/* References list — additions on top of pages.css / content-pages.css.
 * Uses the project's real custom properties (--gm-*) so it inherits the
 * warm editorial palette automatically. No new colors are introduced;
 * testability badges and tag flags reuse --gm-yellow / --gm-green /
 * --gm-muted / --gm-ink.
 */

.reference-stats {
  opacity: 0.75;
}

/* Screen-reader-only text (used for the star rating's numeric equivalent) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Section grouping (peer-reviewed / art / advocacy / other) ---- */

.reference-group {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin: 2.5rem 0 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--gm-border);
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 780;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--gm-text);
  opacity: 0.7;
}

.reference-group:first-of-type {
  margin-top: 1.5rem;
  border-top: none;
  padding-top: 0;
}

.reference-group__count {
  margin-left: 0.15rem; /* fallback for engines without flexbox `gap` support */
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  opacity: 0.8;
}

.reference-group__list {
  display: grid;
  gap: 1.5rem;
}

/* ---- Card shell ---- */

.reference-entry {
  padding: 1.1rem;
  border: 1px solid rgba(7, 26, 51, 0.32);
  background: var(--gm-panel);
  box-shadow: var(--gm-shadow-block);
}

.reference-entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.reference-entry__meta--topics {
  margin-top: 0.85rem;
  margin-bottom: 0;
}

.reference-entry h3 {
  margin: 0 0 0.3rem;
  font-size: clamp(1.25rem, 1vw + 1rem, 1.7rem);
}

.reference-entry__authors {
  margin: 0 0 0.6rem;
  color: var(--gm-muted);
  font-size: 0.92rem;
}

/* ---- Tags & badges ---- */

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.6rem;
  border: 1px solid rgba(5, 5, 5, 0.24);
  background: var(--gm-panel-strong);
  color: var(--gm-text);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1;
}

.tag--topic {
  text-transform: capitalize;
  background: transparent;
  color: var(--gm-muted);
  font-weight: 600;
}

/* A tag no one else in the archive uses. */
.tag--unique {
  color: var(--gm-ink);
  font-weight: 780;
  border-color: rgba(5, 5, 5, 0.5);
}

/* The earliest entry using this tag — a small lineage marker, since we
   deliberately don't offer click-to-filter on tags (see README). */
.tag--new {
  color: var(--gm-green);
  font-weight: 780;
  border-color: var(--gm-green);
}

.tag__flag {
  display: inline-block;
  margin-left: 0.4em;
  padding: 0.05em 0.4em;
  border-radius: 999px;
  font-size: 0.85em;
  font-weight: 780;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tag--unique .tag__flag {
  background: var(--gm-yellow);
  color: var(--gm-ink);
}

.tag--new .tag__flag {
  background: transparent;
  border: 1px solid var(--gm-green);
  color: var(--gm-green);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.65rem;
  border: 1px solid rgba(5, 5, 5, 0.4);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 780;
  letter-spacing: 0.03em;
  line-height: 1;
  color: var(--gm-ink);
}

.badge--direct { background: var(--gm-yellow); }
.badge--partial { background: transparent; border-color: var(--gm-green); color: var(--gm-green); }
.badge--indirect,
.badge--contextual { background: transparent; color: var(--gm-muted); }
.badge--no { background: transparent; color: var(--gm-muted); text-decoration: line-through; }

/* ---- Relevance stars (placeholder icon — see the <symbol> in the template) ---- */

.reference-relevance {
  display: inline-flex;
  align-items: center;
  gap: 0.1rem;
  padding: 0.3rem 0.5rem 0.3rem 0.3rem;
  border: 1px solid rgba(5, 5, 5, 0.24);
  background: var(--gm-panel-strong);
}

.star-icon {
  fill: var(--gm-ink);
  flex: none;
}

.star-icon--empty {
  fill: none;
  stroke: var(--gm-muted);
  stroke-width: 1.5px;
  opacity: 0.6;
}

/* ---- Full assessment (Demonstrated / relevance / testability / limits) ----
 * A native <details> disclosure instead of four bordered boxes: collapsed by
 * default so a page of 20+ entries stays scannable, and a flowing label:value
 * list instead of a grid of little cards once it's open — reads the same
 * whether the card is 320px or 1100px wide, no extra breakpoints needed. */

.reference-entry__assessment summary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.85rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid rgba(5, 5, 5, 0.4);
  background: rgba(255, 255, 255, 0.4);
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 780;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gm-ink);
  cursor: pointer;
  list-style: none;
}

.reference-entry__assessment summary::-webkit-details-marker {
  display: none;
}

.reference-entry__assessment summary::after {
  content: "\25BE"; /* ▾ */
  transition: transform 0.15s ease;
}

.reference-entry__assessment[open] summary {
  margin-bottom: 0.9rem;
}

.reference-entry__assessment[open] summary::after {
  transform: rotate(180deg);
}

.reference-entry__assessment summary:hover,
.reference-entry__assessment summary:focus-visible {
  background: var(--gm-cream);
  border-color: rgba(5, 5, 5, 0.7);
}

.reference-entry__facts {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(7, 26, 51, 0.18);
}

.reference-entry__fact {
  display: grid;
  gap: 0.2rem;
}

.reference-entry__fact dt {
  margin: 0;
  color: var(--gm-ink);
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 780;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.reference-entry__fact dd {
  margin: 0;
  font-size: 0.96rem;
}

.reference-entry__citation {
  margin: 0.9rem 0 0.4rem;
  color: var(--gm-muted);
  font-size: 0.85rem;
}

.reference-entry__links {
  margin: 0.5rem 0 0;
  font-size: 0.92rem;
}

/* ---- Responsive tweaks ----
 * Everything above already flows at any width (the label:value facts list,
 * wrapping tag rows, and the global .content-page p max-width from
 * content-pages.css keep prose readable even inside a very wide card) — the
 * only real breakpoint needed is turning each fact's label+value from a
 * stacked pair into a side-by-side spec-sheet row once there's room. */

@media (min-width: 640px) {
  .reference-entry__fact {
    grid-template-columns: 11rem 1fr;
    gap: 0.75rem 1rem;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .reference-entry {
    padding: 1.5rem;
  }
}

@media (max-width: 420px) {
  .reference-entry {
    padding: 0.9rem;
  }

  .tag,
  .badge {
    font-size: 0.68rem;
    padding: 0.26rem 0.5rem;
  }
}