* { box-sizing: border-box; }

html, body {
	margin: 0;
	padding: 0;
	height: 100%;
	font: 13px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
	color: #222;
	background: #ececec;
}

#app {
	display: flex;
	height: 100%;
}

/* ---------------------------------------------------------------- sidebar */

#sidebar {
	width: 260px;
	min-width: 260px;
	padding: 8px 10px 20px;
	overflow-y: auto;
	background: #f4f4f4;
	border-right: 1px solid #c8c8c8;
}

#sidebar h1 {
	font-size: 15px;
	margin: 4px 0 10px;
}

fieldset {
	border: 1px solid #d2d2d2;
	border-radius: 4px;
	margin: 0 0 10px;
	padding: 6px 8px 8px;
	background: #fff;
	/* fieldsets default to min-content width, which would not shrink here */
	min-width: 0;
	min-inline-size: 0;
}

legend {
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: .04em;
	color: #666;
	padding: 0 4px;
}

#sidebar label {
	display: block;
	margin: 3px 0;
}

#sidebar label.row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 6px;
}

#sidebar label.row select,
#sidebar label.row input[type=range] {
	flex: 1 1 auto;
	width: 0;         /* let flex size them, never their content */
	min-width: 0;
	max-width: 100%;
}

#sidebar select {
	font: inherit;
	text-overflow: ellipsis;
}

button {
	display: block;
	width: 100%;
	margin: 3px 0;
	padding: 4px 6px;
	font: inherit;
	background: #fdfdfd;
	border: 1px solid #bbb;
	border-radius: 3px;
	cursor: pointer;
}

button:hover { background: #f0f0f0; }
button:active { background: #e4e4e4; }

input[type=text] {
	width: 100%;
	padding: 3px 5px;
	font: inherit;
	border: 1px solid #bbb;
	border-radius: 3px;
}

.hint {
	font-size: 11px;
	color: #666;
	margin: 6px 0 0;
}

.copyright {
	margin: 10px 0 0;
	font-size: 10px;
	color: #888;
}

.hint code {
	font-size: 10px;
	background: #eee;
	padding: 0 2px;
	border-radius: 2px;
}

/* ------------------------------------------------------------------- main */

#main {
	flex: 1 1 auto;
	display: flex;
	flex-direction: column;
	min-width: 0;
}

#statusbar {
	padding: 4px 8px;
	font-size: 12px;
	background: #f4f4f4;
	border-bottom: 1px solid #c8c8c8;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

#canvasWrap {
	position: relative;
	flex: 1 1 auto;
	min-height: 0;
	background: #fff;
}

#canvasWrap.dragover { outline: 3px dashed #4a90d9; outline-offset: -6px; }

#display {
	display: block;
	width: 100%;
	height: 100%;
	cursor: crosshair;
}

#dropHint {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #999;
	pointer-events: none;
}

#dropHint.hidden { display: none; }

#infoWrap {
	height: 170px;
	min-height: 170px;
	overflow: auto;
	border-top: 1px solid #c8c8c8;
	background: #fbfbfb;
}

/* ----------------------------------------------------------------- dialog */

#warnDialog {
	max-width: 520px;
	padding: 14px 16px 16px;
	border: 1px solid #b0b0b0;
	border-radius: 6px;
	box-shadow: 0 8px 30px rgba(0, 0, 0, .25);
	font: inherit;
	color: inherit;
}

#warnDialog::backdrop { background: rgba(0, 0, 0, .35); }

#warnDialog h2 {
	margin: 0 0 8px;
	font-size: 14px;
}

#warnDialog p { margin: 0 0 8px; }

#warnList {
	margin: 0 0 10px;
	padding: 6px 8px;
	max-height: 220px;
	overflow: auto;
	background: #f6f6f6;
	border: 1px solid #e0e0e0;
	border-radius: 3px;
	font: 11px/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	white-space: pre;
}

#warnDialog button { width: auto; min-width: 90px; margin-left: auto; }

#info {
	margin: 0;
	padding: 6px 8px;
	font: 11px/1.35 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	white-space: pre;
}