:root {
  --bg: #f7f8f6;
  --paper: #ffffff;
  --ink: #202020;
  --muted: #5d6660;
  --line: #d9ded8;
  --teal: #186f69;
  --berry: #9d3854;
  --gold: #b6852b;
  --soft-teal: #e8f2ef;
  --soft-berry: #f7ebef;
  --shadow: 0 18px 40px rgba(32, 32, 32, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.62;
}

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

a:hover,
a:focus-visible {
  color: var(--berry);
  text-decoration: underline;
}

.wrap {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(247, 248, 246, 0.94);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  color: var(--ink);
  font-size: 1.35rem;
  font-weight: 700;
}

.nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.92rem;
}

.nav a {
  color: var(--muted);
  padding: 4px 0;
}

.nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom: 2px solid var(--gold);
}

.hero {
  display: grid;
  grid-template-columns: minmax(240px, 270px) minmax(0, 1fr);
  gap: clamp(36px, 4vw, 56px);
  align-items: start;
  padding: 56px 0 48px;
}

.portrait-block {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.portrait-block img,
.sidebar img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-copy {
  min-width: 0;
  padding-top: 4px;
}

.hero-copy h1 {
  font-size: clamp(2.8rem, 4vw, 4rem);
  line-height: 1.05;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--berry);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.18;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(2.3rem, 4vw, 4.7rem);
}

h2 {
  margin: 0 0 14px;
  font-size: 1.35rem;
}

h3 {
  margin: 0 0 4px;
  font-size: 1.04rem;
}

.position {
  margin: 0 0 22px;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.96rem;
  line-height: 1.5;
}

.summary,
.lead {
  max-width: 760px;
  margin: 0;
  color: #303531;
}

.summary {
  font-size: 1.08rem;
  line-height: 1.7;
}

.lead {
  font-size: 1.18rem;
}

.quick-links,
.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
  font-family: Arial, Helvetica, sans-serif;
}

.quick-links {
  margin-top: 20px;
}

.quick-links a,
.profile-links a {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--teal);
  padding: 7px 12px;
  font-size: 0.88rem;
}

.quick-links a:hover,
.profile-links a:hover {
  border-color: var(--teal);
  text-decoration: none;
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding: 34px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.intro-grid article {
  min-width: 0;
}

.intro-grid p,
.section p,
.content p {
  margin: 0;
}

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

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
}

.section-heading a {
  flex: 0 0 auto;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
}

.topic-list,
.activity-list,
.content ul {
  margin: 0;
}

.topic-list {
  padding-left: 1.2rem;
}

.topic-list li + li,
.content li + li {
  margin-top: 8px;
}

.publication-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-left: 1.5rem;
}

.publication-list li {
  padding-left: 4px;
}

.pub-title {
  display: block;
  font-weight: 700;
}

.pub-meta {
  display: block;
  color: var(--muted);
}

.activity-list {
  display: grid;
  gap: 14px;
}

.page-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 52px;
  padding: 54px 0 60px;
}

.sidebar {
  align-self: start;
  position: sticky;
  top: 24px;
}

.sidebar img {
  aspect-ratio: 1;
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.sidebar h1 {
  margin-top: 18px;
  font-size: 1.55rem;
}

.sidebar p {
  color: var(--muted);
  font-size: 0.96rem;
}

.content {
  min-width: 0;
}

.content > h1 {
  font-size: clamp(2.1rem, 3vw, 3.2rem);
  line-height: 1.12;
  margin-bottom: 18px;
}

.content section {
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

.project-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.project-list article {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 20px;
}

.cv-entry {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 24px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.cv-entry p {
  color: var(--muted);
}

.cv h3 + ul {
  margin-top: 8px;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.88rem;
  padding: 24px 0;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 820px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .page-layout,
  .intro-grid,
  .project-list,
  .cv-entry {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 28px;
    padding-top: 42px;
  }

  .portrait-block,
  .sidebar img {
    max-width: 220px;
  }

  .sidebar {
    position: static;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

}

@media (max-width: 520px) {
  .wrap {
    width: min(100% - 28px, 1080px);
  }

  body {
    font-size: 16px;
  }

  .nav {
    gap: 6px 14px;
  }

  .quick-links a,
  .profile-links a {
    width: 100%;
    text-align: center;
  }
}