.term,
abbr[data-tip] {
  border-bottom: 1px dotted var(--accent);
  cursor: help;
  text-decoration: none;
}

.term:focus-visible,
abbr[data-tip]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

[data-tooltip] {
  position: fixed;
  z-index: 100;
  max-width: 28ch;
  padding: 6px 10px;
  font-size: 0.85em;
  line-height: 1.4;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  [data-tooltip] { transition: none !important; }
}