.cavat-ai{max-width:420px;border:1px solid #c9d3e6;border-radius:12px;background:#fff;font-family:inherit}
.cavat-ai__log{height:320px;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:8px}
.cavat-ai__m{max-width:85%;padding:8px 12px;border-radius:12px;line-height:1.4;white-space:pre-wrap;word-break:break-word}
.cavat-ai__m--bot{background:#eef3fb;color:#0b2a5b;align-self:flex-start}
.cavat-ai__m--me{background:#0b2a5b;color:#fff;align-self:flex-end}
.cavat-ai__m a{display:block;color:#0b2a5b;font-weight:600;margin-top:4px}
.cavat-ai__row{display:flex;gap:6px;padding:8px;border-top:1px solid #e2e8f3}
.cavat-ai__row input{flex:1;padding:8px 10px;border:1px solid #c9d3e6;border-radius:8px}
.cavat-ai__row button{padding:8px 14px;border:0;border-radius:8px;background:#0b2a5b;color:#fff;cursor:pointer}
.cavat-ai__row button:disabled{opacity:.5;cursor:not-allowed}
.cavat-ai-admin-note{background:#fff4d6;border:1px solid #e6c15a;padding:6px 10px;border-radius:6px;font-size:13px}

/* ---- Buddy chatbox (bong bóng nổi) ---- */
.cavat-ai[hidden]{display:none}
.cavat-ai-bubble{position:fixed;right:20px;bottom:20px;z-index:99999;font-family:inherit}
.cavat-ai-bubble--left{right:auto;left:20px}
.cavat-ai-bubble__launch{all:unset;box-sizing:border-box;display:flex;align-items:center;gap:10px;margin-left:auto;padding:6px 18px 6px 6px;border-radius:999px;background:linear-gradient(135deg,#0b2a5b,#16408a);color:#fff;font-family:inherit;font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;box-shadow:0 8px 22px rgba(11,42,91,.35),0 0 0 2px #c8a24a;transition:transform .15s ease,box-shadow .15s ease}
.cavat-ai-bubble--left .cavat-ai-bubble__launch{margin-left:0;margin-right:auto}
.cavat-ai-bubble__launch:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,42,91,.4),0 0 0 2px #e0bd62}
.cavat-ai-bubble__launch:focus-visible,.cavat-ai__head button:focus-visible{outline:3px solid #c8a24a;outline-offset:3px}
.cavat-ai-avatar{display:block;flex:none;width:40px;height:40px;border-radius:50%;background:#fff;object-fit:cover}
.cavat-ai-bubble__label{white-space:nowrap;letter-spacing:.2px;color:#fff}
.cavat-ai--panel{position:absolute;right:0;bottom:64px;width:360px;max-width:calc(100vw - 32px);box-shadow:0 12px 32px rgba(0,0,0,.22);overflow:hidden}
.cavat-ai-bubble--left .cavat-ai--panel{right:auto;left:0}
.cavat-ai--panel .cavat-ai__log{height:340px;max-height:50vh}
.cavat-ai__head{display:flex;justify-content:space-between;align-items:center;background:#0b2a5b;color:#fff;padding:8px 12px;font-weight:600}
.cavat-ai__head span{display:flex;align-items:center;gap:8px}
.cavat-ai__head .cavat-ai-avatar{width:30px;height:30px}
.cavat-ai__head button{all:unset;cursor:pointer;font-size:24px;line-height:1;padding:0 6px;color:#fff}
@media (max-width:480px){.cavat-ai--panel{width:calc(100vw - 32px)}}
@media (prefers-reduced-motion:no-preference){
  .cavat-ai--panel{animation:cavatpop .15s ease-out}
  .cavat-ai-bubble__launch{animation:cavatpulse 2.2s ease-out 3}
  @keyframes cavatpop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
  @keyframes cavatpulse{0%{box-shadow:0 8px 22px rgba(11,42,91,.35),0 0 0 2px #c8a24a,0 0 0 0 rgba(200,162,74,.55)}70%{box-shadow:0 8px 22px rgba(11,42,91,.35),0 0 0 2px #c8a24a,0 0 0 14px rgba(200,162,74,0)}100%{box-shadow:0 8px 22px rgba(11,42,91,.35),0 0 0 2px #c8a24a,0 0 0 0 rgba(200,162,74,0)}}
}