/* ontology_graph.css
 * Dédalo Ontology graph — dark/light theme.
 * Dark: cyber/Tron aesthetic on pure black with perspective grid.
 * Light: clean white canvas with Dédalo brand orange.
 * Theme is controlled via [data-theme] on #ontology_tree.
 */

/* Section wrapper */
.ontology_nodes_section {
	position: relative;
	width: 100vw;
	margin-left: calc(50% - 50vw);
	margin-right: calc(50% - 50vw);
	margin: 0;
	padding: 0;
}

/* ── Graph container ── */
#ontology_tree {
	position: relative;
	width: 100%;
	height: 82vh;
	overflow: hidden;
}

@media (max-width: 768px) {
	#ontology_tree {
		height: 82vh;
	}
}

/* ── DARK THEME (default) ── */
#ontology_tree[data-theme="dark"] {
	background-color: #000000;
	background-image:
		linear-gradient(rgba(247, 138, 28, 0.12) 1px, transparent 1px),
		linear-gradient(90deg, rgba(247, 138, 28, 0.12) 1px, transparent 1px),
		linear-gradient(180deg, #000000 0%, #000000 45%, rgba(247, 138, 28, 0.03) 55%, #000000 100%),
		radial-gradient(800px 300px at 50% 0%, rgba(255, 0, 128, 0.06), transparent 70%);
	background-size: 40px 40px, 40px 40px, 100% 100%, 100% 100%;
	background-position: center 100%, center 100%, center, center;
}
.ontology_nodes_section:has(#ontology_tree[data-theme="dark"]) {
	background-color: #000000;
}

/* Perspective grid floor — dark only */
#ontology_tree[data-theme="dark"]::before {
	content: '';
	position: absolute;
	bottom: 0;
	left: -50%;
	width: 200%;
	height: 50%;
	background-image:
		linear-gradient(rgba(247, 138, 28, 0.2) 1px, transparent 1px),
		linear-gradient(90deg, rgba(247, 138, 28, 0.2) 1px, transparent 1px);
	background-size: 50px 50px;
	transform: perspective(400px) rotateX(60deg);
	transform-origin: bottom center;
	pointer-events: none;
	z-index: 0;
}
#ontology_tree[data-theme="dark"]::after {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 55%;
	background: linear-gradient(180deg, #000000 0%, #000000 70%, transparent 100%);
	pointer-events: none;
	z-index: 1;
}

/* ── LIGHT THEME (inverse of dark) ── */
#ontology_tree[data-theme="light"] {
	background-color: #ffffff;
	background-image:
		linear-gradient(rgba(247, 138, 28, 0.12) 1px, transparent 1px),
		linear-gradient(90deg, rgba(247, 138, 28, 0.12) 1px, transparent 1px),
		linear-gradient(180deg, #ffffff 0%, #ffffff 45%, rgba(247, 138, 28, 0.03) 55%, #ffffff 100%),
		radial-gradient(800px 300px at 50% 0%, rgba(255, 0, 128, 0.06), transparent 70%);
	background-size: 40px 40px, 40px 40px, 100% 100%, 100% 100%;
	background-position: center 100%, center 100%, center, center;
}
.ontology_nodes_section:has(#ontology_tree[data-theme="light"]) {
	background-color: #ffffff;
}
/* Perspective grid floor — light (inverse) */
#ontology_tree[data-theme="light"]::before {
	content: '';
	position: absolute;
	bottom: 0;
	left: -50%;
	width: 200%;
	height: 50%;
	background-image:
		linear-gradient(rgba(247, 138, 28, 0.2) 1px, transparent 1px),
		linear-gradient(90deg, rgba(247, 138, 28, 0.2) 1px, transparent 1px);
	background-size: 50px 50px;
	transform: perspective(400px) rotateX(60deg);
	transform-origin: bottom center;
	pointer-events: none;
	z-index: 0;
}
/* Top fade so grid only shows on bottom half */
#ontology_tree[data-theme="light"]::after {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 55%;
	background: linear-gradient(180deg, #ffffff 0%, #ffffff 70%, transparent 100%);
	pointer-events: none;
	z-index: 1;
}

/* ── HUD overlay ── */
.ontology_graph_hud_corner {
	position: absolute;
	width: 28px;
	height: 28px;
	border: 1.5px solid rgba(247, 138, 28, 0.5);
	pointer-events: none;
	z-index: 10;
}
.ontology_graph_hud_corner.tl { top: 10px; left: 10px; border-right: none; border-bottom: none; }
.ontology_graph_hud_corner.tr { top: 10px; right: 10px; border-left: none; border-bottom: none; }
.ontology_graph_hud_corner.bl { bottom: 10px; left: 10px; border-right: none; border-top: none; }
.ontology_graph_hud_corner.br { bottom: 10px; right: 10px; border-left: none; border-top: none; }

/* Scan lines — dark only */
#ontology_tree[data-theme="dark"] .ontology_graph_scanlines {
	position: absolute;
	top: 0; left: 0; right: 0; bottom: 0;
	pointer-events: none;
	z-index: 9;
	background: repeating-linear-gradient(
		0deg,
		transparent 0px,
		transparent 2px,
		rgba(247, 138, 28, 0.025) 2px,
		rgba(247, 138, 28, 0.025) 3px
	);
}
#ontology_tree[data-theme="light"] .ontology_graph_scanlines {
	display: none;
}

/* ── Theme toggle button ── */
.ontology_graph_theme_toggle {
	position: absolute;
	top: 12px;
	right: 60px;
	z-index: 11;
	width: 32px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1.5px solid rgba(247, 138, 28, 0.5);
	border-radius: 4px;
	background: transparent;
	cursor: pointer;
	font-size: 16px;
	color: #f78a1c;
	font-family: 'Consolas', 'Monaco', monospace;
	transition: background 0.2s ease, border-color 0.2s ease;
}
.ontology_graph_theme_toggle:hover {
	background: rgba(247, 138, 28, 0.15);
	border-color: #f78a1c;
}

/* ── Reset button ── */
.ontology_graph_reset_btn {
	position: absolute;
	top: 12px;
	right: 100px;
	z-index: 11;
	width: 32px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1.5px solid rgba(247, 138, 28, 0.5);
	border-radius: 4px;
	background: transparent;
	cursor: pointer;
	font-size: 18px;
	color: #f78a1c;
	font-family: 'Consolas', 'Monaco', monospace;
	transition: background 0.2s ease, border-color 0.2s ease;
}
.ontology_graph_reset_btn:hover {
	background: rgba(247, 138, 28, 0.15);
	border-color: #f78a1c;
}

/* ── Fullscreen button ── */
.ontology_graph_fullscreen_btn {
	position: absolute;
	top: 12px;
	right: 140px;
	z-index: 11;
	width: 32px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1.5px solid rgba(247, 138, 28, 0.5);
	border-radius: 4px;
	background: transparent;
	cursor: pointer;
	font-size: 18px;
	color: #f78a1c;
	font-family: 'Consolas', 'Monaco', monospace;
	transition: background 0.2s ease, border-color 0.2s ease;
}
.ontology_graph_fullscreen_btn:hover {
	background: rgba(247, 138, 28, 0.15);
	border-color: #f78a1c;
}

/* ── Relations toggle button ── */
.ontology_graph_relations_btn {
	position: absolute;
	top: 12px;
	right: 180px;
	z-index: 11;
	width: 32px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1.5px solid rgba(247, 138, 28, 0.5);
	border-radius: 4px;
	background: transparent;
	cursor: pointer;
	font-size: 18px;
	color: #f78a1c;
	font-family: 'Consolas', 'Monaco', monospace;
	transition: background 0.2s ease, border-color 0.2s ease;
}
.ontology_graph_relations_btn:hover {
	background: rgba(247, 138, 28, 0.15);
	border-color: #f78a1c;
}
.ontology_graph_relations_btn.is_active {
	background: rgba(247, 138, 28, 0.2);
	border-color: #f78a1c;
	color: #ffffff;
}

/* ── Virtual sections toggle button ── */
.ontology_graph_virtual_btn {
	position: absolute;
	top: 12px;
	right: 220px;
	z-index: 11;
	width: 32px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1.5px solid rgba(247, 138, 28, 0.5);
	border-radius: 4px;
	background: transparent;
	cursor: pointer;
	font-size: 16px;
	color: #f78a1c;
	font-family: 'Consolas', 'Monaco', monospace;
	transition: background 0.2s ease, border-color 0.2s ease;
}
.ontology_graph_virtual_btn:hover {
	background: rgba(247, 138, 28, 0.15);
	border-color: #f78a1c;
}
.ontology_graph_virtual_btn.is_active {
	background: rgba(247, 138, 28, 0.2);
	border-color: #f78a1c;
	color: #ffffff;
}

/* ── Fit-all button ── */
.ontology_graph_fit_btn {
	position: absolute;
	top: 12px;
	right: 260px;
	z-index: 11;
	width: 32px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1.5px solid rgba(247, 138, 28, 0.5);
	border-radius: 4px;
	background: transparent;
	cursor: pointer;
	font-size: 16px;
	color: #f78a1c;
	font-family: 'Consolas', 'Monaco', monospace;
	transition: background 0.2s ease, border-color 0.2s ease;
}
.ontology_graph_fit_btn:hover {
	background: rgba(247, 138, 28, 0.15);
	border-color: #f78a1c;
}

/* ── Show-all button ── */
.ontology_graph_showall_btn {
	position: absolute;
	bottom: 12px;
	left: 12px;
	z-index: 11;
	width: 32px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1.5px solid rgba(247, 138, 28, 0.5);
	border-radius: 4px;
	background: transparent;
	cursor: pointer;
	font-size: 16px;
	color: #f78a1c;
	font-family: 'Consolas', 'Monaco', monospace;
	transition: background 0.2s ease, border-color 0.2s ease;
}
.ontology_graph_showall_btn:hover {
	background: rgba(247, 138, 28, 0.15);
	border-color: #f78a1c;
}
.ontology_graph_showall_btn.is_active {
	background: rgba(247, 138, 28, 0.2);
	border-color: #f78a1c;
	color: #ffffff;
}

/* ── Zoom controls (top-right, horizontal) ── */
.ontology_graph_zoom_controls {
	position: absolute;
	top: 12px;
	right: 300px;
	z-index: 11;
	display: flex;
	flex-direction: row;
	gap: 4px;
}
.ontology_graph_zoom_in_btn,
.ontology_graph_zoom_out_btn {
	position: relative;
	width: 32px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1.5px solid rgba(247, 138, 28, 0.5);
	border-radius: 4px;
	background: transparent;
	cursor: pointer;
	font-size: 20px;
	font-weight: 600;
	color: #f78a1c;
	font-family: 'Consolas', 'Monaco', monospace;
	transition: background 0.2s ease, border-color 0.2s ease;
	line-height: 1;
}
.ontology_graph_zoom_in_btn:hover,
.ontology_graph_zoom_out_btn:hover {
	background: rgba(247, 138, 28, 0.15);
	border-color: #f78a1c;
}

/* ── Loading overlay ── */
.ontology_graph_loading {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	background: rgba(0, 5, 10, 0.7);
	z-index: 20;
}
#ontology_tree[data-theme="light"] .ontology_graph_loading {
	background: rgba(255, 255, 255, 0.7);
}
.ontology_graph_loading_text {
	color: #f78a1c;
	font-size: 0.85rem;
	font-family: 'Consolas', 'Monaco', monospace;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	animation: ontology_graph_loading_pulse 1.2s ease-in-out infinite;
}
@keyframes ontology_graph_loading_pulse {
	0%, 100% { opacity: 0.4; }
	50% { opacity: 1; }
}

/* ── Treemap mode ── */
.ontology_graph_tm_cell {
	cursor: pointer;
}
.ontology_graph_tm_rect {
	stroke: rgba(0, 0, 0, 0.3);
	stroke-width: 1px;
	transition: stroke 0.2s ease, stroke-width 0.2s ease;
}
.ontology_graph_tm_cell:hover .ontology_graph_tm_rect {
	stroke: #ffffff;
	stroke-width: 2px;
}
.ontology_graph_tm_label {
	font-size: 11px;
	font-family: 'Consolas', 'Monaco', monospace;
	font-weight: 600;
	pointer-events: none;
	user-select: none;
}
.ontology_graph_tm_model {
	font-size: 9px;
	font-family: 'Consolas', 'Monaco', monospace;
	pointer-events: none;
	user-select: none;
}
.ontology_graph_tm_count {
	font-size: 9px;
	font-family: 'Consolas', 'Monaco', monospace;
	pointer-events: none;
	user-select: none;
}

/* ── Treemap breadcrumb ── */
.ontology_graph_tm_breadcrumb {
	position: absolute;
	top: 12px;
	left: 50%;
	transform: translateX(-50%);
	z-index: 11;
	display: flex;
	align-items: center;
	gap: 4px;
	padding: 4px 12px;
	background: rgba(0, 5, 10, 0.85);
	border: 1px solid rgba(247, 138, 28, 0.3);
	border-radius: 4px;
	font-family: 'Consolas', 'Monaco', monospace;
	font-size: 11px;
	max-width: 70%;
	overflow: hidden;
}
#ontology_tree[data-theme="light"] .ontology_graph_tm_breadcrumb {
	background: rgba(255, 255, 255, 0.9);
	border-color: rgba(247, 138, 28, 0.3);
}
.ontology_graph_tm_crumb {
	color: #f78a1c;
	cursor: pointer;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	max-width: 120px;
}
.ontology_graph_tm_crumb:hover {
	text-decoration: underline;
}
.ontology_graph_tm_crumb.is_current {
	color: #ffffff;
	cursor: default;
	font-weight: 600;
}
#ontology_tree[data-theme="light"] .ontology_graph_tm_crumb.is_current {
	color: #333333;
}
.ontology_graph_tm_sep {
	color: rgba(247, 138, 28, 0.5);
	margin: 0 2px;
}

/* ── Fullscreen state (CSS-only, fills viewport) ── */
#ontology_tree.is_fullscreen {
	position: fixed;
	top: 0;
	left: 0;
	width: 100vw;
	height: 100vh;
	z-index: 9999;
	background: #000000;
}
#ontology_tree[data-theme="light"].is_fullscreen {
	background: #f5f5f5;
}

/* ── Button tooltips (CSS-only, instant) ── */
.ontology_graph_theme_toggle[data-tooltip],
.ontology_graph_reset_btn[data-tooltip],
.ontology_graph_fullscreen_btn[data-tooltip],
.ontology_graph_relations_btn[data-tooltip],
.ontology_graph_virtual_btn[data-tooltip],
.ontology_graph_fit_btn[data-tooltip],
.ontology_graph_showall_btn[data-tooltip] {
	position: absolute;
}
.ontology_graph_theme_toggle[data-tooltip]::after,
.ontology_graph_reset_btn[data-tooltip]::after,
.ontology_graph_fullscreen_btn[data-tooltip]::after,
.ontology_graph_relations_btn[data-tooltip]::after,
.ontology_graph_virtual_btn[data-tooltip]::after,
.ontology_graph_fit_btn[data-tooltip]::after,
.ontology_graph_showall_btn[data-tooltip]::after,
.ontology_graph_zoom_in_btn[data-tooltip]::after,
.ontology_graph_zoom_out_btn[data-tooltip]::after {
	content: attr(data-tooltip);
	position: absolute;
	top: 100%;
	right: 50%;
	transform: translateX(50%) translateY(6px);
	white-space: nowrap;
	padding: 4px 10px;
	border: 1px solid rgba(247, 138, 28, 0.4);
	border-radius: 3px;
	background: rgba(0, 5, 10, 0.92);
	color: #f78a1c;
	font-size: 0.68rem;
	font-family: 'Consolas', 'Monaco', monospace;
	letter-spacing: 0.04em;
	pointer-events: none;
	opacity: 0;
	transition: opacity 0.15s ease;
	z-index: 12;
}
.ontology_graph_theme_toggle[data-tooltip]:hover::after,
.ontology_graph_reset_btn[data-tooltip]:hover::after,
.ontology_graph_fullscreen_btn[data-tooltip]:hover::after,
.ontology_graph_relations_btn[data-tooltip]:hover::after,
.ontology_graph_virtual_btn[data-tooltip]:hover::after,
.ontology_graph_fit_btn[data-tooltip]:hover::after,
.ontology_graph_showall_btn[data-tooltip]:hover::after,
.ontology_graph_zoom_in_btn[data-tooltip]:hover::after,
.ontology_graph_zoom_out_btn[data-tooltip]:hover::after {
	opacity: 1;
}
/* Show-all button tooltip appears to the right (button is at bottom-left) */
.ontology_graph_showall_btn[data-tooltip]::after {
	top: 50%;
	bottom: auto;
	right: auto;
	left: 100%;
	transform: translateY(-50%) translateX(6px);
}
/* Zoom buttons tooltip appears below (buttons are at top-right) */
.ontology_graph_zoom_in_btn[data-tooltip]::after,
.ontology_graph_zoom_out_btn[data-tooltip]::after {
	top: 100%;
	bottom: auto;
	right: 50%;
	left: auto;
	transform: translateX(50%) translateY(6px);
}
#ontology_tree[data-theme="light"] .ontology_graph_theme_toggle[data-tooltip]::after,
#ontology_tree[data-theme="light"] .ontology_graph_reset_btn[data-tooltip]::after,
#ontology_tree[data-theme="light"] .ontology_graph_fullscreen_btn[data-tooltip]::after,
#ontology_tree[data-theme="light"] .ontology_graph_relations_btn[data-tooltip]::after,
#ontology_tree[data-theme="light"] .ontology_graph_virtual_btn[data-tooltip]::after,
#ontology_tree[data-theme="light"] .ontology_graph_fit_btn[data-tooltip]::after,
#ontology_tree[data-theme="light"] .ontology_graph_showall_btn[data-tooltip]::after,
#ontology_tree[data-theme="light"] .ontology_graph_zoom_in_btn[data-tooltip]::after,
#ontology_tree[data-theme="light"] .ontology_graph_zoom_out_btn[data-tooltip]::after {
	background: #ffffff;
	border-color: #e6e6e6;
	color: #63686d;
}

/* ── Search box ── */
.ontology_graph_search {
	position: absolute;
	top: 12px;
	left: 50px;
	z-index: 11;
	width: 240px;
}

.ontology_graph_search_input {
	width: 100%;
	height: 32px;
	padding: 0 10px;
	border: 1.5px solid rgba(247, 138, 28, 0.5);
	border-radius: 4px;
	background: transparent;
	outline: none;
	font-family: 'Consolas', 'Monaco', 'Andale Mono', monospace;
	font-size: 13px;
	color: #f78a1c;
	transition: border-color 0.2s ease, background 0.2s ease;
}
.ontology_graph_search_input::placeholder {
	color: rgba(247, 138, 28, 0.4);
}
.ontology_graph_search_input:focus {
	border-color: #f78a1c;
	background: rgba(247, 138, 28, 0.08);
}

#ontology_tree[data-theme="light"] .ontology_graph_search_input {
	color: #1e1e1e;
	border-color: rgba(247, 138, 28, 0.4);
}
#ontology_tree[data-theme="light"] .ontology_graph_search_input::placeholder {
	color: #bcbcbc;
}
#ontology_tree[data-theme="light"] .ontology_graph_search_input:focus {
	border-color: #f78a1c;
	background: rgba(247, 138, 28, 0.05);
}

/* Search results dropdown */
.ontology_graph_search_results {
	display: none;
	margin-top: 4px;
	border: 1px solid rgba(247, 138, 28, 0.4);
	border-radius: 4px;
	min-width: 100%;
	width: max-content;
	max-width: 600px;
}
.ontology_graph_search_results.is_open {
	display: block;
}

#ontology_tree[data-theme="dark"] .ontology_graph_search_results {
	background: rgba(0, 5, 10, 0.95);
}
#ontology_tree[data-theme="light"] .ontology_graph_search_results {
	background: #ffffff;
	box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}

.ontology_graph_search_result {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 7px 10px;
	cursor: pointer;
	transition: background 0.15s ease;
	white-space: nowrap;
}
.ontology_graph_search_result:hover,
.ontology_graph_search_result.is_selected {
	background: rgba(247, 138, 28, 0.15);
}

.ontology_graph_search_result_term {
	font-family: 'Consolas', 'Monaco', monospace;
	font-size: 12px;
	color: #f78a1c;
	white-space: nowrap;
	overflow: visible;
}
#ontology_tree[data-theme="light"] .ontology_graph_search_result_term {
	color: #1e1e1e;
}
.ontology_graph_search_result:hover .ontology_graph_search_result_term,
.ontology_graph_search_result.is_selected .ontology_graph_search_result_term {
	color: #ffffff;
}
#ontology_tree[data-theme="light"] .ontology_graph_search_result:hover .ontology_graph_search_result_term,
#ontology_tree[data-theme="light"] .ontology_graph_search_result.is_selected .ontology_graph_search_result_term {
	color: #f78a1c;
}

.ontology_graph_search_result_id {
	font-family: 'Consolas', 'Monaco', monospace;
	font-size: 10px;
	color: rgba(247, 138, 28, 0.4);
}
#ontology_tree[data-theme="light"] .ontology_graph_search_result_id {
	color: #bcbcbc;
}

.ontology_graph_search_result_meta {
	display: flex;
	gap: 6px;
	align-items: center;
	flex-shrink: 0;
	white-space: nowrap;
}

.ontology_graph_search_result_model {
	font-family: 'Consolas', 'Monaco', monospace;
	font-size: 10px;
	color: rgba(247, 138, 28, 0.55);
	font-style: italic;
}
#ontology_tree[data-theme="light"] .ontology_graph_search_result_model {
	color: #999999;
}

.ontology_graph_search_noresult {
	padding: 10px;
	font-family: 'Consolas', 'Monaco', monospace;
	font-size: 12px;
	color: rgba(247, 138, 28, 0.4);
	text-align: center;
}
#ontology_tree[data-theme="light"] .ontology_graph_search_noresult {
	color: #bcbcbc;
}

/* SVG */
.ontology_graph_svg {
	display: block;
	width: 100%;
	height: 100%;
	cursor: grab;
	touch-action: none;
	font-family: 'Consolas', 'Monaco', 'Andale Mono', monospace;
	position: relative;
	z-index: 2;
}
.ontology_graph_svg:active {
	cursor: grabbing;
}

/* Background dot grid */
#ontology_tree[data-theme="dark"] .ontology_graph_grid_dot {
	fill: rgba(247, 138, 28, 0.08);
}
#ontology_tree[data-theme="light"] .ontology_graph_grid_dot {
	display: none;
}

/* ── Edges ── */
#ontology_tree[data-theme="dark"] .ontology_graph_link {
	fill: none;
	stroke: rgba(247, 138, 28, 0.35);
	stroke-width: 1px;
	stroke-opacity: 1;
	transition: stroke 0.2s ease, stroke-width 0.2s ease;
}
#ontology_tree[data-theme="light"] .ontology_graph_link {
	fill: none;
	stroke: rgba(247, 138, 28, 0.3);
	stroke-width: 1.2px;
	stroke-opacity: 1;
	transition: stroke 0.2s ease, stroke-width 0.2s ease;
}
.ontology_graph_link.is_highlighted {
	stroke: #f78a1c;
	stroke-width: 2px;
}
.ontology_graph_link.is_dimmed {
	stroke-opacity: 0.1;
}

/* ── Relation edges (non-hierarchical, dashed) ── */
#ontology_tree[data-theme="dark"] .ontology_graph_link.is_relation {
	stroke: rgba(247, 138, 28, 0.2);
	stroke-width: 0.8px;
	stroke-dasharray: 4 3;
}
#ontology_tree[data-theme="light"] .ontology_graph_link.is_relation {
	stroke: rgba(247, 138, 28, 0.18);
	stroke-width: 0.9px;
	stroke-dasharray: 4 3;
}
.ontology_graph_link.is_relation.is_highlighted {
	stroke: #f78a1c;
	stroke-width: 1.5px;
	stroke-opacity: 0.8;
}
.ontology_graph_link.is_relation.is_dimmed {
	stroke-opacity: 0.05;
}

/* ── Virtual section edges (inherited children, dotted) ── */
#ontology_tree[data-theme="dark"] .ontology_graph_link.is_virtual {
	stroke: rgba(247, 138, 28, 0.35);
	stroke-width: 1px;
	stroke-dasharray: 1.5 3;
}
#ontology_tree[data-theme="light"] .ontology_graph_link.is_virtual {
	stroke: rgba(247, 138, 28, 0.3);
	stroke-width: 1.1px;
	stroke-dasharray: 1.5 3;
}
.ontology_graph_link.is_virtual.is_highlighted {
	stroke: #f78a1c;
	stroke-width: 1.5px;
	stroke-opacity: 0.85;
}
.ontology_graph_link.is_virtual.is_dimmed {
	stroke-opacity: 0.05;
}

/* ── Nodes ── */
.ontology_graph_node {
	cursor: pointer;
	transition: opacity 0.2s ease;
}
.ontology_graph_node.is_dimmed {
	opacity: 0.15;
}
.ontology_graph_node.is_highlighted {
	opacity: 1;
}

/* Leaf nodes */
.ontology_graph_node.is_leaf {
	cursor: pointer;
}
.ontology_graph_node.is_leaf .ontology_graph_circle {
	stroke-dasharray: 3 2;
}
#ontology_tree[data-theme="dark"] .ontology_graph_node.is_leaf:hover .ontology_graph_circle {
	stroke: #ffffff !important;
	fill: rgba(247, 138, 28, 0.25);
}
#ontology_tree[data-theme="light"] .ontology_graph_node.is_leaf:hover .ontology_graph_circle {
	stroke: #f78a1c !important;
	fill: rgba(247, 138, 28, 0.15);
}

/* Focused node (from search) — highlighted with a bright ring */
.ontology_graph_node.is_focused .ontology_graph_circle {
	stroke: #ffffff !important;
	stroke-width: 3px !important;
	fill: rgba(247, 138, 28, 0.3) !important;
}
#ontology_tree[data-theme="light"] .ontology_graph_node.is_focused .ontology_graph_circle {
	stroke: #f78a1c !important;
	stroke-width: 3px !important;
	fill: rgba(247, 138, 28, 0.2) !important;
}
.ontology_graph_node.is_focused .ontology_graph_label {
	fill: #ffffff;
	font-weight: 600;
}
#ontology_tree[data-theme="light"] .ontology_graph_node.is_focused .ontology_graph_label {
	fill: #f78a1c;
	font-weight: 600;
}
.ontology_graph_node.is_focused .ontology_graph_core {
	fill: #ffffff !important;
}
#ontology_tree[data-theme="light"] .ontology_graph_node.is_focused .ontology_graph_core {
	fill: #f78a1c !important;
}

/* Expandable ring */
.ontology_graph_pulse_ring {
	fill: none;
	stroke: rgba(247, 138, 28, 0.4);
	stroke-width: 1px;
	opacity: 0;
}
.ontology_graph_pulse_ring.is_expandable {
	opacity: 1;
}

/* Root halo */
.ontology_graph_halo {
	fill: none;
	stroke: rgba(247, 138, 28, 0.3);
	stroke-width: 1px;
	opacity: 0;
}
.ontology_graph_halo.is_root {
	opacity: 1;
}

/* Invisible hit area — extends hover zone to cover the link icon */
.ontology_graph_hit_area {
	fill: transparent;
	stroke: none;
	pointer-events: all;
}

/* Main node circle */
#ontology_tree[data-theme="dark"] .ontology_graph_circle {
	stroke-width: 1.5px;
	fill: rgba(0, 10, 20, 0.9);
	transition: stroke-width 0.15s ease, fill 0.15s ease;
}
#ontology_tree[data-theme="light"] .ontology_graph_circle {
	stroke-width: 2px;
	fill: rgba(255, 255, 255, 0.85);
	transition: stroke-width 0.15s ease, fill 0.15s ease;
}
#ontology_tree[data-theme="dark"] .ontology_graph_node:hover .ontology_graph_circle {
	stroke-width: 2.5px;
	stroke: #ffffff !important;
	fill: rgba(247, 138, 28, 0.15);
}
#ontology_tree[data-theme="light"] .ontology_graph_node:hover .ontology_graph_circle {
	stroke-width: 3px;
	stroke: #f78a1c !important;
}

/* Inner core */
.ontology_graph_core {
	opacity: 0.9;
}
#ontology_tree[data-theme="light"] .ontology_graph_core {
	opacity: 0.85;
}

/* Expand indicator */
#ontology_tree[data-theme="dark"] .ontology_graph_expand_icon {
	font-size: 11px;
	font-weight: 700;
	fill: #f78a1c;
	pointer-events: none;
	user-select: none;
}
#ontology_tree[data-theme="light"] .ontology_graph_expand_icon {
	font-size: 11px;
	font-weight: 700;
	fill: #ffffff;
	pointer-events: none;
	user-select: none;
}

/* Children count badge */
.ontology_graph_badge_bg {
	fill: rgba(247, 138, 28, 0.85);
	stroke: rgba(255, 255, 255, 0.2);
	stroke-width: 1px;
}
#ontology_tree[data-theme="light"] .ontology_graph_badge_bg {
	stroke: rgba(255, 255, 255, 0.6);
}
.ontology_graph_badge_text {
	font-size: 9px;
	font-weight: 700;
	fill: #ffffff;
	pointer-events: none;
	user-select: none;
	font-family: 'Consolas', 'Monaco', monospace;
}

/* Open-page link icon (bottom-right of node, shown on hover) */
.ontology_graph_link_icon {
	cursor: pointer;
	opacity: 0;
	transition: opacity 0.15s ease;
	pointer-events: none;
}
.ontology_graph_node:hover .ontology_graph_link_icon {
	opacity: 1;
	pointer-events: auto;
}
.ontology_graph_link_icon_bg {
	fill: rgba(0, 5, 10, 0.9);
	stroke: #f78a1c;
	stroke-width: 1.5px;
	transition: fill 0.15s ease;
}
#ontology_tree[data-theme="light"] .ontology_graph_link_icon_bg {
	fill: rgba(255, 255, 255, 0.95);
	stroke: #f78a1c;
}
.ontology_graph_link_icon:hover .ontology_graph_link_icon_bg {
	fill: #f78a1c;
}
#ontology_tree[data-theme="light"] .ontology_graph_link_icon:hover .ontology_graph_link_icon_bg {
	fill: #f78a1c;
}
.ontology_graph_link_icon_text {
	font-size: 10px;
	font-weight: 700;
	fill: #f78a1c;
	pointer-events: none;
	user-select: none;
	transition: fill 0.15s ease;
}
.ontology_graph_link_icon:hover .ontology_graph_link_icon_text {
	fill: #ffffff;
}
#ontology_tree[data-theme="light"] .ontology_graph_link_icon:hover .ontology_graph_link_icon_text {
	fill: #ffffff;
}

/* Labels */
.ontology_graph_label {
	font-size: 10px;
	font-weight: 400;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	pointer-events: none;
	user-select: none;
	transition: fill 0.15s ease;
}
#ontology_tree[data-theme="dark"] .ontology_graph_label {
	fill: #f78a1c;
}
#ontology_tree[data-theme="light"] .ontology_graph_label {
	fill: #1e1e1e;
	text-transform: none;
	letter-spacing: 0.01em;
	font-size: 12px;
	font-weight: 400;
}
#ontology_tree[data-theme="dark"] .ontology_graph_node:hover .ontology_graph_label {
	fill: #ffffff;
}
#ontology_tree[data-theme="light"] .ontology_graph_node:hover .ontology_graph_label {
	fill: #f78a1c;
	font-weight: 500;
}

/* Model label — shown above node on hover, light grey */
.ontology_graph_model_label {
	font-size: 9px;
	font-weight: 400;
	font-family: 'Consolas', 'Monaco', 'Andale Mono', monospace;
	letter-spacing: 0.04em;
	pointer-events: none;
	user-select: none;
	opacity: 0;
	transition: opacity 0.2s ease;
}
#ontology_tree[data-theme="dark"] .ontology_graph_model_label {
	fill: #bcbcbc;
}
#ontology_tree[data-theme="light"] .ontology_graph_model_label {
	fill: #999999;
}
.ontology_graph_node:hover .ontology_graph_model_label {
	opacity: 1;
}

/* State classes */
.ontology_graph_node.is_expanded .ontology_graph_circle {
	stroke: #f7a93c !important;
	stroke-width: 2px;
	fill: rgba(247, 138, 28, 0.15);
}
.ontology_graph_node.is_expanded .ontology_graph_core {
	fill: #f7a93c !important;
}
.ontology_graph_node.is_expanded .ontology_graph_pulse_ring {
	opacity: 0;
}

/* Empty state */
#ontology_tree[data-theme="dark"] .ontology_graph_empty {
	font-size: 13px;
	font-weight: 300;
	fill: rgba(247, 138, 28, 0.4);
	letter-spacing: 0.1em;
	text-transform: uppercase;
}
#ontology_tree[data-theme="light"] .ontology_graph_empty {
	font-size: 16px;
	font-weight: 300;
	fill: #bcbcbc;
	letter-spacing: 0.04em;
}

/* Tooltip */
.ontology_graph_tooltip {
	position: fixed;
	z-index: 9999;
	max-width: 320px;
	padding: 0.8rem 1rem;
	border-radius: 0px;
	font-family: 'Consolas', 'Monaco', 'Andale Mono', monospace;
	font-size: 0.78rem;
	line-height: 1.5;
	pointer-events: none;
	display: none;
}
#ontology_tree[data-theme="dark"] ~ .ontology_graph_tooltip,
.ontology_graph_tooltip[data-theme="dark"] {
	background: rgba(0, 5, 10, 0.92);
	border: 1px solid rgba(247, 138, 28, 0.4);
	color: #f78a1c;
}
#ontology_tree[data-theme="light"] ~ .ontology_graph_tooltip,
.ontology_graph_tooltip[data-theme="light"] {
	background: #ffffff;
	border: 1px solid #e6e6e6;
	border-radius: 8px;
	color: #1e1e1e;
	box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}
.ontology_graph_tooltip_term {
	font-size: 0.95rem;
	font-weight: 600;
	margin-bottom: 0.35rem;
	overflow-wrap: break-word;
	word-break: break-word;
}
#ontology_tree[data-theme="dark"] ~ .ontology_graph_tooltip .ontology_graph_tooltip_term,
.ontology_graph_tooltip[data-theme="dark"] .ontology_graph_tooltip_term {
	color: #ffffff;
}
#ontology_tree[data-theme="light"] ~ .ontology_graph_tooltip .ontology_graph_tooltip_term,
.ontology_graph_tooltip[data-theme="light"] .ontology_graph_tooltip_term {
	color: #1a1a1a;
}
.ontology_graph_tooltip_meta {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
	align-items: center;
	margin-bottom: 0.4rem;
	font-size: 0.68rem;
}
.ontology_graph_tooltip_tld {
	text-transform: uppercase;
	letter-spacing: 0.1em;
	padding: 0.1rem 0.45rem;
	border: 1px solid rgba(247, 138, 28, 0.6);
	color: #f78a1c;
	font-weight: 600;
	background: rgba(247, 138, 28, 0.08);
}
.ontology_graph_tooltip_model {
	color: rgba(247, 138, 28, 0.6);
}
#ontology_tree[data-theme="light"] ~ .ontology_graph_tooltip .ontology_graph_tooltip_model,
.ontology_graph_tooltip[data-theme="light"] .ontology_graph_tooltip_model {
	color: #63686d;
}
.ontology_graph_tooltip_def {
	margin: 0.3rem 0 0.4rem;
	font-weight: 300;
	line-height: 1.5;
	overflow-wrap: break-word;
	word-break: break-word;
}
#ontology_tree[data-theme="dark"] ~ .ontology_graph_tooltip .ontology_graph_tooltip_def,
.ontology_graph_tooltip[data-theme="dark"] .ontology_graph_tooltip_def {
	color: rgba(180, 220, 230, 0.7);
}
#ontology_tree[data-theme="light"] ~ .ontology_graph_tooltip .ontology_graph_tooltip_def,
.ontology_graph_tooltip[data-theme="light"] .ontology_graph_tooltip_def {
	color: #63686d;
}
.ontology_graph_tooltip_term_id {
	color: rgba(247, 138, 28, 0.6);
	font-size: 0.7rem;
	letter-spacing: 0.08em;
}
#ontology_tree[data-theme="light"] ~ .ontology_graph_tooltip .ontology_graph_tooltip_term_id,
.ontology_graph_tooltip[data-theme="light"] .ontology_graph_tooltip_term_id {
	color: #63686d;
}
.ontology_graph_tooltip_relations {
	color: rgba(247, 138, 28, 0.5);
	font-size: 0.7rem;
	letter-spacing: 0.08em;
}
#ontology_tree[data-theme="light"] ~ .ontology_graph_tooltip .ontology_graph_tooltip_relations,
.ontology_graph_tooltip[data-theme="light"] .ontology_graph_tooltip_relations {
	color: #94989d;
}
.ontology_graph_tooltip_virtual {
	color: #f78a1c;
	font-size: 0.7rem;
	letter-spacing: 0.08em;
	font-style: italic;
}
#ontology_tree[data-theme="light"] ~ .ontology_graph_tooltip .ontology_graph_tooltip_virtual,
.ontology_graph_tooltip[data-theme="light"] .ontology_graph_tooltip_virtual {
	color: #b86c10;
}