Detect hover across input types

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hover describes the primary input. any-hover asks whether at least one connected input can hover, which matters on hybrid devices.

@media (any-hover: hover) and (any-pointer: fine) {
  .tooltip-trigger:hover .tooltip {
    display: block;
  }
}

Hover must not be the only way to reveal or operate something. Keyboard focus and touch still need equivalent behavior.