:root {
  --background: #111;
  --text: #f1f1ef;
  --muted: #9a9a96;
  --line: #333;
  --max-width: 940px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

a:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10;
  padding: 8px 12px;
  background: var(--text);
  color: var(--background);
  transform: translateY(-200%);
}

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

header,
main,
footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

header .name {
  font-weight: 700;
}

nav,
.links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

nav a,
.links a,
footer {
  font-size: 14px;
}

section {
  padding: 64px 0;
}

.intro {
  display: grid;
  grid-template-columns: 1fr 180px;
  gap: 80px;
  align-items: center;
}

.intro img {
  display: block;
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 50%;
  filter: grayscale(100%);
}

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

h1 {
  margin-bottom: 20px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1;
  letter-spacing: -0.05em;
}

.lead {
  margin-bottom: 6px;
  font-size: clamp(21px, 3vw, 28px);
}

.intro div > p:not(.lead) {
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 18px;
}

h2 {
  margin-bottom: 48px;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h3 {
  margin-bottom: 4px;
  font-size: 20px;
  line-height: 1.3;
}

.company-list,
.experience-list {
  border-top: 1px solid var(--line);
}

.company {
  min-height: 150px;
  padding: 32px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  border-bottom: 1px solid var(--line);
}

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

.company:hover h3 {
  text-decoration: underline;
  text-underline-offset: 5px;
}

.company h3 span {
  display: inline-block;
  margin-left: 6px;
  font-size: 14px;
}

.company p,
.experience-list p {
  margin-bottom: 0;
}

.company div > p,
.muted,
.experience-list li > div:first-child p {
  color: var(--muted);
}

.role {
  white-space: nowrap;
  font-size: 14px;
}

.experience-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.experience-list li {
  padding: 26px 0;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  border-bottom: 1px solid var(--line);
}

.experience-list h3 {
  font-size: 16px;
}

.experience-list p {
  font-size: 14px;
}

.research-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.research-list li {
  padding: 24px 0;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 28px;
  border-bottom: 1px solid var(--line);
}

.research-list li > span,
.research-list p {
  color: var(--muted);
  font-size: 14px;
}

.research-list h3,
.research-list p {
  margin-bottom: 0;
}

.research-list h3 {
  font-size: 16px;
  font-weight: 400;
}

.research-list h3 a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.contact-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.contact-list li {
  border-bottom: 1px solid var(--line);
}

.contact-list a {
  padding: 22px 0;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.contact-list span {
  color: var(--muted);
  font-size: 14px;
}

footer {
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
}

footer p {
  margin: 0;
}

@media (max-width: 640px) {
  header,
  main,
  footer {
    width: min(calc(100% - 32px), var(--max-width));
  }

  header {
    min-height: 0;
    padding: 18px 0;
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  header .name {
    font-size: 14px;
  }

  header nav {
    gap: 8px 16px;
  }

  h1 {
    font-size: clamp(30px, 9.5vw, 42px);
  }

  section {
    padding: 48px 0;
  }

  .intro {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .intro img {
    width: 120px;
    height: 120px;
    grid-row: 1;
  }

  .experience-list li {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .research-list li {
    grid-template-columns: 48px 1fr;
    gap: 16px;
  }

  .company {
    min-height: 130px;
  }

  footer {
    min-height: 120px;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
  }
}

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