/**
 * QR Code Frontend Generator — frontend styles (MLabs CI).
 *
 * All selectors are scoped under .ml-qr to avoid bleeding into the host
 * theme. Uses CSS custom properties for themeability. No web fonts are
 * loaded — the plugin inherits the host site's system font stack.
 */

.ml-qr {
	/* ---- CI palette ------------------------------------------------- */
	--ml-qr-primary: #e9453a;
	--ml-qr-secondary: #2750E1;
	--ml-qr-lemmonary: #FFE156;

	--ml-qr-body: #2C2C2C;
	--ml-qr-body-alt: #FCFCFC;
	--ml-qr-paragraph: #1C1C1C;
	--ml-qr-paragraph-alt: #757575;
	--ml-qr-meta: #5C5C5C;

	--ml-qr-bg: transparent;
	--ml-qr-bg-alt: #111111;
	--ml-qr-midground: #F7F7F7;
	--ml-qr-midground-alt: #ececec;
	--ml-qr-surface: #FFFFFF;

	--ml-qr-border: #7C7C7C;
	--ml-qr-border-alt: #E0E0E0;

	/* ---- semantic tokens ------------------------------------------- */
	--ml-qr-accent: var(--ml-qr-primary);
	--ml-qr-ink: var(--ml-qr-bg-alt);
	--ml-qr-ink-text: var(--ml-qr-body-alt);
	--ml-qr-text: var(--ml-qr-paragraph);
	--ml-qr-text-muted: var(--ml-qr-paragraph-alt);
	--ml-qr-text-meta: var(--ml-qr-meta);

	--ml-qr-danger: #9f1239;
	--ml-qr-danger-bg: #fef2f2;
	--ml-qr-focus: color-mix(in srgb, var(--ml-qr-accent) 35%, transparent);

	/* ---- radius ---------------------------------------------------- */
	--ml-qr-radius-pill: 9999px;
	--ml-qr-radius-lg: 20px;
	--ml-qr-radius: 14px;
	--ml-qr-radius-sm: 10px;
	--ml-qr-radius-xs: 6px;

	/* ---- spacing scale --------------------------------------------- */
	--ml-qr-sp-10: 0.5rem;
	--ml-qr-sp-20: clamp(0.875rem, 0.82rem + 0.25vw, 1rem);
	--ml-qr-sp-30: clamp(1.125rem, 1.03rem + 0.47vw, 1.5rem);
	--ml-qr-sp-40: clamp(1.5rem, 1.39rem + 0.56vw, 2rem);
	--ml-qr-sp-50: clamp(2.25rem, 2.02rem + 1.17vw, 3rem);
	--ml-qr-sp-60: clamp(3rem, 2.7rem + 1.5vw, 4rem);
	--ml-qr-sp-70: clamp(3.75rem, 3.4rem + 1.75vw, 5rem);
	--ml-qr-sp-80: 5.06rem;

	/* ---- fluid typography ------------------------------------------ */
	--ml-qr-fs-tiny: clamp(0.875rem, 0.84rem + 0.18vw, 1rem);
	--ml-qr-fs-tiny-plus: clamp(1rem, 0.97rem + 0.15vw, 1.125rem);
	--ml-qr-fs-small: clamp(1.125rem, 1.09rem + 0.18vw, 1.25rem);
	--ml-qr-fs-small-plus: clamp(1.35rem, 1.3rem + 0.25vw, 1.5rem);
	--ml-qr-fs-medium: clamp(1.5rem, 1.4rem + 0.47vw, 1.875rem);
	--ml-qr-fs-large: clamp(2.25rem, 2.08rem + 0.84vw, 3rem);
	--ml-qr-fs-large-plus: clamp(2.75rem, 2.58rem + 0.84vw, 3.5rem);

	/* ---- shadows --------------------------------------------------- */
	--ml-qr-shadow-natural: 6px 6px 9px rgba(0, 0, 0, 0.2);
	--ml-qr-shadow-deep: 12px 12px 50px rgba(0, 0, 0, 0.4);
	--ml-qr-shadow-sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);
	--ml-qr-shadow-crisp: 6px 6px 0px rgb(0, 0, 0);

	/* ---- font stack ------------------------------------------------ */
	--ml-qr-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
		"Helvetica Neue", Arial, sans-serif;

	/* ---- base styles ---------------------------------------------- */
	box-sizing: border-box;
	color: var(--ml-qr-text);
	font-family: var(--ml-qr-font);
	font-size: var(--ml-qr-fs-tiny-plus);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

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

/* ---- card wrapper (transparent, theme bg shines through) ---------- */

.ml-qr__card {
	background: var(--ml-qr-bg);
	border: 0;
	border-radius: var(--ml-qr-radius-lg);
	overflow: hidden;
}

/* ---- step indicator ---------------------------------------------- */

.ml-qr__steps {
	padding: var(--ml-qr-sp-30) var(--ml-qr-sp-30) 0;
}

.ml-qr__steps-list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--ml-qr-sp-10);
}

.ml-qr__step {
	display: flex;
	align-items: center;
	justify-content: flex-start;
	gap: 10px;
	padding: 12px 16px;
	background: var(--ml-qr-surface);
	border: 1px solid var(--ml-qr-border-alt);
	border-radius: var(--ml-qr-radius-pill);
	color: var(--ml-qr-text-meta);
	cursor: default;
	user-select: none;
	transition: background-color .18s ease, color .18s ease, border-color .18s ease;
}

.ml-qr__step.is-done {
	cursor: pointer;
}

.ml-qr__step.is-done:hover {
	border-color: var(--ml-qr-accent);
	color: var(--ml-qr-text);
}

.ml-qr__step.is-active {
	background: var(--ml-qr-ink);
	color: var(--ml-qr-ink-text);
	border-color: var(--ml-qr-ink);
}

.ml-qr__step-index {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 24px;
	height: 24px;
	border-radius: 9999px;
	background: var(--ml-qr-midground-alt);
	color: var(--ml-qr-text);
	font-size: 12px;
	font-weight: 700;
}

.ml-qr__step.is-active .ml-qr__step-index {
	background: rgba(255, 255, 255, 0.2);
	color: #fff;
}

.ml-qr__step-label {
	font-weight: 700;
	font-size: 12px;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	min-width: 0;
}

/* ---- step indicator: tablet ---- */

@media (max-width: 600px) {
	.ml-qr__steps {
		padding: var(--ml-qr-sp-20) var(--ml-qr-sp-20) 0;
	}

	.ml-qr__steps-list {
		gap: 6px;
	}

	.ml-qr__step {
		gap: 8px;
		padding: 8px 10px;
		justify-content: center;
	}

	.ml-qr__step-index {
		width: 22px;
		height: 22px;
		flex: 0 0 auto;
	}

	.ml-qr__step-label {
		font-size: 11px;
		letter-spacing: 0.04em;
	}
}

/* ---- step indicator: phone ---- */

@media (max-width: 420px) {
	.ml-qr__step {
		padding: 8px;
	}

	/* On very small screens, hide labels of inactive steps and let the
	   active step keep its label so users always know where they are. */
	.ml-qr__step:not(.is-active) .ml-qr__step-label {
		display: none;
	}

	.ml-qr__step.is-active {
		justify-content: flex-start;
	}

	.ml-qr__step:not(.is-active) {
		padding: 8px;
	}
}

/* ---- body / panels ----------------------------------------------- */

.ml-qr__body {
	padding: var(--ml-qr-sp-30);
}

.ml-qr__panel {
	animation: ml-qr-fade .22s ease both;
}

@media (prefers-reduced-motion: reduce) {
	.ml-qr__panel { animation: none; }
}

@keyframes ml-qr-fade {
	from { opacity: 0; transform: translateY(4px); }
	to   { opacity: 1; transform: none; }
}

.ml-qr__panel-title {
	margin: 0 0 var(--ml-qr-sp-20);
	font-family: inherit;
	font-size: var(--ml-qr-fs-small-plus);
	font-weight: 700;
	line-height: 1.3;
	color: var(--ml-qr-paragraph);
}

/* ---- type grid --------------------------------------------------- */

.ml-qr__types {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
	gap: 12px;
}

.ml-qr__type {
	appearance: none;
	background: var(--ml-qr-surface);
	border: 1px solid var(--ml-qr-border-alt);
	border-radius: var(--ml-qr-radius);
	padding: 16px 18px;
	display: flex;
	align-items: center;
	gap: 14px;
	text-align: left;
	color: inherit;
	cursor: pointer;
	font: inherit;
	transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease, color .18s ease;
}

.ml-qr__type:hover {
	border-color: var(--ml-qr-accent);
	color: var(--ml-qr-paragraph);
	transform: translateY(-1px);
	box-shadow: var(--ml-qr-shadow-sharp);
}

.ml-qr__type:focus-visible {
	outline: 3px solid var(--ml-qr-focus);
	outline-offset: 2px;
	border-color: var(--ml-qr-accent);
}

.ml-qr__type-icon {
	display: inline-flex;
	width: 42px;
	height: 42px;
	align-items: center;
	justify-content: center;
	border-radius: 12px;
	background: var(--ml-qr-midground);
	color: var(--ml-qr-accent);
	flex: 0 0 auto;
	transition: background-color .18s ease, color .18s ease;
}

.ml-qr__type:hover .ml-qr__type-icon {
	background: var(--ml-qr-accent);
	color: var(--ml-qr-body-alt);
}

.ml-qr__type-icon svg {
	width: 20px;
	height: 20px;
}

.ml-qr__type-text {
	display: flex;
	flex-direction: column;
	gap: 2px;
	min-width: 0;
}

.ml-qr__type-label {
	font-weight: 700;
	font-size: var(--ml-qr-fs-tiny-plus);
	color: var(--ml-qr-paragraph);
	line-height: 1.3;
}

.ml-qr__type-desc {
	font-size: var(--ml-qr-fs-tiny);
	color: var(--ml-qr-text-meta);
}

/* ---- customize grid ---------------------------------------------- */

.ml-qr__grid {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(260px, 0.8fr);
	gap: var(--ml-qr-sp-30);
	align-items: start;
}

@media (max-width: 720px) {
	.ml-qr__grid {
		grid-template-columns: 1fr;
	}
}

.ml-qr__column--preview {
	position: sticky;
	top: 16px;
}

/* ---- form fields ------------------------------------------------- */

.ml-qr__form {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 14px 12px;
	margin-bottom: var(--ml-qr-sp-30);
}

.ml-qr__field {
	grid-column: 1 / -1;
	display: flex;
	flex-direction: column;
	gap: 6px;
	min-width: 0;
}

.ml-qr__field--half {
	grid-column: span 1;
}

/* Align checkbox fields to the bottom of their grid row so they sit on
   the same baseline as a sibling input/select that has a label above. */
.ml-qr__field--checkbox {
	justify-content: flex-end;
}

@media (max-width: 480px) {
	.ml-qr__field--half {
		grid-column: 1 / -1;
	}

	/* On stacked layout the checkbox no longer needs to be pushed down. */
	.ml-qr__field--checkbox {
		justify-content: flex-start;
	}
}

.ml-qr__label {
	font-size: var(--ml-qr-fs-tiny);
	font-weight: 700;
	color: var(--ml-qr-paragraph);
	line-height: 1.3;
}

.ml-qr__form input[type="text"],
.ml-qr__form input[type="url"],
.ml-qr__form input[type="email"],
.ml-qr__form input[type="tel"],
.ml-qr__form input[type="number"],
.ml-qr__form input[type="date"],
.ml-qr__form input[type="time"],
.ml-qr__form select,
.ml-qr__form textarea {
	width: 100%;
	padding: 12px 14px;
	border: 1px solid var(--ml-qr-border-alt);
	border-radius: var(--ml-qr-radius-sm);
	background: var(--ml-qr-surface);
	color: var(--ml-qr-paragraph);
	font: inherit;
	font-size: var(--ml-qr-fs-tiny-plus);
	line-height: 1.4;
	transition: border-color .15s ease, box-shadow .15s ease;
}

.ml-qr__form textarea {
	resize: vertical;
	min-height: 88px;
	line-height: 1.5;
}

.ml-qr__form input:focus,
.ml-qr__form select:focus,
.ml-qr__form textarea:focus {
	outline: none;
	border-color: var(--ml-qr-accent);
	box-shadow: 0 0 0 3px var(--ml-qr-focus);
}

.ml-qr__form input::placeholder,
.ml-qr__form textarea::placeholder {
	color: var(--ml-qr-text-muted);
}

.ml-qr__checkbox {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 8px 0;
	font-size: var(--ml-qr-fs-tiny);
	color: var(--ml-qr-paragraph);
	cursor: pointer;
}

.ml-qr__checkbox input {
	accent-color: var(--ml-qr-accent);
}

/* ---- style section ---------------------------------------------- */

.ml-qr__styles {
	border: 1px solid var(--ml-qr-border-alt);
	border-radius: var(--ml-qr-radius);
	padding: 18px 20px 20px;
	margin: 0;
	background: var(--ml-qr-surface);
}

.ml-qr__legend {
	padding: 0 6px;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--ml-qr-text-meta);
}

.ml-qr__styles-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--ml-qr-sp-20);
	margin-top: 8px;
}

.ml-qr__style-group {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.ml-qr__style-label {
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: var(--ml-qr-text-meta);
}

.ml-qr__style-options,
.ml-qr__color-swatches {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

/* ---- pills (style choosers) ------------------------------------- */

.ml-qr__pill {
	position: relative;
	display: inline-flex;
	align-items: center;
	padding: 9px 16px;
	border: 1px solid var(--ml-qr-border-alt);
	border-radius: var(--ml-qr-radius-pill);
	background: var(--ml-qr-surface);
	cursor: pointer;
	font-size: var(--ml-qr-fs-tiny);
	font-weight: 600;
	color: var(--ml-qr-paragraph);
	transition: all .18s ease;
}

.ml-qr__pill input {
	position: absolute;
	opacity: 0;
	pointer-events: none;
}

.ml-qr__pill:hover {
	border-color: var(--ml-qr-accent);
	color: var(--ml-qr-paragraph);
}

.ml-qr__pill:has(input:checked) {
	background: var(--ml-qr-ink);
	color: var(--ml-qr-ink-text);
	border-color: var(--ml-qr-ink);
}

.ml-qr__pill:has(input:checked):hover {
	background: var(--ml-qr-accent);
	border-color: var(--ml-qr-accent);
}

.ml-qr__pill:has(input:focus-visible) {
	outline: 3px solid var(--ml-qr-focus);
	outline-offset: 2px;
}

/* ---- color swatches --------------------------------------------- */

.ml-qr__swatch {
	position: relative;
	width: 36px;
	height: 36px;
	border-radius: 10px;
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	transition: transform .15s ease, box-shadow .15s ease;
}

.ml-qr__swatch input {
	position: absolute;
	opacity: 0;
	pointer-events: none;
}

.ml-qr__swatch-chip {
	width: 100%;
	height: 100%;
	border-radius: 10px;
	box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.08) inset;
}

.ml-qr__swatch:has(input:checked) {
	box-shadow: 0 0 0 3px var(--ml-qr-midground), 0 0 0 5px var(--ml-qr-accent);
}

.ml-qr__swatch:has(input:focus-visible) {
	box-shadow: 0 0 0 3px var(--ml-qr-midground), 0 0 0 5px var(--ml-qr-accent);
}

/* ---- preview ---------------------------------------------------- */

.ml-qr__preview-wrap {
	background: #ffffff;
	border: 1px solid var(--ml-qr-border-alt);
	border-radius: var(--ml-qr-radius);
	padding: 18px;
	display: flex;
	align-items: center;
	justify-content: center;
	aspect-ratio: 1 / 1;
	box-shadow: var(--ml-qr-shadow-sharp);
}

.ml-qr__preview,
.ml-qr__preview svg,
.ml-qr__preview canvas {
	width: 100%;
	height: 100%;
	display: block;
}

.ml-qr__privacy {
	margin: 10px 0 0;
	font-size: 12px;
	color: var(--ml-qr-text-meta);
	text-align: center;
}

/* ---- alerts ----------------------------------------------------- */

.ml-qr__alert {
	margin-top: var(--ml-qr-sp-20);
	padding: 12px 16px;
	border-radius: var(--ml-qr-radius-sm);
	background: var(--ml-qr-danger-bg);
	color: var(--ml-qr-danger);
	font-size: var(--ml-qr-fs-tiny);
	line-height: 1.5;
	border: 1px solid color-mix(in srgb, var(--ml-qr-danger) 30%, transparent);
}

/* ---- actions / buttons ------------------------------------------ */

.ml-qr__actions {
	display: flex;
	justify-content: space-between;
	gap: 10px;
	margin-top: var(--ml-qr-sp-30);
	flex-wrap: wrap;
}

.ml-qr__button {
	appearance: none;
	background: var(--ml-qr-ink);
	color: var(--ml-qr-ink-text);
	border: 0;
	padding: 1.334em 2.667em;
	border-radius: var(--ml-qr-radius-pill);
	font: inherit;
	font-size: var(--ml-qr-fs-tiny-plus);
	font-weight: 700;
	line-height: 1;
	cursor: pointer;
	transition: background-color .18s ease, color .18s ease, box-shadow .18s ease, transform .18s ease;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	text-decoration: none;
	letter-spacing: 0.01em;
}

.ml-qr__button:hover {
	background: var(--ml-qr-accent);
	color: var(--ml-qr-ink-text);
}

.ml-qr__button:focus-visible {
	outline: 3px solid var(--ml-qr-focus);
	outline-offset: 3px;
}

.ml-qr__button:active {
	transform: translateY(1px);
}

.ml-qr__button:disabled {
	opacity: 0.4;
	cursor: not-allowed;
	background: var(--ml-qr-ink);
	color: var(--ml-qr-ink-text);
}

.ml-qr__button--primary {
	background: var(--ml-qr-ink);
	color: var(--ml-qr-ink-text);
}

.ml-qr__button--ghost {
	background: transparent;
	color: var(--ml-qr-paragraph);
	border: 1px solid var(--ml-qr-border-alt);
	padding: calc(1.334em - 1px) calc(2.667em - 1px);
}

.ml-qr__button--ghost:hover {
	background: transparent;
	color: var(--ml-qr-accent);
	border-color: var(--ml-qr-accent);
}

.ml-qr__button--text {
	background: transparent;
	color: var(--ml-qr-text-meta);
	padding: 1em 1.2em;
	border: 0;
}

.ml-qr__button--text:hover {
	background: transparent;
	color: var(--ml-qr-accent);
}

/* ---- export panel ----------------------------------------------- */

.ml-qr__column--export {
	display: flex;
	flex-direction: column;
	gap: var(--ml-qr-sp-20);
}

.ml-qr__export {
	display: flex;
	flex-direction: column;
	gap: var(--ml-qr-sp-20);
}

.ml-qr__export-buttons {
	display: grid;
	grid-template-columns: 1fr;
	gap: 10px;
}

.ml-qr__export-buttons .ml-qr__button {
	width: 100%;
}

.ml-qr__format-help {
	list-style: none;
	margin: 8px 0 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 4px;
	font-size: var(--ml-qr-fs-tiny);
	color: var(--ml-qr-text-meta);
	line-height: 1.5;
}

.ml-qr__format-help strong {
	color: var(--ml-qr-paragraph);
	font-weight: 700;
	margin-right: 2px;
}

.ml-qr__size-options {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}

/* ---- reduced motion --------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
	.ml-qr *,
	.ml-qr *::before,
	.ml-qr *::after {
		transition-duration: 0.01ms !important;
		animation-duration: 0.01ms !important;
	}
}

/* ---- fallback for browsers without :has() ----------------------- */

@supports not (selector(:has(*))) {
	.ml-qr__pill.is-checked {
		background: var(--ml-qr-ink);
		color: var(--ml-qr-ink-text);
		border-color: var(--ml-qr-ink);
	}
	.ml-qr__swatch.is-checked {
		box-shadow: 0 0 0 3px var(--ml-qr-midground), 0 0 0 5px var(--ml-qr-accent);
	}
}