<div class="gloss-stage">
  <div class="gloss-inner">
    <p class="gloss-text">
      There is a word for the smell of rain on dry earth —
      <span class="gloss-t">
        <span class="gloss-word">petrichor</span>
        <span class="gloss-tip">
          <span class="gloss-top">
            <span class="gloss-pos">noun · meteorology</span>
            <span class="gloss-head">petrichor</span>
            <span class="gloss-ipa">/ˈpɛtrɪkɔːr/</span>
          </span>
          <span class="gloss-origin"><strong>Origin:</strong> Greek <em>petra</em> (stone) + <em>ichor</em> (the ethereal fluid said to flow through the veins of gods). Coined 1964 by Bear &amp; Thomas.</span>
          <span class="gloss-def">The pleasant, earthy scent that arises when rain falls on dry soil, produced by geosmin released from actinobacteria.</span>
          <span class="gloss-ex">
            <span class="gloss-ex-label">In use</span>
            <span class="gloss-ex-quote">"The petrichor that rose from the cracked earth was the first sign that the long drought had broken."</span>
          </span>
          <span class="gloss-syn">
            <span class="gloss-syn-pill">geosmin</span>
            <span class="gloss-syn-pill">earthy scent</span>
            <span class="gloss-syn-pill">rain smell</span>
          </span>
        </span>
      </span>
      — a sensation so specific it once had no name. Equally unnamed was
      <span class="gloss-t">
        <span class="gloss-word">sonder</span>
        <span class="gloss-tip">
          <span class="gloss-top">
            <span class="gloss-pos">noun · neologism</span>
            <span class="gloss-head">sonder</span>
            <span class="gloss-ipa">/ˈsɒndər/</span>
          </span>
          <span class="gloss-origin"><strong>Origin:</strong> Coined by John Koenig in <em>The Dictionary of Obscure Sorrows</em> (2012). Likely influenced by French <em>sonder</em> (to probe, to fathom).</span>
          <span class="gloss-def">The sudden realization that every passerby is living a life as vivid and complex as one's own — filled with ambitions, fears, and an intricate private world.</span>
          <span class="gloss-ex">
            <span class="gloss-ex-label">In use</span>
            <span class="gloss-ex-quote">"Staring out the train window, she was struck by sonder — each lit window a whole life she'd never know."</span>
          </span>
          <span class="gloss-syn">
            <span class="gloss-syn-pill">empathy</span>
            <span class="gloss-syn-pill">weltanschauung</span>
          </span>
        </span>
      </span>,
      the act of registering that strangers have entire interior worlds. We live in
      <span class="gloss-t">
        <span class="gloss-word">liminal</span>
        <span class="gloss-tip">
          <span class="gloss-top">
            <span class="gloss-pos">adjective · anthropology</span>
            <span class="gloss-head">liminal</span>
            <span class="gloss-ipa">/ˈlɪmɪnəl/</span>
          </span>
          <span class="gloss-origin"><strong>Origin:</strong> Latin <em>limen</em> (threshold). Popularised by anthropologist Arnold van Gennep (1909) to describe transitional ritual phases.</span>
          <span class="gloss-def">Occupying a position at, or on both sides of, a threshold or boundary; relating to a transitional or initial stage of a process.</span>
          <span class="gloss-ex">
            <span class="gloss-ex-label">In use</span>
            <span class="gloss-ex-quote">"The airport is the most liminal of spaces — everyone passing through on the way to somewhere else."</span>
          </span>
          <span class="gloss-syn">
            <span class="gloss-syn-pill">transitional</span>
            <span class="gloss-syn-pill">threshold</span>
            <span class="gloss-syn-pill">interstitial</span>
          </span>
        </span>
      </span>
      spaces more than we realise.
    </p>
  </div>
</div>

.gloss-stage {
  background: #fdf9f3;
  /* Top room for the dictionary card (~280px tall) popping up from
     dotted-underlined words. Glossary words can be anywhere on the
     line, so generous top is the safest choice. */
  padding: 300px 28px 40px;
  font-family: Georgia, serif;
}
.gloss-inner {
  max-width: 560px;
  margin: 0 auto;
}
.gloss-text {
  font-size: 18px;
  line-height: 1.85;
  color: #2c2416;
  margin: 0;
}
.gloss-t {
  position: relative;
  display: inline-block;
}
.gloss-word {
  cursor: help;
  border-bottom: 1.5px dotted #a08050;
  color: #6a4820;
  transition: color .15s, border-color .15s;
}
.gloss-t:hover .gloss-word {
  color: #3a2010;
  border-bottom-color: #3a2010;
}
.gloss-tip {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  width: 320px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid rgba(160, 128, 80, 0.2);
  box-shadow:
    0 8px 36px rgba(60, 40, 10, 0.13),
    0 2px 8px rgba(60, 40, 10, 0.06);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity .2s,
    transform .2s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0s linear .2s;
  z-index: 30;
  overflow: hidden;
  font-family: Georgia, serif;
  text-align: left;
  display: block;
  white-space: normal;
}
.gloss-t:hover .gloss-tip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  transition-delay: 0s;
}
.gloss-top {
  display: block;
  padding: 16px 18px 12px;
  background: #faf6ef;
  border-bottom: 1px solid rgba(160, 128, 80, 0.12);
}
.gloss-pos {
  display: block;
  font-size: 10px;
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #b09060;
  margin-bottom: 5px;
}
.gloss-head {
  display: block;
  font-size: 24px;
  font-weight: 500;
  color: #1a1008;
  line-height: 1;
  margin-bottom: 4px;
}
.gloss-ipa {
  display: block;
  font-size: 12px;
  color: #a09070;
  font-style: italic;
}
.gloss-origin {
  display: block;
  padding: 11px 18px;
  border-bottom: 1px solid rgba(160, 128, 80, 0.1);
  font-size: 11px;
  font-family: 'Inter', system-ui, sans-serif;
  color: #9a8060;
  line-height: 1.5;
}
.gloss-origin strong { color: #6a5030; font-weight: 500; }
.gloss-def {
  display: block;
  padding: 13px 18px;
  font-size: 13px;
  color: #3c2c14;
  line-height: 1.65;
  border-bottom: 1px solid rgba(160, 128, 80, 0.1);
  font-style: italic;
}
.gloss-ex {
  display: block;
  padding: 11px 18px 13px;
  font-size: 12px;
  font-family: 'Inter', system-ui, sans-serif;
  color: #8a7050;
}
.gloss-ex-label {
  display: block;
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #c0a878;
  margin-bottom: 5px;
}
.gloss-ex-quote {
  display: block;
  color: #5a4020;
  line-height: 1.5;
  font-family: Georgia, serif;
  font-style: italic;
  font-size: 13px;
}
.gloss-syn {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 9px 18px 13px;
  border-top: 1px solid rgba(160, 128, 80, 0.1);
}
.gloss-syn-pill {
  font-size: 10px;
  font-family: 'Inter', system-ui, sans-serif;
  padding: 3px 8px;
  border-radius: 20px;
  background: rgba(160, 128, 80, 0.08);
  color: #8a6840;
  border: 1px solid rgba(160, 128, 80, 0.18);
}