/* ==========================================================================
   d3-charts.css
   Styling fuer die D3.js-Charts aus d3-charts.js. Ergaenzt tangle-style.css
   (gleiche CSS-Variablen --primary/--text/--border/... => Dark Mode und
   Farbschema werden automatisch übernommen, ohne dass D3 Farben per JS neu
   berechnen muss - anders als beim Google-Chart-Ansatz).
   ========================================================================== */

.d3-chart {
	width: 100%;
	height: auto;
	display: block;
	overflow: visible;
}

.d3-negative-warning {
	display: none;
	align-items: center;
	gap: 0.5rem;
	margin-bottom: 0.75rem;
	padding: 0.55rem 0.85rem;
	background: var(--accent-red);
	color: #fff;
	border-radius: var(--radius-md);
	font-size: 0.85rem;
	font-weight: 700;
}

.d3-negative-warning.is-visible {
	display: flex;
}

.d3-axis {
	color: var(--text-muted);
	font-size: 11px;
}

.d3-axis path.domain {
	stroke: var(--border);
}

.d3-axis .tick line {
	stroke: var(--border);
}

.d3-axis-label {
	fill: var(--text-muted);
	font-size: 0.72rem;
	font-weight: 600;
}

.d3-grid-y line {
	stroke: var(--border);
	stroke-dasharray: 2 4;
	opacity: 0.7;
}

.d3-band-critical {
	fill: var(--accent-red);
	opacity: 0.12;
}

.d3-band-warning {
	fill: var(--accent-amber, #d98324);
	opacity: 0.14;
}

/* Warnrot fuer unrealistische negative Bestaende (alles unter der x-Achse) */
.d3-band-negative {
	fill: var(--accent-red);
	opacity: 0.22;
}

.d3-zero-line {
	stroke: var(--accent-red);
	stroke-width: 1.5px;
	stroke-dasharray: none;
	opacity: 0.9;
}

.d3-line {
	fill: none;
	stroke-width: 2.5px;
}

.d3-point {
	stroke: var(--surface);
	stroke-width: 1.5px;
	cursor: pointer;
	transition: r 0.15s ease;
}

.d3-point:hover {
	r: 5.5;
}

.d3-marker {
	fill: var(--accent-green);
	stroke: var(--surface);
	stroke-width: 1px;
}

.d3-legend {
	display: flex;
	flex-wrap: wrap;
	gap: 1rem;
	margin-top: 0.5rem;
	font-size: 0.78rem;
	color: var(--text-muted);
}

.d3-legend-item {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
}

.d3-legend-item i {
	display: inline-block;
	width: 10px;
	height: 10px;
	border-radius: 3px;
}

.d3-tooltip {
	position: absolute;
	pointer-events: none;
	background: var(--text);
	color: var(--surface);
	padding: 0.4rem 0.65rem;
	border-radius: 8px;
	font-size: 0.75rem;
	line-height: 1.4;
	box-shadow: var(--shadow);
	opacity: 0;
	transform: translateY(4px);
	transition: opacity 0.12s ease, transform 0.12s ease;
	z-index: 20;
	white-space: nowrap;
}

.d3-tooltip.is-visible {
	opacity: 1;
	transform: translateY(0);
}

.d3-bar-label {
	fill: var(--text);
	font-size: 0.85rem;
	font-weight: 700;
	font-variant-numeric: tabular-nums;
}

.d3-bar-cat-label {
	fill: var(--text-muted);
	font-size: 0.68rem;
}

.d3-bar {
	rx: 4px;
}