
	margin: 0.35rem 0 0;
	color: var(--numhub-muted);
	font-size: 0.82rem;
	line-height: 1.45;
}

.numhub__form-actions,
.numhub__result-actions {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.65rem;
	margin-top: 1.25rem;
}

.numhub__button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 46px;
	margin: 0;
	padding: 0.65rem 1.05rem;
	border: 1px solid transparent;
	border-radius: 9px;
	font: inherit;
	font-size: 0.94rem;
	font-weight: 700;
	line-height: 1.3;
	text-decoration: none;
	cursor: pointer;
	transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}

.numhub__button--primary {
	border-color: var(--numhub-accent);
	background: var(--numhub-accent);
	color: #fff;
}

.numhub__button--primary:hover {
	border-color: var(--numhub-accent-dark);
	background: var(--numhub-accent-dark);
	color: #fff;
}

.numhub__button--secondary {
	border-color: var(--numhub-border);
	background: #fff;
	color: var(--numhub-ink);
}

.numhub__button--secondary:hover {
	border-color: #aebaca;
	background: var(--numhub-panel);
	color: var(--numhub-ink);
}

.numhub__button--small {
	min-height: 40px;
	padding: 0.5rem 0.8rem;
	font-size: 0.86rem;
}

.numhub__error {
	margin: 0.9rem 0 0;
	padding: 0.7rem 0.85rem;
	border-left: 4px solid var(--numhub-error);
	border-radius: 5px;
	background: #fff3f3;
	color: var(--numhub-error);
	font-weight: 650;
}

.numhub__privacy-note {
	margin: 1rem 0 0;
	color: var(--numhub-muted);
	font-size: 0.82rem;
}

.numhub__results {
	margin-top: 1.7rem;
	padding-top: 1.5rem;
	border-top: 1px solid var(--numhub-border);
}

.numhub__results-header {
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	gap: 1rem;
	margin-bottom: 1rem;
}

.numhub__results-header .numhub__section-title {
	margin-bottom: 0;
}

.numhub__result-actions {
	margin-top: 0;
}

.numhub__method-banner {
	margin: 0 0 0.8rem;
	padding: 0.65rem 0.85rem;
	border: 1px solid #d7e3f3;
	border-radius: 8px;
	background: var(--numhub-soft-accent);
	color: #29476e;
	font-size: 0.87rem;
}

.numhub__notice {
	margin: 0 0 1rem;
	color: var(--numhub-muted);
	font-size: 0.84rem;
}

.numhub__status {
	min-height: 1.2rem;
	margin: 0 0 0.65rem;
	color: var(--numhub-accent-dark);
	font-size: 0.85rem;
}

.numhub__result-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 0.9rem;
}

.numhub__result-card {
	min-width: 0;
	padding: 1rem;
	border: 1px solid var(--numhub-border);
	border-radius: 12px;
	background: #fff;
}

.numhub__card-title {
	margin: 0 0 0.55rem;
	color: var(--numhub-muted);
	font-size: 0.88rem;
	font-weight: 700;
}

.numhub__card-number {
	margin: 0;
	color: var(--numhub-accent-dark);
	font-size: clamp(2rem, 5vw, 2.6rem);
	font-weight: 800;
	line-height: 1.1;
	font-variant-numeric: tabular-nums;
}

.numhub__card-number--na {
	font-size: 1.3rem;
}

.numhub__card-note {
	margin: 0.35rem 0 0;
	color: var(--numhub-muted);
	font-size: 0.82rem;
}

.numhub__interpretation {
	margin: 0.8rem 0 0;
	color: var(--numhub-ink);
	font-size: 0.9rem;
}

.numhub__breakdown {
	margin-top: 0.85rem;
	padding-top: 0.7rem;
	border-top: 1px solid var(--numhub-border);
}

.numhub__breakdown summary,
.numhub__faq summary {
	color: var(--numhub-accent-dark);
	font-weight: 700;
	cursor: pointer;
}

.numhub__breakdown-content {
	padding-top: 0.6rem;
}

.numhub__breakdown-line {
	margin: 0.35rem 0;
	color: var(--numhub-muted);
	font-size: 0.83rem;
	overflow-wrap: anywhere;
}

.numhub__flags {
	margin-top: 1rem;
	padding: 1rem;
	border: 1px solid var(--numhub-border);
	border-radius: 12px;
	background: var(--numhub-panel);
}

.numhub__subheading {
	margin: 1.3rem 0 0.55rem;
	color: var(--numhub-ink);
	font-size: 1.12rem;
	font-weight: 750;
}

.numhub__flags .numhub__subheading {
	margin-top: 0;
}

.numhub__flag-heading {
	margin: 0.8rem 0 0.25rem;
	color: var(--numhub-ink);
	font-size: 0.93rem;
}

.numhub__flag-list,
.numhub__method-list,
.numhub__example-list,
.numhub__related-list {
	margin: 0.4rem 0 0.85rem;
	padding-left: 1.35rem;
}

.numhub__flag-list li,
.numhub__method-list li,
.numhub__example-list li,
.numhub__related-list li {
	margin: 0.35rem 0;
}

.numhub__flag-note {
	margin: 0.45rem 0;
	color: var(--numhub-muted);
	font-size: 0.9rem;
}

.numhub__guide {
	margin-top: 2rem;
	padding-top: 1.5rem;
	border-top: 1px solid var(--numhub-border);
}

.numhub__guide p {
	color: var(--numhub-ink);
}

.numhub__faq-list {
	border-top: 1px solid var(--numhub-border);
}

.numhub__faq {
	padding: 0.85rem 0;
	border-bottom: 1px solid var(--numhub-border);
}

.numhub__faq summary {
	color: var(--numhub-ink);
}

.numhub__faq p {
	margin: 0.65rem 0 0;
	color: var(--numhub-muted);
}

.numhub__related-list a {
	color: var(--numhub-accent-dark);
	text-decoration: underline;
	text-underline-offset: 0.15em;
}

@media (max-width: 640px) {
	.numhub {
		padding: 1rem;
		border-radius: 12px;
	}

	.numhub__form-grid,
	.numhub__result-grid {
		grid-template-columns: minmax(0, 1fr);
	}

	.numhub__results-header {
		align-items: flex-start;
		flex-direction: column;
	}

	.numhub__result-actions {
		width: 100%;
	}

	.numhub__button--small {
		flex: 1 1 auto;
	}
}

@media (prefers-reduced-motion: reduce) {
	.numhub *,
	.numhub *::before,
	.numhub *::after {
		scroll-behavior: auto !important;
		transition-duration: 0.01ms !important;
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
	}
}

@media print {
	body.numhub-print-mode * {
		visibility: hidden !important;
	}

	body.numhub-print-mode [data-numhub-printing="true"] .numhub__results,
	body.numhub-print-mode [data-numhub-printing="true"] .numhub__results * {
		visibility: visible !important;
	}

	body.numhub-print-mode [data-numhub-printing="true"] .numhub__results {
		position: absolute !important;
		inset: 0 auto auto 0 !important;
		width: 100% !important;
		margin: 0 !important;
		padding: 1rem !important;
		border: 0 !important;
		background: #fff !important;
		box-shadow: none !important;
	}

	body.numhub-print-mode [data-numhub-printing="true"] .numhub__result-actions,
	body.numhub-print-mode [data-numhub-printing="true"] .numhub__status {
		display: none !important;
	}

	body.numhub-print-mode [data-numhub-printing="true"] .numhub__result-card,
	body.numhub-print-mode [data-numhub-printing="true"] .numhub__flags {
		break-inside: avoid;
		box-shadow: none !important;
	}
}