:root {
  --bg: #141414;
  --surface: #2a2a2a;
  --surface-strong: #202020;
  --text: #f7f7f7;
  --muted: #b9b9b9;
  --subtle: #737373;
  --accent: #80e3ff;
  --accent-soft: rgba(128, 227, 255, 0.12);
  --border: rgba(255, 255, 255, 0.13);
  --content: 980px;
  --reading: 760px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

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

button,
input,
textarea {
  font: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  transform: translateY(-160%);
  border-radius: 3px;
  background: var(--accent);
  color: #0d0d0d;
  font-weight: 700;
  text-decoration: none;
}

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

.site-header {
  border-bottom: 1px solid transparent;
  background: var(--bg);
}

.header-inner {
  width: min(calc(100% - 40px), var(--content));
  margin: 0 auto;
  padding: 54px 0 58px;
}

.header-top {
  display: grid;
  grid-template-columns: 350px minmax(0, 1fr) auto;
  align-items: start;
  gap: 24px;
}

.identity {
  text-decoration: none;
}

.identity-name {
  margin: 0 0 5px;
  color: var(--accent);
  font-size: 1.875rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.identity-copy {
  margin: 0;
  color: var(--text);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.07;
}

.site-nav {
  align-self: center;
  padding-top: 18px;
}

.nav-list,
.social-list {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list {
  justify-content: center;
  gap: 18px;
}

.nav-link {
  position: relative;
  color: var(--subtle);
  font-size: 0.84rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms ease;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link[aria-current="page"] {
  color: var(--accent);
}

.nav-link::after {
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 1px;
  transform: scaleX(0);
  background: var(--accent);
  content: "";
  transition: transform 160ms ease;
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.social-list {
  gap: 10px;
  padding-top: 13px;
}

.social-link {
  display: grid;
  width: 39px;
  height: 39px;
  place-items: center;
  overflow: hidden;
  border-radius: 2px;
  background: #3d82b8;
  color: white;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, filter 160ms ease;
}

.social-link:hover,
.social-link:focus-visible {
  transform: translateY(-2px);
  filter: brightness(1.15);
}

.social-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mobile-nav {
  display: none;
}

.mobile-social {
  display: none;
}

main {
  min-height: 48vh;
}

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

.reading-width {
  width: min(100%, var(--reading));
  margin-right: auto;
  margin-left: auto;
}

.page-hero {
  position: relative;
  min-height: 248px;
  overflow: hidden;
  background: var(--surface-strong);
}

.page-hero--image {
  min-height: 352px;
}

.page-hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
}

.page-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20, 20, 20, 0.08), rgba(20, 20, 20, 0.25));
}

.page-hero__title-wrap {
  position: absolute;
  right: 50%;
  bottom: 26px;
  width: min(630px, calc(100% - 56px));
  padding: 19px 28px;
  transform: translateX(50%);
  background: rgba(20, 20, 20, 0.96);
  text-align: center;
}

.page-hero:not(.page-hero--image) .page-hero__title-wrap {
  bottom: 50%;
  transform: translate(50%, 50%);
}

.page-title {
  margin: 0;
  color: var(--accent);
  font-size: clamp(2.6rem, 6vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.06;
}

.page-kicker {
  margin: 8px 0 0;
  color: var(--text);
  font-size: 1rem;
}

.caption {
  margin: 9px 18px 0;
  color: var(--text);
  font-size: 0.8rem;
}

.section {
  padding: 64px 0;
  background: var(--surface);
}

.section + .section {
  padding-top: 10px;
}

.section--dark {
  background: var(--bg);
}

.section-heading {
  margin: 0 0 32px;
  color: var(--text);
  font-size: clamp(1.8rem, 4vw, 2.375rem);
  font-weight: 400;
  line-height: 1.2;
  text-align: center;
}

.section-heading--accent,
.accent-heading {
  color: var(--accent);
  font-weight: 800;
}

.prose {
  color: var(--text);
}

.prose p {
  margin: 0 0 1.25em;
}

.prose a,
.text-link {
  color: var(--accent);
  text-underline-offset: 3px;
}

.intro-copy {
  max-width: 600px;
  margin: 0 auto;
  font-size: 1rem;
  text-align: justify;
}

.research-publications-heading {
  display: grid;
  justify-items: center;
  gap: 8px;
  margin-top: 58px;
  text-align: center;
}

.research-publications-heading .section-heading {
  margin-bottom: 0;
}

.research-scholar-link {
  color: var(--text);
  font-size: 0.95rem;
  text-underline-offset: 4px;
}

.research-scholar-link:hover,
.research-scholar-link:focus-visible {
  color: var(--accent);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 38px 44px;
  padding-top: 30px;
}

.project-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  border-top: 1px solid var(--border);
  background: transparent;
}

.project-card__image-link {
  display: block;
  aspect-ratio: 358 / 181;
  overflow: hidden;
  background: var(--surface-strong);
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 240ms ease, filter 240ms ease;
}

.project-card__placeholder {
  display: flex;
  width: 100%;
  height: 100%;
  flex-direction: column;
  justify-content: flex-end;
  gap: 8px;
  padding: 26px;
  background:
    linear-gradient(135deg, rgb(106 225 255 / 14%), transparent 54%),
    var(--surface-strong);
  color: var(--accent);
}

.project-card__placeholder-year {
  font-size: clamp(2.7rem, 8vw, 4.6rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.9;
}

.project-card__placeholder-venue {
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.project-card:hover .project-card__image {
  transform: scale(1.02);
  filter: brightness(1.08);
}

.project-card__body {
  padding: 19px 2px 4px;
}

.project-card__title {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.28;
}

.project-card__title a {
  text-decoration: none;
}

.project-card__title a:hover,
.project-card__title a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.project-card__meta,
.project-card__tags,
.project-card__people {
  margin: 0 0 7px;
  color: var(--text);
  font-size: 0.94rem;
}

.project-card__tags {
  color: var(--muted);
}

.project-card__people {
  margin-top: 16px;
  font-size: 0.88rem;
  line-height: 1.5;
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 265px;
  gap: 56px;
  align-items: start;
}

.portrait-stack {
  display: grid;
  gap: 20px;
}

.portrait-stack img {
  width: 100%;
  background: var(--surface-strong);
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 10px;
  padding: 11px 18px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease;
}

.button-link:hover,
.button-link:focus-visible {
  background: var(--accent);
  color: #101010;
}

.resume-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 54px 64px;
}

.resume-section h2 {
  margin: 0 0 22px;
  color: var(--accent);
  font-size: 1.5rem;
  line-height: 1.2;
}

.resume-list {
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.resume-item strong,
.resume-item span {
  display: block;
}

.resume-item strong {
  margin-bottom: 4px;
  color: var(--text);
}

.resume-item span {
  color: var(--muted);
}

.book-list,
.venture-list {
  display: grid;
  gap: 72px;
}

.book-card,
.venture-card {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 46px;
  align-items: start;
}

.book-card:nth-child(even) {
  grid-template-columns: minmax(0, 1fr) 300px;
}

.book-card:nth-child(even) .book-card__media {
  grid-column: 2;
  grid-row: 1;
}

.book-card__media img,
.venture-card__media img,
.venture-card__media video {
  width: 100%;
  max-height: 440px;
  object-fit: contain;
  background: var(--surface-strong);
}

.book-card h2,
.venture-card h2 {
  margin: 0 0 20px;
  color: var(--accent);
  font-size: clamp(1.8rem, 4vw, 2.375rem);
  line-height: 1.15;
}

.book-card__meta {
  margin: -8px 0 22px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.teaching-media {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.teaching-media img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  background: var(--surface-strong);
}

.timeline {
  position: relative;
  display: grid;
  gap: 36px;
  margin: 36px 0 0;
  padding: 0 0 0 30px;
  list-style: none;
}

.timeline::before {
  position: absolute;
  top: 9px;
  bottom: 9px;
  left: 5px;
  width: 1px;
  background: var(--border);
  content: "";
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  position: absolute;
  top: 7px;
  left: -30px;
  width: 11px;
  height: 11px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--surface);
  content: "";
}

.timeline-item h3 {
  margin: 0 0 7px;
  color: var(--accent);
  font-size: 1.25rem;
}

.timeline-item p {
  margin: 0;
}

.venture-card {
  grid-template-columns: minmax(0, 1fr) 330px;
  padding-bottom: 52px;
  border-bottom: 1px solid var(--border);
}

.venture-card:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.venture-card__media {
  order: 2;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 72px;
  align-items: start;
}

.contact-details h1 {
  margin: 0 0 28px;
  color: var(--accent);
  font-size: 1.5rem;
}

.contact-details p {
  margin: 0 0 24px;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--text);
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 1rem;
}

.contact-form input {
  min-height: 48px;
  padding: 10px 2px;
}

.contact-form textarea {
  min-height: 132px;
  padding: 12px 2px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-bottom-color: var(--accent);
  box-shadow: 0 1px 0 var(--accent);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #c9c9c9;
  opacity: 1;
}

.field--wide,
.contact-form textarea,
.contact-form__actions {
  grid-column: 1 / -1;
}

.contact-form__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
}

.contact-form button {
  min-width: 126px;
  min-height: 44px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #101010;
  cursor: pointer;
  font-weight: 800;
}

.contact-form button:hover,
.contact-form button:focus-visible {
  background: transparent;
  color: var(--accent);
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.blog-index {
  padding-top: 42px;
}

.blog-list {
  display: grid;
  gap: 0;
}

.blog-card {
  padding: 34px 0 38px;
  border-bottom: 1px solid var(--border);
}

.blog-card:first-child {
  padding-top: 0;
}

.blog-card h2 {
  max-width: 680px;
  margin: 11px 0 12px;
  color: var(--accent);
  font-size: clamp(1.65rem, 4vw, 2.25rem);
  line-height: 1.15;
}

.blog-card h2 a {
  text-decoration: none;
}

.blog-card h2 a:hover,
.blog-card h2 a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.blog-card > p {
  max-width: 650px;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 1.02rem;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 0.83rem;
  font-weight: 600;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  padding: 5px 9px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1;
}

.blog-card__link,
.feed-link a,
.article-back {
  color: var(--accent);
  font-weight: 700;
  text-underline-offset: 3px;
}

.blog-card__link {
  display: inline-block;
  margin-top: 20px;
  text-decoration: none;
}

.blog-card__link:hover,
.blog-card__link:focus-visible {
  text-decoration: underline;
}

.feed-link {
  margin: 34px 0 0;
}

.article-header {
  padding: 56px 0 52px;
  border-top: 1px solid var(--border);
  background:
    radial-gradient(circle at 82% 18%, rgba(128, 227, 255, 0.1), transparent 32%),
    var(--bg);
}

.article-back {
  display: inline-block;
  margin-bottom: 44px;
  font-size: 0.9rem;
  text-decoration: none;
}

.article-back:hover,
.article-back:focus-visible {
  text-decoration: underline;
}

.article-header h1 {
  max-width: 740px;
  margin: 15px 0 18px;
  color: var(--accent);
  font-size: clamp(2.4rem, 7vw, 4.25rem);
  letter-spacing: -0.035em;
  line-height: 1.03;
}

.article-dek {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.4vw, 1.25rem);
  line-height: 1.55;
}

.article-section {
  padding-top: 56px;
  padding-bottom: 74px;
}

.article-prose {
  color: #ececec;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.05rem, 2.2vw, 1.17rem);
  line-height: 1.78;
}

.article-prose > :first-child {
  margin-top: 0;
}

.article-prose p,
.article-prose ul,
.article-prose ol,
.article-prose blockquote {
  margin-top: 0;
  margin-bottom: 1.45em;
}

.article-prose h2,
.article-prose h3 {
  color: var(--text);
  font-family: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.article-prose h2 {
  margin: 2.25em 0 0.75em;
  font-size: clamp(1.65rem, 4vw, 2.15rem);
}

.article-prose h3 {
  margin: 1.9em 0 0.65em;
  font-size: 1.35rem;
}

.article-prose a {
  color: var(--accent);
  text-underline-offset: 3px;
}

.article-prose li + li {
  margin-top: 0.45em;
}

.article-prose blockquote {
  margin-right: 0;
  margin-left: 0;
  padding: 2px 0 2px 24px;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}

.article-prose code {
  padding: 0.12em 0.32em;
  border-radius: 3px;
  background: var(--surface-strong);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.9em;
}

.article-prose pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 18px;
  background: var(--surface-strong);
}

.article-prose pre code {
  padding: 0;
}

.site-footer {
  background: var(--bg);
}

.footer-inner {
  display: flex;
  width: min(calc(100% - 40px), var(--content));
  min-height: 128px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-top: 1px solid var(--border);
}

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

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social .social-link {
  width: 24px;
  height: 24px;
}

@media (max-width: 1050px) {
  .header-top {
    grid-template-columns: 310px minmax(0, 1fr);
  }

  .site-nav {
    justify-self: end;
  }

  .nav-list {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 12px 24px;
  }

  .header-top > .social-list {
    grid-column: 2;
    justify-self: end;
    padding-top: 0;
  }
}

@media (max-width: 760px) {
  .header-inner {
    width: min(calc(100% - 32px), var(--content));
    padding: 30px 0 24px;
  }

  .header-top {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
  }

  .identity-name {
    font-size: 1.55rem;
  }

  .identity-copy {
    font-size: 0.9rem;
    line-height: 1.15;
  }

  .site-nav,
  .header-top > .social-list {
    display: none;
  }

  .mobile-nav {
    display: block;
    margin-top: 22px;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .mobile-nav .nav-list {
    width: max-content;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 22px;
    padding-bottom: 10px;
  }

  .mobile-social {
    display: flex;
    gap: 8px;
  }

  .mobile-social .social-link {
    width: 32px;
    height: 32px;
  }

  .content-width {
    width: min(calc(100% - 32px), var(--content));
  }

  .page-hero--image {
    min-height: 260px;
  }

  .page-hero__title-wrap {
    bottom: 18px;
    width: calc(100% - 32px);
    padding: 16px;
  }

  .page-title {
    font-size: clamp(2.25rem, 12vw, 3rem);
  }

  .caption {
    margin-right: 16px;
    margin-left: 16px;
  }

  .section {
    padding: 48px 0;
  }

  .article-header {
    padding: 38px 0 42px;
  }

  .article-back {
    margin-bottom: 32px;
  }

  .article-section {
    padding-top: 42px;
    padding-bottom: 56px;
  }

  .article-prose {
    line-height: 1.7;
  }

  .intro-copy {
    text-align: left;
  }

  .project-grid,
  .resume-grid,
  .teaching-media,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .project-grid {
    gap: 34px;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

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

  .book-card,
  .book-card:nth-child(even),
  .venture-card {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .book-card:nth-child(even) .book-card__media,
  .venture-card__media {
    grid-column: auto;
    grid-row: auto;
    order: -1;
  }

  .book-card__media img,
  .venture-card__media img {
    max-height: 360px;
  }

  .teaching-media img {
    height: auto;
  }

  .contact-grid {
    gap: 46px;
  }

  .footer-inner {
    width: min(calc(100% - 32px), var(--content));
    min-height: 106px;
  }
}

@media (max-width: 480px) {
  .portrait-stack {
    grid-template-columns: 1fr;
  }

  .contact-form {
    grid-template-columns: 1fr;
  }

  .contact-form > * {
    grid-column: 1;
  }

  .contact-form__actions {
    align-items: flex-start;
    flex-direction: column-reverse;
  }

  .contact-form button {
    width: 100%;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 28px 0;
  }
}

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

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