/*
 * Where a request goes (js/chunks/privacy.js), on a keycap: one line, read left to right.
 *
 *   six keys ─────────▸ the AI you chose
 *
 * On a narrow key (one column, as tall as it needs) the same line is read top to bottom, and the six keys take the
 * face's whole width, so each is a finger wide.
 *
 *   <div class="keycap__body" data-chunk="privacy"></div>     mount() adds .privacy and fills it
 */

.keycap__body.privacy {
  --privacy-wire: color-mix(in srgb, var(--ink-2) 50%, transparent);
  --privacy-run: privacy-run;
  justify-content: center;
  gap: var(--s-2);
  padding: var(--s-1) var(--cap-pad);
}

/* The caption is the chunk's one line of words, and changes while a request is out: it keeps two lines' room. */
.keycap__caption[data-privacy-says] {
  grid-column: 1 / -1;
  min-height: calc(2 * 1.4em + var(--cap-pad));
}

.privacy__flow {
  flex: none;
  display: grid;
  grid-template-columns: minmax(0, 252px) minmax(48px, 1fr) auto;     /* the keys, the line, the AI */
  align-items: center;
  min-width: 0;
}

/* ---------------------------------------------------------------------------------------------- the keys --------- */

.privacy__typing {
  display: grid;
  gap: 2px;
  min-width: 0;
}

/* What the keys typed: one line, the caret kept in view if a visitor runs past the end. */
.privacy__line {
  min-width: 0;
  height: 1.5em;
  padding-inline: 4px;
  font-family: var(--mono);
  font-size: var(--t-small);
  line-height: 1.5;
  color: var(--ink);
  white-space: pre;
  overflow: hidden;
}

.privacy__tag { color: var(--accent-ink); }
.privacy__keys { min-width: 0; }

/* The face clips what is on it: the keys' focus ring is drawn inside their own edge. */
.privacy .gk:focus-visible { outline-offset: -2px; border-radius: var(--r-chip); }

/* ---------------------------------------------------------------------------------------------- the line --------- */

/* One line with an arrowhead (.privacy__tip) at its end, level with the keys. */
.privacy__wire {
  position: relative;
  align-self: end;
  height: 60px;
  min-width: 0;
  margin-inline: var(--s-2);
  isolation: isolate;
}

.privacy__wire::before {
  content: "";
  position: absolute;
  inset: 50% 0 auto 0;
  height: 1px;
  margin-top: -.5px;
  background: var(--privacy-wire);
  transition: background-color .2s;
}

.privacy__tip {
  position: absolute;
  top: 50%;
  right: 1px;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border: solid var(--privacy-wire);
  border-width: 1px 1px 0 0;
  transform: rotate(45deg);
  transition: border-color .2s;
}

.privacy__wire.is-live { --privacy-wire: var(--accent); }

/* What travels the line: a packet with the key in it. */
.privacy__dot {
  position: absolute;
  z-index: 0;
  top: 50%;
  left: 0;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin: -11px;
  border-radius: 50%;
  background: var(--cap-face);
  box-shadow: inset 0 0 0 1px var(--accent);
  color: var(--accent-ink);
  pointer-events: none;
  animation: var(--privacy-run) var(--privacy-ms, 300ms) linear both;
}

.privacy__dot--back { animation-direction: reverse; }
.privacy__dot svg { width: 13px; height: 13px; }

@keyframes privacy-run {
  from { left: 0; }
  to { left: 100%; }
}

@keyframes privacy-fall {
  from { top: 0; }
  to { top: 100%; }
}

/* ---------------------------------------------------------------------------------------------- the AI ----------- */

.privacy__ai {
  align-self: end;
  min-width: 0;
  max-width: 9.5em;
  margin-bottom: 12px;
  padding: 9px 12px;
  border-radius: 10px;
  box-shadow: inset 0 0 0 1px var(--privacy-wire);
  color: var(--ink);
  font-size: var(--t-tiny);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: .02em;
  text-align: center;
  text-wrap: balance;
  transition: box-shadow .2s, background-color .2s;
}

.privacy__ai.is-asked {
  background: var(--accent-wash);
  box-shadow: inset 0 0 0 1px var(--accent);
}

/* The chunk's own line of words, where the key gives it no caption to use. */
.privacy__says {
  flex: none;
  margin: 0;
  min-height: 2.8em;
  color: var(--ink-2);
  font-size: var(--t-small);
  line-height: 1.4;
  text-wrap: pretty;
}

/* ---------------------------------------------------------------------------------------------- a narrow key ----- */

/* Too narrow for six keys a finger wide beside the line: top to bottom, the keys across the whole face. */
@container cap (max-width: 470px) {
  .keycap__body.privacy {
    --privacy-run: privacy-fall;
    padding-block: var(--s-2);
  }

  .privacy__flow {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
  }

  .privacy__typing { width: 100%; max-width: 280px; }

  .privacy__wire {
    align-self: auto;
    width: 100%;
    height: 34px;
    margin: 2px 0 4px;
  }

  .privacy__wire::before {
    inset: 0 auto 0 50%;
    width: 1px;
    height: auto;
    margin: 0 0 0 -.5px;
  }

  .privacy__tip {
    top: auto;
    right: auto;
    bottom: 1px;
    left: 50%;
    margin: 0 0 0 -3px;
    transform: rotate(135deg);
  }

  .privacy__dot { top: 0; left: 50%; }

  .privacy__ai {
    align-self: auto;
    max-width: none;
    margin-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .privacy__dot { display: none; }

  .privacy__wire::before,
  .privacy__tip,
  .privacy__ai { transition: none; }
}

@media (forced-colors: active) {
  .keycap__body.privacy { --privacy-wire: CanvasText; }
  .privacy__wire.is-live { --privacy-wire: Highlight; }
  .privacy__ai { outline: 1px solid CanvasText; }
}