/* Peptide Reconstitution Calculator — front end
   Scoped under .prc so host themes do not bleed in. */

.prc {
	--prc-accent: #3458fa;
	--prc-accent-2: #ec4899;
	--prc-surface: #ffffff;
	--prc-panel: #f2f6f5;
	--prc-ink: #0e1c1a;
	--prc-muted: #5b716d;
	--prc-line: rgba(14, 28, 26, 0.12);
	--prc-line-soft: rgba(14, 28, 26, 0.07);
	--prc-warn: #a86412;
	--prc-warn-bg: #fdf3e0;
	--prc-danger: #b03434;
	--prc-danger-bg: #fceeed;
	--prc-metal: #c9d4d2;
	--prc-radius: 14px;
	--prc-mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
	--prc-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

	font-family: var(--prc-sans);
	color: var(--prc-ink);
	line-height: 1.5;
	max-width: 900px;
	margin: 0 auto;
}

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

.prc[data-prc-theme="dark"] {
	--prc-surface: #111b1f;
	--prc-panel: #18262b;
	--prc-ink: #e9f3f1;
	--prc-muted: #93a8a5;
	--prc-line: rgba(233, 243, 241, 0.16);
	--prc-line-soft: rgba(233, 243, 241, 0.09);
	--prc-warn: #f0b45c;
	--prc-warn-bg: rgba(240, 180, 92, 0.12);
	--prc-danger: #f08d8a;
	--prc-danger-bg: rgba(240, 141, 138, 0.12);
	--prc-metal: #43585c;
}

@media (prefers-color-scheme: dark) {
	.prc[data-prc-theme="auto"] {
		--prc-surface: #111b1f;
		--prc-panel: #18262b;
		--prc-ink: #e9f3f1;
		--prc-muted: #93a8a5;
		--prc-line: rgba(233, 243, 241, 0.16);
		--prc-line-soft: rgba(233, 243, 241, 0.09);
		--prc-warn: #f0b45c;
		--prc-warn-bg: rgba(240, 180, 92, 0.12);
		--prc-danger: #f08d8a;
		--prc-danger-bg: rgba(240, 141, 138, 0.12);
		--prc-metal: #43585c;
	}
}

.prc-card {
	background: var(--prc-surface);
	border: 1px solid var(--prc-line);
	border-radius: var(--prc-radius);
	overflow: hidden;
}

/* Header */

.prc-head {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 16px;
	flex-wrap: wrap;
	padding: 20px 22px 16px;
	border-bottom: 1px solid var(--prc-line-soft);
}

.prc-eyebrow {
	margin: 0 0 2px;
	font-size: 11px;
	font-weight: 600;
	letter-spacing: 0.13em;
	text-transform: uppercase;
	color: var(--prc-accent);
}

.prc-title {
	margin: 0;
	font-size: 21px;
	font-weight: 600;
	letter-spacing: -0.01em;
	line-height: 1.2;
	color: var(--prc-ink);
}

.prc-modes {
	display: inline-flex;
	background: var(--prc-panel);
	border: 1px solid var(--prc-line-soft);
	border-radius: 999px;
	padding: 3px;
}

.prc-mode-hint {
	margin: 0;
	padding: 10px 22px 0;
	font-size: 13px;
	line-height: 1.5;
	color: var(--prc-muted);
}

.prc-mode {
	appearance: none;
	border: 0;
	background: transparent;
	font: inherit;
	font-size: 13px;
	font-weight: 500;
	color: var(--prc-muted);
	padding: 7px 13px;
	border-radius: 999px;
	cursor: pointer;
	transition: background 0.15s ease, color 0.15s ease;
}

.prc-mode[aria-selected="true"] {
	background: var(--prc-surface);
	color: var(--prc-ink);
	box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

/* Body grid */

.prc-body {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 220px;
	gap: 0;
}

.prc-inputs {
	padding: 20px 22px;
	border-right: 1px solid var(--prc-line-soft);
	display: flex;
	flex-direction: column;
	gap: 14px;
}

.prc-stage {
	padding: 18px 12px 14px;
	background: var(--prc-panel);
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 10px;
}

@media (max-width: 720px) {
	.prc-body {
		grid-template-columns: minmax(0, 1fr);
	}

	.prc-inputs {
		border-right: 0;
		border-bottom: 1px solid var(--prc-line-soft);
	}

	.prc-stage {
		border-top: 1px solid var(--prc-line-soft);
	}
}

/* Presets */

.prc-presets-label,
.prc-field label {
	display: block;
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--prc-muted);
	margin-bottom: 6px;
}

.prc-preset-chips {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}

.prc-chip {
	appearance: none;
	font: inherit;
	font-size: 12.5px;
	background: var(--prc-panel);
	color: var(--prc-ink);
	border: 1px solid var(--prc-line);
	border-radius: 999px;
	padding: 5px 12px;
	cursor: pointer;
	transition: border-color 0.15s ease, color 0.15s ease;
}

.prc-chip:hover,
.prc-chip:focus-visible {
	border-color: var(--prc-accent);
	color: var(--prc-accent);
}

/* Fields */

.prc-combo {
	display: flex;
	align-items: stretch;
	border: 1px solid var(--prc-line);
	border-radius: 10px;
	background: var(--prc-surface);
	overflow: hidden;
	transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.prc-combo:focus-within {
	border-color: var(--prc-accent);
	box-shadow: 0 0 0 3px color-mix(in srgb, var(--prc-accent) 18%, transparent);
}

.prc input[type="number"],
.prc select {
	appearance: none;
	-webkit-appearance: none;
	font: inherit;
	color: var(--prc-ink);
	background: transparent;
	border: 0;
	outline: none;
	min-width: 0;
	height: 42px;
	padding: 0 12px;
	margin: 0;
	border-radius: 0;
}

.prc input[type="number"] {
	flex: 1 1 auto;
	width: 100%;
	font-family: var(--prc-mono);
	font-size: 16px;
	font-variant-numeric: tabular-nums;
	-moz-appearance: textfield;
}

.prc input[type="number"]::-webkit-outer-spin-button,
.prc input[type="number"]::-webkit-inner-spin-button {
	-webkit-appearance: none;
	margin: 0;
}

.prc-combo select,
.prc-suffix {
	flex: 0 0 auto;
	border-left: 1px solid var(--prc-line-soft);
	background: var(--prc-panel);
	color: var(--prc-muted);
	font-size: 13px;
	font-weight: 500;
	display: flex;
	align-items: center;
	padding: 0 12px;
	cursor: pointer;
}

.prc-suffix {
	cursor: default;
}

.prc-field > select.prc-syringe {
	width: 100%;
	border: 1px solid var(--prc-line);
	border-radius: 10px;
	background: var(--prc-surface);
	font-size: 14px;
	cursor: pointer;
}

.prc-field > select.prc-syringe:focus-visible {
	border-color: var(--prc-accent);
	box-shadow: 0 0 0 3px color-mix(in srgb, var(--prc-accent) 18%, transparent);
}

.prc-combo.is-invalid {
	border-color: var(--prc-danger);
}

/* Readout */

.prc-result {
	display: grid;
	grid-template-columns: minmax(190px, auto) minmax(0, 1fr);
	align-items: center;
	gap: 20px;
	padding: 18px 22px;
	border-top: 1px solid var(--prc-line-soft);
}

@media (max-width: 720px) {
	.prc-result {
		grid-template-columns: minmax(0, 1fr);
		gap: 14px;
	}
}

.prc-readout {
	padding: 0;
}

.prc-readout-main {
	display: flex;
	align-items: baseline;
	gap: 8px;
}

.prc-readout-value {
	font-family: var(--prc-mono);
	font-size: 42px;
	font-weight: 600;
	line-height: 1;
	letter-spacing: -0.02em;
	font-variant-numeric: tabular-nums;
	color: var(--prc-accent);
}

.prc-readout-unit {
	font-size: 15px;
	font-weight: 500;
	color: var(--prc-muted);
}

.prc-readout-sub {
	margin: 8px 0 0;
	font-family: var(--prc-mono);
	font-size: 13px;
	color: var(--prc-muted);
}

.prc.is-error .prc-readout-value {
	color: var(--prc-muted);
}

/* Syringe */

.prc-syringe-svg svg {
	display: block;
	height: clamp(300px, 42vh, 430px);
	width: auto;
	max-width: 100%;
	overflow: visible;
	touch-action: none;
}

.prc-hint {
	margin: 0;
	text-align: center;
	max-width: 190px;
	font-size: 11.5px;
	color: var(--prc-muted);
	opacity: 0.85;
}

.prc-plunger {
	cursor: grab;
}

.prc-plunger:active {
	cursor: grabbing;
}

.prc-plunger:focus-visible .prc-thumbpad {
	stroke: var(--prc-accent);
	stroke-width: 2.5;
}

.prc-fluid,
.prc-plunger rect {
	transition: y 0.18s ease, height 0.18s ease;
}

.prc.is-dragging .prc-fluid,
.prc.is-dragging .prc-plunger rect {
	transition: none;
}

@media (prefers-reduced-motion: reduce) {
	.prc-fluid,
	.prc-plunger rect,
	.prc-mode {
		transition: none;
	}
}

/* Stats */

.prc-stats {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
	gap: 1px;
	background: var(--prc-line-soft);
	border: 1px solid var(--prc-line-soft);
	border-radius: 12px;
	overflow: hidden;
}

.prc-stat {
	background: var(--prc-surface);
	padding: 10px 12px;
}

.prc-stat-label {
	display: block;
	font-size: 11px;
	font-weight: 600;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: var(--prc-muted);
	margin-bottom: 3px;
}

.prc-stat-value {
	font-family: var(--prc-mono);
	font-size: 15px;
	font-weight: 600;
	font-variant-numeric: tabular-nums;
	color: var(--prc-ink);
}

/* Alerts */

.prc-alerts:empty {
	display: none;
}

.prc-alert {
	display: flex;
	gap: 9px;
	align-items: flex-start;
	font-size: 13.5px;
	padding: 11px 22px;
	border-top: 1px solid var(--prc-line-soft);
}

.prc-alert-warn {
	background: var(--prc-warn-bg);
	color: var(--prc-warn);
}

.prc-alert-note {
	color: var(--prc-muted);
}

.prc-alert-error {
	background: var(--prc-danger-bg);
	color: var(--prc-danger);
}

.prc-alert-mark {
	font-weight: 700;
	line-height: 1.4;
}

/* Footer */

.prc-foot {
	padding: 14px 22px 18px;
	border-top: 1px solid var(--prc-line-soft);
}

.prc-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 12px;
}

.prc-btn {
	appearance: none;
	font: inherit;
	font-size: 13.5px;
	font-weight: 500;
	color: var(--prc-ink);
	background: var(--prc-surface);
	border: 1px solid var(--prc-line);
	border-radius: 9px;
	padding: 8px 14px;
	cursor: pointer;
	transition: border-color 0.15s ease, color 0.15s ease;
}

.prc-btn:hover,
.prc-btn:focus-visible {
	border-color: var(--prc-accent);
	color: var(--prc-accent);
}

.prc-btn.is-done {
	border-color: var(--prc-accent);
	color: var(--prc-accent);
}

.prc-disclaimer {
	margin: 0;
	font-size: 12px;
	line-height: 1.55;
	color: var(--prc-muted);
}

.prc :focus-visible {
	outline: 2px solid var(--prc-accent);
	outline-offset: 2px;
}

@media (max-width: 560px) {
	.prc-modes {
		width: 100%;
	}

	.prc-mode {
		flex: 1 1 0;
		padding: 7px 6px;
		font-size: 12.5px;
	}
}

/* Standalone converter */

.prc-conv {
	padding: 18px 22px 4px;
	display: flex;
	flex-direction: column;
	gap: 16px;
}

.prc-conv-pair {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 32px minmax(0, 1fr);
	align-items: end;
	gap: 10px;
}

.prc-conv-eq {
	font-family: var(--prc-mono);
	font-size: 18px;
	color: var(--prc-muted);
	text-align: center;
	line-height: 42px;
}

@media (max-width: 560px) {
	.prc-conv-pair {
		grid-template-columns: minmax(0, 1fr);
	}

	.prc-conv-eq {
		line-height: 1;
		text-align: left;
	}
}

.prc-conv-factor {
	background: var(--prc-panel);
	border-radius: 12px;
	padding: 12px 14px;
}

.prc-conv-chips {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}

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

.prc-conv-custom {
	margin-top: 10px;
	max-width: 260px;
}

.prc-conv-root .prc-stats {
	grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

/* Full page width
   ---------------
   Steps out of the article column to the width the rest of the site uses. A
   shortcode has no say in how wide its container is, so this is measured from
   the viewport rather than inherited. */

.prc {
	width: min(
		calc(100vw - 2 * var(--gutter, 24px)),
		calc(var(--wrap, 1480px) - 2 * var(--gutter, 24px))
	);
	max-width: none;
	margin-left: 50%;
	transform: translateX(-50%);
}

/* Where the host has already given it the width, sit still. */
.prc[data-width="inline"] {
	width: auto;
	max-width: 900px;
	margin-left: auto;
	margin-right: auto;
	transform: none;
}

/* Syringe picker
   --------------
   Drawn to scale against one another, because the choice is about physical
   size and a list of names does not show that. */

.prc-field--wide {
	grid-column: 1 / -1;
}

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

.prc-syringe-picker {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(168px, 1fr));
	gap: 9px;
	margin-top: 6px;
}

.prc-sy-card {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 2px;
	font: inherit;
	text-align: left;
	padding: 11px 13px 12px;
	border: 1px solid var(--prc-line);
	border-radius: 11px;
	background: var(--prc-surface);
	color: var(--prc-ink);
	cursor: pointer;
	transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.prc-sy-card:hover {
	border-color: var(--prc-accent);
	transform: translateY(-1px);
}

.prc-sy-card:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px rgba(52, 88, 250, 0.22);
	border-color: var(--prc-accent);
}

.prc-sy-card[aria-checked="true"] {
	border-color: var(--prc-accent);
	box-shadow: inset 0 0 0 1px var(--prc-accent);
	background: color-mix(in srgb, var(--prc-accent) 5%, var(--prc-surface));
}

.prc-sy-card__art {
	width: 100%;
	height: auto;
	max-height: 34px;
	margin-bottom: 5px;
	display: block;
}

.prc-sy-card__name {
	font-size: 12.5px;
	font-weight: 600;
	line-height: 1.25;
}

.prc-sy-card__sub {
	font-family: var(--prc-mono);
	font-size: 10.5px;
	color: var(--prc-muted);
}

/* The drawing itself */

.prc-sy-barrel {
	fill: none;
	stroke: var(--prc-metal);
	stroke-width: 1.4;
}

.prc-sy-card[aria-checked="true"] .prc-sy-barrel {
	stroke: var(--prc-accent);
}

.prc-sy-flange,
.prc-sy-hub {
	fill: var(--prc-metal);
}

.prc-sy-card[aria-checked="true"] .prc-sy-flange,
.prc-sy-card[aria-checked="true"] .prc-sy-hub {
	fill: var(--prc-accent);
}

.prc-sy-needle {
	stroke: var(--prc-metal);
	stroke-width: 1.6;
	stroke-linecap: round;
}

.prc-sy-card[aria-checked="true"] .prc-sy-needle {
	stroke: var(--prc-accent);
}

.prc-sy-tick {
	stroke: var(--prc-metal);
	stroke-width: 0.9;
	opacity: 0.75;
}

@media (prefers-reduced-motion: reduce) {
	.prc-sy-card {
		transition: none;
	}
}