:root {
  --background: #f5f4ef;
  --text: #151515;
  --muted: #656565;
  --accent: #173d73;
  --border: #d8d6cf;

  --width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;

  display: flex;
  flex-direction: column;

  background: var(--background);
  color: var(--text);

  font-family:
    Inter,
    "Helvetica Neue",
    Arial,
    sans-serif;

  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: min(calc(100% - 80px), var(--width));
  margin: 0 auto;
}


/* ---------------- HEADER ---------------- */

header {
  border-bottom: 1px solid var(--border);
}

.navbar {
  height: 88px;

  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--accent);
}

nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

nav a {
  position: relative;

  font-size: 0.92rem;
  font-weight: 500;
  color: #444;

  transition: color 150ms ease;
}

nav a::after {
  content: "";

  position: absolute;
  left: 0;
  bottom: -6px;

  width: 0;
  height: 1px;

  background: var(--accent);

  transition: width 150ms ease;
}

nav a:hover {
  color: var(--accent);
}

nav a:hover::after {
  width: 100%;
}


/* ---------------- HERO ---------------- */

main {
  flex: 1;
}

.hero {
  min-height: calc(100vh - 160px);

  display: flex;
  align-items: center;

  padding: 80px 0 100px;
}

.hero-inner {
  width: 100%;
}

.eyebrow {
  margin: 0 0 28px;

  font-size: 0.78rem;
  font-weight: 700;

  letter-spacing: 0.16em;

  color: var(--accent);
}

h1 {
  margin: 0;

  font-size: clamp(5rem, 11vw, 9.5rem);
  line-height: 0.78;

  font-weight: 750;
  letter-spacing: -0.075em;
}

h1 span {
  color: var(--accent);
}

.hero-bottom {
  margin-top: 70px;

  display: grid;
  grid-template-columns: minmax(0, 650px) 1fr;
  gap: 80px;

  align-items: end;
}

.description {
  margin: 0;

  max-width: 650px;

  font-size: 1.2rem;
  line-height: 1.65;

  color: var(--muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 25px;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  gap: 14px;

  padding: 14px 19px;

  background: var(--accent);
  color: white;

  border: 1px solid var(--accent);

  font-size: 0.92rem;
  font-weight: 600;

  transition:
    transform 150ms ease,
    background 150ms ease;
}

.primary-button:hover {
  transform: translateY(-2px);
  background: #102f5c;
}

.primary-button span {
  font-size: 1rem;
}

.text-link {
  font-size: 0.9rem;
  font-weight: 600;

  border-bottom: 1px solid #aaa;

  padding-bottom: 2px;
}

.text-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}


/* ---------------- FOOTER ---------------- */

footer {
  border-top: 1px solid var(--border);
}

.footer-inner {
  min-height: 72px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  font-size: 0.82rem;
  color: var(--muted);
}

.footer-inner a:hover {
  color: var(--accent);
}

.footer-inner p {
  margin: 0;
}


/* ---------------- MOBILE ---------------- */

@media (max-width: 750px) {

  .container {
    width: min(calc(100% - 40px), var(--width));
  }

  .navbar {
    height: 72px;
  }

  nav {
    gap: 17px;
  }

  nav a {
    font-size: 0.78rem;
  }

  nav a:nth-child(3) {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 75px 0 90px;
  }

  h1 {
    font-size: clamp(4.4rem, 22vw, 7rem);
  }

  .hero-bottom {
    margin-top: 55px;

    grid-template-columns: 1fr;
    gap: 40px;
  }

  .description {
    font-size: 1.05rem;
  }

  .footer-inner {
    padding: 20px 0;

    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
  }
}


/* ---------------- INNER PAGES ---------------- */

.page-main {
  flex: 1;
}

.page-hero {
  padding: 90px 0 65px;
  border-bottom: 1px solid var(--border);
}

.page-title {
  margin: 0;
  max-width: 850px;

  font-size: clamp(3.5rem, 7vw, 6.5rem);
  line-height: 0.95;

  font-weight: 750;
  letter-spacing: -0.06em;
}

.page-intro {
  max-width: 700px;
  margin: 32px 0 0;

  font-size: 1.15rem;
  line-height: 1.65;

  color: var(--muted);
}


/* ---------------- RESEARCH PAGE ---------------- */

.research-list {
  padding: 10px 0 90px;
}

.research-entry {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 70px;

  padding: 55px 0;

  border-bottom: 1px solid var(--border);
}

.research-meta p {
  margin: 0;
}

.research-year {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);

  letter-spacing: 0.08em;
}

.research-place {
  margin-top: 8px !important;

  font-size: 0.9rem;
  line-height: 1.5;

  color: var(--muted);
}

.research-content {
  max-width: 760px;
}

.research-content h2 {
  margin: 0;

  font-size: 1.65rem;
  line-height: 1.25;

  letter-spacing: -0.025em;
}

.research-role {
  margin: 8px 0 24px !important;

  color: var(--accent) !important;
  font-size: 0.9rem !important;
  font-weight: 700;
}

.research-content p {
  margin: 0 0 17px;

  font-size: 1rem;
  line-height: 1.7;

  color: var(--muted);
}

.research-note {
  font-style: italic;
}

.research-links {
  display: flex;
  gap: 22px;

  margin-top: 22px;
}

.research-links a {
  font-size: 0.9rem;
  font-weight: 650;

  border-bottom: 1px solid #aaa;

  padding-bottom: 2px;
}

.research-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
}


@media (max-width: 750px) {

  .page-hero {
    padding: 70px 0 50px;
  }

  .research-entry {
    grid-template-columns: 1fr;
    gap: 24px;

    padding: 40px 0;
  }

  .research-content h2 {
    font-size: 1.4rem;
  }

}

/* ---------------- PUBLICATIONS PAGE ---------------- */

.publications-list {
  padding: 10px 0 100px;
}

.publication-entry {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 70px;

  padding: 55px 0;

  border-bottom: 1px solid var(--border);
}

.publication-meta p {
  margin: 0;
}

.publication-year {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.publication-venue {
  margin-top: 8px !important;

  font-size: 0.9rem;
  color: var(--muted);
}

.publication-content {
  max-width: 800px;
}

.publication-content h2 {
  margin: 0;

  font-size: 1.75rem;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.publication-authors {
  margin: 13px 0 0;

  color: var(--muted);
  font-size: 0.95rem;
}

.publication-authors strong {
  color: var(--text);
  font-weight: 650;
}

.publication-description {
  margin: 20px 0 0;

  color: var(--muted);
  line-height: 1.65;
}

.publication-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;

  margin-top: 24px;
}

.publication-links a {
  font-size: 0.9rem;
  font-weight: 650;

  border-bottom: 1px solid #aaa;
  padding-bottom: 2px;
}

.publication-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
}


/* ABSTRACT */

.abstract {
  margin-top: 30px;
  padding-top: 22px;

  border-top: 1px solid var(--border);
}

.abstract summary {
  width: fit-content;

  cursor: pointer;

  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 650;
}

.abstract p {
  max-width: 760px;

  margin: 20px 0 0;

  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}


@media (max-width: 750px) {

  .publication-entry {
    grid-template-columns: 1fr;
    gap: 24px;

    padding: 40px 0;
  }

  .publication-content h2 {
    font-size: 1.4rem;
  }

}

/* ---------------- PROJECTS PAGE ---------------- */

.projects-list {
  padding: 10px 0 100px;
}

.project-entry {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 70px;

  padding: 55px 0;

  border-bottom: 1px solid var(--border);
}

.project-number {
  font-size: 0.85rem;
  font-weight: 700;

  color: var(--accent);

  letter-spacing: 0.08em;
}

.project-content {
  max-width: 760px;
}

.project-content h2 {
  margin: 0;

  font-size: 1.75rem;
  line-height: 1.25;

  letter-spacing: -0.025em;
}

.project-content p {
  max-width: 700px;

  margin: 18px 0 0;

  font-size: 1rem;
  line-height: 1.7;

  color: var(--muted);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;

  margin-top: 24px;
}

.project-tags span {
  padding: 6px 10px;

  border: 1px solid var(--border);

  font-size: 0.75rem;
  font-weight: 600;

  color: var(--muted);

  letter-spacing: 0.02em;
}


@media (max-width: 750px) {

  .project-entry {
    grid-template-columns: 1fr;
    gap: 20px;

    padding: 40px 0;
  }

  .project-content h2 {
    font-size: 1.4rem;
  }

}

/* ---------------- EDUCATION PAGE ---------------- */

.education-list {
  padding: 10px 0 100px;
}

.education-entry {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 70px;

  padding: 55px 0;

  border-bottom: 1px solid var(--border);
}

.education-meta p {
  margin: 0;
}

.education-year {
  font-size: 0.85rem;
  font-weight: 700;

  color: var(--accent);
  letter-spacing: 0.08em;
}

.education-place {
  margin-top: 8px !important;

  font-size: 0.9rem;
  color: var(--muted);
}

.education-content {
  max-width: 760px;
}

.education-content h2 {
  margin: 0;

  font-size: 1.75rem;
  line-height: 1.25;

  letter-spacing: -0.025em;
}

.education-institution {
  margin: 8px 0 24px !important;

  color: var(--accent) !important;
  font-size: 0.9rem !important;
  font-weight: 700;
}

.education-content > p {
  margin: 0 0 17px;

  font-size: 1rem;
  line-height: 1.7;

  color: var(--muted);
}

.coursework {
  margin-top: 25px;
}

.coursework-title {
  margin: 0 0 12px;

  font-size: 0.8rem;
  font-weight: 700;

  letter-spacing: 0.08em;
  text-transform: uppercase;

  color: var(--text);
}

.course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
}

.course-tags span {
  padding: 0;
  border: none;

  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
}

.course-tags span:not(:last-child)::after {
  content: " · ";
  white-space: pre;
  color: var(--accent);
}

@media (max-width: 750px) {

  .education-entry {
    grid-template-columns: 1fr;
    gap: 20px;

    padding: 40px 0;
  }

  .education-content h2 {
    font-size: 1.4rem;
  }

}