/* Shared audience switch: brand navy, Verdana, restrained 4px radius. */
.repo-header .repo-return { margin-top: 8px; }
.repo-header a.audience-switch, .site-header a.audience-switch {
 display:inline-flex; align-items:center; justify-content:center;
 box-sizing:border-box; min-height:44px; max-width:100%; padding:11px 18px;
 border:1px solid #1b325f; border-radius:4px; background:#1b325f; color:#ffffff;
 font:700 14px/1.4 Verdana,Arial,Helvetica,sans-serif; text-align:center;
 text-decoration:none; box-shadow:0 2px 4px rgba(27,50,95,.12);
 transition:background-color .18s ease,box-shadow .18s ease;
}
.repo-header a.audience-switch:hover,.site-header a.audience-switch:hover {
 background:#284d7a; border-color:#284d7a; color:#ffffff; text-decoration:none;
 box-shadow:0 3px 7px rgba(27,50,95,.18);
}
.repo-header a.audience-switch:focus-visible,.site-header a.audience-switch:focus-visible {
 outline:3px solid #497fa5; outline-offset:3px;
}
.site-header .audience-switch-row {margin-top:12px;display:flex;justify-content:flex-end;width:100%}
@media(max-width:768px){
 .repo-header .repo-return,.site-header .audience-switch-row {width:100%;display:flex;justify-content:center}
 .repo-header a.audience-switch,.site-header a.audience-switch {font-size:13px;padding:11px 16px}
}
@media(prefers-reduced-motion:reduce){a.audience-switch{transition:none!important}}

/* Option 05: source Refund Policy banner-inspired CSS treatment. */
.repo-header a.audience-switch,.site-header a.audience-switch {
 background:linear-gradient(180deg,#496a90 0%,#33557e 46%,#1c3a61 52%,#132b4b 100%);border:1px solid #7a95b4;border-radius:9px;
 color:#fff;font-family:Georgia,'Times New Roman',serif;font-size:16px;
 font-weight:700;line-height:1.35;padding:10px 18px;min-height:44px;
 box-shadow:inset 0 1px 1px #ffffff88,inset 0 -1px 1px #0006,0 3px 5px #203b5f44;text-shadow:0 1px 1px #0009;
 transition:box-shadow .18s ease,border-color .18s ease;
}
.repo-header a.audience-switch:hover,.site-header a.audience-switch:hover {
 background:linear-gradient(180deg,#55799e 0%,#3d638c 46%,#284c72 52%,#1c3a60 100%);border-color:#7a95b4;color:#fff;
 box-shadow:inset 0 1px 1px #ffffff88,inset 0 -1px 1px #0006,0 3px 5px #203b5f44;text-decoration:none;
}
.repo-header a.audience-switch:active,.site-header a.audience-switch:active {
 box-shadow:inset 0 2px 4px #0006,0 1px 2px #1b325f33;
}
@media(max-width:768px){.repo-header a.audience-switch,.site-header a.audience-switch {font-size:15px;padding:10px 16px}}