:root {
  --background: #f7f3ea;
  --paper: #fffdfa;
  --foreground: #181a1d;
  --muted: #6e706f;
  --line: #d8d0c2;
  --accent: #2f6f73;
  --link: #214f7a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgb(47 111 115 / 6%), transparent 28%),
    var(--background);
  color: var(--foreground);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.62;
}

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

a:hover,
a:focus-visible {
  text-decoration: underline;
  outline: none;
}

.page {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 72px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
}

.brand {
  color: var(--foreground);
  font-size: 24px;
  font-weight: 700;
}

.site-header nav {
  display: flex;
  gap: 22px;
  font-size: 16px;
}

.profile {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 58px;
  align-items: start;
  padding: 54px 0 44px;
  border-bottom: 1px solid var(--line);
}

.profile h1 {
  margin: 0 0 22px;
  font-size: clamp(44px, 7vw, 70px);
  line-height: 1;
  letter-spacing: 0;
}

.profile p {
  max-width: 680px;
  margin: 0 0 18px;
}

.profile-card {
  display: grid;
  gap: 18px;
  justify-items: center;
}

.profile-card img {
  width: 230px;
  height: 230px;
  border: 1px solid var(--line);
  border-radius: 8px;
  object-fit: cover;
  background: var(--paper);
}

.contact-block {
  width: 100%;
  border-top: 1px solid var(--line);
  padding-top: 16px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.42;
  text-align: center;
}

.contact-block p {
  margin: 0 0 8px;
}

.section {
  padding: 42px 0;
  border-bottom: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 22px;
  color: var(--accent);
  font-size: 24px;
  line-height: 1.2;
}

.paper {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 18px;
}

.paper-index,
.paper p {
  margin: 0;
}

.paper-index {
  color: var(--muted);
}

.paper h3 {
  margin: 0 0 6px;
  font-size: 21px;
  line-height: 1.3;
}

.authors,
.status,
.abstract-trigger,
.paper-link {
  color: var(--muted);
  font-size: 17px;
}

.paper-links {
  display: inline-flex;
  gap: 6px;
  align-items: baseline;
  margin-top: 12px;
}

.abstract-trigger {
  color: var(--link);
  cursor: default;
  display: inline-block;
  outline: none;
  position: relative;
}

.paper-link {
  color: var(--link);
}

.abstract-popover {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 30px rgb(24 26 29 / 14%);
  color: var(--foreground);
  left: 0;
  line-height: 1.55;
  opacity: 0;
  padding: 15px 18px;
  pointer-events: none;
  position: absolute;
  top: 100%;
  transform: translateY(4px);
  transition:
    opacity 160ms ease,
    transform 160ms ease,
    visibility 160ms ease;
  visibility: hidden;
  width: min(830px, calc(100vw - 48px));
  z-index: 10;
}

.abstract-trigger:hover .abstract-popover,
.abstract-trigger:focus .abstract-popover {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(8px);
  visibility: visible;
}

.education-list {
  display: grid;
  gap: 18px;
}

.education-item,
.award-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: baseline;
}

.education-item h3,
.award-item h3 {
  margin: 0 0 4px;
  font-size: 19px;
  line-height: 1.3;
}

.education-item p,
.award-item p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.education-item span,
.award-item span {
  display: inline-block;
  margin-top: 4px;
  color: var(--accent);
  font-size: 15px;
  font-weight: 700;
}

.education-item time,
.award-item time {
  color: var(--muted);
  font-size: 16px;
  white-space: nowrap;
}

.award-list {
  display: grid;
  gap: 18px;
}

@media (max-width: 760px) {
  body {
    font-size: 17px;
  }

  .page {
    width: min(100% - 28px, 1040px);
    padding-top: 22px;
  }

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

  .profile {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-top: 38px;
  }

  .profile-card {
    justify-items: start;
  }

  .contact-block {
    max-width: 280px;
    text-align: left;
  }

  .paper {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .education-item,
  .award-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}