:root {
  --paper: #f3ead8;
  --paper-deep: #e8dcc4;
  --ink: #1c1812;
  --ink-soft: #4a4338;
  --ink-faint: #7a7164;
  --rule: rgba(90, 70, 40, 0.18);
  --margin: #b85a48;
  --accent: #2f4f6b;
  --accent-soft: #3d6484;
  --stain: rgba(140, 100, 50, 0.06);
  --shadow: rgba(40, 28, 12, 0.12);
  --max: 1100px;
  --gutter: 1.35rem;
  --font-display: "Cormorant Garamond", "Times New Roman", serif;
  --font-body: "Source Serif 4", "Palatino Linotype", Palatino, serif;
  --font-hand: "Caveat", cursive;
  --font-meta: "IBM Plex Mono", ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.7;
  background:
    radial-gradient(ellipse at 12% 8%, rgba(255, 250, 235, 0.55), transparent 42%),
    radial-gradient(ellipse at 88% 18%, rgba(180, 140, 80, 0.08), transparent 40%),
    linear-gradient(180deg, #efe4cb 0%, var(--paper) 28%, #efe6d2 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.45;
  background-image:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
  z-index: 0;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

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

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 50;
  background: var(--paper);
  padding: 0.5rem 0.75rem;
}

.page {
  position: relative;
  z-index: 1;
  width: calc(100% - 1rem);
  margin: 0.75rem auto 2rem;
}

.notebook {
  position: relative;
  background:
    repeating-linear-gradient(
      transparent,
      transparent calc(1.85rem - 1px),
      var(--rule) calc(1.85rem - 1px),
      var(--rule) 1.85rem
    ),
    linear-gradient(180deg, #f7efdc, var(--paper));
  border: 1px solid rgba(70, 50, 25, 0.18);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.55) inset,
    0 18px 50px var(--shadow),
    0 2px 0 rgba(90, 60, 20, 0.08);
  padding: 1.2rem 1.5rem 2rem 1.5rem;
  border-radius: 2px 10px 10px 2px;
}

.notebook::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 12%, var(--stain), transparent 24%),
    radial-gradient(circle at 82% 70%, rgba(90, 60, 30, 0.05), transparent 28%);
}

.homepage-grid {
  display: block;
}

.homepage-grid > * {
  min-width: 0;
}

@media (min-width: 980px) {
  .homepage-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.35fr;
    grid-template-areas:
      "hero about"
      "experience projects"
      "skills skills"
      "publications publications"
      "contact contact"
      "footer footer";
    column-gap: 1.4rem;
  }

  #top { grid-area: hero; }
  #about { grid-area: about; }
  #experience {
    grid-area: experience;
    border-top: 2px solid rgba(70, 50, 25, 0.22);
    border-right: 2px solid rgba(70, 50, 25, 0.28);
    padding-top: 0.5rem;
    padding-right: 1.25rem;
    margin-top: 0.25rem;
  }

  #projects {
    grid-area: projects;
    border-top: 2px solid rgba(70, 50, 25, 0.22);
    padding-top: 0.5rem;
    padding-left: 0.25rem;
    margin-top: 0.25rem;
  }
  #skills { grid-area: skills; }
  #publications { grid-area: publications; }
  #contact { grid-area: contact; }
  .site-footer { grid-area: footer; }
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  align-items: center;
  justify-content: space-between;
  margin: 0 0 1.5rem;
  padding: 0.65rem 0.85rem;
  background: rgba(243, 234, 216, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(70, 50, 25, 0.14);
  border-radius: 4px;
}

.brand-mark {
  font-family: var(--font-hand);
  font-size: 1.55rem;
  color: var(--ink);
  text-decoration: none;
  line-height: 1;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-meta);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.nav-links a:hover {
  color: var(--ink);
  border-bottom-color: var(--margin);
}

.meta {
  font-family: var(--font-meta);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.hand {
  font-family: var(--font-hand);
}

.hero {
  padding: 1.2rem 0 1rem;
}

.hero-facts {
  margin-top: 1.2rem;
}

.hero-kicker {
  margin: 0 0 0.35rem;
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.8rem, 8vw, 4.4rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.hero-title-note {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-hand);
  font-size: clamp(1.25rem, 3.2vw, 1.85rem);
  line-height: 1.2;
  color: var(--accent);
  font-weight: 500;
}

.hero-lead {
  max-width: 42rem;
  margin: 1.1rem 0 1.4rem;
  color: var(--ink-soft);
  font-size: 1.12rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.95rem;
  border: 1.5px solid var(--ink);
  background: transparent;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-meta);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.btn:hover {
  background: var(--ink);
  color: var(--paper);
}

.btn-ink {
  background: var(--accent);
  border-color: var(--accent);
  color: #f7f1e4;
}

.btn-ink:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

section {
  padding: 1.6rem 0 0.6rem;
  scroll-margin-top: 4.5rem;
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(70, 50, 25, 0.2);
  padding-bottom: 0.35rem;
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.1;
}

.section-head .meta {
  margin-left: auto;
}

.about-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 760px) {
  .about-grid {
    grid-template-columns: 1.05fr 1fr;
    align-items: start;
  }
}

.portrait-frame {
  position: relative;
  width: 100%;
  max-width: 28rem;
  margin-left: auto;
  border: 1px solid rgba(70, 50, 25, 0.25);
  padding: 0.45rem;
  background: rgba(255, 252, 245, 0.55);
  box-shadow: 0 8px 24px var(--shadow);
  transform: rotate(0.6deg);
}

.portrait-top {
  margin: 0 0 1rem;
  max-width: none;
  transform: rotate(0.4deg);
}

.about-prose {
  overflow: hidden;
}

.portrait-inline {
  float: right;
  width: min(55%, 28.5rem);
  margin: 0.15rem 0 0.85rem 1.1rem;
  padding: 0.35rem;
  transform: rotate(0.5deg);
  box-shadow: 0 4px 14px var(--shadow);
}

.portrait-inline img {
  max-height: 25.5rem;
  aspect-ratio: 11 / 9;
}

#about p {
  margin: 0 0 0.75rem;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.portrait-frame img {
  width: 100%;
  height: auto;
  max-height: min(42vh, 320px);
  aspect-ratio: 11 / 9;
  object-fit: cover;
  object-position: center 28%;
  filter: sepia(0.1) contrast(1.02);
}

.portrait-caption {
  margin: 0.45rem 0 0;
  font-family: var(--font-hand);
  font-size: 1.2rem;
  color: var(--ink-soft);
  text-align: center;
}

.facts {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.facts li {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.6rem;
  padding: 0.35rem 0;
  border-bottom: 1px dashed rgba(70, 50, 25, 0.18);
}

.facts .label {
  font-family: var(--font-meta);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-top: 0.25rem;
}

.edu-rows {
  display: grid;
  gap: 0.5rem;
}

.edu-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.edu-logo {
  display: block;
  height: 1.8rem;
  width: auto;
  max-width: 1.8rem;
  object-fit: contain;
  flex: 0 0 auto;
}

.edu-logo.wide {
  height: 1.6rem;
  max-width: 4.26rem;
}

.edu-logo.seal {
  height: 1.95rem;
  max-width: 1.95rem;
}

.fact-edu .label {
  padding-top: 0.35rem;
}

.entry {
  position: relative;
  padding: 1.1rem 0 1.2rem;
  border-bottom: 2px solid rgba(70, 50, 25, 0.24);
}

.entry:last-child {
  border-bottom: 0;
  padding-bottom: 0.4rem;
}

.entry-top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.85rem;
  align-items: baseline;
  margin-bottom: 0.35rem;
}

.entry h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.15;
}

.entry .org {
  color: var(--ink-soft);
}

.entry .when {
  margin-left: auto;
  font-family: var(--font-meta);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.entry .role {
  margin: 0 0 0.55rem;
  font-family: var(--font-hand);
  font-size: 1.2rem;
  color: var(--accent);
}

.entry ul {
  margin: 0.35rem 0 0.7rem;
  padding-left: 1.1rem;
}

.entry li {
  margin: 0.25rem 0;
  color: var(--ink-soft);
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.9rem;
  font-family: var(--font-meta);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.links .soon {
  color: var(--ink-faint);
}

.affiliates {
  margin-top: 0.85rem;
  padding-top: 0.7rem;
  border-top: 1px dashed rgba(70, 50, 25, 0.22);
}

.affiliates-label {
  margin: 0 0 0.65rem;
  font-family: var(--font-meta);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.logo-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.15rem;
}

.logo-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  max-width: 100%;
}

.logo-chip img {
  display: block;
  height: 1.35rem;
  width: auto;
  max-width: 3.6rem;
  object-fit: contain;
  flex: 0 0 auto;
  filter: none;
  opacity: 1;
}

.logo-chip img.tall {
  height: 1.55rem;
}

.logo-chip img.wide {
  height: 1.2rem;
  max-width: 5.5rem;
}

.logo-chip img.mark {
  height: 1.35rem;
  max-width: 4.5rem;
}

.logo-chip img.seal {
  height: 1.7rem;
  max-width: 5.5rem;
}

.logo-chip img.nvidia {
  height: 1.7rem;
  max-width: 2.6rem;
}

.logo-chip img.crest {
  height: 1.55rem;
  max-width: 1.8rem;
}

.logo-chip img.icon {
  height: 1.35rem;
  width: 1.35rem;
  max-width: 1.35rem;
  object-fit: contain;
}

.logo-chip img.sm {
  height: 1.15rem;
  max-width: 3.2rem;
}

.logo-chip span {
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.2;
  color: var(--ink-soft);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .logo-chip span {
    white-space: normal;
    max-width: 9.5rem;
  }
}

.project-grid {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}

.project {
  background: rgba(255, 252, 245, 0.42);
  border: 1px solid rgba(70, 50, 25, 0.16);
  padding: 0.7rem;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.project:hover {
  transform: translateY(-3px) rotate(-0.2deg);
  box-shadow: 0 12px 28px var(--shadow);
}

.project.featured {
  grid-column: 1;
}

@media (min-width: 720px) {
  .project.featured {
    display: block;
  }
}

.project-media {
  overflow: hidden;
  border: 1px solid rgba(70, 50, 25, 0.18);
  background: #ddd2bc;
  min-height: 12rem;
}

.project-media-coming-soon {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 12rem;
  background:
    repeating-linear-gradient(
      -45deg,
      rgba(255, 252, 245, 0.35),
      rgba(255, 252, 245, 0.35) 10px,
      rgba(221, 210, 188, 0.55) 10px,
      rgba(221, 210, 188, 0.55) 20px
    );
}

.coming-soon-label {
  font-family: var(--font-hand);
  font-size: 1.65rem;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

.project-media img,
.project-media video {
  width: 100%;
  height: auto;
  min-height: 12rem;
  max-height: 22rem;
  object-fit: contain;
  background: #ddd2bc;
  filter: sepia(0.08) contrast(1.03);
}

.project-media video {
  display: block;
}

.project-media iframe {
  width: 100%;
  height: 100%;
  min-height: 11rem;
  border: 0;
}

.project-demo {
  grid-column: 1 / -1;
}

@media (min-width: 720px) {
  .project-demo {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.9rem;
    align-items: stretch;
  }
}

.project-media-wide {
  min-height: 13rem;
}

.project-media-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
  min-height: 14rem;
}

.project-media-pair img,
.project-media-pair video {
  width: 100%;
  height: auto;
  min-height: 14rem;
  max-height: 22rem;
  object-fit: contain;
  background: #ddd2bc;
}

.project-body {
  padding: 0.45rem 0.25rem 0.2rem;
}

.project-body h3 {
  margin: 0 0 0.25rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.15;
}

.project-body p {
  margin: 0.35rem 0 0.7rem;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.55rem;
}

.tag {
  font-family: var(--font-meta);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border-bottom: 1px solid rgba(70, 50, 25, 0.25);
  padding-bottom: 0.05rem;
}

.skills-wrap {
  display: grid;
  gap: 0.85rem;
}

@media (min-width: 700px) {
  .skills-wrap {
    grid-template-columns: repeat(2, 1fr);
  }
}

.skill-block {
  border-top: 1px solid rgba(70, 50, 25, 0.18);
  padding-top: 0.55rem;
}

.skill-block h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-meta);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
}

.skill-block p {
  margin: 0;
  color: var(--ink-soft);
}

.pub-list,
.award-list {
  margin: 0;
  padding-left: 1.1rem;
}

.pub-list li,
.award-list li {
  margin: 0.45rem 0;
  color: var(--ink-soft);
}

.contact-box {
  display: grid;
  gap: 0.85rem;
  padding: 1rem 0 0.4rem;
}

.contact-box p {
  margin: 0;
  max-width: 36rem;
  color: var(--ink-soft);
}

.site-footer {
  margin-top: 2rem;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(70, 50, 25, 0.18);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  justify-content: space-between;
  font-family: var(--font-meta);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@media (max-width: 640px) {
  .page {
    width: calc(100% - 0.5rem);
    margin-top: 0.5rem;
  }

  .notebook {
    padding: 0.75rem 0.75rem 1.5rem 0.75rem;
  }

  .facts li {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .entry .when {
    margin-left: 0;
    width: 100%;
  }
}

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

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

  .project:hover {
    transform: none;
  }
}