:root{--nexus-primary:#2563eb;--nexus-text:#ffffff;--nexus-font:-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";--nexus-window-bg:#ffffff;--nexus-messages-bg:#f9fafb;--nexus-bot-bubble-bg:#eef2f7;--nexus-bot-bubble-text:#2c3e50;--nexus-border-color:#e5e7eb}#nexus-ai-bot-container{position:fixed;bottom:20px;right:20px;z-index:999999;font-family:var(--nexus-font)}#nexus-ai-bot-toggle{width:64px;height:64px;background:var(--nexus-primary);background-image:linear-gradient(135deg,var(--nexus-primary) 0%,color-mix(in srgb,var(--nexus-primary) 70%,black) 100%);color:var(--nexus-text);border-radius:50%;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 5px 20px rgba(0,0,0,.2);transition:transform .3s cubic-bezier(.175,.885,.32,1.275),box-shadow .3s ease;overflow:hidden}#nexus-ai-bot-toggle:hover{transform:scale(1.1);box-shadow:0 8px 25px rgba(0,0,0,.25)}#nexus-ai-bot-toggle svg{position:absolute;transition:opacity .3s ease,transform .3s ease;width:28px;height:28px}#nexus-ai-bot-toggle .icon-close{opacity:0;transform:rotate(-90deg)scale(.8)}#nexus-ai-bot-toggle.is-open .icon-chat{opacity:0;transform:rotate(90deg)scale(.8)}#nexus-ai-bot-toggle.is-open .icon-close{opacity:1;transform:rotate(0)scale(1)}#nexus-ai-bot-window{position:absolute;bottom:90px;right:0;width:400px;height:75vh;max-height:650px;background:var(--nexus-window-bg);border-radius:16px;box-shadow:0 12px 50px -12px rgba(0,0,0,.3);border:1px solid var(--nexus-border-color);display:flex;flex-direction:column;overflow:hidden;transform-origin:bottom right;transition:opacity .3s ease,transform .3s ease;opacity:0;transform:scale(.9)translateY(20px);pointer-events:none}#nexus-ai-bot-window.is-open{opacity:1;transform:scale(1)translateY(0);pointer-events:auto}#nexus-ai-bot-header{display:flex;align-items:center;padding:16px 20px;background:var(--nexus-window-bg);border-bottom:1px solid var(--nexus-border-color);flex-shrink:0}.nexus-ai-bot-avatar{width:44px;height:44px;border-radius:50%;background:var(--nexus-primary);color:var(--nexus-text);margin-right:12px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600}.nexus-ai-bot-info{flex-grow:1}.nexus-ai-bot-info h3{margin:0;font-size:16px;font-weight:600;color:#1a202c}.nexus-ai-bot-info span{font-size:13px;color:#718096;display:flex;align-items:center}.nexus-ai-bot-info span::before{content:'';display:inline-block;width:8px;height:8px;background:#48bb78;border-radius:50%;margin-right:6px;animation:nexusPulse 2s infinite}@keyframes nexusPulse{0%,100%{box-shadow:0 0 rgba(72,187,120,.4)}70%{box-shadow:0 0 0 6px rgba(72,187,120,0)}}#nexus-ai-bot-clear{background:0 0;border:none;color:#a0aec0;font-size:22px;cursor:pointer;transition:color .2s}#nexus-ai-bot-clear:hover{color:#4a5568}#nexus-ai-bot-messages{flex-grow:1;overflow-y:auto;padding:24px 20px;background-color:var(--nexus-messages-bg);background-image:radial-gradient(circle,#e5e7eb 1px,transparent 1px);background-size:20px 20px}#nexus-ai-bot-messages::-webkit-scrollbar{width:6px}#nexus-ai-bot-messages::-webkit-scrollbar-track{background:0 0}#nexus-ai-bot-messages::-webkit-scrollbar-thumb{background-color:#cbd5e0;border-radius:6px}#nexus-ai-bot-messages::-webkit-scrollbar-thumb:hover{background-color:#a0aec0}.nexus-ai-bot-message{display:flex;margin-bottom:2px;animation:nexusMessageIn .5s cubic-bezier(.25,1,.5,1)}@keyframes nexusMessageIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.nexus-ai-bot-message+.nexus-ai-bot-message{margin-top:2px}.nexus-ai-bot-user-message+.nexus-ai-bot-user-message,.nexus-ai-bot-bot-message+.nexus-ai-bot-bot-message{margin-top:4px}.nexus-ai-bot-user-message a{color:#fff!important}.nexus-ai-bot-message-content{max-width:85%;padding:12px 18px;border-radius:20px;font-size:15px;line-height:1.6;word-wrap:break-word;box-shadow:0 1px 2px rgba(0,0,0,5%)}.nexus-ai-bot-message-content a{color:var(--nexus-primary);text-decoration:underline}.nexus-ai-bot-bot-message{justify-content:flex-start}.nexus-ai-bot-bot-message .nexus-ai-bot-message-content{background:var(--nexus-bot-bubble-bg);color:var(--nexus-bot-bubble-text);border-bottom-left-radius:5px}.nexus-ai-bot-user-message{justify-content:flex-end}.nexus-ai-bot-user-message .nexus-ai-bot-message-content{background:var(--nexus-primary);color:var(--nexus-text);border-bottom-right-radius:5px}#nexus-ai-bot-quick-replies{padding:8px 15px 15px;background:var(--nexus-window-bg);border-top:1px solid var(--nexus-border-color);animation:nexusQuickReplyIn .5s ease .2s both}@keyframes nexusQuickReplyIn{from{opacity:0}to{opacity:1}}.nexus-quick-reply{display:inline-block;padding:8px 16px;margin:5px 5px 0 0;border:1px solid color-mix(in srgb,var(--nexus-primary) 30%,transparent);color:var(--nexus-primary);background:color-mix(in srgb,var(--nexus-primary) 5%,transparent);border-radius:18px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease}.nexus-quick-reply:hover{background:var(--nexus-primary);color:var(--nexus-text);transform:translateY(-2px);box-shadow:0 4px 8px rgba(0,0,0,.1)}#nexus-ai-bot-input-container{display:flex;align-items:flex-end;padding:12px;background:var(--nexus-window-bg);border-top:1px solid var(--nexus-border-color);transition:border-color .2s ease}#nexus-ai-bot-input-container:focus-within{border-top-color:var(--nexus-primary)}#nexus-ai-bot-input{flex-grow:1;border:none;padding:12px;font-size:15px;outline:none;resize:none;background:0 0;max-height:120px;line-height:1.5}#nexus-ai-bot-send{width:44px;height:44px;background:var(--nexus-primary);color:var(--nexus-text);border:none;border-radius:50%;cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center;transition:filter .2s,opacity .2s}#nexus-ai-bot-send:hover{filter:brightness(1.1)}#nexus-ai-bot-send:disabled{opacity:.6;cursor:not-allowed;filter:grayscale(50%)}#nexus-ai-bot-toggle svg,#nexus-ai-bot-send svg{width:24px;height:24px}@media(max-width:500px){#nexus-ai-bot-container{bottom:0;right:0;width:100%;height:100%;pointer-events:none}#nexus-ai-bot-toggle{position:fixed;bottom:20px;right:20px;pointer-events:auto}#nexus-ai-bot-window{position:fixed;top:0;bottom:0;right:0;left:0;width:100%;height:100%;max-height:100%;border-radius:0;border:none;box-shadow:none;transform:translateY(105%);transition:transform .4s cubic-bezier(.16,1,.3,1)}#nexus-ai-bot-window.is-open{transform:translateY(0)}#nexus-ai-bot-header{padding-top:calc(env(safe-area-inset-top) + 16px)}#nexus-ai-bot-input-container{padding-bottom:calc(env(safe-area-inset-bottom) + 12px)}}.nexus-ai-bot-form-container .nexus-ai-bot-message-content{background:0 0;padding:0;box-shadow:none}#nexus-ai-bot-contact-form{background:var(--nexus-window-bg);padding:20px;border:1px solid var(--nexus-border-color);border-radius:12px}#nexus-ai-bot-contact-form h4{margin:0 0 15px;font-size:16px;font-weight:600;color:#1a202c;text-align:center}#nexus-ai-bot-contact-form input,#nexus-ai-bot-contact-form textarea{width:100%;padding:12px;margin-bottom:12px;border:1px solid var(--nexus-border-color)!important;border-radius:8px!important;font-size:14px!important;font-family:var(--nexus-font);box-sizing:border-box;color:#000!important;transition:border-color .2s,box-shadow .2s}#nexus-ai-bot-contact-form input:focus,#nexus-ai-bot-contact-form textarea:focus{outline:none;border-color:var(--nexus-primary);box-shadow:0 0 0 2px color-mix(in srgb,var(--nexus-primary) 20%,transparent)}#nexus-ai-bot-contact-form textarea{resize:vertical;min-height:80px}#nexus-ai-bot-contact-form button[type=submit]{width:100%;padding:12px;border:none;border-radius:8px;background:var(--nexus-primary);color:var(--nexus-text);font-size:15px;font-weight:600;cursor:pointer;transition:filter .2s}#nexus-ai-bot-contact-form button[type=submit]:hover{filter:brightness(1.1)}#nexus-ai-bot-contact-form button[type=submit]:disabled{opacity:.7;cursor:wait}.nexus-form-success{background-color:#f0fff4;color:#2f855a;border:1px solid #9ae6b4;padding:20px;border-radius:12px;text-align:center;font-weight:500}.nexus-mobile-close-btn{display:none;background:0 0;border:none;color:currentColor;cursor:pointer;padding:8px;border-radius:50%;transition:all .2s ease;position:relative;z-index:10}.nexus-mobile-close-btn:hover{background-color:rgba(255,255,255,.1);transform:scale(1.1)}.nexus-mobile-close-btn:active{transform:scale(.95)}.nexus-mobile-close-btn svg{display:block;width:20px;height:20px;stroke-width:2.5}@media(max-width:768px){.nexus-mobile-close-btn{display:inline-flex;align-items:center;justify-content:center}#nexus-ai-bot-clear{display:none}#nexus-ai-bot-header{display:flex;align-items:center;gap:12px}.nexus-ai-bot-info{flex:1}#nexus-ai-bot-window{position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;width:100%!important;height:100%!important;max-width:none!important;max-height:none!important;border-radius:0!important;z-index:999999}#nexus-ai-bot-container.open #nexus-ai-bot-toggle{display:none}}@media(max-width:480px){.nexus-mobile-close-btn{padding:12px}.nexus-mobile-close-btn svg{width:18px;height:18px}}