:root {
  color-scheme: dark;
  --bg: #06101f;
  --bg-deep: #040b15;
  --surface: #0a192e;
  --surface-raised: #0d213c;
  --surface-soft: #102844;
  --line: rgba(137, 177, 222, 0.18);
  --line-strong: rgba(91, 166, 255, 0.42);
  --text: #edf5ff;
  --muted: #9db0c6;
  --muted-strong: #bdd0e4;
  --blue: #4da3ff;
  --blue-bright: #76c8ff;
  --emerald: #38c6a3;
  --red: #a94b53;
  --shadow: 0 18px 50px rgba(0, 4, 12, 0.3);
  --radius: 18px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 78% 8%, rgba(37, 101, 184, 0.2), transparent 32rem),
    radial-gradient(circle at 12% 34%, rgba(25, 113, 120, 0.1), transparent 28rem),
    linear-gradient(180deg, #071426 0%, var(--bg) 45%, var(--bg-deep) 100%);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.65;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(130, 174, 220, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(130, 174, 220, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  border-radius: 8px;
  background: var(--text);
  color: var(--bg);
  font-weight: 800;
  transform: translateY(-180%);
}

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

.shell {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(125, 166, 210, 0.14);
  background: rgba(5, 14, 27, 0.8);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: linear-gradient(145deg, rgba(77, 163, 255, 0.18), rgba(56, 198, 163, 0.06));
  color: var(--blue-bright);
  font: 700 0.8rem/1 var(--mono);
  letter-spacing: 0.04em;
}

.brand-name {
  font-weight: 750;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.nav-links a {
  color: var(--muted-strong);
  font-size: 0.86rem;
  font-weight: 650;
  text-decoration: none;
  transition: color 160ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
}

.nav-links .nav-cta {
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--blue-bright);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, 0.82fr);
  align-items: center;
  gap: clamp(3rem, 5vw, 5rem);
  min-height: auto;
  padding-block: 5.25rem 4.75rem;
}

.eyebrow,
.section-index,
.paper-type,
.course-code,
.timeline-date,
.degree > span,
.award > span {
  color: var(--blue-bright);
  font: 700 0.76rem/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.4rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 18px rgba(56, 198, 163, 0.9);
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.75rem, 4.5vw, 4.35rem);
  line-height: 1.04;
  letter-spacing: -0.052em;
}

.hero-role {
  margin: 0.9rem 0 0;
  color: var(--blue-bright);
  font: 700 clamp(1rem, 1.5vw, 1.25rem)/1.4 var(--mono);
  letter-spacing: -0.02em;
}

.hero-intro {
  max-width: 700px;
  margin: 1.35rem 0 0;
  color: var(--muted-strong);
  font-size: clamp(0.98rem, 1.2vw, 1.08rem);
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 1.8rem;
}

.hero-links a {
  padding-bottom: 0.25rem;
  border-bottom: 1px solid rgba(118, 200, 255, 0.48);
  color: var(--muted-strong);
  font: 700 0.78rem/1.4 var(--mono);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease;
}

.hero-links a:hover,
.hero-links a:focus-visible {
  border-color: var(--blue-bright);
  color: var(--text);
}

.identity-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.5rem;
  margin-top: 1.9rem;
  color: var(--muted);
  font: 650 0.75rem/1.5 var(--mono);
  letter-spacing: 0.03em;
}

.identity-strip span {
  position: relative;
}

.identity-strip span:not(:last-child)::after {
  position: absolute;
  right: -0.9rem;
  color: rgba(118, 200, 255, 0.46);
  content: "/";
}

.signal-console {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  max-width: 520px;
  margin-left: auto;
  border-radius: 15px;
  background:
    linear-gradient(140deg, rgba(17, 47, 82, 0.94), rgba(6, 19, 37, 0.97)),
    var(--surface);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.signal-console::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: -20%;
  width: 1px;
  background: linear-gradient(transparent, rgba(112, 199, 255, 0.9), transparent);
  box-shadow: 0 0 24px rgba(77, 163, 255, 0.9);
  content: "";
  animation: scan 7s linear infinite;
}

.console-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted-strong);
  font: 700 0.72rem/1 var(--mono);
  letter-spacing: 0.08em;
}

.live-indicator {
  color: var(--emerald);
}

.signal-visual {
  display: block;
  width: 100%;
  height: auto;
  padding: 0.5rem 0.8rem 0;
}

.grid-lines path {
  fill: none;
  stroke: rgba(128, 174, 220, 0.1);
  stroke-width: 1;
}

.axis-label,
.tick-label {
  fill: #8fa9c4;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.tick-label {
  font-size: 10px;
}

.wave-shadow {
  fill: none;
  stroke: rgba(60, 177, 255, 0.18);
  stroke-width: 10;
  filter: blur(4px);
}

.wave-line {
  fill: none;
  stroke: url(#waveGradient);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 3;
}

.spectrum-bars rect {
  fill: url(#barGradient);
}

.spectrum-bars rect:nth-child(5n + 3) {
  fill: var(--emerald);
  opacity: 0.72;
}

.spectrum-baseline {
  fill: none;
  stroke: rgba(118, 200, 255, 0.56);
  stroke-width: 1;
}

.console-readout {
  display: grid;
  gap: 0.55rem;
  padding: 1.1rem 1.25rem 1.35rem;
  border-top: 1px solid var(--line);
  font: 600 0.73rem/1.4 var(--mono);
}

.console-readout div {
  display: grid;
  grid-template-columns: 7.4rem 1fr;
  gap: 0.75rem;
}

.console-readout span {
  color: #708ba8;
}

.console-readout strong {
  overflow-wrap: anywhere;
  color: var(--muted-strong);
  font-weight: 600;
}

.section {
  padding-block: 5.6rem;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  column-gap: 2rem;
  row-gap: 0.7rem;
  align-items: start;
  margin-bottom: 2.6rem;
}

.section-heading > * {
  margin-top: 0;
}

.section-heading h2,
.contact-section h2 {
  margin-bottom: 0;
  font-size: clamp(1.75rem, 2.5vw, 2.55rem);
  line-height: 1.14;
  letter-spacing: -0.038em;
}

.section-heading > p:last-child {
  grid-column: 2;
  grid-row: 2;
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
}

.section-index {
  width: 2ch;
  margin-bottom: 0;
  overflow: hidden;
  white-space: nowrap;
}

.section-heading .section-index {
  grid-column: 1;
  grid-row: 1;
  padding-top: 0.45rem;
}

.section-heading h2 {
  grid-column: 2;
  grid-row: 1;
}

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

.research-card,
.teaching-card,
.award,
.degree {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(14, 35, 63, 0.72), rgba(7, 20, 39, 0.72));
}

.research-card {
  min-height: 230px;
  padding: 1.55rem;
  transition: border-color 180ms ease;
}

.research-card:hover {
  border-color: var(--line-strong);
}

.featured-research {
  background:
    linear-gradient(145deg, rgba(28, 74, 126, 0.54), rgba(7, 25, 45, 0.8)),
    var(--surface);
}

.card-number {
  color: var(--emerald);
  font: 700 0.73rem/1 var(--mono);
  letter-spacing: 0.1em;
}

.research-card h3,
.teaching-card h3 {
  margin: 1.7rem 0 0.7rem;
  font-size: 1.2rem;
  line-height: 1.22;
  letter-spacing: -0.025em;
}

.research-card p,
.teaching-card p {
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.4rem;
}

.tag-row span,
.journal-list span {
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(18, 43, 74, 0.56);
  color: var(--muted-strong);
  font: 600 0.7rem/1.3 var(--mono);
}

.featured-paper {
  position: relative;
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr) 120px;
  gap: 1.8rem;
  overflow: hidden;
  padding: 2rem;
  border: 1px solid rgba(77, 163, 255, 0.52);
  border-radius: 16px;
  background:
    linear-gradient(120deg, rgba(16, 52, 92, 0.88), rgba(7, 24, 44, 0.94)),
    var(--surface);
  box-shadow: 0 24px 70px rgba(0, 7, 18, 0.28);
}

.featured-paper::after {
  position: absolute;
  inset: 0;
  border-top: 2px solid rgba(118, 200, 255, 0.8);
  content: "";
  pointer-events: none;
}

.paper-status {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.7rem;
}

.paper-status span {
  color: var(--blue-bright);
  font: 800 0.72rem/1.35 var(--mono);
  letter-spacing: 0.1em;
}

.paper-status span:first-child {
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--emerald);
}

.paper-content h3 {
  max-width: 760px;
  margin: 0.65rem 0 0.9rem;
  font-size: clamp(1.4rem, 2vw, 1.9rem);
  line-height: 1.24;
  letter-spacing: -0.025em;
}

.authors,
.venue,
.paper-summary {
  color: var(--muted);
}

.authors strong,
.publication-item strong {
  color: var(--text);
}

.paper-summary {
  max-width: 720px;
  margin-block: 1.25rem;
}

.text-link,
.publication-item > a {
  color: var(--blue-bright);
  font: 750 0.78rem/1.4 var(--mono);
  letter-spacing: 0.04em;
  text-decoration: none;
}

.text-link:hover,
.publication-item > a:hover {
  text-decoration: underline;
}

.paper-signal {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 5px;
  height: 100%;
  opacity: 0.75;
}

.paper-signal span {
  width: 6px;
  min-height: 12%;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(var(--blue-bright), rgba(77, 163, 255, 0.15));
}

.paper-signal span:nth-child(2) { height: 24%; }
.paper-signal span:nth-child(3) { height: 62%; }
.paper-signal span:nth-child(4) { height: 90%; }
.paper-signal span:nth-child(5) { height: 54%; }
.paper-signal span:nth-child(6) { height: 30%; }
.paper-signal span:nth-child(7) { height: 72%; background: linear-gradient(var(--emerald), rgba(56, 198, 163, 0.12)); }
.paper-signal span:nth-child(8) { height: 42%; }
.paper-signal span:nth-child(9) { height: 26%; }
.paper-signal span:nth-child(10) { height: 52%; }
.paper-signal span:nth-child(11) { height: 22%; }
.paper-signal span:nth-child(12) { height: 14%; }

.publication-list {
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.publication-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 75px;
  gap: 2rem;
  align-items: start;
  padding: 1.65rem 0;
  border-bottom: 1px solid var(--line);
}

.publication-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  color: var(--muted);
  font: 700 0.7rem/1.4 var(--mono);
  letter-spacing: 0.08em;
}

.publication-meta span {
  color: var(--emerald);
}

.publication-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.18rem;
  line-height: 1.35;
}

.publication-item p {
  margin: 0.25rem 0;
  color: var(--muted);
}

.split-section {
  display: block;
}

.compact-heading {
  margin-bottom: 2.2rem;
}

.compact-heading h2 {
  margin-top: 0;
}

.timeline {
  margin-left: calc(72px + 2rem);
  border-top: 1px solid var(--line);
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 2rem;
  padding-block: 2rem;
  border-bottom: 1px solid var(--line);
}

.timeline-item h3 {
  margin: 0;
  font-size: 1.35rem;
}

.timeline-item p {
  color: var(--muted);
}

.timeline-item .role-place {
  color: var(--muted-strong);
  font-weight: 700;
}

.subtle {
  color: #7890aa !important;
  font-size: 0.9rem;
}

.teaching-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.teaching-card {
  display: flex;
  flex-direction: column;
  min-height: 285px;
  padding: 1.55rem;
}

.teaching-card h3 {
  margin-top: 2rem;
}

.teaching-role {
  margin-top: auto;
  padding-top: 1.2rem;
  color: var(--emerald);
  font: 650 0.7rem/1.5 var(--mono);
}

.course-details {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(8, 24, 44, 0.7);
}

.course-details summary {
  padding: 1.1rem 1.4rem;
  cursor: pointer;
  color: var(--muted-strong);
  font: 700 0.78rem/1.4 var(--mono);
  letter-spacing: 0.05em;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  padding: 0 1.4rem 1.4rem;
}

.detail-grid h3 {
  font-size: 1rem;
}

.detail-grid p {
  color: var(--muted);
}

.credentials-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4rem;
}

.degree,
.award {
  margin-top: 1rem;
  padding: 1.45rem;
}

.degree h3,
.award h3 {
  margin: 0.55rem 0 0.35rem;
  font-size: 1.14rem;
}

.degree p,
.award p {
  margin: 0.25rem 0;
  color: var(--muted);
}

.featured-award {
  border-color: rgba(56, 198, 163, 0.38);
  background: linear-gradient(145deg, rgba(19, 78, 76, 0.34), rgba(7, 24, 42, 0.78));
}

.skill-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.skill-groups > div {
  min-height: 170px;
  padding: 1.6rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.skill-groups h3 {
  margin-top: 0;
  font-size: 1rem;
}

.skill-groups p {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.service-section > p {
  max-width: 720px;
  color: var(--muted);
}

.journal-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.6rem;
}

.contact-section {
  border-top: 1px solid var(--line);
  background:
    linear-gradient(110deg, rgba(24, 72, 123, 0.5), rgba(5, 19, 35, 0.86)),
    var(--surface);
}

.contact-inner {
  padding-block: 5.6rem;
}

.contact-inner h2 {
  max-width: 780px;
  margin: 1.2rem 0;
}

.contact-inner > p:not(.section-index) {
  max-width: 700px;
  color: var(--muted-strong);
}

.contact-email {
  display: inline-block;
  margin-top: 1.4rem;
  color: var(--blue-bright);
  font: 750 clamp(1.1rem, 2.4vw, 1.75rem)/1.3 var(--mono);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.contact-email:hover {
  text-decoration: underline;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.5rem;
  margin-top: 2.2rem;
}

.social-links a {
  color: var(--muted-strong);
  font: 700 0.78rem/1.5 var(--mono);
  text-decoration: none;
}

.social-links a:hover {
  color: var(--text);
}

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

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.6rem;
  color: #71869d;
  font: 600 0.7rem/1.5 var(--mono);
}

@keyframes scan {
  from { left: -20%; }
  to { left: 120%; }
}

@media (max-width: 1050px) {
  .nav-links a:not(.nav-cta) {
    display: none;
  }

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

  .signal-console {
    width: min(660px, 100%);
  }

  .section-heading {
    grid-template-columns: 72px minmax(0, 1fr);
  }

  .teaching-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 28px, 1180px);
  }

  .brand-name {
    display: none;
  }

  .hero {
    padding-block: 5rem 4rem;
  }

  .hero h1 {
    font-size: clamp(2.45rem, 12vw, 3.7rem);
  }

  .identity-strip span::after {
    display: none;
  }

  .console-readout div {
    grid-template-columns: 6.2rem 1fr;
  }

  .section {
    padding-block: 4.5rem;
  }

  .credentials-section {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }

  .section-heading {
    grid-template-columns: 44px minmax(0, 1fr);
    column-gap: 1rem;
    row-gap: 0.65rem;
  }

  .section-heading > p:last-child {
    grid-column: 2;
  }

  .timeline {
    margin-left: 0;
  }

  .research-grid,
  .teaching-grid,
  .skill-groups,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .featured-paper {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }

  .paper-status {
    flex-direction: row;
    align-items: center;
  }

  .paper-signal {
    display: none;
  }

  .publication-item,
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .publication-item > a {
    justify-self: start;
  }

  .teaching-card {
    min-height: 280px;
  }

  .footer-inner {
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  :root {
    color-scheme: light;
  }

  body {
    background: #fff;
    color: #111;
  }

  .site-header,
  .signal-console,
  .hero-links,
  .contact-section,
  .site-footer {
    display: none;
  }

  .section,
  .research-card,
  .teaching-card,
  .award,
  .degree,
  .featured-paper {
    break-inside: avoid;
    border-color: #ccc;
    background: #fff;
    color: #111;
  }
}