/* --- toast / progress --- */
  .toast{
    position:fixed; left:50%; bottom:96px; transform:translateX(-50%) translateY(8px); z-index:60;
    background:var(--surface-elevated); border:1px solid var(--hairline); border-radius:var(--r-md);
    padding:var(--s-sm) var(--s-md); font-size:14px; color:var(--body-strong);
    opacity:0; pointer-events:none; transition:opacity .18s, transform .18s var(--ez);
  }
  .toast.show{opacity:1; transform:translateX(-50%)}
  .prog{position:fixed; top:0; left:0; height:2px; width:0; background:var(--primary); z-index:70;
    transition:width .25s ease, opacity .3s}