/* ─────────────────────────────────────────────────────────────────────────
   cert-chain — the retained Authenticode chain on an item detail page.

   A component sheet rather than a page sheet because the partial renders on
   six item types across five routes, and only some of them load
   pages/catalog.css. Styling it there would leave the chain unstyled on the
   discover and request pages with nothing to indicate why.

   Visual language follows .item-metadata, which it sits beneath.
   ───────────────────────────────────────────────────────────────────────── */

.cert-chain {
  margin-top: var(--cs-space-3);
}

.cert-chain > summary {
  display: flex;
  align-items: center;
  gap: var(--cs-space-2);
  cursor: pointer;
  list-style: none;
  user-select: none;
  font-size: var(--cs-text-xs);
  font-weight: var(--cs-weight-semibold);
  color: var(--cs-neutral-500);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--cs-space-2) 0;
}

.cert-chain > summary::-webkit-details-marker { display: none; }

.cert-chain > summary::after {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid var(--cs-neutral-400);
  margin-left: auto;
  transition: transform 0.15s;
}

.cert-chain[open] > summary::after { transform: rotate(180deg); }

.cert-chain__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.35rem;
  border-radius: 999px;
  background: var(--cs-neutral-200);
  color: var(--cs-neutral-700);
  font-size: 0.65rem;
  letter-spacing: 0;
}

/* ── The chain itself ─────────────────────────────────────────────────── */

.cert-chain__list {
  list-style: none;
  margin: var(--cs-space-3) 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--cs-space-2);
}

.cert-chain__item {
  position: relative;
  background: rgba(255, 255, 255, 0.35);
  border: 1px solid var(--cs-glass-border);
  border-radius: var(--cs-radius-lg);
  padding: var(--cs-space-3) var(--cs-space-4);
  min-width: 0;
}

/* Indent each step so leaf → root reads as a descent, not a flat list. */
.cert-chain__item--intermediate { margin-left: var(--cs-space-4); }
.cert-chain__item--root         { margin-left: calc(var(--cs-space-4) * 2); }

@media (max-width: 640px) {
  .cert-chain__item--intermediate,
  .cert-chain__item--root { margin-left: 0; }
}

.cert-chain__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--cs-space-2);
  margin-bottom: var(--cs-space-2);
}

.cert-chain__role {
  font-size: 0.625rem;
  font-weight: var(--cs-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cs-neutral-500);
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--cs-neutral-300);
  border-radius: var(--cs-radius-sm);
}

.cert-chain__cn {
  font-weight: var(--cs-weight-semibold);
  color: var(--cs-neutral-800);
  min-width: 0;
  overflow-wrap: anywhere;
}

.cert-chain__flag {
  font-size: 0.65rem;
  font-weight: var(--cs-weight-semibold);
  padding: 0.1rem 0.45rem;
  border-radius: var(--cs-radius-sm);
}

.cert-chain__flag--expired { background: var(--cs-error-bg);   color: var(--cs-error); }
.cert-chain__flag--soon    { background: var(--cs-warning-bg); color: var(--cs-warning); }
.cert-chain__flag--self    { background: var(--cs-info-bg);    color: var(--cs-info); }

/* ── Fields ───────────────────────────────────────────────────────────── */

.cert-chain__fields {
  display: grid;
  grid-template-columns: minmax(5rem, auto) 1fr;
  gap: 0.25rem var(--cs-space-3);
  margin: 0;
  font-size: var(--cs-text-xs);
}

.cert-chain__fields dt {
  color: var(--cs-neutral-500);
  font-weight: var(--cs-weight-medium);
}

.cert-chain__fields dd {
  margin: 0;
  color: var(--cs-neutral-700);
  min-width: 0;
  overflow-wrap: anywhere;
}

.cert-chain__mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: -0.01em;
}

.cert-chain__anchor { margin-top: var(--cs-space-2); }

.cert-chain__empty {
  margin: var(--cs-space-3) 0 0;
  padding: var(--cs-space-3) var(--cs-space-4);
  background: rgba(255, 255, 255, 0.35);
  border: 1px dashed var(--cs-neutral-300);
  border-radius: var(--cs-radius-lg);
  font-size: var(--cs-text-xs);
  color: var(--cs-neutral-500);
}