* {
	box-sizing: border-box;
	margin: 0;
	padding: 0
}

body {
	font-family: sans-serif;
	background: #f5f4f0;
	min-height: 100vh;
	display: flex;
	flex-direction: column
}

#ui {
	display: flex;
	gap: 8px;
	padding: 8px;
	flex-wrap: wrap;
	align-items: center;
	background: #fff;
	border-bottom: 1px solid #ddd
}

.comp-btn {
	padding: 5px 10px;
	font-size: 12px;
	border: 1px solid #ccc;
	border-radius: 6px;
	background: #fff;
	color: #333;
	cursor: pointer
}

.comp-btn:hover {
	background: #f0f0f0
}

.comp-btn.active {
	background: #dbeeff;
	color: #185fa5;
	border-color: #378add
}

.group-label {
	font-size: 11px;
	color: #999;
	font-weight: 500
}

.sep {
	width: 1px;
	height: 18px;
	background: #ddd;
	display: inline-block;
	vertical-align: middle
}

#power-info {
	font-size: 11px;
	color: #1d9e75;
	font-weight: 600;
	margin-left: auto;
	white-space: nowrap
}

#status {
	font-size: 12px;
	color: #888
}

#clear-btn {
	padding: 5px 10px;
	font-size: 12px;
	border: 1px solid #ccc;
	border-radius: 6px;
	background: #fff;
	color: #888;
	cursor: pointer
}

#clear-btn:hover {
	color: #c0392b;
	border-color: #c0392b;
	background: #fff5f5
}

#del-btn,
#edit-btn {
	padding: 5px 10px;
	font-size: 12px;
	border: 1px solid #ccc;
	border-radius: 6px;
	background: #fff;
	color: #888;
	cursor: pointer
}

#del-btn:hover {
	color: #c0392b;
	border-color: #c0392b
}

#edit-btn:hover {
	color: #37dd69;
	border-color: #37dd69;
}

#edit-btn:active {
	background: #ffe8e8;
	color: #37dd69;
	border-color: #37dd69;
}

#del-btn.active {
	background: #ffe8e8;
	color: #a32d2d;
	border-color: #a32d2d
}

canvas {
	display: block;
	cursor: crosshair;
	flex: 1
}

#prop-editor {
	display: none;
	position: absolute;
	background: #fff;
	border: 1px solid #ccc;
	border-radius: 8px;
	box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
	padding: 10px 12px;
	min-width: 180px;
	z-index: 100;
	font-size: 12px
}

#prop-editor.visible {
	display: block
}

#prop-editor h4 {
	margin: 0 0 8px;
	font-size: 13px;
	color: #333;
	border-bottom: 1px solid #eee;
	padding-bottom: 5px
}

#prop-editor label {
	display: flex;
	align-items: center;
	gap: 6px;
	margin-bottom: 6px;
	color: #555
}

#prop-editor input,
#prop-editor select {
	flex: 1;
	padding: 3px 6px;
	border: 1px solid #ccc;
	border-radius: 4px;
	font-size: 12px;
	width: 80px
}

#prop-editor input:focus {
	outline: none;
	border-color: #378add
}

#prop-editor .prop-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 6px
}

#prop-editor .prop-label {
	color: #666;
	font-size: 11px;
	min-width: 70px
}

#prop-editor .prop-close {
	position: absolute;
	top: 6px;
	right: 8px;
	cursor: pointer;
	color: #aaa;
	font-size: 16px;
	line-height: 1;
	border: none;
	background: none
}

#prop-editor .prop-close:hover {
	color: #333
}