.verify-challenge-preview,
.verify-challenge-shell{
  display: grid;
  gap: 1rem;
  padding: 1.15rem;
}
.verify-challenge-preview-grid{
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr);
  gap: 1rem;
}
.verify-challenge-chip-row,
.challenge-rail{
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
}
.verify-challenge-chip{
  display: inline-flex;
  align-items: center;
  padding: .5rem .72rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.05);
  font-size: .86rem;
}
:root[data-theme="light"] .verify-challenge-chip{
  border-color: rgba(17,30,59,.08);
  background: rgba(255,255,255,.82);
}
.verify-challenge-ladder{
  display: grid;
  gap: .75rem;
}
.verify-challenge-ladder .verify-step{
  padding: .85rem .95rem;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
}
:root[data-theme="light"] .verify-challenge-ladder .verify-step{
  background: rgba(255,255,255,.82);
  border-color: rgba(17,30,59,.08);
}
.verify-challenge-page .hero{
  padding-top: 3.6rem;
}
.verify-challenge-shell{
  grid-template-columns: 260px minmax(0, 1fr) 340px;
}
.challenge-rail-wrap,
.challenge-center,
.challenge-side{
  min-width: 0;
}
.challenge-rail{
  flex-direction: column;
}
.challenge-scenario-btn{
  appearance: none;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  color: inherit;
  text-align: left;
  cursor: pointer;
  padding: .95rem 1rem;
  border-radius: 20px;
  display: grid;
  gap: .35rem;
}
.challenge-scenario-btn small{
  opacity: .72;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.challenge-scenario-btn.is-active{
  border-color: rgba(124,92,255,.46);
  background: rgba(124,92,255,.14);
  box-shadow: 0 10px 24px rgba(124,92,255,.14);
}
:root[data-theme="light"] .challenge-scenario-btn{
  background: rgba(255,255,255,.82);
  border-color: rgba(17,30,59,.08);
}
.challenge-panel{
  display: none;
}
.challenge-panel.is-active{
  display: block;
}
.challenge-scene-card,
.challenge-observed-card,
.challenge-expected-card,
.challenge-downloads{
  padding: 1rem;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
}
:root[data-theme="light"] .challenge-scene-card,
:root[data-theme="light"] .challenge-observed-card,
:root[data-theme="light"] .challenge-expected-card,
:root[data-theme="light"] .challenge-downloads{
  background: rgba(255,255,255,.84);
  border-color: rgba(17,30,59,.08);
}
.challenge-main-stack,
.challenge-side{
  display: grid;
  gap: 1rem;
}
.challenge-meta-grid{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .8rem;
  margin-top: .9rem;
}
.challenge-meta-cell{
  padding: .75rem .8rem;
  border-radius: 18px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
}
:root[data-theme="light"] .challenge-meta-cell{
  background: rgba(255,255,255,.72);
  border-color: rgba(17,30,59,.08);
}
.challenge-observed-head,
.challenge-expected-head{
  display: flex;
  justify-content: space-between;
  gap: .8rem;
  align-items: center;
  margin-bottom: .75rem;
}
.challenge-outcome-chip{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4.4rem;
  padding: .45rem .75rem;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: .04em;
  border: 1px solid rgba(255,255,255,.10);
}
.challenge-outcome-chip[data-decision="PASS"]{
  color: #d8ffe7;
  background: rgba(34,197,94,.16);
  border-color: rgba(34,197,94,.36);
}
.challenge-outcome-chip[data-decision="HOLD"]{
  color: #eef2ff;
  background: rgba(124,92,255,.18);
  border-color: rgba(124,92,255,.36);
}
.challenge-outcome-chip[data-decision="FAIL"]{
  color: #ffe7ea;
  background: rgba(239,68,68,.16);
  border-color: rgba(239,68,68,.36);
}
.challenge-list{
  display: grid;
  gap: .55rem;
  padding-left: 1rem;
}
.challenge-reason-line{
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.challenge-download-row{
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: .85rem;
}
.challenge-match-note{
  margin-top: .85rem;
  font-size: .94rem;
}
.challenge-rule-strip{
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
}
.challenge-rule-chip{
  padding: .48rem .68rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.05);
  font-size: .84rem;
}
:root[data-theme="light"] .challenge-rule-chip{
  background: rgba(255,255,255,.78);
  border-color: rgba(17,30,59,.08);
}
@media (max-width: 1080px){
  .verify-challenge-preview-grid,
  .verify-challenge-shell{
    grid-template-columns: 1fr;
  }
}