html,body { margin:0; font-family:Arial,sans-serif; background:#edf7fb; color:#17354a; }
#exercise > p,#exercise > a { margin:24px; }
/* Shell adaptation only. The approved stage, feed and audio behavior remain unchanged. */
.f6-conversation .tur-topbar h3 { font-size:24px; letter-spacing:0; }
.f6-conversation .tur-topbar small { letter-spacing:0; }
.f6-conversation .chat-feed:focus-visible { outline:3px solid #e3a52a; outline-offset:-3px; }
@media(max-width:700px) { .f6-conversation .tur-topbar h3 { font-size:19px; } }