:root{--ns-primary: #01696f;--ns-text: #333;--ns-bg-light: rgba(255, 255, 255, .85);--ns-bg-bubble: #f1f1f1}.nexus-sale-widget-container{position:fixed;bottom:20px;right:20px;z-index:999999;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.nexus-sale-chat-button{width:60px;height:60px;border-radius:50%;border:none;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 12px #00000026;transition:transform .3s cubic-bezier(.175,.885,.32,1.275),box-shadow .3s ease}.nexus-sale-chat-button:hover{transform:scale(1.1);box-shadow:0 6px 16px #0003}.nexus-sale-chat-window{width:350px;height:500px;max-height:calc(100vh - 40px);background:var(--ns-bg-light);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:16px;box-shadow:0 10px 30px #00000026;display:flex;flex-direction:column;overflow:hidden;border:1px solid rgba(255,255,255,.4);transform-origin:bottom right;animation:ns-fade-in-up .3s ease-out forwards}@keyframes ns-fade-in-up{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.nexus-sale-chat-header{padding:16px;color:#fff;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 10px #0000001a;border-bottom:1px solid rgba(255,255,255,.1)}.nexus-sale-chat-header h3{margin:0;font-size:16px;font-weight:600;letter-spacing:.5px}.nexus-sale-chat-header button{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;transition:background .2s}.nexus-sale-chat-header button:hover{background:#fff3!important}.nexus-sale-chat-messages{flex:1;padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.nexus-sale-chat-messages::-webkit-scrollbar{width:6px}.nexus-sale-chat-messages::-webkit-scrollbar-thumb{background:#0003;border-radius:3px}.nexus-sale-message{max-width:85%;padding:10px 14px;border-radius:14px;font-size:14px;line-height:1.4;word-wrap:break-word;animation:ns-fade-in .2s ease-out}@keyframes ns-fade-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.nexus-sale-message.sent{align-self:flex-end;background:var(--ns-primary);color:#fff;border-bottom-right-radius:4px}.nexus-sale-message.received{align-self:flex-start;background:var(--ns-bg-bubble);color:var(--ns-text);border-bottom-left-radius:4px}.nexus-sale-message.system{align-self:center;background:#0000000d;color:#666;font-size:12px;padding:6px 12px;border-radius:20px;text-align:center}.nexus-sale-chat-input{display:flex;padding:12px;background:#ffffffe6;border-top:1px solid rgba(0,0,0,.05);gap:8px}.nexus-sale-chat-input input{flex:1;border:1px solid #e0e0e0;border-radius:20px;padding:10px 16px;font-size:14px;outline:none;background:#f8f8f8;transition:border-color .2s,background .2s}.nexus-sale-chat-input input:focus{border-color:var(--ns-primary);background:#fff}.nexus-sale-chat-input button{border:none;border-radius:20px;color:#fff;padding:0 16px;font-weight:600;cursor:pointer;transition:opacity .2s}.nexus-sale-chat-input button:hover{opacity:.9}