.kca{--kca-brand:var(--brand,#0075b5);--kca-ink:var(--ink,#16202a);--kca-line:var(--line,#dfe5eb);--kca-soft:var(--brand-soft,#e8f2f8);--kca-surface:var(--surface,#fff);position:fixed;right:20px;bottom:20px;z-index:40;font-family:inherit;font-size:15px;line-height:1.4;color:var(--kca-ink)}
body.nav-open .kca{display:none}
.kca *{box-sizing:border-box}
.kca-open{display:flex;align-items:center;gap:8px;height:52px;padding:0 18px;border:0;border-radius:999px;background:rgba(0,117,181,.92);color:#fff;font:inherit;font-weight:700;cursor:pointer;box-shadow:0 6px 18px rgba(13,36,58,.28)}
.kca-open svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.kca-panel{display:flex;flex-direction:column;width:min(370px,calc(100vw - 24px));height:min(540px,calc(100vh - 110px));background:rgba(255,255,255,.94);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border:0;border-radius:16px;overflow:hidden;box-shadow:0 12px 36px rgba(13,36,58,.25)}
.kca-panel[hidden]{display:none}
.kca-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:rgba(0,117,181,.94);color:#fff;font-weight:700}
.kca-close{width:34px;height:34px;border:0;border-radius:8px;background:none;color:#fff;font-size:24px;line-height:1;cursor:pointer}
.kca-log{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}
.kca-msg{max-width:88%;padding:9px 12px;border-radius:12px;background:var(--kca-soft);overflow-wrap:anywhere}
.kca-msg.kca-user{align-self:flex-end;background:var(--kca-brand);color:#fff}
.kca-msg a{color:inherit;font-weight:700;text-decoration:underline}
.kca-actions{display:flex;flex-wrap:wrap;gap:8px}
.kca-btn{padding:8px 14px;border:1px solid var(--kca-brand);border-radius:10px;background:var(--kca-surface);color:var(--kca-brand);font:inherit;font-weight:700;cursor:pointer;text-decoration:none}
.kca-btn.kca-primary{background:var(--kca-brand);color:#fff}
.kca-btn.kca-whatsapp{border-color:#128c4a;background:#128c4a;color:#fff}
.kca-btn:hover{text-decoration:none}
.kca-item{display:flex;gap:10px;padding:8px;border:1px solid var(--kca-line);border-radius:10px;color:inherit;text-decoration:none}
.kca-item:hover{border-color:var(--kca-brand);color:inherit;text-decoration:none}
.kca-item img{flex:none;width:72px;height:56px;border-radius:6px;object-fit:cover}
.kca-item b{display:block;font-size:14px;font-weight:600}
.kca-item span{font-weight:700;color:var(--kca-brand)}
.kca-form{display:flex;gap:8px;padding:10px;border-top:1px solid var(--kca-line)}
.kca-input{flex:1;min-width:0;height:42px;padding:0 12px;border:1px solid var(--kca-line);border-radius:10px;background:var(--kca-surface);color:var(--kca-ink);font:inherit;font-size:16px}
.kca-send{height:42px;padding:0 14px;border:0;border-radius:10px;background:var(--kca-brand);color:#fff;font:inherit;font-weight:700;cursor:pointer}
.kca-send:disabled{opacity:.6;cursor:default}
@media (max-width:860px){
  .kca{right:12px;bottom:calc(84px + env(safe-area-inset-bottom,0px))}
  .kca-panel{height:min(520px,calc(100vh - 190px))}
  .kca-open{width:52px;padding:0;justify-content:center}
  .kca-open span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
}
.kca-open[hidden]{display:none}
.kca-open{transition:opacity .15s}
.kca-open.kca-behind{opacity:0;visibility:hidden}
@media (max-width:860px){
  .kca-open.kca-has-results{width:auto;padding:0 16px}
  .kca-open.kca-has-results span{position:static;width:auto;height:auto;overflow:visible;clip:auto}
}