:root {
  --ink: #19212b;
  --muted: #66717f;
  --line: #d9dee5;
  --paper: #f5f3ee;
  --surface: #ffffff;
  --accent: #26384d;
  --accent-soft: #e9eef4;
  --serif: Georgia, 'Times New Roman', Times, serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.68;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-underline-offset: .18em; }
a:hover { color: #455f7b; }
img { display: block; max-width: 100%; }

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  transform: translateY(-180%);
  background: var(--ink);
  color: white;
  padding: .65rem .9rem;
  border-radius: .4rem;
}
.skip-link:focus { transform: translateY(0); }

.shell {
  width: min(1180px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(245, 243, 238, .94);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  text-decoration: none;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: white;
  border-radius: .45rem;
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .08em;
}

.brand-copy { display: grid; line-height: 1.16; }
.brand-copy strong { font-size: .95rem; }
.brand-copy small { color: var(--muted); font-size: .72rem; margin-top: .18rem; }

nav { display: flex; align-items: center; gap: 1.25rem; }
nav a { text-decoration: none; font-size: .84rem; color: #3f4955; }
nav .external { border-left: 1px solid var(--line); padding-left: 1.25rem; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(440px, 1.12fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
  padding-top: clamp(4rem, 9vw, 8rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.eyebrow, .section-kicker {
  text-transform: uppercase;
  letter-spacing: .15em;
  font-weight: 700;
  font-size: .72rem;
  color: var(--muted);
}

.hero h1 {
  margin: .45rem 0 1.15rem;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(3.8rem, 8vw, 7.7rem);
  line-height: .93;
  letter-spacing: -.055em;
}

.dek {
  max-width: 660px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  line-height: 1.44;
  color: #35414d;
}

.meta-row {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
}
.meta-row span {
  border: 1px solid #cfd6de;
  background: rgba(255,255,255,.48);
  padding: .38rem .66rem;
  border-radius: 999px;
  font-size: .72rem;
  color: #52606d;
}

.lead-figure { margin: 0; }
.lead-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  object-position: center;
  background: transparent;
  border: 1px solid #cdd3da;
  box-shadow: 0 20px 50px rgba(31, 42, 54, .10);
}
.lead-figure figcaption {
  border-left: 2px solid #9da8b4;
  padding-left: .85rem;
  margin-top: .9rem;
  font-size: .76rem;
  line-height: 1.5;
  color: var(--muted);
}

.content-grid {
  display: grid;
  grid-template-columns: 270px minmax(0, 720px);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
  padding-bottom: 8rem;
}

.profile-card {
  position: sticky;
  top: 105px;
  border-top: 3px solid var(--ink);
}
.profile-block { padding: 1.4rem 0; border-bottom: 1px solid var(--line); }
.profile-block h2 {
  margin: 0 0 .9rem;
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .12em;
}
dl { margin: 0; }
dl div { margin-bottom: .85rem; }
dl div:last-child { margin-bottom: 0; }
dt { color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; }
dd { margin: .12rem 0 0; font-size: .87rem; line-height: 1.4; }
.tag-list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .38rem; }
.tag-list li { background: var(--accent-soft); padding: .28rem .5rem; border-radius: .25rem; font-size: .71rem; }
.links-block { display: grid; gap: .45rem; }
.links-block h2 { margin-bottom: .45rem; }
.links-block a { font-size: .8rem; }

.article section {
  padding: 0 0 4.6rem;
  margin-bottom: 4.6rem;
  border-bottom: 1px solid var(--line);
}
.article section:last-child { border-bottom: 0; }
.article h2 {
  margin: .2rem 0 1.4rem;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.08;
  font-weight: 500;
  letter-spacing: -.025em;
}
.article p {
  margin: 0 0 1.35rem;
  font-size: 1.03rem;
  color: #303b46;
}
.article .lead {
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.5vw, 1.95rem);
  line-height: 1.42;
  color: var(--ink);
}

.references ol { padding-left: 1.2rem; margin: 1.8rem 0 0; }
.references li { padding: 0 0 1.1rem .5rem; }
.references li a { font-family: var(--serif); font-size: 1rem; font-weight: 700; }
.references li span { display: block; margin-top: .18rem; font-size: .76rem; color: var(--muted); }
.reference-note { font-size: .88rem !important; color: var(--muted) !important; }

.site-footer {
  border-top: 1px solid var(--line);
  background: #ebe8e1;
}
.footer-grid {
  min-height: 180px;
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: center;
}
.footer-grid strong { font-family: var(--serif); font-size: 1.15rem; }
.footer-grid p { margin: .25rem 0 0; color: var(--muted); font-size: .8rem; }
.footer-links { display: flex; gap: 1rem; font-size: .8rem; }

@media (max-width: 900px) {
  nav a:not(.external) { display: none; }
  nav .external { border-left: 0; padding-left: 0; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { max-width: 720px; }
  .lead-figure { max-width: 680px; }
  .content-grid { grid-template-columns: 1fr; }
  .profile-card { position: static; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; border-top: 3px solid var(--ink); border-bottom: 1px solid var(--line); }
  .profile-block { border-bottom: 0; }
}

@media (max-width: 620px) {
  .shell { width: min(100% - 1.5rem, 1180px); }
  .header-inner { min-height: 68px; }
  .brand-copy small { display: none; }
  .hero { padding-top: 3rem; padding-bottom: 4rem; gap: 2.5rem; }
  .hero h1 { font-size: clamp(3.5rem, 18vw, 5rem); }
  .meta-row { gap: .4rem; }
  .content-grid { gap: 3rem; padding-bottom: 4rem; }
  .profile-card { grid-template-columns: 1fr; gap: 0; }
  .profile-block { border-bottom: 1px solid var(--line); }
  .article section { padding-bottom: 3.2rem; margin-bottom: 3.2rem; }
  .article p { font-size: 1rem; }
  .footer-grid { padding-block: 2.2rem; min-height: 0; display: grid; }
  .footer-links { flex-wrap: wrap; }
}