/* Ask an assistant about a selected passage: the floating trigger and the handover dialog.
 *
 * Palette, radii and shadows follow bedrock.css; this file adds no variable of its own.
 * AGPL-3.0-only, like the rest of Bedrock's first-party front end. See NOTICE.
 */

/* ---- the trigger beside the selection ---- */
/* Fixed, and repositioned from the live selection on scroll and resize, the way the
   term popup and the code-note toast are: the article reflows after a selection is made
   (KaTeX, the margin notes), so a position measured once would drift. */
.ask-ai-trigger { position: fixed; z-index: 80; display: inline-flex; gap: .3rem;
  align-items: center; margin: 0; padding: .34rem .6rem;
  color: var(--text-bg); background: var(--primary);
  border: 1px solid color-mix(in srgb, var(--primary) 70%, #000);
  border-radius: 7px; box-shadow: 0 4px 14px rgba(0,0,0,.28);
  font: 700 .8rem/1.1 var(--sans); white-space: nowrap; cursor: pointer;
  user-select: none; -webkit-user-select: none; }
/* An author `display` beats the user-agent rule for [hidden], so restate it. */
.ask-ai-trigger[hidden] { display: none; }
.ask-ai-trigger:hover { background: color-mix(in srgb, var(--primary) 85%, #000); }
.ask-ai-trigger:focus-visible { outline: 2px solid var(--text-fg); outline-offset: 2px; }
.ask-ai-trigger .ask-ai-glyph { font-size: .95em; }

/* ---- the handover dialog ---- */
/* The dialog is as tall as its handover and no taller, up to what the screen allows,
   so a short selection does not open a full-height panel and a long one still fits.

   `height: fit-content` is load-bearing and is stated rather than inherited from the
   user-agent sheet. A modal dialog is an absolutely positioned box that the user agent
   pins at both block edges; `height: auto` on such a box is solved by stretching it to
   fill that gap, which would peg the dialog at the cap whatever it holds. `fit-content`
   asks for the content height instead, and the cap below trims it.

   `dvh` keeps a phone's collapsing toolbar from cutting the footer off, with `vh`
   behind it for older engines. */
.ask-ai-dialog { width: min(56rem, calc(100vw - 2rem)); max-width: none;
  height: fit-content; max-height: min(90vh, 54rem);
  max-height: min(90dvh, 54rem); padding: 0; color: var(--text-fg);
  background: var(--popup-bg); border: 1px solid var(--ruler); border-radius: 11px;
  box-shadow: 0 18px 48px rgba(0,0,0,.4); font-family: var(--sans); }
.ask-ai-dialog::backdrop { background: rgba(12, 15, 22, .58); }

.ask-ai-dialog[open] { display: flex; flex-direction: column; }
/* The frame keeps its size; the text area is the one part that gives. */
.ask-ai-head, .ask-ai-hint, .ask-ai-foot { flex: none; }

.ask-ai-head { display: flex; gap: .75rem; align-items: baseline;
  padding: .95rem 1.1rem .6rem; border-bottom: 1px solid var(--code-border); }
.ask-ai-head h2 { flex: 1; margin: 0; color: var(--text-fg);
  font: 700 1.05rem/1.3 var(--sans); }
.ask-ai-close { display: grid; place-items: center; width: 2rem; height: 2rem;
  padding: 0; color: var(--fg-alt); background: transparent; border: 0;
  border-radius: 5px; font: 1.25rem/1 var(--sans); cursor: pointer; }
.ask-ai-close:hover, .ask-ai-close:focus-visible { color: var(--text-fg);
  background: var(--button-hover); }

.ask-ai-hint { margin: 0; padding: .65rem 1.1rem; color: var(--fg-alt);
  background: var(--code-bg); border-bottom: 1px solid var(--code-border);
  font-size: .84rem; line-height: 1.5; }

/* The whole text is one copy target: a click anywhere in it copies the handover.
   Two declarations carry the sizing, and both matter.

   `flex: 1 1 auto` makes the base size the text's own height, so the dialog is as tall
   as its handover and the cap does the rest. The shorthand `flex: 1` sets that base
   size to zero instead, and an auto-height column flex container has no free space to
   grow it back from; Safari takes that literally and the text area collapses, which is
   the one-line dialog this replaces. Chromium happens to size the container from its
   content and hides the mistake.

   The explicit `min-height` does two jobs. It overrides `min-height: auto`, which an
   `overflow: auto` flex item resolves to zero, and it puts a floor under the area so
   the reader always sees a passage of the handover rather than a sliver of it. The
   floor stays below the cap on a short screen, so the footer is never pushed out. */
.ask-ai-copy { flex: 1 1 auto; min-height: min(9rem, 40vh);
  margin: 0; padding: .9rem 1.1rem;
  overflow: auto; overscroll-behavior: contain;
  background: var(--text-bg); cursor: pointer; }
.ask-ai-copy:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }
.ask-ai-copy:hover { background: color-mix(in srgb, var(--primary) 5%, var(--text-bg)); }
.ask-ai-copy pre { margin: 0; color: var(--code-fg); font: .8rem/1.55 var(--mono);
  white-space: pre-wrap; overflow-wrap: anywhere; }

.ask-ai-foot { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center;
  padding: .7rem 1.1rem .85rem; border-top: 1px solid var(--code-border); }
.ask-ai-status { flex: 1; min-width: 8rem; color: var(--fg-alt); font-size: .82rem; }
.ask-ai-status[data-done="yes"] { color: var(--code-constructor); font-weight: 700; }
.ask-ai-button { padding: .42rem .85rem; color: var(--text-bg); background: var(--primary);
  border: 0; border-radius: 7px; font: 700 .85rem/1.2 var(--sans); cursor: pointer; }
.ask-ai-button:hover { background: color-mix(in srgb, var(--primary) 85%, #000); }
.ask-ai-button.secondary { color: var(--text-fg); background: transparent;
  border: 1px solid var(--input-border); font-weight: 400; }
.ask-ai-button.secondary:hover { background: var(--button-hover); }

/* Without `showModal` the dialog is an ordinary block at the end of the body, which
   would leave it below the footer. Place it and paint a backdrop by hand. */
.ask-ai-dialog[open]:not(:modal) { position: fixed; z-index: 90;
  top: 50%; left: 50%; transform: translate(-50%, -50%); }

@media (max-width: 40rem) {
  .ask-ai-dialog { width: 100vw; max-height: 92vh; max-height: 92dvh;
    border-radius: 11px 11px 0 0; }
  .ask-ai-copy pre { font-size: .74rem; }
}
@media (prefers-reduced-motion: no-preference) {
  .ask-ai-trigger { animation: ask-ai-appear .12s ease-out; }
  @keyframes ask-ai-appear { from { opacity: 0; transform: translateY(-2px); } }
}