/* ── Loading indicator ── */
/* Two modes: is-page covers everything on a real page load, is-inline covers
   the content region only when the same page is swapping view. */

.page-loader {
	position: fixed;
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transition: opacity 0.16s ease, visibility 0.16s ease;
}

/* ── Page mode ── */

.page-loader.is-page {
	inset: 0;
	z-index: var(--z-loader);
	background: var(--bg-primary);
}

/* ── Inline mode ── */
/* Docked to where .main-content starts, so the chrome stays live. */

.page-loader.is-inline {
	top: var(--topbar-height);
	right: 0;
	bottom: 0;
	left: var(--sidebar-rail);
	z-index: calc(var(--z-chrome) - 100);
	background: color-mix(in srgb, var(--bg-page) 92%, transparent);
}

body:has(.sidebar.hidden) .page-loader.is-inline {
	left: 0;
}

body:has(.impersonation-banner) .page-loader.is-inline {
	top: calc(var(--topbar-height) + 34px);
}

body.chromeless .page-loader.is-inline {
	inset: 0;
}

.page-loader.is-page .page-loader-stage-inline,
.page-loader.is-inline .page-loader-stage-page {
	display: none;
}

/* ── Visibility ── */

/* Armed by JS when we're navigating away from the current page. */
.page-loader.is-visible {
	opacity: 1;
	visibility: visible;
	pointer-events: auto;
}

/* Shown from the markup; the animation's tail clears it */
.page-loader.is-initial {
	animation: page-loader-initial 15s ease forwards;
}

@keyframes page-loader-initial {
	0%    { opacity: 0; visibility: visible; }
	1%    { opacity: 1; visibility: visible; }  /* 0.15s of 15s */
	96%   { opacity: 1; visibility: visible; }
	100%  { opacity: 0; visibility: hidden; }
}

/* ── Page mode: mark + orbiting arc ── */

.page-loader-stage-page {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--sp-5);
}

.page-loader-spinner {
	position: relative;
	width: 96px;
	height: 96px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.page-loader-spinner-glyph {
	width: auto;
	height: 44px;
	display: block;
}

.page-loader-ring {
	position: absolute;
	inset: 0;
	border-radius: var(--radius-round);
	border: 2px solid var(--border-color);
	border-top-color: var(--primary-color);
	animation: page-loader-spin 0.9s linear infinite;
}

@keyframes page-loader-spin {
	to { transform: rotate(360deg); }
}

.page-loader-text {
	font-size: var(--fs-sm);
	font-weight: 600;
	color: var(--text-muted);
}

/* ── Inline mode: ring and status ── */

.page-loader-stage-inline {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--sp-3);
}

.page-loader-ring-sm {
	position: relative;
	width: 40px;
	height: 40px;
}

/* ── Mobile ── */

@media (max-width: 1080px) {
	.page-loader.is-inline {
		left: 0;
	}
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
	.page-loader-ring {
		animation-name: page-loader-pulse;
	}

	@keyframes page-loader-pulse {
		0%, 100% { opacity: 0.35; }
		50%      { opacity: 1; }
	}
}

/* Never let the overlay end up in a printout. */
@media print {
	.page-loader {
		display: none !important;
	}
}