:root {
  --bg: #0f172a;
  --text: #bec9d6;
  --muted: #8694a6;
  --line: rgba(148, 163, 184, 0.22);
  --accent: #7dd3fc;
  --accent-2: #c084fc;
  --white: #d2dce7;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  --space-section: 50px;
  --space-title: 12px;
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  overflow-anchor: none;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(125, 211, 252, 0.18), transparent 34rem),
    radial-gradient(circle at top right, rgba(192, 132, 252, 0.18), transparent 30rem),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(15, 23, 42, 0.78);
  border-bottom: 1px solid var(--line);
}

.nav {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.94rem;
  color: var(--muted);
}

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

.language-toggle {
  color: #0f172a;
  background: var(--accent);
  border: 0;
  border-radius: 999px;
  padding: 8px 12px;
  font: inherit;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
}

.language-toggle:hover {
  background: #cedae5;
}

main {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 56px;
  align-items: start;
  padding: var(--space-section) 0;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.hero-text .eyebrow {
  margin-bottom: var(--space-title);
}

h1, h2, h3 { line-height: 1.15; margin: 0; }
h1 {
  font-size: clamp(3.7rem, 9vw, 7.2rem);
  letter-spacing: -0.07em;
  color: #d2dce7;
  text-shadow: 0 12px 40px rgba(125, 211, 252, 0.12);
  min-height: 1.15em;
}

.lang-en h1 {
  max-width: 11ch;
  min-height: 2.3em;
}
h2 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1;
  letter-spacing: -0.05em;
}
h3 { font-size: 1.1rem; letter-spacing: -0.02em; }

.subtitle {
  max-width: 760px;
  color: #b4c1cf;
  font-size: 1.18rem;
  margin: 24px 0 0;
}

.subtitle.small {
  font-size: 1rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid var(--line);
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0f172a;
  border: none;
}

.profile-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.avatar {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 28px;
  border: 1px solid rgba(229, 231, 235, 0.22);
  object-fit: cover;
  margin-bottom: 22px;
}

.profile-card h2 {
  font-size: 1.85rem;
  color: var(--white);
  min-height: 2.2rem;
}

.lang-en .profile-card h2 {
  font-size: 1.58rem;
}
.profile-card p { margin: 6px 0; color: var(--muted); }

.profile-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 18px;
}

.profile-links a {
  border: 1px solid var(--line);
  color: #bdc9d8;
  padding: 7px 11px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
  text-align: center;
  text-shadow: none;
}

.section {
  display: grid;
  row-gap: var(--space-section);
  padding: var(--space-section) 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  gap: var(--space-title);
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  color: #bec9d6;
  font-size: 1.04rem;
  align-items: start;
}

.content-grid p {
  margin: 0;
}

.publication-list { display: block; }

#publications {
  row-gap: var(--space-title);
}

.publication + .publication {
  margin-top: 14px;
}

.publication-group {
  margin: var(--space-section) 0;
  color: #d1dbe6;
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 900;
  letter-spacing: -0.05em;
}

.publication-group:first-child {
  margin-top: 0;
}

.publication {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  align-items: start;
  gap: 16px;
  padding: 18px 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--line);
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.publication:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(125, 211, 252, 0.45);
}

.pub-year {
  font-weight: 900;
  color: var(--accent);
}

.publication p {
  margin: 8px 0 0;
  color: var(--muted);
}

.venue {
  color: #bfcede;
  font-weight: 750;
  text-decoration: underline;
  text-decoration-color: rgba(125, 211, 252, 0.38);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.me {
  color: #c0ccd9;
  font-weight: 800;
}

.note { color: #d8b4fe; }

.timeline { display: grid; gap: 18px; }

.subsection-title {
  margin: 0;
  color: #d1dbe6;
  font-weight: 900;
}

.timeline-item {
  padding: 24px;
  border-left: 3px solid var(--accent);
  background: rgba(255, 255, 255, 0.045);
  border-radius: 0 22px 22px 0;
}

.time {
  display: inline-block;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.timeline-item p {
  margin: 8px 0 0;
  color: #bec9d6;
}

.timeline-item .location {
  margin-top: 2px;
  color: var(--muted);
}

.experience-list {
  margin: 14px 0 0;
  padding-left: 1.15rem;
  color: #bec9d6;
}

.experience-list li {
  margin: 8px 0;
}

.experience-list li::marker {
  color: var(--accent);
}

.muted { color: var(--muted) !important; }

.chips {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.chips span {
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.045);
  color: #bfcede;
  font-weight: 700;
}

footer {
  display: grid;
  place-items: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  text-align: center;
  padding: calc(var(--space-section) / 2) 20px;
}

footer p {
  margin: 0;
  line-height: 1;
}

@media (max-width: 860px) {
  .nav {
    height: auto;
    padding: 18px 0;
    align-items: flex-start;
    gap: 14px;
    flex-direction: column;
  }

  .nav-links {
    gap: 12px;
    flex-wrap: wrap;
  }

  .hero,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: var(--space-section);
    gap: 34px;
  }

  .publication {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  h1 {
    font-size: clamp(3.2rem, 16vw, 5rem);
  }

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