/* Sheetzer Engineering workspace
   Progressive enhancement over the PaperGrapher editor. Legacy IDs remain
   available to the existing engine; this file only changes their presentation. */

body.engineer-mode {
	--eng-safe-top: env(safe-area-inset-top, 0px);
	--eng-safe-right: env(safe-area-inset-right, 0px);
	--eng-safe-bottom: env(safe-area-inset-bottom, 0px);
	--eng-safe-left: env(safe-area-inset-left, 0px);
	--eng-keyboard-inset: 0px;
	--eng-mobile-dock-h: 64px;
	--eng-bg: #090d11;
	--eng-model-bg: #212830;
	--eng-panel: #11171c;
	--eng-panel-raised: #171e24;
	--eng-panel-soft: #0e1418;
	--eng-border: #27313a;
	--eng-border-strong: #3a4650;
	--eng-text: #edf2f5;
	--eng-muted: #8e9aa4;
	--eng-soft-text: #b7c0c7;
	--eng-accent: #ff6337;
	--eng-accent-soft: rgba(255, 99, 55, .14);
	--eng-teal: #45c7b2;
	--eng-blue: #62b4f5;
	--eng-warning: #f5b942;
	--eng-danger: #ff6b71;
	--eng-docbar-h: 44px;
	--eng-ribbon-tabs-h: 29px;
	--eng-ribbon-tools-h: 72px;
	--eng-ribbon-h: 101px;
	--eng-left-w: 244px;
	--eng-right-w: 300px;
	--eng-command-h: 66px;
	--eng-model-h: 28px;
	--cnc-workspace-top: 145px;
	--cnc-workspace-left: 244px;
	--cnc-workspace-right: 300px;
	--cnc-workspace-bottom: 124px;
	background: var(--eng-bg);
	color: var(--eng-text);
	overscroll-behavior: none;
}

.eng-visually-hidden {
	position: absolute !important;
	width: 1px !important;
	height: 1px !important;
	padding: 0 !important;
	margin: -1px !important;
	overflow: hidden !important;
	clip: rect(0, 0, 0, 0) !important;
	white-space: nowrap !important;
	border: 0 !important;
}

.eng-mobile-only,
.eng-mobile-dock,
.eng-mobile-history,
.eng-mobile-sheet,
.eng-mobile-sheet-backdrop {
	display: none;
}

/* The header overflow trigger can remain visible when the desktop docbar is
   crowded. In that case the shared Workspace sheet becomes a compact popover. */
body.engineer-mode.engineer-desktop-more-open .eng-mobile-sheet-backdrop {
	position: fixed;
	z-index: 169;
	inset: 0;
	display: block;
	border: 0;
	background: transparent;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-sheet[hidden] {
	display: none;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-sheet {
	position: fixed;
	z-index: 175;
	top: calc(var(--eng-docbar-h) + 7px);
	right: 8px;
	bottom: auto;
	left: auto;
	width: min(430px, calc(100vw - 16px));
	max-height: calc(100vh - var(--eng-docbar-h) - 15px);
	display: flex;
	flex-direction: column;
	overflow: hidden;
	border: 1px solid var(--eng-border-strong);
	border-radius: 10px;
	background: rgba(17, 23, 28, .995);
	box-shadow: 0 20px 55px rgba(0, 0, 0, .5);
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-sheet-handle {
	display: none;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-sheet > header {
	min-height: 58px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 10px;
	padding: 7px 8px 7px 14px;
	border-bottom: 1px solid var(--eng-border);
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-sheet > header > span {
	min-width: 0;
	display: grid;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-sheet > header small {
	margin-top: 3px;
	color: var(--eng-muted);
	font-size: 10px;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-sheet > header button {
	width: 38px;
	height: 38px;
	border: 1px solid var(--eng-border);
	border-radius: 8px;
	background: var(--eng-panel-soft);
	color: var(--eng-text);
	font-size: 20px;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-sheet-items {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 7px;
	padding: 9px;
	overflow-y: auto;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-card {
	min-width: 0;
	min-height: 62px;
	display: grid;
	grid-template-columns: minmax(0, 1fr) 38px;
	overflow: hidden;
	border: 1px solid var(--eng-border);
	border-radius: 8px;
	background: var(--eng-panel-soft);
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-card.is-single {
	grid-template-columns: 1fr;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-main,
body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-methods {
	min-width: 0;
	min-height: 60px;
	border: 0;
	background: transparent;
	color: var(--eng-text);
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-main {
	display: grid;
	grid-template-columns: 32px minmax(0, 1fr);
	align-items: center;
	gap: 7px;
	padding: 7px 8px;
	text-align: left;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-main > i {
	display: grid;
	place-items: center;
	width: 30px;
	height: 30px;
	border-radius: 7px;
	background: rgba(69, 199, 178, .09);
	color: var(--eng-teal);
	font: normal 16px/1 "Segoe UI Symbol", Consolas, monospace;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-main > span {
	min-width: 0;
	display: grid;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-main small {
	margin-top: 2px;
	overflow: hidden;
	color: var(--eng-muted);
	font-size: 9px;
	text-overflow: ellipsis;
	white-space: nowrap;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-methods {
	border-left: 1px solid var(--eng-border);
	font-size: 18px;
}

body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-main:hover,
body.engineer-mode.engineer-desktop-more-open .eng-mobile-tool-methods:hover {
	background: var(--eng-accent-soft);
	color: var(--eng-accent);
}

body.engineer-mode #sketcutCanvas {
	touch-action: none;
	overscroll-behavior: contain;
	-webkit-touch-callout: none;
	-webkit-user-select: none;
	user-select: none;
}

.eng-workspace button,
.eng-workspace a,
.eng-workspace input,
.eng-workspace select {
	touch-action: manipulation;
}

.eng-panel-backdrop,
.eng-mobile-sheet-backdrop,
.eng-mobile-sheet-handle,
.eng-mobile-sheet > header {
	touch-action: none;
	overscroll-behavior: none;
}

.eng-tool-family-items,
.eng-panel-section.is-grow,
.eng-inspector-content,
.eng-mobile-sheet-items,
.eng-command-reference-body,
body.engineer-mode .toolOptionPanel .options {
	touch-action: pan-y;
	overscroll-behavior: contain;
}

body.engineer-mode.engineer-left-collapsed {
	--cnc-workspace-left: 0px;
}

body.engineer-mode.engineer-right-collapsed {
	--cnc-workspace-right: 0px;
}

body.engineer-mode.engineer-clean-screen .eng-ribbon,
body.engineer-mode.engineer-clean-screen .eng-panel,
body.engineer-mode.engineer-clean-screen .eng-panel-backdrop,
body.engineer-mode.engineer-clean-screen .eng-navigation-widget,
body.engineer-mode.engineer-clean-screen .eng-ucs-indicator {
	display: none !important;
}

body.engineer-mode.engineer-clean-screen .eng-docbar {
	box-shadow: 0 3px 18px rgba(0, 0, 0, .38);
}

.engineer-restore-ui {
	align-items:center;
	background:#ff5a2f;
	border:1px solid #ff8a69;
	border-radius:10px;
	box-shadow:0 12px 32px rgba(0,0,0,.38);
	color:#fff;
	cursor:pointer;
	display:flex;
	gap:7px;
	padding:9px 12px;
	position:fixed;
	right:14px;
	top:58px;
	z-index:180;
}
.engineer-restore-ui[hidden] { display:none!important; }
.engineer-restore-ui strong { font-size:11px; }
.engineer-restore-ui small {
	background:rgba(0,0,0,.2);
	border-radius:4px;
	font-size:8px;
	padding:2px 4px;
}
body:not(.engineer-mode) .engineer-restore-ui { display:none!important; }

@media (max-width: 760px) {
	.engineer-restore-ui {
		right:8px;
		top:calc(58px + env(safe-area-inset-top, 0px));
	}
}

.eng-workspace {
	display: none;
	font-family: Montserrat, "Segoe UI", sans-serif;
	color: var(--eng-text);
}

body.engineer-mode .eng-workspace {
	display: block;
}

.eng-workspace button,
.eng-workspace input {
	font: inherit;
}

.eng-workspace button {
	color: inherit;
}

.eng-workspace button:focus-visible,
.eng-workspace input:focus-visible,
.eng-workspace [tabindex]:focus-visible {
	outline: 2px solid var(--eng-accent);
	outline-offset: 2px;
}

.eng-docbar {
	position: fixed;
	z-index: 92;
	top: 0;
	right: 0;
	left: 0;
	height: var(--eng-docbar-h);
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 0 10px;
	background: #0d1216;
	border-bottom: 1px solid var(--eng-border);
	box-shadow: 0 3px 12px rgba(0, 0, 0, .22);
}

body.engineer-mode .eng-docbar .eng-persona-switch {
	flex: 0 0 auto;
	border-color: var(--eng-border);
	border-radius: 5px;
	background: #090e12;
}

body.engineer-mode .eng-docbar .eng-persona-switch button {
	height: 26px;
	padding: 0 8px;
	border-radius: 3px;
	background: transparent !important;
	color: var(--eng-muted) !important;
	box-shadow: none !important;
}

body.engineer-mode .eng-docbar .eng-persona-switch button:hover {
	background: var(--eng-panel-raised) !important;
	color: var(--eng-text) !important;
}

body.engineer-mode .eng-docbar .eng-persona-switch button.is-active,
body.engineer-mode .eng-docbar .eng-persona-switch button[aria-pressed="true"] {
	background: var(--eng-accent-soft) !important;
	color: var(--eng-text) !important;
	box-shadow: inset 0 0 0 1px rgba(255, 99, 55, .46) !important;
}

body.engineer-mode .eng-docbar .eng-persona-switch button > span {
	display: none;
}

.eng-brand {
	display: flex;
	align-items: center;
	gap: 9px;
	min-width: 184px;
	white-space: nowrap;
}

.eng-brand img {
	width: 27px;
	height: 27px;
	padding: 3px;
	border: 1px solid rgba(255, 99, 55, .34);
	border-radius: 7px;
	background: rgba(255, 99, 55, .08);
}

.eng-brand-copy {
	display: grid;
	line-height: 1.05;
}

.eng-brand-copy strong {
	font-size: 12px;
	letter-spacing: .12em;
}

.eng-brand-copy span {
	margin-top: 3px;
	color: var(--eng-accent);
	font-size: 9px;
	font-weight: 700;
	letter-spacing: .16em;
	text-transform: uppercase;
}

.eng-back-link {
	height: 26px;
	display: inline-flex;
	align-items: center;
	padding: 0 7px;
	border: 1px solid transparent;
	border-radius: 5px;
	color: var(--eng-muted);
	font-size: 9.5px;
	font-weight: 600;
	text-decoration: none;
	white-space: nowrap;
}

.eng-back-link:hover {
	border-color: var(--eng-border);
	background: var(--eng-panel-raised);
	color: var(--eng-text);
	text-decoration: none;
}

.eng-quick-access {
	display: flex;
	align-items: center;
	gap: 2px;
	height: 28px;
	padding: 0 5px;
	border: 1px solid var(--eng-border);
	border-radius: 5px;
	background: #090e12;
}

.eng-quick-access > span {
	width: 1px;
	height: 17px;
	margin: 0 3px;
	background: var(--eng-border);
}

.eng-quick-access button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 25px;
	height: 24px;
	padding: 0;
	border: 1px solid transparent;
	border-radius: 4px;
	background: transparent;
	color: var(--eng-muted);
	cursor: pointer;
}

.eng-quick-access button:hover {
	border-color: var(--eng-border-strong);
	background: var(--eng-panel-raised);
	color: var(--eng-text);
}

.eng-quick-access svg {
	width: 15px;
	height: 15px;
	fill: none;
	stroke: currentColor;
	stroke-width: 1.7;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.eng-doc-divider {
	width: 1px;
	height: 23px;
	background: var(--eng-border);
}

.eng-document {
	display: flex;
	align-items: center;
	gap: 8px;
	min-width: 0;
}

.eng-document strong {
	max-width: 230px;
	overflow: hidden;
	color: var(--eng-text);
	font-size: 12px;
	font-weight: 600;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.eng-document-badge {
	padding: 3px 6px;
	border: 1px solid var(--eng-border);
	border-radius: 4px;
	color: var(--eng-muted);
	font: 700 8px/1 Consolas, "Courier New", monospace;
	letter-spacing: .08em;
}

.eng-file-actions,
.eng-window-actions {
	display: flex;
	align-items: center;
	gap: 4px;
}

.eng-file-actions {
	margin-left: auto;
}

.eng-window-actions {
	padding-left: 8px;
	border-left: 1px solid var(--eng-border);
}

.eng-top-button,
.eng-icon-button {
	height: 28px;
	border: 1px solid transparent;
	border-radius: 5px;
	background: transparent;
	color: var(--eng-soft-text);
	cursor: pointer;
	transition: color .12s ease, background .12s ease, border-color .12s ease;
}

.eng-top-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 5px;
	padding: 0 9px;
	font-size: 10.5px;
	font-weight: 600;
	white-space: nowrap;
}

.eng-top-button svg {
	flex: 0 0 auto;
	width: 14px;
	height: 14px;
	fill: none;
	stroke: currentColor;
	stroke-width: 1.8;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.eng-icon-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 30px;
	padding: 0;
	font: 700 10px/1 Consolas, "Courier New", monospace;
}

.eng-top-button:hover,
.eng-icon-button:hover,
.eng-icon-button.is-active {
	border-color: var(--eng-border-strong);
	background: var(--eng-panel-raised);
	color: #fff;
}

.eng-top-button.is-primary {
	border-color: var(--eng-accent);
	background: var(--eng-accent);
	color: #0c0f12;
}

.eng-top-button.is-primary:hover {
	background: #ff7953;
}

.eng-save-state {
	display: inline-flex;
	align-items: center;
	gap: 5px;
	min-width: 78px;
	margin: 0 5px;
	color: var(--eng-muted);
	font-size: 9.5px;
	white-space: nowrap;
}

.eng-save-state::before {
	width: 6px;
	height: 6px;
	border-radius: 50%;
	background: var(--eng-muted);
	content: "";
}

.eng-save-state[data-state="saved"]::before {
	background: var(--eng-teal);
	box-shadow: 0 0 0 3px rgba(69, 199, 178, .1);
}

.eng-save-state[data-state="dirty"]::before {
	background: var(--eng-accent);
	box-shadow: 0 0 0 3px rgba(255, 99, 55, .1);
}

.eng-save-state[data-state="busy"]::before {
	background: var(--eng-warning);
	box-shadow: 0 0 0 3px rgba(245, 185, 66, .12);
}

.eng-save-state[data-state="warning"]::before {
	background: var(--eng-danger);
}

#engineerCollaborationMount {
	display: flex;
	align-items: center;
}

body.engineer-mode #sketchCollaborationToggle {
	float: none !important;
	display: flex;
	align-items: center;
	gap: 5px;
	height: 28px;
	padding: 0 8px;
	border: 1px solid transparent;
	border-radius: 5px;
	color: var(--eng-soft-text);
	font-size: 9.5px;
}

body.engineer-mode #sketchCollaborationToggle:hover {
	border-color: var(--eng-border-strong);
	background: var(--eng-panel-raised);
}

.eng-ribbon {
	position: fixed;
	z-index: 90;
	top: var(--eng-docbar-h);
	right: 0;
	left: 0;
	height: var(--eng-ribbon-h);
	display: grid;
	grid-template-rows: var(--eng-ribbon-tabs-h) var(--eng-ribbon-tools-h);
	overflow: hidden;
	background: var(--eng-panel);
	border-bottom: 1px solid var(--eng-border);
	box-shadow: 0 5px 16px rgba(0, 0, 0, .16);
}

.eng-ribbon-tabs {
	display: flex;
	align-items: stretch;
	gap: 1px;
	min-width: 0;
	padding: 0 8px;
	background: #0d1317;
	border-bottom: 1px solid var(--eng-border);
}

.eng-ribbon-tabs > button:not(.eng-layer-control) {
	position: relative;
	min-width: 58px;
	height: 100%;
	padding: 0 13px;
	border: 0;
	background: transparent;
	color: var(--eng-muted);
	font-size: 10px;
	font-weight: 600;
	cursor: pointer;
}

.eng-ribbon-tabs > button:not(.eng-layer-control)::after {
	position: absolute;
	right: 11px;
	bottom: -1px;
	left: 11px;
	height: 2px;
	border-radius: 2px 2px 0 0;
	background: transparent;
	content: "";
}

.eng-ribbon-tabs > button:not(.eng-layer-control):hover,
.eng-ribbon-tabs > button:not(.eng-layer-control).is-active {
	background: var(--eng-panel-raised);
	color: var(--eng-text);
}

.eng-ribbon-tabs > button:not(.eng-layer-control).is-active::after {
	background: var(--eng-accent);
}

.eng-ribbon-tabs-spacer {
	flex: 1 1 auto;
	min-width: 10px;
}

.eng-layer-control {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	min-width: 132px;
	height: 24px;
	margin: 2px 0;
	padding: 0 7px;
	border: 1px solid var(--eng-border);
	border-radius: 3px;
	background: #10171c;
	color: var(--eng-soft-text);
	cursor: pointer;
}

.eng-layer-control:hover {
	border-color: var(--eng-border-strong);
	background: var(--eng-panel-raised);
}

.eng-layer-control > i {
	width: 12px;
	height: 12px;
	flex: 0 0 auto;
	border: 1px solid rgba(255, 255, 255, .3);
	border-radius: 2px;
	background: #f1f5f7;
}

.eng-layer-control > span,
.eng-workspace-label {
	display: grid;
	line-height: 1.05;
	text-align: left;
}

.eng-layer-control small,
.eng-workspace-label small {
	color: #697680;
	font-size: 7px;
	font-weight: 700;
	letter-spacing: .08em;
	text-transform: uppercase;
}

.eng-layer-control strong,
.eng-workspace-label strong {
	margin-top: 2px;
	color: var(--eng-text);
	font-size: 9px;
	font-weight: 600;
	white-space: nowrap;
}

.eng-layer-control > b {
	margin-left: auto;
	color: var(--eng-muted);
	font-size: 10px;
}

.eng-workspace-label {
	justify-content: center;
	min-width: 128px;
	padding: 0 9px;
	border-left: 1px solid var(--eng-border);
}

.eng-ribbon-groups {
	display: flex;
	align-items: stretch;
	gap: 2px;
	min-width: 0;
	padding: 6px 8px 5px;
	overflow-x: auto;
	overflow-y: hidden;
	scrollbar-color: var(--eng-border-strong) transparent;
	scrollbar-width: thin;
}

.eng-ribbon-group[hidden] {
	display: none !important;
}

.eng-navigation-widget {
	position: fixed;
	z-index: 60;
	top: calc(var(--cnc-workspace-top) + 12px);
	right: calc(var(--cnc-workspace-right) + 12px);
	display: grid;
	justify-items: center;
	gap: 7px;
	pointer-events: none;
	transition: right .18s ease;
}

.eng-navigation-widget button {
	pointer-events: auto;
}

.eng-view-cube {
	display: grid;
	justify-items: center;
	gap: 3px;
	width: 50px;
	padding: 0;
	border: 0;
	background: transparent;
	color: var(--eng-muted);
	cursor: pointer;
}

.eng-view-cube-face {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 40px;
	border: 1px solid #53616c;
	border-radius: 4px;
	background: linear-gradient(145deg, #26313a, #131b21 68%);
	box-shadow: inset -5px -5px 0 rgba(0, 0, 0, .14), 0 4px 12px rgba(0, 0, 0, .25);
	color: #dfe8ed;
	font: 700 9px/1 Consolas, monospace;
	letter-spacing: .08em;
}

.eng-view-cube:hover .eng-view-cube-face {
	border-color: var(--eng-blue);
	color: #fff;
}

.eng-view-cube small {
	color: #66737d;
	font: 700 7px/1 Consolas, monospace;
}

.eng-navigation-widget nav {
	display: grid;
	border: 1px solid var(--eng-border-strong);
	border-radius: 4px;
	overflow: hidden;
	background: rgba(13, 19, 23, .92);
	box-shadow: 0 7px 16px rgba(0, 0, 0, .28);
}

.eng-navigation-widget nav button {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 31px;
	height: 29px;
	padding: 0;
	border: 0;
	border-bottom: 1px solid var(--eng-border);
	background: transparent;
	color: var(--eng-muted);
	font: 600 14px/1 "Segoe UI Symbol", Consolas, monospace;
	cursor: pointer;
}

.eng-navigation-widget nav button:last-child {
	border-bottom: 0;
}

.eng-navigation-widget nav button:hover {
	background: var(--eng-panel-raised);
	color: var(--eng-text);
}

.engineer-right-collapsed .eng-navigation-widget {
	right: 12px;
}

.eng-ucs-indicator {
	position: fixed;
	z-index: 59;
	bottom: calc(var(--cnc-workspace-bottom) + var(--cnc-ruler-h) + 13px);
	left: calc(var(--cnc-workspace-left) + var(--cnc-ruler-w) + 13px);
	width: 52px;
	height: 52px;
	pointer-events: none;
	opacity: .88;
	filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .55));
	transition: left .18s ease;
}

.eng-ucs-indicator svg {
	display: block;
	width: 100%;
	height: 100%;
	overflow: visible;
}

.eng-ucs-indicator .eng-ucs-x {
	stroke: #b9585d;
}

.eng-ucs-indicator .eng-ucs-y {
	stroke: #45a078;
}

.eng-ucs-indicator .eng-ucs-origin {
	fill: var(--eng-model-bg);
	stroke: #dce6ed;
}

.eng-ucs-indicator text {
	fill: #dce6ed;
	font: 700 9px/1 Consolas, "Courier New", monospace;
	paint-order: stroke;
	stroke: var(--eng-model-bg);
	stroke-width: 2px;
}

.engineer-left-collapsed .eng-ucs-indicator {
	left: calc(var(--cnc-ruler-w) + 13px);
}

.eng-ribbon-group {
	position: relative;
	display: flex;
	flex: 0 0 auto;
	align-items: flex-start;
	gap: 2px;
	min-width: max-content;
	height: 60px;
	padding: 0 10px 12px;
	border-right: 1px solid var(--eng-border);
}

.eng-ribbon-group:last-child {
	border-right: 0;
}

.eng-ribbon-label {
	position: absolute;
	right: 10px;
	bottom: 0;
	left: 10px;
	overflow: hidden;
	color: #67747e;
	font-size: 8px;
	font-weight: 700;
	letter-spacing: .13em;
	text-align: center;
	text-overflow: ellipsis;
	text-transform: uppercase;
	white-space: nowrap;
}

.eng-tool {
	position: relative;
	display: grid;
	grid-template-rows: 28px 13px;
	align-items: center;
	justify-items: center;
	min-width: 50px;
	height: 46px;
	padding: 2px 5px 1px;
	border: 1px solid transparent;
	border-radius: 5px;
	background: transparent;
	color: var(--eng-soft-text);
	cursor: pointer;
}

.eng-tool:hover {
	border-color: var(--eng-border-strong);
	background: var(--eng-panel-raised);
	color: #fff;
}

.eng-tool.is-active {
	border-color: rgba(255, 99, 55, .58);
	background: var(--eng-accent-soft);
	color: var(--eng-accent);
}

.eng-tool:disabled,
.eng-tool.is-planned,
.eng-tool.is-readonly-blocked {
	opacity: .34;
	cursor: not-allowed;
}

.eng-tool.is-planned {
	display: none;
}

.eng-tool:disabled:hover,
.eng-tool.is-planned:hover,
.eng-tool.is-readonly-blocked:hover {
	border-color: transparent;
	background: transparent;
	color: var(--eng-soft-text);
}

.eng-top-button.is-readonly-blocked,
.eng-view-button.is-readonly-blocked,
.eng-check-button.is-readonly-blocked {
	opacity: .42;
	cursor: not-allowed;
}

.eng-tool-glyph {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 27px;
	height: 27px;
	border-radius: 5px;
	color: currentColor;
	font: 500 19px/1 "Segoe UI Symbol", Consolas, monospace;
}

.eng-tool > span:last-of-type {
	font-size: 9.5px;
	font-weight: 600;
	white-space: nowrap;
}

.eng-measure-group {
	min-width: max-content;
}

.eng-measure-readout {
	align-self: stretch;
	display: flex;
	flex-direction: column;
	justify-content: center;
	min-width: 220px;
	max-width: 320px;
	padding: 7px 12px;
	margin: 2px 4px 17px 6px;
	border: 1px solid rgba(98,230,210,.34);
	border-radius: 7px;
	background: rgba(98,230,210,.07);
	color: var(--eng-text);
}

.eng-measure-readout strong {
	color: #62e6d2;
	font-size: 12px;
}

.eng-measure-readout small {
	margin-top: 3px;
	color: var(--eng-muted);
	font-size: 10px;
	line-height: 1.3;
}

.eng-font-browser {
	position: fixed;
	top: 154px;
	left: 50%;
	z-index: 180;
	width: min(760px, calc(100vw - 32px));
	max-height: min(640px, calc(100vh - 190px));
	transform: translateX(-50%);
	overflow: hidden;
	border: 1px solid var(--eng-border);
	border-top: 2px solid var(--eng-accent);
	border-radius: 10px;
	background: #10171b;
	box-shadow: 0 18px 48px rgba(0,0,0,.55);
}

.eng-font-browser[hidden] { display: none; }
.eng-font-browser header,
.eng-font-browser-tools { display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-bottom:1px solid var(--eng-border); }
.eng-font-browser header div { display:flex;flex-direction:column;gap:2px; }
.eng-font-browser header small { color:var(--eng-accent);font-size:8px;font-weight:800;letter-spacing:.12em; }
.eng-font-browser header strong { font-size:15px; }
.eng-font-browser header button { width:30px;height:30px;border:1px solid var(--eng-border);border-radius:6px;background:#182126;color:var(--eng-text);font-size:20px; }
.eng-font-browser-tools input[type="search"] { flex:1;min-width:0;padding:9px 11px;border:1px solid var(--eng-border);border-radius:7px;background:#0c1215;color:var(--eng-text); }
.eng-font-import { position:relative;padding:9px 13px;border:1px solid var(--eng-accent);border-radius:7px;color:var(--eng-accent);font-size:10px;font-weight:800;cursor:pointer; }
.eng-font-import input { position:absolute;inset:0;opacity:0;cursor:pointer; }
.eng-font-grid { display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:9px;max-height:480px;overflow:auto;padding:12px; }
.eng-font-card { display:flex;flex-direction:column;gap:7px;min-height:82px;padding:10px;border:1px solid var(--eng-border);border-radius:8px;background:#141c20;color:var(--eng-text);text-align:left; }
.eng-font-card:hover,.eng-font-card:focus-visible,.eng-font-card[aria-selected="true"] { border-color:#62e6d2;background:rgba(98,230,210,.07);outline:none; }
.eng-font-card svg { width:100%;height:38px;overflow:visible; }
.eng-font-card path { fill:currentColor; }
.eng-font-card span { color:var(--eng-muted);font-size:9px; }
.eng-font-empty { padding:24px;text-align:center;color:var(--eng-muted);font-size:11px; }

.eng-text-composer {
	position: fixed;
	top: calc(var(--cnc-workspace-top) + 12px);
	left: calc(var(--cnc-workspace-left) + 18px);
	z-index: 175;
	width: min(650px, calc(100vw - var(--cnc-workspace-left) - var(--cnc-workspace-right) - 36px));
	padding: 12px;
	border: 1px solid #40505a;
	border-top: 2px solid var(--eng-accent);
	border-radius: 9px;
	background: rgba(13,20,24,.97);
	box-shadow: 0 14px 38px rgba(0,0,0,.48);
}
.eng-text-composer[hidden] { display:none; }
.eng-text-composer header,.eng-text-composer header span { display:flex;align-items:center;gap:9px; }
.eng-text-composer header { justify-content:space-between; }
.eng-text-composer header span { align-items:baseline; }
.eng-text-composer header small { color:var(--eng-accent);font-size:8px;font-weight:800;letter-spacing:.12em; }
.eng-text-composer header strong { color:var(--eng-text);font-size:13px; }
.eng-text-composer header button { border:0;background:transparent;color:var(--eng-muted);font-size:20px;cursor:pointer; }
.eng-text-composer p { margin:7px 0 10px;color:#9aa8b1;font-size:10px; }
.eng-text-composer-row { display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px; }
.eng-text-composer-row input,.eng-text-composer-row button { height:36px;border:1px solid #394751;border-radius:6px;background:#0a1013;color:var(--eng-text); }
.eng-text-composer-row input { min-width:0;padding:0 11px;font-size:13px; }
.eng-text-composer-row input[dir="rtl"] { text-align:right;font-family:"Tajawal","Segoe UI",Tahoma,sans-serif; }
.eng-text-composer-row input:focus { border-color:#62e6d2;outline:2px solid rgba(98,230,210,.15); }
.eng-text-composer-row button { padding:0 12px;font-size:10px;font-weight:800;cursor:pointer; }
.eng-text-composer-row [data-engineer-text-done] { border-color:var(--eng-accent);background:rgba(255,91,52,.14);color:#ff8b6b; }
.eng-text-options { display:grid;grid-template-columns:minmax(130px,1.3fr) minmax(100px,.85fr) minmax(100px,.8fr) minmax(85px,.65fr) minmax(100px,.75fr);gap:8px;margin-top:10px;padding-top:10px;border-top:1px solid #29363d; }
.eng-text-options label { display:flex;flex-direction:column;gap:5px;min-width:0;color:#93a2ab;font-size:8px;font-weight:800;letter-spacing:.08em;text-transform:uppercase; }
.eng-text-options select,.eng-text-options input { width:100%;height:34px;min-width:0;border:1px solid #394751;border-radius:6px;background:#0a1013;color:var(--eng-text);font-size:11px; }
.eng-text-options select { padding:0 28px 0 9px; }
.eng-text-options input { padding:0 47px 0 9px; }
.eng-text-options select:focus,.eng-text-options input:focus { border-color:#62e6d2;outline:2px solid rgba(98,230,210,.15); }
.eng-text-options select:disabled,.eng-text-options input:disabled { opacity:.48;cursor:not-allowed; }
.eng-text-number { position:relative;display:block; }
.eng-text-number em { position:absolute;top:50%;right:8px;transform:translateY(-50%);color:#70808a;font-size:8px;font-style:normal;font-weight:700;letter-spacing:0;text-transform:none;pointer-events:none; }
.eng-text-scale-note { margin-bottom:0 !important;padding:7px 9px;border:1px solid rgba(255,183,77,.22);border-radius:6px;background:rgba(255,183,77,.07);color:#e8ba70 !important; }
.eng-text-composer footer { display:flex;align-items:center;gap:7px;margin-top:10px; }
.eng-text-composer footer button { min-height:32px;padding:0 11px;border:1px solid #394751;border-radius:6px;background:#121a1e;color:#b8c4ca;font-size:9px;font-weight:800;cursor:pointer; }
.eng-text-composer footer button:hover,.eng-text-composer footer button:focus-visible { border-color:#62e6d2;color:#62e6d2;outline:none; }

@media (max-width: 820px) {
	.eng-text-options { grid-template-columns:repeat(2,minmax(0,1fr)); }
}

.eng-tool kbd {
	position: absolute;
	top: 1px;
	right: 2px;
	padding: 1px 2px;
	border: 0;
	border-radius: 2px;
	background: rgba(255, 255, 255, .05);
	color: #77838c;
	font: 700 7px/1 Consolas, monospace;
}

.eng-tool-split {
	position: relative;
	display: grid;
	grid-template-columns: minmax(45px, auto) 14px;
	height: 46px;
	border-radius: 5px;
}

.eng-tool-split .eng-tool {
	min-width: 45px;
	border-radius: 5px 0 0 5px;
}

.eng-tool-menu-toggle {
	position: relative;
	display: flex;
	align-items: flex-end;
	justify-content: center;
	width: 14px;
	height: 46px;
	padding: 0 0 5px;
	border: 1px solid transparent;
	border-left: 1px solid rgba(255, 255, 255, .045);
	border-radius: 0 5px 5px 0;
	background: transparent;
	color: #788690;
	font: 700 9px/1 Arial, sans-serif;
	cursor: pointer;
}

.eng-tool-split:hover .eng-tool-menu-toggle,
.eng-tool-menu-toggle:hover,
.eng-tool-menu-toggle[aria-expanded="true"] {
	border-color: var(--eng-border-strong);
	background: var(--eng-panel-raised);
	color: var(--eng-accent);
}

.eng-tool-split:hover .eng-tool {
	border-color: var(--eng-border-strong);
	background: var(--eng-panel-raised);
	color: #fff;
}

.eng-tool-split .eng-tool.is-active + .eng-tool-menu-toggle {
	border-color: rgba(255, 99, 55, .58);
	border-left-color: rgba(255, 99, 55, .25);
	background: var(--eng-accent-soft);
	color: var(--eng-accent);
}

.eng-tool-menu-toggle:focus-visible {
	z-index: 2;
	outline: 2px solid var(--eng-accent);
	outline-offset: 1px;
}

.eng-tool-family-menu {
	position: fixed;
	z-index: 120;
	width: min(380px, calc(100vw - 16px));
	max-height: min(620px, calc(100vh - 24px));
	overflow: hidden;
	border: 1px solid var(--eng-border-strong);
	border-radius: 9px;
	background: rgba(14, 20, 25, .99);
	color: var(--eng-text);
	box-shadow: 0 22px 58px rgba(0, 0, 0, .52);
}

.eng-tool-family-head {
	display: grid;
	grid-template-columns: 35px 1fr 28px;
	align-items: center;
	gap: 9px;
	min-height: 54px;
	padding: 7px 8px 7px 10px;
	border-bottom: 1px solid var(--eng-border);
	background: linear-gradient(135deg, rgba(255, 99, 55, .12), transparent 64%);
}

.eng-tool-family-head > span:nth-child(2) {
	display: grid;
	gap: 3px;
	min-width: 0;
}

.eng-tool-family-head strong {
	overflow: hidden;
	font-size: 11px;
	font-weight: 700;
	letter-spacing: .02em;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.eng-tool-family-head small {
	overflow: hidden;
	color: var(--eng-muted);
	font-size: 8.5px;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.eng-tool-family-mark {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 35px;
	height: 35px;
	border: 1px solid rgba(255, 99, 55, .35);
	border-radius: 7px;
	background: var(--eng-accent-soft);
	color: var(--eng-accent);
	font: 600 20px/1 "Segoe UI Symbol", Consolas, monospace;
}

.eng-tool-family-head button {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	padding: 0;
	border: 1px solid var(--eng-border);
	border-radius: 5px;
	background: var(--eng-panel-soft);
	color: var(--eng-muted);
	font-size: 16px;
	cursor: pointer;
}

.eng-tool-family-head button:hover {
	border-color: var(--eng-border-strong);
	color: #fff;
}

.eng-tool-family-items {
	display: grid;
	max-height: min(490px, calc(100vh - 138px));
	overflow-x: hidden;
	overflow-y: auto;
	padding: 6px;
	scrollbar-color: #45515a transparent;
	scrollbar-width: thin;
}

.eng-tool-family-item {
	display: grid;
	grid-template-columns: 35px minmax(0, 1fr) auto;
	align-items: center;
	gap: 9px;
	min-height: 52px;
	padding: 7px 8px;
	border: 1px solid transparent;
	border-radius: 6px;
	background: transparent;
	color: var(--eng-soft-text);
	text-align: left;
	cursor: pointer;
}

.eng-tool-family-item:hover,
.eng-tool-family-item:focus-visible {
	border-color: var(--eng-border-strong);
	outline: 0;
	background: var(--eng-panel-raised);
	color: #fff;
}

.eng-tool-family-item.is-current {
	border-color: rgba(255, 99, 55, .28);
	background: var(--eng-accent-soft);
}

.eng-tool-family-item:disabled {
	opacity: .43;
	cursor: not-allowed;
}

.eng-tool-family-item:disabled:hover {
	border-color: transparent;
	background: transparent;
	color: var(--eng-soft-text);
}

.eng-tool-family-icon {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 35px;
	height: 35px;
	border: 1px solid var(--eng-border);
	border-radius: 6px;
	background: #10171c;
	color: #6edbd7;
	font: 600 15px/1 "Segoe UI Symbol", Consolas, monospace;
}

.eng-tool-family-copy {
	display: grid;
	gap: 3px;
	min-width: 0;
}

.eng-tool-family-copy strong {
	overflow: hidden;
	font-size: 10px;
	font-weight: 700;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.eng-tool-family-copy small {
	overflow: hidden;
	color: var(--eng-muted);
	font-size: 8.5px;
	line-height: 1.35;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.eng-tool-family-state {
	padding: 3px 4px;
	border: 1px solid var(--eng-border);
	border-radius: 3px;
	color: #7a8790;
	font: 700 7px/1 Consolas, monospace;
	letter-spacing: .03em;
}

.eng-tool-family-item.is-current .eng-tool-family-state {
	border-color: rgba(255, 99, 55, .38);
	color: var(--eng-accent);
}

.eng-tool-family-menu footer {
	padding: 7px 10px;
	border-top: 1px solid var(--eng-border);
	background: #0f151a;
	color: #697680;
	font-size: 8px;
	line-height: 1.35;
}

.eng-panel {
	position: fixed;
	z-index: 82;
	top: var(--cnc-workspace-top);
	bottom: var(--cnc-status-h);
	display: flex;
	flex-direction: column;
	overflow: hidden;
	background: rgba(16, 22, 27, .98);
	border-color: var(--eng-border);
	box-shadow: 0 10px 30px rgba(0, 0, 0, .22);
	transition: transform .18s ease;
}

.eng-panel-backdrop {
	display: none;
}

.eng-panel-left {
	left: 0;
	width: var(--eng-left-w);
	border-right: 1px solid var(--eng-border);
}

.eng-panel-right {
	right: 0;
	width: var(--eng-right-w);
	border-left: 1px solid var(--eng-border);
}

.engineer-left-collapsed .eng-panel-left {
	transform: translateX(-100%);
}

.engineer-right-collapsed .eng-panel-right {
	transform: translateX(100%);
}

.eng-panel-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	min-height: 39px;
	padding: 0 12px;
	border-bottom: 1px solid var(--eng-border);
}

.eng-panel-header h2 {
	margin: 0;
	color: var(--eng-text);
	font-size: 11px;
	font-weight: 700;
	letter-spacing: .08em;
	text-transform: uppercase;
}

.eng-panel-header-actions {
	display: flex;
	align-items: center;
	gap: 6px;
}

.eng-panel-chip {
	padding: 3px 6px;
	border: 1px solid var(--eng-border);
	border-radius: 999px;
	color: var(--eng-muted);
	font: 700 8px/1 Consolas, monospace;
	text-transform: uppercase;
}

.eng-panel-close {
	display: none;
	align-items: center;
	justify-content: center;
	width: 27px;
	height: 27px;
	padding: 0;
	border: 1px solid var(--eng-border);
	border-radius: 5px;
	background: var(--eng-panel-soft);
	color: var(--eng-muted);
	font-size: 16px;
	line-height: 1;
	cursor: pointer;
}

.eng-panel-close:hover {
	border-color: var(--eng-border-strong);
	color: var(--eng-text);
}

.eng-panel-close-floating {
	position: absolute;
	z-index: 2;
	top: 6px;
	right: 7px;
}

.eng-panel-section {
	padding: 12px;
	border-bottom: 1px solid var(--eng-border);
}

.eng-panel-section.is-grow {
	flex: 1;
	overflow-y: auto;
}

.eng-section-heading {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin: 0 0 9px;
	color: #76838d;
	font-size: 9px;
	font-weight: 700;
	letter-spacing: .13em;
	text-transform: uppercase;
}

.eng-section-heading button {
	border: 0;
	background: transparent;
	color: var(--eng-muted);
	font-size: 9px;
	cursor: pointer;
}

.eng-section-heading button:disabled {
	opacity: .35;
	cursor: not-allowed;
}

.eng-layer-list {
	display: grid;
	gap: 3px;
}

.eng-layer-row {
	display: grid;
	grid-template-columns: 27px 1fr auto;
	align-items: center;
	gap: 7px;
	min-height: 38px;
	padding: 4px 7px;
	border: 1px solid transparent;
	border-radius: 5px;
	background: transparent;
}

.eng-layer-row.is-current {
	border-color: rgba(98, 180, 245, .24);
	background: rgba(98, 180, 245, .07);
}

.eng-layer-visibility {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 25px;
	height: 25px;
	padding: 0;
	border: 1px solid var(--eng-border);
	border-radius: 4px;
	background: var(--eng-panel-soft);
	color: var(--eng-blue);
	font: 700 10px/1 Consolas, monospace;
	cursor: pointer;
}

.eng-layer-visibility.is-muted {
	color: #59646d;
}

.eng-layer-copy {
	display: grid;
	min-width: 0;
}

.eng-layer-copy strong {
	overflow: hidden;
	color: var(--eng-soft-text);
	font-size: 10.5px;
	font-weight: 600;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.eng-layer-copy small {
	margin-top: 2px;
	color: #69757e;
	font-size: 9px;
}

.eng-layer-count {
	min-width: 22px;
	padding: 3px 5px;
	border-radius: 3px;
	background: var(--eng-panel-soft);
	color: var(--eng-muted);
	font: 700 9px/1 Consolas, monospace;
	text-align: center;
}

.eng-view-list {
	display: grid;
	gap: 4px;
}

.eng-view-button {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 31px;
	padding: 0 9px;
	border: 1px solid var(--eng-border);
	border-radius: 4px;
	background: var(--eng-panel-soft);
	color: var(--eng-soft-text);
	font-size: 9.5px;
	cursor: pointer;
}

.eng-view-button:hover,
.eng-view-button.is-active {
	border-color: var(--eng-border-strong);
	background: var(--eng-panel-raised);
	color: #fff;
}

.eng-view-button code {
	color: var(--eng-muted);
	font: 8.5px Consolas, monospace;
}

.eng-panel-note {
	margin: 0;
	padding: 9px 10px;
	border: 1px dashed var(--eng-border);
	border-radius: 5px;
	background: rgba(255, 255, 255, .015);
	color: #74808a;
	font-size: 9.5px;
	line-height: 1.45;
}

.eng-inspector-tabs {
	display: grid;
	grid-template-columns: 1fr 1fr;
	min-height: 39px;
	border-bottom: 1px solid var(--eng-border);
}

.eng-inspector-tabs button {
	position: relative;
	border: 0;
	background: transparent;
	color: var(--eng-muted);
	font-size: 9.5px;
	font-weight: 700;
	letter-spacing: .04em;
	cursor: pointer;
}

.eng-inspector-tabs button:hover {
	color: var(--eng-text);
}

.eng-inspector-tabs button.is-active {
	color: var(--eng-text);
}

.eng-inspector-tabs button.is-active::after {
	position: absolute;
	right: 14px;
	bottom: -1px;
	left: 14px;
	height: 2px;
	background: var(--eng-accent);
	content: "";
}

.eng-inspector-content {
	flex: 1;
	overflow-y: auto;
}

.eng-selection-summary {
	display: flex;
	align-items: center;
	gap: 9px;
}

.eng-selection-mark {
	display: flex;
	flex: 0 0 auto;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	border: 1px solid rgba(98, 180, 245, .35);
	border-radius: 6px;
	background: rgba(98, 180, 245, .08);
	color: var(--eng-blue);
	font: 700 13px/1 Consolas, monospace;
}

.eng-selection-copy {
	display: grid;
	min-width: 0;
}

.eng-selection-copy strong {
	color: var(--eng-text);
	font-size: 11px;
}

.eng-selection-copy small {
	margin-top: 3px;
	overflow: hidden;
	color: var(--eng-muted);
	font-size: 9px;
	line-height: 1.35;
	text-overflow: ellipsis;
}

.eng-general-properties {
	padding-top: 9px;
	padding-bottom: 9px;
}

.eng-cad-property-list {
	display: grid;
	border: 1px solid var(--eng-border);
	border-radius: 4px;
	overflow: hidden;
	background: var(--eng-panel-soft);
}

.eng-cad-property-list > button,
.eng-cad-property-list > span {
	display: grid;
	grid-template-columns: minmax(72px, .8fr) minmax(0, 1.2fr);
	align-items: center;
	min-height: 29px;
	padding: 0 8px;
	border: 0;
	border-bottom: 1px solid rgba(39, 49, 58, .72);
	background: transparent;
	color: var(--eng-soft-text);
	font-size: 9px;
	text-align: left;
}

.eng-cad-property-list > :last-child {
	border-bottom: 0;
}

.eng-cad-property-list > button {
	cursor: pointer;
}

.eng-cad-property-list > button:hover {
	background: var(--eng-panel-raised);
}

.eng-cad-property-list > button > span,
.eng-cad-property-list > span > span {
	color: var(--eng-muted);
}

.eng-cad-property-list strong {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	overflow: hidden;
	color: var(--eng-text);
	font-size: 9px;
	font-weight: 600;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.eng-cad-property-list strong i {
	width: 12px;
	height: 12px;
	flex: 0 0 auto;
	border: 1px solid rgba(255, 255, 255, .28);
	border-radius: 2px;
	background: #f1f5f7;
}

.eng-property-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 8px;
}

.eng-geometry-heading-actions { display:flex;align-items:center;gap:7px; }
.eng-aspect-lock {
	display:inline-flex;
	align-items:center;
	gap:4px;
	min-height:23px;
	padding:0 6px;
	border:1px solid #394751;
	border-radius:5px;
	background:#11191d;
	color:#7e8a92;
	font:700 8px/1 Consolas,monospace;
	cursor:pointer;
}
.eng-aspect-lock span { font-size:11px; }
.eng-aspect-lock.is-locked { border-color:rgba(98,230,210,.58);background:rgba(98,230,210,.09);color:#62e6d2; }
.eng-aspect-lock:focus-visible { outline:2px solid rgba(98,230,210,.28);outline-offset:1px; }

.eng-property-field {
	display: grid;
	grid-template-columns: 18px 1fr 23px;
	align-items: center;
	height: 32px;
	border: 1px solid var(--eng-border);
	border-radius: 4px;
	background: var(--eng-panel-soft);
	overflow: hidden;
}

.eng-property-field label {
	margin: 0;
	color: var(--eng-blue);
	font: 700 9px/1 Consolas, monospace;
	text-align: center;
}

.eng-property-field input {
	width: 100%;
	height: 30px;
	padding: 0 4px;
	border: 0;
	outline: 0;
	background: transparent;
	color: var(--eng-text);
	font: 11px/1 Consolas, "Courier New", monospace;
	text-align: right;
	-moz-appearance: textfield;
}

.eng-property-field input::-webkit-outer-spin-button,
.eng-property-field input::-webkit-inner-spin-button {
	margin: 0;
	-webkit-appearance: none;
}

.eng-property-field input:focus {
	background: rgba(255, 99, 55, .06);
}

.eng-property-field input:disabled {
	color: #4d5860;
}

.eng-property-field span {
	color: #65727b;
	font: 8px/1 Consolas, monospace;
}

.eng-property-field.is-wide {
	grid-column: 1 / -1;
}

.eng-property-field[hidden] {
	display: none !important;
}

.eng-property-help {
	margin-top: 8px;
	color: #6f7b84;
	font-size: 9px;
	line-height: 1.4;
}

.eng-path-actions{display:grid;gap:9px;margin-top:11px;padding:10px;border:1px solid rgba(98,230,210,.34);border-radius:5px;background:rgba(98,230,210,.055)}
.eng-path-actions[hidden]{display:none!important}.eng-path-actions>span{display:grid;gap:3px}.eng-path-actions strong{color:#d9e8ec;font-size:9px}.eng-path-actions small{color:#82949c;font-size:8px;line-height:1.4}.eng-path-actions button{width:100%;min-height:32px;padding:0 10px;border:1px solid #3b8078;border-radius:4px;background:#14302f;color:#9af0df;font-size:9px;font-weight:750;cursor:pointer}.eng-path-actions button:hover{border-color:#62e6d2;background:#19413e;color:#fff}.eng-path-actions button:disabled{opacity:.45;cursor:not-allowed}

#engineerStyleMount {
	min-height: 42px;
}

body.engineer-mode #colorPanel {
	position: static;
	z-index: auto;
	display: block;
	width: 100%;
	padding: 0;
	border: 0;
	border-radius: 0;
	background: transparent;
	box-shadow: none;
}

body.engineer-mode #colorPanel .colorContainer {
	display: flex;
	align-items: center;
	justify-content: flex-start;
	gap: 11px;
}

body.engineer-mode #colorPanel .sp-replacer {
	border-color: var(--eng-border);
	background: var(--eng-panel-soft);
	color: var(--eng-muted);
}

.eng-constraint-summary {
	display: grid;
	grid-template-columns: 12px 1fr;
	gap: 8px;
	align-items: start;
}

.eng-constraint-summary i {
	width: 8px;
	height: 8px;
	margin-top: 3px;
	border: 2px solid var(--eng-warning);
	border-radius: 50%;
}

.eng-constraint-summary strong {
	display: block;
	color: var(--eng-soft-text);
	font-size: 10px;
}

.eng-constraint-summary span {
	display: block;
	margin-top: 3px;
	color: var(--eng-muted);
	font-size: 9px;
	line-height: 1.45;
}

.eng-preflight-card {
	padding: 12px;
	border: 1px solid var(--eng-border);
	border-radius: 6px;
	background: var(--eng-panel-soft);
}

.eng-preflight-head {
	display: flex;
	align-items: center;
	gap: 8px;
}

.eng-preflight-indicator {
	width: 9px;
	height: 9px;
	border-radius: 50%;
	background: var(--eng-muted);
	box-shadow: 0 0 0 4px rgba(142, 154, 164, .09);
}

.eng-preflight-card[data-state="ready"] .eng-preflight-indicator {
	background: var(--eng-teal);
	box-shadow: 0 0 0 4px rgba(69, 199, 178, .1);
}

.eng-preflight-card[data-state="review"] .eng-preflight-indicator {
	background: var(--eng-warning);
	box-shadow: 0 0 0 4px rgba(245, 185, 66, .1);
}

.eng-preflight-card[data-state="empty"] .eng-preflight-indicator {
	background: var(--eng-muted);
}

.eng-preflight-copy {
	display: grid;
	flex: 1;
}

.eng-preflight-copy strong {
	color: var(--eng-text);
	font-size: 10.5px;
}

.eng-preflight-copy small {
	margin-top: 3px;
	color: var(--eng-muted);
	font-size: 9px;
	line-height: 1.45;
}

.eng-preflight-count {
	padding: 4px 6px;
	border-radius: 4px;
	background: var(--eng-panel-raised);
	color: var(--eng-muted);
	font: 8px/1 Consolas, monospace;
}

.eng-check-button {
	width: 100%;
	height: 31px;
	margin-top: 10px;
	border: 1px solid var(--eng-border-strong);
	border-radius: 4px;
	background: var(--eng-panel-raised);
	color: var(--eng-soft-text);
	font-size: 9.5px;
	font-weight: 600;
	cursor: pointer;
}

.eng-check-button:hover {
	border-color: var(--eng-accent);
	color: #fff;
}

.eng-milestone-list {
	display: grid;
	gap: 7px;
}

.eng-milestone {
	display: grid;
	grid-template-columns: 18px 1fr;
	gap: 6px;
	align-items: start;
	color: var(--eng-muted);
	font-size: 9px;
	line-height: 1.4;
}

.eng-milestone b {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 16px;
	height: 16px;
	border: 1px solid var(--eng-border);
	border-radius: 50%;
	color: #697680;
	font: 700 7px/1 Consolas, monospace;
}

.eng-model-tabs {
	position: fixed;
	z-index: 87;
	right: var(--cnc-workspace-right);
	bottom: var(--cnc-status-h);
	left: var(--cnc-workspace-left);
	height: var(--eng-model-h);
	display: flex;
	align-items: stretch;
	gap: 1px;
	padding: 0 8px;
	background: #0c1115;
	border-top: 1px solid var(--eng-border);
	border-bottom: 1px solid var(--eng-border);
}

.eng-model-tabs > button {
	position: relative;
	min-width: 58px;
	padding: 0 10px;
	border: 0;
	background: transparent;
	color: var(--eng-muted);
	font-size: 9px;
	font-weight: 600;
	cursor: pointer;
}

.eng-model-tabs > button:hover:not(:disabled),
.eng-model-tabs > button.is-active {
	background: var(--eng-panel-raised);
	color: var(--eng-text);
}

.eng-model-tabs > button.is-active::after {
	position: absolute;
	right: 8px;
	bottom: 0;
	left: 8px;
	height: 2px;
	background: var(--eng-accent);
	content: "";
}

.eng-model-tabs > button.is-active span {
	display: inline-block;
	width: 6px;
	height: 6px;
	margin-right: 6px;
	border-radius: 50%;
	background: var(--eng-teal);
}

.eng-model-tabs > button:disabled {
	opacity: .4;
	cursor: not-allowed;
}

.eng-model-tabs > .eng-model-add {
	min-width: 28px;
	padding: 0;
	font-size: 14px;
}

.eng-model-tabs-spacer {
	flex: 1 1 auto;
}

.eng-model-coordinate-system {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	color: var(--eng-muted);
	font: 700 8px/1 Consolas, monospace;
}

.eng-model-coordinate-system i,
.eng-model-coordinate-system b {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 15px;
	height: 15px;
	border-radius: 3px;
	font-style: normal;
}

.eng-model-coordinate-system i {
	background: rgba(255, 99, 55, .12);
	color: var(--eng-accent);
}

.eng-model-coordinate-system b {
	background: rgba(69, 199, 178, .1);
	color: var(--eng-teal);
}

.eng-model-coordinate-system strong {
	margin-left: 3px;
	color: #6f7c85;
	font-size: 8px;
}

.eng-command-bar {
	position: fixed;
	z-index: 88;
	right: var(--cnc-workspace-right);
	bottom: calc(var(--cnc-status-h) + var(--eng-model-h));
	left: var(--cnc-workspace-left);
	height: var(--eng-command-h);
	padding: 3px 10px 5px;
	background: rgba(12, 17, 21, .98);
	border-top: 1px solid var(--eng-border);
	box-shadow: 0 -8px 22px rgba(0, 0, 0, .2);
	transition: right .18s ease, left .18s ease;
}

.eng-command-topline {
	display: flex;
	align-items: center;
	height: 20px;
	gap: 8px;
}

.eng-command-mode {
	color: var(--eng-accent);
	font: 700 8px/1 Consolas, monospace;
	letter-spacing: .1em;
	text-transform: uppercase;
}

.eng-command-transcript {
	flex: 1;
	display: flex;
	align-items: center;
	gap: 10px;
	min-width: 0;
	height: 20px;
	margin: 0;
	padding: 0;
	overflow: hidden;
	list-style: none;
}

.eng-command-message {
	flex: 0 1 auto;
	overflow: hidden;
	color: var(--eng-muted);
	font: 9px/1.2 Consolas, "Courier New", monospace;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.eng-command-message:not(:last-child) {
	opacity: .38;
}

.eng-command-message.is-success {
	color: var(--eng-teal);
}

.eng-command-message.is-error {
	color: var(--eng-warning);
}

.eng-command-message.is-prompt {
	color: var(--eng-blue);
}

.eng-active-tool {
	display: inline-flex;
	align-items: center;
	gap: 5px;
	color: var(--eng-muted);
	font-size: 8px;
	white-space: nowrap;
}

.eng-active-tool::before {
	width: 5px;
	height: 5px;
	border-radius: 50%;
	background: var(--eng-blue);
	content: "";
}

.eng-command-input-row {
	position: relative;
	display: grid;
	grid-template-columns: auto 14px 1fr auto;
	align-items: center;
	height: 34px;
	border: 1px solid var(--eng-border-strong);
	border-radius: 5px;
	background: #080c0f;
}

.eng-command-input-row:focus-within {
	border-color: var(--eng-accent);
	box-shadow: 0 0 0 2px rgba(255, 99, 55, .08);
}

.eng-command-prompt {
	padding-left: 10px;
	color: var(--eng-soft-text);
	font: 700 9px/1 Consolas, monospace;
	letter-spacing: .04em;
	white-space: nowrap;
}

.eng-command-chevron {
	color: var(--eng-accent);
	font: 700 14px/1 Consolas, monospace;
	text-align: center;
}

#engineerCommandInput {
	width: 100%;
	height: 32px;
	padding: 0 7px;
	border: 0;
	outline: 0;
	background: transparent;
	color: var(--eng-text);
	font: 11px/1 Consolas, "Courier New", monospace;
}

#engineerCommandInput::placeholder {
	color: #55616a;
}

.eng-command-shortcut {
	display: inline-flex;
	gap: 4px;
	align-items: center;
	padding-right: 8px;
	color: #59656e;
	font-size: 8px;
	white-space: nowrap;
}

.eng-command-shortcut kbd {
	padding: 2px 4px;
	border: 1px solid var(--eng-border);
	border-radius: 3px;
	background: var(--eng-panel-raised);
	color: var(--eng-muted);
	font: 7px/1 Consolas, monospace;
}

.eng-command-suggestions {
	position: absolute;
	z-index: 110;
	right: 10px;
	bottom: 58px;
	left: 10px;
	max-height: 230px;
	margin: 0;
	padding: 5px;
	overflow-y: auto;
	border: 1px solid var(--eng-border-strong);
	border-radius: 6px;
	background: rgba(18, 24, 29, .99);
	box-shadow: 0 -14px 34px rgba(0, 0, 0, .42);
	list-style: none;
}

.eng-command-suggestions[hidden] {
	display: none;
}

.eng-command-suggestions li {
	display: grid;
	grid-template-columns: 92px 1fr auto;
	align-items: center;
	gap: 8px;
	min-height: 31px;
	padding: 4px 7px;
	border-radius: 4px;
	cursor: pointer;
}

.eng-command-suggestions li:hover {
	background: var(--eng-panel-raised);
}

.eng-command-suggestions strong {
	color: var(--eng-accent);
	font: 700 10px Consolas, monospace;
}

.eng-command-suggestions span {
	overflow: hidden;
	color: var(--eng-soft-text);
	font-size: 8.5px;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.eng-command-suggestions code {
	color: var(--eng-muted);
	font: 8px Consolas, monospace;
	white-space: nowrap;
}

.eng-command-reference {
	position: fixed;
	z-index: 210;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 24px;
	background: rgba(4, 7, 9, .76);
	backdrop-filter: blur(5px);
}

.eng-command-reference[hidden] {
	display: none;
}

.eng-command-reference-card {
	width: min(820px, 94vw);
	max-height: min(720px, 88vh);
	display: flex;
	flex-direction: column;
	overflow: hidden;
	border: 1px solid var(--eng-border-strong);
	border-radius: 9px;
	background: var(--eng-panel);
	box-shadow: 0 30px 90px rgba(0, 0, 0, .5);
}

.eng-command-reference-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	min-height: 50px;
	padding: 0 16px;
	border-bottom: 1px solid var(--eng-border);
}

.eng-command-reference-head div {
	display: grid;
}

.eng-command-reference-head strong {
	color: var(--eng-text);
	font-size: 12px;
}

.eng-command-reference-head small {
	margin-top: 3px;
	color: var(--eng-muted);
	font-size: 8.5px;
}

.eng-command-reference-head button {
	width: 30px;
	height: 30px;
	border: 1px solid var(--eng-border);
	border-radius: 5px;
	background: var(--eng-panel-soft);
	color: var(--eng-muted);
	cursor: pointer;
}

.eng-command-reference-body {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 18px 24px;
	padding: 16px;
	overflow-y: auto;
}

.eng-command-reference-body section {
	min-width: 0;
}

.eng-command-reference-body h3 {
	margin: 0 0 6px;
	padding-bottom: 5px;
	border-bottom: 1px solid var(--eng-border);
	color: var(--eng-muted);
	font-size: 8px;
	letter-spacing: .14em;
	text-transform: uppercase;
}

.eng-command-reference-row {
	display: grid;
	grid-template-columns: minmax(115px, .8fr) 1.2fr;
	gap: 10px;
	padding: 5px 0;
	border-bottom: 1px solid rgba(39, 49, 58, .5);
}

.eng-command-reference-row code {
	color: var(--eng-accent);
	font: 8.5px Consolas, monospace;
}

.eng-command-reference-row span {
	color: var(--eng-soft-text);
	font-size: 8px;
	line-height: 1.4;
}

/* Reframe the existing editor chrome inside the docked workspace. */
body.engineer-mode #appNav,
body.engineer-mode .header-navbar-side {
	display: none !important;
}

body.engineer-mode #sketcutCanvas {
	background: var(--eng-model-bg);
}

body.engineer-mode .statusBar {
	z-index: 96;
	gap: 10px;
	background: #0d1216;
	border-top-color: var(--eng-border);
}

body.engineer-mode #cncRulerX {
	right: var(--cnc-workspace-right);
	bottom: var(--cnc-workspace-bottom);
	left: calc(var(--cnc-workspace-left) + var(--cnc-ruler-w));
	z-index: 61;
}

body.engineer-mode #cncRulerY {
	top: var(--cnc-workspace-top);
	bottom: calc(var(--cnc-workspace-bottom) + var(--cnc-ruler-h));
	left: var(--cnc-workspace-left);
	z-index: 61;
}

body.engineer-mode #cncRulerCorner {
	bottom: var(--cnc-workspace-bottom);
	left: var(--cnc-workspace-left);
	z-index: 62;
	background: #192129;
	border-color: #35414b;
	color: #c4cdd4;
}

body.engineer-mode #cncCrossV {
	top: var(--cnc-workspace-top);
	bottom: calc(var(--cnc-workspace-bottom) + var(--cnc-ruler-h));
	z-index: 60;
	background: rgba(220, 230, 237, .46);
}

body.engineer-mode #cncCrossH {
	right: var(--cnc-workspace-right);
	left: calc(var(--cnc-workspace-left) + var(--cnc-ruler-w));
	z-index: 60;
	background: rgba(220, 230, 237, .46);
}

/* Engineering owns tool configuration in the ribbon family dropdowns. The
   legacy floating option panel otherwise duplicates those controls and can
   overwrite the method chosen in the ribbon after a tool switch. */
body.engineer-mode .toolOptionPanel {
	display: none !important;
}

/* Collaboration is a first-class Engineer overlay, not legacy chrome hidden
   below the ribbon, inspector, or command line. */
body.engineer-mode .sketch-collab-panel {
	z-index: 150;
	top: calc(var(--cnc-workspace-top) + 9px);
	right: calc(var(--cnc-workspace-right) + 9px);
	bottom: calc(var(--cnc-workspace-bottom) + var(--cnc-ruler-h) + 9px);
}

body.engineer-mode .sketch-collab-request-modal {
	z-index: 160;
}

body.engineer-mode .sketch-collab-composer {
	z-index: 155;
	bottom: calc(var(--cnc-workspace-bottom) + var(--cnc-ruler-h) + 14px);
}

body.engineer-mode .sketch-collab-stats {
	z-index: 145;
	right: calc(var(--cnc-workspace-right) + 9px);
	bottom: calc(var(--cnc-workspace-bottom) + var(--cnc-ruler-h) + 7px);
}

body.engineer-mode .sketch-collab-readonly {
	z-index: 145;
	top: calc(var(--cnc-workspace-top) + 9px);
}

@media (max-width: 1370px) {
	body.engineer-mode {
		--eng-left-w: 220px;
		--eng-right-w: 270px;
		--cnc-workspace-left: 220px;
		--cnc-workspace-right: 270px;
	}

	.engineer-left-collapsed {
		--cnc-workspace-left: 0px !important;
	}

	.engineer-right-collapsed {
		--cnc-workspace-right: 0px !important;
	}

	.eng-brand {
		min-width: 154px;
	}

	.eng-tool {
		min-width: 46px;
	}
}

@media (max-width: 1179px) {
	body.engineer-mode,
	body.engineer-mode.engineer-left-collapsed,
	body.engineer-mode.engineer-right-collapsed {
		--cnc-workspace-left: 0px;
		--cnc-workspace-right: 0px;
	}

	.eng-quick-access,
	.eng-workspace-label {
		display: none;
	}

	.eng-ribbon-tabs > button:not(.eng-layer-control) {
		min-width: 52px;
		padding-right: 9px;
		padding-left: 9px;
	}

	.eng-panel {
		z-index: 101;
		top: var(--cnc-workspace-top);
		bottom: var(--cnc-status-h);
		box-shadow: 0 18px 50px rgba(0, 0, 0, .55);
	}

	.eng-panel-backdrop {
		position: fixed;
		z-index: 100;
		top: var(--cnc-workspace-top);
		right: 0;
		bottom: var(--cnc-status-h);
		left: 0;
		border: 0;
		background: rgba(3, 6, 8, .55);
		backdrop-filter: blur(2px);
	}

	.engineer-left-open .eng-panel-backdrop,
	.engineer-right-open .eng-panel-backdrop {
		display: block;
	}

	.eng-panel-close {
		display: inline-flex;
	}

	.eng-panel-right .eng-inspector-tabs {
		padding-right: 34px;
	}

	.eng-panel-left {
		transform: translateX(-100%);
	}

	.eng-panel-right {
		transform: translateX(100%);
	}

	.engineer-left-open .eng-panel-left {
		transform: translateX(0);
	}

	.engineer-right-open .eng-panel-right {
		transform: translateX(0);
	}

	.eng-document {
		display: flex;
		flex: 0 1 150px;
	}

	.eng-document strong {
		max-width: 105px;
	}

	.eng-tool.is-planned {
		display: none;
	}

	body.engineer-mode .toolOptionPanel {
		z-index: 103;
		right: 9px !important;
	}

	body.engineer-mode.engineer-right-open .toolOptionPanel {
		right: calc(var(--eng-right-w) + 9px) !important;
	}

	body.engineer-mode .sketch-collab-panel,
	body.engineer-mode .sketch-collab-stats {
		right: 9px;
	}
}

@media (max-width: 820px) {
	.eng-brand-copy strong {
		font-size: 10px;
	}

	.eng-brand-copy span {
		font-size: 7.5px;
	}

	.eng-file-actions .eng-top-button:not(.is-primary) {
		display: none;
	}

	.eng-save-state {
		display: none;
	}

	.eng-document,
	.eng-doc-divider {
		display: none;
	}

	.eng-command-suggestions li {
		grid-template-columns: 76px 1fr;
	}

	.eng-command-suggestions code {
		display: none;
	}

	body.engineer-mode .statusBar .sb-mid {
		display: none;
	}
}

@media (max-width: 620px) {
	body.engineer-mode {
		--eng-docbar-h: 42px;
		--eng-ribbon-h: 66px;
		--eng-command-h: 64px;
		--cnc-workspace-top: 108px;
		--cnc-workspace-bottom: 94px;
	}

	.eng-docbar {
		gap: 6px;
		padding: 0 6px;
	}

	.eng-brand {
		min-width: 40px;
	}

	.eng-brand-copy {
		display: none;
	}

	.eng-file-actions {
		margin-left: auto;
	}

	#engineerCollaborationMount {
		display: flex;
	}

	body.engineer-mode #sketchCollaborationToggle {
		padding-right: 5px;
		padding-left: 5px;
	}

	body.engineer-mode #sketchCollaborationToggle > span:not(.sketch-collab-live-dot) {
		display: none;
	}

	.eng-ribbon {
		padding-right: 4px;
		padding-left: 4px;
	}

	.eng-ribbon-group {
		padding-right: 5px;
		padding-left: 5px;
	}

	.eng-command-bar {
		padding: 4px 6px 5px;
	}

	.eng-command-topline {
		height: 16px;
	}

	.eng-command-message {
		font-size: 8px;
	}

	.eng-command-input-row {
		height: 37px;
		grid-template-columns: auto 12px 1fr;
	}

	#engineerCommandInput {
		height: 35px;
	}

	.eng-command-shortcut {
		display: none;
	}

	.eng-command-suggestions {
		right: 6px;
		bottom: 58px;
		left: 6px;
	}

	.eng-command-reference-body {
		grid-template-columns: 1fr;
	}

	.eng-panel-left {
		width: min(86vw, 280px);
	}

	.eng-panel-right {
		width: min(90vw, 310px);
	}

	body.engineer-mode.engineer-right-open .toolOptionPanel {
		right: calc(min(90vw, 310px) + 9px) !important;
	}

	body.engineer-mode .statusBar {
		padding: 0 5px;
	}

	body.engineer-mode .statusBar .sb-unit,
	body.engineer-mode .statusBar .sb-toggle:not(.active),
	body.engineer-mode .statusBar #cncCrossBtn {
		display: none;
	}

	body.engineer-mode .mousepositionLabel .coord-val {
		min-width: 48px;
		margin-right: 4px;
	}

	.eng-tool-family-menu {
		top: auto !important;
		right: 7px !important;
		bottom: calc(var(--eng-command-h) + var(--cnc-status-h) + 7px);
		left: 7px !important;
		width: auto;
		max-height: min(56vh, 470px);
		border-radius: 11px 11px 7px 7px;
	}

	.eng-tool-family-items {
		max-height: calc(min(56vh, 470px) - 104px);
	}

	.eng-tool-family-item {
		min-height: 56px;
	}

	.eng-tool-family-menu footer {
		display: none;
	}
}

@media (max-width: 504px) {
	body.engineer-mode.engineer-right-open .toolOptionPanel {
		right: 8px !important;
		left: 8px !important;
		min-width: 0;
		max-width: none;
	}
}

@media (prefers-reduced-motion: reduce) {
	.eng-panel,
	.eng-command-bar,
	.eng-tool,
	.eng-top-button,
	.eng-icon-button {
		transition: none !important;
	}
}

/* ---------------------------------------------------------------
   Touch-first controls for tablets and hybrid devices
   --------------------------------------------------------------- */

@media (pointer: coarse) {
	.eng-top-button,
	.eng-icon-button,
	.eng-panel-close,
	.eng-command-reference-head button,
	.eng-tool-family-head button,
	.eng-layer-visibility,
	.eng-view-button,
	.eng-check-button,
	.eng-inspector-tabs button,
	.eng-cad-property-list > button {
		min-width: 44px;
		min-height: 44px;
	}

	body.engineer-mode #colorPanel .sp-replacer,
	body.engineer-mode #colorPanel button {
		min-width: 45px;
		min-height: 44px;
	}

	.eng-tool-split {
		grid-template-columns: minmax(48px, auto) 44px;
	}

	.eng-tool-menu-toggle {
		width: 44px;
		min-width: 44px;
		min-height: 44px;
	}

	.eng-tool-family-item {
		min-height: 60px;
	}

	body.engineer-mode .toolOptionPanel input,
	body.engineer-mode .toolOptionPanel select,
	body.engineer-mode .toolOptionPanel button,
	.eng-property-field input {
		min-height: 44px;
		font-size: 16px;
	}

	.eng-ribbon {
		-webkit-overflow-scrolling: touch;
		overscroll-behavior-x: contain;
		scroll-snap-type: x proximity;
		scroll-padding-inline: calc(8px + var(--eng-safe-left));
	}

	.eng-ribbon-group {
		scroll-snap-align: start;
	}
}

@media (hover: none) {
	.eng-tool:hover,
	.eng-top-button:hover,
	.eng-icon-button:hover,
	.eng-view-button:hover,
	.eng-tool-family-item:hover {
		border-color: transparent;
		background: transparent;
		color: inherit;
	}

	.eng-tool:active,
	.eng-top-button:active,
	.eng-icon-button:active,
	.eng-view-button:active,
	.eng-tool-family-item:active,
	.eng-mobile-dock button:active,
	.eng-mobile-tool-main:active {
		background: var(--eng-accent-soft);
		color: var(--eng-accent);
		transform: scale(.98);
	}
}

/* ---------------------------------------------------------------
   Phone app shell: portrait phones and short phone landscapes
   --------------------------------------------------------------- */

@media (max-width: 620px),
	(max-width: 932px) and (max-height: 520px) and (orientation: landscape) {
	body.engineer-mode {
		--eng-docbar-h: calc(50px + var(--eng-safe-top));
		--eng-ribbon-h: 0px;
		--eng-command-h: 100px;
		--eng-model-h: 0px;
		--cnc-ruler-w: 0px;
		--cnc-ruler-h: 0px;
		--cnc-workspace-top: 50px;
		--cnc-workspace-left: 0px;
		--cnc-workspace-right: 0px;
		--cnc-workspace-bottom: 64px;
		width: 100%;
		height: 100vh;
		height: 100dvh;
		position: fixed;
		inset: 0;
		overflow: hidden;
	}

	.eng-mobile-only {
		display: inline-flex;
	}

	.eng-docbar {
		height: var(--eng-docbar-h);
		gap: 4px;
		padding:
			var(--eng-safe-top)
			calc(6px + var(--eng-safe-right))
			0
			calc(6px + var(--eng-safe-left));
	}

	.eng-brand {
		min-width: 38px;
	}

	.eng-brand img {
		width: 32px;
		height: 32px;
	}

	.eng-brand-copy,
	.eng-quick-access,
	.eng-doc-divider,
	.eng-document-badge {
		display: none;
	}

	.eng-back-link {
		width: 44px;
		height: 44px;
		justify-content: center;
		padding: 0;
		font-size: 0;
	}

	.eng-back-icon {
		font-size: 21px;
	}

	.eng-document {
		display: flex;
		flex: 1 1 auto;
		min-width: 0;
	}

	.eng-document strong {
		width: 100%;
		max-width: none;
		font-size: 12px;
	}

	.eng-file-actions {
		flex: 0 0 auto;
		margin: 0;
	}

	.eng-file-actions .eng-top-button:not(.is-primary),
	.eng-save-state {
		display: none;
	}

	.eng-top-button.is-primary {
		min-width: 48px;
		height: 44px;
		padding: 0 9px;
	}

	.eng-window-actions {
		flex: 0 0 auto;
	}

	.eng-window-actions > :not(.eng-mobile-only) {
		display: none !important;
	}

	.eng-window-actions .eng-mobile-only {
		align-items: center;
		justify-content: center;
		width: 44px;
		height: 44px;
		letter-spacing: 1px;
	}

	.eng-ribbon,
	.eng-model-tabs,
	.eng-navigation-widget,
	.eng-ucs-indicator,
	body.engineer-mode .statusBar,
	body.engineer-mode #cncRulerX,
	body.engineer-mode #cncRulerY,
	body.engineer-mode #cncRulerCorner,
	body.engineer-mode #cncCrossV,
	body.engineer-mode #cncCrossH {
		display: none !important;
	}

	.eng-mobile-dock {
		position: fixed;
		z-index: 142;
		right: 0;
		bottom: 0;
		left: 0;
		height: calc(var(--eng-mobile-dock-h) + var(--eng-safe-bottom));
		display: grid;
		grid-template-columns: repeat(5, minmax(0, 1fr));
		padding:
			4px
			calc(4px + var(--eng-safe-right))
			var(--eng-safe-bottom)
			calc(4px + var(--eng-safe-left));
		border-top: 1px solid var(--eng-border-strong);
		background: rgba(13, 18, 22, .985);
		box-shadow: 0 -12px 30px rgba(0, 0, 0, .34);
	}

	.eng-mobile-dock button {
		min-width: 0;
		min-height: 56px;
		display: grid;
		grid-template-rows: 27px 14px;
		align-content: center;
		justify-items: center;
		gap: 2px;
		padding: 3px 2px;
		border: 0;
		border-radius: 9px;
		background: transparent;
		color: var(--eng-muted);
	}

	.eng-mobile-dock button > span {
		font: 600 21px/1 "Segoe UI Symbol", Consolas, monospace;
	}

	.eng-mobile-dock button > strong {
		overflow: hidden;
		max-width: 100%;
		font-size: 10px;
		font-weight: 650;
		text-overflow: ellipsis;
		white-space: nowrap;
	}

	.eng-mobile-dock button.is-active,
	.eng-mobile-dock button[aria-expanded="true"],
	.eng-mobile-dock button[aria-pressed="true"] {
		background: var(--eng-accent-soft);
		color: var(--eng-accent);
	}

	.eng-mobile-history {
		position: fixed;
		z-index: 82;
		top: calc(var(--eng-docbar-h) + 8px);
		left: calc(var(--eng-safe-left) + 8px);
		display: flex;
		gap: 4px;
		padding: 3px;
		border: 1px solid var(--eng-border);
		border-radius: 11px;
		background: rgba(14, 20, 24, .9);
		box-shadow: 0 8px 22px rgba(0, 0, 0, .25);
		backdrop-filter: blur(10px);
	}

	.eng-mobile-history button {
		width: 44px;
		height: 44px;
		border: 0;
		border-radius: 8px;
		background: transparent;
		color: var(--eng-soft-text);
		font-size: 21px;
	}

	.eng-panel {
		z-index: 158;
		top: var(--eng-docbar-h);
		right: 0;
		bottom: calc(var(--eng-mobile-dock-h) + var(--eng-safe-bottom));
		left: 0;
		width: 100% !important;
		max-width: none;
		padding-right: var(--eng-safe-right);
		padding-left: var(--eng-safe-left);
		border: 0;
		border-radius: 0;
		overflow-x: hidden;
		overflow-y: auto;
		overscroll-behavior: contain;
		-webkit-overflow-scrolling: touch;
	}

	.eng-panel-backdrop {
		z-index: 157;
		top: var(--eng-docbar-h);
		bottom: calc(var(--eng-mobile-dock-h) + var(--eng-safe-bottom));
	}

	.eng-panel-close,
	.eng-panel-close-floating {
		width: 44px;
		height: 44px;
	}

	.eng-mobile-sheet-backdrop {
		position: fixed;
		z-index: 174;
		top: var(--eng-docbar-h);
		right: 0;
		bottom: calc(var(--eng-mobile-dock-h) + var(--eng-safe-bottom));
		left: 0;
		display: block;
		border: 0;
		background: rgba(3, 6, 8, .58);
		backdrop-filter: blur(3px);
	}

	.eng-mobile-sheet-backdrop[hidden],
	.eng-mobile-sheet[hidden] {
		display: none;
	}

	.eng-mobile-sheet {
		position: fixed;
		z-index: 175;
		right: calc(7px + var(--eng-safe-right));
		bottom: calc(var(--eng-mobile-dock-h) + var(--eng-safe-bottom) + 7px);
		left: calc(7px + var(--eng-safe-left));
		max-height: min(68dvh, 620px);
		display: flex;
		flex-direction: column;
		overflow: hidden;
		border: 1px solid var(--eng-border-strong);
		border-radius: 16px 16px 10px 10px;
		background: rgba(17, 23, 28, .995);
		box-shadow: 0 -22px 60px rgba(0, 0, 0, .55);
	}

	.eng-mobile-sheet-handle {
		flex: 0 0 auto;
		align-self: center;
		width: 42px;
		height: 4px;
		margin: 7px 0 2px;
		border-radius: 4px;
		background: var(--eng-border-strong);
	}

	.eng-mobile-sheet > header {
		min-height: 58px;
		display: flex;
		align-items: center;
		justify-content: space-between;
		gap: 10px;
		padding: 4px 8px 7px 14px;
		border-bottom: 1px solid var(--eng-border);
	}

	.eng-mobile-sheet > header > span {
		min-width: 0;
		display: grid;
	}

	.eng-mobile-sheet > header strong {
		font-size: 15px;
	}

	.eng-mobile-sheet > header small {
		margin-top: 3px;
		overflow: hidden;
		color: var(--eng-muted);
		font-size: 11px;
		line-height: 1.25;
		white-space: normal;
	}

	.eng-mobile-sheet > header button {
		flex: 0 0 44px;
		width: 44px;
		height: 44px;
		border: 1px solid var(--eng-border);
		border-radius: 10px;
		background: var(--eng-panel-soft);
		font-size: 23px;
	}

	.eng-mobile-sheet-items {
		display: grid;
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 7px;
		padding: 9px 9px calc(10px + var(--eng-safe-bottom));
		overflow-x: hidden;
		overflow-y: auto;
		overscroll-behavior: contain;
		-webkit-overflow-scrolling: touch;
	}

	.eng-mobile-tool-card {
		min-width: 0;
		min-height: 66px;
		display: grid;
		grid-template-columns: minmax(0, 1fr) 44px;
		overflow: hidden;
		border: 1px solid var(--eng-border);
		border-radius: 10px;
		background: var(--eng-panel-soft);
	}

	.eng-mobile-tool-card.is-single {
		grid-template-columns: 1fr;
	}

	.eng-mobile-tool-main,
	.eng-mobile-tool-methods {
		min-width: 0;
		min-height: 64px;
		border: 0;
		background: transparent;
	}

	.eng-mobile-tool-main {
		display: grid;
		grid-template-columns: 34px minmax(0, 1fr);
		align-items: center;
		gap: 6px;
		padding: 7px 6px 7px 9px;
		text-align: left;
	}

	.eng-mobile-tool-main > i {
		display: grid;
		place-items: center;
		width: 32px;
		height: 32px;
		border-radius: 8px;
		background: rgba(69, 199, 178, .09);
		color: var(--eng-teal);
		font: normal 18px/1 "Segoe UI Symbol", Consolas, monospace;
	}

	.eng-mobile-tool-main > span {
		min-width: 0;
		display: grid;
	}

	.eng-mobile-tool-main strong {
		overflow: hidden;
		font-size: 12px;
		text-overflow: ellipsis;
		white-space: nowrap;
	}

	.eng-mobile-tool-main small {
		display: -webkit-box;
		margin-top: 3px;
		overflow: hidden;
		color: var(--eng-muted);
		font-size: 9.5px;
		line-height: 1.2;
		white-space: normal;
		-webkit-box-orient: vertical;
		-webkit-line-clamp: 2;
	}

	.eng-mobile-tool-methods {
		border-left: 1px solid var(--eng-border);
		color: var(--eng-muted);
		font-size: 20px;
	}

	.eng-tool-family-menu {
		z-index: 184;
		top: auto !important;
		right: calc(7px + var(--eng-safe-right)) !important;
		bottom: calc(var(--eng-mobile-dock-h) + var(--eng-safe-bottom) + 7px);
		left: calc(7px + var(--eng-safe-left)) !important;
		width: auto;
		max-height: min(70dvh, 640px);
		border-radius: 16px 16px 10px 10px;
	}

	.eng-tool-family-head {
		min-height: 64px;
	}

	.eng-tool-family-head button {
		width: 44px;
		height: 44px;
	}

	.eng-tool-family-items {
		max-height: calc(min(70dvh, 640px) - 78px);
		padding: 7px;
	}

	.eng-tool-family-item {
		min-height: 66px;
		grid-template-columns: 40px 1fr auto;
		gap: 8px;
	}

	.eng-tool-family-copy strong {
		font-size: 13px;
	}

	.eng-tool-family-copy small {
		display: -webkit-box;
		overflow: hidden;
		font-size: 11px;
		line-height: 1.25;
		white-space: normal;
		-webkit-box-orient: vertical;
		-webkit-line-clamp: 2;
	}

	.eng-tool-family-menu footer {
		display: none;
	}

	.eng-command-bar {
		z-index: 188;
		right: calc(6px + var(--eng-safe-right));
		bottom: calc(var(--eng-mobile-dock-h) + var(--eng-safe-bottom) + var(--eng-keyboard-inset) + 6px);
		left: calc(6px + var(--eng-safe-left));
		width: auto;
		height: var(--eng-command-h);
		padding: 5px 6px 7px;
		border: 1px solid var(--eng-border-strong);
		border-radius: 13px;
		opacity: 0;
		pointer-events: none;
		transform: translateY(calc(100% + 18px));
		transition: opacity .16s ease, transform .18s ease;
	}

	body.engineer-mode.engineer-command-open .eng-command-bar {
		opacity: 1;
		pointer-events: auto;
		transform: translateY(0);
	}

	.eng-command-topline {
		height: 44px;
	}

	.eng-command-transcript,
	.eng-command-shortcut {
		display: none;
	}

	.eng-active-tool {
		margin-left: auto;
	}

	.eng-command-mobile-close {
		align-items: center;
		justify-content: center;
		width: 44px;
		height: 44px;
		margin: 0 -2px 0 3px;
		border: 0;
		background: transparent;
		font-size: 22px;
	}

	.eng-command-input-row {
		height: 44px;
		grid-template-columns: auto 14px 1fr;
	}

	#engineerCommandInput {
		height: 42px;
		font-size: 16px;
	}

	.eng-command-suggestions {
		right: 0;
		bottom: calc(100% + 7px);
		left: 0;
		max-height: min(42dvh, 310px);
	}

	.eng-command-suggestions li {
		min-height: 48px;
		grid-template-columns: 82px 1fr;
	}

	.eng-command-suggestions strong {
		font-size: 12px;
	}

	.eng-command-suggestions span {
		font-size: 11px;
	}

	body.engineer-mode.engineer-keyboard-open .eng-mobile-dock,
	body.engineer-mode.engineer-keyboard-open .eng-mobile-history,
	body.engineer-mode.engineer-keyboard-open .eng-mobile-sheet,
	body.engineer-mode.engineer-keyboard-open .eng-mobile-sheet-backdrop {
		display: none !important;
	}

	body.engineer-mode.engineer-keyboard-open .eng-command-bar {
		bottom: calc(var(--eng-keyboard-inset) + 5px);
	}

	body.engineer-mode .toolOptionPanel,
	body.engineer-mode.engineer-right-open .toolOptionPanel {
		z-index: 181;
		top: auto !important;
		right: calc(7px + var(--eng-safe-right)) !important;
		bottom: calc(var(--eng-mobile-dock-h) + var(--eng-safe-bottom) + 7px);
		left: calc(7px + var(--eng-safe-left)) !important;
		width: auto !important;
		min-width: 0;
		max-width: none;
		max-height: min(58dvh, 520px);
		padding-bottom: calc(10px + var(--eng-safe-bottom));
		overflow-x: hidden;
		overflow-y: auto;
		border-radius: 15px 15px 9px 9px;
		overscroll-behavior: contain;
		-webkit-overflow-scrolling: touch;
	}

	body.engineer-mode.engineer-mobile-sheet-open .toolOptionPanel,
	body.engineer-mode.engineer-left-open .toolOptionPanel,
	body.engineer-mode.engineer-right-open .toolOptionPanel,
	body.engineer-mode.engineer-command-open .toolOptionPanel {
		display: none !important;
	}

	body.engineer-mode .toolOptionPanel input,
	body.engineer-mode .toolOptionPanel select,
	body.engineer-mode .toolOptionPanel button,
	.eng-property-field input,
	.zoomInput,
	.sb-num {
		min-height: 44px;
		font-size: 16px;
	}

	.eng-property-field {
		height: 46px;
		grid-template-columns: 28px minmax(0, 1fr) 36px;
	}

	.eng-property-field input {
		height: 44px;
	}

	.colorContainer .fill,
	.colorContainer .stroke {
		min-width: 44px;
		min-height: 44px;
	}

	.eng-command-reference {
		align-items: stretch;
		padding:
			calc(var(--eng-docbar-h) + 6px)
			calc(6px + var(--eng-safe-right))
			calc(var(--eng-mobile-dock-h) + var(--eng-safe-bottom) + 6px)
			calc(6px + var(--eng-safe-left));
	}

	.eng-command-reference-card {
		width: 100%;
		max-height: none;
		border-radius: 13px;
	}

	body.engineer-mode .sketch-collab-panel {
		top: calc(var(--eng-docbar-h) + 7px);
		right: calc(var(--eng-safe-right) + 7px);
		bottom: calc(var(--eng-mobile-dock-h) + var(--eng-safe-bottom) + 7px);
		left: calc(var(--eng-safe-left) + 7px);
		width: auto;
		max-width: none;
	}
}

@media (max-width: 380px) and (orientation: portrait) {
	.eng-brand {
		display: none;
	}

	.eng-back-label {
		display: none;
	}

	.eng-document strong {
		font-size: 11px;
	}

	.eng-mobile-sheet-items {
		grid-template-columns: 1fr;
	}

	.eng-mobile-dock button > strong {
		font-size: 9px;
	}

	.eng-tool-family-state {
		max-width: 50px;
		overflow: hidden;
		font-size: 6.5px;
		text-overflow: ellipsis;
	}
}

@media (max-width: 932px) and (max-height: 520px) and (orientation: landscape) {
	body.engineer-mode {
		--eng-docbar-h: calc(44px + var(--eng-safe-top));
		--eng-mobile-dock-h: 60px;
		--cnc-workspace-top: 44px;
		--cnc-workspace-left: 60px;
		--cnc-workspace-bottom: 0px;
	}

	.eng-brand {
		display: none;
	}

	.eng-back-label {
		display: none;
	}

	.eng-docbar {
		padding-right: calc(5px + var(--eng-safe-right));
		padding-left: calc(5px + var(--eng-safe-left));
	}

	.eng-mobile-dock {
		top: var(--eng-docbar-h);
		right: auto;
		bottom: 0;
		left: 0;
		width: calc(var(--eng-mobile-dock-h) + var(--eng-safe-left));
		height: auto;
		grid-template-columns: 1fr;
		grid-template-rows: repeat(5, minmax(0, 1fr));
		padding:
			4px
			4px
			calc(4px + var(--eng-safe-bottom))
			var(--eng-safe-left);
		border-top: 0;
		border-right: 1px solid var(--eng-border-strong);
	}

	.eng-mobile-sheet-backdrop {
		top: var(--eng-docbar-h);
		right: 0;
		bottom: 0;
		left: calc(var(--eng-mobile-dock-h) + var(--eng-safe-left));
	}

	.eng-mobile-dock button {
		min-height: 48px;
		grid-template-rows: 23px 11px;
	}

	.eng-mobile-dock button > span {
		font-size: 18px;
	}

	.eng-mobile-dock button > strong {
		font-size: 8px;
	}

	.eng-mobile-history {
		top: calc(var(--eng-docbar-h) + 6px);
		left: calc(var(--eng-mobile-dock-h) + var(--eng-safe-left) + 7px);
	}

	.eng-panel,
	.eng-panel-backdrop {
		bottom: 0;
	}

	.eng-mobile-sheet,
	.eng-tool-family-menu,
	body.engineer-mode .toolOptionPanel,
	body.engineer-mode.engineer-right-open .toolOptionPanel {
		right: calc(7px + var(--eng-safe-right)) !important;
		bottom: calc(7px + var(--eng-safe-bottom));
		left: calc(var(--eng-mobile-dock-h) + var(--eng-safe-left) + 7px) !important;
		max-height: calc(100dvh - var(--eng-docbar-h) - var(--eng-safe-bottom) - 14px);
	}

	.eng-mobile-sheet-items {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}

	.eng-command-bar {
		right: calc(6px + var(--eng-safe-right));
		bottom: calc(6px + var(--eng-safe-bottom) + var(--eng-keyboard-inset));
		left: calc(var(--eng-mobile-dock-h) + var(--eng-safe-left) + 6px);
	}

	.eng-command-reference {
		padding:
			calc(var(--eng-docbar-h) + 5px)
			calc(5px + var(--eng-safe-right))
			calc(5px + var(--eng-safe-bottom))
			calc(var(--eng-mobile-dock-h) + var(--eng-safe-left) + 5px);
	}
}

@media (max-width: 700px) and (max-height: 520px) and (orientation: landscape) {
	.eng-mobile-sheet-items {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}


/* Sheetzer engineering-only deployment overrides */
.eng-brand-copy strong { letter-spacing: .09em; }
.editor-persona-switch button:not(.is-active) { display: none !important; }
#engineerCollaborationMount { display: none !important; }