/* OpenPress QR Code Generator interface (task 041, foundation). Loaded on the QR Code Generator Free Tool page only, after
   free-tool-single.css, inside the .op-free-tool-interface frame. Uses the theme's global tokens and the shared .op-btn, so
   light and dark follow the theme switch. Presentation only: no QR code is generated here. Reduced motion: main.css zeroes
   transitions globally. */

.op-qr { --op-qr-error: #B42318; }
@media (prefers-color-scheme: dark) {
	.op-qr { --op-qr-error: #F97066; }
	:root[data-theme="light"] .op-qr { --op-qr-error: #B42318; }
}
:root[data-theme="dark"] .op-qr { --op-qr-error: #F97066; }

.op-qr { display: grid; gap: 1.5rem; min-width: 0; }

/* Heading ----------------------------------------------------------------- */
.op-qr__intro { display: grid; gap: 0.25rem; min-width: 0; }
.op-qr__heading { margin: 0; color: var(--op-text); font-family: var(--op-font-display); font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.25; overflow-wrap: anywhere; }
.op-qr__lede { margin: 0; color: var(--op-text-muted); font-size: 0.875rem; line-height: 1.4; }

/* Layout: stacked on mobile, two columns from 1024px ------------------------ */
.op-qr__layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.5rem; min-width: 0; }
.op-qr__panel { display: grid; align-content: start; gap: 0.75rem; min-width: 0; }

/* Input -------------------------------------------------------------------- */
.op-qr__label { color: var(--op-text); font-size: 1rem; font-weight: 600; line-height: 1.3; }
.op-qr__input {
	display: block;
	width: 100%;
	min-width: 0;
	max-width: 100%;
	min-height: 9rem;
	height: 11rem;
	margin: 0;
	padding: 1rem;
	background: var(--op-bg);
	border: 1px solid var(--op-border-strong);
	border-radius: 0.75rem;
	color: var(--op-text);
	font-family: inherit;
	font-size: 1rem;
	line-height: 1.6;
	resize: vertical;
	transition: border-color var(--op-transition), background-color var(--op-transition);
}
.op-qr__input::placeholder { color: var(--op-text-muted); opacity: 1; }
.op-qr__input:hover { border-color: color-mix(in srgb, var(--op-btn-bg) 45%, var(--op-border-strong)); }
.op-qr__input:focus { border-color: var(--op-focus); background: var(--op-bg-elevated); }
.op-qr__input:focus-visible { outline: 3px solid var(--op-focus); outline-offset: 2px; }
.op-qr__help { margin: 0; color: var(--op-text-muted); font-size: 0.8125rem; line-height: 1.4; }

/* Buttons: shared .op-btn system; only sizing and the inactive look are added here. */
.op-qr__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; min-width: 0; }
.op-qr__generate,
.op-qr__clear { min-height: 2.75rem; }
.op-qr__generate:focus-visible,
.op-qr__clear:focus-visible { outline: 3px solid var(--op-focus); outline-offset: 2px; }
.op-qr__generate[aria-disabled="true"],
.op-qr__clear[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; pointer-events: auto; }
.op-qr__generate[aria-disabled="true"]:active,
.op-qr__clear[aria-disabled="true"]:active { transform: none; box-shadow: none; }

.op-qr__trust { display: flex; align-items: flex-start; gap: 0.5rem; margin: 0; color: var(--op-text-muted); font-size: 0.8125rem; line-height: 1.4; }
.op-qr__trust svg { flex: none; margin-top: 1px; color: var(--op-link); }
.op-qr__trust span { min-width: 0; overflow-wrap: anywhere; }

/* Output ------------------------------------------------------------------- */
.op-qr__panel--output {
	padding: 1rem;
	background: var(--op-bg-elevated);
	border: 1px solid var(--op-border);
	border-radius: 0.75rem;
	box-shadow: var(--op-shadow-sm);
}
.op-qr__output-title { margin: 0; color: var(--op-text-muted); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }

/* Empty state: a modest, centred area (not a giant rectangle). */
.op-qr__empty { display: grid; justify-items: center; align-content: center; gap: 0.25rem; min-height: 12rem; padding: 1.5rem 1rem; text-align: center; border: 1px dashed var(--op-border-strong); border-radius: 0.75rem; }
.op-qr__empty-icon { color: var(--op-text-muted); margin-bottom: 0.5rem; }
.op-qr__empty-title { margin: 0; color: var(--op-text); font-size: 1rem; font-weight: 600; line-height: 1.3; overflow-wrap: anywhere; }
.op-qr__empty-text { margin: 0; color: var(--op-text-muted); font-size: 0.875rem; line-height: 1.4; overflow-wrap: anywhere; }

.op-qr__loading { margin: 0; color: var(--op-text-muted); font-size: 0.875rem; text-align: center; }

/* Render area: plain white with a generous quiet zone, in both themes, so a future code stays scannable. Nothing over or behind it. */
.op-qr__render { display: grid; place-items: center; width: 100%; max-width: 20rem; aspect-ratio: 1 / 1; margin-inline: auto; padding: 1.5rem; background: #fff; border: 1px solid var(--op-border); border-radius: 0.75rem; box-shadow: none; }
.op-qr__render > svg { display: block; width: 100%; max-width: 100%; height: auto; }
.op-qr__result-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; }

.op-qr__stale { margin: 0; padding: 0.625rem 0.875rem; color: var(--op-text); background: var(--op-bg); border: 1px solid var(--op-border-strong); border-left-width: 4px; border-radius: 0.75rem; font-size: 0.875rem; font-weight: 600; line-height: 1.4; }
/* A stale code stays visible but clearly out of date (dimmed, plus the note above): it cannot be downloaded. */
.op-qr__panel--output[data-state="stale"] .op-qr__render { opacity: 0.4; }
.op-qr__download { min-height: 2.75rem; }
.op-qr__download:focus-visible { outline: 3px solid var(--op-focus); outline-offset: 2px; }
.op-qr__download[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; pointer-events: auto; }
.op-qr__download[aria-disabled="true"]:active { transform: none; box-shadow: none; }

.op-qr__error { margin: 0; padding: 0.75rem 1rem; color: var(--op-qr-error); background: color-mix(in srgb, var(--op-qr-error) 8%, var(--op-bg-elevated)); border: 1px solid color-mix(in srgb, var(--op-qr-error) 40%, var(--op-border)); border-radius: 0.75rem; font-size: 0.875rem; font-weight: 600; line-height: 1.4; }

/* The [hidden] attribute must win over the display rules above. */
.op-qr__loading[hidden],
.op-qr__render[hidden],
.op-qr__result-actions[hidden],
.op-qr__error[hidden],
.op-qr__empty[hidden],
.op-qr__stale[hidden] { display: none; }

@media (min-width: 768px) {
	.op-qr__input { min-height: 11rem; height: 13rem; }
	.op-qr__panel--output { padding: 1.25rem; }
}
@media (min-width: 1024px) {
	.op-qr__layout { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; align-items: start; }
}
@media (max-width: 480px) {
	.op-qr__actions > .op-btn,
	.op-qr__download { flex: 1 1 100%; }
	.op-qr__input { padding: 0.75rem; }
	.op-qr__render { padding: 1rem; }
}