.stis-float-container{position:fixed;right:30px;bottom:30px;z-index:9999}.stis-float-btn{background:none;border:none;padding:0;cursor:pointer;outline:none;display:flex;align-items:center;justify-content:center}.stis-logo{width:64px;height:64px;-o-object-fit:contain;object-fit:contain;transition:transform .3s ease!important}.stis-chat-window{position:fixed;bottom:24px;right:24px;width:380px;max-height:460px;display:flex;flex-direction:column;background:#ffffff;border-radius:18px;box-shadow:0 8px 32px rgba(0,0,0,.18);overflow:hidden;font-family:Inter,sans-serif;z-index:9999;border:1px solid #f1f1f1}.stis-chat-header{background:linear-gradient(135deg,#0ea55a,#0c7c26);color:#fff;padding:16px 20px!important;display:flex;justify-content:space-between;align-items:center}.stis-chat-header strong{font-size:18px;letter-spacing:.3px}.stis-header-sub{font-size:12px;opacity:.9;margin-top:3px}.stis-close-btn{background:transparent;border:none;color:white;font-size:20px;cursor:pointer;transition:.2s}.stis-close-btn:hover{color:#b3fff6}.stis-chat-body{flex:1;position:relative;background:transparent!important;padding:20px 22px 80px!important;overflow-y:auto;display:flex;flex-direction:column;gap:14px;border-top:1px solid #f3f3f3;box-sizing:border-box}.stis-chat-body:after{content:"";position:absolute!important;top:50%;left:50%;transform:translate(-50%,-50%);width:140px;height:140px;background:url(/images/STIS-LOGO-4.png) 50%/contain no-repeat;opacity:.08;z-index:0;pointer-events:none}.stis-message{position:relative;z-index:1;max-width:75%;padding:12px 16px!important;border-radius:14px;font-size:14px;line-height:1.45;word-break:break-word}.stis-message.agent{background-color:#00723F;color:#ffffff;align-self:flex-start;border-top-left-radius:0;box-shadow:0 2px 3px rgba(14,165,164,.1)}.stis-message.user{background-color:#D62828;color:#ffffff;align-self:flex-end;border-top-right-radius:0;box-shadow:0 2px 3px rgba(14,165,164,.2)}.stis-msg-meta{font-size:11px;font-weight:600;margin-bottom:4px;opacity:.7}.stis-chat-input{display:flex;align-items:center;gap:8px;background:#F5F5F5;padding:10px 12px!important;border-top:1px solid #eee;position:sticky;bottom:0;left:0;width:100%}.stis-chat-input input{flex:1;padding:10px 14px;border:1px solid #ccc;border-radius:8px;font-size:14px;background:#f9f9f9;outline:none}.stis-chat-input input:focus{border-color:#0ea5a4;background:#fff}.stis-chat-input button{background-color:#D62828!important;color:#ffffff!important;border:none;border-radius:50px!important;padding:10px 20px!important;cursor:pointer;font-weight:800;font-size:18px!important;transition:all .25s ease;box-shadow:0 3px 8px rgba(214,40,40,.25)}.stis-chat-input button:hover{background-color:#b81f1f;transform:translateY(-1px);box-shadow:0 5px 12px rgba(214,40,40,.35)}.stis-chat-input button:active{transform:translateY(0);box-shadow:0 2px 5px rgba(214,40,40,.25)}.stis-chat-body::-webkit-scrollbar{width:6px}.stis-chat-body::-webkit-scrollbar-thumb{background-color:#ccc;border-radius:3px}.stis-chat-body::-webkit-scrollbar-thumb:hover{background-color:#aaa}.stis-unread{position:absolute;top:-6px;right:-6px;background-color:#D62828;color:#fff;font-size:12px;font-weight:700;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;box-shadow:0 0 4px rgba(0,0,0,.2);animation:stis-bounce .4s ease}@keyframes stis-bounce{0%{transform:scale(.6);opacity:.6}60%{transform:scale(1.2);opacity:1}to{transform:scale(1)}}@media (max-width:480px){.stis-chat-window{width:calc(100vw - 32px);right:16px;bottom:16px;height:80vh;max-height:none}.stis-chat-body{padding:16px 16px 76px}}