/* Chat layer for fragen.html and the panel on index.html.
   Uses only the site's custom properties, so dark mode follows. */

.chat-live, .chat-open { display: none; }
.js .chat-live { display: block; }
.js .chat-open { display: flex; }

.chat-note { font-size: 0.8125rem; color: var(--ink-muted); margin-bottom: 14px; }

.thread { list-style: none; margin-bottom: 20px; }
.turn { padding: 16px 0; border-top: 1px solid var(--rule-soft); }
.turn:last-child { border-bottom: 1px solid var(--rule-soft); }
.who {
  font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ink-muted); margin-bottom: 6px;
}
.turn .text { white-space: pre-line; overflow-wrap: anywhere; }
.turn.q .text { font-weight: 600; }
.source {
  margin-top: 12px; font-size: 0.8125rem; color: var(--ink-muted);
  padding-left: 12px; border-left: 2px solid var(--rule-soft);
}
.chat-status { margin-top: 10px; font-size: 0.8125rem; color: var(--ink-muted); }
.turn .lnk { display: inline-block; margin-top: 8px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.chip {
  font: inherit; font-size: 0.8125rem; font-weight: 500; color: var(--ink);
  background: transparent; border: 1px solid var(--rule-soft);
  padding: 6px 12px; cursor: pointer; text-align: left;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.used { color: var(--ink-muted); border-style: dashed; }

.ask { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: end; }
.ask textarea {
  font: inherit; color: var(--ink); background: var(--paper);
  border: 1px solid var(--rule-strong); padding: 10px 12px;
  min-height: 46px; resize: vertical; width: 100%;
}
.ask button {
  font: inherit; font-weight: 600; font-size: 0.875rem;
  background: var(--ink); color: var(--paper); border: 1px solid var(--ink);
  padding: 11px 20px; cursor: pointer; height: 46px;
}
.ask button:disabled { opacity: 0.5; cursor: wait; }
.ask-meta {
  display: flex; justify-content: space-between; gap: 16px;
  font-size: 0.75rem; color: var(--ink-muted); margin-top: 6px;
}
.ask-meta .count { white-space: nowrap; }
.ask-meta .lnk { font-size: 0.75rem; }

.chip:focus-visible, .ask button:focus-visible, .ask textarea:focus-visible,
.chat-open:focus-visible, .panel-close:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

/* --- corner button, index.html -------------------------------- */
.chat-open {
  position: fixed; right: 24px; bottom: 24px; z-index: 50;
  gap: 12px; align-items: center; text-align: left;
  font: inherit; color: var(--ink); background: var(--paper);
  border: 1px solid var(--rule-strong); padding: 12px 18px 12px 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.10); cursor: pointer;
}
.chat-open svg { color: var(--accent); flex: none; }
.chat-open b { display: block; font-size: 0.9375rem; font-weight: 600; }
.chat-open small { display: block; font-size: 0.75rem; color: var(--ink-muted); }
.chat-open:hover b { color: var(--accent); }

/* --- chat popup, index.html ------------------------------------ */
.chat-panel {
  position: fixed; right: 24px; bottom: 24px; z-index: 60;
  width: 420px; max-width: calc(100vw - 32px); height: min(52vh, 560px);
  background: var(--paper); border: 1px solid var(--rule-strong);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  display: flex; flex-direction: column;
}
.chat-panel[hidden] { display: none; }
.panel-head {
  display: flex; align-items: baseline; gap: 12px;
  padding: 20px 24px 14px; border-bottom: 1px solid var(--rule-soft);
}
.panel-head h2 {
  font-family: 'Libre Bodoni', Georgia, serif; font-size: 1.25rem; font-weight: 500;
  margin-right: auto;
}
.panel-close {
  font: inherit; font-size: 0.875rem; color: var(--ink); background: none;
  border: 0; border-bottom: 1px solid var(--accent); cursor: pointer;
}
.js .chat-panel .chat { display: flex; flex-direction: column; flex: 1; min-height: 0; }
.panel-body { flex: 1; overflow-y: auto; padding: 14px 24px 12px; }
.panel-foot { padding: 14px 24px 18px; border-top: 1px solid var(--rule-soft); }
.chat-panel .chip { font-size: 0.75rem; padding: 5px 10px; }

@media (max-width: 900px) {
  .ask { grid-template-columns: 1fr; }
  .ask button { width: 100%; }
  .ask textarea { min-height: 72px; }
  .chat-panel .ask { grid-template-columns: 1fr auto; }
  .chat-panel .ask button { width: auto; }
  .chat-panel .ask textarea { min-height: 44px; }
  .chat-open { right: 16px; bottom: 16px; }
  .chat-panel { right: 16px; bottom: 16px; width: calc(100vw - 32px); height: min(60vh, 520px); }
  .panel-head, .panel-body, .panel-foot { padding-left: 20px; padding-right: 20px; }
}

@media print {
  .chat-live, .chat-open, .chat-panel { display: none !important; }
}