/* ==========================================================================
   X6 Subsurface 4D — User Manuals (PDF Library)
   Cards grid · Modal viewer · Print-friendly @media print
   ========================================================================== */

.section--manuals { padding: 60px 0 80px; }

/* === Filter Pills === */
.manuals-filters {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	justify-content: center;
	margin: 28px 0 32px;
}
.manuals-filter {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	background: rgba(15, 25, 35, .55);
	border: 1px solid rgba(0, 242, 255, .25);
	border-radius: 18px;
	padding: 8px 16px;
	color: #cbd5e1;
	font-size: 13px;
	font-weight: 700;
	letter-spacing: .5px;
	cursor: pointer;
	transition: all .25s;
}
.manuals-filter:hover {
	border-color: rgba(0, 242, 255, .55);
	background: rgba(0, 242, 255, .08);
}
.manuals-filter--active {
	background: rgba(0, 242, 255, .18);
	border-color: #00f2ff;
	color: #fff;
}
.manuals-filter__count {
	background: rgba(0, 0, 0, .35);
	border-radius: 10px;
	padding: 2px 8px;
	font-size: 11px;
	font-weight: 800;
}

/* === Cards Grid === */
.manuals-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
	gap: 18px;
}

.manual-card {
	background: linear-gradient(180deg, rgba(15, 25, 35, .85) 0%, rgba(8, 16, 26, .85) 100%);
	border: 1px solid rgba(0, 242, 255, .2);
	border-radius: 14px;
	padding: 18px 18px 14px;
	display: flex;
	flex-direction: column;
	transition: all .3s;
	animation: manual-card-in .5s cubic-bezier(.2, .9, .3, 1) calc(var(--i, 0) * 60ms) backwards;
}
@keyframes manual-card-in {
	from { opacity: 0; transform: translateY(20px); }
	to   { opacity: 1; transform: none; }
}
.manual-card:hover {
	border-color: rgba(0, 242, 255, .55);
	transform: translateY(-3px);
	box-shadow: 0 12px 30px rgba(0, 242, 255, .12);
}
.manual-card--core { border-color: rgba(255, 140, 0, .25); }
.manual-card--core:hover { border-color: rgba(255, 140, 0, .55); box-shadow: 0 12px 30px rgba(255, 140, 0, .12); }
.manual-card--feature { border-color: rgba(168, 85, 247, .22); }
.manual-card--feature:hover { border-color: rgba(168, 85, 247, .55); box-shadow: 0 12px 30px rgba(168, 85, 247, .12); }

.manual-card__header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 12px;
}
.manual-card__icon {
	font-size: 32px;
	line-height: 1;
}
.manual-card__badge {
	background: rgba(0, 0, 0, .45);
	border: 1px solid rgba(255, 255, 255, .12);
	border-radius: 6px;
	padding: 3px 8px;
	font-family: 'JetBrains Mono', monospace;
	font-size: 11px;
	font-weight: 800;
	color: #94a3b8;
	letter-spacing: 1px;
}

.manual-card__title {
	color: #fff;
	font-size: 15px;
	font-weight: 800;
	letter-spacing: .3px;
	margin: 0 0 8px 0;
	line-height: 1.3;
}
.manual-card__desc {
	color: #94a3b8;
	font-size: 12px;
	line-height: 1.5;
	margin: 0 0 12px 0;
	flex-grow: 1;
}

.manual-card__topics {
	list-style: none;
	margin: 0 0 14px 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 4px;
}
.manual-card__topics li {
	color: #cbd5e1;
	font-size: 11px;
	padding-left: 14px;
	position: relative;
}
.manual-card__topics li::before {
	content: "▸";
	position: absolute;
	left: 0;
	color: #00f2ff;
	font-size: 10px;
}

.manual-card__footer {
	display: flex;
	flex-direction: column;
	gap: 10px;
	border-top: 1px solid rgba(255, 255, 255, .06);
	padding-top: 12px;
}
.manual-card__meta {
	display: flex;
	align-items: center;
	gap: 6px;
	color: #64748b;
	font-size: 10px;
	font-weight: 700;
	letter-spacing: .5px;
	text-transform: uppercase;
}
.manual-card__divider { color: #475569; }
.manual-card__actions {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 6px;
}
.manual-card__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 5px;
	padding: 9px 12px;
	border-radius: 8px;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: .3px;
	cursor: pointer;
	border: 1px solid transparent;
	transition: all .2s;
}
.manual-card__btn--ghost {
	background: rgba(0, 0, 0, .3);
	border-color: rgba(0, 242, 255, .25);
	color: #cbd5e1;
}
.manual-card__btn--ghost:hover {
	border-color: #00f2ff;
	color: #fff;
}
.manual-card__btn--primary {
	background: linear-gradient(135deg, #14B8A6, #00f2ff);
	color: #061018;
}
.manual-card__btn--primary:hover {
	box-shadow: 0 0 12px rgba(0, 242, 255, .5);
}

.manuals-help {
	margin-top: 36px;
	padding: 18px 20px;
	background: rgba(15, 25, 35, .35);
	border: 1px dashed rgba(0, 242, 255, .25);
	border-radius: 12px;
	text-align: center;
	color: #94a3b8;
	font-size: 13px;
	line-height: 1.6;
}
.manuals-help strong { color: #fff; font-size: 14px; }
.manuals-help a { color: #00f2ff; }

/* ==========================================================================
   Modal Viewer
   ========================================================================== */

.manual-viewer {
	position: fixed;
	inset: 0;
	z-index: 9000;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 24px;
	animation: manual-viewer-in .25s ease-out;
}
.manual-viewer[hidden] { display: none; }
@keyframes manual-viewer-in {
	from { opacity: 0; }
	to { opacity: 1; }
}
.manual-viewer__backdrop {
	position: absolute;
	inset: 0;
	background: rgba(2, 6, 12, .82);
	backdrop-filter: blur(6px);
	-webkit-backdrop-filter: blur(6px);
}
.manual-viewer__panel {
	position: relative;
	z-index: 1;
	width: 100%;
	max-width: 900px;
	max-height: calc(100vh - 48px);
	background: linear-gradient(180deg, #0a1525 0%, #050a14 100%);
	border: 1px solid rgba(0, 242, 255, .25);
	border-radius: 14px;
	display: flex;
	flex-direction: column;
	box-shadow: 0 24px 80px rgba(0, 0, 0, .65);
	animation: manual-panel-in .35s cubic-bezier(.2, .9, .3, 1);
}
@keyframes manual-panel-in {
	from { opacity: 0; transform: translateY(24px) scale(.97); }
	to { opacity: 1; transform: none; }
}
.manual-viewer__header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 14px 20px;
	border-bottom: 1px solid rgba(0, 242, 255, .15);
	flex-shrink: 0;
}
.manual-viewer__title-block {
	display: flex;
	align-items: center;
	gap: 14px;
}
.manual-viewer__icon { font-size: 28px; }
.manual-viewer__title {
	color: #fff;
	font-size: 16px;
	font-weight: 800;
	margin: 0;
	line-height: 1.2;
}
.manual-viewer__subtitle {
	color: #94a3b8;
	font-size: 11px;
	margin: 2px 0 0;
}
.manual-viewer__actions { display: flex; gap: 8px; }
.manual-viewer__btn {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 8px 14px;
	border-radius: 8px;
	font-size: 12px;
	font-weight: 700;
	cursor: pointer;
	background: rgba(0, 0, 0, .3);
	border: 1px solid rgba(0, 242, 255, .25);
	color: #cbd5e1;
}
.manual-viewer__btn:hover { border-color: #00f2ff; color: #fff; }
.manual-viewer__btn--primary {
	background: linear-gradient(135deg, #14B8A6, #00f2ff);
	border-color: transparent;
	color: #061018;
}
.manual-viewer__body {
	overflow-y: auto;
	padding: 24px 28px 32px;
	flex: 1;
	color: #e2e8f0;
}
.manual-viewer__loading {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 14px;
	padding: 60px 0;
	color: #94a3b8;
}
.manual-viewer__spinner {
	width: 32px;
	height: 32px;
	border: 3px solid rgba(0, 242, 255, .2);
	border-top-color: #00f2ff;
	border-radius: 50%;
	animation: manual-spin .8s linear infinite;
}
@keyframes manual-spin {
	to { transform: rotate(360deg); }
}

/* ==========================================================================
   Manual Document (HTML content rendered both screen + print)
   ========================================================================== */

.manual-doc {
	font-family: 'Inter', system-ui, sans-serif;
	color: #e2e8f0;
	line-height: 1.65;
	font-size: 14px;
	max-width: 780px;
	margin: 0 auto;
}
.manual-doc__cover {
	border-bottom: 2px solid rgba(0, 242, 255, .35);
	padding-bottom: 18px;
	margin-bottom: 28px;
}
.manual-doc__brand {
	font-family: 'JetBrains Mono', monospace;
	font-size: 10px;
	letter-spacing: 2px;
	color: #00f2ff;
	font-weight: 800;
	margin-bottom: 8px;
}
.manual-doc h1 {
	font-size: 26px;
	font-weight: 900;
	color: #fff;
	letter-spacing: .3px;
	margin: 0 0 8px;
	line-height: 1.2;
}
.manual-doc__subtitle {
	font-size: 13px;
	color: #94a3b8;
	margin: 0 0 8px;
	font-style: italic;
}
.manual-doc__meta {
	font-family: 'JetBrains Mono', monospace;
	font-size: 10px;
	color: #64748b;
	letter-spacing: .8px;
}
.manual-doc h2 {
	color: #fff;
	font-size: 18px;
	font-weight: 800;
	margin: 28px 0 12px;
	padding-bottom: 6px;
	border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.manual-doc h3 {
	color: #00f2ff;
	font-size: 14px;
	font-weight: 800;
	margin: 18px 0 8px;
	letter-spacing: .3px;
}
.manual-doc p { margin: 0 0 12px; }
.manual-doc ul, .manual-doc ol {
	padding-left: 20px;
	margin: 0 0 14px;
}
.manual-doc li { margin-bottom: 6px; }
.manual-doc strong { color: #fff; }
.manual-doc code {
	background: rgba(0, 242, 255, .12);
	color: #00f2ff;
	padding: 1px 6px;
	border-radius: 4px;
	font-family: 'JetBrains Mono', monospace;
	font-size: 12px;
}
.manual-doc__pre {
	background: #050a14;
	color: #00f2ff;
	border: 1px solid rgba(0, 242, 255, .25);
	border-radius: 8px;
	padding: 12px;
	font-family: 'JetBrains Mono', monospace;
	font-size: 12px;
	overflow-x: auto;
	margin: 10px 0;
}
.manual-doc__table {
	width: 100%;
	border-collapse: collapse;
	margin: 14px 0;
	font-size: 12px;
}
.manual-doc__table th, .manual-doc__table td {
	padding: 8px 10px;
	border-bottom: 1px solid rgba(255, 255, 255, .08);
	text-align: left;
	vertical-align: top;
}
.manual-doc__table th {
	color: #00f2ff;
	font-weight: 800;
	letter-spacing: .3px;
	font-size: 11px;
	text-transform: uppercase;
	border-bottom-color: rgba(0, 242, 255, .35);
}
.manual-doc__table--small { font-size: 11px; }
.manual-doc__callout {
	background: rgba(0, 242, 255, .08);
	border-left: 3px solid #00f2ff;
	padding: 12px 16px;
	border-radius: 4px;
	margin: 14px 0;
	font-size: 13px;
}
.manual-doc__callout--info { border-left-color: #00f2ff; }
.manual-doc__callout strong { color: #00f2ff; }
.manual-doc__footer {
	margin-top: 36px;
	padding-top: 16px;
	border-top: 1px solid rgba(255, 255, 255, .12);
	font-size: 11px;
	color: #64748b;
	text-align: center;
}

/* ==========================================================================
   PRINT STYLES — produces beautiful PDF when user clicks Download/Print
   ========================================================================== */

@media print {
	@page {
		size: A4;
		margin: 18mm 16mm;
	}

	/* Hide everything except the manual content */
	body * { visibility: hidden !important; }
	.manual-viewer__body, .manual-viewer__body * { visibility: visible !important; }
	.manual-viewer__body {
		position: absolute !important;
		left: 0;
		top: 0;
		width: 100%;
		padding: 0 !important;
		background: white !important;
		color: #1a1f2e !important;
		overflow: visible !important;
	}

	/* Reset background to white for paper */
	.manual-viewer, .manual-viewer__panel, .manual-viewer__body {
		background: white !important;
		box-shadow: none !important;
		border: none !important;
		max-height: none !important;
		max-width: none !important;
		position: static !important;
	}

	/* Document content — light theme for paper */
	.manual-doc {
		color: #1a1f2e !important;
		font-size: 11pt;
		line-height: 1.5;
		max-width: none;
	}
	.manual-doc__cover {
		border-bottom-color: #00766c !important;
		page-break-after: avoid;
	}
	.manual-doc__brand { color: #00766c !important; }
	.manual-doc h1 { color: #0a1525 !important; font-size: 22pt; }
	.manual-doc__subtitle { color: #4a5563 !important; }
	.manual-doc__meta { color: #6b7280 !important; }
	.manual-doc h2 {
		color: #0a1525 !important;
		font-size: 14pt;
		border-bottom-color: #c8d0d8 !important;
		page-break-after: avoid;
	}
	.manual-doc h3 {
		color: #00766c !important;
		font-size: 12pt;
		page-break-after: avoid;
	}
	.manual-doc strong { color: #0a1525 !important; }
	.manual-doc code {
		background: #f0f4f8 !important;
		color: #00766c !important;
	}
	.manual-doc__pre {
		background: #f7f9fb !important;
		color: #0a1525 !important;
		border-color: #c8d0d8 !important;
	}
	.manual-doc__table th {
		color: #00766c !important;
		border-bottom-color: #00766c !important;
	}
	.manual-doc__table td, .manual-doc__table th {
		border-bottom-color: #e1e6ed !important;
	}
	.manual-doc__callout {
		background: #f0fdfa !important;
		border-left-color: #00766c !important;
	}
	.manual-doc__callout strong { color: #00766c !important; }
	.manual-doc__footer {
		color: #6b7280 !important;
		border-top-color: #c8d0d8 !important;
	}

	/* Page breaks */
	.manual-doc section { page-break-inside: avoid; }
	.manual-doc__cover { page-break-after: avoid; }
	.manual-doc table, .manual-doc__pre { page-break-inside: avoid; }

	/* Hide UI chrome */
	.manual-viewer__header,
	.manual-viewer__backdrop,
	.manuals-grid,
	.manuals-filters,
	.manuals-help,
	.section-header,
	header.site-header,
	footer.site-footer,
	.no-print { display: none !important; }
}