:root {
  --ink: #171717;
  --muted: #5e6368;
  --faint: #d9e4f5;
  /* Page background. Try nearby values like #fffdf8, #fffefa, or #ffffff. */
  --page: #fffdfa; /* #fffdfa; */
  /* Fixed navigation background. Try #fffdfa, #fff8ef, or #ffffff. */
  --nav-bg: #ffffff;
  --soft-blue: #eef6ff;
  --accent: #4f8fdf;
  --accent-blue: #4f8fdf;
  --accent-cyan: #00aaff;
  --deep-blue: #326fbe;
  --max: 820px;
  --serif: Palatino, "Palatino Linotype", "Palatino LT STD", "Book Antiqua", Georgia, serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.62;
}

a {
  color: var(--accent-blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent-cyan);
}

.page-head {
  background: var(--page);
  border-bottom: 1px solid var(--faint);
  padding-top: 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  max-width: none;
  margin: 0;
  border-bottom: 1px solid var(--faint);
  background: var(--nav-bg);
  box-shadow: none;
  padding: 14px 28px;
  font-family: var(--serif);
  font-size: 15px;
  line-height: 1.3;
  transform: none;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.nav-title {
  display: block;
  flex: 0 1 auto;
  max-width: 0;
  overflow: hidden;
  color: var(--ink);
  font-weight: 400;
  opacity: 0;
  text-decoration: none;
  white-space: nowrap;
  transition: max-width 180ms ease, opacity 180ms ease;
}

.nav-scrolled .nav-title {
  max-width: 420px;
  opacity: 1;
}

.navlinks {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-left: auto;
}

.navlinks a {
  color: var(--muted);
  text-decoration: none;
}

.navlinks a:hover {
  color: var(--accent);
}

.masthead {
  max-width: 980px;
  margin: 0 auto;
  padding: 54px 28px 48px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  letter-spacing: 0;
}

h1 {
  max-width: 900px;
  margin: 0;
  font-size: 54px;
  line-height: 1.04;
  font-weight: 700;
  color: var(--ink);
}

.subtitle {
  max-width: 780px;
  margin: 24px 0 0;
  color: #303336;
  font-size: 24px;
  line-height: 1.42;
}

.authors {
  display: grid;
  gap: 2px;
  max-width: 900px;
  margin: 22px 0 0;
  color: #2a2c2e;
  font-size: 17px;
}

.authors a {
  color: var(--ink);
  text-decoration: none;
}

.authors a:hover {
  color: var(--accent);
}

.authors span {
  color: var(--muted);
  font-family: var(--serif);
  font-size: 14px;
}

.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 28px;
  font-family: var(--serif);
  font-size: 15px;
}

.layout {
  max-width: var(--max);
  margin: 0 auto;
  padding: 48px 28px 70px;
}

article {
  min-width: 0;
}

section {
  margin: 0 0 54px;
  scroll-margin-top: 92px;
}

section h2 {
  margin: 0 0 14px;
  font-size: 30px;
  line-height: 1.18;
  color: var(--deep-blue);
}

.subsection-title {
  margin-top: 38px;
}

section p {
  margin: 0 0 18px;
}

.summary-block {
  border-bottom: 1px solid var(--faint);
  padding: 22px 0;
}

.summary-block h2 {
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.3;
  text-transform: uppercase;
}

.summary-block p {
  margin-bottom: 0;
}

.summary-title {
  margin-top: 24px;
  border-top: 1px solid var(--faint);
  padding-top: 24px;
}

.summary-block p + p {
  margin-top: 16px;
}

.math {
  white-space: nowrap;
  font-family: var(--serif);
  font-style: italic;
}

.vec {
  font-weight: 600;
  font-style: italic;
}

.mathop {
  font-style: normal;
}

.mathtext {
  font-style: normal;
}

.equation sub,
.equation sup {
  font-style: italic;
}

.equation sub.mathtext,
.equation sup.mathtext {
  font-style: normal;
}

.equation {
  overflow-x: auto;
  margin: 18px 0 22px;
  border-top: 1px solid var(--faint);
  border-bottom: 1px solid var(--faint);
  padding: 16px 12px;
  color: var(--deep-blue);
  font-size: 24px;
  line-height: 1.35;
  text-align: center;
}

.equation-stack {
  display: grid;
  gap: 8px;
}

.inline-equation {
  display: block;
}

figure {
  margin: 28px 0 0;
  background: transparent;
  border-top: 1px solid var(--faint);
  border-bottom: 1px solid var(--faint);
  padding: 18px 0;
}

figure img {
  display: block;
  width: 100%;
  height: auto;
}

figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1.45;
}

.wide-figure {
  background: transparent;
}

.wide-figure img {
  max-width: 520px;
  margin: 0 auto;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0 8px;
  font-family: var(--serif);
}

.metrics div {
  min-width: 0;
  border-top: 1px solid var(--faint);
  padding: 12px 0;
}

.metrics strong {
  display: block;
  color: var(--accent);
  font-size: 21px;
  line-height: 1.2;
}

.metrics span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.figure-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 8px;
}

.figure-grid figure {
  margin: 0;
}

.summary-figure {
  margin: 8px 0 54px;
}

.summary-figure-grid {
  display: grid;
  grid-template-columns: minmax(230px, 0.68fr) minmax(360px, 1.12fr);
  gap: 22px;
  align-items: start;
}

.summary-trace-stack {
  display: grid;
  gap: 12px;
}

.summary-figure .trace-card {
  padding: 12px;
}

.summary-figure .trace-card h3 {
  font-size: 17px;
}

.summary-figure .trace-label {
  font-size: 14px;
}

.summary-figure .trace-card pre {
  font-size: 11px;
}

.summary-bars img {
  display: block;
  width: 100%;
  height: auto;
}

#theory {
  border-top: 1px solid var(--faint);
  border-bottom: 1px solid var(--faint);
  padding: 36px 0;
}

.trace-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  margin-top: 22px;
}

.trace-card {
  min-width: 0;
  border: 1px solid var(--faint);
  border-top-width: 4px;
  border-radius: 8px;
  background: #fffdf9;
  padding: 16px;
}

.trace-card h3 {
  margin: 0;
  color: var(--deep-blue);
  font-size: 19px;
  line-height: 1.25;
}

.trace-label {
  margin: 6px 0 12px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.35;
}

.trace-note {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.trace-card pre {
  overflow-x: auto;
  margin: 10px 0 0;
  border-left: 2px solid var(--faint);
  background: var(--page);
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.45;
}

.trace-card code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.trace-card mark {
  border-radius: 3px;
  background: #fff0a6;
  color: #171717;
  font-weight: 700;
  padding: 0 0.2em;
}

.uniform {
  border-top-color: #9fc5f3;
}

.entropy {
  border-top-color: var(--accent);
}

.citation-box {
  position: relative;
  margin: 16px 0 28px;
  border: 1px solid var(--faint);
  border-radius: 8px;
  background: #fffdf9;
}

.copy-button {
  position: absolute;
  top: 10px;
  right: 10px;
  border: 1px solid var(--faint);
  border-radius: 6px;
  background: var(--page);
  color: var(--deep-blue);
  cursor: pointer;
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1;
  padding: 7px 10px;
}

.copy-button:hover,
.copy-button:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.bibtex {
  overflow-x: auto;
  margin: 0;
  padding: 50px 18px 18px;
  font-size: 15px;
  line-height: 1.45;
}

.bibtex code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.contact-line {
  color: var(--muted);
  font-size: 16px;
}

.authors-bottom {
  margin-top: 30px;
}

@media (max-width: 900px) {
  h1 {
    font-size: 42px;
  }

  .nav-scrolled .nav-title {
    max-width: 320px;
  }

  .subtitle {
    font-size: 21px;
  }

  .layout {
    padding-top: 36px;
  }
}

@media (max-width: 680px) {
  body {
    font-size: 17px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 12px 14px;
  }

  .page-head {
    padding-top: 112px;
  }

  .nav-scrolled .nav-title {
    max-width: 100%;
  }

  .navlinks {
    gap: 10px 14px;
  }

  .masthead {
    padding: 44px 20px 42px;
  }

  h1 {
    font-size: 34px;
    line-height: 1.08;
  }

  .subtitle {
    font-size: 19px;
  }

  .layout {
    padding: 32px 20px 58px;
  }

  section {
    margin-bottom: 46px;
  }

  section h2 {
    font-size: 25px;
  }

  .summary-block {
    padding: 20px;
  }

  .metrics,
  .figure-grid,
  .summary-figure-grid,
  .trace-compare {
    grid-template-columns: 1fr;
  }

  figure {
    padding: 12px;
  }
}