/*!
 * Gravel Calculator Pro - styles ("Stone & Clay").
 * Every selector is scoped to .gcp-calculator. Colours are custom properties;
 * admin colour settings override them. Motion uses transform and opacity only.
 */

/* ============ Tokens: light ============ */

.gcp-calculator {
	--gcp-bg: #f6f4ef;
	--gcp-surface: #ffffff;
	--gcp-surface-2: #faf9f6;
	--gcp-text: #1c1917;
	--gcp-muted: #6b645f;
	--gcp-border: #e7e5e4;
	--gcp-field: #8a837e;
	--gcp-primary: #2f5d50;
	--gcp-primary-soft: #e6efeb;
	--gcp-accent: #c2410c;
	--gcp-on-primary: #ffffff;
	--gcp-on-accent: #ffffff;
	--gcp-warn-bg: #fff7ed;
	--gcp-warn-line: #fdba74;
	--gcp-warn-text: #7c2d12;
	--gcp-err: #b42318;
	--gcp-stone-1: #d9d2c7;
	--gcp-stone-2: #c3b8a7;
	--gcp-stone-3: #aa9d89;
	--gcp-stone-4: #928571;
	--gcp-dots: #6b5f50;
	--gcp-soil: #8c6d52;
	--gcp-radius: 12px;
	--gcp-radius-card: calc(var(--gcp-radius) + 4px);
	--gcp-shadow: 0 1px 2px rgba(28, 25, 23, .05), 0 4px 10px -2px rgba(28, 25, 23, .06), 0 14px 30px -14px rgba(28, 25, 23, .14);
	--gcp-shadow-lift: 0 2px 4px rgba(28, 25, 23, .06), 0 10px 24px -8px rgba(28, 25, 23, .18);
	--gcp-ease: cubic-bezier(.2, .7, .2, 1);
	--gcp-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial, sans-serif;
}

/* ============ Tokens: dark ============ */

@media (prefers-color-scheme: dark) {
	.gcp-calculator:not([data-theme="light"]) {
		--gcp-bg: #171412;
		--gcp-surface: #221e1b;
		--gcp-surface-2: #1c1916;
		--gcp-text: #f5f5f4;
		--gcp-muted: #a8a29e;
		--gcp-border: #3a3431;
		--gcp-field: #7a726c;
		--gcp-primary: #6fb39b;
		--gcp-primary-soft: #1d302a;
		--gcp-accent: #f97316;
		--gcp-on-primary: #171412;
		--gcp-on-accent: #171412;
		--gcp-warn-bg: #2b1b0f;
		--gcp-warn-line: #9a3412;
		--gcp-warn-text: #fed7aa;
		--gcp-err: #fca5a5;
		--gcp-stone-1: #9a8c7f;
		--gcp-stone-2: #7a6d62;
		--gcp-stone-3: #5e534a;
		--gcp-stone-4: #463d36;
		--gcp-dots: #cfc6bb;
		--gcp-soil: #3f3129;
		--gcp-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 24px -10px rgba(0, 0, 0, .6);
		--gcp-shadow-lift: 0 2px 6px rgba(0, 0, 0, .45), 0 14px 28px -10px rgba(0, 0, 0, .7);
	}
}

.gcp-calculator[data-theme="dark"] {
	--gcp-bg: #171412;
	--gcp-surface: #221e1b;
	--gcp-surface-2: #1c1916;
	--gcp-text: #f5f5f4;
	--gcp-muted: #a8a29e;
	--gcp-border: #3a3431;
	--gcp-field: #7a726c;
	--gcp-primary: #6fb39b;
	--gcp-primary-soft: #1d302a;
	--gcp-accent: #f97316;
	--gcp-on-primary: #171412;
	--gcp-on-accent: #171412;
	--gcp-warn-bg: #2b1b0f;
	--gcp-warn-line: #9a3412;
	--gcp-warn-text: #fed7aa;
	--gcp-err: #fca5a5;
	--gcp-stone-1: #9a8c7f;
	--gcp-stone-2: #7a6d62;
	--gcp-stone-3: #5e534a;
	--gcp-stone-4: #463d36;
	--gcp-dots: #cfc6bb;
	--gcp-soil: #3f3129;
	--gcp-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 24px -10px rgba(0, 0, 0, .6);
	--gcp-shadow-lift: 0 2px 6px rgba(0, 0, 0, .45), 0 14px 28px -10px rgba(0, 0, 0, .7);
}

/* ============ Base ============ */

.gcp-calculator {
	container-type: inline-size;
	container-name: gcp;
	box-sizing: border-box;
	width: 100%;
	max-width: 100%;
	margin: 0;
	padding: 16px;
	color: var(--gcp-text);
	background: var(--gcp-bg);
	border: 1px solid var(--gcp-border);
	border-radius: var(--gcp-radius-card);
	font-family: var(--gcp-font);
	font-size: 16px;
	line-height: 1.5;
	text-align: left;
	overflow-wrap: break-word;
	font-variant-numeric: tabular-nums;
	-webkit-font-smoothing: antialiased;
}

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

.gcp-calculator [hidden] {
	display: none !important;
}

.gcp-calculator p,
.gcp-calculator ul,
.gcp-calculator ol,
.gcp-calculator dl,
.gcp-calculator figure {
	margin: 0 0 .75em;
}

.gcp-calculator button,
.gcp-calculator input,
.gcp-calculator select,
.gcp-calculator textarea {
	font-family: inherit;
	font-size: 16px;
	line-height: 1.3;
	letter-spacing: normal;
	text-transform: none;
	margin: 0;
	color: inherit;
}

.gcp-calculator :focus-visible {
	outline: 2px solid var(--gcp-primary);
	outline-offset: 2px;
}

.gcp-calculator .gcp-sr {
	position: absolute !important;
	width: 1px !important;
	height: 1px !important;
	padding: 0 !important;
	margin: -1px !important;
	overflow: hidden !important;
	clip: rect(0, 0, 0, 0) !important;
	white-space: nowrap !important;
	border: 0 !important;
}

.gcp-calculator .gcp-ico {
	flex: 0 0 auto;
	width: 1.05em;
	height: 1.05em;
	fill: none;
	stroke: currentColor;
	stroke-width: 2;
	stroke-linecap: round;
	stroke-linejoin: round;
	vertical-align: -.15em;
}

/* ============ Settings bar ============ */

.gcp-calculator .gcp-bar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 8px 16px;
	margin: 0 0 14px;
	padding: 6px 6px 6px 12px;
	background: var(--gcp-surface);
	border: 1px solid var(--gcp-border);
	border-radius: var(--gcp-radius-card);
	box-shadow: var(--gcp-shadow);
}

.gcp-calculator .gcp-bar-item {
	display: flex;
	align-items: center;
	gap: 8px;
	margin: 0;
	padding: 0;
	border: 0;
	min-width: 0;
}

.gcp-calculator .gcp-bar-label {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: .875rem;
	font-weight: 600;
	color: var(--gcp-muted);
	white-space: nowrap;
}

.gcp-calculator .gcp-select--sm {
	width: auto;
	min-width: 0;
	max-width: 13rem;
	font-size: .9375rem;
	padding-top: 6px;
	padding-bottom: 6px;
}

/* ============ Fields ============ */

.gcp-calculator .gcp-fs {
	margin: 0 0 16px;
	padding: 0;
	border: 0;
	min-width: 0;
}

.gcp-calculator .gcp-label,
.gcp-calculator .gcp-fs > legend {
	display: block;
	margin: 0 0 6px;
	padding: 0;
	font-size: .875rem;
	font-weight: 600;
	color: var(--gcp-text);
	float: none;
	width: auto;
	border: 0;
}

.gcp-calculator .gcp-label--icon {
	display: flex;
	align-items: center;
	gap: 6px;
}

.gcp-calculator .gcp-label--icon .gcp-ico,
.gcp-calculator .gcp-sub-h .gcp-ico,
.gcp-calculator .gcp-card-h .gcp-ico {
	color: var(--gcp-primary);
}

.gcp-calculator .gcp-field {
	position: relative;
	margin: 0 0 14px;
	min-width: 0;
}

.gcp-calculator .gcp-input,
.gcp-calculator .gcp-select {
	display: block;
	width: 100%;
	max-width: 100%;
	height: auto;
	min-height: 46px;
	padding: 10px 12px;
	color: var(--gcp-text);
	background-color: var(--gcp-surface);
	border: 1px solid var(--gcp-field);
	border-radius: var(--gcp-radius);
	box-shadow: none;
	transition: box-shadow .18s var(--gcp-ease), border-color .18s var(--gcp-ease);
}

.gcp-calculator .gcp-select {
	-webkit-appearance: none;
	appearance: none;
	padding-right: 34px;
	background-image: linear-gradient(45deg, transparent 50%, var(--gcp-muted) 50%), linear-gradient(135deg, var(--gcp-muted) 50%, transparent 50%);
	background-position: right 17px center, right 12px center;
	background-size: 5px 5px, 5px 5px;
	background-repeat: no-repeat;
	cursor: pointer;
}

/* Smooth focus ring in the primary colour (paint only, no layout). */
.gcp-calculator .gcp-input:focus,
.gcp-calculator .gcp-select:focus {
	outline: none;
	border-color: var(--gcp-primary);
	box-shadow: 0 0 0 3px var(--gcp-primary-soft), 0 0 0 1px var(--gcp-primary);
}

.gcp-calculator .gcp-input:focus-visible,
.gcp-calculator .gcp-select:focus-visible {
	outline: 2px solid var(--gcp-primary);
	outline-offset: 1px;
}

.gcp-calculator .gcp-input::placeholder {
	color: var(--gcp-muted);
	opacity: 1;
}

.gcp-calculator .gcp-input[aria-invalid="true"] {
	border-color: var(--gcp-err);
	box-shadow: 0 0 0 1px var(--gcp-err);
}

.gcp-calculator .gcp-err {
	display: flex;
	align-items: center;
	gap: 6px;
	margin: 6px 0 0;
	font-size: .8125rem;
	font-weight: 600;
	color: var(--gcp-err);
	animation: gcp-fade .2s var(--gcp-ease) both;
}

.gcp-calculator .gcp-shake {
	animation: gcp-shake .36s var(--gcp-ease);
}

/* Number + unit, joined. */
.gcp-calculator .gcp-ig {
	display: flex;
	align-items: stretch;
	min-width: 0;
}

.gcp-calculator .gcp-ig .gcp-input {
	flex: 1 1 auto;
	min-width: 0;
	border-top-right-radius: 0;
	border-bottom-right-radius: 0;
}

.gcp-calculator .gcp-ig .gcp-unit,
.gcp-calculator .gcp-ig .gcp-suffix {
	flex: 0 0 auto;
	width: auto;
	max-width: 58%;
	margin-left: -1px;
	border-top-left-radius: 0;
	border-bottom-left-radius: 0;
	background-color: var(--gcp-surface-2);
}

.gcp-calculator .gcp-suffix {
	display: flex;
	align-items: center;
	padding: 0 14px;
	border: 1px solid var(--gcp-field);
	border-radius: 0 var(--gcp-radius) var(--gcp-radius) 0;
	color: var(--gcp-muted);
}

.gcp-calculator .gcp-ig--pct {
	max-width: 12rem;
}

.gcp-calculator .gcp-help {
	margin: 6px 0 0;
	font-size: .8125rem;
	line-height: 1.45;
	color: var(--gcp-muted);
}

.gcp-calculator .gcp-grid2 {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	column-gap: 14px;
}

/* ============ Segmented controls + tabs with a sliding pill ============ */

.gcp-calculator .gcp-seg,
.gcp-calculator .gcp-tabs {
	position: relative;
	isolation: isolate;
}

.gcp-calculator .gcp-pill {
	position: absolute;
	top: 0;
	left: 0;
	z-index: -1;
	width: 0;
	height: 0;
	background: var(--gcp-primary);
	border-radius: calc(var(--gcp-radius) - 3px);
	box-shadow: 0 1px 2px rgba(0, 0, 0, .12), 0 4px 10px -4px rgba(0, 0, 0, .25);
	opacity: 0;
	pointer-events: none;
}

.gcp-calculator .gcp-pill--on {
	opacity: 1;
}

.gcp-calculator .gcp-pill--anim {
	transition: transform .25s ease-out, opacity .2s ease-out;
}

.gcp-calculator .gcp-seg {
	display: inline-flex;
	flex-wrap: wrap;
	gap: 2px;
	padding: 3px;
	max-width: 100%;
	background: var(--gcp-surface-2);
	border: 1px solid var(--gcp-field);
	border-radius: var(--gcp-radius);
}

.gcp-calculator .gcp-seg label {
	position: relative;
	display: block;
	margin: 0;
	cursor: pointer;
}

.gcp-calculator .gcp-seg input,
.gcp-calculator .gcp-shape input {
	position: absolute;
	opacity: 0;
	width: 1px;
	height: 1px;
	margin: 0;
}

.gcp-calculator .gcp-seg span {
	display: flex;
	align-items: center;
	min-height: 38px;
	padding: 8px 14px;
	font-size: .9375rem;
	font-weight: 600;
	color: var(--gcp-text);
	border-radius: calc(var(--gcp-radius) - 3px);
	transition: color .2s ease-out;
}

.gcp-calculator .gcp-seg--sm span {
	padding: 6px 12px;
	font-size: .875rem;
}

.gcp-calculator .gcp-seg input:checked + span {
	color: var(--gcp-on-primary);
}

/* Before the script places the pill, show the selection without it. */
.gcp-calculator .gcp-seg:not(.gcp-has-pill) input:checked + span {
	background: var(--gcp-primary);
}

.gcp-calculator .gcp-seg input:focus-visible + span {
	outline: 2px solid var(--gcp-primary);
	outline-offset: 2px;
}

.gcp-calculator .gcp-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 4px;
	margin: 0 0 16px;
	padding: 4px;
	background: var(--gcp-surface);
	border: 1px solid var(--gcp-border);
	border-radius: var(--gcp-radius-card);
	box-shadow: var(--gcp-shadow);
}

.gcp-calculator .gcp-tab {
	flex: 1 1 auto;
	min-width: 5.5em;
	min-height: 44px;
	padding: 8px 12px;
	font-size: .9375rem;
	font-weight: 700;
	color: var(--gcp-text);
	background: transparent;
	border: 0;
	border-radius: var(--gcp-radius);
	cursor: pointer;
	white-space: nowrap;
	transition: color .2s ease-out;
}

.gcp-calculator .gcp-tab[aria-selected="true"] {
	color: var(--gcp-on-primary);
}

.gcp-calculator .gcp-tabs:not(.gcp-has-pill) .gcp-tab[aria-selected="true"] {
	background: var(--gcp-primary);
}

/* ============ Panels ============ */

.gcp-calculator .gcp-sub-h {
	display: flex;
	align-items: center;
	gap: 8px;
	margin: 0 0 8px;
	padding: 0;
	font-size: 1rem;
	font-weight: 700;
	color: var(--gcp-text);
}

.gcp-calculator .gcp-tip {
	margin: 0 0 16px;
	padding: 12px 14px;
	font-size: .9375rem;
	background: var(--gcp-primary-soft);
	border-radius: var(--gcp-radius);
}

.gcp-calculator .gcp-zone,
.gcp-calculator .gcp-layer,
.gcp-calculator .gcp-quote {
	margin: 0 0 14px;
	padding: 14px 16px 16px;
	background: var(--gcp-surface);
	border: 1px solid var(--gcp-border);
	border-radius: var(--gcp-radius-card);
	box-shadow: var(--gcp-shadow);
	min-width: 0;
}

.gcp-calculator .gcp-zone-h {
	float: left;
	width: 100%;
	margin: 0 0 10px;
	padding: 0;
	font-size: 13px;
	font-weight: 700;
	letter-spacing: .08em;
	text-transform: uppercase;
	color: var(--gcp-muted);
	border: 0;
}

.gcp-calculator .gcp-zone-h + * {
	clear: left;
}

.gcp-calculator .gcp-zone-top {
	display: flex;
	gap: 12px;
	align-items: flex-end;
}

.gcp-calculator .gcp-zone-top .gcp-field {
	flex: 1 1 auto;
}

.gcp-calculator .gcp-zone-top .gcp-btn {
	margin-bottom: 14px;
}

.gcp-calculator .gcp-zone-sub {
	margin: 6px 0 0;
	font-weight: 600;
	color: var(--gcp-primary);
}

.gcp-calculator .gcp-zone-sub:empty {
	display: none;
}

.gcp-calculator .gcp-zone-sub--todo {
	color: var(--gcp-muted);
	font-weight: 400;
}

.gcp-calculator .gcp-opt {
	font-weight: 400;
	letter-spacing: 0;
	text-transform: none;
}

.gcp-calculator .gcp-adj {
	margin-top: 4px;
	padding: 14px 16px 2px;
	background: var(--gcp-surface);
	border: 1px solid var(--gcp-border);
	border-radius: var(--gcp-radius-card);
	box-shadow: var(--gcp-shadow);
}

.gcp-calculator .gcp-adj > legend {
	float: left;
	width: 100%;
	display: flex;
	margin-bottom: 10px;
}

.gcp-calculator .gcp-adj > legend + * {
	clear: left;
}

.gcp-calculator .gcp-tips {
	margin: 14px 0 0;
	padding: 14px 16px;
	background: var(--gcp-primary-soft);
	border-radius: var(--gcp-radius-card);
}

.gcp-calculator .gcp-tips ul,
.gcp-calculator .gcp-checklist {
	margin: 0;
	padding-left: 1.2em;
}

.gcp-calculator .gcp-tips li,
.gcp-calculator .gcp-checklist li {
	margin: 0 0 .4em;
}

/* Shape picker. */
.gcp-calculator .gcp-shapes {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 8px;
}

.gcp-calculator .gcp-shape {
	position: relative;
	display: block;
	margin: 0;
	cursor: pointer;
}

.gcp-calculator .gcp-shape-box {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 4px;
	min-height: 68px;
	padding: 8px 2px;
	font-size: .75rem;
	font-weight: 600;
	line-height: 1.15;
	text-align: center;
	color: var(--gcp-text);
	background: var(--gcp-surface-2);
	border: 1px solid var(--gcp-border);
	border-radius: var(--gcp-radius);
	transition: transform .18s var(--gcp-ease);
}

.gcp-calculator .gcp-shape:hover .gcp-shape-box {
	transform: translateY(-1px);
}

.gcp-calculator .gcp-shape svg {
	width: 26px;
	height: 26px;
	fill: none;
	stroke: currentColor;
	stroke-width: 1.8;
	stroke-linejoin: round;
}

.gcp-calculator .gcp-shape input:checked + .gcp-shape-box {
	color: var(--gcp-primary);
	background: var(--gcp-primary-soft);
	border-color: var(--gcp-primary);
	box-shadow: inset 0 0 0 1px var(--gcp-primary);
}

.gcp-calculator .gcp-shape input:focus-visible + .gcp-shape-box {
	outline: 2px solid var(--gcp-primary);
	outline-offset: 2px;
}

/* Depth chips: pill buttons. */
.gcp-calculator .gcp-chips {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin: -4px 0 12px;
}

.gcp-calculator .gcp-chip {
	min-height: 44px;
	min-width: 56px;
	padding: 6px 14px;
	font-size: .875rem;
	font-weight: 600;
	color: var(--gcp-text);
	background: var(--gcp-surface);
	border: 1px solid var(--gcp-field);
	border-radius: 999px;
	cursor: pointer;
	transition: transform .15s var(--gcp-ease);
}

.gcp-calculator .gcp-chip:hover {
	transform: translateY(-1px);
}

.gcp-calculator .gcp-chip:active {
	transform: scale(.96);
}

.gcp-calculator .gcp-chip[aria-pressed="true"] {
	color: var(--gcp-on-primary);
	background: var(--gcp-primary);
	border-color: var(--gcp-primary);
}

/* Range. */
.gcp-calculator .gcp-range {
	display: flex;
	align-items: center;
	gap: 12px;
}

.gcp-calculator .gcp-slider {
	flex: 1 1 auto;
	width: 100%;
	min-height: 44px;
	padding: 0;
	accent-color: var(--gcp-primary);
	background: transparent;
	border: 0;
}

.gcp-calculator .gcp-range-out {
	flex: 0 0 3.5em;
	font-weight: 700;
	text-align: right;
}

/* Popover tooltips ("Why does this matter?"). */
.gcp-calculator .gcp-pop {
	position: relative;
	margin: 4px 0 0;
	font-size: .875rem;
}

.gcp-calculator .gcp-pop > summary {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	min-height: 44px;
	padding: 0 2px;
	font-weight: 600;
	color: var(--gcp-primary);
	cursor: pointer;
	list-style: none;
}

.gcp-calculator .gcp-pop > summary::-webkit-details-marker {
	display: none;
}

.gcp-calculator .gcp-pop > p {
	position: absolute;
	top: 100%;
	left: 0;
	z-index: 30;
	width: min(20rem, 88cqi);
	margin: 0;
	padding: 12px 14px;
	font-size: .875rem;
	line-height: 1.5;
	color: var(--gcp-text);
	background: var(--gcp-surface);
	border: 1px solid var(--gcp-border);
	border-radius: var(--gcp-radius);
	box-shadow: var(--gcp-shadow-lift);
	animation: gcp-pop .18s var(--gcp-ease) both;
	transform-origin: top left;
}

/* Collapsible card sections. */
.gcp-calculator .gcp-details > summary {
	display: flex;
	align-items: center;
	gap: 8px;
	min-height: 44px;
	font-weight: 700;
	color: var(--gcp-text);
	cursor: pointer;
	list-style: none;
}

.gcp-calculator .gcp-details > summary::-webkit-details-marker {
	display: none;
}

.gcp-calculator .gcp-details > summary .gcp-ico {
	color: var(--gcp-primary);
}

.gcp-calculator .gcp-details > summary::after {
	content: "";
	width: 8px;
	height: 8px;
	margin-left: auto;
	border-right: 2px solid var(--gcp-muted);
	border-bottom: 2px solid var(--gcp-muted);
	transform: rotate(45deg);
	transition: transform .2s var(--gcp-ease);
}

.gcp-calculator .gcp-details[open] > summary::after {
	transform: rotate(-135deg);
}

.gcp-calculator .gcp-check {
	display: flex;
	gap: 10px;
	align-items: center;
	min-height: 44px;
	padding: 4px 0;
	font-weight: 600;
	cursor: pointer;
}

.gcp-calculator .gcp-check input {
	flex: 0 0 auto;
	width: 22px;
	height: 22px;
	accent-color: var(--gcp-primary);
}

/* ============ Live visuals ============ */

.gcp-calculator .gcp-viz {
	margin: 2px 0 14px;
	padding: 10px;
	background: var(--gcp-surface-2);
	border: 1px dashed var(--gcp-border);
	border-radius: var(--gcp-radius);
}

.gcp-calculator .gcp-viz:empty {
	display: none;
}

.gcp-calculator .gcp-viz svg {
	display: block;
	width: 100%;
	height: auto;
	max-height: 200px;
	overflow: visible;
}

.gcp-calculator .gcp-viz--depth svg {
	max-height: 170px;
}

.gcp-calculator .gcp-v-shape {
	fill: var(--gcp-stone-1);
	stroke: var(--gcp-primary);
	stroke-width: 2;
	stroke-linejoin: round;
}

.gcp-calculator .gcp-v-hole {
	fill: var(--gcp-surface-2);
	stroke: var(--gcp-primary);
	stroke-width: 2;
}

.gcp-calculator .gcp-v-dots {
	fill: var(--gcp-dots);
	opacity: .35;
}

.gcp-calculator .gcp-v-dim {
	stroke: var(--gcp-muted);
	stroke-width: 1;
	fill: none;
}

.gcp-calculator .gcp-v-txt {
	fill: var(--gcp-text);
	font-family: var(--gcp-font);
	font-size: 12px;
	font-weight: 600;
}

.gcp-calculator .gcp-v-txt--muted {
	fill: var(--gcp-muted);
	font-weight: 500;
}

.gcp-calculator .gcp-v-empty .gcp-v-shape {
	opacity: .45;
}

.gcp-calculator .gcp-v-soil {
	fill: var(--gcp-soil);
}

.gcp-calculator .gcp-v-l0 {
	fill: var(--gcp-stone-4);
}

.gcp-calculator .gcp-v-l1 {
	fill: var(--gcp-stone-3);
}

.gcp-calculator .gcp-v-l2 {
	fill: var(--gcp-stone-2);
}

.gcp-calculator .gcp-v-l3 {
	fill: var(--gcp-stone-1);
}

.gcp-calculator .gcp-v-depth {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px 14px;
}

.gcp-calculator .gcp-viz .gcp-v-depth svg {
	flex: 0 0 auto;
	width: 140px;
	max-width: 100%;
	height: auto;
}

.gcp-calculator .gcp-v-legend {
	flex: 1 1 10rem;
	margin: 0;
	padding: 0;
	list-style: none;
	font-size: .875rem;
	font-weight: 600;
}

.gcp-calculator .gcp-v-legend li {
	display: flex;
	align-items: center;
	gap: 8px;
	margin: 0 0 4px;
}

.gcp-calculator .gcp-v-sw {
	flex: 0 0 auto;
	width: 14px;
	height: 14px;
	border-radius: 4px;
	border: 1px solid var(--gcp-border);
}

.gcp-calculator .gcp-v-sw.gcp-v-l0 {
	background: var(--gcp-stone-4);
}

.gcp-calculator .gcp-v-sw.gcp-v-l1 {
	background: var(--gcp-stone-3);
}

.gcp-calculator .gcp-v-sw.gcp-v-l2 {
	background: var(--gcp-stone-2);
}

.gcp-calculator .gcp-v-sw.gcp-v-l3 {
	background: var(--gcp-stone-1);
}

.gcp-calculator .gcp-v-grass {
	stroke: var(--gcp-primary);
	stroke-width: 3;
	stroke-linecap: round;
}

/* ============ Buttons ============ */

.gcp-calculator .gcp-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	min-height: 44px;
	padding: 10px 18px;
	font-size: .9375rem;
	font-weight: 700;
	line-height: 1.2;
	text-decoration: none;
	color: var(--gcp-on-primary);
	background: var(--gcp-primary);
	border: 1px solid var(--gcp-primary);
	border-radius: var(--gcp-radius);
	box-shadow: 0 1px 2px rgba(0, 0, 0, .1);
	cursor: pointer;
	transition: transform .15s var(--gcp-ease), box-shadow .15s var(--gcp-ease);
}

.gcp-calculator .gcp-btn:hover {
	transform: translateY(-1px);
	box-shadow: var(--gcp-shadow-lift);
}

.gcp-calculator .gcp-btn:active {
	transform: scale(.98);
}

.gcp-calculator .gcp-btn--ghost {
	color: var(--gcp-primary);
	background: var(--gcp-surface);
	border-color: var(--gcp-field);
}

.gcp-calculator .gcp-btn--sm {
	min-height: 44px;
	padding: 6px 12px;
	font-size: .875rem;
}

.gcp-calculator .gcp-btn--add {
	width: 100%;
	margin: 0 0 14px;
	border-style: dashed;
	background: transparent;
	box-shadow: none;
}

.gcp-calculator .gcp-btn--accent {
	color: var(--gcp-on-accent);
	background: var(--gcp-accent);
	border-color: var(--gcp-accent);
}

.gcp-calculator .gcp-btn--done,
.gcp-calculator .gcp-btn--done:hover {
	color: var(--gcp-on-primary);
	background: var(--gcp-primary);
	border-color: var(--gcp-primary);
}

.gcp-calculator .gcp-btn .gcp-ico--check {
	animation: gcp-pop .25s var(--gcp-ease) both;
}

.gcp-calculator .gcp-link {
	display: inline-flex;
	align-items: center;
	min-height: 44px;
	padding: 0;
	font-size: .9375rem;
	font-weight: 600;
	color: var(--gcp-primary);
	background: none;
	border: 0;
	text-decoration: underline;
	text-underline-offset: 3px;
	cursor: pointer;
}

.gcp-calculator .gcp-form-foot {
	display: flex;
	justify-content: flex-end;
	margin: 0 0 16px;
}

/* ============ Results ============ */

.gcp-calculator .gcp-results {
	container-type: inline-size;
	container-name: gcpres;
	min-width: 0;
	min-height: 14rem;
}

.gcp-calculator .gcp-bento {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 12px;
	align-items: stretch;
}

.gcp-calculator .gcp-bento > * {
	min-width: 0;
	margin: 0;
}

.gcp-calculator .gcp-card {
	padding: 16px 18px;
	background: var(--gcp-surface);
	border: 1px solid var(--gcp-border);
	border-radius: var(--gcp-radius-card);
	box-shadow: var(--gcp-shadow);
}

.gcp-calculator .gcp-card-h {
	display: flex;
	align-items: center;
	gap: 6px;
	margin: 0 0 10px;
	padding: 0;
	font-size: 13px;
	font-weight: 700;
	letter-spacing: .08em;
	text-transform: uppercase;
	color: var(--gcp-muted);
}

.gcp-calculator .gcp-card--main {
	position: relative;
	min-height: 11rem;
	padding: 20px;
	outline: none;
}

.gcp-calculator .gcp-card--main:focus-visible {
	outline: 2px solid var(--gcp-primary);
	outline-offset: 2px;
}

.gcp-calculator .gcp-hero {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 4px 10px;
	margin: 0 0 4px;
}

.gcp-calculator .gcp-hero-num {
	font-size: clamp(2.5rem, 1.9rem + 3cqi, 3rem);
	font-weight: 800;
	line-height: 1;
	letter-spacing: -.02em;
	color: var(--gcp-accent);
}

.gcp-calculator .gcp-hero-unit {
	font-size: 1.125rem;
	font-weight: 700;
}

.gcp-calculator .gcp-hero-sub {
	margin: 0 0 10px;
	font-size: 1.25rem;
	font-weight: 600;
}

.gcp-calculator .gcp-hero-sub strong {
	font-weight: 800;
}

.gcp-calculator .gcp-meta {
	margin: 0 0 .4em;
	font-size: .875rem;
	color: var(--gcp-muted);
}

.gcp-calculator .gcp-big {
	margin: 0 0 .4em;
	font-size: 1.125rem;
	line-height: 1.4;
}

.gcp-calculator .gcp-num {
	font-size: clamp(1.75rem, 1.4rem + 2cqi, 2.25rem);
	font-weight: 800;
	color: var(--gcp-accent);
}

/* Empty state. */
.gcp-calculator .gcp-empty {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 8px;
	padding: 6px 0 2px;
	text-align: center;
	color: var(--gcp-muted);
}

.gcp-calculator .gcp-empty p {
	max-width: 22rem;
	margin: 0;
}

.gcp-calculator .gcp-empty--msg {
	align-items: flex-start;
	text-align: left;
}

.gcp-calculator .gcp-pile {
	width: 150px;
	height: auto;
}

.gcp-calculator .gcp-pile-sh {
	fill: var(--gcp-border);
}

.gcp-calculator .gcp-pile-body {
	fill: var(--gcp-stone-2);
}

.gcp-calculator .gcp-pile-st {
	fill: var(--gcp-stone-4);
}

/* Warnings: soft amber card. */
.gcp-calculator .gcp-warn {
	display: flex;
	gap: 10px;
	align-items: flex-start;
	margin: 12px 0 0;
	padding: 12px 14px;
	font-size: .9375rem;
	line-height: 1.45;
	color: var(--gcp-warn-text);
	background: var(--gcp-warn-bg);
	border: 1px solid var(--gcp-warn-line);
	border-radius: var(--gcp-radius);
	animation: gcp-rise .3s var(--gcp-ease) both;
}

.gcp-calculator .gcp-warn .gcp-ico {
	width: 20px;
	height: 20px;
	margin-top: 1px;
	color: var(--gcp-accent);
}

.gcp-calculator .gcp-order {
	margin: 0 0 .3em;
	font-size: 1.0625rem;
	line-height: 1.4;
}

.gcp-calculator .gcp-order strong {
	font-size: 1.375rem;
	font-weight: 800;
	color: var(--gcp-text);
}

.gcp-calculator .gcp-dl {
	margin: 0;
}

.gcp-calculator .gcp-dl > div {
	display: flex;
	justify-content: space-between;
	gap: 12px;
	padding: 7px 0;
	border-bottom: 1px solid var(--gcp-border);
}

.gcp-calculator .gcp-dl > div:last-child {
	border-bottom: 0;
}

.gcp-calculator .gcp-dl dt {
	margin: 0;
	font-weight: 400;
	font-size: .9375rem;
	color: var(--gcp-text);
}

.gcp-calculator .gcp-dl dd {
	margin: 0;
	font-weight: 700;
	text-align: right;
	white-space: nowrap;
}

.gcp-calculator .gcp-total dt {
	font-weight: 800;
	font-size: 1.0625rem;
}

.gcp-calculator .gcp-total dd {
	font-weight: 800;
	font-size: 1.375rem;
	color: var(--gcp-accent);
}

.gcp-calculator .gcp-list {
	margin: 12px 0 0;
	padding: 0;
	list-style: none;
}

.gcp-calculator .gcp-list li {
	display: flex;
	justify-content: space-between;
	gap: 12px;
	margin: 0;
	padding: 6px 0;
	font-size: .9375rem;
	border-top: 1px solid var(--gcp-border);
}

.gcp-calculator .gcp-table-scroll {
	overflow-x: auto;
	margin: 12px 0 6px;
}

.gcp-calculator .gcp-mini {
	width: 100%;
	margin: 0;
	border-collapse: collapse;
	font-size: .875rem;
	border: 0;
}

.gcp-calculator .gcp-mini th,
.gcp-calculator .gcp-mini td {
	padding: 7px 6px;
	text-align: left;
	vertical-align: top;
	color: var(--gcp-text);
	background: none;
	border: 0;
	border-bottom: 1px solid var(--gcp-border);
}

.gcp-calculator .gcp-mini thead th {
	font-size: .75rem;
	letter-spacing: .06em;
	text-transform: uppercase;
	color: var(--gcp-muted);
}

.gcp-calculator .gcp-mini th small {
	display: block;
	font-weight: 400;
	color: var(--gcp-muted);
}

.gcp-calculator .gcp-mini tfoot th,
.gcp-calculator .gcp-mini tfoot td {
	font-weight: 800;
	border-bottom: 0;
}

.gcp-calculator .gcp-best th,
.gcp-calculator .gcp-best td {
	background: var(--gcp-primary-soft);
	font-weight: 700;
}

.gcp-calculator .gcp-badge {
	display: inline-block;
	margin-left: 4px;
	padding: 2px 8px;
	font-size: .6875rem;
	font-weight: 800;
	letter-spacing: .04em;
	text-transform: uppercase;
	color: var(--gcp-on-primary);
	background: var(--gcp-primary);
	border-radius: 999px;
}

.gcp-calculator .gcp-waffle {
	margin: 10px 0 0;
}

.gcp-calculator .gcp-waffle svg {
	display: block;
	max-width: 100%;
	height: auto;
	fill: var(--gcp-stone-3);
}

.gcp-calculator .gcp-waffle figcaption {
	font-size: .8125rem;
	color: var(--gcp-muted);
}

.gcp-calculator .gcp-math {
	margin: 10px 0 0;
	padding-left: 1.4em;
}

.gcp-calculator .gcp-math li {
	margin: 0 0 .45em;
}

.gcp-calculator .gcp-math code {
	padding: 0;
	font-family: inherit;
	font-size: .875rem;
	color: var(--gcp-text);
	background: none;
	white-space: normal;
	word-break: break-word;
}

.gcp-calculator .gcp-note {
	margin: 2px 0 0;
	font-size: .8125rem;
	color: var(--gcp-muted);
}

/* Copy / print / share row. */
.gcp-calculator .gcp-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin: 14px 0 0;
	padding-top: 14px;
	border-top: 1px solid var(--gcp-border);
}

.gcp-calculator .gcp-actions .gcp-btn {
	flex: 1 1 auto;
}

.gcp-calculator .gcp-status {
	flex: 1 1 100%;
	margin: 0;
	font-size: .875rem;
	font-weight: 600;
	color: var(--gcp-primary);
}

.gcp-calculator .gcp-status:empty {
	display: none;
}

.gcp-calculator .gcp-copybox {
	flex: 1 1 100%;
	width: 100%;
	min-height: 8rem;
	padding: 10px;
	font-size: .875rem;
	color: var(--gcp-text);
	background: var(--gcp-surface);
	border: 1px solid var(--gcp-field);
	border-radius: var(--gcp-radius);
}

.gcp-calculator .gcp-noscript {
	padding: 12px 14px;
	background: var(--gcp-warn-bg);
	border-radius: var(--gcp-radius);
}

/* Call to action. */
.gcp-calculator .gcp-cta {
	margin: 16px 0 0;
	padding: 20px;
	text-align: center;
	color: var(--gcp-text);
	background: var(--gcp-surface);
	border: 1px solid var(--gcp-border);
	border-radius: var(--gcp-radius-card);
	box-shadow: var(--gcp-shadow);
}

.gcp-calculator .gcp-cta-h {
	margin: 0 0 .25em;
	font-size: 1.1875rem;
	font-weight: 800;
}

/* Phone-only summary bar (fixed, so it never shifts layout). */
.gcp-calculator .gcp-mbar {
	position: fixed;
	left: 12px;
	right: 12px;
	bottom: calc(12px + env(safe-area-inset-bottom, 0px));
	z-index: 60;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	min-height: 56px;
	padding: 10px 16px;
	font-size: 1rem;
	font-weight: 800;
	text-align: left;
	color: var(--gcp-on-primary);
	background: var(--gcp-primary);
	border: 0;
	border-radius: var(--gcp-radius-card);
	box-shadow: 0 10px 30px -8px rgba(0, 0, 0, .45);
	cursor: pointer;
	opacity: 0;
	visibility: hidden;
	transform: translateY(140%);
	transition: transform .28s var(--gcp-ease), opacity .2s ease-out, visibility 0s linear .28s;
}

.gcp-calculator .gcp-mbar--on {
	opacity: 1;
	visibility: visible;
	transform: none;
	transition: transform .28s var(--gcp-ease), opacity .2s ease-out, visibility 0s;
}

.gcp-calculator .gcp-mbar-go {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	font-size: .8125rem;
	font-weight: 600;
	white-space: nowrap;
}

@media (min-width: 768px) {
	.gcp-calculator .gcp-mbar {
		display: none;
	}
}

/* ============ Motion ============ */

.gcp-calculator .gcp-appear {
	animation: gcp-rise .32s var(--gcp-ease) both;
}

@keyframes gcp-rise {
	from {
		opacity: 0;
		transform: translateY(8px);
	}

	to {
		opacity: 1;
		transform: none;
	}
}

@keyframes gcp-fade {
	from {
		opacity: 0;
	}

	to {
		opacity: 1;
	}
}

@keyframes gcp-pop {
	from {
		opacity: 0;
		transform: translateY(-4px) scale(.97);
	}

	to {
		opacity: 1;
		transform: none;
	}
}

@keyframes gcp-shake {
	0%,
	100% {
		transform: none;
	}

	20% {
		transform: translateX(-5px);
	}

	40% {
		transform: translateX(5px);
	}

	60% {
		transform: translateX(-3px);
	}

	80% {
		transform: translateX(2px);
	}
}

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

/* ============ Wider containers ============ */

@container gcp (max-width: 340px) {
	.gcp-calculator .gcp-shapes {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}
}

@container gcp (min-width: 480px) {
	.gcp-calculator .gcp-grid2 {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.gcp-calculator .gcp-shapes {
		grid-template-columns: repeat(7, minmax(0, 1fr));
	}

	.gcp-calculator .gcp-btn--add {
		width: auto;
	}
}

@container gcp (min-width: 760px) {
	.gcp-calculator .gcp-body {
		display: grid;
		grid-template-columns: minmax(0, 58fr) minmax(0, 42fr);
		gap: 24px;
		align-items: start;
	}

	.gcp-calculator .gcp-results {
		position: sticky;
		top: 16px;
	}

	/* In the narrower form column, keep the shape tiles readable. */
	.gcp-calculator .gcp-shapes {
		grid-template-columns: repeat(4, minmax(0, 1fr));
	}
}

@container gcp (min-width: 1100px) {
	.gcp-calculator .gcp-shapes {
		grid-template-columns: repeat(7, minmax(0, 1fr));
	}
}

@container gcpres (min-width: 420px) {
	.gcp-calculator .gcp-bento {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.gcp-calculator .gcp-bento > .gcp-card--main,
	.gcp-calculator .gcp-bento > .gcp-span {
		grid-column: 1 / -1;
	}
}

@media (min-width: 600px) {
	.gcp-calculator {
		padding: 20px;
	}
}

@media (max-width: 420px) {
	.gcp-calculator {
		padding: 12px;
	}

	.gcp-calculator .gcp-bar {
		padding-left: 10px;
	}
}

@media (forced-colors: active) {
	.gcp-calculator .gcp-pill {
		background: Highlight;
	}

	.gcp-calculator .gcp-shape input:checked + .gcp-shape-box,
	.gcp-calculator .gcp-chip[aria-pressed="true"] {
		outline: 2px solid Highlight;
	}
}