body {
	margin: 0;
	padding: 0;
	color: rgba(255, 255, 255, 0.87);
	background-color: #000000;
	font-family:
		system-ui,
		-apple-system,
		sans-serif;
}

/* ------------------------------------------------------------------ */
/* Layout                                                              */
/* ------------------------------------------------------------------ */

#app {
	width: 100%;
	height: 100vh;
	overflow: hidden;
	display: flex;
	position: relative;
}

/* ------------------------------------------------------------------ */
/* Sidebar                                                             */
/* ------------------------------------------------------------------ */

#sidebar-navigation {
	width: 260px;
	min-width: 260px;
	height: 100vh;
	overflow-y: auto;
	background-color: #0d0d0d;
	border-right: 1px solid #222;
	padding: 0;
	box-sizing: border-box;
	display: flex;
	flex-direction: column;
	transition:
		margin-left 0.25s ease,
		opacity 0.25s ease;
}

/* Collapse state — sidebar slides out */
.sidebar-collapsed #sidebar-navigation {
	margin-left: -260px;
	opacity: 0;
	pointer-events: none;
}

/* ---- Header (logo + brand) ---- */

.sidebar-header {
	padding: 20px 16px 12px;
	border-bottom: 1px solid #1a1a1a;
}

.sidebar-logo-link {
	display: flex;
	align-items: center;
	gap: 10px;
	text-decoration: none;
	color: #fff;
}

.sidebar-logo-link:hover {
	opacity: 0.85;
}

.sidebar-logo {
	width: 36px;
	height: 36px;
	border-radius: 6px;
	object-fit: contain;
}

.sidebar-brand {
	font-size: 15px;
	font-weight: 600;
	letter-spacing: 0.3px;
	color: #e0e0e0;
}

/* ---- External links ---- */

.sidebar-links {
	display: flex;
	flex-direction: column;
	gap: 2px;
	padding: 12px 16px;
	border-bottom: 1px solid #1a1a1a;
}

.sidebar-links a {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 5px 8px;
	border-radius: 4px;
	font-size: 12px;
	color: rgba(255, 255, 255, 0.5);
	text-decoration: none;
	transition:
		background-color 0.15s,
		color 0.15s;
}

.sidebar-link-icon {
	width: 14px;
	height: 14px;
	flex-shrink: 0;
	stroke: currentColor;
}

.sidebar-links a:hover {
	background-color: #1a1a1a;
	color: rgba(255, 255, 255, 0.85);
}

/* ---- Demo list ---- */

.sidebar-demos {
	flex: 1;
	overflow-y: auto;
	padding: 12px 16px;
}

.sidebar-demos h2 {
	margin: 0 0 10px 0;
	font-size: 11px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 1px;
	color: rgba(255, 255, 255, 0.35);
}

.sidebar-demos ul {
	list-style: none;
	margin: 0;
	padding: 0;
}

.sidebar-demos li {
	margin-bottom: 2px;
}

.sidebar-demos button {
	width: 100%;
	padding: 7px 10px;
	background: none;
	border: 1px solid transparent;
	border-radius: 4px;
	color: rgba(255, 255, 255, 0.6);
	font-size: 13px;
	text-align: left;
	cursor: pointer;
	transition:
		background-color 0.15s,
		border-color 0.15s,
		color 0.15s;
}

.sidebar-demos button:hover {
	background-color: #181818;
	border-color: #333;
	color: #fff;
}

.sidebar-demos button.active {
	background-color: #142a42;
	border-color: #4a9eff;
	color: #fff;
}

/* ------------------------------------------------------------------ */
/* Collapse toggle button                                              */
/* ------------------------------------------------------------------ */

#sidebar-collapse-toggle {
	position: absolute;
	top: 10px;
	left: 260px;
	z-index: 100;
	width: 24px;
	height: 24px;
	border: 1px solid #333;
	border-radius: 4px;
	background: #111;
	color: rgba(255, 255, 255, 0.5);
	font-size: 11px;
	line-height: 1;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition:
		left 0.25s ease,
		background-color 0.15s;
}

#sidebar-collapse-toggle:hover {
	background: #222;
	color: #fff;
}

.sidebar-collapsed #sidebar-collapse-toggle {
	left: 6px;
}

/* ------------------------------------------------------------------ */
/* Canvas                                                              */
/* ------------------------------------------------------------------ */

#pixi-container {
	flex: 1;
	height: 100vh;
	overflow: hidden;
}

/* ------------------------------------------------------------------ */
/* PixiJS watermark                                                    */
/* ------------------------------------------------------------------ */

#pixi-watermark {
	position: fixed;
	bottom: 8px;
	right: 12px;
	font-size: 13px;
	color: rgba(255, 255, 255, 0.39);
	text-decoration: none;
	letter-spacing: 0.3px;
	pointer-events: auto;
	transition: color 0.2s;
	z-index: 50;
}

#pixi-watermark:hover {
	color: rgba(255, 255, 255, 0.889);
}

/* ------------------------------------------------------------------ */
/* Blueprint preview button                                            */
/* ------------------------------------------------------------------ */

#blueprint-preview-button {
	position: absolute;
	top: 12px;
	left: 50%;
	z-index: 60;
	width: 36px;
	height: 36px;
	border: 1px solid #444;
	border-radius: 6px;
	background: rgba(17, 17, 17, 0.85);
	color: #fff;
	font-size: 18px;
	line-height: 1;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition:
		background-color 0.15s,
		border-color 0.15s;
}

#blueprint-preview-button:hover {
	background: rgba(34, 34, 34, 0.95);
	border-color: #4a9eff;
}

/* Thumbnail tooltip */
#blueprint-preview-thumbnail {
	display: none;
	position: absolute;
	top: calc(100% + 8px);
	left: 0;
	background: rgba(10, 10, 10, 0.95);
	border: 1px solid #444;
	border-radius: 6px;
	padding: 6px;
	box-shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
	pointer-events: none;
	flex-direction: column;
	align-items: center;
	gap: 4px;
	min-width: 220px;
}

#blueprint-preview-thumbnail.visible {
	display: flex;
}

#blueprint-preview-thumbnail img {
	max-width: 260px;
	max-height: 180px;
	border-radius: 4px;
	object-fit: contain;
}

#blueprint-preview-thumbnail span {
	font-size: 10px;
	color: rgba(255, 255, 255, 0.5);
	letter-spacing: 0.3px;
}