:root{--bhc-color:#00c26e}.bhc-launcher{position:fixed;right:24px;bottom:24px;z-index:99998;width:58px;height:58px;border:0;border-radius:50%;background:var(--bhc-color);color:#fff;font-size:25px;box-shadow:0 10px 30px rgba(0,0,0,.2);cursor:pointer}.bhc-panel{display:none;position:fixed;right:24px;bottom:94px;z-index:99999;width:370px;max-width:calc(100vw - 28px);height:570px;max-height:calc(100vh - 125px);background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 18px 55px rgba(0,0,0,.22);font-family:Inter,Segoe UI,Arial,sans-serif}.bhc-panel.open{display:flex;flex-direction:column}.bhc-panel header{display:flex;align-items:center;justify-content:space-between;background:#111;color:#fff;padding:16px 18px;border-top:5px solid var(--bhc-color)}.bhc-panel header small{display:block;opacity:.75;margin-top:3px}.bhc-close{border:0;background:transparent;color:#fff;font-size:26px;cursor:pointer}.bhc-messages{flex:1;overflow:auto;padding:16px;background:#f4f6f8}.bhc-message{max-width:82%;padding:10px 12px;border-radius:12px;margin:8px 0;white-space:pre-wrap;line-height:1.4;background:#fff;color:#111}.bhc-message.visitor{margin-left:auto;background:var(--bhc-color);color:#fff}.bhc-message.system{font-size:13px;background:#e9eef2}.bhc-message.agent{background:#111;color:#fff}.bhc-actions{padding:8px 14px;border-top:1px solid #eee}.bhc-human{border:0;background:transparent;color:#087f4c;font-weight:700;cursor:pointer}.bhc-form{display:flex;gap:8px;padding:12px;border-top:1px solid #eee}.bhc-form textarea{flex:1;resize:none;border:1px solid #ccd2d8;border-radius:9px;padding:10px;font:inherit}.bhc-form button{border:0;border-radius:9px;padding:0 17px;background:var(--bhc-color);color:#fff;font-weight:700;cursor:pointer}@media(max-width:520px){.bhc-panel{right:10px;bottom:82px;width:calc(100vw - 20px);height:70vh}.bhc-launcher{right:16px;bottom:16px}}