/* Chat panel styles */

.chat-head {
  padding: 16px 18px 12px;
  border-bottom: 1px solid var(--rule-2);
  display: flex; align-items: center; justify-content: space-between;
}
.chat-head .title {
  font-family: var(--serif); font-size: 16px;
  letter-spacing: -0.01em;
}
.chat-head .sub {
  font-size: 11px; color: var(--muted);
  letter-spacing: 0.06em; text-transform: uppercase;
  margin-top: 2px;
}
.chat-head-actions { display: flex; gap: 4px; }
.icon-btn {
  width: 28px; height: 28px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r);
  border: 0; background: transparent; color: var(--muted);
  cursor: pointer;
}
.icon-btn:hover { background: var(--paper-3); color: var(--ink); }

.chat-stream {
  flex: 1;
  overflow-y: auto;
  padding: 18px 18px 8px;
  display: flex; flex-direction: column; gap: 14px;
}

.bubble {
  max-width: 92%;
  display: flex; flex-direction: column; gap: 6px;
}
.bubble.user { align-self: flex-end; }
.bubble.bot  { align-self: flex-start; }
.bubble-meta {
  font-size: 10px; color: var(--muted-2);
  letter-spacing: 0.06em; text-transform: uppercase;
  font-family: var(--mono);
  padding: 0 4px;
}
.bubble.user .bubble-meta { text-align: right; }

.bubble-body {
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 13.5px;
  line-height: 1.5;
  border: 1px solid var(--rule);
}
.bubble.user .bubble-body {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  border-bottom-right-radius: 4px;
}
.bubble.bot .bubble-body {
  background: var(--card);
  color: var(--ink);
  border-bottom-left-radius: 4px;
}

.viz-thumb {
  margin-top: 4px;
  border: 1px solid var(--rule);
  border-radius: var(--r);
  background: var(--card);
  padding: 8px 10px;
  display: flex; align-items: center; gap: 10px;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease;
}
.viz-thumb:hover { background: var(--paper-3); border-color: var(--ink-2); }
.viz-thumb.active { border-color: var(--ink); }
.viz-thumb-icon {
  width: 36px; height: 36px;
  background: var(--paper-3);
  border-radius: 6px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--foam);
  flex-shrink: 0;
}
.viz-thumb-text { font-size: 12px; color: var(--ink); min-width: 0; }
.viz-thumb-text .t1 { font-weight: 500; }
.viz-thumb-text .t2 {
  color: var(--muted); font-size: 11px;
  font-family: var(--mono); letter-spacing: 0.04em;
  text-transform: uppercase; margin-top: 1px;
}

.chat-input-wrap {
  padding: 12px 14px 14px;
  border-top: 1px solid var(--rule-2);
  background: var(--paper-2);
}
.chat-input {
  display: flex; align-items: flex-end; gap: 8px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 8px 8px 8px 14px;
  transition: border-color 120ms ease;
}
.chat-input:focus-within { border-color: var(--ink-2); }
.chat-input textarea {
  flex: 1;
  border: 0; outline: 0;
  resize: none;
  background: transparent;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 13.5px;
  line-height: 1.45;
  padding: 6px 0;
  min-height: 22px; max-height: 120px;
}
.chat-input textarea::placeholder { color: var(--muted-2); }
.send-btn {
  width: 32px; height: 32px;
  border-radius: 10px;
  border: 0;
  background: var(--ink);
  color: var(--paper);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background 120ms ease;
}
.send-btn:disabled { background: var(--rule); cursor: default; }

.suggestions {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 10px;
}
.suggestion-chip {
  border: 1px solid var(--rule);
  background: var(--card);
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 11.5px;
  color: var(--ink-2);
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease;
}
.suggestion-chip:hover { background: var(--paper-3); border-color: var(--ink-2); color: var(--ink); }

/* Bot typing indicator */
.bot-typing {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}
.bot-typing-text {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  letter-spacing: -0.005em;
  color: var(--ink-2);
  animation: typingFadeIn 320ms ease both;
}
@keyframes typingFadeIn {
  from { opacity: 0; transform: translateY(3px); }
  to   { opacity: 1; transform: translateY(0); }
}