.chart-lock {
  display: flex;
  align-items: center;
  gap: 8px;
  font: 600 12px/1.2 "IBM Plex Sans", system-ui, sans-serif;
  letter-spacing: .04em;
  color: var(--mute);
  cursor: pointer;
  user-select: none;
}
.chart-lock input {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  margin: 0;
}
.tape-head:has(.views) .chart-lock {
  flex: 1 1 100%;
  margin-top: 8px;
}
.chart-hint {
  margin: 0 0 10px;
  color: var(--mute);
  font-size: 12px;
  letter-spacing: .04em;
}
.chart-frame {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--hair);
  background: var(--chart, transparent);
}
.chart-frame.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent);
  touch-action: none;
}
/* touch-action is not inherited; the canvas is what the finger hits. */
.chart-frame.is-active .chart,
.chart-frame.is-active canvas {
  touch-action: none;
}
.chart-frame .chart { border-radius: 0; }
.chart-shield {
  position: absolute;
  inset: 0;
  z-index: 2;
  border: 0;
  padding: 0;
  border-radius: inherit;
  background: transparent;
  cursor: pointer;
  touch-action: pan-y;
}
.chart-frame.is-active .chart-shield { display: none; }
.chart-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 3;
  pointer-events: none;
  font: 700 10px/1 "IBM Plex Sans", system-ui, sans-serif;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mute);
  background: color-mix(in srgb, var(--canvas, #07090d) 72%, transparent);
  border: 1px solid var(--hair);
  border-radius: 999px;
  padding: 6px 9px;
}
.chart-frame.is-active .chart-badge {
  color: var(--accent);
  border-color: var(--accent);
}
.views button[aria-pressed="true"],
.views button.on {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow:
    0 0 0 2px color-mix(in srgb, var(--accent) 45%, #fff),
    0 0 14px color-mix(in srgb, var(--accent) 55%, transparent);
}
html:not(.day) .views button[aria-pressed="true"],
html:not(.day) .views button.on { color: #14120c; }
html.day .views button[aria-pressed="true"],
html.day .views button.on { color: #fff; }