/* Avatar tondi per navbar / UI */
.avatar-round {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  display: inline-block;
  background: #fff;
  border: 2px solid rgba(255,255,255,.25);
  box-shadow: 0 0 0 1px rgba(0,0,0,.05);
  vertical-align: middle;
}

/* variant piccola (puoi riusarla ovunque) */
.avatar-sm { width: 28px; height: 28px; }
.avatar-md { width: 40px; height: 40px; }
.avatar-lg { width: 64px; height: 64px; }