/* v20: flow fixes found walking the page as a visitor (2026-09-27) */
@media (max-width:600px){
 /* The chat opened with no way out on phones: the × is hidden below 600px and
    the header back arrow only appeared once a conversation had started. */
 body.v9-chat-open .chat-back{display:grid!important;place-items:center;width:34px;height:34px;font-size:22px;color:#cfd8dc}
 /* Opened from a "Build my…" button, the composer turned cream while its
    question stayed white on top of it. Keep the intro composer dark until the
    first message is sent. */
 body.chat-open .workspace:not(.is-active) .composer{background:transparent;border-top:0}
}
#hero-sub{display:none!important}