:root {
  --a11y-paper: var(--color-paper, var(--paper, #fcfbf8));
  --a11y-ink: var(--color-ink, var(--ink, #0b1b2b));
  --a11y-soft: var(--color-ink-soft, var(--ink-soft, #304454));
  --a11y-line: var(--color-line, var(--line, #d6ddd9));
  --a11y-active: var(--color-forest, var(--forest, #17364d));
  --a11y-brass: var(--color-brass, var(--brass, #a98747));
}

.a11y-control { position: relative; flex: 0 0 auto; }
.a11y-control .content-sr-only,
.a11y-control .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}
.a11y-control__trigger {
  position: relative;
  display: inline-grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--a11y-ink) 14%, transparent);
  border-radius: .25rem;
  background: transparent;
  color: var(--a11y-soft);
  cursor: pointer;
}
.a11y-control__trigger svg { width: 1.125rem; height: 1.125rem; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.a11y-control__trigger:hover { border-color: color-mix(in srgb, var(--a11y-ink) 34%, transparent); color: var(--a11y-ink); }
.a11y-control__trigger:focus-visible,
.a11y-control__panel button:focus-visible { outline: 2px solid var(--a11y-brass); outline-offset: 2px; }

.a11y-control__panel {
  position: absolute;
  z-index: 60;
  top: calc(100% + .65rem);
  right: 0;
  width: min(23rem, calc(100vw - 1.5rem));
  overflow: hidden;
  border: 1px solid var(--a11y-line);
  border-radius: .75rem;
  background: var(--a11y-paper);
  box-shadow: 0 .45rem .85rem rgb(11 27 43 / 10%);
  color: var(--a11y-ink);
  font-family: "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
}
.a11y-control__title {
  margin: 0;
  padding: .85rem 1rem .55rem;
  color: var(--a11y-soft);
  font-size: .72rem;
  font-weight: 650;
  line-height: 1.4;
}
.a11y-control__section { padding: .75rem 1rem; border-bottom: 1px solid var(--a11y-line); }
.a11y-control__row { display: flex; min-width: 0; align-items: center; justify-content: space-between; gap: .75rem; }
.a11y-control__label { display: inline-flex; min-width: 0; align-items: center; gap: .55rem; color: var(--a11y-soft); font-size: .86rem; font-weight: 600; line-height: 1.45; }
.a11y-control__label svg { width: 1rem; height: 1rem; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-width: 1.25; stroke-linecap: round; stroke-linejoin: round; }
.a11y-control__stepper { display: grid; flex: 0 0 auto; grid-template-columns: 2.5rem minmax(4.25rem, auto) 2.5rem; align-items: center; gap: .35rem; }
.a11y-control__stepper button {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border: 1px solid var(--a11y-line);
  border-radius: .35rem;
  background: transparent;
  color: var(--a11y-ink);
}
.a11y-control__stepper button:disabled { opacity: .35; cursor: not-allowed; }
.a11y-control__stepper svg { width: .9rem; height: .9rem; }
.a11y-control__stepper strong { color: var(--a11y-ink); font-size: .76rem; font-weight: 650; text-align: center; white-space: nowrap; }
.a11y-control__scale-track { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .3rem; margin-top: .65rem; }
.a11y-control__scale-track button { height: .45rem; min-height: .45rem; border: 1px solid var(--a11y-line); border-radius: 999px; padding: 0; background: transparent; }
.a11y-control__scale-track button[aria-pressed="true"] { border-color: var(--a11y-active); background: var(--a11y-active); }
.a11y-control__widths { display: grid; flex: 0 0 auto; grid-template-columns: repeat(3, minmax(3.7rem, 1fr)); gap: .25rem; }
.a11y-control__widths button { min-height: 2.5rem; border: 0; border-radius: .3rem; padding: .35rem .55rem; background: transparent; color: var(--a11y-soft); font-size: .75rem; font-weight: 650; }
.a11y-control__widths button[aria-pressed="true"] { background: var(--a11y-active); color: var(--a11y-paper); }
.a11y-control__contrast { display: flex; width: 100%; min-height: 3.2rem; align-items: center; justify-content: space-between; gap: .75rem; border: 0; border-radius: 0; padding: .65rem 1rem; background: transparent; color: var(--a11y-soft); text-align: left; }
.a11y-control__contrast:hover { background: color-mix(in srgb, var(--a11y-ink) 4%, transparent); }
.a11y-control__switch { position: relative; width: 2.8rem; height: 1.55rem; flex: 0 0 auto; border-radius: 999px; background: color-mix(in srgb, var(--a11y-ink) 18%, transparent); }
.a11y-control__switch span { position: absolute; top: .18rem; left: .18rem; width: 1.18rem; height: 1.18rem; border-radius: 999px; background: var(--a11y-paper); transition: transform 160ms ease-out; }
.a11y-control__contrast[aria-checked="true"] .a11y-control__switch { background: var(--a11y-active); }
.a11y-control__contrast[aria-checked="true"] .a11y-control__switch span { transform: translateX(1.25rem); }

details.a11y-control > summary { list-style: none; }
details.a11y-control > summary::-webkit-details-marker { display: none; }

@media (max-width: 760px) {
  .a11y-control__panel { position: fixed; top: calc(6.75rem + .55rem); right: max(.75rem, env(safe-area-inset-right)); left: auto; width: min(23rem, calc(100vw - 1.5rem)); }
  .a11y-control__title { padding-top: .75rem; }
}

@media (max-width: 360px) {
  .a11y-control__panel { right: .5rem; width: calc(100vw - 1rem); }
  .a11y-control__section { padding-inline: .75rem; }
  .a11y-control__row { gap: .45rem; }
  .a11y-control__label { font-size: .78rem; }
  .a11y-control__stepper { grid-template-columns: 2.3rem minmax(3.5rem, auto) 2.3rem; gap: .2rem; }
  .a11y-control__stepper button { width: 2.3rem; height: 2.3rem; }
  .a11y-control__widths { grid-template-columns: repeat(3, minmax(3.1rem, 1fr)); }
  .a11y-control__widths button { padding-inline: .3rem; font-size: .7rem; }
}

/* Large reading modes reflow the control instead of forcing labels and actions
   into the same row. This keeps every target legible at 320px and 400% zoom. */
html[data-a11y-text="3"] .a11y-control__row,
html[data-a11y-text="4"] .a11y-control__row {
  align-items: stretch;
  flex-direction: column;
}
html[data-a11y-text="3"] .a11y-control__stepper,
html[data-a11y-text="4"] .a11y-control__stepper,
html[data-a11y-text="3"] .a11y-control__widths,
html[data-a11y-text="4"] .a11y-control__widths {
  width: 100%;
}
html[data-a11y-text="3"] .a11y-control__stepper,
html[data-a11y-text="4"] .a11y-control__stepper {
  grid-template-columns: 2.5rem minmax(0, 1fr) 2.5rem;
}
html[data-a11y-text="3"] .a11y-control__widths,
html[data-a11y-text="4"] .a11y-control__widths {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (prefers-reduced-motion: reduce) {
  .a11y-control__switch span { transition-duration: .01ms; }
}