/*
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
 🆂🅻🅸🅳🅴🆁 (shadow)
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
- https://www.w3.org/WAI/ARIA/apg/patterns/slider-multithumb/

shadcn-flavoured: a thin neutral rail, a high-contrast (primary) filled
indicator, and circular white thumbs with a primary border + focus ring. The
thumb's hit box is ≥24px (WCAG 2.5.8) while the visible disc stays smaller.
*/

:host {
  --track-size: 0.375rem;
  --thumb-size: 1.125rem;
  /* The hit target never drops below 24px even though the disc is smaller. */
  --_thumb-hit: 1.5rem;

  --track-color: var(--l-color-bg-fill-neutral-subtle);
  /* The active fill reads the shared form-control accent — same token the
     switch / checkbox / radio use — so the slider stays consistent and
     responds to a themed `--l-form-control-activated-color`. */
  --indicator-color: var(--l-form-control-activated-color);
  --thumb-color: var(--l-color-surface);

  display: block;
  inline-size: 100%;
}

:host([size='xs']) {
  --track-size: 0.25rem;
  --thumb-size: 0.875rem;
}
:host([size='sm']) {
  --track-size: 0.3125rem;
  --thumb-size: 1rem;
}
:host([size='lg']) {
  --track-size: 0.4375rem;
  --thumb-size: 1.25rem;
}
:host([size='xl']) {
  --track-size: 0.5rem;
  --thumb-size: 1.5rem;
}

:host([disabled]) {
  opacity: 0.5;
  pointer-events: none;
}

.base {
  position: relative;
  display: flex;
  align-items: center;
  inline-size: 100%;
  min-block-size: var(--_thumb-hit);
  touch-action: none;
}

.track {
  position: relative;
  inline-size: 100%;
  block-size: var(--track-size);
  background-color: var(--track-color);
  border-radius: 999px;
}

.indicator {
  position: absolute;
  inset-block: 0;
  inset-inline-start: var(--start, 0%);
  inset-inline-end: calc(100% - var(--end, 0%));
  background-color: var(--indicator-color);
  border-radius: inherit;
}

.thumb {
  position: absolute;
  inset-inline-start: var(--pos, 0%);
  inset-block-start: 50%;
  inline-size: var(--_thumb-hit);
  block-size: var(--_thumb-hit);
  translate: -50% -50%;
  display: grid;
  place-items: center;
  cursor: grab;
  touch-action: none;
}

.thumb::before {
  content: '';
  inline-size: var(--thumb-size);
  block-size: var(--thumb-size);
  border-radius: 50%;
  background-color: var(--thumb-color);
  border: 2px solid var(--indicator-color);
  box-shadow: var(--l-shadow-sm);
  transition:
    box-shadow 0.15s ease,
    scale 0.1s ease;
}

.thumb:active {
  cursor: grabbing;
}

.thumb:focus-visible {
  outline: none;
}

.thumb:focus-visible::before {
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--l-focus-ring) 45%, transparent);
}

/*
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
 🆃🅾🅾🅻🆃🅸🅿  (with-tooltip)
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Reuses the l-tooltip bubble tokens. Shown only when the host has `with-tooltip`
and the thumb is keyboard-focused or being dragged (`[data-active]`).
*/

.tooltip {
  position: absolute;
  inset-block-end: calc(100% + 0.25rem);
  inset-inline-start: 50%;
  translate: -50% 0;
  padding: 0.125rem 0.4rem;
  border-radius: 4px;
  background: var(--l-tooltip-background-color);
  color: oklch(from var(--l-tooltip-background-color) calc(0.59 - 0.41 * sign(l - 0.5)) 0 0);
  font-size: 0.75rem;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  scale: 0.85;
  transition:
    opacity 0.12s ease,
    scale 0.12s ease;
}

@supports (color: contrast-color(red vs black, white)) {
  .tooltip {
    color: contrast-color(var(--l-tooltip-background-color) vs #111827, #fff to AA);
  }
}

/* Little caret under the bubble. */
.tooltip::after {
  content: '';
  position: absolute;
  inset-block-start: 100%;
  inset-inline-start: 50%;
  translate: -50% -1px;
  border: 4px solid transparent;
  border-block-start-color: var(--l-tooltip-background-color);
}

:host([with-tooltip]) .thumb:focus-visible .tooltip,
:host([with-tooltip]) .thumb[data-active] .tooltip {
  opacity: 1;
  scale: 1;
}

@media (prefers-reduced-motion: reduce) {
  .tooltip {
    transition-duration: 0ms;
  }
}

/*
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
 🆅🅴🆁🆃🅸🅲🅰🅻
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
The same `--start` / `--end` / `--pos` percentages (low→high) drive the block
axis instead of the inline axis; the value increases upward. Height defaults to
`--length` (override per instance).
*/

:host([orientation='vertical']) {
  --length: 11rem;
  display: inline-block;
  inline-size: auto;
}

:host([orientation='vertical']) .base {
  flex-direction: column;
  inline-size: var(--_thumb-hit);
  min-inline-size: var(--_thumb-hit);
  block-size: var(--length);
}

:host([orientation='vertical']) .track {
  inline-size: var(--track-size);
  block-size: 100%;
}

:host([orientation='vertical']) .indicator {
  inset-block: auto;
  inset-inline: 0;
  inset-block-end: var(--start, 0%);
  inset-block-start: calc(100% - var(--end, 0%));
}

:host([orientation='vertical']) .thumb {
  inset-inline-start: 50%;
  inset-block-start: auto;
  inset-block-end: var(--pos, 0%);
  translate: -50% 50%;
}

/* In vertical mode the bubble sits to the inline-start with a side caret. */
:host([orientation='vertical']) .tooltip {
  inset-block-end: auto;
  inset-block-start: 50%;
  inset-inline-start: auto;
  inset-inline-end: calc(100% + 0.25rem);
  translate: 0 -50%;
}

:host([orientation='vertical']) .tooltip::after {
  inset-block-start: 50%;
  inset-inline-start: 100%;
  translate: -1px -50%;
  border-block-start-color: transparent;
  border-inline-start-color: var(--l-tooltip-background-color);
}

@media (hover: hover) {
  .thumb:hover::before {
    scale: 1.08;
  }
}

@media (prefers-reduced-motion: reduce) {
  .thumb::before {
    transition-duration: 0ms;
  }
}