:root {
  color-scheme: light;
  --bg: #f7f4ee;
  --surface: #ffffff;
  --surface-muted: #ece7dd;
  --text: #1f2933;
  --muted: #5b6472;
  --accent: #19636d;
  --accent-strong: #114a51;
  --line: #d9d3c8;
  --shadow: 0 18px 50px rgba(31, 41, 51, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(217, 211, 200, 0.8);
  background: rgba(247, 244, 238, 0.94);
  backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1120px, calc(100% - 32px));
  min-height: 68px;
  margin: 0 auto;
  gap: 24px;
}

.brand {
  color: var(--text);
  font-weight: 750;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--text);
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  align-items: center;
  gap: 48px;
  min-height: calc(100vh - 68px);
  padding: 64px 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 750;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.lead {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.25rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.profile-card,
.item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.profile-card {
  padding: 28px;
}

.portrait {
  width: 148px;
  height: 148px;
  margin-bottom: 28px;
  border-radius: 50%;
  background: var(--surface-muted);
  object-fit: cover;
}

dl {
  display: grid;
  gap: 18px;
  margin: 0;
}

dt {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
  text-transform: uppercase;
}

dd {
  margin: 2px 0 0;
}

.section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 20px;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  line-height: 1.1;
}

.section > p {
  max-width: 780px;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.item {
  padding: 22px;
}

.item h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
}

.item p {
  margin: 0;
  color: var(--muted);
}

.publication-list,
.plain-list {
  margin: 0;
  padding-left: 1.2rem;
}

.publication-list {
  display: grid;
  gap: 16px;
  max-width: 900px;
}

.plain-list {
  color: var(--muted);
}

.contact p {
  margin-bottom: 12px;
}

.contact a + a {
  margin-left: 12px;
}

.footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 14px 0;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 10px 16px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 52px 0;
  }

  .profile-card {
    max-width: 460px;
  }

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

@media (max-width: 480px) {
  main,
  .nav,
  .footer {
    width: min(100% - 24px, 1120px);
  }

  h1 {
    font-size: 3rem;
  }

  .lead {
    font-size: 1.08rem;
  }

  .button {
    width: 100%;
  }

  .contact a {
    display: inline-block;
    margin: 4px 12px 0 0;
  }

  .contact a + a {
    margin-left: 0;
  }
}