.tsai-webchat{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;--tsai-primary:#465cff;--tsai-primary-2:#3151f4;--tsai-ink:#171a27;--tsai-muted:#7b8191;box-sizing:border-box;-webkit-font-smoothing:antialiased}
.tsai-webchat *{box-sizing:border-box}.tsai-webchat[hidden],.tsai-webchat *[hidden]{display:none!important}
.tsai-webchat button,.tsai-webchat textarea,.tsai-webchat input{font:inherit}

/* Floating launcher - giữ nguyên bản cũ */
.tsai-webchat-floating{position:fixed;bottom:70px;z-index:999999}
.tsai-webchat-floating.tsai-pos-right{right:-3px}.tsai-webchat-floating.tsai-pos-left{left:18px}
.tsai-launch-wrap{display:flex;align-items:center;gap:10px}.tsai-pos-left .tsai-launch-wrap{flex-direction:row-reverse}
.tsai-launch-label{background:#fff;color:#242737;border:1px solid rgba(28,31,45,.07);border-radius:14px;padding:10px 13px;font-size:12.5px;font-weight:700;box-shadow:0 12px 34px rgba(23,27,42,.14);white-space:nowrap}
.tsai-chat-launch{width:60px;height:60px;border-radius:50%;border:0;background:linear-gradient(145deg,var(--tsai-primary),#3046dc);box-shadow:0 16px 38px rgba(52,72,221,.34);cursor:pointer;position:relative;display:grid;place-items:center;padding:0;transition:transform .18s ease,box-shadow .18s ease}
.tsai-chat-launch:hover{transform:translateY(-2px);box-shadow:0 20px 46px rgba(52,72,221,.4)}
.tsai-chat-launch svg{width:29px;height:29px;fill:#fff}.tsai-chat-launch svg circle{fill:#fff}
.tsai-online-dot{position:absolute;width:13px;height:13px;border:2px solid #fff;border-radius:50%;background:#25d486;right:2px;top:3px;box-shadow:0 2px 7px rgba(0,0,0,.17)}
.tsai-unread-dot{position:absolute;min-width:20px;height:20px;padding:0 5px;border-radius:10px;background:#ff3f55;color:#fff;font-size:10px;line-height:16px;font-weight:800;right:-4px;top:-5px;border:2px solid #fff;display:grid;place-items:center}

/* Popup window based on uploaded professional HTML */
.tsai-chat-window{width:448px;height:min(888px,calc(100dvh - 56px));border-radius:18px;background:#fff;overflow:hidden;box-shadow:0 28px 70px rgba(29,35,63,.16),0 8px 24px rgba(29,35,63,.08);border:1px solid rgba(228,230,237,.95);display:flex;flex-direction:column}
.tsai-webchat-floating .tsai-chat-window{position:fixed;right:28px;bottom:28px}
.tsai-webchat-floating.tsai-pos-left .tsai-chat-window{right:auto;left:28px}
.tsai-webchat-inline .tsai-chat-window{position:relative;max-width:100%;margin:0 auto}

/* Welcome screen */
.tsai-chat-home{height:100%;min-height:0;background:#fff;display:flex;flex-direction:column}
.tsai-home-hero{height:214px;flex:0 0 214px;padding:34px 34px 30px;color:#fff;background:radial-gradient(circle at 14% 20%,rgba(255,255,255,.10),transparent 25%),linear-gradient(135deg,var(--tsai-primary) 0%,#3848ee 72%,#4354f3 100%);position:relative}
.tsai-home-topline{display:flex;align-items:center;justify-content:space-between;height:55px}
.tsai-team-avatars{display:flex;align-items:center;height:55px;position:relative}
.tsai-team-avatar{width:51px;height:51px;border-radius:50%;object-fit:cover;border:2px solid #fff;background:#eef0f5;box-shadow:0 1px 2px rgba(0,0,0,.12);display:grid;place-items:center;flex:0 0 auto;font-weight:800;font-size:14px;color:#fff;overflow:hidden;user-select:none}
.tsai-team-avatar img{width:100%;height:100%;object-fit:cover}.tsai-team-avatar+.tsai-team-avatar{margin-left:-10px}
.tsai-team-avatar.is-main{background:linear-gradient(145deg,#6174ff,#4357f6)}.tsai-avatar-vt{background:linear-gradient(145deg,#28b8a9,#139487)!important}.tsai-avatar-cs{background:linear-gradient(145deg,#ff9b5d,#f27438)!important}.tsai-avatar-tt{background:linear-gradient(145deg,#6174ff,#4357f6)!important}
.tsai-team-online{position:absolute;width:14px;height:14px;right:-2px;bottom:1px;border-radius:50%;background:#2ecc59;border:2px solid #fff}
.tsai-home-actions{display:flex;align-items:center;gap:22px;color:#fff}.tsai-home-more{font-size:19px;font-weight:900;letter-spacing:2px;line-height:1;transform:translateY(-3px)}
.tsai-home-close,.tsai-chat-close{width:28px;height:28px;border:0;background:transparent;color:inherit;padding:0;display:grid;place-items:center;cursor:pointer}
.tsai-home-close svg,.tsai-chat-close svg{width:25px;height:25px;stroke:currentColor;stroke-width:1.8}
.tsai-home-hero h2{font-size:29px;font-weight:760;letter-spacing:-.6px;margin:25px 0 8px;line-height:1.12}.tsai-home-hero p{font-size:20px;color:rgba(255,255,255,.90);margin:0;line-height:1.35}
.tsai-home-sheet{height:calc(100% - 204px);margin-top:-10px;border-radius:13px 13px 0 0;background:#fff;position:relative;padding:26px 25px 18px;overflow:auto;scrollbar-width:thin;scrollbar-color:#d9dde7 transparent}
.tsai-home-sheet::-webkit-scrollbar{width:5px}.tsai-home-sheet::-webkit-scrollbar-thumb{background:#d9dde7;border-radius:999px}

.tsai-response-card{min-height:101px;background:linear-gradient(135deg,#f8f8fd,#f4f5fb);border-radius:12px;padding:20px 20px 18px 72px;position:relative;margin-bottom:19px}
.tsai-response-icon{position:absolute;left:22px;top:21px;width:30px;height:30px;border:2px solid var(--tsai-primary);border-radius:50%;display:grid;place-items:center;color:var(--tsai-primary);box-shadow:0 0 0 5px rgba(78,96,255,.05)}
.tsai-response-icon:before{content:"";position:absolute;width:7px;height:2px;background:currentColor;transform:translate(3px,-2px) rotate(90deg);transform-origin:left center}.tsai-response-icon:after{content:"";position:absolute;width:6px;height:2px;background:currentColor;transform:translate(2px,2px) rotate(15deg);transform-origin:left center}
.tsai-response-card strong{display:block;font-size:15px;margin-bottom:7px;color:#1d2028}.tsai-response-card span:not(.tsai-response-icon){display:block;color:#666d7a;font-size:15px;line-height:1.55}

.tsai-start-card{border:1px solid #e4e6ec;border-radius:12px;padding:18px;box-shadow:0 2px 7px rgba(27,34,62,.035);background:#fff;margin-bottom:20px}.tsai-start-card h3{font-size:18px;margin:0 0 14px;color:#171a22}.tsai-start-status{display:flex;align-items:center;gap:18px;margin-bottom:15px}.tsai-start-avatars{display:flex;align-items:center;position:relative;flex:0 0 auto}.tsai-start-avatar{width:43px;height:43px;border-radius:50%;border:2px solid #fff;display:grid;place-items:center;color:#fff;font-size:12px;font-weight:800;box-shadow:0 1px 2px rgba(0,0,0,.10)}.tsai-start-avatar+.tsai-start-avatar{margin-left:-9px}.tsai-start-online{position:absolute;width:12px;height:12px;right:-1px;bottom:1px;border-radius:50%;background:#2ecc59;border:2px solid #fff}.tsai-start-copy{font-size:14px;line-height:1.5;color:#636a78}
.tsai-start-chat{height:54px;width:100%;border:0;border-radius:8px;background:linear-gradient(100deg,var(--tsai-primary),#3d4bef);color:#fff;font-size:15px;font-weight:650;display:flex;justify-content:center;align-items:center;position:relative;box-shadow:0 5px 14px rgba(63,80,242,.15);cursor:pointer;transition:.18s ease}.tsai-start-chat:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(63,80,242,.20)}.tsai-start-chat svg{position:absolute;right:19px;width:24px;height:24px;fill:#fff}

.tsai-home-topics>strong{display:block;font-size:14px;font-weight:750;margin:24px 0 12px 18px;color:#1d2028}.tsai-topic-list{display:grid;gap:6px}.tsai-home-topic{height:48px;border:1px solid #e2e4eb;border-radius:8px;background:#fff;display:flex;align-items:center;padding:0 14px 0 18px;gap:14px;color:#252831;font-size:14px;cursor:pointer;transition:.16s ease;text-align:left}.tsai-home-topic:hover{background:#f8f9ff;border-color:#cfd5ff}.tsai-home-topic .tsai-topic-icon{font-size:20px;width:20px;text-align:center}.tsai-home-topic b{font-weight:520;flex:1}.tsai-home-topic svg{margin-left:auto;width:17px;height:17px;stroke:#8e94a1;stroke-width:2}.tsai-home-topic.is-selected{border-color:#b7c0ff;background:#f5f7ff}
.tsai-home-footer{text-align:center;color:#a1a6b2;font-size:12px;margin-top:25px;padding-bottom:4px}.tsai-home-footer span{margin:0 5px;color:#5064ff}

/* Conversation */
.tsai-chat-conversation{height:100%;min-height:0;display:flex;flex-direction:column;background:#fff}.tsai-web-header{height:89px;flex:0 0 89px;background:linear-gradient(90deg,var(--tsai-primary),#3445ed);color:#fff;padding:18px 22px;display:flex;align-items:center;gap:13px}
.tsai-chat-back{border:0;background:transparent;color:#fff;width:27px;height:27px;padding:0;display:grid;place-items:center;cursor:pointer}.tsai-chat-back svg{width:25px;height:25px;stroke:currentColor;stroke-width:1.9}
.tsai-header-avatar-wrap{position:relative;display:inline-flex}.tsai-web-avatar{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#8b69f8,#6849df);color:#fff;font-weight:800;border:2px solid rgba(255,255,255,.95);overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,.12)}.tsai-web-avatar img{width:100%;height:100%;object-fit:cover}.tsai-web-avatar span{font-size:13px}.tsai-header-avatar-wrap>i{position:absolute;width:12px;height:12px;right:0;bottom:1px;border-radius:50%;background:#2ecc59;border:2px solid #fff}
.tsai-web-headcopy{display:flex;flex-direction:column;gap:2px;min-width:0}.tsai-web-headcopy strong{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tsai-web-headcopy span{font-size:14px;color:rgba(255,255,255,.9)}.tsai-conversation-actions{margin-left:auto;display:flex;gap:19px;align-items:center}.tsai-header-more{font-size:19px;letter-spacing:2px;line-height:1;transform:translateY(-3px)}

.tsai-chat-body{height:calc(100% - 89px);display:grid;grid-template-rows:1fr auto auto;background:#fff;min-height:0}.tsai-web-messages{overflow:auto;padding:27px 24px 12px;scroll-behavior:smooth;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#d9dde7 transparent}.tsai-web-messages::-webkit-scrollbar{width:5px}.tsai-web-messages::-webkit-scrollbar-thumb{background:#d9dde7;border-radius:999px}.tsai-conversation-day{text-align:center;color:#7f8591;font-size:13px;margin:2px 0 28px}
.tsai-msg-row{display:flex;align-items:flex-end;gap:10px;margin:0 0 16px}.tsai-msg-row.agent{padding-right:86px}.tsai-msg-row.user{justify-content:flex-end;padding-left:108px}.tsai-msg-avatar{width:39px;height:39px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;color:#fff;font-size:11px;font-weight:800;background:linear-gradient(145deg,#8b69f8,#6849df);border:2px solid #fff;box-shadow:0 1px 3px rgba(0,0,0,.12);position:relative}.tsai-msg-avatar i{position:absolute;width:10px;height:10px;right:-1px;bottom:0;border-radius:50%;background:#2ecc59;border:2px solid #fff}.tsai-msg-wrap{max-width:100%}.tsai-web-bubble{padding:13px 16px;border-radius:14px;font-size:14px;line-height:1.48;letter-spacing:.01px;white-space:pre-wrap;word-break:break-word}.tsai-msg-row.agent .tsai-web-bubble{background:#f2f3f7;border-bottom-left-radius:5px;color:#1b1d22}.tsai-msg-row.user .tsai-web-bubble{background:linear-gradient(120deg,var(--tsai-primary),#3d4eed);color:#fff;border-bottom-right-radius:5px}.tsai-msg-meta{font-size:12px;color:#a0a5b1;margin-top:7px}.tsai-msg-row.user .tsai-msg-meta{text-align:right}.tsai-msg-ticks{margin-left:8px;color:#9ba2ae;font-weight:700}.tsai-msg-row.agent.human .tsai-msg-meta:after{content:" • Nhân viên"}
.tsai-web-bubble.typing{min-width:54px;min-height:38px;padding:11px 15px;display:flex;align-items:center;justify-content:center}.tsai-typing-dots{display:inline-flex;align-items:center;gap:4px;height:14px}.tsai-typing-dots i{display:block;width:6px;height:6px;border-radius:50%;background:#8c919d;animation:tsaiTypingDot 1.05s infinite ease-in-out}.tsai-typing-dots i:nth-child(2){animation-delay:.14s}.tsai-typing-dots i:nth-child(3){animation-delay:.28s}@keyframes tsaiTypingDot{0%,60%,100%{transform:translateY(0);opacity:.35}30%{transform:translateY(-4px);opacity:1}}
.tsai-web-bubble.error{background:#fff4f4!important;border:1px solid #f0d6d6;color:#6a3c3c!important;box-shadow:none}

.tsai-web-form{padding:0 22px 14px;background:#fff}.tsai-input-shell{min-height:56px;border:1px solid #dfe2ea;border-radius:11px;display:flex;align-items:flex-end;padding:7px 10px 7px 18px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.01);transition:.16s ease}.tsai-input-shell:focus-within{border-color:#b8c1ff;box-shadow:0 0 0 3px rgba(67,87,246,.06)}.tsai-web-form textarea{flex:1;resize:none!important;border:0!important;outline:0!important;box-shadow:none!important;background:transparent!important;border-radius:0!important;padding:9px 0!important;min-height:40px!important;max-height:112px!important;font-size:14px!important;line-height:1.45!important;margin:0!important;color:#24272f;min-width:0}.tsai-web-form textarea::placeholder{color:#a1a6b2}.tsai-composer-actions{display:flex;gap:10px;align-items:center;flex:0 0 auto;margin-left:8px}.tsai-composer-actions button{border:0;background:transparent;padding:0;width:26px;height:34px;color:#858c99;display:grid;place-items:center;cursor:pointer}.tsai-composer-actions svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.8}.tsai-composer-actions .tsai-send-button svg{fill:#aeb7ff;stroke:none}.tsai-composer-actions .tsai-send-button:not(:disabled):hover svg{fill:var(--tsai-primary)}.tsai-composer-actions button:disabled{opacity:.4}.tsai-chat-brand{height:38px;text-align:center;color:#a1a6b2;font-size:12px;display:grid;place-items:start center;background:#fff}

/* Optional pre-chat form */
.tsai-prechat{flex:1;padding:30px 26px;background:#fff;display:flex;flex-direction:column;justify-content:center}.tsai-prechat-icon{font-size:32px;margin-bottom:8px}.tsai-prechat>strong{font-size:19px;color:#252833}.tsai-prechat>p{font-size:13px;line-height:1.55;color:#777b85;margin:8px 0 18px}.tsai-profile-form{display:grid;gap:11px}.tsai-profile-form label span{display:block;font-size:11px;font-weight:700;color:#60636c;margin:0 0 5px 2px}.tsai-profile-form input{width:100%;height:44px;border:1px solid #e1e3e8;border-radius:11px;padding:0 13px;font-size:13px;outline:none;background:#fff}.tsai-profile-form input:focus{border-color:#b8c1ff;box-shadow:0 0 0 3px rgba(67,87,246,.06)}.tsai-profile-form button{height:46px;border:0;border-radius:9px;background:var(--tsai-primary);color:#fff;font-weight:750;cursor:pointer;margin-top:3px}.tsai-profile-form button:disabled{opacity:.5}

@media(max-width:700px){
  .tsai-webchat-floating{right:8px!important;left:auto!important;bottom:70px}
  .tsai-launch-label{display:none}.tsai-chat-launch{width:55px;height:55px}
  .tsai-webchat-floating .tsai-chat-window{position:fixed;right:10px!important;left:10px!important;bottom:10px;width:auto;height:calc(100dvh - 20px);max-height:none;border-radius:16px}
  .tsai-home-hero{height:195px;flex-basis:195px;padding:28px 24px 24px}.tsai-home-sheet{height:calc(100% - 185px);padding:22px 18px 16px}.tsai-home-hero h2{font-size:27px;margin-top:20px}.tsai-home-hero p{font-size:17px}.tsai-home-topics>strong{margin-left:4px}
  .tsai-web-messages{padding:22px 16px 10px}.tsai-msg-row.agent{padding-right:48px}.tsai-msg-row.user{padding-left:54px}.tsai-web-form{padding:0 14px 10px}.tsai-chat-brand{height:30px}.tsai-start-card{padding:16px}
}
@media(max-width:380px){.tsai-home-hero{padding-left:20px;padding-right:20px}.tsai-home-sheet{padding-left:14px;padding-right:14px}.tsai-response-card{padding-right:14px}.tsai-start-copy{font-size:13px}.tsai-home-topic{font-size:13px}}
@media(max-height:760px) and (min-width:701px){.tsai-webchat-floating .tsai-chat-window{height:calc(100dvh - 24px);bottom:12px}}
@media(prefers-reduced-motion:reduce){.tsai-chat-launch,.tsai-start-chat,.tsai-home-topic{transition:none}.tsai-typing-dots i{animation:none}}