/* ==========================================================================
   QR code generator (page-qr-koda.php)
   ========================================================================== */
.qr-page {
	--qr-r: 0.75rem;
	--ok: #15803d; --ok-bg: #ecfdf3;
	--warn: #b45309; --warn-bg: #fffbeb;
	--bad: var(--c-accent-bg); --bad-bg: #fff1f3;
	padding-block: 1.5rem 3.5rem;
}
@media (prefers-color-scheme: dark) {
	:root:not([data-theme="light"]) .qr-page { --ok: #4ade80; --ok-bg: rgba(74, 222, 128, 0.1); --warn: #fbbf24; --warn-bg: rgba(251, 191, 36, 0.1); --bad: #ff6f8c; --bad-bg: rgba(255, 111, 140, 0.1); }
}
:root[data-theme="dark"] .qr-page { --ok: #4ade80; --ok-bg: rgba(74, 222, 128, 0.1); --warn: #fbbf24; --warn-bg: rgba(251, 191, 36, 0.1); --bad: #ff6f8c; --bad-bg: rgba(255, 111, 140, 0.1); }

.qr-head { margin-bottom: 1.25rem; }
.qr-ico { flex: 0 0 auto; }

/* Type tabs: one row that scrolls sideways on phones, wraps into a grid on wide screens. */
.qr-types {
	display: flex;
	gap: 0.5rem;
	margin: 0 calc(var(--gutter) * -1) 1.25rem;
	padding: 0.25rem var(--gutter) 0.5rem;
	overflow-x: auto;
	scroll-snap-type: x proximity;
	scrollbar-width: none;
}
.qr-types::-webkit-scrollbar { display: none; }
.qr-type {
	display: inline-flex;
	flex: 0 0 auto;
	align-items: center;
	gap: 0.5rem;
	min-height: 44px;
	padding: 0 1rem;
	font: 500 0.9375rem/1 var(--font);
	color: var(--c-text);
	white-space: nowrap;
	background: var(--c-bg);
	border: 1px solid var(--c-line);
	border-radius: 999px;
	cursor: pointer;
	scroll-snap-align: start;
	transition: color 0.15s, border-color 0.15s, background-color 0.15s;
}
.qr-type .qr-ico { color: var(--c-muted); transition: color 0.15s; }
.qr-type:hover { border-color: var(--c-accent); }
.qr-type.is-active { font-weight: 600; color: var(--c-accent-ink); background: var(--c-mark); border-color: var(--c-accent); }
.qr-type.is-active .qr-ico { color: var(--c-accent-ink); }
@media (min-width: 992px) {
	.qr-types { flex-wrap: wrap; margin-inline: 0; padding-inline: 0; overflow: visible; }
}

/* Layout: form on the left, sticky preview on the right. */
.qr-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.25rem; align-items: start; }
@media (min-width: 992px) {
	.qr-layout { grid-template-columns: minmax(0, 1fr) 22.5rem; gap: 2rem; }
	.qr-aside { position: sticky; top: calc(var(--header-offset) + 1rem); transition: top 0.25s ease; }
}
.qr-main { display: grid; gap: 1.25rem; min-width: 0; }

.qr-card {
	padding: clamp(1rem, 3vw, 1.5rem);
	background: var(--c-bg);
	border: 1px solid var(--c-line);
	border-radius: var(--qr-r);
}

/* Fields */
.qr-panel { display: grid; gap: 1rem; }
.qr-panel[hidden] { display: none; }
.qr-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; }
@media (min-width: 600px) {
	.qr-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.qr-field--wide { grid-column: 1 / -1; }
}
.qr-field { display: grid; gap: 0.375rem; min-width: 0; }
.qr-field__label { font-size: 0.875rem; font-weight: 600; color: var(--c-heading); }
.qr-field__opt { font-size: 0.75rem; font-weight: 400; color: var(--c-muted); }
.qr-input { min-height: 48px; font-size: 1rem; }
textarea.qr-input { min-height: 0; line-height: 1.5; }
select.qr-input { padding-right: 2.25rem; cursor: pointer; }
.qr-input[aria-invalid="true"] { border-color: var(--bad); box-shadow: inset 0 0 0 1px var(--bad); }
.qr-field__hint { margin: 0; font-size: 0.8125rem; line-height: 1.45; color: var(--c-muted); }
.qr-field__hint:empty { display: none; }
.qr-field__hint.is-error { font-weight: 500; color: var(--bad); }
.qr-field__hint.is-ok { color: var(--ok); }
.qr-field__hint.is-ok::before { content: "✓ "; font-weight: 700; }
.qr-panel__note { margin: 0; font-size: 0.8125rem; line-height: 1.5; color: var(--c-muted); }
.qr-check { align-items: center; }

.qr-pass { position: relative; }
.qr-pass .qr-input { padding-right: 3rem; }
.qr-pass__toggle {
	position: absolute;
	top: 50%;
	right: 0.25rem;
	display: grid;
	place-items: center;
	width: 40px;
	height: 40px;
	color: var(--c-muted);
	background: none;
	border: 0;
	border-radius: 50%;
	transform: translateY(-50%);
	cursor: pointer;
}
.qr-pass__toggle:hover,
.qr-pass__toggle[aria-pressed="true"] { color: var(--c-accent-ink); }

.qr-ref { display: grid; grid-template-columns: 7.5rem minmax(0, 1fr); gap: 0.5rem; }

.qr-set { display: grid; gap: 0.875rem; min-width: 0; margin: 0; padding: 0; border: 0; }
.qr-set + .qr-set { padding-top: 1rem; border-top: 1px solid var(--c-line); }
.qr-set__legend { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.25rem; padding: 0; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--c-muted); }
details.qr-set > summary { list-style: none; cursor: pointer; }
details.qr-set > summary::-webkit-details-marker { display: none; }
details.qr-set > summary .qr-ico { margin-left: auto; transition: transform 0.2s; }
details.qr-set[open] > summary .qr-ico { transform: rotate(180deg); }

.qr-geo-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; }
.qr-geo-tools__or { font-size: 0.8125rem; color: var(--c-muted); }
.qr-btn-sm { min-height: 40px; padding: 0 0.875rem; font-size: 0.875rem; }
.qr-link { padding: 0.25rem 0; font: inherit; font-size: 0.875rem; font-weight: 600; color: var(--c-accent-ink); background: none; border: 0; cursor: pointer; }

/* Style panel */
.qr-style { padding: 0; }
.qr-style__summary {
	display: grid;
	grid-template-columns: auto minmax(0, 1fr) auto;
	grid-template-areas: "sw title chev" "sw sub chev";
	align-items: center;
	column-gap: 0.875rem;
	padding: 1rem clamp(1rem, 3vw, 1.5rem);
	list-style: none;
	cursor: pointer;
}
.qr-style__summary::-webkit-details-marker { display: none; }
.qr-style__summary::before {
	content: "";
	grid-area: sw;
	width: 2.25rem;
	height: 2.25rem;
	background: linear-gradient(135deg, var(--fg, #000) 0 50%, var(--bg, #fff) 50% 100%);
	border: 1px solid var(--c-line);
	border-radius: 0.5rem;
}
.qr-style__title { grid-area: title; font-weight: 600; color: var(--c-heading); }
.qr-style__sub { grid-area: sub; overflow: hidden; font-size: 0.8125rem; color: var(--c-muted); white-space: nowrap; text-overflow: ellipsis; }
.qr-style__summary > .qr-ico { grid-area: chev; color: var(--c-muted); transition: transform 0.2s; }
.qr-style[open] > .qr-style__summary > .qr-ico { transform: rotate(180deg); }
.qr-style__body { display: grid; gap: 1.25rem; padding: 0 clamp(1rem, 3vw, 1.5rem) clamp(1rem, 3vw, 1.5rem); border-top: 1px solid var(--c-line); padding-top: 1.25rem; }
.qr-style.is-locked .qr-style__body { opacity: 0.55; }
.qr-style__row { display: grid; gap: 0.5rem; min-width: 0; margin: 0; padding: 0; border: 0; }
.qr-style__label { padding: 0; font-size: 0.875rem; font-weight: 600; color: var(--c-heading); }

.qr-swatches { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.qr-swatch {
	width: 44px;
	height: 44px;
	padding: 0;
	background: linear-gradient(135deg, var(--fg) 0 50%, var(--bg) 50% 100%);
	border: 1px solid var(--c-line);
	border-radius: 50%;
	cursor: pointer;
	transition: transform 0.15s, box-shadow 0.15s;
}
.qr-swatch:hover { transform: scale(1.06); }
.qr-swatch[aria-pressed="true"] { box-shadow: 0 0 0 2px var(--c-bg), 0 0 0 4px var(--c-accent); }

.qr-colors { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1rem; }
.qr-color { display: inline-flex; align-items: center; gap: 0.625rem; font-size: 0.875rem; cursor: pointer; }
.qr-color input { width: 44px; height: 44px; padding: 0; background: none; border: 1px solid var(--c-line); border-radius: 0.5rem; cursor: pointer; }
.qr-color input::-webkit-color-swatch-wrapper { padding: 3px; }
.qr-color input::-webkit-color-swatch { border: 0; border-radius: 0.3rem; }
.qr-color span { display: grid; line-height: 1.3; }
.qr-color code { font-size: 0.75rem; color: var(--c-muted); }
.qr-color__swap { display: grid; place-items: center; width: 40px; height: 40px; color: var(--c-muted); background: var(--c-surface); border: 0; border-radius: 50%; cursor: pointer; }
.qr-color__swap:hover { color: var(--c-accent-ink); }

.qr-shapes { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.qr-opt { position: relative; cursor: pointer; }
.qr-opt input { position: absolute; opacity: 0; pointer-events: none; }
.qr-opt span {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	min-height: 44px;
	padding: 0 0.875rem 0 0.625rem;
	font-size: 0.875rem;
	color: var(--c-text);
	background: var(--c-bg);
	border: 1px solid var(--c-line);
	border-radius: 0.625rem;
	transition: border-color 0.15s, background-color 0.15s;
}
.qr-opt svg { color: var(--c-heading); }
.qr-opt:hover span { border-color: var(--c-accent); }
.qr-opt input:checked + span { font-weight: 600; color: var(--c-accent-ink); background: var(--c-mark); border-color: var(--c-accent); }
.qr-opt input:checked + span svg { color: var(--c-accent-ink); }
.qr-opt input:focus-visible + span { outline: 2px solid var(--c-accent); outline-offset: 2px; }
.qr-opt input:disabled + span,
.qr-swatch:disabled,
.qr-color input:disabled { cursor: not-allowed; }

.qr-logo { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; }
.qr-logo__pick { cursor: pointer; }
.qr-logo__pick:focus-within { outline: 2px solid var(--c-accent); outline-offset: 2px; }

.qr-adv > summary { display: inline-flex; align-items: center; gap: 0.375rem; font-size: 0.875rem; font-weight: 600; color: var(--c-heading); list-style: none; cursor: pointer; }
.qr-adv > summary::-webkit-details-marker { display: none; }
.qr-adv[open] > summary .qr-ico { transform: rotate(180deg); }
.qr-adv > .qr-grid { margin-top: 0.875rem; }
.qr-adv > .qr-field__hint { margin-top: 0.75rem; }

/* Preview */
.qr-preview { display: grid; gap: 1rem; }
.qr-preview__stage {
	position: relative;
	display: grid;
	place-items: center;
	padding: 1rem;
	/* checkerboard shows through a transparent background */
	background: repeating-conic-gradient(var(--c-surface) 0 25%, var(--c-bg) 0 50%) 0 0 / 16px 16px;
	border-radius: calc(var(--qr-r) - 0.25rem);
}
.qr-preview__frame { width: 100%; max-width: 18rem; aspect-ratio: 1; }
.qr-preview__frame svg { display: block; width: 100%; height: auto; border-radius: 0.25rem; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 6px 20px rgba(0, 0, 0, 0.08); }
.qr-preview__frame:not(.is-empty) { aspect-ratio: auto; animation: qr-in 0.18s ease-out; }
.qr-preview__frame.is-empty {
	background:
		linear-gradient(var(--c-bg), var(--c-bg)) padding-box,
		repeating-linear-gradient(45deg, var(--c-line) 0 6px, transparent 6px 12px) border-box;
	border: 2px dashed var(--c-line);
	border-radius: 0.5rem;
}
.qr-preview__frame.is-empty::before {
	content: "";
	position: absolute;
	inset: 0;
	margin: auto;
	width: 4rem;
	height: 4rem;
	background: currentColor;
	color: var(--c-line);
	-webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 3h7v7H3zM14 3h7v7h-7zM3 14h7v7H3z' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cpath d='M14 14h3v3h-3zM18 18h3v3h-3zM14 19h2v2h-2zM19 14h2v2h-2z'/%3E%3C/svg%3E") center / contain no-repeat;
	mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 3h7v7H3zM14 3h7v7h-7zM3 14h7v7H3z' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cpath d='M14 14h3v3h-3zM18 18h3v3h-3zM14 19h2v2h-2zM19 14h2v2h-2z'/%3E%3C/svg%3E") center / contain no-repeat;
	transform: translateY(-1.25rem);
}
.qr-preview__empty {
	position: absolute;
	inset: auto 1.5rem 22%;
	margin: 0;
	font-size: 0.875rem;
	line-height: 1.45;
	text-align: center;
	color: var(--c-muted);
}
.qr-preview__empty[hidden] { display: none; }
@keyframes qr-in { from { opacity: 0.4; transform: scale(0.985); } to { opacity: 1; transform: none; } }

.qr-meter { display: grid; gap: 0.5rem; }
.qr-meter[hidden] { display: none; }
.qr-meter__badge {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	justify-self: start;
	padding: 0.375rem 0.75rem;
	font-size: 0.8125rem;
	font-weight: 600;
	color: var(--v);
	background: var(--v-bg);
	border-radius: 999px;
}
.qr-meter__badge::before { content: ""; width: 0.5rem; height: 0.5rem; background: currentColor; border-radius: 50%; }
.qr-meter__badge.is-ok { --v: var(--ok); --v-bg: var(--ok-bg); }
.qr-meter__badge.is-warn { --v: var(--warn); --v-bg: var(--warn-bg); }
.qr-meter__badge.is-bad { --v: var(--bad); --v-bg: var(--bad-bg); }
.qr-meter__list { display: grid; gap: 0.375rem; margin: 0; padding: 0; list-style: none; font-size: 0.8125rem; line-height: 1.45; }
.qr-meter__list li { position: relative; padding-left: 1.25rem; color: var(--c-text); }
.qr-meter__list li::before { position: absolute; left: 0; top: 0; font-weight: 700; }
.qr-meter__list .is-ok::before { content: "✓"; color: var(--ok); }
.qr-meter__list .is-warn::before { content: "!"; left: 0.25rem; color: var(--warn); }
.qr-meter__list .is-bad::before { content: "×"; color: var(--bad); }
.qr-meter__list .is-info { color: var(--c-muted); }
.qr-meter__list .is-info::before { content: "↔"; font-weight: 400; }

.qr-actions { display: grid; gap: 0.5rem; }
.qr-dl { display: flex; }
.qr-dl__main { flex: 1 1 auto; min-height: 48px; border-radius: var(--radius) 0 0 var(--radius); }
.qr-dl__size {
	flex: 0 0 auto;
	min-height: 48px;
	padding: 0 0.5rem;
	font-size: 0.8125rem;
	font-weight: 600;
	color: #fff;
	background: #b80026;
	border: 0;
	border-left: 1px solid rgba(255, 255, 255, 0.35);
	border-radius: 0 var(--radius) var(--radius) 0;
	cursor: pointer;
}
.qr-dl__size option { color: var(--c-text); background: var(--c-bg); }
.sa-btn:disabled,
.qr-act:disabled { cursor: not-allowed; opacity: 0.5; }
.qr-actions__row { display: grid; grid-template-columns: repeat(auto-fit, minmax(5.5rem, 1fr)); gap: 0.5rem; }
.qr-act {
	display: inline-flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 0.25rem;
	min-height: 56px;
	padding: 0.5rem;
	font: 500 0.8125rem/1.2 var(--font);
	color: var(--c-heading);
	background: var(--c-surface);
	border: 1px solid transparent;
	border-radius: 0.625rem;
	cursor: pointer;
	transition: border-color 0.15s, color 0.15s;
}
.qr-act[hidden] { display: none; }
.qr-act:not(:disabled):hover { color: var(--c-accent-ink); border-color: var(--c-accent); }

.qr-content { font-size: 0.8125rem; }
.qr-content[hidden] { display: none; }
.qr-content > summary { font-weight: 600; color: var(--c-heading); cursor: pointer; }
.qr-content__raw {
	max-height: 10rem;
	margin: 0.5rem 0;
	padding: 0.625rem 0.75rem;
	overflow: auto;
	font: 0.75rem/1.5 ui-monospace, SFMono-Regular, Consolas, monospace;
	white-space: pre-wrap;
	word-break: break-all;
	background: var(--c-surface);
	border-radius: 0.5rem;
}
.qr-content__meta { margin: 0; color: var(--c-muted); }
.qr-privacy { display: flex; gap: 0.5rem; margin: 0; padding-top: 0.875rem; font-size: 0.75rem; line-height: 1.5; color: var(--c-muted); border-top: 1px solid var(--c-line); }
.qr-privacy .qr-ico { margin-top: 0.125rem; color: var(--ok); }

/* Phones: a small bar with the code and the download button while the preview is off screen. */
.qr-dock {
	position: fixed;
	left: 0.75rem;
	right: 0.75rem;
	bottom: max(0.75rem, env(safe-area-inset-bottom));
	z-index: 90;
	display: flex;
	align-items: center;
	gap: 0.75rem;
	padding: 0.5rem 0.5rem 0.5rem 0.5rem;
	background: var(--c-bg);
	border: 1px solid var(--c-line);
	border-radius: 1rem;
	box-shadow: var(--shadow);
	animation: qr-up 0.2s ease-out;
}
.qr-dock[hidden] { display: none; }
.qr-dock__thumb { flex: 0 0 auto; width: 3rem; height: 3rem; padding: 0; overflow: hidden; background: #fff; border: 1px solid var(--c-line); border-radius: 0.5rem; cursor: pointer; }
.qr-dock__thumb svg { display: block; width: 100%; height: 100%; }
.qr-dock__text { flex: 1 1 auto; font-size: 0.875rem; font-weight: 600; color: var(--c-heading); }
.qr-dock__dl { flex: 0 0 auto; }
body.qr-has-dock { padding-bottom: 5.5rem; }
@keyframes qr-up { from { opacity: 0; transform: translateY(0.75rem); } to { opacity: 1; transform: none; } }

.qr-toast {
	position: fixed;
	left: 50%;
	bottom: max(1rem, env(safe-area-inset-bottom));
	z-index: 95;
	max-width: calc(100% - 2rem);
	padding: 0.625rem 1rem;
	font-size: 0.9375rem;
	color: #fff;
	background: #111;
	border-radius: 999px;
	box-shadow: var(--shadow);
	opacity: 0;
	pointer-events: none;
	transform: translate(-50%, 0.75rem);
	transition: opacity 0.2s, transform 0.2s;
}
body.qr-has-dock .qr-toast { bottom: calc(max(0.75rem, env(safe-area-inset-bottom)) + 4.75rem); }
.qr-toast.is-on { opacity: 1; transform: translate(-50%, 0); }
:root[data-theme="dark"] .qr-toast { color: #111; background: #f4f4f5; }
@media (prefers-color-scheme: dark) {
	:root:not([data-theme="light"]) .qr-toast { color: #111; background: #f4f4f5; }
}

/* Guide and links */
.qr-article { margin-top: 3rem; }
.entry-content .qr-kinds { display: grid; grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); gap: 0.75rem; margin: 0 0 1.5em; padding: 0; list-style: none; }
.entry-content .qr-kinds__item { display: flex; align-items: flex-start; gap: 0.875rem; margin: 0; padding: 1rem 1.125rem; background: var(--c-surface); border-radius: 0.625rem; }
.qr-kinds__item > .qr-ico { margin-top: 0.125rem; color: var(--c-accent-ink); }
.entry-content .qr-kinds p { margin: 0; font-size: 0.9375rem; line-height: 1.5; }
.entry-content .qr-kinds .qr-kinds__title { margin-bottom: 0.25rem; font-family: var(--font); font-size: 1rem; font-weight: 700; color: var(--c-heading); }
.entry-content .qr-kinds__title a { color: inherit; text-decoration: underline; text-decoration-color: var(--c-accent); text-underline-offset: 3px; }
.entry-content .qr-kinds .qr-kinds__use { margin-top: 0.375rem; font-size: 0.875rem; color: var(--c-muted); }
.qr-kinds__use span { font-weight: 600; color: var(--c-text); }
.qr-more { margin-top: 2.5rem; }
.qr-more__list { display: grid; grid-auto-flow: row dense; grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr)); gap: 0.5rem; margin: 0; padding: 0; list-style: none; }
.qr-more__link {
	display: flex;
	align-items: center;
	gap: 0.625rem;
	min-height: 52px;
	padding: 0.625rem 1rem;
	font-weight: 600;
	color: var(--c-heading);
	background: var(--c-surface);
	border: 1px solid transparent;
	border-radius: 0.625rem;
	transition: border-color 0.15s, color 0.15s;
}
.qr-more__link .qr-ico { color: var(--c-accent-ink); }
.qr-more__link:hover { color: var(--c-accent-ink); border-color: var(--c-accent); }

.qr-print { display: none; }

@media print {
	body.qr-printing { padding: 0 !important; }
	body.qr-printing * { visibility: hidden; }
	body.qr-printing .qr-print,
	body.qr-printing .qr-print * { visibility: visible; }
	body.qr-printing .qr-print { position: absolute; top: 0; left: 0; display: block; width: 100%; }
	.qr-print__card { width: 9cm; margin: 1cm auto; padding: 0.8cm; font-family: Arial, Helvetica, sans-serif; color: #000; text-align: center; }
	.qr-print__card.has-card { border: 1px solid #999; border-radius: 0.4cm; }
	.qr-print__title { margin: 0 0 0.4cm; font-size: 20pt; font-weight: 700; }
	.qr-print__code svg { display: block; width: 6cm; height: auto; margin: 0 auto; }
	.qr-print__card.is-upn .qr-print__code svg { width: 3.6cm; }
	.qr-print__rows { margin: 0.5cm 0 0; text-align: left; }
	.qr-print__rows div { display: flex; gap: 0.3cm; padding: 0.12cm 0; border-bottom: 1px solid #ddd; font-size: 11pt; }
	.qr-print__rows dt { flex: 0 0 2.6cm; color: #555; }
	.qr-print__rows dd { margin: 0; font-weight: 700; word-break: break-all; }
	.qr-print__foot { margin: 0.4cm 0 0; font-size: 9pt; color: #555; }
}