/* ── CHAT PANEL ── */
.chat-panel { display: flex; flex-direction: column; gap: 10px; padding: 18px; }
.chat-messages {
  height: 280px; overflow-y: auto;
  display: flex; flex-direction: column; gap: 6px;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.chat-msg {
  font-family: 'IBM Plex Mono', monospace; font-size: 11px;
  line-height: 1.5; word-break: break-word;
}
.chat-msg-user { color: #7ab8f5; font-weight: 500; margin-right: 6px; }
.chat-msg-text { color: var(--text2); }
.chat-msg-system {
  background: #1a1e19; border-left: 2px solid var(--border);
  padding: 4px 8px; border-radius: 1px;
}
.chat-msg-system .chat-msg-user { color: var(--text3); font-size: 10px; }
.chat-puzzle-link {
  font-weight: 700; cursor: pointer;
  text-decoration: underline; text-underline-offset: 2px;
  font-family: 'IBM Plex Mono', monospace;
}
.chat-puzzle-link.solved { color: var(--accent); }
.chat-puzzle-link.failed { color: var(--danger); }
.chat-puzzle-link:hover  { opacity: 0.8; }
.chat-time { color: var(--text3); font-size: 9px; margin-left: 6px; }
.chat-input-row { display: flex; gap: 6px; }
.chat-input {
  flex: 1; background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); padding: 8px 10px;
  font-family: 'IBM Plex Mono', monospace; font-size: 12px;
  border-radius: 1px; outline: none; min-width: 0;
}
.chat-input:focus { border-color: var(--accent); }
.chat-send-btn {
  background: var(--accent); color: #0d0f0e; border: none;
  padding: 8px 12px; font-family: 'IBM Plex Mono', monospace;
  font-size: 14px; font-weight: 700; border-radius: 1px;
  cursor: pointer; transition: background 0.15s; flex-shrink: 0;
}
.chat-send-btn:hover { background: #c9f060; }
.chat-msg-achievement {
  background: #2a200a; border-left: 2px solid #e5c050;
  padding: 4px 8px; border-radius: 1px;
}
.chat-msg-achievement .chat-msg-user { color: #e5c050; }