/* Paper summary pages: a working paper's title page, set in Computer Modern.
   Loaded after style.css. */

.paper-page {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.62;
  font-variant-numeric: lining-nums;
}

/* faint paper grain */
.paper-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: .03;
  pointer-events: none;
  z-index: 1000;
  transform: translateZ(0);
}

/* ---------- top bar ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  z-index: 120;
}

.nav-fixed {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 2rem;
  transition: background .3s ease, padding .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav-fixed.scrolled {
  background: rgba(253, 253, 251, .97);
  border-bottom-color: var(--hairline);
  padding: .6rem 2rem;
}
.nav-logo {
  font-size: 1.1rem;
  color: var(--ink);
  white-space: nowrap;
}
.nav-logo:hover { color: var(--accent); text-decoration: none; }
.nav-links { display: flex; gap: 1.6rem; }
.nav-link {
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active { color: var(--accent); text-decoration: none; }

/* ---------- title page ---------- */
.title-page {
  max-width: 46rem;
  margin: 0 auto;
  padding: clamp(5.5rem, 14vh, 8rem) 16px 0;
  text-align: center;
}
.wp-line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 0;
  padding-bottom: .45rem;
  border-bottom: 1px solid var(--rule);
  font-size: .95rem;
  font-variant: small-caps;
  letter-spacing: .05em;
  color: var(--ink-muted);
  text-align: left;
}
.wp-line span:last-child { text-align: right; }
.paper-title-h {
  margin: clamp(2rem, 6vh, 3rem) 0 0;
  font-weight: 400;
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  line-height: 1.14;
  color: var(--ink);
  animation: titleIn .9s ease-out backwards;
  text-wrap: balance;
}
@keyframes titleIn { from { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .paper-title-h { animation: none; } }

/* Intro (assets/site.js): hidden until each piece is played in; any scroll, click or key skips it. */
.paper-title-h { position: relative; }
html.intro .wp-line,
html.intro .paper-subtitle,
html.intro .paper-authors,
html.intro .abstract,
html.intro .title-page .bracket-links,
html.intro .reading-time,
html.intro .paper-body { opacity: 0; }
html.intro .paper-title-h { visibility: hidden; animation: none; }
html.intro .paper-title-h.typing { visibility: visible; }
html.intro-played .paper-title-h { animation: none; }
.paper-title-h .ch { opacity: 0; }
.paper-title-h .ch.on { opacity: 1; }
.paper-subtitle .w { display: inline-block; }
.type-caret {
  position: absolute;
  width: 3px;
  border-radius: 1px;
  background: var(--accent);
  pointer-events: none;
}

/* Figures and tables come in when scrolled to: the figure rises, bars grow from the baseline,
   values count up, table rows settle in one by one. */
.fig, .tab { transition: opacity .7s cubic-bezier(.2, .7, .2, 1), transform .7s cubic-bezier(.2, .7, .2, 1); }
.fig.pending, .tab.pending { opacity: 0; transform: translateY(18px); }
.bar { transform-origin: left center; transition: transform .9s cubic-bezier(.2, .7, .2, 1), filter .15s; }
.bar.neg { transform-origin: right center; }
.fig.pending .bar { transform: scaleX(0); }
.bar-val { transition: opacity .45s ease; }
.fig.pending .bar-val { opacity: 0; }
.booktabs tbody tr { transition: opacity .5s ease, transform .5s cubic-bezier(.2, .7, .2, 1); }
.tab.pending .booktabs tbody tr { opacity: 0; transform: translateY(6px); }

.paper-subtitle {
  margin: .9rem 0 0;
  font-size: 1.2rem;
  font-style: italic;
  color: var(--ink-2);
}
.paper-subtitle .status { font-style: normal; }
.paper-authors {
  margin: 1.4rem 0 0;
  font-size: 1.12rem;
  font-variant: small-caps;
  letter-spacing: .06em;
  color: var(--ink);
}
.paper-authors .sep { color: var(--ink-light); margin: 0 .35rem; }

.abstract {
  max-width: 37rem;
  margin: 2.25rem auto 0;
  font-size: 1rem;
  line-height: 1.5;
  text-align: justify;
  hyphens: auto;
  scroll-margin-top: 5rem;
}
.abstract p { margin: 0; }
.abstract-label {
  display: block;
  margin-bottom: .4rem;
  font-size: .95rem;
  font-weight: 700;
  text-align: center;
}
.keywords { margin-top: .75rem !important; font-size: .92rem; text-align: left; }

.title-page .bracket-links {
  justify-content: center;
  margin-top: 1.6rem;
  font-family: var(--serif);
  font-size: .98rem;
}
.reading-time {
  margin: .9rem 0 0;
  font-size: .88rem;
  font-style: italic;
  color: var(--ink-light);
}

/* ---------- body ---------- */
.paper-body {
  max-width: 39rem;
  margin: 0 auto;
  padding: clamp(2.5rem, 7vh, 4rem) 16px 0;
  counter-reset: sec;
}
.paper-body section { scroll-margin-top: 4.5rem; }
.paper-body section + section { margin-top: 2.4rem; }
.paper-body h2 {
  margin: 0 0 .8rem;
  font-size: 1.32rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}
.paper-body section:not(.unnumbered) h2::before {
  counter-increment: sec;
  content: counter(sec);
  display: inline-block;
  min-width: 1.9rem;
}
.paper-body p { margin: 0 0 1rem; text-align: justify; hyphens: auto; }
.paper-body ol.steps { margin: 0 0 1rem; padding-left: 1.4rem; }
.paper-body ol.steps li { margin-bottom: .55rem; text-align: justify; hyphens: auto; }

/* "Finding 1." set like a LaTeX theorem */
.paper-body p.result {
  margin: 1.6rem 0 .5rem;
  text-align: left;
}
.result-label { font-weight: 700; color: var(--ink); margin-right: .2rem; }

.takeaways { margin: 0 0 1rem; padding-left: 1.2rem; }
.takeaways li { margin-bottom: .6rem; }

.refs { list-style: none; margin: 0; padding: 0; font-size: .92rem; line-height: 1.45; }
.refs li { padding-left: 1.5rem; text-indent: -1.5rem; margin-bottom: .45rem; }

.stub-note {
  padding: 1rem 1.2rem;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  font-style: italic;
  color: var(--ink-muted);
  text-align: center !important;
}

/* ---------- figures and tables ---------- */
.fig, .tab {
  margin: 1.8rem 0 2rem;
  scroll-margin-top: 4.5rem;
}
.fig figcaption, .tab figcaption {
  margin-bottom: .7rem;
  font-size: .95rem;
  line-height: 1.4;
}
.fig-note {
  margin: .6rem 0 0 !important;
  font-size: .82rem !important;
  line-height: 1.45;
  color: var(--ink-muted);
  text-align: left !important;
}

.legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .2rem 1.2rem;
  margin: 0 0 .6rem;
  padding: 0;
  font-size: .86rem;
  color: var(--ink-2);
}
.legend li { display: flex; align-items: center; gap: .4rem; }
.sw { width: .8rem; height: .8rem; border-radius: 2px; display: inline-block; }
.sw.s1, .bar.s1 { background: var(--series-1); }
.sw.s2, .bar.s2 { background: var(--series-2); }

.bars {
  display: grid;
  grid-template-columns: minmax(6.5rem, 36%) 1fr;
  column-gap: .9rem;
  row-gap: .7rem;
  padding: .7rem 0 .2rem;
  border-top: 1.5px solid var(--rule);
  font-family: var(--serif);
}
.bar-label {
  grid-column: 1;
  align-self: center;
  font-size: .88rem;
  line-height: 1.25;
  text-align: right;
  color: var(--ink-2);
}
.bars-grid { grid-column: 2; position: relative; pointer-events: none; }
.gl { position: absolute; top: -.35rem; bottom: -.35rem; width: 1px; background: #ecebe7; }
.gl.zero { background: #b5b5b2; }
.bar-track { grid-column: 2; position: relative; }
.bar {
  position: absolute;
  min-width: 2px;
  border-radius: 0 4px 4px 0;
  cursor: default;
}
.bar.neg { border-radius: 4px 0 0 4px; }
.bar::after { content: ''; position: absolute; inset: -3px -6px; }
.bar:hover, .bar:focus-visible { filter: brightness(.9); outline: none; }
.bar-val {
  position: absolute;
  font-size: .78rem;
  color: var(--ink-muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}
.bar-axis {
  grid-column: 2;
  position: relative;
  height: 1.3rem;
  border-top: 1px solid var(--hairline);
  font-size: .74rem;
  color: var(--ink-light);
  font-variant-numeric: tabular-nums;
}
.bar-axis span { position: absolute; top: .2rem; transform: translateX(-50%); white-space: nowrap; }
.axis-unit {
  grid-column: 2;
  margin: -.3rem 0 0 !important;
  font-size: .78rem !important;
  color: var(--ink-light);
  text-align: center !important;
}

.table-view { margin-top: .5rem; font-size: .85rem; }
.table-view summary {
  cursor: pointer;
  font-family: var(--sans);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.table-view summary:hover { color: var(--accent); }
.table-view table { margin-top: .6rem; }

.booktabs {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
  font-variant-numeric: tabular-nums;
  border-top: 1.5px solid var(--rule);
  border-bottom: 1.5px solid var(--rule);
}
.booktabs th, .booktabs td { padding: .35rem .5rem; text-align: right; }
.booktabs th:first-child, .booktabs td:first-child { text-align: left; padding-left: 0; }
.booktabs th:last-child, .booktabs td:last-child { padding-right: 0; }
.booktabs thead th { font-weight: 400; font-style: italic; border-bottom: 1px solid var(--rule); }
.tab-scroll { overflow-x: auto; }

.viz-tip {
  position: fixed;
  z-index: 150;
  max-width: 16rem;
  padding: .45rem .6rem;
  background: var(--ink);
  color: #fff;
  font-family: var(--sans);
  font-size: .78rem;
  line-height: 1.35;
  border-radius: 4px;
  pointer-events: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .15);
}
.viz-tip[hidden] { display: none; }
.viz-tip b { font-weight: 600; }

/* ---------- citation ---------- */
.cite-block { max-width: 39rem; margin: 3rem auto 0; padding: 0 16px; scroll-margin-top: 4.5rem; }
.cite-block h2 { font-size: 1.32rem; font-weight: 700; margin: 0 0 .8rem; color: var(--ink); }
.citation { margin: 0 0 1rem; font-size: .98rem; }
.bibtex { position: relative; }
.bibtex pre {
  margin: 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  background: var(--bg-cream);
  border: 1px solid var(--hairline);
  font-family: var(--mono);
  font-size: .78rem;
  line-height: 1.5;
  color: var(--ink-2);
}
.copy-btn {
  position: absolute;
  top: .5rem; right: .5rem;
  padding: .3rem .6rem;
  font-family: var(--sans);
  font-size: .7rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-muted);
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: 3px;
  cursor: pointer;
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }

.pager {
  width: calc(100% - 32px);
  max-width: calc(39rem - 32px);
  margin: 3rem auto 0;
  padding: 1rem 0 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: start;
  border-top: 1px solid var(--hairline);
  font-size: .92rem;
}
.pager a small {
  display: block;
  font-family: var(--sans);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-light);
}
.pager .next { text-align: right; }
.pager .all { text-align: center; white-space: nowrap; }

.paper-page .site-footer { width: calc(100% - 32px); max-width: calc(39rem - 32px); margin: 3rem auto 0; font-family: var(--serif); }

.back-to-top {
  position: fixed;
  right: 1.25rem; bottom: 1.25rem;
  z-index: 90;
  width: 2.5rem; height: 2.5rem;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  background: var(--bg);
  color: var(--ink-muted);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { color: var(--accent); border-color: var(--accent); }

@media (max-width: 760px) {
  .nav-fixed, .nav-fixed.scrolled { padding-left: 16px; padding-right: 16px; }
  .nav-links .nav-link:not(.keep) { display: none; }
}
@media (max-width: 600px) {
  .paper-page { font-size: 17px; }
  .paper-body p, .paper-body ol.steps li, .abstract { text-align: left; }
  .wp-line { font-size: .85rem; }
  .pager { grid-template-columns: 1fr 1fr; }
  .pager .all { grid-column: 1 / -1; grid-row: 2; }
  .bars { grid-template-columns: minmax(5.5rem, 40%) 1fr; column-gap: .6rem; }
  .bar-label { font-size: .8rem; }
}

@media print {
  .nav-fixed, .scroll-progress, .back-to-top, .copy-btn, .table-view summary { display: none !important; }
  .paper-page::before { display: none; }
  .title-page { padding-top: 0; }
}