:root {
  --page-bg: #EDEFF1;
  --card-bg: #FFFFFF;
  --ink: #3C4858;
  --ink-soft: #6B7684;
  --muted: #93A2B4;
  --accent: #0047AB;
  --line: #DFE3E7;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--page-bg);
  color: var(--ink-soft);
  font-family: -apple-system, system-ui, "Segoe UI", Arial, sans-serif;
  line-height: 1.7;
}

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

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  color: var(--ink);
  font-weight: 600;
  margin: 0 0 12px;
}

/* Header */
.site-header {
  background: var(--card-bg);
  text-align: center;
  padding: 40px 24px 28px;
  border-bottom: 1px solid var(--line);
}

.site-header .name {
  margin: 0;
  font-size: 34px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--ink);
}

/* Nav */
.site-nav {
  background: var(--card-bg);
  border-bottom: 1px solid var(--line);
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 44px;
  list-style: none;
  margin: 0;
  padding: 18px 24px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

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

.nav-links a[aria-current="page"] { color: var(--ink); }

/* Page body */
.page-body { padding: 48px 24px 72px; }

.card {
  background: var(--card-bg);
  max-width: 960px;
  margin: 0 auto 32px;
  padding: 44px 48px;
  border: 1px solid var(--line);
}

.card h2 {
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}

/* About */
.about-layout {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

.about-layout .about-text { flex: 1; min-width: 0; }
.about-layout .about-text p { margin: 0 0 16px; }
.about-layout .about-text p:last-child { margin-bottom: 0; }

.avatar {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--page-bg);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.avatar img { width: 100%; height: 100%; object-fit: cover; }

.avatar .initials {
  font-size: 40px;
  font-weight: 600;
  color: var(--ink);
}

/* Publications */
.pub-list { list-style: none; margin: 0; padding: 0; }

.pub-list li { padding: 18px 0; border-top: 1px solid var(--line); }
.pub-list li:first-child { border-top: none; padding-top: 0; }

.pub-list .pub-title { font-size: 16px; font-weight: 600; color: var(--ink); margin: 0; }
.pub-list .pub-meta { display: block; font-size: 13.5px; color: var(--ink-soft); margin-top: 4px; }
.pub-list .pub-date { display: block; font-size: 13.5px; color: var(--ink-soft); margin-top: 2px; }
.pub-list .pub-link { display: inline-block; font-size: 13.5px; font-weight: 600; margin-top: 8px; }

/* Projects (empty state) */
.empty-note { color: var(--muted); font-style: italic; margin: 0; }

/* CV */
.cv-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 11px 22px;
  font-weight: 600;
  font-size: 14px;
  border-radius: 3px;
}

.cv-download:hover { background: #003580; text-decoration: none; }

.cv-box { padding: 28px 48px; text-align: center; }

.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { padding: 10px 0; border-top: 1px solid var(--line); font-size: 14.5px; }
.contact-list li:first-child { border-top: none; }
.contact-list strong { color: var(--ink); font-weight: 600; margin-right: 6px; }
.contact-list a { font-weight: 600; }

/* Footer */
footer {
  text-align: center;
  padding: 24px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 640px) {
  .card { padding: 32px 24px; }
  .about-layout { flex-direction: column-reverse; text-align: center; }
  .about-layout .avatar { margin: 0 auto; }
  .nav-links { gap: 20px 28px; }
}