:root {
  --page-width: 1080px;
  --reading-width: 70ch;
  --font-display: "Libre Caslon Display", "Iowan Old Style", Baskerville, Georgia, serif;
  --font-text: "Libre Caslon Text", "Iowan Old Style", Baskerville, Georgia, serif;
  --ink: #2b2721;
  --muted: #70675a;
  --accent: #773b35;
  --accent-strong: #512722;
  --accent-soft: #efe3da;
  --canvas: #eee8dc;
  --paper: #fbf8f1;
  --paper-deep: #f5eee2;
  --border: #d2c4b0;
  --rule: #a58c68;
  --gold: #957548;
  --shadow: 0 12px 32px rgba(65, 48, 28, 0.065);
  --radius: 2px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  background-color: var(--canvas);
  background-image:
    radial-gradient(circle at 16% 0%, rgba(255, 255, 255, 0.62), transparent 34rem),
    radial-gradient(rgba(76, 57, 35, 0.035) 0.65px, transparent 0.65px);
  background-size: auto, 5px 5px;
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 17px;
  font-kerning: normal;
  line-height: 1.72;
  font-variant-numeric: oldstyle-nums proportional-nums;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--accent-soft);
}

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

.wrap {
  width: min(100%, var(--page-width));
  margin: 0 auto;
  padding-inline: clamp(20px, 4vw, 32px);
}

.site-header {
  background: rgba(251, 248, 241, 0.96);
  border-bottom: 3px double var(--rule);
  border-top: 3px double var(--rule);
  box-shadow: 0 1px 0 rgba(81, 55, 29, 0.05);
}

.site-header-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 32px;
  padding-block: 24px 22px;
}

.site-identity {
  min-width: 0;
}

.site-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.2vw, 2.55rem);
  font-weight: 400;
  letter-spacing: 0.006em;
  line-height: 1.04;
}

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

.site-meta {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-style: italic;
  letter-spacing: 0.012em;
  line-height: 1.45;
}

.primary-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  border-left: 1px solid var(--border);
  gap: 18px;
  padding-left: 24px;
}

.primary-nav a {
  border-bottom: 1px solid transparent;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 5px 0 4px;
  position: relative;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color 150ms ease, color 150ms ease;
}

.primary-nav a:hover {
  border-bottom-color: var(--border);
  color: var(--accent-strong);
}

.primary-nav a[aria-current="page"] {
  border-bottom-color: var(--accent);
  color: var(--accent-strong);
  font-weight: 700;
}

.primary-nav a[aria-current="page"]::after {
  background: var(--gold);
  bottom: -7px;
  content: "";
  height: 4px;
  left: 50%;
  position: absolute;
  transform: translateX(-50%) rotate(45deg);
  width: 4px;
}

main.wrap {
  padding-block: clamp(28px, 5vw, 52px) 64px;
}

h1,
h2,
h3 {
  color: var(--ink);
  font-family: var(--font-display);
  font-feature-settings: "kern" 1, "liga" 1;
  font-weight: 400;
  letter-spacing: 0;
  text-wrap: balance;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.9rem, 3.4vw, 2.35rem);
  line-height: 1.08;
}

h3 {
  margin: 0;
  font-size: 1.38rem;
  line-height: 1.2;
}

p {
  margin: 0 0 1rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--accent);
  text-decoration-color: rgba(119, 59, 53, 0.48);
  text-decoration-thickness: 1px;
  text-decoration-skip-ink: auto;
  text-underline-offset: 3px;
  transition: color 150ms ease, text-decoration-color 150ms ease;
}

a:hover {
  color: var(--accent-strong);
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  border-radius: 3px;
  outline: 3px solid rgba(119, 59, 53, 0.24);
  outline-offset: 3px;
}

.page-intro {
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
  max-width: var(--reading-width);
  padding-bottom: 21px;
  position: relative;
}

.page-intro::after {
  background: var(--gold);
  bottom: -4px;
  box-shadow: 0 0 0 5px var(--canvas);
  content: "";
  height: 7px;
  left: 0;
  position: absolute;
  transform: rotate(45deg);
  width: 7px;
}

.page-intro h2 {
  font-size: clamp(2.65rem, 5.2vw, 3.65rem);
  line-height: 0.96;
  margin-bottom: 10px;
}

.page-intro p {
  color: var(--muted);
  font-size: 1.04rem;
  font-style: italic;
  letter-spacing: 0.008em;
}

.card {
  background: rgba(251, 248, 241, 0.94);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(22px, 3.5vw, 32px);
  position: relative;
  scroll-margin-top: 18px;
}

.card:not(.reference-card)::before {
  border: 1px solid rgba(149, 117, 72, 0.15);
  border-radius: 1px;
  content: "";
  inset: 7px;
  pointer-events: none;
  position: absolute;
}

.card:not(.reference-card) {
  border-top: 2px solid var(--rule);
}

.card:not(.reference-card) > h2 {
  align-items: center;
  display: flex;
  gap: 13px;
}

.card:not(.reference-card) > h2::before {
  background: var(--gold);
  content: "";
  flex: 0 0 5px;
  height: 5px;
  transform: rotate(45deg);
  width: 5px;
}

.card:not(.reference-card) > h2::after {
  background: linear-gradient(90deg, var(--border), transparent);
  content: "";
  flex: 1;
  height: 1px;
  margin-top: 0.18em;
}

.prose {
  max-width: var(--reading-width);
}

.home-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(270px, 0.85fr);
  gap: 22px;
}

.research-card {
  grid-column: 1 / -1;
}

.contact-list,
.detail-grid {
  display: grid;
  grid-template-columns: minmax(88px, auto) minmax(0, 1fr);
  gap: 10px 18px;
  margin: 0;
}

.contact-list dt,
.detail-grid dt {
  color: var(--accent-strong);
  font-family: var(--font-text);
  font-size: 1.08rem;
  font-variant-caps: small-caps;
  font-weight: 700;
  letter-spacing: 0.035em;
}

.contact-list dd,
.detail-grid dd {
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
}

.contact-list {
  grid-template-columns: 1fr;
  gap: 2px;
}

.contact-list dd:not(:last-child) {
  margin-bottom: 12px;
}

.email-domain {
  white-space: nowrap;
}

.visual-card {
  margin-top: 22px;
}

.figure-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 220px));
  justify-content: center;
  gap: clamp(22px, 5vw, 48px);
}

.figure {
  margin: 0;
  text-align: center;
}

.figure img {
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 0;
  box-shadow: 0 12px 26px rgba(64, 46, 25, 0.14);
  filter: sepia(0.07) saturate(0.9);
  height: auto;
  padding: 8px;
  width: 100%;
}

.figure-caption {
  color: var(--muted);
  font-size: 0.93rem;
  font-style: italic;
  line-height: 1.45;
  letter-spacing: 0.012em;
  margin-top: 12px;
}

.figure-caption::before {
  content: "— ";
}

.cv-stack {
  display: grid;
  gap: 22px;
}

.cv-list {
  margin: 0;
}

.cv-entry {
  display: grid;
  grid-template-columns: minmax(120px, 165px) minmax(0, 1fr);
  gap: 6px 24px;
  padding-block: 14px;
}

.cv-entry + .cv-entry {
  border-top: 1px solid var(--border);
}

.cv-entry:first-child {
  padding-top: 2px;
}

.cv-entry:last-child {
  padding-bottom: 2px;
}

.cv-time {
  align-items: center;
  color: var(--accent);
  display: flex;
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-variant-numeric: lining-nums tabular-nums;
  font-weight: 400;
  letter-spacing: 0.012em;
  line-height: 1.5;
}

.cv-time::after {
  background: linear-gradient(90deg, var(--border), transparent);
  content: "";
  flex: 1;
  height: 1px;
  margin-left: 10px;
}

.cv-entry-title {
  font-weight: 600;
}

.cv-entry-body p {
  margin: 3px 0 0;
}

.compact-list,
.year-group ul,
.reference-card ul,
.topic-list {
  padding-left: 1.15rem;
}

.compact-list,
.year-group ul,
.reference-card ul {
  margin: 0;
}

li {
  margin: 0.32rem 0;
}

li::marker {
  color: var(--accent);
}

.year-groups {
  display: grid;
  gap: 18px;
}

.year-group {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 20px;
}

.year-group + .year-group {
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

.year-label {
  align-items: center;
  color: var(--accent);
  display: inline-flex;
  font-variant-numeric: lining-nums tabular-nums;
  gap: 9px;
  padding-top: 2px;
}

.year-label::after {
  background: var(--gold);
  content: "";
  height: 5px;
  transform: rotate(45deg);
  width: 5px;
}

.topic-index {
  background: rgba(245, 238, 226, 0.94);
  margin-bottom: 18px;
}

.topic-index h2 {
  font-size: 1.65rem;
  margin-bottom: 14px;
}

.topic-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: 28px;
  row-gap: 2px;
  font-size: 0.95rem;
}

.topic-list li {
  break-inside: avoid;
}

.references-grid {
  columns: 2 420px;
  column-gap: 32px;
}

.reference-card {
  background: transparent;
  border: 0;
  border-top: 1px solid var(--rule);
  border-radius: 0;
  break-inside: avoid;
  box-shadow: none;
  margin: 0 0 26px;
  padding: 18px 3px 3px;
}

.reference-card .section-title {
  color: var(--accent-strong);
  font-size: clamp(1.55rem, 2.7vw, 1.85rem);
  line-height: 1.15;
  margin-bottom: 12px;
}

.reference-card .small {
  font-size: 0.95rem;
  line-height: 1.58;
}

.math,
.math-var {
  font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif;
  letter-spacing: 0;
}

.math-var {
  font-style: italic;
}

.site-footer {
  color: var(--muted);
  font-size: 0.9rem;
  padding-bottom: 34px;
  text-align: center;
}

.site-footer::before {
  color: var(--gold);
  content: "❦";
  display: block;
  font-size: 1rem;
  margin-bottom: 7px;
}

@media (max-width: 760px) {
  body {
    font-size: 16.5px;
    line-height: 1.68;
  }

  .site-header-inner {
    grid-template-columns: 1fr;
    gap: 15px;
    padding-block: 20px 18px;
  }

  .primary-nav {
    border-left: 0;
    border-top: 1px solid var(--border);
    gap: 17px;
    padding-left: 0;
    padding-top: 11px;
  }

  .primary-nav a {
    padding-inline: 0;
  }

  main.wrap {
    padding-block: 28px 48px;
  }

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

  .research-card {
    grid-column: auto;
  }

  .cv-entry,
  .year-group {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .cv-time,
  .year-label {
    margin-bottom: 2px;
  }

  .topic-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 22px;
  }

  .references-grid {
    columns: 1;
  }
}

@media (max-width: 520px) {
  .card {
    padding: 22px 20px;
  }

  .card:not(.reference-card)::before {
    inset: 6px;
  }

  .site-meta {
    font-size: 0.92rem;
  }

  .detail-grid {
    grid-template-columns: 82px minmax(0, 1fr);
    gap: 8px 12px;
  }

  .figure-pair {
    grid-template-columns: minmax(0, 260px);
  }

  .topic-list {
    grid-template-columns: 1fr;
  }

  .reference-card {
    padding: 16px 2px 2px;
  }
}