:root {
  --ink: #0b1210;
  --ink-soft: #121a17;
  --panel: #16201c;
  --paper: #e7efe9;
  --muted: #9aada2;
  --line: rgba(231, 239, 233, 0.12);
  --accent: #3f9f7a;
  --accent-strong: #55c295;
  --warm: #d8b48a;
  --radius: 2px;
  --max: 1120px;
  --header-h: 4.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Syne", sans-serif;
  --font-body: "Sora", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--paper);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(63, 159, 122, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 5%, rgba(216, 180, 138, 0.08), transparent 50%),
    linear-gradient(180deg, var(--ink) 0%, #0e1613 40%, var(--ink) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(231, 239, 233, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(231, 239, 233, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 85%);
}

body > * {
  position: relative;
  z-index: 1;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--accent-strong);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  background: var(--accent);
  color: var(--ink);
  padding: 0.75rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  transition: background 0.35s var(--ease), backdrop-filter 0.35s var(--ease),
    border-color 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(11, 18, 16, 0.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.header-inner {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.wordmark:hover {
  color: var(--paper);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav a {
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--muted);
  transition: color 0.25s var(--ease);
}

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

.nav-cta {
  color: var(--ink) !important;
  background: var(--paper);
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius);
  transition: background 0.25s var(--ease), transform 0.25s var(--ease) !important;
}

.nav-cta:hover {
  background: var(--accent-strong) !important;
  color: var(--ink) !important;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 1.1rem;
  height: 1.5px;
  margin: 0.35rem auto;
  background: var(--paper);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  align-items: end;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  transform: scale(1.04);
  animation: hero-zoom 18s var(--ease) forwards;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 18, 16, 0.92) 0%, rgba(11, 18, 16, 0.72) 42%, rgba(11, 18, 16, 0.35) 100%),
    linear-gradient(180deg, rgba(11, 18, 16, 0.35) 0%, rgba(11, 18, 16, 0.15) 35%, rgba(11, 18, 16, 0.92) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: calc(var(--header-h) + 3rem) 0 4.5rem;
  max-width: 40rem;
  margin-left: max(1.25rem, calc((100% - var(--max)) / 2));
}

.hero-brand {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.045em;
  color: var(--paper);
  animation: rise 0.9s var(--ease) both;
}

.hero-title {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.8vw, 2rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.03em;
  max-width: 18ch;
  animation: rise 0.9s var(--ease) 0.12s both;
}

.hero-lede {
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: 1.02rem;
  max-width: 36ch;
  animation: rise 0.9s var(--ease) 0.22s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  animation: rise 0.9s var(--ease) 0.32s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
    border-color 0.25s var(--ease), color 0.25s var(--ease);
}

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

.btn-primary {
  background: var(--accent);
  color: var(--ink);
}

.btn-primary:hover {
  background: var(--accent-strong);
  color: var(--ink);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--paper);
}

.btn-ghost:hover {
  border-color: rgba(231, 239, 233, 0.35);
  color: var(--paper);
}

.section {
  padding: 6.5rem 0;
}

.section-intro {
  max-width: 38rem;
  margin-bottom: 3.25rem;
}

.eyebrow {
  margin: 0 0 0.85rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.section h2 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.section-copy {
  margin: 0;
  color: var(--muted);
  max-width: 42ch;
}

.focus-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem 2.5rem;
  border-top: 1px solid var(--line);
  padding-top: 2.5rem;
}

.focus-list h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.focus-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.work-list {
  display: flex;
  flex-direction: column;
}

.work-item {
  display: grid;
  grid-template-columns: minmax(10rem, 0.9fr) 1.4fr;
  gap: 2rem;
  padding: 2.1rem 0;
  border-top: 1px solid var(--line);
}

.work-item:last-child {
  border-bottom: 1px solid var(--line);
}

.work-index {
  display: block;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--warm);
  margin-bottom: 0.85rem;
  letter-spacing: 0.04em;
}

.tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.85rem;
}

.tags li {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.work-body h3 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.025em;
}

.work-body p {
  margin: 0;
  color: var(--muted);
  max-width: 52ch;
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.timeline > li {
  display: grid;
  grid-template-columns: minmax(14rem, 0.85fr) 1.4fr;
  gap: 1.75rem 2.5rem;
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}

.timeline > li:last-child {
  border-bottom: 1px solid var(--line);
}

.timeline-role {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.timeline-org {
  margin: 0 0 0.35rem;
  color: var(--accent-strong);
  font-weight: 500;
  font-size: 0.95rem;
}

.timeline-dates {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

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

.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  border-top: 1px solid var(--line);
  padding-top: 2.5rem;
}

.stack-grid h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.stack-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.pub-list li + li {
  margin-top: 0;
}

.pub-list a {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 0.35rem 1.5rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  text-decoration: none;
  transition: background 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.pub-list li:last-child a {
  border-bottom: 1px solid var(--line);
}

.pub-list a:hover {
  background: rgba(63, 159, 122, 0.06);
  padding-left: 0.75rem;
  color: inherit;
}

.pub-stat {
  grid-row: span 2;
  align-self: start;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--warm);
  letter-spacing: 0.02em;
  padding-top: 0.2rem;
}

.pub-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.pub-meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.research-note {
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.research-note a {
  color: var(--accent-strong);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 3.5rem;
  align-items: start;
}

.about-copy p {
  color: var(--muted);
}

.about-copy p + p {
  margin-top: 1rem;
}

.creds {
  list-style: none;
  margin: 2rem 0 0;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line);
}

.creds li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.creds strong {
  color: var(--paper);
  font-weight: 600;
  margin-right: 0.35rem;
}

.about-portrait {
  margin: 0;
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
}

.about-portrait img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(18%) contrast(1.05);
  border-radius: var(--radius);
}

.about-portrait figcaption {
  margin-top: 0.9rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.contact {
  padding-bottom: 7rem;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: end;
  padding: 3rem 0 0;
  border-top: 1px solid var(--line);
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0 2rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-inner a {
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes hero-zoom {
  from {
    transform: scale(1.08);
  }
  to {
    transform: scale(1);
  }
}

@media (max-width: 900px) {
  .focus-list,
  .stack-grid,
  .about-grid,
  .contact-panel,
  .work-item,
  .timeline > li {
    grid-template-columns: 1fr;
  }

  .focus-list,
  .stack-grid {
    gap: 1.75rem;
  }

  .pub-list a {
    grid-template-columns: 1fr;
  }

  .pub-stat {
    grid-row: auto;
  }

  .about-portrait {
    position: static;
    max-width: 22rem;
  }

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

  .hero-content {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 1.25rem 1.25rem;
    background: rgba(11, 18, 16, 0.96);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-cta {
    margin-top: 0.75rem;
    text-align: center;
  }

  .section {
    padding: 4.5rem 0;
  }

  .hero-content {
    padding-bottom: 3.25rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}