/* ---- CASCADE LAYER ------------------------------------------------------
 *
 * Everything the kit ships sits in ONE layer named `overscan`, so a consumer's
 * own CSS beats it without a specificity fight and without !important. That is
 * close to mandatory for a distributed kit: an app should be able to restyle a
 * panel by writing a plain rule.
 *
 * ⚠️ ONE layer, deliberately, NOT a sub-layer per file. Sub-layers look tidier
 * and would silently reorder the kit against itself: layer order beats
 * specificity, so a high-specificity rule in an early file that currently wins
 * would start losing to a low-specificity rule in a later one. A single layer
 * preserves source order exactly, so nothing inside the kit changes.
 *
 * Unlayered author CSS wins over all of it. That is the point.
 */

@layer overscan {
/* Analog dial. Every mark takes its colour from the tokens, which is the whole
 * argument against drawing this on a canvas. */

ov-gauge {
  position: relative;
  display: block;
  aspect-ratio: 1;
  inline-size: var(--ov-gauge-size, 150px);
}

.ov-gauge__svg { inline-size: 100%; block-size: 100%; display: block; }

.ov-gauge__arc {
  fill: none;
  stroke: var(--ov-line-strong);
  stroke-width: 1.2;
}

.ov-gauge__tick { stroke: var(--ov-line-strong); stroke-width: 0.9; }

.ov-gauge__ticklabel {
  fill: var(--ov-faint);
  font-family: var(--ov-font-mono);
  font-size: 4.4px;
  text-anchor: middle;
}

.ov-gauge__needle {
  stroke: var(--ov-accent);
  stroke-width: 1.6;
  stroke-linecap: butt;
}

.ov-gauge__hub { fill: var(--ov-accent); }

.ov-gauge__read {
  position: absolute;
  inset-block-end: 16%;
  inset-inline: 0;
  text-align: center;
  font-size: var(--ov-size-4);
  color: var(--ov-ink);
  font-variant-numeric: tabular-nums;
}

.ov-gauge__unit {
  position: absolute;
  inset-block-end: 6%;
  inset-inline: 0;
  text-align: center;
  font-size: var(--ov-size-1);
  letter-spacing: 1.2px;
  color: var(--ov-faint);
}

/* Pinned, and said out loud. A needle resting quietly on the limit reads as a
 * legitimate maximum, which is the same lie as a clipped peak on a chart. */
ov-gauge[data-ov-over] .ov-gauge__needle,
ov-gauge[data-ov-over] .ov-gauge__hub {
  stroke: var(--ov-alarm);
  fill: var(--ov-alarm);
}
ov-gauge[data-ov-over] .ov-gauge__read { color: var(--ov-alarm); }
ov-gauge[data-ov-over]::after {
  content: "over range";
  position: absolute;
  inset-block-start: 6%;
  inset-inline: 0;
  text-align: center;
  font-size: var(--ov-size-1);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--ov-alarm);
}

/* No needle at all. A needle at zero is a reading. */
ov-gauge[data-ov-refusal]::after {
  content: attr(data-ov-refusal);
  position: absolute;
  inset-block-start: 44%;
  inset-inline: 0;
  text-align: center;
  font-size: var(--ov-size-1);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--ov-alarm);
}
}