/* Floating FB viewer (external CSS) */
#fb-float{position:fixed;right:1rem;bottom:1rem;width:min(420px,96vw);height:min(600px,80vh);background:#fff;
box-shadow:0 10px 30px rgba(0,0,0,.25);border-radius:12px;overflow:hidden;z-index:9999;display:none}
#fb-float.show{display:block}
#fb-float header{height:42px;background:#111;color:#fff;display:flex;align-items:center;justify-content:space-between;
padding:0 .75rem;font:14px/1.2 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
#fb-float header .actions a,#fb-float header .actions button{appearance:none;background:transparent;color:#fff;border:0;
padding:.25rem .4rem;margin-left:.25rem;cursor:pointer;font:inherit;text-decoration:none;opacity:.85}
#fb-float header .actions a:hover,#fb-float header .actions button:hover{opacity:1}
#fb-float iframe{width:100%;height:calc(100% - 90px);border:0}
#fb-fallback{display:none;background:#fff2f2;border-top:1px solid #f3c2c2;color:#8a1f1f;padding:.6rem .75rem;
font:13px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
#fb-fallback .btns{margin-top:.35rem;display:flex;gap:.5rem;flex-wrap:wrap}
#fb-fallback .btn{display:inline-block;background:#111;color:#fff;padding:.4rem .6rem;border-radius:8px;
text-decoration:none;font:13px/1 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
#fb-fallback .btn.secondary{background:#444}
#fb-fallback .small{font-size:12px;color:#7a2a2a;margin-top:.25rem}
@media(max-width:640px){#fb-float{right:.5rem;left:.5rem;bottom:.5rem;width:auto;height:70vh}}