/**
 * Homepage sample PDF viewer (assets/js/sample-pdf-viewer.js).
 * A native modal <dialog>: navy header, light document stage, control bar.
 * View-only rules (no selection / dragging) apply inside the viewer only.
 */

html.qehs-pdf-viewer-open {
	overflow: hidden;
}

.qehs-pdf-viewer {
	display: flex;
	flex-direction: column;
	width: min(960px, calc(100vw - 32px));
	height: min(900px, calc(100vh - 32px));
	height: min(900px, calc(100dvh - 32px));
	max-width: none;
	max-height: none;
	padding: 0;
	border: none;
	border-radius: var(--qehs-radius-lg, 12px);
	background-color: var(--qehs-background, #FFFFFF);
	color: var(--qehs-text, #000000);
	box-shadow: 0 24px 64px rgba(2, 30, 64, 0.35);
	overflow: hidden;
	-webkit-user-select: none;
	user-select: none;
	-webkit-touch-callout: none;
}

.qehs-pdf-viewer:not([open]) {
	display: none;
}

.qehs-pdf-viewer::backdrop {
	background-color: rgba(2, 30, 64, 0.72);
}

.qehs-pdf-viewer__head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	padding: 12px 16px 12px 22px;
	background-color: var(--qehs-primary, #021E40);
	color: #FFFFFF;
}

.qehs-pdf-viewer__title {
	margin: 0;
	font-size: 1.05rem;
	font-weight: 700;
	color: #FFFFFF;
}

.qehs-pdf-viewer__head .qehs-pdf-viewer__icon-btn {
	border-color: rgba(255, 255, 255, 0.35);
	background: transparent;
	color: #FFFFFF;
}

.qehs-pdf-viewer__head .qehs-pdf-viewer__icon-btn:hover,
.qehs-pdf-viewer__head .qehs-pdf-viewer__icon-btn:focus-visible {
	background-color: rgba(255, 255, 255, 0.12);
	color: #FFFFFF;
}

.qehs-pdf-viewer__stage {
	position: relative;
	flex: 1;
	min-height: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 20px;
	background-color: #E9EEF4;
	overflow: auto;
	overscroll-behavior: contain;
}

/* Zoomed in: scroll from the top-left instead of centring a cropped page. */
.qehs-pdf-viewer__stage.is-zoomed {
	align-items: flex-start;
	justify-content: flex-start;
}

.qehs-pdf-viewer__stage:focus-visible {
	outline: 2px solid var(--qehs-secondary, #7EAE30);
	outline-offset: -2px;
}

.qehs-pdf-viewer__canvas {
	display: block;
	flex-shrink: 0;
	margin: auto;
	background-color: #FFFFFF;
	box-shadow: 0 4px 18px rgba(2, 30, 64, 0.18);
	pointer-events: none;
	-webkit-user-drag: none;
}

.qehs-pdf-viewer__status {
	margin: auto;
	padding: 0 16px;
	font-size: 0.95rem;
	font-weight: 600;
	text-align: center;
	color: var(--qehs-primary, #021E40);
}

.qehs-pdf-viewer__status.is-error {
	color: var(--qehs-error, #B63831);
}

.qehs-pdf-viewer__bar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 10px 16px;
	padding: 10px 16px;
	border-top: 1px solid var(--qehs-border, #E8E8E8);
	background-color: #FFFFFF;
}

.qehs-pdf-viewer__group {
	display: flex;
	align-items: center;
	gap: 8px;
}

.qehs-pdf-viewer__icon-btn,
.qehs-pdf-viewer__text-btn,
.qehs-pdf-viewer__nav-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	height: 38px;
	border: 1px solid var(--qehs-border, #E8E8E8);
	border-radius: 8px;
	background-color: #FFFFFF;
	color: var(--qehs-primary, #021E40);
	font-family: inherit;
	font-size: 0.88rem;
	font-weight: 600;
	cursor: pointer;
	transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.qehs-pdf-viewer__icon-btn {
	width: 38px;
	padding: 0;
}

.qehs-pdf-viewer__text-btn,
.qehs-pdf-viewer__nav-btn {
	padding: 0 14px;
}

.qehs-pdf-viewer__nav-btn {
	border-color: var(--qehs-secondary, #7EAE30);
	color: var(--qehs-secondary, #7EAE30);
}

.qehs-pdf-viewer__icon-btn:hover:not(:disabled),
.qehs-pdf-viewer__text-btn:hover:not(:disabled) {
	border-color: var(--qehs-primary, #021E40);
}

.qehs-pdf-viewer__nav-btn:hover:not(:disabled),
.qehs-pdf-viewer__nav-btn:focus-visible:not(:disabled) {
	background-color: var(--qehs-secondary, #7EAE30);
	color: #FFFFFF;
}

.qehs-pdf-viewer button:focus-visible {
	outline: 2px solid var(--qehs-secondary, #7EAE30);
	outline-offset: 2px;
}

.qehs-pdf-viewer button:disabled {
	opacity: 0.4;
	cursor: not-allowed;
}

.qehs-pdf-viewer__page,
.qehs-pdf-viewer__zoom {
	min-width: 52px;
	font-size: 0.88rem;
	font-weight: 600;
	text-align: center;
	color: var(--qehs-primary, #021E40);
	font-variant-numeric: tabular-nums;
}

@media (max-width: 600px) {
	.qehs-pdf-viewer {
		width: calc(100vw - 16px);
		height: calc(100vh - 16px);
		height: calc(100dvh - 16px);
		border-radius: 10px;
	}

	.qehs-pdf-viewer__head {
		padding: 8px 10px 8px 16px;
	}

	.qehs-pdf-viewer__stage {
		padding: 10px;
	}

	.qehs-pdf-viewer__bar {
		justify-content: center;
		padding: 8px 10px;
	}

	.qehs-pdf-viewer__nav-btn span {
		position: absolute;
		width: 1px;
		height: 1px;
		overflow: hidden;
		clip: rect(0 0 0 0);
		white-space: nowrap;
	}

	.qehs-pdf-viewer__nav-btn {
		width: 38px;
		padding: 0;
	}
}

/* Printing while the viewer is open prints nothing. */
@media print {
	html.qehs-pdf-viewer-open body,
	.qehs-pdf-viewer {
		display: none !important;
	}
}