/* ============================================================
   research.css — Research index + paper components
   Loaded after style.css on research.html and research/*.html
   ============================================================ */

/* ── RESEARCH INDEX ─────────────────────────────────────────── */
.rs-header {
  padding: 160px 0 80px;
  border-bottom: 1px solid var(--rule);
}

.rs-header h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: 28px;
}

.rs-lede {
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.6;
  color: var(--ink-mid);
  max-width: 680px;
  margin-bottom: 28px;
}

.rs-disclaimer {
  font-size: 11px;
  line-height: 1.7;
  color: var(--ink-dim);
  max-width: 680px;
  padding: 14px 18px;
  border-left: 2px solid var(--accent);
  background: var(--bg-off);
}

/* Programme stages */
.stage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
}

.stage-cell {
  background: var(--bg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.stage-num {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
}

.stage-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.stage-desc {
  font-size: 12px;
  color: var(--ink-mid);
  line-height: 1.7;
}

.stage-status {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.stage-status::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ink-ghost);
}

.stage-status.is-active { color: var(--ink); }
.stage-status.is-active::before { background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.stage-status.is-done::before { background: var(--ink); }

/* Publication library */
.pub-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
  margin-bottom: 32px;
}

.pub-search {
  flex: 0 1 320px;
  font: inherit;
  font-size: 12px;
  color: var(--ink);
  background: var(--bg-off);
  border: 1px solid var(--rule);
  padding: 10px 14px;
  outline: none;
  cursor: text;
}

.pub-search:focus { border-color: var(--ink-dim); }

.pub-filters { display: flex; flex-wrap: wrap; gap: 8px; }

.pub-chip {
  font: inherit;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  background: none;
  border: 1px solid var(--rule);
  padding: 6px 12px;
  cursor: crosshair;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.pub-chip:hover { border-color: var(--ink-dim); color: var(--ink); }
.pub-chip.is-on { background: var(--ink); border-color: var(--ink); color: var(--bg); }

.pub-library { border-top: 1px solid var(--rule); }

.pub {
  position: relative;
  display: grid;
  grid-template-columns: 90px 1fr 220px;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--rule);
  transition: background 0.2s;
}

.pub:hover { background: var(--bg-off); }
.pub[hidden] { display: none; }

.pub-id {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--accent);
  padding-top: 6px;
}

.pub:first-of-type .pub-id::after {
  content: 'Latest';
  display: block;
  width: max-content;
  margin-top: 10px;
  padding: 2px 6px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.pub-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 14px;
}

/* The title link covers the whole card */
.pub-title a::after { content: ''; position: absolute; inset: 0; }
.pub:hover .pub-title a { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 5px; }

.pub-abstract {
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-mid);
  max-width: 620px;
  margin-bottom: 18px;
}

.pub-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.pub-meta { font-size: 11px; line-height: 1.6; }
.pub-meta div { padding: 8px 0; border-bottom: 1px solid var(--rule); }
.pub-meta div:first-child { padding-top: 0; }
.pub-meta dt { font-size: 9px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--ink-dim); }
.pub-meta dd { color: var(--ink); }

.pub-actions {
  grid-column: 2 / -1;
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.pub-read { color: var(--ink); }
.pub-pdf {
  position: relative;            /* sits above the card-wide link */
  z-index: 1;
  color: var(--ink-dim);
  border-bottom: 1px solid var(--rule);
}
.pub-pdf:hover { color: var(--ink); border-color: var(--accent); }

.pub-nomatch, .pub-empty { padding: 40px 0; color: var(--ink-dim); font-size: 12px; }
.pub-empty { font-family: var(--font-serif); font-size: 18px; border-bottom: 1px solid var(--rule); }
.pub-library:has(.pub) .pub-empty, .pub-empty[hidden] { display: none; }
.pub-nomatch[hidden] { display: none; }

/* In preparation */
.pub-upcoming { margin-top: 48px; }
.pub-upcoming-label { margin-bottom: 12px; }

.pub-upcoming-row {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 32px;
  align-items: baseline;
  padding: 18px 0;
  border-top: 1px dashed var(--ink-ghost);
  border-bottom: 1px dashed var(--ink-ghost);
}

.pub-upcoming-row + .pub-upcoming-row { border-top: none; }
.pub-upcoming-row .pub-id { color: var(--ink-dim); padding-top: 0; }
.pub-upcoming-title { font-family: var(--font-display); font-size: 17px; font-weight: 600; color: var(--ink-dim); }
.pub-upcoming-note { font-size: 11px; color: var(--ink-dim); }

/* Standards checklist */
.standards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 48px;
  list-style: none;
  max-width: 980px;
}

.standards li {
  padding: 14px 0 14px 28px;
  border-bottom: 1px solid var(--rule);
  font-size: 12px;
  color: var(--ink-mid);
  line-height: 1.7;
  position: relative;
}

.standards li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 12px;
}

.standards strong { color: var(--ink); font-weight: 500; }

/* ── PAPER READER ──────────────────────────────────────────── */
.read-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  z-index: 101;
  pointer-events: none;
}

.paper-header { background: var(--bg-dark); border-bottom: 1px solid var(--rule-dark); }
.paper-header .wp-title { color: #e8e5df; font-size: clamp(36px, 5.5vw, 68px); max-width: 1000px; }
.paper-header .wp-abstract { color: #a8a5a0; font-size: 18px; max-width: 760px; }
.paper-header .wp-meta-row .tag { border-color: var(--rule-dark); color: #8a8a8e; }
.paper-header .wp-meta-row .tag-accent { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.paper-header .abstract-label { color: #5a5a5e; margin-bottom: 12px; }

.paper-byline {
  font-size: 11px;
  color: #8a8a8e;
  margin: -12px 0 32px;
}
.paper-byline b { color: #e8e5df; font-weight: 500; }

.paper-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.paper-btn {
  font: inherit;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #a8a5a0;
  background: none;
  border: 1px solid var(--rule-dark);
  padding: 10px 16px;
  cursor: crosshair;
  transition: border-color 0.2s, color 0.2s;
}
.paper-btn:hover { border-color: var(--accent); color: var(--accent); }

.wp-callout .paper-btn { color: var(--ink-dim); border-color: var(--rule); margin-top: 12px; padding: 6px 10px; }
.wp-callout .paper-btn:hover { color: var(--ink); border-color: var(--ink-dim); }

/* Larger, calmer reading text inside papers */
.is-paper .wp-content p,
.is-paper .wp-content ul,
.is-paper .wp-content ol:not(.paper-refs) { font-size: 14px; line-height: 1.95; max-width: 720px; }

.paper-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border-top: 1px solid var(--rule);
}

.paper-pager a, .paper-pager span {
  background: var(--bg);
  padding: 32px var(--gutter);
  font-size: 11px;
  color: var(--ink-dim);
  transition: background 0.2s;
}
.paper-pager a:hover { background: var(--bg-off); }
.paper-pager a b { display: block; margin-top: 6px; font-family: var(--font-display); font-size: 18px; font-weight: 700; color: var(--ink); }
.paper-pager .next { text-align: right; }

/* ── PAPER COMPONENTS ──────────────────────────────────────── */
.paper-spec {
  width: 100%;
  max-width: 720px;
  border-collapse: collapse;
  font-size: 12px;
  margin: 20px 0 32px;
}

.paper-spec th {
  width: 34%;
  text-align: left;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding: 10px 16px 10px 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.paper-spec td {
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
  line-height: 1.6;
}

.paper-table {
  width: 100%;
  max-width: 720px;
  border-collapse: collapse;
  font-size: 12px;
  margin: 12px 0 8px;
  font-variant-numeric: tabular-nums;
}

.paper-table th {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  text-align: right;
  padding: 10px 12px;
  border-bottom: 2px solid var(--ink);
}

.paper-table th:first-child,
.paper-table td:first-child { text-align: left; }

.paper-table td {
  text-align: right;
  padding: 9px 12px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-mid);
}

.paper-table tr:last-child td { border-bottom: 2px solid var(--ink); }

.paper-figure {
  margin: 28px 0 36px;
  max-width: 720px;
}

.paper-figure img {
  width: 100%;
  height: auto;
  border: 1px solid var(--rule);
  background: #fff;
}

.paper-figure figcaption,
.paper-caption {
  font-size: 11px;
  line-height: 1.7;
  color: var(--ink-dim);
  margin-top: 10px;
}

.paper-figure figcaption b,
.paper-caption b { color: var(--ink); font-weight: 500; }

.paper-equation {
  margin: 20px 0 28px;
  padding: 18px 20px;
  max-width: 720px;
  background: var(--bg-off);
  border-left: 2px solid var(--accent);
  overflow-x: auto;
  font-size: 14px;
}

.paper-hypothesis {
  margin: 20px 0 28px;
  max-width: 720px;
  border: 1px solid var(--rule);
}

.paper-hypothesis div {
  padding: 12px 18px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-mid);
}

.paper-hypothesis div + div { border-top: 1px solid var(--rule); }
.paper-hypothesis b { color: var(--ink); font-weight: 500; margin-right: 8px; }

.paper-refs {
  list-style: none;
  counter-reset: ref;
  max-width: 720px;
  margin: 0 !important;
}

.paper-refs li {
  counter-increment: ref;
  position: relative;
  padding-left: 36px;
  font-size: 12px;
  line-height: 1.7;
  margin-bottom: 12px;
}

.paper-refs li::before {
  content: '[' counter(ref) ']';
  position: absolute;
  left: 0;
  color: var(--ink-dim);
}

.paper-refs a { text-decoration: underline; text-underline-offset: 3px; }

.paper-note {
  font-size: 11px;
  line-height: 1.7;
  color: var(--ink-dim);
  max-width: 720px;
  padding: 14px 18px;
  border-left: 2px solid var(--ink-ghost);
  margin: 20px 0 28px;
}

/* Grid children default to min-width:auto, so one wide table would stretch the whole
   article past the screen. Let the column shrink and wide tables scroll on their own. */
.wp-content { min-width: 0; }

@media (max-width: 900px) {
  .paper-table, .paper-spec { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .stage-grid { grid-template-columns: 1fr 1fr; }
  .pub { grid-template-columns: 70px 1fr; gap: 20px 24px; }
  .pub-meta, .pub-actions { grid-column: 2; }
  .pub-meta { display: flex; flex-wrap: wrap; gap: 0 24px; }
  .pub-meta div { border: none; padding: 0; }
  .pub-upcoming-row { grid-template-columns: 70px 1fr; gap: 8px 24px; }
  .pub-upcoming-note { grid-column: 2; }
  .standards { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .stage-grid { grid-template-columns: 1fr; }
  .pub, .pub-upcoming-row { grid-template-columns: 1fr; }
  .pub-meta, .pub-actions, .pub-upcoming-note { grid-column: 1; }
  .pub:first-of-type .pub-id::after { display: inline-block; margin: 0 0 0 10px; }
  .paper-pager { grid-template-columns: 1fr; }
  .paper-pager .next { text-align: left; }
}

@media print {
  .site-nav, .wp-aside, .site-footer, .cursor-dot, .cursor-ring,
  .read-progress, .paper-actions, .paper-pager { display: none !important; }
  body { background: #fff; }
  .wp-body { display: block; padding: 0; }
  .wp-header, .paper-header { padding: 0 0 24px; background: none !important; border: none; }
  .paper-header .wp-title, .paper-header .wp-abstract, .paper-byline, .paper-byline b { color: #000 !important; }
  .paper-header .wp-meta-row .tag { color: #444; border-color: #999; }
  .wp-content h2 { break-after: avoid; }
  .paper-figure, .paper-table, .paper-equation { break-inside: avoid; }
}