#plot {
  width: 100%;
  height: 100%;
  background:
    radial-gradient(
      circle at 22% 18%,
      color-mix(in srgb, var(--card) 94%, white 6%),
      color-mix(in srgb, var(--card) 88%, var(--panel) 12%) 46%,
      color-mix(in srgb, var(--card) 72%, var(--panel) 28%) 100%
    );
  border: none;
  border-radius: 28px;
  overflow: hidden;
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--card) 72%, white 28%),
    inset 0 -10px 24px color-mix(in srgb, var(--border) 8%, transparent 92%);
}

.plot-empty-state {
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: 24px;
  color: var(--muted);
  background:
    radial-gradient(
      circle at 22% 18%,
      color-mix(in srgb, var(--card) 94%, white 6%),
      color-mix(in srgb, var(--card) 88%, var(--panel) 12%) 46%,
      color-mix(in srgb, var(--card) 72%, var(--panel) 28%) 100%
    );
}

.plot-empty-state.is-hidden {
  display: none;
}

.plot-overlay {
  position: absolute;
  z-index: 5;
}

/* Loading spinner */
.plot-loading {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: color-mix(in srgb, var(--card) 72%, transparent 28%);
  backdrop-filter: blur(8px);
  border-radius: 28px;
}

.plot-loading.is-hidden {
  display: none;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(223, 75, 97, 0.14);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: zif-spin 0.72s linear infinite;
}

.spinner-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
}

@keyframes zif-spin {
  to { transform: rotate(360deg); }
}

.composition-panel {
  pointer-events: auto;
  top: 18px;
  right: 18px;
  width: min(380px, calc(100% - 36px));
  max-height: calc(100% - 36px);
  overflow-y: auto;
  padding: 16px 16px 14px;
  border-radius: 22px;
  background: color-mix(in srgb, var(--card) 94%, transparent 6%);
  backdrop-filter: blur(18px);
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--border) 76%);
  box-shadow: var(--shadow-lg);
}

.composition-panel.is-hidden {
  display: none;
}

.composition-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.composition-panel-eyebrow {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}

.composition-panel-title {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text);
}

.composition-panel-copy {
  margin: 0 0 14px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

.composition-panel-close {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--border) 82%);
  background: color-mix(in srgb, var(--card) 86%, transparent 14%);
  color: var(--accent);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  flex: 0 0 auto;
}

.composition-grid {
  grid-template-columns: 1fr 1fr;
}

.composition-field-wide {
  grid-column: 1 / -1;
}

.composition-note {
  min-height: 0;
}

.composition-actions {
  margin-top: 2px;
}

.ternary-inset {
  right: 14px;
  top: 14px;
  width: 170px;
  height: 145px;
  background: color-mix(in srgb, var(--card) 92%, transparent 8%);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  padding: 6px;
}

.ternary-inset-svg {
  width: 100%;
  height: 100%;
  display: block;
}

.tri-outline {
  fill: color-mix(in srgb, var(--card) 50%, transparent 50%);
  stroke: color-mix(in srgb, var(--text) 45%, transparent 55%);
  stroke-width: 1.5;
}

.tri-label {
  font-size: 14px;
  fill: var(--text);
  font-family: Inter, Arial, sans-serif;
}

.tri-label-left,
.tri-label-right {
  dominant-baseline: middle;
}

.plot-phase-legend {
  pointer-events: auto;
  left: 22px;
  right: auto;
  bottom: 22px;
  top: auto;
  max-width: calc(100% - 44px);

  display: flex;
  flex-direction: column;
  gap: 0;

  background: color-mix(in srgb, var(--card) 90%, transparent 10%);
  backdrop-filter: blur(10px);
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent 20%);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 10px 14px;
  transition: padding 0.18s ease;
}

.plot-phase-legend.is-hidden {
  display: none;
}

/* Header row: title + toggle button */
.plot-phase-legend-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  cursor: default;
}

.plot-phase-legend-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.plot-phase-legend-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  border-radius: 4px;
  transition: color var(--transition-fast), background var(--transition-fast);
  flex: 0 0 auto;
}

.plot-phase-legend-toggle:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--panel) 80%, transparent 20%);
}

.plot-phase-legend-toggle svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

/* Collapsed state: rotate chevron and hide body */
.plot-phase-legend.is-collapsed .plot-phase-legend-toggle svg {
  transform: rotate(-90deg);
}

.plot-phase-legend-body {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 8px;
  overflow: hidden;
  transition: margin-top 0.18s ease;
}

.plot-phase-legend.is-collapsed .plot-phase-legend-body {
  display: none;
  margin-top: 0;
}

.plot-phase-legend-row {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
}

.plot-phase-legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  flex: 0 0 10px;
  border: 1px solid color-mix(in srgb, var(--text) 12%, transparent 88%);
}

.empty-state-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 100%;
  padding: 40px 24px;
  text-align: center;
  color: var(--muted);
}

.empty-state-icon {
  width: 34px;
  height: 34px;
  color: var(--accent);
  opacity: 0.88;
}

.empty-state-title {
  font-size: 16px;
  color: var(--text);
  font-weight: 600;
}

.empty-state-body {
  max-width: 560px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.empty-state-diagnostic-grid {
  display: grid;
  width: min(100%, 760px);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  text-align: left;
  font-size: 13px;
  color: var(--muted);
}

.empty-state-diagnostic-grid strong {
  color: var(--text);
}

.empty-state-error {
  color: var(--danger);
}

.empty-state-error .empty-state-title,
.empty-state-error .empty-state-body,
.empty-state-error .empty-state-icon {
  color: var(--danger);
}