.portfolio-return {
  background: #14213d;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgb(0 0 0 / 20%);
  color: #fff;
  font: 700 13px/1 system-ui, sans-serif;
  padding: 9px 13px;
  position: fixed;
  right: 12px;
  text-decoration: none;
  top: 12px;
  z-index: 1000;
}

.portfolio-return:focus-visible {
  outline: 3px solid #e9b44c;
  outline-offset: 3px;
}

@media (max-width: 600px) {
  .portfolio-return { font-size: 12px; padding: 8px 10px; }
}