:root {
  color-scheme: light;
  --ink: #172433;
  --ink-soft: #465569;
  --muted: #6d798a;
  --line: #dfe5eb;
  --surface: #ffffff;
  --surface-soft: #f5f7f9;
  --surface-blue: #edf4ff;
  --accent: #2563a9;
  --accent-dark: #174a7e;
  --accent-light: #d9e9fb;
  --teal: #1e6a69;
  --shadow: 0 22px 60px rgba(26, 45, 67, 0.1);
  --radius-lg: 24px;
  --radius-md: 16px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--surface-soft);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(37, 99, 169, 0.35);
  outline-offset: 4px;
  border-radius: 4px;
}

::selection {
  background: var(--accent-light);
  color: var(--ink);
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  transform: translateY(-160%);
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(223, 229, 235, 0.85);
  background: rgba(245, 247, 249, 0.9);
  backdrop-filter: blur(16px);
}

.nav-shell {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 11px;
  background: var(--ink);
  color: #fff;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-links a {
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.nav-links a:not(.nav-cta):hover {
  color: var(--accent);
}

.nav-links .nav-cta {
  padding: 9px 15px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
  transition: background 160ms ease, color 160ms ease;
}

.nav-links .nav-cta:hover {
  background: var(--ink);
  color: #fff;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(72px, 10vw, 132px) 0 clamp(84px, 11vw, 144px);
  background:
    radial-gradient(circle at 84% 14%, rgba(133, 183, 231, 0.2), transparent 26rem),
    linear-gradient(180deg, #f8fafb 0%, var(--surface-soft) 100%);
}

.hero::after {
  position: absolute;
  right: -220px;
  bottom: -280px;
  width: 580px;
  height: 580px;
  border: 1px solid rgba(37, 99, 169, 0.12);
  border-radius: 50%;
  content: "";
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: clamp(56px, 8vw, 108px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(3.1rem, 5.8vw, 5rem);
  font-weight: 780;
  letter-spacing: -0.075em;
  line-height: 0.96;
}

.hero-headline {
  max-width: 750px;
  margin: 30px 0 20px;
  color: var(--ink);
  font-size: clamp(1.45rem, 2.5vw, 2.05rem);
  font-weight: 580;
  letter-spacing: -0.035em;
  line-height: 1.28;
}

.hero-summary {
  max-width: 735px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.06rem;
}

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

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.91rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--ink);
  box-shadow: 0 8px 22px rgba(23, 36, 51, 0.14);
  color: #fff;
}

.button-primary:hover {
  box-shadow: 0 12px 26px rgba(23, 36, 51, 0.2);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
}

.button-secondary:hover {
  border-color: #bdc8d3;
  background: #fff;
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 24px;
}

.profile-links a,
.footer-links a {
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 680;
  text-decoration-color: transparent;
  text-underline-offset: 4px;
}

.profile-links a:hover,
.footer-links a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

.profile-card {
  overflow: hidden;
  border: 1px solid rgba(207, 216, 225, 0.95);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow);
}

.portrait-frame {
  position: relative;
  aspect-ratio: 231 / 256;
  overflow: hidden;
  background: #e7ebef;
}

.portrait-frame::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 72%, rgba(15, 30, 44, 0.12));
  content: "";
  pointer-events: none;
}

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

.profile-card-body {
  padding: 24px 25px 27px;
}

.card-label {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 820;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.appointment {
  display: grid;
  gap: 1px;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.48;
}

.appointment + .appointment {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.appointment strong {
  color: var(--ink);
  font-size: 0.96rem;
}

.appointment-date {
  color: var(--muted);
  font-size: 0.78rem;
}

.section {
  padding: clamp(80px, 10vw, 128px) 0;
  scroll-margin-top: 72px;
}

.section-heading {
  display: grid;
  align-items: end;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  gap: clamp(32px, 7vw, 96px);
  margin-bottom: 52px;
}

.section-heading h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.05rem, 4vw, 3.45rem);
  font-weight: 740;
  letter-spacing: -0.055em;
  line-height: 1.08;
}

.section-heading > p {
  margin: 0 0 4px;
  color: var(--ink-soft);
}

.publications-section {
  border-top: 1px solid var(--line);
  background: var(--surface-soft);
}

.publications-heading h2 {
  font-size: clamp(2.6rem, 5vw, 4.4rem);
}

.publication-list {
  display: grid;
  gap: 18px;
}

.publication {
  display: grid;
  min-height: 286px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: 0 1px 1px rgba(23, 36, 51, 0.02);
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.42fr);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.publication:hover {
  transform: translateY(-3px);
  border-color: #cbd5df;
  box-shadow: 0 18px 44px rgba(24, 42, 62, 0.08);
}

.publication-featured {
  border-color: #bed3e9;
}

.publication-visual {
  min-height: 286px;
  border-right: 1px solid var(--line);
}

.image-visual {
  display: grid;
  padding: 24px;
  place-items: center;
  background:
    linear-gradient(rgba(227, 234, 241, 0.62) 1px, transparent 1px),
    linear-gradient(90deg, rgba(227, 234, 241, 0.62) 1px, transparent 1px),
    #f8fafc;
  background-size: 24px 24px;
}

.image-visual img {
  width: 100%;
  max-height: 224px;
  object-fit: contain;
  filter: drop-shadow(0 8px 14px rgba(25, 42, 61, 0.08));
}

.figure-link {
  display: grid;
  width: 100%;
  place-items: center;
  border-radius: 10px;
  text-decoration: none;
}

.figure-link:focus-visible {
  outline-offset: 6px;
}

.image-visual-stacked {
  padding: 18px;
}

.image-visual-stacked img {
  width: 100%;
  height: auto;
  max-width: 100%;
  max-height: 430px;
}

.publication-body {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 4vw, 44px);
}

.publication-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px 14px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 680;
  letter-spacing: 0.025em;
}

.venue {
  display: inline-flex;
  align-items: center;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--surface-blue);
  color: var(--accent-dark);
  font-size: 0.7rem;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.publication h3 {
  max-width: 690px;
  margin: 0;
  font-size: clamp(1.27rem, 2vw, 1.62rem);
  letter-spacing: -0.034em;
  line-height: 1.3;
}

.publication h3 a {
  text-decoration: none;
}

.publication h3 a:hover {
  color: var(--accent);
}

.authors {
  margin: 13px 0 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.authors strong {
  color: var(--ink);
}

.publication-summary {
  max-width: 690px;
  margin: 14px 0 0;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.publication-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 22px;
}

.text-link {
  color: var(--accent-dark);
  font-size: 0.84rem;
  font-weight: 780;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.contact-section {
  padding: 0 0 clamp(72px, 9vw, 112px);
  background: var(--surface-soft);
}

.contact-panel {
  display: flex;
  min-height: 260px;
  align-items: center;
  justify-content: space-between;
  gap: 44px;
  padding: clamp(36px, 6vw, 68px);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 82% 20%, rgba(79, 144, 205, 0.33), transparent 19rem),
    var(--ink);
  color: #fff;
}

.contact-panel h2 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(1.85rem, 3.5vw, 3rem);
  letter-spacing: -0.045em;
  line-height: 1.15;
}

.eyebrow-light {
  color: #9bc5ec;
}

.button-light {
  flex: 0 0 auto;
  background: #fff;
  color: var(--ink);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.footer-content {
  display: flex;
  min-height: 112px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.footer-content p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 50px;
  }

  .section-heading {
    align-items: start;
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .section-heading > p {
    max-width: 660px;
  }

  .publication {
    grid-template-columns: minmax(230px, 0.72fr) minmax(0, 1.28fr);
  }
}

@media (max-width: 720px) {
  .container {
    width: min(var(--container), calc(100% - 32px));
  }

  .nav-shell {
    min-height: 64px;
  }

  .brand-name {
    display: none;
  }

  .nav-links {
    gap: 18px;
  }

  .hero {
    padding-top: 64px;
  }

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

  .hero-copy {
    max-width: 660px;
  }

  .profile-card {
    display: grid;
    max-width: 560px;
    grid-template-columns: 42% 58%;
  }

  .portrait-frame {
    height: 100%;
    aspect-ratio: auto;
  }

  .profile-card-body {
    align-self: center;
  }

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

  .publication-visual {
    min-height: 230px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .image-visual img {
    max-height: 182px;
  }

  .image-visual-stacked img {
    max-height: none;
  }

  .contact-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-content {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 28px 0;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: clamp(2.75rem, 12.5vw, 3.25rem);
  }

  .hero-headline {
    margin-top: 24px;
  }

  .profile-links {
    gap: 10px 16px;
  }

  .profile-card {
    display: block;
  }

  .portrait-frame {
    aspect-ratio: 231 / 205;
  }

  .portrait-frame img {
    object-position: center 24%;
  }

  .section {
    padding: 72px 0;
  }

  .section-heading {
    margin-bottom: 36px;
  }

  .publication-body {
    padding: 26px 23px 30px;
  }

  .contact-section {
    padding-bottom: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .hero-actions,
  .profile-links,
  .contact-section,
  .site-footer {
    display: none;
  }

  body,
  .hero,
  .publications-section {
    background: #fff;
  }

  .hero,
  .section {
    padding: 32px 0;
  }

  .publication,
  .profile-card {
    break-inside: avoid;
    box-shadow: none;
  }
}