/**
 * Square Footage Calculator front end styles.
 *
 * Design notes:
 * - Clean, cool worksheet look tuned to the site: white surfaces, a faint
 *   blueprint grid, dimension lines with end ticks, one configurable accent.
 * - Headings and the big total use a display face (Oswald) that matches the
 *   site; everything else inherits the theme body font.
 * - Longhand properties are used with var() on purpose. Keep it that way.
 */

/* ------------------------------------------------------------------ *
 * Tokens
 * ------------------------------------------------------------------ */

.sfc-wrap {
	--sfc-accent: #0b7cbb;
	--sfc-accent-contrast: #ffffff;
	/* Accent used as text (big total, cost). Brightens on dark grounds so the
	   brand blue stays vivid without weakening white-on-accent button contrast. */
	--sfc-accent-strong: #0b7cbb;
	--sfc-bg: #eef1f5;
	--sfc-surface: #ffffff;
	--sfc-ink: #1f2933;
	--sfc-muted: #66727e;
	--sfc-line: #e3e8ee;
	--sfc-line-strong: #d2d9e1;
	--sfc-soft: rgba(11, 124, 187, 0.08);
	--sfc-soft-2: rgba(11, 124, 187, 0.15);
	--sfc-ring: rgba(11, 124, 187, 0.24);
	--sfc-shadow: 0 24px 60px -30px rgba(20, 33, 48, 0.30);
	--sfc-danger: #c0392b;

	/* Display face for headings and the big total, matching the site's Oswald.
	   Falls back to the theme body font where Oswald is not loaded. */
	--sfc-font-display: 'Oswald', 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

	box-sizing: border-box;
	max-width: 860px;
	margin-left: auto;
	margin-right: auto;
	color: var(--sfc-ink);
	line-height: 1.5;
	-webkit-font-smoothing: antialiased;
}

/* Accent derived tints, when color-mix is available (all modern browsers). */
@supports (background-color: color-mix(in srgb, red 50%, transparent)) {
	.sfc-wrap {
		--sfc-soft: color-mix(in srgb, var(--sfc-accent) 8%, transparent);
		--sfc-soft-2: color-mix(in srgb, var(--sfc-accent) 16%, transparent);
		--sfc-ring: color-mix(in srgb, var(--sfc-accent) 24%, transparent);
	}
}

.sfc-theme-dark {
	--sfc-accent-strong: #3fa9e6;
	--sfc-bg: #10161d;
	--sfc-surface: #18212b;
	--sfc-ink: #e8edf2;
	--sfc-muted: #94a2b0;
	--sfc-line: #26313d;
	--sfc-line-strong: #354250;
	--sfc-shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.65);
}

@media (prefers-color-scheme: dark) {
	.sfc-theme-auto {
		--sfc-accent-strong: #3fa9e6;
		--sfc-bg: #10161d;
		--sfc-surface: #18212b;
		--sfc-ink: #e8edf2;
		--sfc-muted: #94a2b0;
		--sfc-line: #26313d;
		--sfc-line-strong: #354250;
		--sfc-shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.65);
	}
}

.sfc-wrap *,
.sfc-wrap *::before,
.sfc-wrap *::after {
	box-sizing: inherit;
}

.sfc-wrap button {
	font-family: inherit;
	cursor: pointer;
}

.sfc-wrap input,
.sfc-wrap select {
	font-family: inherit;
}

/* Kill number input spinners, the stepper buttons do that job. */
.sfc-wrap input[type='number']::-webkit-outer-spin-button,
.sfc-wrap input[type='number']::-webkit-inner-spin-button {
	-webkit-appearance: none;
	margin: 0;
}

.sfc-wrap input[type='number'] {
	-moz-appearance: textfield;
	appearance: textfield;
}

/* ------------------------------------------------------------------ *
 * Card shell
 * ------------------------------------------------------------------ */

.sfc-card {
	position: relative;
	background-color: var(--sfc-bg);
	border-width: 1px;
	border-style: solid;
	border-color: var(--sfc-line);
	border-radius: 24px;
	padding: clamp(20px, 4vw, 36px);
	box-shadow: var(--sfc-shadow);
	overflow: hidden;
}

/* A fine drafting grid across the whole card, very faint. */
.sfc-card::before {
	content: '';
	position: absolute;
	inset: 0;
	pointer-events: none;
	background-image:
		linear-gradient(to right, var(--sfc-line) 1px, transparent 1px),
		linear-gradient(to bottom, var(--sfc-line) 1px, transparent 1px);
	background-size: 36px 36px;
	opacity: 0.25;
	-webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0) 320px);
	mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0) 320px);
}

.sfc-card > * {
	position: relative;
}

.sfc-header {
	text-align: center;
	margin-bottom: 22px;
}

.sfc-title {
	margin: 0 0 6px;
	font-family: var(--sfc-font-display);
	font-size: clamp(1.7rem, 3.8vw, 2.25rem);
	font-weight: 700;
	letter-spacing: -0.01em;
	line-height: 1.15;
	color: var(--sfc-ink);
}

.sfc-subtitle {
	margin: 0 auto;
	max-width: 46ch;
	color: var(--sfc-muted);
	font-size: 0.98rem;
}

/* ------------------------------------------------------------------ *
 * Step rail
 * ------------------------------------------------------------------ */

.sfc-steps {
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 0;
	list-style: none;
	margin: 0 0 26px;
	padding: 0;
}

.sfc-step {
	display: flex;
	align-items: center;
	gap: 8px;
	margin: 0;
	padding: 0;
	color: var(--sfc-muted);
	font-size: 0.85rem;
	font-weight: 600;
	cursor: pointer;
	user-select: none;
}

.sfc-step + .sfc-step::before {
	content: '';
	display: block;
	width: clamp(24px, 6vw, 64px);
	height: 2px;
	margin: 0 10px;
	background-color: var(--sfc-line-strong);
	border-radius: 2px;
}

.sfc-step.is-done + .sfc-step::before,
.sfc-step.is-active::before {
	background-color: var(--sfc-accent);
}

.sfc-step-dot {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	border-radius: 50%;
	border-width: 2px;
	border-style: solid;
	border-color: var(--sfc-line-strong);
	background-color: var(--sfc-surface);
	color: var(--sfc-muted);
	font-size: 0.8rem;
	font-weight: 700;
	transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.sfc-step.is-active .sfc-step-dot {
	border-color: var(--sfc-accent);
	background-color: var(--sfc-accent);
	color: var(--sfc-accent-contrast);
}

.sfc-step.is-active {
	color: var(--sfc-ink);
}

.sfc-step.is-done .sfc-step-dot {
	border-color: var(--sfc-accent);
	background-color: var(--sfc-soft);
	color: var(--sfc-accent);
}

/* ------------------------------------------------------------------ *
 * Panels
 * ------------------------------------------------------------------ */

.sfc-panel {
	display: none;
}

.sfc-panel.is-active {
	display: block;
	animation: sfc-panel-in 0.28s ease;
}

@keyframes sfc-panel-in {
	from {
		opacity: 0;
		transform: translateY(8px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

@media (prefers-reduced-motion: reduce) {
	.sfc-panel.is-active {
		animation: none;
	}
}

.sfc-question {
	margin: 0 0 6px;
	font-family: var(--sfc-font-display);
	font-size: clamp(1.2rem, 2.8vw, 1.5rem);
	font-weight: 600;
	letter-spacing: 0;
	text-align: center;
	color: var(--sfc-ink);
}

.sfc-hint {
	margin: 0 auto 20px;
	max-width: 52ch;
	text-align: center;
	color: var(--sfc-muted);
	font-size: 0.9rem;
}

.sfc-hint-tight {
	margin-bottom: 12px;
	text-align: left;
	max-width: none;
}

.sfc-panel-top {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 14px;
	flex-wrap: wrap;
}

.sfc-back {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 8px 12px 8px 8px;
	border-width: 0;
	background-color: transparent;
	color: var(--sfc-muted);
	font-size: 0.88rem;
	font-weight: 600;
	border-radius: 10px;
	transition: color 0.15s ease, background-color 0.15s ease;
}

.sfc-back:hover {
	color: var(--sfc-accent);
	background-color: var(--sfc-soft);
}

/* ------------------------------------------------------------------ *
 * Step 1: shape cards
 * ------------------------------------------------------------------ */

.sfc-shape-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 12px;
}

.sfc-shape-card {
	position: relative;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 2px;
	padding: 16px 12px 14px;
	background-color: var(--sfc-surface);
	border-width: 1.5px;
	border-style: solid;
	border-color: var(--sfc-line);
	border-radius: 16px;
	text-align: center;
	transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.sfc-shape-card:hover {
	transform: translateY(-3px);
	border-color: var(--sfc-accent);
	box-shadow: 0 12px 28px -14px var(--sfc-ring);
}

.sfc-shape-card:focus-visible {
	outline-width: 2px;
	outline-style: solid;
	outline-color: var(--sfc-accent);
	outline-offset: 2px;
}

.sfc-shape-card.is-selected {
	border-color: var(--sfc-accent);
	background-color: var(--sfc-soft);
	box-shadow: 0 0 0 3px var(--sfc-ring);
}

.sfc-shape-card.is-selected::after {
	content: '';
	position: absolute;
	top: 10px;
	right: 10px;
	width: 18px;
	height: 18px;
	border-radius: 50%;
	background-color: var(--sfc-accent);
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 12l5 5 9-10' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
	background-size: 12px 12px;
	background-position: center;
	background-repeat: no-repeat;
}

.sfc-shape-art {
	display: block;
	width: 100%;
	max-width: 116px;
	margin-bottom: 6px;
}

.sfc-shape-art svg {
	display: block;
	width: 100%;
	height: auto;
}

.sfc-g-fill {
	fill: var(--sfc-soft-2);
	stroke: var(--sfc-accent);
	stroke-width: 2.5;
	stroke-linejoin: round;
}

.sfc-g-dim line {
	stroke: var(--sfc-muted);
	stroke-width: 1.5;
	stroke-linecap: round;
}

.sfc-g-dash {
	stroke: var(--sfc-muted);
	stroke-width: 1.5;
	stroke-dasharray: 4 4;
	stroke-linecap: round;
	fill: none;
}

.sfc-shape-name {
	font-weight: 700;
	font-size: 0.95rem;
	color: var(--sfc-ink);
}

.sfc-shape-sub {
	font-size: 0.78rem;
	color: var(--sfc-muted);
}

/* ------------------------------------------------------------------ *
 * Step 2: measure
 * ------------------------------------------------------------------ */

.sfc-unit-switch {
	display: inline-flex;
	gap: 4px;
	padding: 4px;
	background-color: var(--sfc-surface);
	border-width: 1px;
	border-style: solid;
	border-color: var(--sfc-line);
	border-radius: 999px;
}

.sfc-unit-chip {
	padding: 6px 13px;
	border-width: 0;
	border-radius: 999px;
	background-color: transparent;
	color: var(--sfc-muted);
	font-size: 0.84rem;
	font-weight: 700;
	transition: background-color 0.15s ease, color 0.15s ease;
}

.sfc-unit-chip:hover {
	color: var(--sfc-ink);
}

.sfc-unit-chip.is-active {
	background-color: var(--sfc-accent);
	color: var(--sfc-accent-contrast);
}

.sfc-measure-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(272px, 1fr));
	gap: 22px;
	align-items: start;
	margin-top: 16px;
}

/* The drafting board. */
.sfc-diagram {
	background-color: var(--sfc-surface);
	background-image:
		linear-gradient(to right, var(--sfc-line) 1px, transparent 1px),
		linear-gradient(to bottom, var(--sfc-line) 1px, transparent 1px);
	background-size: 24px 24px;
	border-width: 1px;
	border-style: solid;
	border-color: var(--sfc-line);
	border-radius: 16px;
	padding: 12px;
}

.sfc-diagram svg {
	display: block;
	width: 100%;
	height: auto;
}

.sfc-dg-shape {
	fill: var(--sfc-soft-2);
	stroke: var(--sfc-accent);
	stroke-width: 2.5;
	stroke-linejoin: round;
}

.sfc-dg-divider {
	stroke: var(--sfc-accent);
	stroke-width: 1.5;
	stroke-dasharray: 5 5;
	opacity: 0.6;
}

.sfc-dg-sec {
	fill: var(--sfc-muted);
	font-size: 15px;
	font-weight: 700;
	opacity: 0.75;
}

.sfc-dg-line,
.sfc-dg-ticks line {
	stroke: var(--sfc-muted);
	stroke-width: 1.5;
	stroke-linecap: round;
	transition: stroke 0.15s ease, stroke-width 0.15s ease;
}

.sfc-dg-badge {
	fill: var(--sfc-surface);
	stroke: var(--sfc-line-strong);
	stroke-width: 1.5;
	transition: fill 0.15s ease, stroke 0.15s ease;
}

.sfc-dg-letter {
	fill: var(--sfc-ink);
	font-size: 13px;
	font-weight: 800;
	transition: fill 0.15s ease;
}

/* Focused dimension lights up on the diagram. */
.sfc-diagram[data-focus='a'] .sfc-dg-a .sfc-dg-line,
.sfc-diagram[data-focus='a'] .sfc-dg-a .sfc-dg-ticks line,
.sfc-diagram[data-focus='b'] .sfc-dg-b .sfc-dg-line,
.sfc-diagram[data-focus='b'] .sfc-dg-b .sfc-dg-ticks line,
.sfc-diagram[data-focus='c'] .sfc-dg-c .sfc-dg-line,
.sfc-diagram[data-focus='c'] .sfc-dg-c .sfc-dg-ticks line,
.sfc-diagram[data-focus='d'] .sfc-dg-d .sfc-dg-line,
.sfc-diagram[data-focus='d'] .sfc-dg-d .sfc-dg-ticks line {
	stroke: var(--sfc-accent);
	stroke-width: 2.5;
}

.sfc-diagram[data-focus='a'] .sfc-dg-a .sfc-dg-badge,
.sfc-diagram[data-focus='b'] .sfc-dg-b .sfc-dg-badge,
.sfc-diagram[data-focus='c'] .sfc-dg-c .sfc-dg-badge,
.sfc-diagram[data-focus='d'] .sfc-dg-d .sfc-dg-badge {
	fill: var(--sfc-accent);
	stroke: var(--sfc-accent);
}

.sfc-diagram[data-focus='a'] .sfc-dg-a .sfc-dg-letter,
.sfc-diagram[data-focus='b'] .sfc-dg-b .sfc-dg-letter,
.sfc-diagram[data-focus='c'] .sfc-dg-c .sfc-dg-letter,
.sfc-diagram[data-focus='d'] .sfc-dg-d .sfc-dg-letter {
	fill: var(--sfc-accent-contrast);
}

/* Fields */

.sfc-dims {
	display: flex;
	flex-direction: column;
	gap: 14px;
}

.sfc-label {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 0.88rem;
	font-weight: 600;
	color: var(--sfc-ink);
	margin-bottom: 6px;
}

.sfc-dim-badge {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 22px;
	height: 22px;
	border-radius: 50%;
	background-color: var(--sfc-soft-2);
	color: var(--sfc-accent);
	font-size: 0.75rem;
	font-weight: 800;
	flex-shrink: 0;
}

.sfc-dim-inputs {
	display: flex;
	gap: 10px;
}

.sfc-input-group {
	display: inline-flex;
	align-items: stretch;
	flex: 1 1 0;
	min-width: 0;
	background-color: var(--sfc-surface);
	border-width: 1.5px;
	border-style: solid;
	border-color: var(--sfc-line-strong);
	border-radius: 12px;
	overflow: hidden;
	transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.sfc-input-group:focus-within {
	border-color: var(--sfc-accent);
	box-shadow: 0 0 0 3px var(--sfc-ring);
}

.sfc-input-group input {
	flex: 1 1 auto;
	width: 100%;
	min-width: 0;
	padding: 11px 4px 11px 14px;
	border-width: 0;
	background-color: transparent;
	color: var(--sfc-ink);
	font-size: 1.05rem;
	font-weight: 600;
	font-variant-numeric: tabular-nums;
	outline: none;
	box-shadow: none;
}

.sfc-suffix {
	display: flex;
	align-items: center;
	padding: 0 12px;
	color: var(--sfc-muted);
	font-size: 0.82rem;
	font-weight: 700;
	background-color: transparent;
}

.sfc-qty-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-top: 16px;
	padding-top: 16px;
	border-top-width: 1px;
	border-top-style: dashed;
	border-top-color: var(--sfc-line-strong);
}

.sfc-qty-row .sfc-label {
	margin-bottom: 0;
}

.sfc-qty {
	display: inline-flex;
	align-items: center;
	background-color: var(--sfc-surface);
	border-width: 1.5px;
	border-style: solid;
	border-color: var(--sfc-line-strong);
	border-radius: 12px;
	overflow: hidden;
}

.sfc-qty-btn {
	width: 38px;
	height: 42px;
	border-width: 0;
	background-color: transparent;
	color: var(--sfc-muted);
	font-size: 1.15rem;
	font-weight: 700;
	transition: background-color 0.15s ease, color 0.15s ease;
}

.sfc-qty-btn:hover {
	background-color: var(--sfc-soft);
	color: var(--sfc-accent);
}

.sfc-qty-input {
	width: 46px;
	border-width: 0;
	background-color: transparent;
	color: var(--sfc-ink);
	text-align: center;
	font-size: 1rem;
	font-weight: 700;
	font-variant-numeric: tabular-nums;
	outline: none;
}

.sfc-error {
	margin: 12px 0 0;
	padding: 10px 14px;
	border-radius: 10px;
	background-color: rgba(179, 64, 46, 0.1);
	color: var(--sfc-danger);
	font-size: 0.88rem;
	font-weight: 600;
}

/* ------------------------------------------------------------------ *
 * Buttons
 * ------------------------------------------------------------------ */

.sfc-primary {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	width: 100%;
	margin-top: 18px;
	padding: 15px 22px;
	border-width: 0;
	border-radius: 14px;
	background-color: var(--sfc-accent);
	color: var(--sfc-accent-contrast);
	font-size: 1rem;
	font-weight: 700;
	letter-spacing: 0.01em;
	text-decoration: none;
	box-shadow: 0 14px 26px -14px var(--sfc-ring);
	transition: transform 0.15s ease, filter 0.15s ease;
}

.sfc-primary:hover {
	filter: brightness(0.93);
	transform: translateY(-1px);
	color: var(--sfc-accent-contrast);
}

.sfc-primary:focus-visible {
	outline-width: 2px;
	outline-style: solid;
	outline-color: var(--sfc-ink);
	outline-offset: 2px;
}

.sfc-ghost {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 11px 16px;
	border-width: 1.5px;
	border-style: solid;
	border-color: var(--sfc-line-strong);
	border-radius: 12px;
	background-color: var(--sfc-surface);
	color: var(--sfc-ink);
	font-size: 0.9rem;
	font-weight: 650;
	transition: border-color 0.15s ease, color 0.15s ease, background-color 0.15s ease;
}

.sfc-ghost:hover {
	border-color: var(--sfc-accent);
	color: var(--sfc-accent);
}

.sfc-ghost-danger:hover {
	border-color: var(--sfc-danger);
	color: var(--sfc-danger);
}

/* ------------------------------------------------------------------ *
 * Step 3: results
 * ------------------------------------------------------------------ */

.sfc-total {
	text-align: center;
	padding: 26px 18px 22px;
	border-radius: 18px;
	background-color: var(--sfc-soft);
	border-width: 1px;
	border-style: dashed;
	border-color: var(--sfc-accent);
	margin-bottom: 22px;
}

.sfc-total-label {
	display: block;
	font-size: 0.82rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--sfc-muted);
	margin-bottom: 4px;
}

.sfc-total-value {
	display: block;
	font-family: var(--sfc-font-display);
	font-size: clamp(2.6rem, 7.6vw, 3.6rem);
	font-weight: 700;
	letter-spacing: -0.01em;
	line-height: 1.05;
	color: var(--sfc-ink);
	font-variant-numeric: tabular-nums;
}

.sfc-total-value [data-sfc-total] {
	color: var(--sfc-accent-strong);
}

.sfc-total-unit {
	font-size: 0.45em;
	font-weight: 700;
	letter-spacing: 0;
	color: var(--sfc-muted);
}

.sfc-conversions {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 8px;
	margin-top: 14px;
}

.sfc-conv {
	padding: 5px 13px;
	border-radius: 999px;
	background-color: var(--sfc-surface);
	border-width: 1px;
	border-style: solid;
	border-color: var(--sfc-line);
	color: var(--sfc-muted);
	font-size: 0.82rem;
	font-weight: 650;
	font-variant-numeric: tabular-nums;
}

.sfc-block-title {
	margin: 0 0 10px;
	font-size: 0.95rem;
	font-weight: 750;
	color: var(--sfc-ink);
}

.sfc-areas,
.sfc-waste,
.sfc-cost {
	margin-bottom: 22px;
	padding: 16px;
	background-color: var(--sfc-surface);
	border-width: 1px;
	border-style: solid;
	border-color: var(--sfc-line);
	border-radius: 16px;
}

.sfc-area-list {
	list-style: none;
	margin: 0 0 12px;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.sfc-area {
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 10px 12px;
	border-radius: 12px;
	background-color: var(--sfc-bg);
	border-width: 1px;
	border-style: solid;
	border-color: var(--sfc-line);
}

.sfc-area-art {
	flex-shrink: 0;
	width: 42px;
}

.sfc-area-art svg {
	display: block;
	width: 100%;
	height: auto;
}

.sfc-area-text {
	flex: 1 1 auto;
	min-width: 0;
	display: flex;
	flex-direction: column;
	line-height: 1.35;
}

.sfc-area-text strong {
	font-size: 0.9rem;
	font-weight: 700;
	color: var(--sfc-ink);
}

.sfc-area-desc {
	font-size: 0.78rem;
	color: var(--sfc-muted);
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.sfc-area-val {
	font-size: 0.92rem;
	font-weight: 750;
	color: var(--sfc-ink);
	font-variant-numeric: tabular-nums;
	white-space: nowrap;
}

.sfc-area-remove {
	flex-shrink: 0;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 30px;
	height: 30px;
	border-width: 0;
	border-radius: 8px;
	background-color: transparent;
	color: var(--sfc-muted);
	transition: background-color 0.15s ease, color 0.15s ease;
}

.sfc-area-remove:hover {
	background-color: rgba(179, 64, 46, 0.12);
	color: var(--sfc-danger);
}

/* Waste chips */

.sfc-waste-chips {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px;
	margin-bottom: 12px;
}

.sfc-chip {
	padding: 8px 15px;
	border-width: 1.5px;
	border-style: solid;
	border-color: var(--sfc-line-strong);
	border-radius: 999px;
	background-color: var(--sfc-bg);
	color: var(--sfc-ink);
	font-size: 0.86rem;
	font-weight: 700;
	font-variant-numeric: tabular-nums;
	transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.sfc-chip:hover {
	border-color: var(--sfc-accent);
	color: var(--sfc-accent);
}

.sfc-chip.is-active {
	border-color: var(--sfc-accent);
	background-color: var(--sfc-accent);
	color: var(--sfc-accent-contrast);
}

.sfc-waste-custom {
	flex: 0 1 110px;
}

.sfc-waste-custom input {
	padding: 8px 4px 8px 12px;
	font-size: 0.95rem;
}

.sfc-waste-result {
	margin: 0;
	font-size: 0.92rem;
	color: var(--sfc-muted);
}

.sfc-waste-result strong {
	color: var(--sfc-ink);
	font-weight: 800;
	font-variant-numeric: tabular-nums;
}

/* Cost */

.sfc-cost-row {
	display: flex;
	align-items: center;
	gap: 16px;
	flex-wrap: wrap;
}

.sfc-cost-row .sfc-label {
	margin-bottom: 0;
}

.sfc-price-group {
	display: inline-flex;
	align-items: stretch;
	width: 150px;
	background-color: var(--sfc-bg);
	border-width: 1.5px;
	border-style: solid;
	border-color: var(--sfc-line-strong);
	border-radius: 12px;
	overflow: hidden;
	transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.sfc-price-group:focus-within {
	border-color: var(--sfc-accent);
	box-shadow: 0 0 0 3px var(--sfc-ring);
}

.sfc-price-symbol {
	display: flex;
	align-items: center;
	padding: 0 4px 0 12px;
	color: var(--sfc-muted);
	font-size: 0.95rem;
	font-weight: 700;
}

.sfc-price-input {
	flex: 1 1 auto;
	width: 100%;
	min-width: 0;
	padding: 10px 12px 10px 4px;
	border-width: 0;
	background-color: transparent;
	color: var(--sfc-ink);
	font-size: 1rem;
	font-weight: 650;
	font-variant-numeric: tabular-nums;
	outline: none;
	box-shadow: none;
}

.sfc-cost-out {
	margin-left: auto;
	text-align: right;
}

.sfc-cost-label {
	display: block;
	font-size: 0.78rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--sfc-muted);
}

.sfc-cost-value {
	font-size: 1.5rem;
	font-weight: 800;
	letter-spacing: -0.02em;
	color: var(--sfc-accent-strong);
	font-variant-numeric: tabular-nums;
}

/* Actions */

.sfc-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	align-items: center;
}

.sfc-cta {
	width: auto;
	margin-top: 0;
	margin-left: auto;
	padding: 13px 22px;
}

/* ------------------------------------------------------------------ *
 * Disclaimer + FAQ
 * ------------------------------------------------------------------ */

.sfc-disclaimer {
	margin: 20px 0 0;
	text-align: center;
	font-size: 0.78rem;
	color: var(--sfc-muted);
}

.sfc-faq {
	margin-top: 30px;
}

.sfc-faq-title {
	font-family: var(--sfc-font-display);
	font-size: 1.4rem;
	font-weight: 600;
	letter-spacing: 0;
	margin: 0 0 14px;
	color: var(--sfc-ink);
}

.sfc-faq-item {
	background-color: var(--sfc-surface);
	border-width: 1px;
	border-style: solid;
	border-color: var(--sfc-line);
	border-radius: 12px;
	margin-bottom: 8px;
	overflow: hidden;
}

.sfc-faq-q {
	padding: 14px 42px 14px 16px;
	font-weight: 650;
	font-size: 0.95rem;
	cursor: pointer;
	list-style: none;
	position: relative;
	color: var(--sfc-ink);
}

.sfc-faq-q::-webkit-details-marker {
	display: none;
}

.sfc-faq-q::after {
	content: '+';
	position: absolute;
	right: 16px;
	top: 50%;
	transform: translateY(-50%);
	font-size: 1.2rem;
	font-weight: 600;
	color: var(--sfc-accent);
	transition: transform 0.18s ease;
}

.sfc-faq-item[open] .sfc-faq-q::after {
	transform: translateY(-50%) rotate(45deg);
}

.sfc-faq-a {
	margin: 0;
	padding: 0 16px 16px;
	font-size: 0.92rem;
	color: var(--sfc-muted);
}

/* ------------------------------------------------------------------ *
 * Small screens
 * ------------------------------------------------------------------ */

@media (max-width: 560px) {
	.sfc-card {
		border-radius: 18px;
	}

	.sfc-shape-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 10px;
	}

	.sfc-step-label {
		display: none;
	}

	.sfc-step.is-active .sfc-step-label {
		display: inline;
	}

	.sfc-panel-top {
		flex-direction: column;
		align-items: stretch;
	}

	.sfc-unit-switch {
		justify-content: space-between;
		display: flex;
	}

	.sfc-unit-chip {
		flex: 1 1 auto;
		text-align: center;
		padding-left: 6px;
		padding-right: 6px;
	}

	.sfc-cost-out {
		width: 100%;
		margin-left: 0;
		text-align: left;
	}

	.sfc-actions .sfc-ghost {
		flex: 1 1 calc(50% - 5px);
		justify-content: center;
	}

	.sfc-cta {
		width: 100%;
		margin-left: 0;
		justify-content: center;
	}
}