:root {
  --paper: #fbfaf7;
  --paper-soft: #eee9df;
  --ink: #171713;
  --muted: #5f5c55;
  --line: rgba(23, 23, 19, 0.12);
  --teal: #275f59;
  --teal-dark: #194a45;
  --brass: #9d793f;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(251, 250, 247, 0.93);
  border-bottom: 1px solid rgba(27, 27, 24, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.06rem;
  font-weight: 600;
  letter-spacing: 0;
}

nav {
  display: flex;
  gap: clamp(14px, 2.2vw, 30px);
  color: var(--muted);
  font-size: 0.92rem;
}

nav a:hover,
.contact-links a:hover {
  color: var(--teal-dark);
}

.hero {
  position: relative;
  min-height: 72vh;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-visual {
  position: absolute;
  inset: 0;
  display: block;
  background:
    linear-gradient(90deg, rgba(250, 249, 246, 0.98) 0%, rgba(250, 249, 246, 0.9) 46%, rgba(250, 249, 246, 0.58) 100%),
    linear-gradient(180deg, rgba(250, 249, 246, 0.26) 0%, rgba(250, 249, 246, 0.9) 100%),
    url("assets/nyc-spatial-intelligence-hero.png") center / cover no-repeat;
  opacity: 0.88;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: clamp(28px, 5vw, 84px);
  align-items: center;
  max-width: 1180px;
  min-height: 72vh;
  margin: 0 auto;
  padding: 120px clamp(20px, 4vw, 56px) 68px;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow,
.section-kicker,
.venue {
  margin: 0 0 14px;
  color: var(--teal-dark);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

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

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 520;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 24px;
  font-size: clamp(2.65rem, 5.2vw, 4.8rem);
  line-height: 1.05;
}

h2 {
  font-size: clamp(1.85rem, 3vw, 3.15rem);
  line-height: 1.1;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.06rem;
  line-height: 1.28;
}

.lead {
  max-width: 650px;
  margin-bottom: 34px;
  color: #3c3933;
  font-size: clamp(1.06rem, 1.6vw, 1.22rem);
  line-height: 1.58;
}

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

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 19px;
  border: 1px solid var(--ink);
  font-size: 0.94rem;
  font-weight: 650;
}

.button.primary {
  background: var(--ink);
  color: var(--white);
}

.button.secondary {
  background: transparent;
}

.profile-panel {
  display: grid;
  gap: 18px;
  align-content: start;
  padding: 0;
  background: transparent;
  border: 0;
}

.avatar-photo {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: center bottom;
  background: var(--paper-soft);
  border: 1px solid rgba(27, 27, 24, 0.18);
}

.profile-name {
  margin-bottom: 2px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.36rem;
}

.profile-role,
.profile-meta {
  margin-bottom: 4px;
  color: var(--muted);
}

.profile-meta a {
  color: var(--teal-dark);
  font-weight: 650;
}

.profile-meta a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 88px clamp(20px, 4vw, 56px);
}

.intro,
.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.72fr);
  gap: clamp(28px, 5vw, 84px);
  align-items: end;
}

.intro p:last-child,
.contact-links {
  color: var(--muted);
  font-size: 1.02rem;
}

.section-heading {
  margin-bottom: 34px;
}

.contribution-note {
  max-width: 260px;
  color: var(--muted);
  font-size: 0.92rem;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.research-item {
  min-height: 270px;
  padding: 24px;
  background: transparent;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.research-item span {
  display: block;
  margin-bottom: 44px;
  color: var(--brass);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.05rem;
}

.research-item p,
.publication-list p,
.award p {
  color: var(--muted);
}

.education-section {
  border-top: 1px solid var(--line);
}

.education-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.education-item {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.school-mark {
  display: flex;
  width: 78px;
  height: 64px;
  align-items: center;
  justify-content: center;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 8px;
}

.school-mark img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.education-item h3 {
  margin-bottom: 4px;
  font-size: 1.22rem;
}

.education-item p {
  margin-bottom: 4px;
  color: var(--ink);
}

.education-item span {
  color: var(--muted);
  font-size: 0.95rem;
}


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

.publications-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.publications-heading h2 {
  margin-bottom: 0;
}

.publications-heading .contribution-note {
  margin-bottom: 8px;
  text-align: right;
}

.publication-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.publication-item {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.publication-list h3 {
  font-size: clamp(1.16rem, 1.5vw, 1.32rem);
  line-height: 1.3;
}

.publication-item p {
  font-size: 0.96rem;
}

.pub-image-slot {
  display: flex;
  width: 100%;
  aspect-ratio: 16 / 10;
  align-items: center;
  justify-content: center;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color 160ms ease, transform 160ms ease;
}

.pub-image-slot:hover {
  border-color: rgba(36, 95, 90, 0.45);
  transform: translateY(-1px);
}

.pub-image-slot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--white);
}

.paper-link {
  display: inline-flex;
  margin-top: 4px;
  color: var(--teal-dark);
  font-size: 0.88rem;
  font-weight: 700;
}

.paper-link::after {
  content: "↗";
  margin-left: 6px;
}

.awards-section {
  border-top: 1px solid var(--line);
}

.awards-list {
  display: grid;
  gap: 0;
  background: var(--white);
  border-top: 1px solid var(--line);
}

.award {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 28px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.award span {
  color: var(--teal-dark);
  font-weight: 720;
}

.award p {
  margin-bottom: 0;
}

.contact {
  margin-bottom: 56px;
  background: var(--ink);
  color: var(--white);
}

.contact .section-kicker,
.contact h2,
.contact-links a {
  color: var(--white);
}

.contact-links {
  display: grid;
  gap: 12px;
}

.contact-links a {
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 253, 248, 0.28);
}

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

  nav {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .hero-inner,
  .intro,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    align-items: start;
    padding-top: 128px;
  }

  .profile-panel {
    max-width: 310px;
  }

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

  .research-item {
    min-height: 240px;
  }

  .research-item span {
    margin-bottom: 40px;
  }


  .publications-heading {
    align-items: start;
  }

  .publication-item {
    grid-template-columns: 240px minmax(0, 1fr);
  }
}

@media (max-width: 560px) {
  .site-header {
    display: grid;
  }

  nav {
    justify-content: flex-start;
    font-size: 0.86rem;
  }

  h1 {
    font-size: 2.42rem;
    line-height: 1.08;
  }

  .section {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .award {
    grid-template-columns: 1fr;
    gap: 4px;
  }

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

  .publications-heading {
    display: grid;
    gap: 10px;
  }

  .publications-heading .contribution-note {
    text-align: left;
  }

  .education-item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 18px;
  }

  .school-mark {
    width: 56px;
    height: 50px;
    padding: 6px;
  }

  .pub-image-slot {
    max-width: none;
  }
}