/* =============================================================
   Ask — page-scoped assistant (floating bar → panel / bottom sheet)
   Inherits the site's design tokens, so both themes come for free.
   ============================================================= */

.ask {
  --ask-w: 420px;
  font-family: var(--font-body);
}

/* ---------- Floating bar ---------- */
.ask-bar {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  z-index: 200;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: min(92vw, 460px);
  padding: 11px 14px 11px 16px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--card);
  box-shadow: var(--shadow-lg);
  color: var(--text-mid);
  font: inherit;
  font-size: 0.94rem;
  cursor: pointer;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.ask-bar:hover {
  color: var(--text);
  border-color: var(--accent);
  transform: translateX(-50%) translateY(-2px);
}
.ask-bar:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.ask-bar .ask-spark { width: 17px; height: 17px; flex: none; color: var(--accent); }
.ask-bar-hint { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ask-bar kbd {
  flex: none;
  padding: 2px 7px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}
.ask[data-state="open"] .ask-bar { opacity: 0; pointer-events: none; }

/* ---------- Scrim ---------- */
.ask-scrim {
  position: fixed;
  inset: 0;
  z-index: 210;
  background: rgba(3, 4, 9, 0.5);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s var(--ease);
}
.ask[data-state="open"] .ask-scrim { opacity: 1; pointer-events: auto; }

/* ---------- Panel (desktop: right sidebar) ---------- */
.ask-panel {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 220;
  display: flex;
  flex-direction: column;
  width: min(var(--ask-w), 100vw);
  height: 100dvh;
  border-left: 1px solid var(--border);
  background: var(--bg);
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform 0.34s var(--ease);
}
.ask[data-state="open"] .ask-panel { transform: none; }

.ask-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--border);
}
.ask-head .eyebrow { margin-bottom: 4px; }
.ask-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.16rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--text);
}
.ask-head p { margin: 6px 0 0; font-size: 0.82rem; line-height: 1.5; color: var(--text-dim); }
.ask-close {
  flex: none;
  margin-left: auto;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: transparent;
  color: var(--text-mid);
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.ask-close:hover { color: var(--text); border-color: var(--border-strong); }
.ask-close svg { width: 16px; height: 16px; }

.ask-body { flex: 1; overflow-y: auto; padding: 16px 18px 22px; }

/* ---------- Concept galaxy ---------- */
.ask-galaxy {
  margin: 0 0 16px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background:
    radial-gradient(70% 90% at 50% 45%, rgba(139, 157, 255, 0.10), transparent 70%),
    var(--card);
  overflow: hidden;
}
.ask-galaxy canvas {
  display: block;
  width: 100%;
  height: 190px;
  cursor: grab;
  touch-action: pan-y;
}
.ask-galaxy canvas:active { cursor: grabbing; }
.ask-galaxy figcaption {
  padding: 8px 11px 10px;
  border-top: 1px solid var(--border);
  font-size: 0.71rem;
  line-height: 1.5;
  color: var(--text-dim);
}

.ask-concept {
  padding: 12px 13px;
  margin-bottom: 16px;
  border: 1px solid var(--accent-2);
  border-radius: var(--radius-sm);
  background: var(--card);
}
.ask-concept h4 {
  margin: 0 0 6px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
}
.ask-concept p { margin: 0 0 10px; font-size: 0.82rem; line-height: 1.6; color: var(--text-mid); }
.ask-concept-go {
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 6px 12px;
  background: transparent;
  color: var(--accent-2);
  font: inherit;
  font-size: 0.78rem;
  cursor: pointer;
}
.ask-concept-go:hover { border-color: var(--accent-2); background: rgba(86, 217, 224, 0.08); }

/* ---------- Idle / suggestions ---------- */
.ask-intro { font-size: 0.88rem; line-height: 1.6; color: var(--text-mid); margin: 0 0 14px; }
.ask-sugg-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 9px;
}
.ask-sugg { display: flex; flex-wrap: wrap; gap: 8px; }
.ask-sugg button {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--text-mid);
  font: inherit;
  font-size: 0.82rem;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.ask-sugg button:hover { color: var(--text); border-color: var(--accent); transform: translateY(-1px); }

/* ---------- Status (model load / search) ---------- */
.ask-status {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 13px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  font-size: 0.83rem;
  color: var(--text-mid);
  margin-bottom: 16px;
}
.ask-status b { color: var(--text); font-weight: 600; }
.ask-status small { color: var(--text-dim); font-size: 0.76rem; line-height: 1.5; }
.ask-progress { height: 5px; border-radius: 99px; background: var(--surface); overflow: hidden; }
.ask-progress i { display: block; height: 100%; width: 0; background: var(--grad); transition: width 0.3s var(--ease); }
.ask-error { border-color: rgba(255, 120, 120, 0.4); color: #ffb0b0; }

/* ---------- Zones ---------- */
.ask-zone { margin-bottom: 20px; }
.ask-zone-head {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin-bottom: 10px;
}
.ask-zone-head h3 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 600;
}
.ask-zone-note { font-size: 0.74rem; color: var(--text-dim); line-height: 1.45; }

/* Sources: verbatim, never model-generated */
.ask-src {
  position: relative;
  padding: 12px 13px 12px 15px;
  margin-bottom: 10px;
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent-2);
  border-radius: var(--radius-sm);
  background: var(--card);
}
.ask-src-quote {
  margin: 0 0 9px;
  font-size: 0.84rem;
  line-height: 1.62;
  color: var(--text-mid);
  white-space: pre-wrap;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
}
.ask-src.expanded .ask-src-quote { -webkit-line-clamp: unset; }
.ask-src-more {
  border: 0;
  padding: 0;
  margin: 0 0 9px;
  background: none;
  color: var(--accent);
  font: inherit;
  font-size: 0.76rem;
  cursor: pointer;
}
.ask-src-more:hover { text-decoration: underline; }
.ask-cite {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  align-items: baseline;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--text-dim);
}
.ask-cite-n {
  min-width: 20px;
  padding: 1px 6px;
  border-radius: 5px;
  background: var(--surface);
  color: var(--accent-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-align: center;
}
.ask-cite a { color: var(--text-mid); text-decoration: none; border-bottom: 1px solid var(--border-strong); }
.ask-cite a:hover { color: var(--accent); border-color: var(--accent); }
.ask-cite-loc { color: var(--text-dim); }

/* ---------- Composer ---------- */
.ask-form {
  display: flex;
  gap: 8px;
  padding: 12px 14px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.ask-input {
  flex: 1;
  min-width: 0;
  padding: 11px 13px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
}
.ask-input::placeholder { color: var(--text-dim); }
.ask-input:focus { outline: none; border-color: var(--accent); }
.ask-send {
  flex: none;
  width: 42px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 10px;
  background: var(--grad);
  color: var(--accent-ink);
  cursor: pointer;
  transition: opacity 0.2s var(--ease);
}
.ask-send:disabled { opacity: 0.45; cursor: default; }
.ask-send svg { width: 17px; height: 17px; }
.ask-foot {
  padding: 0 14px 12px;
  background: var(--surface);
  font-size: 0.71rem;
  line-height: 1.5;
  color: var(--text-dim);
}

/* ---------- Mobile: bottom sheet ---------- */
@media (max-width: 720px) {
  .ask-bar { bottom: calc(14px + env(safe-area-inset-bottom, 0px)); padding: 10px 13px; font-size: 0.88rem; }
  .ask-bar kbd { display: none; }

  .ask-panel {
    top: auto;
    right: 0;
    left: 0;
    width: 100%;
    height: min(90dvh, 90vh);
    border-left: 0;
    border-top: 1px solid var(--border);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    transform: translateY(100%);
  }
  .ask-grip {
    display: block;
    width: 38px;
    height: 4px;
    margin: 9px auto 0;
    border-radius: 99px;
    background: var(--border-strong);
  }
  .ask-head { padding-top: 12px; }
}
.ask-grip { display: none; }

@media (prefers-reduced-motion: reduce) {
  .ask-bar, .ask-panel, .ask-scrim, .ask-progress i { transition: none; }
}

.ask-weak {
  border-color: var(--accent-3);
  color: var(--text-mid);
  font-size: 0.8rem;
}

/* Collapsed sources: citation line only, click or Enter to reveal the quote. */
.ask-src--min {
  padding: 9px 11px 9px 13px;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.ask-src--min .ask-src-quote,
.ask-src--min .ask-src-more { display: none; }
.ask-src--min:hover,
.ask-src--min:focus-visible { border-left-color: var(--accent); background: var(--card-hover); }
.ask-src--min:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.ask-src--min .ask-cite::after {
  content: "＋";
  grid-column: 2;
  justify-self: end;
  color: var(--text-dim);
  font-size: 0.7rem;
}

/* ---------- Math ---------- */
.ask-math { font-size: 1.02em; }
.ask-math--display {
  display: block;
  margin: 8px 0;
  overflow-x: auto;      /* long equations scroll rather than break the panel */
  overflow-y: hidden;
  padding-bottom: 2px;
}
.ask-math math { color: var(--text); }
/* KaTeX emits an accessibility duplicate; MathML output is what we display. */
.ask-math .katex-html { display: none; }