:root {
  color-scheme: light;
  --bg: #f3f5f7;
  --surface: #ffffff;
  --ink: #101318;
  --muted: #59616d;
  --line: #cbd2da;
  --line-dark: #89929f;
  --accent: #175cd3;
  --accent-strong: #0b3d91;
  --signal: #d7ff3f;
  --coral: #e4583e;
  --dark: #101318;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Aptos", "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  transform: translateY(-150%);
  border-radius: 4px;
  background: var(--surface);
  color: var(--ink);
  padding: 10px 14px;
  font-weight: 800;
}

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

.site-header {
  min-height: min(900px, 92vh);
  color: #ffffff;
  background:
    linear-gradient(90deg, rgba(5, 8, 14, 0.96) 0%, rgba(5, 8, 14, 0.8) 52%, rgba(5, 8, 14, 0.25) 100%),
    linear-gradient(180deg, rgba(5, 8, 14, 0.08) 0%, rgba(5, 8, 14, 0.68) 100%),
    url("/css/images/banner.jpg") center / cover no-repeat;
}

.nav,
.hero,
.proof-strip,
.section,
.footer {
  width: min(var(--max-width), calc(100% - 48px));
  margin-inline: auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 88px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  color: var(--signal);
  font-size: 12px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.74);
  transition: color 160ms ease;
}

.nav-links a:hover {
  color: var(--signal);
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  padding: 9px 12px;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
}

.hero {
  min-height: calc(min(900px, 92vh) - 168px);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(310px, 0.48fr);
  align-items: center;
  gap: 64px;
  padding: 54px 0 72px;
}

.hero-copy {
  max-width: 800px;
}

.hero-kicker,
.eyebrow,
.panel-label,
.project-type {
  margin: 0;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.82);
  text-transform: none;
}

.hero-kicker span {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 5px rgba(215, 255, 63, 0.14);
}

.hero h1 {
  margin: 26px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 108px;
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: 0;
}

.hero-role {
  max-width: 760px;
  margin: 26px 0 0;
  color: #ffffff;
  font-size: 36px;
  font-weight: 750;
  line-height: 1.17;
}

.hero-text {
  max-width: 690px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 18px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border-radius: 6px;
  padding: 0 18px;
  font-size: 14px;
  font-weight: 850;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

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

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

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: #ffffff;
}

.button.secondary:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.09);
}

.hero-panel {
  align-self: end;
  border-top: 2px solid var(--signal);
  background: rgba(8, 12, 19, 0.66);
  padding: 24px;
  backdrop-filter: blur(14px);
}

.panel-label {
  color: var(--signal);
}

.panel-title {
  margin: 10px 0 24px;
  font-size: 23px;
  font-weight: 850;
  line-height: 1.2;
}

.profile-facts {
  margin: 0;
}

.profile-facts > div {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding: 12px 0;
}

.profile-facts dt,
.profile-facts dd {
  margin: 0;
  font-size: 14px;
}

.profile-facts dt {
  color: rgba(255, 255, 255, 0.52);
}

.profile-facts dd {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 700;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.24);
}

.proof-strip > div {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 18px 22px;
}

.proof-strip > div + div {
  border-left: 1px solid rgba(255, 255, 255, 0.24);
}

.proof-strip strong {
  color: var(--signal);
  font-size: 25px;
}

.proof-strip span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

.section {
  position: relative;
  padding: 112px 0;
}

.section-index {
  position: absolute;
  top: 118px;
  left: 0;
  color: var(--coral);
  font-size: 14px;
  font-weight: 900;
}

.section-heading {
  max-width: 810px;
  margin-left: 82px;
}

.eyebrow {
  margin-bottom: 16px;
  color: var(--accent);
}

.section-heading h2,
.open-source-heading h2,
.contact-inner h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 54px;
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: 0;
}

.about-content {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.65fr);
  gap: 80px;
  margin: 64px 0 0 82px;
}

.about-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.about-copy .lead {
  margin-bottom: 22px;
  color: var(--ink);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.45;
}

.working-principles {
  border-top: 1px solid var(--line-dark);
}

.working-principles > div {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
}

.working-principles span {
  color: var(--coral);
  font-size: 12px;
  font-weight: 850;
}

.working-principles p {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.education-line {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin: 64px 0 0 82px;
}

.education-line > div {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 4px 18px;
  border-top: 3px solid var(--ink);
  padding-top: 16px;
}

.education-line span {
  grid-row: 1 / 3;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.education-line strong {
  font-size: 17px;
}

.education-line small {
  color: var(--muted);
  font-size: 14px;
}

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

.projects-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 60px;
  align-items: end;
  padding-bottom: 72px;
}

.projects-heading .section-heading {
  margin-left: 82px;
}

.section-intro {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.project-list {
  border-top: 1px solid var(--line-dark);
}

.project-case {
  display: grid;
  grid-template-columns: minmax(80px, 0.18fr) minmax(0, 1fr);
  background: var(--surface);
  border-bottom: 1px solid var(--line-dark);
}

.project-case:nth-child(even) {
  background: #edf1f5;
}

.project-number {
  display: flex;
  justify-content: flex-end;
  border-right: 1px solid var(--line);
  padding: 58px 34px;
  color: var(--coral);
  font-size: 14px;
  font-weight: 900;
}

.project-main {
  width: min(100%, 1040px);
  padding: 56px 56px 64px;
}

.project-header {
  display: flex;
  justify-content: space-between;
  gap: 28px;
}

.project-type {
  color: var(--accent);
}

.project-header h3,
.contribution h3 {
  margin: 8px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 50px;
  line-height: 1;
  letter-spacing: 0;
}

.project-links,
.contribution-links,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.project-links a,
.contribution-links a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  border: 1px solid var(--line-dark);
  border-radius: 6px;
  padding: 0 14px;
  color: var(--accent-strong);
  font-size: 14px;
  font-weight: 850;
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
}

.project-links a:hover,
.contribution-links a:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.private-label {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.project-summary {
  max-width: 940px;
  margin: 34px 0 0;
  color: var(--ink);
  font-size: 22px;
  font-weight: 650;
  line-height: 1.5;
}

.project-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-top: 42px;
}

.project-detail-grid > div {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
}

.project-detail-grid h4 {
  margin: 0;
  font-size: 15px;
}

.project-detail-grid p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.project-metrics {
  display: flex;
  flex-wrap: wrap;
  margin-top: 42px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.project-metrics > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 180px;
  padding: 18px 28px 18px 0;
}

.project-metrics > div + div {
  border-left: 1px solid var(--line);
  padding-left: 28px;
}

.project-metrics strong {
  color: var(--accent);
  font-size: 25px;
}

.project-metrics span {
  color: var(--muted);
  font-size: 13px;
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.tech-list li {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.64);
  padding: 6px 11px;
  color: #343b45;
  font-size: 12px;
  font-weight: 800;
}

.open-source {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 70px;
}

.open-source-heading h2 {
  font-size: 42px;
}

.contribution {
  display: grid;
  grid-template-columns: 0.55fr 1fr;
  gap: 34px;
  border-top: 3px solid var(--ink);
  padding-top: 24px;
}

.contribution h3 {
  font-size: 30px;
}

.contribution > p {
  margin: 0;
  color: var(--muted);
}

.contribution-links {
  grid-column: 2;
}

.capabilities-section {
  color: #ffffff;
  background: var(--dark);
}

.capabilities-section .section-index,
.capabilities-section .eyebrow {
  color: var(--signal);
}

.capability-list {
  margin: 64px 0 0 82px;
  border-top: 1px solid rgba(255, 255, 255, 0.35);
}

.capability-list > div {
  display: grid;
  grid-template-columns: minmax(220px, 0.45fr) minmax(0, 1fr);
  gap: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  padding: 24px 0;
}

.capability-list h3,
.capability-list p {
  margin: 0;
}

.capability-list h3 {
  font-size: 18px;
}

.capability-list p {
  color: rgba(255, 255, 255, 0.66);
}

.contact-section {
  background: var(--accent);
  color: #ffffff;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.8fr;
  gap: 44px 80px;
}

.contact-inner .eyebrow {
  color: var(--signal);
}

.contact-inner > p {
  align-self: end;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
}

.contact-links {
  grid-column: 1 / -1;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.32);
}

.contact-links a {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-width: 180px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 6px;
  padding: 13px 16px;
  font-weight: 850;
  transition: background 160ms ease, color 160ms ease;
}

.contact-links a:hover {
  background: var(--signal);
  color: var(--ink);
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 44px;
  color: var(--muted);
  font-size: 14px;
}

.footer p {
  margin: 0;
}

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

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 500ms ease, transform 500ms ease;
}

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

@media (max-width: 960px) {
  .site-header {
    min-height: auto;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 42px;
    padding: 72px 0 64px;
  }

  .hero h1 {
    font-size: 78px;
  }

  .hero-role {
    font-size: 31px;
  }

  .hero-panel {
    max-width: 560px;
    align-self: auto;
  }

  .projects-heading,
  .open-source,
  .contact-inner {
    grid-template-columns: 1fr;
  }

  .project-case {
    grid-template-columns: 70px minmax(0, 1fr);
  }

  .project-number {
    padding-inline: 22px;
  }

  .project-main {
    padding-inline: 36px;
  }

  .project-detail-grid {
    grid-template-columns: 1fr;
  }

  .contribution-links,
  .contact-links {
    grid-column: auto;
  }
}

@media (max-width: 720px) {
  .nav,
  .hero,
  .proof-strip,
  .section,
  .footer {
    width: min(var(--max-width), calc(100% - 28px));
  }

  .nav {
    position: relative;
    min-height: 74px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    z-index: 8;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background: rgba(10, 13, 19, 0.98);
    padding: 8px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 12px;
  }

  .hero {
    padding-top: 54px;
  }

  .hero h1 {
    font-size: 58px;
  }

  .hero-role {
    font-size: 25px;
  }

  .hero-text {
    font-size: 16px;
  }

  .proof-strip {
    grid-template-columns: 1fr;
  }

  .proof-strip > div {
    padding: 12px 0;
  }

  .proof-strip > div + div {
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    border-left: 0;
  }

  .section {
    padding: 76px 0;
  }

  .section-index {
    position: static;
    margin-bottom: 18px;
  }

  .section-heading,
  .projects-heading .section-heading,
  .about-content,
  .education-line,
  .capability-list {
    margin-left: 0;
  }

  .section-heading h2,
  .contact-inner h2 {
    font-size: 40px;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 44px;
    margin-top: 44px;
  }

  .about-copy .lead {
    font-size: 21px;
  }

  .education-line {
    grid-template-columns: 1fr;
    margin-top: 48px;
  }

  .projects-heading {
    gap: 28px;
    padding-bottom: 52px;
  }

  .project-case {
    display: block;
  }

  .project-number {
    display: block;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 18px 20px;
  }

  .project-main {
    padding: 36px 20px 50px;
  }

  .project-header {
    display: grid;
  }

  .project-header h3 {
    font-size: 42px;
  }

  .project-summary {
    font-size: 19px;
  }

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

  .project-metrics > div,
  .project-metrics > div + div {
    min-width: 0;
    border: 0;
    padding: 14px 12px 14px 0;
  }

  .project-metrics > div:nth-child(even) {
    border-left: 1px solid var(--line);
    padding-left: 16px;
  }

  .open-source-heading h2 {
    font-size: 36px;
  }

  .contribution,
  .capability-list > div {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .contact-links {
    display: grid;
  }

  .contact-links a {
    min-width: 0;
  }

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

@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;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}