/**
 * NAV-5: related-list rail + hover popout.
 * Tokens come from erpal-tokens.css (light/dark aware).
 */

.erpal-relrail {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 16px;
  z-index: 30;
}

.erpal-relrail__chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  font: 600 0.8rem/1 var(--erpal-font, system-ui, sans-serif);
  color: var(--erpal-text, #20304a);
  background: var(--erpal-surface, #fff);
  border: 1px solid var(--erpal-border, #d8dee9);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.12s ease, box-shadow 0.12s ease, transform 0.12s ease;
}
.erpal-relrail__chip:hover,
.erpal-relrail__chip.is-open {
  border-color: var(--erpal-accent, #1d62f0);
  box-shadow: 0 2px 10px rgb(29 98 240 / 0.14);
  transform: translateY(-1px);
}
.erpal-relrail__chip.is-empty { opacity: 0.55; }

.erpal-relrail__count {
  min-width: 1.5em;
  padding: 2px 6px;
  text-align: center;
  font-size: 0.7rem;
  color: var(--erpal-accent, #1d62f0);
  background: var(--erpal-accent-soft, #e8effd);
  border-radius: 999px;
}
.erpal-relrail__chip.is-empty .erpal-relrail__count {
  color: var(--erpal-muted, #8a94a6);
  background: var(--erpal-surface-2, #eef1f6);
}

/* ---- the peek panel ---- */
.erpal-relrail__popout {
  position: absolute;
  top: calc(100% + 8px);
  width: min(560px, 100%);
  max-height: 360px;
  overflow: auto;
  padding: 14px 16px;
  background: var(--erpal-surface, #fff);
  border: 1px solid var(--erpal-border, #d8dee9);
  border-radius: 12px;
  box-shadow: 0 14px 38px rgb(16 30 54 / 0.18);
}
.erpal-relrail__popout h2 {
  margin: 0 0 8px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--erpal-muted, #8a94a6);
}
.erpal-relrail__popout table { width: 100%; font-size: 0.82rem; }
.erpal-relrail__popout .erpal-relrail__empty {
  margin: 4px 0 0;
  font-size: 0.82rem;
  color: var(--erpal-muted, #8a94a6);
}

/* flash highlight when jumping to the real block */
.erpal-relrail__flash {
  animation: erpal-relflash 1.2s ease;
}
@keyframes erpal-relflash {
  0% { box-shadow: 0 0 0 3px var(--erpal-accent, #1d62f0); }
  100% { box-shadow: 0 0 0 0 transparent; }
}

@media (max-width: 820px) {
  .erpal-relrail { gap: 6px; }
  .erpal-relrail__popout { max-height: 300px; }
}