:root {
  color-scheme: dark;
  --bg: #080b10;
  --bg-soft: #0d121a;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-strong: rgba(255, 255, 255, 0.11);
  --text: #f5f7fb;
  --muted: #a8b2c4;
  --line: rgba(255, 255, 255, 0.14);
  --accent: #5ce1e6;
  --accent-2: #f5c45f;
  --accent-3: #ff6b6b;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 10%, rgba(92, 225, 230, 0.18), transparent 34rem),
    radial-gradient(circle at 90% 0%, rgba(255, 107, 107, 0.15), transparent 30rem),
    linear-gradient(180deg, #080b10 0%, #0c1119 44%, #080b10 100%);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

.field {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.48;
}

.section-wrap {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px max(20px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(8, 11, 16, 0.74);
  backdrop-filter: blur(18px);
}

.brand,
.nav,
.hero-actions,
.signal-row,
.contact-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 760;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(92, 225, 230, 0.24), rgba(245, 196, 95, 0.12));
  color: var(--accent);
  font-size: 0.83rem;
}

.nav {
  gap: 10px;
  font-size: 0.94rem;
  color: var(--muted);
}

.nav a {
  padding: 8px 12px;
  border-radius: 999px;
  transition:
    color 160ms ease,
    background 160ms ease;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.nav .nav-pill {
  color: #081018;
  background: var(--accent);
  font-weight: 700;
}

.hero {
  display: flex;
  align-items: center;
  min-height: calc(100vh - 75px);
  padding: 88px 0 96px;
}

.hero-copy {
  max-width: 980px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 26px;
  font-size: clamp(3.1rem, 8vw, 6.7rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  line-height: 1.18;
}

.hero-text {
  max-width: 740px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.hero-actions {
  flex-wrap: wrap;
  gap: 14px;
  margin: 34px 0 26px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  font-weight: 800;
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), #9ff3d5);
  color: #061017;
  box-shadow: 0 18px 44px rgba(92, 225, 230, 0.18);
}

.button.ghost {
  background: rgba(255, 255, 255, 0.05);
}

.signal-row {
  flex-wrap: wrap;
  gap: 10px;
}

.signal-row span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.intro-band,
.experience-band,
.contact-band {
  border-block: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.035);
}

.intro-grid,
.timeline-wrap,
.contact-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.1fr 0.75fr;
  gap: 30px;
  padding: 84px 0;
}

.intro-grid p:last-child,
.contact-grid p {
  color: var(--muted);
  font-size: 1.05rem;
}

.split-section,
.publication-section,
.writing-section {
  padding: 105px 0;
}

.split-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 44px;
}

.feature-list {
  display: grid;
  gap: 16px;
}

.feature-card,
.publication-card,
.writing-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  transition:
    border-color 170ms ease,
    background 170ms ease,
    transform 170ms ease;
}

.feature-card:hover,
.publication-card:hover,
.writing-card:hover {
  transform: translateY(-3px);
  border-color: rgba(92, 225, 230, 0.46);
  background: var(--surface-strong);
}

.feature-card {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 20px;
  padding: 26px;
}

.card-index {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(245, 196, 95, 0.34);
  border-radius: 8px;
  background: rgba(245, 196, 95, 0.08);
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 900;
}

.feature-body h3 {
  max-width: 620px;
  margin-bottom: 12px;
  font-size: 1.28rem;
}

.feature-card p,
.publication-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.method-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.method-row span {
  padding: 6px 10px;
  border: 1px solid rgba(92, 225, 230, 0.2);
  border-radius: 999px;
  color: #cbeff1;
  background: rgba(92, 225, 230, 0.07);
  font-size: 0.82rem;
  font-weight: 750;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}

.publication-list {
  display: grid;
  gap: 14px;
}

.publication-card {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 24px;
}

.pub-year {
  color: var(--accent-2);
  font-weight: 900;
}

.publication-card a {
  display: inline-flex;
  margin-top: 16px;
  color: var(--accent);
  font-weight: 800;
}

.timeline-wrap {
  grid-template-columns: 0.78fr 1.22fr;
}

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

.timeline-item {
  position: relative;
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 5px;
  left: -6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(92, 225, 230, 0.12);
}

.timeline-item span {
  color: var(--accent-2);
  font-size: 0.83rem;
  font-weight: 800;
}

.timeline-item p {
  margin-bottom: 0;
  color: var(--muted);
}

.project-list {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

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

.writing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.writing-card {
  min-height: 190px;
  padding: 22px;
}

.writing-card span {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 800;
}

.writing-card h3 {
  margin-top: 18px;
  font-size: 1.35rem;
}

.contact-grid {
  grid-template-columns: 1fr 1fr;
  align-items: center;
}

.contact-links {
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.contact-links a {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.site-footer {
  display: flex;
  justify-content: flex-end;
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 30px 0 42px;
  color: var(--muted);
  font-size: 0.94rem;
}

.site-footer a {
  color: var(--accent);
  font-weight: 800;
}

@keyframes float {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(0deg);
  }
  50% {
    transform: translate3d(-20px, 16px, 0) rotate(12deg);
  }
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .split-section,
  .intro-grid,
  .timeline-wrap,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 62px;
  }

  .intro-grid {
    gap: 16px;
  }

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

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

  .contact-links {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .section-wrap,
  .site-footer {
    width: min(calc(100% - 28px), var(--max));
  }

  .feature-card {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}