/* UT Chatbot (Gratis) - Estilo institucional */
.utcb{--guinda:#931935;--dorado:#c9925b;--verde:#0e312d;--wa:#25D366;--text:#0f172a;--muted:#475569;--line:rgba(15,23,42,.14);}
.utcb *{box-sizing:border-box}
.utcb__fab{
  position:fixed;right:18px;bottom:18px;z-index:99999;
  width:58px;height:58px;border-radius:18px;
  background:var(--guinda);color:#fff;
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 18px 46px rgba(0,0,0,.22);
  display:grid;place-items:center;
  cursor:pointer; user-select:none;
  transition:transform .15s ease, box-shadow .25s ease, filter .25s ease;
}
.utcb__fab:hover{transform:translateY(-2px);box-shadow:0 24px 60px rgba(0,0,0,.28);filter:brightness(1.03)}
.utcb__fab:active{transform:translateY(-1px) scale(.99)}
.utcb__fab span{font-size:26px;line-height:1}
.utcb__badge{
  position:absolute;top:-6px;right:-6px;
  background:var(--dorado);color:#fff;
  border-radius:999px;padding:4px 7px;
  font-size:11px;font-weight:900;
  border:1px solid rgba(255,255,255,.25);
}
.utcb__panel{
  position:fixed;right:18px;bottom:86px;z-index:99999;
  width:min(360px, calc(100vw - 36px));
  border-radius:20px;
  border:1px solid var(--line);
  background:#fff;
  box-shadow:0 26px 80px rgba(0,0,0,.18);
  overflow:hidden;
  display:none;
}
.utcb__panel.is-open{display:block;animation:utcbPop .18s ease-out}
@keyframes utcbPop{from{transform:translateY(8px);opacity:.6}to{transform:translateY(0);opacity:1}}
.utcb__head{
  background:rgba(147,25,53,.06);
  border-bottom:1px solid var(--line);
  padding:12px 12px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.utcb__title{display:flex;align-items:center;gap:10px}
.utcb__title b{color:var(--text);font-weight:980}
.utcb__title small{display:block;color:var(--muted);font-size:12px;margin-top:1px}
.utcb__close{
  width:40px;height:40px;border-radius:14px;
  border:1px solid var(--line);
  background:#fff;cursor:pointer;
  font-size:18px;font-weight:900;color:var(--text);
}
.utcb__body{padding:12px;max-height:min(58vh, 520px);overflow:auto;background:#fff}
.utcb__msg{display:flex;gap:8px;margin:10px 0}
.utcb__msg--bot{justify-content:flex-start}
.utcb__msg--user{justify-content:flex-end}
.utcb__bubble{
  max-width:85%;
  padding:10px 12px;border-radius:16px;
  border:1px solid var(--line);
  background:#fff;color:var(--text);
  line-height:1.45;font-size:14px;
}
.utcb__msg--user .utcb__bubble{
  background:rgba(14,49,45,.06);
  border-color:rgba(14,49,45,.18);
}
.utcb__bubble a{color:var(--guinda);font-weight:900;text-decoration:none}
.utcb__bubble a:hover{text-decoration:underline}
.utcb__chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.utcb__chip{
  border:1px solid var(--line);
  background:#fff;border-radius:999px;
  padding:8px 10px;font-weight:900;
  font-size:12.5px;color:var(--text);
  cursor:pointer;transition:transform .12s ease;
}
.utcb__chip:hover{transform:translateY(-1px)}
.utcb__foot{
  border-top:1px solid var(--line);
  padding:10px;background:#fff;
}
.utcb__row{display:flex;gap:8px;align-items:center}
.utcb__input{
  flex:1;border:1px solid var(--line);border-radius:14px;
  padding:10px 12px;font-size:14px;outline:none;
}
.utcb__send{
  width:44px;height:44px;border-radius:14px;
  border:1px solid rgba(147,25,53,.25);
  background:rgba(147,25,53,.10);
  color:var(--guinda);font-weight:980;cursor:pointer;
}
.utcb__actions{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.utcb__wa{
  flex:1;
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 12px;border-radius:14px;
  background:var(--wa);color:#fff; /* obligatorio */
  text-decoration:none;font-weight:980;
  border:1px solid rgba(0,0,0,.06);
}
.utcb__link{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 12px;border-radius:14px;
  background:#fff;color:var(--verde);
  text-decoration:none;font-weight:980;
  border:1px solid rgba(14,49,45,.25);
}
@media (prefers-reduced-motion:reduce){
  .utcb__fab,.utcb__panel{transition:none;animation:none}
}