/* LadyQR editor. One centered card: text field, settings, QR code, download. */

:root {
	--bg: #f5f4f3;
	--surface: #ffffff;
	--ink: #1d1a1b;
	--muted: #6d6869;
	--line: #d3cfce;
	--border: #847e7f;
	--accent: #d9261c;
	--accent-ink: #ffffff;
	--accent-deep: #b81d14;
	--warn: #a35200;
	--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	color-scheme: light;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #141213;
		--surface: #1d1a1b;
		--ink: #f1eeed;
		--muted: #a29b9c;
		--line: #4a4445;
		--border: #7e7879;
		--accent: #ef4a40;
		--accent-ink: #141213;
		--accent-deep: #d93a30;
		--warn: #f0b35a;
		color-scheme: dark;
	}
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	padding: 72px max(16px, env(safe-area-inset-right, 0px)) 20px max(16px, env(safe-area-inset-left, 0px));
	background: var(--bg);
	color: var(--ink);
	font-family: var(--font);
	font-size: 16px;
	line-height: 1.5;
}

main {
	flex: 1;
	width: 100%;
	max-width: 560px;
	margin: 0 auto;
	display: flex;
	flex-direction: column;
	justify-content: center;
}

.card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 24px;
	box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
}

.card-body {
	display: flex;
	flex-direction: column;
	gap: 22px;
	padding: 24px;
}

@media (max-width: 480px) {
	.card {
		border-radius: 20px;
	}

	.card-body {
		padding: 16px;
	}

	.field {
		padding: 16px;
		font-size: 1.2rem;
	}
}

button:focus-visible,
summary:focus-visible,
input:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
}

/* Text field */

.field {
	width: 100%;
	padding: 18px 20px;
	font: inherit;
	font-size: 1.6rem;
	font-weight: 500;
	color: var(--ink);
	background: var(--bg);
	border: 2px solid var(--border);
	border-radius: 14px;
}

.field::placeholder {
	color: var(--muted);
	font-weight: 400;
}

.field:focus-visible {
	outline: none;
	border-color: var(--accent);
}

/* Settings */

/* The settings are the card's header. */

.settings {
	overflow: hidden;
	border-bottom: 1px solid var(--line);
	border-radius: 23px 23px 0 0;
}

.settings summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 14px 24px;
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--muted);
	background: var(--bg);
	cursor: pointer;
	list-style: none;
}

.settings[open] summary {
	border-bottom: 1px solid var(--line);
}

.settings summary::-webkit-details-marker {
	display: none;
}

.settings summary::after {
	content: "";
	width: 8px;
	height: 8px;
	margin-right: 4px;
	border-right: 2px solid currentColor;
	border-bottom: 2px solid currentColor;
	transform: rotate(45deg);
	transition: transform 0.15s;
}

.settings[open] summary::after {
	transform: rotate(-135deg);
}

.settings-body {
	display: flex;
	flex-direction: column;
	gap: 18px;
	padding: 20px 24px 22px;
}

@media (max-width: 480px) {
	.settings summary {
		padding: 14px 16px;
	}

	.settings-body {
		padding: 16px 16px 18px;
	}
}

.label {
	display: block;
	margin-bottom: 8px;
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--muted);
}

.segmented {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	overflow: hidden;
	border: 1px solid var(--border);
	border-radius: 10px;
}

.segmented button {
	display: flex;
	flex-direction: column;
	align-items: center;
	padding: 8px 4px;
	font: inherit;
	font-weight: 600;
	line-height: 1.25;
	color: var(--ink);
	background: var(--bg);
	border: 0;
	border-right: 1px solid var(--border);
	cursor: pointer;
}

.segmented button:last-child {
	border-right: 0;
}

.segmented small {
	font-size: 0.72rem;
	font-weight: 400;
	color: var(--muted);
}

.segmented button[aria-pressed="true"] {
	color: var(--accent-ink);
	background: var(--accent);
}

.segmented button[aria-pressed="true"] small {
	color: inherit;
}

.range {
	display: flex;
	align-items: center;
	gap: 12px;
}

.range input {
	flex: 1;
	min-width: 0;
	accent-color: var(--accent);
}

.range output {
	min-width: 2ch;
	font-family: var(--mono);
	font-size: 0.9rem;
	text-align: right;
}

.colors {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
	gap: 16px;
}

.colors input {
	width: 56px;
	height: 38px;
	padding: 2px;
	background: var(--bg);
	border: 1px solid var(--border);
	border-radius: 8px;
}

/* QR code */

.qr {
	align-self: center;
	width: 100%;
	max-width: 360px;
	aspect-ratio: 1;
	overflow: hidden;
	border: 1px solid var(--border);
}

.qr svg {
	display: block;
	width: 100%;
	height: 100%;
}

/* Empty state: a faint drawing of a QR code with a message on top. */

.qr-empty {
	position: relative;
	height: 100%;
	display: grid;
	place-items: center;
	background: var(--bg);
}

.qr-skeleton {
	position: absolute;
	inset: 0;
	color: var(--muted);
	opacity: 0.16;
}

.qr-message {
	position: relative;
	max-width: 80%;
	margin: 0;
	padding: 10px 16px;
	font-size: 0.95rem;
	text-align: center;
	color: var(--muted);
	background: var(--bg);
}

.reset {
	align-self: flex-start;
	padding: 8px 14px;
	font: inherit;
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--ink);
	background: transparent;
	border: 1px solid var(--border);
	border-radius: 10px;
	cursor: pointer;
}

.reset:hover:not(:disabled) {
	border-color: var(--accent);
	color: var(--accent);
}

.reset:disabled {
	color: var(--muted);
	opacity: 0.6;
	cursor: default;
}

.warning {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	margin: -8px 0 0;
	font-size: 0.85rem;
	font-weight: 500;
	text-align: center;
	color: var(--warn);
}

.warning[hidden] {
	display: none;
}

.warning svg {
	flex: none;
}

/* Download: a big button with a format menu attached */

.download {
	position: relative;
	display: flex;
	width: 100%;
}

.download-main {
	flex: 1;
	padding: 18px 20px;
	font: inherit;
	font-size: 1.25rem;
	font-weight: 700;
	color: var(--accent-ink);
	background: var(--accent);
	border: 0;
	border-radius: 14px 0 0 14px;
	cursor: pointer;
}

.download-main small {
	margin-left: 6px;
	font-weight: 500;
}

.download-more {
	display: grid;
	place-items: center;
	width: 64px;
	color: var(--accent-ink);
	background: var(--accent);
	border: 0;
	border-left: 1px solid var(--accent-deep);
	border-radius: 0 14px 14px 0;
	cursor: pointer;
}

.download-more svg {
	transition: transform 0.15s;
}

.download-more[aria-expanded="true"] svg {
	transform: rotate(180deg);
}

.download-main:hover:not(:disabled),
.download-more:hover:not(:disabled) {
	background: var(--accent-deep);
}

.download-main:disabled,
.download-more:disabled {
	opacity: 0.4;
	cursor: not-allowed;
}

.download-menu {
	position: absolute;
	top: calc(100% + 6px);
	left: 0;
	right: 0;
	z-index: 5;
	overflow: hidden;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 12px;
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

.download-menu[hidden] {
	display: none;
}

.download-menu button {
	display: flex;
	justify-content: space-between;
	gap: 12px;
	width: 100%;
	padding: 14px 20px;
	font: inherit;
	font-size: 1.05rem;
	text-align: left;
	color: var(--ink);
	background: transparent;
	border: 0;
	cursor: pointer;
}

.download-menu button + button {
	border-top: 1px solid var(--line);
}

.download-menu button:hover {
	background: var(--bg);
}

.download-menu span {
	font-size: 0.9rem;
	color: var(--muted);
}

/* Help button and dialog */

.help {
	position: absolute;
	top: max(16px, env(safe-area-inset-top, 0px));
	right: max(16px, env(safe-area-inset-right, 0px));
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0;
	height: 40px;
	min-width: 40px;
	padding: 0 9px;
	overflow: hidden;
	font: inherit;
	font-size: 0.95rem;
	font-weight: 600;
	color: var(--muted);
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 99px;
	cursor: pointer;
	transition: gap 0.18s, padding 0.18s, color 0.18s, border-color 0.18s;
}

.help svg {
	flex: none;
}

.help span {
	max-width: 0;
	opacity: 0;
	white-space: nowrap;
	transition: max-width 0.2s, opacity 0.2s;
}

.help:hover,
.help:focus-visible {
	gap: 8px;
	padding: 0 16px 0 11px;
	color: var(--accent);
	border-color: var(--accent);
}

.help:hover span,
.help:focus-visible span {
	max-width: 6em;
	opacity: 1;
}

dialog {
	width: min(520px, calc(100vw - 32px));
	max-height: calc(100vh - 48px);
	padding: 0;
	color: var(--ink);
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 20px;
}

dialog::backdrop {
	background: rgba(20, 18, 19, 0.55);
}

.dialog-body {
	display: flex;
	flex-direction: column;
	gap: 14px;
	max-height: calc(100vh - 50px);
	padding: 24px;
	overflow: auto;
}

.dialog-head {
	display: flex;
	align-items: center;
	gap: 12px;
}

.dialog-head h2 {
	flex: 1;
	margin: 0;
	font-size: 1.3rem;
	letter-spacing: -0.01em;
}

.dialog-close {
	width: 36px;
	height: 36px;
	font: inherit;
	font-size: 1.4rem;
	line-height: 1;
	color: var(--muted);
	background: transparent;
	border: 1px solid var(--border);
	border-radius: 99px;
	cursor: pointer;
}

.dialog-body h3 {
	margin: 6px 0 0;
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--muted);
}

.dialog-body p,
.dialog-body li {
	margin: 0;
	font-size: 0.97rem;
}

.dialog-body ol {
	display: flex;
	flex-direction: column;
	gap: 6px;
	margin: 0;
	padding-left: 20px;
}

.dialog-body small {
	font-family: var(--mono);
	font-size: 0.78rem;
	color: var(--muted);
}

/* Footer */

footer {
	display: flex;
	justify-content: center;
	margin-top: 28px;
}

footer a {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-size: 0.85rem;
	color: var(--muted);
	text-decoration: none;
}

footer a:hover {
	color: var(--ink);
}

footer b {
	font-weight: 600;
	color: var(--ink);
}

@media (prefers-reduced-motion: reduce) {
	* {
		transition: none !important;
	}
}