:root {
  --bg: #f4f1ea;
  --paper: #fffcf8;
  --ink: #1c1916;
  --muted: #5c564e;
  --line: #e3dcd0;
  --link: #0e4c81;
  --header: 4.5rem;
  color-scheme: light;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

a { color: var(--link); }

img { display: block; max-width: 100%; }

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: #fff;
  color: #000;
  padding: 0.5rem 0.8rem;
  z-index: 20;
}

.skip:focus { top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  min-height: var(--header);
  padding: 0.85rem 1.5rem;
  background: rgba(255, 252, 248, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: inherit;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
}

.brand strong {
  display: block;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.brand small {
  display: block;
  margin-top: 0.1rem;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.01em;
}

.site-nav {
  display: flex;
  gap: 1.25rem;
}

.site-nav a {
  color: var(--ink);
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible { color: var(--link); }

.site-nav a[aria-current="page"] {
  text-decoration: underline;
  text-underline-offset: 0.28rem;
}

.wrap {
  max-width: 44rem;
  margin: 0 auto;
  padding: 3.25rem 1.5rem 4.5rem;
}

.kicker {
  margin: 0 0 0.7rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-family: Georgia, "Iowan Old Style", Palatino, "Palatino Linotype", serif;
  font-size: clamp(2.15rem, 5vw, 3.15rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.12;
}

.lede {
  margin: 1.1rem 0 0;
  max-width: 38rem;
  font-size: 1.12rem;
  color: var(--muted);
}

.papers {
  list-style: none;
  margin: 2.75rem 0 0;
  padding: 0;
}

.papers li {
  padding: 1.6rem 0;
  border-top: 1px solid var(--line);
}

.papers li:last-child { border-bottom: 1px solid var(--line); }

.paper-date {
  margin: 0 0 0.4rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.papers h2,
.paper h1 {
  font-family: Georgia, "Iowan Old Style", Palatino, "Palatino Linotype", serif;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.papers h2 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 1.85rem);
}

.papers h2 a {
  color: inherit;
  text-decoration: none;
}

.papers h2 a:hover,
.papers h2 a:focus-visible { color: var(--link); }

.paper-by,
.byline {
  margin: 0.55rem 0 0;
  color: var(--muted);
}

.paper-finding {
  margin: 0.7rem 0 0;
}

.read {
  display: inline-block;
  margin-top: 0.85rem;
  font-weight: 700;
}

.paper h1 {
  font-size: clamp(1.9rem, 4.4vw, 2.7rem);
}

.byline a { color: inherit; }

.actions { margin-top: 1.5rem; }

.download {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.55rem 1rem;
  border: 1px solid var(--ink);
  border-radius: 4px;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  background: var(--paper);
}

.download:hover,
.download:focus-visible { background: #fff; }

.paper h2 {
  margin: 2.4rem 0 0.45rem;
  font-size: 1.28rem;
  letter-spacing: -0.02em;
}

.paper p,
.paper li,
.page p,
.page li {
  font-size: 1.05rem;
}

.paper ul,
.page ul {
  margin: 0.4rem 0 0;
  padding-left: 1.2rem;
}

.paper li + li,
.page li + li { margin-top: 0.55rem; }

.paper a,
.page a { text-underline-offset: 0.15rem; }

.cite {
  margin: 2.4rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.98rem;
}

.cite span {
  display: block;
  margin-top: 0.35rem;
  color: var(--ink);
}

.page h1 { margin-bottom: 1rem; }

.page h2 {
  margin: 2rem 0 0.4rem;
  font-size: 1.28rem;
  letter-spacing: -0.02em;
}

.site-footer {
  padding: 2rem 1.5rem 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer .wrap {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0;
}

.site-footer p { margin: 0; }

.footer-links {
  margin-top: 0.7rem;
}

.footer-links a { color: var(--muted); }

.footer-links a:hover,
.footer-links a:focus-visible { color: var(--link); }

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
    padding: 0.85rem 1rem;
  }

  .wrap { padding: 2.25rem 1rem 3.5rem; }
}

@media print {
  .skip,
  .site-header,
  .site-footer,
  .actions,
  .read { display: none; }

  body { background: #fff; }

  .wrap { max-width: none; padding: 0; }
}