:root {
	--led-off: #555555;
	--led-green: #2ecc71;
	--led-green-dim: #1b5e36;
	--led-orange: #e67e22;
	--led-orange-dim: #7a4111;
}

body {
	font-family: sans-serif;
	margin: 0;
	padding: 0.5em 1em 4em 1em;
	color: #222;
}

header#connection-bar {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 1em;
	padding-bottom: 0.5em;
	border-bottom: 1px solid #ccc;
}

.status-connected { color: #2ecc71; font-weight: bold; }
.status-disconnected { color: #999; }

#sud-controls {
	display: flex;
	align-items: center;
	gap: 0.5em;
	padding-left: 1em;
	border-left: 1px solid #ccc;
}

#lcd-panel {
	display: grid;
	grid-template-columns: 10em 6em 6em;
	gap: 0.2em 1em;
	margin: 1em 0;
	max-width: 30em;
}

.lcd-row { display: contents; }
.lcd-header { font-weight: bold; }
.lcd-label { color: #555; }
.lcd {
	font-family: monospace;
	font-size: 1.1em;
	background: #fff;
	border: 1px solid #2ecc71;
	padding: 0.1em 0.3em;
	text-align: right;
}

nav#tabs {
	margin-top: 1em;
	border-bottom: 1px solid #ccc;
}
.tab-btn {
	background: none;
	border: 1px solid #ccc;
	border-bottom: none;
	padding: 0.4em 1em;
	cursor: pointer;
	position: relative;
	top: 1px;
}
.tab-btn.active {
	background: #fff;
	font-weight: bold;
	border-bottom: 1px solid #fff;
}

.tab-content { display: none; padding: 1em 0; }
.tab-content.active { display: block; }

.panel {
	border: 1px solid #ddd;
	border-radius: 4px;
	padding: 0.6em 1em;
	margin-bottom: 0.8em;
	max-width: 30em;
}
.panel h3 { margin: 0 0 0.4em 0; }
.panel label {
	display: flex;
	align-items: center;
	gap: 0.6em;
	margin: 0.3em 0;
}
.panel input[type="range"] { flex: 1; }

.hidden { display: none; }

#sud-controls button:disabled { opacity: 0.5; cursor: default; }

#step-plates { display: flex; flex-direction: column; gap: 0.5em; max-width: 36em; }

.step-plate {
	border: 1px solid #ccc;
	border-radius: 4px;
	padding: 0.5em 0.8em;
	display: grid;
	grid-template-columns: 1.4em 1fr auto;
	gap: 0.2em 0.6em;
	align-items: center;
}
.step-plate .led {
	width: 14px;
	height: 14px;
	border-radius: 50%;
	background: var(--led-off);
	border: 1px solid #222;
}
.step-plate .title {
	font-weight: bold;
	grid-column: 2;
}
.step-plate .remaining {
	font-weight: bold;
	text-align: right;
}
.step-plate .field {
	color: #555;
	font-size: 0.95em;
}
.step-plate .span2 { grid-column: span 2; }

#sud-message-dialog {
	border: 1px solid #ccc;
	border-radius: 4px;
	padding: 1em 1.4em;
	max-width: 24em;
}
#sud-message-dialog::backdrop { background: rgba(0, 0, 0, 0.3); }
#sud-message-dialog form { margin-top: 1em; text-align: right; }

footer {
	position: fixed;
	bottom: 0;
	left: 0;
	right: 0;
	background: #f0f0f0;
	border-top: 1px solid #ccc;
	padding: 0.3em 1em;
	display: flex;
	justify-content: space-between;
	font-size: 0.9em;
}