/* Override per demo: --kit-bg, --kit-fg, --kit-accent */
.demo-wa {
  --_bg: var(--kit-bg, #fff);
  --_fg: var(--kit-fg, #1a1a1a);
  --_accent: var(--kit-accent, #1a1a1a);
  box-sizing: border-box;
  margin: auto; /* keeps the modal centred even under a page-wide *{margin:0} */
  width: 100%;
  max-width: min(92vw, 420px);
  padding: 1.5rem;
  border: 1px solid color-mix(in srgb, var(--_fg) 20%, transparent);
  border-radius: 12px;
  background: var(--_bg);
  color: var(--_fg);
  font: inherit;
  opacity: 1;
  transform: none;
  transition: opacity .2s ease, transform .2s ease, overlay .2s allow-discrete, display .2s allow-discrete;
}
.demo-wa::backdrop { background: rgb(0 0 0 / .5); transition: opacity .2s ease; }
@starting-style {
  .demo-wa[open] { opacity: 0; transform: translateY(8px); }
  .demo-wa[open]::backdrop { opacity: 0; }
}
.demo-wa h2 { margin: 0 0 .75rem; font-size: 1.125rem; line-height: 1.3; }
.demo-wa p { margin: 0 0 .75rem; font-size: .9375rem; line-height: 1.5; }
.demo-wa blockquote {
  margin: 0 0 1.25rem;
  padding: .75rem 1rem;
  background: color-mix(in srgb, var(--_accent) 10%, transparent);
  border-radius: 8px;
  overflow-wrap: anywhere;
}
.demo-wa-close {
  min-height: 44px;
  padding: .5rem 1.25rem;
  border: 0;
  border-radius: 8px;
  background: var(--_accent);
  color: var(--_bg);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.demo-wa-close:focus-visible { outline: 2px solid var(--_fg); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  .demo-wa, .demo-wa::backdrop { transition: none; }
}

/* Phone menu: <details class="mnav"><summary>Menu</summary><nav>…</nav></details>. Hidden until a demo shows it under its own breakpoint.
   Each demo sets --mn-bg, --mn-fg, --mn-line and --mn-ring. Open/close by keyboard is native; demo-menu.js adds Escape and close on link click. */
.mnav { display: none; position: relative; }
.mnav summary { list-style: none; cursor: pointer; display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border: 1px solid var(--mn-line); border-radius: var(--mn-r, 6px); background: transparent; color: var(--mn-fg); font-family: inherit; font-size: 15px; font-weight: 600; line-height: 1; }
.mnav summary::-webkit-details-marker { display: none; }
.mnav summary:focus-visible, .mnav nav a:focus-visible { outline: 3px solid var(--mn-ring); outline-offset: 2px; }
.mnav nav { gap: 0; position: absolute; right: 0; top: calc(100% + 8px); display: grid; min-width: 220px; padding: 6px; background: var(--mn-bg); border: 1px solid var(--mn-line); box-shadow: 0 14px 36px rgba(0, 0, 0, .2); }
.mnav nav a { display: flex; align-items: center; min-height: 44px; padding: 0 14px; color: var(--mn-fg); font-size: 16px; font-weight: 600; text-decoration: none; }
.mnav nav a:focus-visible { outline-offset: -3px; }

/* Skip link: off screen until focused. Fixed colours give 18.9:1 contrast whatever the demo's palette. */
.demo-skip { position: absolute; left: 8px; top: -60px; z-index: 1000; padding: 10px 14px; background: #111; color: #fff; font-weight: 600; text-decoration: none; }
.demo-skip:focus { top: 8px; }

/* Hover for plain text links the demos don't style themselves: banner, brand, footer and in-page text links.
   Only on devices that can hover, and with no transition, so reduced motion needs nothing extra. */
@media (hover: hover) {
  .demo a:hover, footer a:hover, main a:not([class]):hover, header a:not([class]):hover, a[data-wa]:not([class]):hover, .ask:hover, .callno:hover {
    text-decoration-line: underline; text-decoration-thickness: 2px; text-underline-offset: 4px;
  }
  .brand:hover { opacity: .72; }
}