:root {
  --ink: #222222;
  --muted: #666666;
  --line: #e5e5e5;
  --accent: #3d6f22;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.site-header {
  border-bottom: 1px solid var(--line);
  padding: 34px 0 18px;
}

.nav {
  width: min(900px, calc(100% - 36px));
  margin: 0 auto;
  display: grid;
  gap: 22px;
  justify-items: center;
}

.brand {
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1.1;
}

.brand:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
  color: #555555;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
}

.nav-links a {
  color: inherit;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

.home,
.page,
.footer {
  width: min(900px, calc(100% - 36px));
  margin: 0 auto;
}

.home,
.page {
  padding: 54px 0 72px;
}

.home {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 52px;
  align-items: start;
}

.home-main,
.page-main {
  max-width: 680px;
}

.eyebrow,
.label,
.visual-title,
.contact-card span,
.role time,
.year {
  color: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.3;
  text-transform: uppercase;
}

.eyebrow,
.label {
  margin: 0 0 18px;
}

h1 {
  margin: 0;
  color: var(--ink);
  font-size: 1.62rem;
  font-weight: 400;
  line-height: 1.25;
}

.page h1 {
  max-width: 720px;
}

h2 {
  margin: 0 0 14px;
  font-size: 1.08rem;
  font-weight: 400;
  line-height: 1.35;
}

h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  line-height: 1.35;
}

.subtitle,
.lead,
.topic p,
.role p,
.pub p,
.model-note,
.note-band p,
.contact-card p {
  color: var(--muted);
}

.subtitle,
.lead {
  margin: 18px 0 0;
  font-size: 0.96rem;
}

.plain-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 24px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
}

.plain-links a::after {
  color: #aaaaaa;
  content: "";
}

.portrait-panel {
  width: 220px;
  border: 1px solid var(--line);
  padding: 6px;
  background: #ffffff;
}

.portrait-panel img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
}

.profile-strip,
.hero-actions,
.button {
  display: none;
}

main {
  background: var(--white);
}

.page-head {
  margin-bottom: 36px;
}

.page-link {
  margin: 12px 0 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
}

.page-link a {
  color: var(--accent);
}

.content-grid,
.research-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 42px;
  align-items: start;
}

.profile-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 44px;
  align-items: start;
}

.profile-main h1 {
  max-width: 560px;
  font-size: 1.62rem;
  line-height: 1.25;
  margin-bottom: 6px;
}

.profile-intro {
  margin-top: 22px;
  margin-bottom: 18px;
  display: grid;
  gap: 18px;
}

.profile-block h3 {
  margin: 0 0 10px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.35;
}

.profile-block p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.6;
}

.profile-block p + h3 {
  margin-top: 18px;
}

.timeline {
  margin-top: 8px;
}

.profile-photo {
  justify-self: end;
}

.feature-list {
  display: grid;
  gap: 54px;
}

.feature-article {
  border-top: 1px solid var(--line);
  padding-top: 26px;
}

.feature-article:first-child {
  border-top: 0;
  padding-top: 0;
}

.feature-meta {
  margin: 0 0 16px;
  color: #5d7fba;
  font-size: 0.95rem;
  font-style: italic;
}

.feature-title {
  max-width: 900px;
  margin: 0 0 22px;
  color: #4d74b5;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.28rem;
  font-weight: 700;
  line-height: 1.28;
}

.feature-image {
  margin: 0 0 18px;
  max-width: 760px;
  border: 1px solid var(--line);
  padding: 8px;
  background: #ffffff;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}

.feature-summary {
  color: #4d74b5;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.96rem;
  line-height: 1.55;
}

.platform-intro {
  max-width: 760px;
  margin: 0 0 34px;
  color: var(--muted);
  font-size: 0.96rem;
}

.platform-list {
  display: grid;
  gap: 44px;
}

.platform-item {
  display: grid;
  gap: 18px;
}

.platform-item h2 {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.08rem;
  font-weight: 700;
}

.platform-item figure {
  max-width: 760px;
  margin: 0;
  border: 1px solid var(--line);
  padding: 8px;
  background: #ffffff;
}

.platform-item img {
  width: 100%;
  height: auto;
  display: block;
}

.platform-item p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.platform-gallery {
  max-width: 760px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.platform-gallery figure {
  margin: 0;
  border: 1px solid var(--line);
  padding: 8px;
  background: #ffffff;
}

.platform-gallery img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
}

.platform-link {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
}

.research-copy,
.timeline,
.pub-list {
  display: grid;
  gap: 0;
}

.pub-section + .pub-section {
  margin-top: 42px;
}

.section-heading {
  margin: 0 0 18px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.94rem;
  font-weight: 700;
  line-height: 1.35;
  text-transform: uppercase;
}

.page-head .label {
  margin-bottom: 14px;
  color: var(--ink);
  font-size: 0.94rem;
  letter-spacing: 0;
}

.topic,
.role,
.pub {
  border-top: 1px solid var(--line);
  padding: 20px 0;
}

.topic:first-child,
.role:first-child,
.pub:first-child {
  border-top: 0;
  padding-top: 0;
}

.topic p,
.role p,
.pub p {
  margin: 0;
  font-size: 0.96rem;
}

.research-visual,
.note-band,
.contact-card {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.visual-title {
  margin: 0 0 14px;
}

.model-row {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 12px;
  align-items: center;
  padding: 8px 0;
}

.model-row span {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.bar {
  height: 5px;
  background: #dddddd;
}

.bar::before {
  content: "";
  display: block;
  width: var(--value);
  height: 100%;
  background: var(--bar-color, var(--accent));
}

.model-note,
.note-band p {
  margin: 14px 0 0;
  font-size: 0.94rem;
}

.role,
.pub {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 24px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.contact-card span {
  display: block;
  margin-bottom: 8px;
}

.contact-card a,
.contact-card p {
  margin: 0;
  overflow-wrap: anywhere;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 22px 0 34px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: #888888;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

@media (max-width: 760px) {
  .site-header {
    padding-top: 26px;
  }

  .nav-links {
    gap: 14px 20px;
  }

  .home,
  .content-grid,
  .research-grid,
  .profile-layout,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .portrait-panel {
    width: min(260px, 100%);
  }

  .profile-photo {
    justify-self: start;
  }

  .feature-title {
    font-size: 1.18rem;
  }

  .role,
  .pub {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .platform-gallery {
    grid-template-columns: 1fr;
  }

  .platform-gallery img {
    height: auto;
  }

  .footer {
    flex-direction: column;
  }
}