.cffc-calculator {
	--cffc-bg: #f4f6f9;
	--cffc-card: #ffffff;
	--cffc-card-soft: #f8fafc;
	--cffc-text: #172033;
	--cffc-muted: #647084;
	--cffc-border: #d9e0ea;
	--cffc-primary: #3d4656;
	--cffc-primary-strong: #252c38;
	--cffc-accent: #7d8796;
	--cffc-good: #1f8a5b;
	--cffc-warning: #b45f06;
	--cffc-danger: #b3261e;
	--cffc-shadow: 0 18px 55px rgba(25, 35, 50, 0.12);
	--cffc-radius: 22px;
	--cffc-radius-small: 14px;
	--cffc-focus: 0 0 0 3px rgba(92, 107, 130, 0.35);
	color: var(--cffc-text);
	font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	max-width: 100%;
}

.cffc-calculator * {
	box-sizing: border-box;
}

.cffc-calculator button,
.cffc-calculator input,
.cffc-calculator select {
	font: inherit;
}

.cffc-shell {
	background: linear-gradient(135deg, var(--cffc-bg), #ffffff 46%, #eef2f6);
	border: 1px solid var(--cffc-border);
	border-radius: var(--cffc-radius);
	box-shadow: var(--cffc-shadow);
	margin: 0 auto;
	max-width: 1220px;
	overflow: hidden;
	padding: 18px;
}

.cffc-header {
	align-items: flex-start;
	display: flex;
	flex-direction: column;
	gap: 14px;
	justify-content: space-between;
	margin-bottom: 18px;
	padding: 4px;
}

.cffc-kicker {
	color: var(--cffc-muted);
	font-size: 0.78rem;
	font-weight: 800;
	letter-spacing: 0.1em;
	line-height: 1.2;
	margin: 0 0 6px;
	text-transform: uppercase;
}

.cffc-title {
	color: var(--cffc-text);
	font-size: clamp(1.6rem, 5vw, 2.8rem);
	font-weight: 850;
	letter-spacing: -0.04em;
	line-height: 1.05;
	margin: 0;
}

.cffc-theme-toggle,
.cffc-button {
	align-items: center;
	border: 0;
	border-radius: 999px;
	cursor: pointer;
	display: inline-flex;
	font-weight: 800;
	gap: 8px;
	justify-content: center;
	line-height: 1;
	min-height: 44px;
	padding: 12px 16px;
	transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
	user-select: none;
}

.cffc-theme-toggle {
	background: var(--cffc-card);
	border: 1px solid var(--cffc-border);
	box-shadow: 0 8px 22px rgba(20, 30, 45, 0.08);
	color: var(--cffc-primary);
}

.cffc-theme-toggle:hover,
.cffc-button:hover {
	transform: translateY(-1px);
}

.cffc-theme-toggle:focus-visible,
.cffc-button:focus-visible,
.cffc-input:focus-visible,
.cffc-switch input:focus-visible + span {
	box-shadow: var(--cffc-focus);
	outline: none;
}

.cffc-grid {
	display: grid;
	gap: 14px;
	grid-template-columns: 1fr;
}

.cffc-card {
	background: rgba(255, 255, 255, 0.88);
	border: 1px solid var(--cffc-border);
	border-radius: var(--cffc-radius);
	box-shadow: 0 12px 34px rgba(25, 35, 50, 0.08);
	padding: 16px;
}

.cffc-card-heading {
	align-items: center;
	display: flex;
	gap: 10px;
	margin-bottom: 16px;
}

.cffc-card-heading h3 {
	color: var(--cffc-text);
	font-size: 1.05rem;
	font-weight: 850;
	letter-spacing: -0.025em;
	line-height: 1.2;
	margin: 0;
}

.cffc-card-icon {
	align-items: center;
	background: linear-gradient(135deg, var(--cffc-primary), var(--cffc-accent));
	border-radius: 13px;
	color: #fff;
	display: inline-flex;
	font-size: 1rem;
	height: 38px;
	justify-content: center;
	width: 38px;
}

.cffc-field-row,
.cffc-tier-grid {
	display: grid;
	gap: 12px;
	grid-template-columns: 1fr;
}

.cffc-field-row + .cffc-field-row,
.cffc-conditional,
.cffc-field + .cffc-field {
	margin-top: 12px;
}

.cffc-field label {
	color: var(--cffc-text);
	display: inline-block;
	font-size: 0.9rem;
	font-weight: 800;
	line-height: 1.35;
	margin-bottom: 7px;
}

.cffc-input {
	appearance: none;
	background: var(--cffc-card-soft);
	border: 1px solid var(--cffc-border);
	border-radius: var(--cffc-radius-small);
	color: var(--cffc-text);
	display: block;
	font-weight: 700;
	line-height: 1.25;
	min-height: 48px;
	padding: 12px 13px;
	transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
	width: 100%;
}

select.cffc-input {
	background-image: linear-gradient(45deg, transparent 50%, var(--cffc-muted) 50%), linear-gradient(135deg, var(--cffc-muted) 50%, transparent 50%);
	background-position: calc(100% - 18px) 20px, calc(100% - 12px) 20px;
	background-repeat: no-repeat;
	background-size: 6px 6px, 6px 6px;
	padding-right: 36px;
}

.cffc-input:hover {
	border-color: #aeb8c5;
}

.cffc-input.cffc-invalid {
	border-color: var(--cffc-danger);
}

.cffc-affix-field {
	align-items: center;
	display: flex;
	gap: 8px;
}

.cffc-affix-field .cffc-input {
	flex: 1;
}

.cffc-affix-field span {
	background: var(--cffc-card-soft);
	border: 1px solid var(--cffc-border);
	border-radius: var(--cffc-radius-small);
	color: var(--cffc-muted);
	font-weight: 900;
	min-height: 48px;
	min-width: 48px;
	padding: 13px 10px;
	text-align: center;
}

.cffc-toggle-line {
	align-items: center;
	background: var(--cffc-card-soft);
	border: 1px solid var(--cffc-border);
	border-radius: var(--cffc-radius-small);
	display: flex;
	gap: 12px;
	padding: 12px;
}

.cffc-toggle-line > span:last-child {
	font-weight: 800;
}

.cffc-switch {
	display: inline-block;
	height: 28px;
	position: relative;
	width: 54px;
}

.cffc-switch input {
	height: 1px;
	left: 0;
	opacity: 0;
	position: absolute;
	top: 0;
	width: 1px;
}

.cffc-switch span {
	background: #b9c2cf;
	border-radius: 999px;
	cursor: pointer;
	inset: 0;
	position: absolute;
	transition: background 160ms ease;
}

.cffc-switch span::before {
	background: #fff;
	border-radius: 50%;
	box-shadow: 0 3px 8px rgba(0, 0, 0, 0.22);
	content: "";
	height: 22px;
	left: 3px;
	position: absolute;
	top: 3px;
	transition: transform 160ms ease;
	width: 22px;
}

.cffc-switch input:checked + span {
	background: var(--cffc-primary);
}

.cffc-switch input:checked + span::before {
	transform: translateX(26px);
}

.cffc-results {
	background: linear-gradient(165deg, #ffffff, #f4f6f9);
	position: relative;
}

.cffc-results-top {
	align-items: center;
	display: grid;
	gap: 16px;
	grid-template-columns: 1fr;
}

.cffc-total {
	color: var(--cffc-primary-strong);
	font-size: clamp(2.1rem, 10vw, 3.4rem);
	font-weight: 950;
	letter-spacing: -0.06em;
	line-height: 1;
	margin: 0;
}

.cffc-chart {
	background: var(--cffc-card);
	border: 1px solid var(--cffc-border);
	border-radius: 50%;
	justify-self: start;
	max-width: 124px;
}

.cffc-result-cards {
	display: grid;
	gap: 10px;
	grid-template-columns: 1fr;
	margin-top: 16px;
}

.cffc-mini-card {
	background: var(--cffc-card);
	border: 1px solid var(--cffc-border);
	border-radius: var(--cffc-radius-small);
	padding: 12px;
}

.cffc-mini-card span {
	color: var(--cffc-muted);
	display: block;
	font-size: 0.78rem;
	font-weight: 800;
	letter-spacing: 0.03em;
	margin-bottom: 5px;
	text-transform: uppercase;
}

.cffc-mini-card strong {
	color: var(--cffc-text);
	font-size: 1.2rem;
	font-weight: 900;
}

.cffc-summary {
	background: rgba(61, 70, 86, 0.08);
	border: 1px solid rgba(61, 70, 86, 0.12);
	border-radius: var(--cffc-radius-small);
	color: var(--cffc-text);
	font-weight: 750;
	line-height: 1.55;
	margin-top: 16px;
	padding: 13px;
}

.cffc-table-wrap {
	margin-top: 14px;
	overflow-x: auto;
}

.cffc-breakdown {
	border-collapse: collapse;
	width: 100%;
}

.cffc-breakdown th,
.cffc-breakdown td {
	border-bottom: 1px solid var(--cffc-border);
	font-size: 0.92rem;
	padding: 10px 4px;
	text-align: left;
	vertical-align: top;
}

.cffc-breakdown td:last-child {
	font-weight: 900;
	text-align: right;
	white-space: nowrap;
}

.cffc-breakdown tr:last-child td {
	border-bottom: 0;
}

.cffc-errors {
	background: rgba(179, 38, 30, 0.1);
	border: 1px solid rgba(179, 38, 30, 0.26);
	border-radius: var(--cffc-radius-small);
	color: var(--cffc-danger);
	font-weight: 800;
	line-height: 1.45;
	margin-top: 14px;
	padding: 12px;
}

.cffc-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-top: 16px;
}

.cffc-button {
	background: var(--cffc-card);
	border: 1px solid var(--cffc-border);
	color: var(--cffc-primary);
	font-size: 0.88rem;
}

.cffc-button-primary {
	background: linear-gradient(135deg, var(--cffc-primary), var(--cffc-primary-strong));
	border-color: transparent;
	color: #ffffff;
}

.cffc-button:active,
.cffc-theme-toggle:active {
	transform: translateY(0);
}

.cffc-calculator.cffc-theme-dark {
	--cffc-bg: #111723;
	--cffc-card: #182130;
	--cffc-card-soft: #121a27;
	--cffc-text: #f3f6fb;
	--cffc-muted: #a7b1c2;
	--cffc-border: #2d3a4d;
	--cffc-primary: #d7dde8;
	--cffc-primary-strong: #ffffff;
	--cffc-accent: #929eb1;
	--cffc-shadow: 0 18px 55px rgba(0, 0, 0, 0.35);
}

.cffc-calculator.cffc-theme-dark .cffc-shell {
	background: linear-gradient(135deg, #111723, #172033 50%, #0d121b);
}

.cffc-calculator.cffc-theme-dark .cffc-card,
.cffc-calculator.cffc-theme-dark .cffc-results {
	background: rgba(24, 33, 48, 0.92);
}

.cffc-calculator.cffc-theme-dark .cffc-button-primary {
	background: linear-gradient(135deg, #e2e8f0, #aeb8c7);
	color: #111723;
}

.screen-reader-text {
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	height: 1px;
	overflow: hidden;
	position: absolute !important;
	white-space: nowrap;
	width: 1px;
}

@media (min-width: 520px) {
	.cffc-shell {
		padding: 22px;
	}

	.cffc-header {
		align-items: center;
		flex-direction: row;
	}

	.cffc-field-row {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.cffc-tier-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.cffc-result-cards {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}

	.cffc-results-top {
		grid-template-columns: 1fr auto;
	}

	.cffc-chart {
		justify-self: end;
	}
}

@media (min-width: 900px) {
	.cffc-shell {
		padding: 28px;
	}

	.cffc-grid {
		grid-template-columns: minmax(0, 1fr) minmax(330px, 0.85fr);
	}

	.cffc-card-main,
	.cffc-results {
		grid-row: span 2;
	}

	.cffc-results {
		position: sticky;
		top: 24px;
	}
}

@media (min-width: 1180px) {
	.cffc-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr)) minmax(360px, 0.82fr);
	}

	.cffc-card-main,
	.cffc-results {
		grid-row: span 2;
	}
}

@media print {
	.cffc-theme-toggle,
	.cffc-actions {
		display: none !important;
	}

	.cffc-shell,
	.cffc-card {
		box-shadow: none !important;
	}

	.cffc-calculator {
		color: #111 !important;
	}
}