.heading-with-info {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.heading-with-info > :is(h1, h2, h3) {
  min-width: 0;
  margin: 0;
}
.heading-info {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 44px;
  width: 44px;
  min-height: 44px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: inherit;
  background: transparent;
  font: 700 14px/1 system-ui;
  cursor: pointer;
}
.heading-info::before {
  content: "i";
  border: 1.5px solid currentColor;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
}
.heading-info:hover {
  background: var(--backgroundSecondary);
}
.heading-info:focus-visible {
  outline: 3px solid var(--link);
  outline-offset: 2px;
}
.heading-popover {
  max-width: min(380px, calc(100vw - 32px));
  padding: 20px;
  border: 1px solid var(--borderLight);
  border-radius: 16px;
  background: var(--surface);
  color: var(--text);
  font:
    400 15px/1.5 Supermolot,
    system-ui,
    sans-serif;
  box-shadow: 0 8px 32px #0003;
}