.header-chat{display:none}
@media(max-width:650px){
  .header-chat:not([hidden]){display:inline-flex;align-items:center;justify-content:center;flex:none;width:44px;height:44px;padding:0;border:0;background:transparent;color:var(--ink,#252525);border-radius:6px;cursor:pointer}
  .header-chat .icon{width:22px;height:22px}
  .header-chat:hover{background:var(--surface,#f5f5f5)}
  .header-chat:focus-visible{outline:3px solid var(--focus,#1565ad);outline-offset:2px}
  .site-header:has(.header-chat:not([hidden])) .brand-logo{width:clamp(138px,40vw,175px)}
  .site-header:has(.header-chat:not([hidden])) .wordmark{flex:0 1 175px;min-width:0}
  .site-header:has(.header-chat:not([hidden])) .header-inner{gap:8px}
  .site-header:has(.header-chat:not([hidden])) .header-actions{gap:4px;flex:none}
  body:has(.header-chat:not([hidden])) #buydtf-chat-root{--buydtf-chat-launcher-display:none}
}