.sfc-calculator {
	--sfc-ink: #18333a;
	--sfc-muted: #52666b;
	--sfc-surface: #f5faf8;
	--sfc-border: #cbded8;
	--sfc-accent: #117a6a;
	--sfc-accent-dark: #0b5d52;
	--sfc-highlight: #e6f5f0;
	--sfc-warning: #8a4b08;
	margin: 2rem 0;
	border: 1px solid var(--sfc-border);
	border-radius: 18px;
	background: #fff;
	box-shadow: 0 12px 32px rgba(24, 51, 58, 0.08);
	color: var(--sfc-ink);
	overflow: hidden;
}

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

.sfc-calculator__header,
.sfc-calculator__form,
.sfc-result,
.sfc-privacy,
.sfc-noscript {
	padding: 1.25rem clamp(1rem, 3vw, 2rem);
}

.sfc-calculator__header {
	background: linear-gradient(135deg, #edf8f4 0%, #f7fbfa 100%);
	border-bottom: 1px solid var(--sfc-border);
}

.sfc-calculator__header h2 {
	margin: 0.15rem 0 0.5rem;
	font-size: clamp(1.45rem, 3vw, 2rem);
	line-height: 1.2;
}

.sfc-calculator__header p:last-child {
	margin-bottom: 0;
	max-width: 70ch;
}

.sfc-eyebrow {
	margin: 0;
	color: var(--sfc-accent-dark);
	font-size: 0.78rem;
	font-weight: 800;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.sfc-fields {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 1rem 1.25rem;
}

.sfc-field {
	min-width: 0;
}

.sfc-field label {
	display: block;
	margin-bottom: 0.38rem;
	font-weight: 700;
	line-height: 1.35;
}

.sfc-field input,
.sfc-field select {
	width: 100%;
	min-height: 48px;
	margin: 0;
	border: 1px solid #9bb5ae;
	border-radius: 9px;
	background: #fff;
	color: var(--sfc-ink);
	font: inherit;
}

.sfc-field input {
	padding: 0.65rem 3.2rem 0.65rem 0.75rem;
}

.sfc-field select {
	padding: 0.65rem 2.2rem 0.65rem 0.75rem;
}

.sfc-field input:focus,
.sfc-field select:focus,
.sfc-button:focus-visible {
	outline: 3px solid rgba(17, 122, 106, 0.25);
	outline-offset: 2px;
	border-color: var(--sfc-accent);
}

.sfc-input-unit {
	position: relative;
}

.sfc-input-unit > span {
	position: absolute;
	top: 50%;
	right: 0.75rem;
	max-width: 2.4rem;
	color: var(--sfc-muted);
	font-size: 0.85rem;
	font-weight: 700;
	text-align: right;
	transform: translateY(-50%);
	pointer-events: none;
}

.sfc-field small {
	display: block;
	margin-top: 0.35rem;
	color: var(--sfc-muted);
	font-size: 0.82rem;
	line-height: 1.4;
}

.sfc-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-top: 1.25rem;
}

.sfc-button {
	min-height: 46px;
	padding: 0.72rem 1rem;
	border: 1px solid var(--sfc-accent);
	border-radius: 9px;
	font: inherit;
	font-weight: 800;
	cursor: pointer;
}

.sfc-button--primary {
	background: var(--sfc-accent);
	color: #fff;
}

.sfc-button--primary:hover {
	background: var(--sfc-accent-dark);
}

.sfc-button--secondary {
	background: #fff;
	color: var(--sfc-accent-dark);
}

.sfc-result {
	border-top: 1px solid var(--sfc-border);
	background: var(--sfc-surface);
}

.sfc-result:focus {
	outline: none;
}

.sfc-result h3 {
	margin: 0 0 1rem;
}

.sfc-result-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
	gap: 0.75rem;
}

.sfc-result-card {
	padding: 0.9rem;
	border: 1px solid var(--sfc-border);
	border-radius: 11px;
	background: #fff;
}

.sfc-result-card--highlight {
	border-color: var(--sfc-accent);
	background: var(--sfc-highlight);
}

.sfc-result-card span,
.sfc-result-card small {
	display: block;
	color: var(--sfc-muted);
	font-size: 0.8rem;
	line-height: 1.35;
}

.sfc-result-card strong {
	display: block;
	margin: 0.2rem 0;
	font-size: 1.35rem;
	line-height: 1.2;
}

.sfc-result-note,
.sfc-alert-group {
	margin: 1rem 0 0;
	padding: 0.85rem 1rem;
	border-left: 4px solid var(--sfc-accent);
	border-radius: 6px;
	background: #fff;
}

.sfc-result-note--warning,
.sfc-alert-group {
	border-left-color: #d07718;
	color: #603604;
}

.sfc-result-list {
	margin: 0.75rem 0 0;
}

.sfc-result-list li + li {
	margin-top: 0.45rem;
}

.sfc-errors {
	margin-bottom: 1rem;
	padding: 0.85rem 1rem;
	border: 1px solid #bd2c2c;
	border-radius: 8px;
	background: #fff4f4;
	color: #7a1717;
}

.sfc-errors ul {
	margin-bottom: 0;
}

.sfc-privacy,
.sfc-noscript {
	margin: 0;
	border-top: 1px solid var(--sfc-border);
	color: var(--sfc-muted);
	font-size: 0.82rem;
}

@media (max-width: 640px) {
	.sfc-fields {
		grid-template-columns: 1fr;
	}

	.sfc-actions,
	.sfc-button {
		width: 100%;
	}
}

@media (prefers-reduced-motion: reduce) {
	.sfc-calculator *,
	.sfc-calculator *::before,
	.sfc-calculator *::after {
		scroll-behavior: auto !important;
		transition: none !important;
	}
}

@media print {
	.sfc-calculator__form,
	.sfc-privacy,
	.sfc-noscript {
		display: none !important;
	}

	.sfc-calculator {
		box-shadow: none;
	}
}