:root {
  --page-bg: #f4eddd;
  --surface: #fffaf0;
  --surface-strong: #fffcf5;
  --ink: #35271f;
  --muted: #72645b;
  --accent: #944923;
  --accent-dark: #60301d;
  --accent-soft: #d69b63;
  --line: #d8c9b6;
  --focus: #005fcc;
  --shadow: 0 18px 46px rgb(66 40 24 / 10%);
  --content-width: 72rem;
  --radius: 1.1rem;
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 1rem;
}

body {
  min-width: 18rem;
  margin: 0;
  color: var(--ink);
  background: var(--page-bg);
  font-size: 1rem;
  line-height: 1.65;
}

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

a {
  color: var(--accent-dark);
  text-decoration-color: color-mix(in srgb, var(--accent) 58%, transparent);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

a:focus-visible,
summary:focus-visible {
  outline: 0.2rem solid var(--focus);
  outline-offset: 0.22rem;
  border-radius: 0.2rem;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.8rem;
  left: 0.8rem;
  padding: 0.6rem 0.85rem;
  color: #fff;
  background: var(--ink);
  border-radius: 0.35rem;
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.page-shell {
  width: min(calc(100% - 2rem), var(--content-width));
  margin-inline: auto;
}

.site-header {
  padding: 1rem 0;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-mark {
  display: block;
  text-decoration: none;
}

.site-mark img {
  width: clamp(8.8rem, 16vw, 11rem);
  height: auto;
}

.site-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(3rem, 8vw, 6.6rem) 0 clamp(2.5rem, 6vw, 4.8rem);
  border-block: 1px solid var(--line);
}

.hero::before,
.hero::after {
  position: absolute;
  z-index: -1;
  content: "";
  pointer-events: none;
}

.hero__layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(15rem, 0.65fr);
  gap: clamp(2rem, 6vw, 5.5rem);
  align-items: end;
}

.hero__art {
  position: absolute;
  z-index: 0;
  top: -7rem;
  right: max(-2.5rem, calc((100vw - var(--content-width)) / 2 - 7rem));
  width: clamp(34rem, 46vw, 42rem);
  height: auto;
  opacity: var(--hero-art-opacity, 0.18);
  mix-blend-mode: multiply;
  transform: translate(4%, -1%) rotate(-8deg);
  transform-origin: center;
  pointer-events: none;
  user-select: none;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1rem;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 2.7rem;
  height: 0.22rem;
  background: var(--accent);
  content: "";
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 18ch;
  margin-bottom: 1.3rem;
  font-size: clamp(2.7rem, 5vw, 4.7rem);
  line-height: 0.99;
  text-wrap: balance;
}

h1 em {
  color: var(--accent);
  font-weight: inherit;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  line-height: 1.07;
  text-wrap: balance;
}

h3 {
  margin-bottom: 0.4rem;
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero__meta {
  max-width: 44rem;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.14rem);
}

.author-line {
  max-width: 52rem;
  margin-bottom: 0.45rem;
  color: var(--ink);
  font-size: clamp(0.96rem, 1.5vw, 1.08rem);
  font-weight: 650;
}

.affiliations {
  max-width: 51rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.hero__meta strong {
  color: var(--ink);
}

.quick-nav {
  padding: 1.25rem;
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  border: 1px solid color-mix(in srgb, var(--line) 80%, transparent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(0.45rem);
}

.quick-nav p {
  margin-bottom: 0.65rem;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 780;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.quick-nav ul {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.quick-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0;
  color: var(--ink);
  font-weight: 680;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.quick-nav li:last-child a {
  border-bottom: 0;
}

.quick-nav a::after {
  color: var(--accent);
  content: "↓";
}

.summary-band {
  padding: clamp(1.6rem, 4vw, 3.4rem);
  margin-top: clamp(3rem, 7vw, 6rem);
  margin-bottom: clamp(3rem, 7vw, 6rem);
  color: #fffaf1;
  background: var(--accent-dark);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.summary-band__lead {
  max-width: 51rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.6rem);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.65rem, 3.6vw, 2.8rem);
  line-height: 1.18;
  text-wrap: balance;
}

.summary-band__lead strong {
  color: #f2c48f;
  font-weight: 600;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}

.metric-card {
  min-height: 9.5rem;
  padding: 1rem;
  background: rgb(255 250 241 / 9%);
  border: 1px solid rgb(255 250 241 / 20%);
  border-radius: 0.72rem;
}

.metric-card p {
  margin-bottom: 0;
  color: rgb(255 250 241 / 78%);
  font-size: 0.88rem;
  line-height: 1.45;
}

.metric {
  display: block;
  margin-bottom: 0.3rem;
  color: #f2c48f;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  line-height: 1.05;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.52fr) minmax(16rem, 0.58fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.section-card {
  padding: clamp(1.5rem, 4vw, 3.2rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.section-card + .section-card {
  margin-top: 1.5rem;
}

.section-number {
  display: inline-block;
  margin-bottom: 1.2rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 820;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.reference-list {
  display: grid;
  gap: 1.45rem;
  margin: 1.8rem 0 0;
  padding: 0;
  counter-reset: references;
  list-style: none;
}

.reference-list li {
  position: relative;
  padding-left: 2.6rem;
  counter-increment: references;
}

.reference-list li::before {
  position: absolute;
  top: 0.03rem;
  left: 0;
  display: grid;
  width: 1.72rem;
  height: 1.72rem;
  place-items: center;
  color: var(--surface-strong);
  background: var(--accent-dark);
  border-radius: 50%;
  content: counter(references);
  font-size: 0.72rem;
  font-weight: 800;
}

.reference-list p {
  margin-bottom: 0.35rem;
}

.reference-list cite {
  font-style: italic;
}

.doi-link {
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 700;
}

.sidebar {
  position: sticky;
  top: 1rem;
}

.note-card {
  padding: 1.5rem;
  background: color-mix(in srgb, var(--accent-soft) 16%, var(--surface));
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.note-card + .note-card {
  margin-top: 1rem;
}

.note-card p:last-child {
  margin-bottom: 0;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 760;
}

.poster-link {
  display: block;
  color: var(--ink);
  text-decoration: none;
}

.poster-link img {
  width: 100%;
  margin-bottom: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  box-shadow: 0 10px 28px rgb(66 40 24 / 12%);
}

.poster-link strong {
  display: block;
}

.poster-link span {
  color: var(--muted);
  font-size: 0.82rem;
}

.logo-strip {
  padding: clamp(2.2rem, 5vw, 3.6rem) 0;
  background: #fff;
  border-block: 1px solid var(--line);
}

.logo-strip__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}

.logo-strip__copy p {
  max-width: 40rem;
  margin-bottom: 0;
  color: var(--muted);
}

.logos {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(1.2rem, 4vw, 3rem);
}

.logo-link {
  display: grid;
  color: var(--muted);
  text-decoration: none;
}

.logo-link img {
  width: auto;
  height: 3.35rem;
  object-fit: contain;
}

.logo-link--imperial img {
  width: 13rem;
  max-width: none;
  height: auto;
  transform: translate(-1.2rem, -2.36rem);
}

.logo-link--imperial {
  width: 10.7rem;
  height: 1.25rem;
  overflow: hidden;
}

.logo-link--bes img {
  width: 8.2rem;
  height: auto;
}

.site-footer {
  padding: 1.55rem 0 2.3rem;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.site-footer p {
  margin: 0;
}

.minimal-page {
  display: grid;
  min-height: 100svh;
  place-items: center;
  padding: 2rem;
}

.minimal-card {
  width: min(100%, 39rem);
  padding: clamp(2rem, 7vw, 4.5rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.minimal-card h1 {
  margin-bottom: 1rem;
  font-size: clamp(2.4rem, 8vw, 4.8rem);
}

@media (max-width: 52rem) {
  .hero__art {
    display: none;
  }

  .hero__layout,
  .content-grid,
  .logo-strip__inner {
    grid-template-columns: 1fr;
  }

  .hero__layout {
    align-items: start;
  }

  .quick-nav {
    max-width: 31rem;
  }

  .sidebar {
    position: static;
  }

  .logos {
    justify-content: flex-start;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .metric-card {
    min-height: auto;
  }
}

@media (max-width: 34rem) {
  .page-shell {
    width: min(calc(100% - 2.5rem), var(--content-width));
  }

  .site-status {
    display: none;
  }

  .section-card,
  .quick-nav,
  .note-card {
    border-radius: 0.75rem;
  }

  .reference-list li {
    padding-left: 2.35rem;
  }

  .logos {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer__inner {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

@media print {
  :root {
    --page-bg: #fff;
    --surface: #fff;
    --surface-strong: #fff;
    --ink: #111;
    --muted: #444;
    --line: #bbb;
    --shadow: none;
  }

  body {
    font-size: 10pt;
  }

  .site-header,
  .quick-nav,
  .logo-strip,
  .site-footer {
    display: none;
  }

  .hero {
    padding: 1cm 0;
  }

  .hero__layout,
  .content-grid {
    display: block;
  }

  h1 {
    font-size: 30pt;
  }

  .content-grid {
    padding-block: 0.7cm;
  }

  .section-card,
  .note-card {
    padding: 0;
    border: 0;
  }

  .sidebar {
    margin-top: 1cm;
  }

  a {
    color: inherit;
  }
}