/* Website assistant: a chat bubble in the bottom corner. */
.cfh-chat-btn{position:fixed;right:20px;bottom:20px;z-index:60;display:flex;align-items:center;gap:8px;border:0;cursor:pointer;background:var(--ink);color:#fff;font:700 15px/1 var(--body);padding:14px 18px;border-radius:999px;box-shadow:0 6px 24px rgba(10,16,32,.28)}
.cfh-chat-btn svg{width:20px;height:20px}
.cfh-chat-btn:hover{transform:translateY(-1px)}
.cfh-chat{position:fixed;right:20px;bottom:20px;z-index:61;width:min(380px,calc(100vw - 32px));height:min(560px,calc(100vh - 40px));display:none;flex-direction:column;background:var(--sheet);color:var(--fg);border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 40px rgba(10,16,32,.3);overflow:hidden;padding:0;margin:0}
.cfh-chat.open{display:flex}
.cfh-chat header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:var(--ink);color:#fff}
.cfh-chat header b{font:700 16px/1.2 var(--display)}
.cfh-chat header small{display:block;font:400 13px/1.3 var(--body);opacity:.8}
.cfh-chat header button{border:0;background:transparent;color:#fff;font-size:24px;line-height:1;cursor:pointer;padding:4px 8px}
.cfh-log{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px}
.cfh-msg{max-width:85%;padding:10px 13px;border-radius:12px;font-size:15px;line-height:1.45;white-space:pre-wrap;overflow-wrap:anywhere}
.cfh-msg.bot{align-self:flex-start;background:var(--paper);border:1px solid var(--line)}
.cfh-msg.me{align-self:flex-end;background:var(--accent);color:var(--accent-ink)}
.cfh-msg.wait{color:var(--muted);font-style:italic}
.cfh-chat form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.cfh-chat textarea{flex:1;resize:none;height:44px;max-height:120px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--sheet);color:var(--fg);font:400 15px/1.35 var(--body)}
.cfh-chat form button{border:0;cursor:pointer;background:var(--accent);color:var(--accent-ink);font:700 15px/1 var(--body);padding:0 16px;border-radius:10px}
.cfh-chat form button:disabled{opacity:.5;cursor:default}
.cfh-note{padding:0 12px 10px;font-size:12px;color:var(--muted)}
@media (max-width:520px){.cfh-chat{right:16px;bottom:16px}.cfh-chat-btn{right:16px;bottom:16px}.cfh-chat-btn span{display:none}}