:root {
  --bg: #f7f8f6;
  --paper: #ffffff;
  --ink: #1f2430;
  --muted: #5a6373;
  --line: #dfe3ea;
  --accent: #0f4c5c;
  --accent-soft: #e7f1f4;
  --maxw: 980px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Source Sans 3", sans-serif;
  background:
    radial-gradient(circle at 92% 8%, #e5efef 0%, transparent 35%),
    radial-gradient(circle at 8% 18%, #eef3e8 0%, transparent 30%),
    var(--bg);
  line-height: 1.65;
}

h1,
h2,
h3 {
  font-family: "Crimson Text", serif;
  line-height: 1.2;
  margin: 0 0 0.6rem;
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(var(--maxw), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(6px);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--line);
  z-index: 10;
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 64px;
}

.brand {
  font-family: "Crimson Text", serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: var(--muted);
  font-weight: 600;
}

.hero {
  padding: 4.2rem 0 2.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--line);
  box-shadow: 0 10px 24px rgba(16, 24, 40, 0.08);
  margin-bottom: 0.9rem;
  background: var(--paper);
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.subtitle {
  max-width: 58ch;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 0.8rem;
  margin-top: 1.3rem;
}

.btn {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  padding: 0.52rem 0.92rem;
  border-radius: 6px;
  font-weight: 600;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.profile-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 1rem 1.1rem;
}

.profile-card ul {
  margin: 0;
  padding-left: 1.1rem;
}

#profile-list {
  display: grid;
  gap: 0.55rem;
}

.profile-row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 0.5rem;
  align-items: start;
}

.profile-label {
  color: var(--muted);
  font-weight: 600;
}

.profile-label::after {
  content: ":";
}

.profile-value {
  word-break: normal;
  overflow-wrap: break-word;
}

.section {
  padding: 2.7rem 0;
}

.section-alt {
  background: color-mix(in srgb, var(--paper) 70%, #f2f5f0);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.narrow {
  max-width: 70ch;
}

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

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.7rem;
}

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

.pub-list {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.pub-item {
  margin-bottom: 1.2rem;
  padding: 0.8rem 1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.pub-item h3 {
  margin-bottom: 0.35rem;
}

.authors,
.meta,
.links {
  margin: 0.24rem 0;
}

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

.links {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.link-placeholder {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.site-footer {
  padding: 2rem 0 2.3rem;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-top: 1.2rem;
}

.copyright {
  color: var(--muted);
  align-self: flex-end;
}

@media (max-width: 860px) {
  .hero-grid,
  .cards,
  .split {
    grid-template-columns: 1fr;
  }

  .nav-wrap {
    flex-direction: column;
    justify-content: center;
    padding: 0.7rem 0;
    gap: 0.5rem;
  }

  .nav-list {
    flex-wrap: wrap;
    justify-content: center;
  }

  .avatar {
    width: 100px;
    height: 100px;
  }
}