/* Shared shell only (header, menus, footer). Depends on assets/system/tokens.css. */
.qr-shell-header, .qr-shell-footer {
	font-family: var(--q-font);
	color: var(--q-text);
	-webkit-font-smoothing: antialiased;
}
.qr-shell-header *, .qr-shell-footer * { box-sizing: border-box; }

/* ---------- Header ---------- */
.qr-shell-header {
	position: sticky;
	top: 0;
	z-index: 100;
	border-bottom: 1px solid color-mix(in srgb, var(--q-line) 70%, transparent);
	background: var(--q-glass);
	-webkit-backdrop-filter: saturate(1.8) blur(16px);
	backdrop-filter: saturate(1.8) blur(16px);
	transition: box-shadow var(--q-dur-3) var(--q-ease), border-color var(--q-dur-3) var(--q-ease);
}
.qr-shell-header.is-scrolled { border-bottom-color: var(--q-line); box-shadow: 0 10px 30px -22px rgba(10, 31, 82, 0.45); }
.admin-bar .qr-shell-header { top: 32px; }
.qr-shell-header__inner {
	display: flex;
	align-items: center;
	gap: var(--q-6);
	width: min(100% - 2 * var(--q-gutter), var(--q-app-max));
	min-height: var(--q-header-h);
	margin: 0 auto;
}
body.qr-public .qr-shell-header__inner, .qr-shell-header:not(.qr-shell-header--authenticated) .qr-shell-header__inner { width: min(100% - 2 * var(--q-gutter), var(--q-public-max)); }

/* Brand: the approved mark, pre-cropped to its drawn area (qr-mark*.webp), and a wordmark echoing the logo. */
.qr-shell-brand { display: inline-flex; flex: none; align-items: center; gap: 0.55rem; color: var(--q-text); text-decoration: none; white-space: nowrap; }
.qr-shell-brand__mark { position: relative; display: block; flex: none; width: 2.3rem; aspect-ratio: 320 / 203; transition: transform var(--q-dur-3) var(--q-ease-out); }
.qr-shell-brand__mark img { display: block; width: 100%; height: auto; }
.qr-shell-brand--pro .qr-shell-brand__mark { aspect-ratio: 400 / 245; }
.qr-shell-brand:hover .qr-shell-brand__mark { transform: rotate(-4deg) scale(1.06); }
.qr-shell-brand__word { font-size: 1.1875rem; font-weight: 800; line-height: 1; letter-spacing: -0.045em; }
.qr-shell-brand__word span { background: linear-gradient(100deg, #0b52e0, #1f7aff 55%, #0fb4f0); -webkit-background-clip: text; background-clip: text; color: var(--q-accent); -webkit-text-fill-color: transparent; }
.qr-shell-brand--pro .qr-shell-brand__word span { background-image: linear-gradient(100deg, #4b1cf0, #8a2cff 70%); }
.qr-shell-brand__word b { margin-left: 0.2rem; background: linear-gradient(100deg, #a02cff, #ef6bff); -webkit-background-clip: text; background-clip: text; font-weight: 850; letter-spacing: -0.02em; -webkit-text-fill-color: transparent; }
html[data-theme="dark"] .qr-shell-brand__word span { background-image: linear-gradient(100deg, #5a9bff, #3fd0ff); }
html[data-theme="dark"] .qr-shell-brand--pro .qr-shell-brand__word span { background-image: linear-gradient(100deg, #8b6bff, #c07bff); }
.qr-shell-brand:hover { color: var(--q-text); }
/* Dark appearance uses the mark variant with a light Q (qr-mark-img--dark in components.css), so no glow is needed. */
@media (prefers-reduced-motion: reduce) { .qr-shell-brand:hover .qr-shell-brand__mark { transform: none; } }

.qr-shell-nav { display: flex; align-self: stretch; align-items: stretch; gap: var(--q-1); }
.qr-shell-header:not(.qr-shell-header--authenticated) .qr-shell-nav { margin-left: auto; }
.qr-shell-nav a {
	position: relative;
	display: inline-flex;
	align-items: center;
	padding: 0 var(--q-3);
	color: var(--q-text-2);
	font-size: var(--q-fs-md);
	font-weight: 550;
	text-decoration: none;
	white-space: nowrap;
	transition: color var(--q-dur-1) var(--q-ease);
}
.qr-shell-nav a::after {
	content: "";
	position: absolute;
	right: var(--q-3); bottom: -1px; left: var(--q-3);
	height: 2px;
	border-radius: 2px 2px 0 0;
	background: var(--q-grad-vivid);
	transform: scaleX(0);
	transition: transform var(--q-dur-3) var(--q-ease-out);
}
.qr-shell-nav a:hover { color: var(--q-text); }
.qr-shell-nav a:hover::after { transform: scaleX(0.4); }
.qr-shell-nav a[aria-current="page"] { color: var(--q-text); font-weight: 650; }
.qr-shell-nav a[aria-current="page"]::after { transform: scaleX(1); }

.qr-shell-header__actions { display: flex; align-items: center; gap: var(--q-2); margin-left: auto; }
.qr-shell-header:not(.qr-shell-header--authenticated) .qr-shell-header__actions { margin-left: 0; }

.qr-shell-signin, .qr-shell-cta, .qr-shell-upgrade {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 2.125rem;
	padding: 0 var(--q-3);
	border-radius: var(--q-r);
	font-size: var(--q-fs-md);
	font-weight: 600;
	text-decoration: none;
	white-space: nowrap;
	transition: background-color var(--q-dur-1) var(--q-ease), color var(--q-dur-1) var(--q-ease);
}
.qr-shell-signin { color: var(--q-text-2); }
.qr-shell-signin:hover { background: var(--q-surface-3); color: var(--q-text); }
.qr-shell-cta { position: relative; overflow: hidden; background: var(--q-grad) #1466f0; background-size: 170% 100%; color: #fff; box-shadow: 0 6px 16px -8px rgba(20, 102, 240, 0.85); transition: background-position 0.6s var(--q-ease-out), translate var(--q-dur-3) var(--q-ease-out), box-shadow var(--q-dur-3) var(--q-ease-out); }
.qr-shell-cta:hover { background-position: 100% 0; background-color: #0b3fc4; color: #fff; translate: 0 -1px; box-shadow: 0 10px 22px -10px rgba(20, 102, 240, 0.95); }
/* Upgrade: the one persistent path to PRO, in the PRO mark's colours with a slow shimmer. */
.qr-shell-upgrade { position: relative; overflow: hidden; gap: 0.35rem; min-height: 2rem; padding: 0 0.85rem; border-radius: var(--q-r-pill); background: var(--q-grad-pro) #7a22e8; background-size: 170% 100%; color: #fff; font-size: var(--q-fs-sm); font-weight: 700; box-shadow: 0 6px 16px -8px rgba(122, 34, 232, 0.9); transition: background-position 0.6s var(--q-ease-out), translate var(--q-dur-3) var(--q-ease-out), box-shadow var(--q-dur-3) var(--q-ease-out); }
.qr-shell-upgrade::after { content: ""; position: absolute; inset: 0 auto 0 0; width: 40%; background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.45), transparent); transform: translateX(-160%) skewX(-18deg); animation: qr-shell-shimmer 5.5s var(--q-ease-out) 1.5s infinite; pointer-events: none; }
.qr-shell-upgrade .qr-next-icon { width: 0.9rem; height: 0.9rem; }
.qr-shell-upgrade:hover { background-position: 100% 0; background-color: #3b12d9; color: #fff; translate: 0 -1px; box-shadow: 0 10px 22px -10px rgba(122, 34, 232, 0.95); }
@keyframes qr-shell-shimmer { 0%, 70% { transform: translateX(-160%) skewX(-18deg); } 100% { transform: translateX(300%) skewX(-18deg); } }
.qr-shell-plan {
	display: inline-flex;
	align-items: center;
	gap: 0.3rem;
	height: 1.625rem;
	padding: 0 0.65rem;
	border-radius: var(--q-r-pill);
	background: var(--q-grad-pro) #7a22e8;
	color: #fff;
	font-size: var(--q-fs-2xs);
	font-weight: 800;
	letter-spacing: 0.08em;
	text-decoration: none;
	box-shadow: 0 4px 12px -6px rgba(122, 34, 232, 0.9);
	transition: translate var(--q-dur-3) var(--q-ease-out);
}
.qr-shell-plan:hover { color: #fff; translate: 0 -1px; }

.qr-shell-header .qr-app-disclosure { position: relative; }
.qr-shell-header :is(.qr-app-icon-button, .qr-profile__trigger) {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.25rem;
	min-width: 2.125rem;
	height: 2.125rem;
	padding: 0 0.4375rem;
	border: 1px solid transparent;
	border-radius: var(--q-r);
	background: transparent;
	color: var(--q-text-2);
	cursor: pointer;
	transition: background-color var(--q-dur-1) var(--q-ease), color var(--q-dur-1) var(--q-ease);
}
.qr-shell-header :is(.qr-app-icon-button, .qr-profile__trigger):hover,
.qr-shell-header :is(.qr-app-icon-button, .qr-profile__trigger)[aria-expanded="true"] { background: var(--q-surface-3); color: var(--q-text); }
.qr-shell-header .qr-next-icon { width: 1rem; height: 1rem; }
.qr-shell-header .qr-profile__trigger .qr-next-icon { width: 0.875rem; height: 0.875rem; transition: transform var(--q-dur-2) var(--q-ease); }
.qr-shell-header .qr-profile__trigger[aria-expanded="true"] .qr-next-icon { transform: rotate(180deg); }
.qr-shell-header .qr-profile__avatar { display: grid; place-items: center; width: 1.75rem; height: 1.75rem; border-radius: 50%; background: var(--q-grad) #1466f0; color: #fff; font-size: var(--q-fs-xs); font-weight: 750; box-shadow: 0 0 0 2px var(--q-surface), 0 0 0 3.5px var(--q-accent-line); }
.qr-shell-header.qr-shell-header--pro .qr-profile__avatar { background: var(--q-grad-pro) #7a22e8; box-shadow: 0 0 0 2px var(--q-surface), 0 0 0 3.5px #b98cff; }
.qr-shell-header .qr-profile__name { display: none; }

.qr-shell-header .qr-app-popover {
	position: absolute;
	top: calc(100% + 0.5rem);
	right: 0;
	z-index: 110;
	min-width: 12rem;
	max-width: calc(100vw - 2rem);
	padding: var(--q-1);
	border: 1px solid var(--q-line);
	border-radius: var(--q-r-lg);
	background: color-mix(in srgb, var(--q-surface) 97%, transparent);
	-webkit-backdrop-filter: blur(18px) saturate(1.6);
	backdrop-filter: blur(18px) saturate(1.6);
	color: var(--q-text);
	box-shadow: var(--q-shadow-pop);
	animation: qr-shell-pop var(--q-dur-3) var(--q-ease-out);
	transform-origin: top right;
}
.qr-shell-header .qr-app-theme-choices { display: grid; gap: 2px; }
.qr-shell-header .qr-app-theme-choices button,
.qr-shell-header .qr-profile__menu > a {
	display: flex;
	align-items: center;
	gap: var(--q-3);
	width: 100%;
	min-height: 2.25rem;
	padding: 0 var(--q-3);
	border: 0;
	border-radius: var(--q-r-sm);
	background: transparent;
	color: var(--q-text);
	font: inherit;
	font-size: var(--q-fs-md);
	font-weight: 500;
	text-align: left;
	text-decoration: none;
	cursor: pointer;
}
.qr-shell-header .qr-app-theme-choices button .qr-next-icon,
.qr-shell-header .qr-profile__menu > a .qr-next-icon { color: var(--q-text-3); }
.qr-shell-header .qr-app-theme-choices button:hover,
.qr-shell-header .qr-profile__menu > a:hover { background: var(--q-accent-soft); color: var(--q-accent-text); }
.qr-shell-header .qr-app-theme-choices button:hover .qr-next-icon,
.qr-shell-header .qr-profile__menu > a:hover .qr-next-icon { color: currentColor; }
.qr-shell-header .qr-app-theme-choices button[aria-pressed="true"] { background: var(--q-accent-soft); color: var(--q-accent-text); }
.qr-shell-header .qr-app-theme-choices button[aria-pressed="true"] .qr-next-icon { color: currentColor; }
.qr-shell-header .qr-profile__menu { min-width: 16rem; }
.qr-shell-header .qr-profile__identity { display: grid; gap: 2px; margin-bottom: var(--q-1); padding: var(--q-3); border-bottom: 1px solid var(--q-line); }
.qr-shell-header .qr-profile__identity strong { font-size: var(--q-fs-md); font-weight: 650; }
.qr-shell-header .qr-profile__identity span { overflow: hidden; color: var(--q-text-3); font-size: var(--q-fs-sm); text-overflow: ellipsis; white-space: nowrap; }
.qr-shell-header .qr-profile__menu > a[aria-current="page"] { background: var(--q-surface-3); font-weight: 600; }
.qr-shell-header .qr-profile__menu > .qr-profile__logout { margin-top: var(--q-1); border-top: 1px solid var(--q-line); border-radius: 0 0 var(--q-r-sm) var(--q-r-sm); color: var(--q-text-2); }

.qr-shell-mobile-trigger, .qr-shell-mobile-menu { display: none !important; }
.qr-shell-header [hidden] { display: none !important; }

:is(.qr-shell-header, .qr-shell-footer) :focus-visible { outline: 2px solid var(--q-focus); outline-offset: 2px; border-radius: var(--q-r-sm); }

@keyframes qr-shell-pop { from { opacity: 0; transform: translateY(-6px) scale(0.96); } }
@keyframes qr-shell-drop { from { opacity: 0; transform: translateY(-6px); } }

/* ---------- Footer ---------- */
/* Unpositioned on purpose: sticky workspace panels must paint above the footer. */
.qr-shell-footer { border-top: 1px solid var(--q-line); background: linear-gradient(90deg, transparent, rgba(31, 116, 255, 0.55), rgba(18, 194, 255, 0.55), transparent) top center / min(60rem, 90%) 1px no-repeat, var(--q-surface); }
.qr-shell-footer__grid {
	display: grid;
	grid-template-columns: minmax(14rem, 1.6fr) 1fr 1fr 1.5fr;
	gap: var(--q-8);
	width: min(100% - 2 * var(--q-gutter), var(--q-public-max));
	margin: 0 auto;
	padding: var(--q-12) 0 var(--q-8);
}
.qr-shell-footer__grid--without-legal { grid-template-columns: minmax(14rem, 2fr) 1fr 1fr; }
.qr-shell-footer__brand > p { max-width: 32ch; margin: var(--q-4) 0 0; color: var(--q-text-3); font-size: var(--q-fs-md); line-height: var(--q-lh-relaxed); }
.qr-shell-footer__contact { display: inline-block; margin-top: var(--q-3); color: var(--q-accent-text); font-size: var(--q-fs-md); font-weight: 600; text-decoration: none; }
.qr-shell-footer__contact:hover { text-decoration: underline; text-underline-offset: 0.2em; }
.qr-shell-footer nav { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
.qr-shell-footer strong { display: block; margin: 0 0 var(--q-3); color: var(--q-text); font-size: var(--q-fs-sm); font-weight: 650; }
.qr-shell-footer nav > a { display: inline-flex; align-items: center; min-height: 2rem; color: var(--q-text-2); font-size: var(--q-fs-md); text-decoration: none; }
.qr-shell-footer nav > a:hover, .qr-shell-footer nav > a[aria-current="page"] { color: var(--q-accent-text); text-decoration: underline; text-underline-offset: 3px; }
.qr-shell-footer__bottom {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	gap: var(--q-2) var(--q-6);
	width: min(100% - 2 * var(--q-gutter), var(--q-public-max));
	margin: 0 auto;
	padding: var(--q-5) 0;
	border-top: 1px solid var(--q-line);
}
.qr-shell-footer__bottom p { margin: 0; color: var(--q-text-3); font-size: var(--q-fs-sm); }

.qr-shell-footer--compact { background: transparent; }
.qr-shell-footer__bar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--q-2) var(--q-6);
	width: min(100% - 2 * var(--q-gutter), var(--q-app-max));
	margin: 0 auto;
	padding: var(--q-5) 0;
	color: var(--q-text-3);
	font-size: var(--q-fs-sm);
}
.qr-shell-footer__bar > p { margin: 0 auto 0 0; }
.qr-shell-footer--compact :is(nav, .qr-shell-footer__legal) { display: flex; flex-flow: row wrap; align-items: center; gap: 0 var(--q-4); }
.qr-shell-footer--compact .qr-shell-footer__legal strong { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.qr-shell-footer--compact nav > a { min-height: 1.75rem; color: var(--q-text-3); font-size: var(--q-fs-sm); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
	.qr-shell-nav, .qr-shell-header__actions { display: none; }
	.qr-shell-header__inner { flex-wrap: wrap; justify-content: space-between; gap: var(--q-2) var(--q-3); }
	.qr-shell-mobile-trigger { display: inline-flex !important; margin-left: auto; }
	.qr-shell-header .qr-shell-mobile-trigger { border-color: var(--q-line); }
	.qr-shell-mobile-menu:not([hidden]) {
		display: block !important;
		max-height: calc(100dvh - var(--q-header-h));
		overflow: auto;
		overscroll-behavior: contain;
		border-top: 1px solid var(--q-line);
		background: var(--q-surface);
		animation: qr-shell-drop var(--q-dur-2) var(--q-ease-out);
	}
	.qr-shell-mobile-menu nav { display: grid; gap: 2px; width: calc(100% - 2 * var(--q-gutter)); margin: 0 auto; padding: var(--q-3) 0 var(--q-4); }
	.qr-shell-mobile-menu nav > a {
		display: flex;
		align-items: center;
		min-height: var(--q-touch);
		padding: 0 var(--q-3);
		border-radius: var(--q-r);
		color: var(--q-text);
		font-size: var(--q-fs-base);
		font-weight: 550;
		text-decoration: none;
	}
	.qr-shell-mobile-menu nav > a:hover { background: var(--q-surface-3); }
	.qr-shell-mobile-menu nav > a[aria-current="page"] { background: var(--q-accent-soft); color: var(--q-accent-text); font-weight: 650; }
	.qr-shell-mobile-menu nav > a.qr-shell-mobile-menu__minor { min-height: 2.5rem; color: var(--q-text-2); font-size: var(--q-fs-md); }
	.qr-shell-mobile-menu nav > a.qr-shell-mobile-menu__cta { justify-content: center; margin-top: var(--q-2); background: var(--q-grad) #1466f0; color: #fff; font-weight: 700; box-shadow: 0 8px 20px -10px rgba(20, 102, 240, 0.85); }
	.qr-shell-mobile-menu nav > a.qr-shell-mobile-menu__upgrade { justify-content: center; gap: 0.4rem; margin-top: var(--q-2); background: var(--q-grad-pro) #7a22e8; color: #fff; font-weight: 700; box-shadow: 0 8px 20px -10px rgba(122, 34, 232, 0.9); }
	.qr-shell-mobile-menu__rule { height: 1px; margin: var(--q-2) 0; background: var(--q-line); }
	.qr-shell-mobile-menu .qr-app-theme-choices { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2px; margin: var(--q-3) 0 var(--q-1); padding: 3px; border: 1px solid var(--q-line); border-radius: var(--q-r); background: var(--q-surface-2); }
	.qr-shell-mobile-menu .qr-app-theme-choices button { display: inline-flex; align-items: center; justify-content: center; gap: var(--q-2); min-height: 2.25rem; border: 0; border-radius: var(--q-r-sm); background: none; color: var(--q-text-2); font: inherit; font-size: var(--q-fs-sm); font-weight: 600; cursor: pointer; }
	.qr-shell-mobile-menu .qr-app-theme-choices button[aria-pressed="true"] { background: var(--q-surface); color: var(--q-text); box-shadow: 0 0 0 1px var(--q-line); }
	.qr-shell-mobile-menu .qr-app-theme-choices .qr-next-icon { width: 1rem; height: 1rem; }
	.qr-shell-mobile-menu .qr-profile__logout { color: var(--q-text-2) !important; }
	.qr-shell-footer__grid, .qr-shell-footer__grid--without-legal { grid-template-columns: 1fr 1fr; gap: var(--q-6); padding-top: var(--q-8); }
	.qr-shell-footer__brand, .qr-shell-footer__legal { grid-column: 1 / -1; }
}
@media (max-width: 782px) {
	.admin-bar .qr-shell-header { top: 46px; }
}
@media (max-width: 600px) {
	.admin-bar .qr-shell-header { top: 0; }
	.qr-shell-footer__bar > p { flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) {
	.qr-shell-header *, .qr-shell-footer *, .qr-shell-header .qr-app-popover, .qr-shell-mobile-menu { animation: none !important; transition: none !important; }
}