:root {
  color-scheme: light;
  --paper: #f2f0e9;
  --white: #fcfcf8;
  --ink: #101416;
  --graphite: #293136;
  --steel: #657077;
  --muted: #8a928f;
  --rule: #d5d1c7;
  --shadow: 0 18px 60px rgba(16, 20, 22, 0.12);
  --max: 1180px;
  --radius: 8px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.55;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, currentColor 45%, transparent);
  text-underline-offset: 0.22em;
}

a:hover {
  text-decoration-color: currentColor;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--steel);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 100;
  transform: translateY(-140%);
  background: var(--white);
  color: var(--ink);
  padding: 10px 14px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  color: var(--white);
  transition:
    background 180ms ease,
    border-color 180ms ease,
    color 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: color-mix(in srgb, var(--white) 93%, transparent);
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 14px;
}

.brand small {
  color: color-mix(in srgb, currentColor 72%, transparent);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.3vw, 28px);
  font-size: 14px;
}

.site-nav a {
  text-decoration: none;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid color-mix(in srgb, currentColor 35%, transparent);
  border-radius: var(--radius);
  background: transparent;
  color: inherit;
}

.menu-toggle span[aria-hidden="true"],
.menu-toggle span[aria-hidden="true"]::before,
.menu-toggle span[aria-hidden="true"]::after {
  display: block;
  width: 18px;
  height: 2px;
  margin: auto;
  background: currentColor;
  content: "";
}

.menu-toggle span[aria-hidden="true"]::before {
  transform: translateY(-6px);
}

.menu-toggle span[aria-hidden="true"]::after {
  transform: translateY(4px);
}

.section {
  padding: clamp(72px, 10vw, 128px) clamp(18px, 4vw, 56px);
}

.section-inner {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.section-dark {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 100%) 0 0 / 112px
      112px,
    var(--ink);
  color: var(--white);
}

.section-paper {
  background: var(--paper);
}

.section-white {
  background: var(--white);
}

.section-ink {
  background: var(--graphite);
  color: var(--white);
}

.eyebrow,
.status,
.panel-label,
.step-index,
time {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--steel);
  font-size: 12px;
  font-weight: 700;
}

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

h1 {
  max-width: 850px;
  margin-bottom: 20px;
  font-size: clamp(42px, 5.7vw, 68px);
  line-height: 0.96;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 4.6vw, 56px);
  line-height: 1.02;
}

h3 {
  margin-bottom: 14px;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.1;
}

.hero {
  min-height: 100svh;
  padding: 82px clamp(18px, 4vw, 56px) 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.75fr);
  gap: clamp(34px, 7vw, 92px);
  align-items: center;
}

.hero-copy {
  padding: 14px 0 18px;
}

.hero-lede {
  max-width: 730px;
  color: color-mix(in srgb, var(--white) 77%, transparent);
  font-size: clamp(17px, 1.8vw, 20px);
}

.hero-actions,
.link-row,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  padding: 12px 18px;
  font-weight: 700;
  text-decoration: none;
}

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

.button.secondary {
  color: inherit;
}

.availability {
  max-width: 660px;
  margin: 20px 0 0;
  color: color-mix(in srgb, var(--white) 66%, transparent);
  font-size: 14px;
}

.hero-name {
  margin: 0 0 6px;
  color: var(--white);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.05;
}

.hero-portrait {
  margin: 0;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--white) 20%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--graphite) 72%, transparent);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
}

.hero-portrait img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
}

.focus-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.82fr);
  gap: clamp(32px, 6vw, 86px);
  align-items: center;
}

.focus-grid > div p:not(.eyebrow) {
  max-width: 520px;
  color: color-mix(in srgb, var(--white) 74%, transparent);
  font-size: 18px;
}

.focus .trace-panel {
  background: color-mix(in srgb, var(--ink) 58%, transparent);
}

.trace-panel {
  border: 1px solid color-mix(in srgb, var(--white) 20%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--graphite) 72%, transparent);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
  padding: clamp(18px, 2.4vw, 26px);
}

.panel-label {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 26px;
  color: color-mix(in srgb, var(--white) 64%, transparent);
  font-size: 11px;
}

.trace-panel h2 {
  font-size: clamp(25px, 3vw, 36px);
}

.trace {
  position: relative;
  display: grid;
  gap: 10px;
  margin: 20px 0;
}

.trace::before {
  position: absolute;
  left: 28px;
  top: 24px;
  bottom: 24px;
  width: 1px;
  background: color-mix(in srgb, var(--white) 18%, transparent);
  content: "";
}

.trace-step {
  position: relative;
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 10px 14px;
  width: 100%;
  border: 1px solid color-mix(in srgb, var(--white) 16%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--ink) 34%, transparent);
  color: var(--white);
  padding: 14px 16px;
  text-align: left;
  cursor: pointer;
  transition:
    border-color 180ms ease,
    background 180ms ease,
    transform 180ms ease;
}

.trace-step:hover,
.trace-step:focus-visible,
.trace-step.is-active {
  border-color: color-mix(in srgb, var(--white) 46%, transparent);
  background: color-mix(in srgb, var(--white) 10%, var(--graphite));
}

.trace-step:hover,
.trace-step.is-active {
  transform: translateX(6px);
}

.trace-step strong {
  align-self: end;
  font-size: 17px;
}

.trace-step small {
  grid-column: 2;
  color: color-mix(in srgb, var(--white) 68%, transparent);
}

.step-index {
  display: grid;
  grid-row: span 2;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  color: var(--white);
  font-size: 10px;
}

.trace-evidence {
  min-height: 56px;
  margin: 0;
  color: color-mix(in srgb, var(--white) 76%, transparent);
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(100%, var(--max));
  margin: clamp(20px, 4vw, 42px) auto 0;
  border-top: 1px solid color-mix(in srgb, var(--white) 16%, transparent);
}

.proof-strip a {
  display: grid;
  gap: 5px;
  min-height: 90px;
  align-content: center;
  border-right: 1px solid color-mix(in srgb, var(--white) 16%, transparent);
  padding: 20px clamp(14px, 2.5vw, 28px);
  text-decoration: none;
}

.proof-strip a:first-child {
  border-left: 1px solid color-mix(in srgb, var(--white) 16%, transparent);
}

.proof-strip strong {
  color: var(--white);
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1;
}

.proof-strip span {
  color: color-mix(in srgb, var(--white) 70%, transparent);
  font-size: 14px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: clamp(34px, 5vw, 60px);
}

.section-heading p:not(.eyebrow) {
  color: var(--steel);
  font-size: 18px;
}

.feature {
  display: grid;
  gap: clamp(22px, 4vw, 42px);
  border-top: 1px solid var(--rule);
  padding: clamp(28px, 5vw, 54px) 0;
}

.feature-primary {
  grid-template-columns: minmax(0, 0.78fr) minmax(420px, 1.02fr);
  align-items: center;
}

.feature-copy {
  max-width: 650px;
}

.status {
  margin-bottom: 12px;
  color: var(--steel);
  font-size: 11px;
  font-weight: 800;
}

.signal-list {
  display: grid;
  gap: 8px;
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.signal-list li {
  position: relative;
  padding-left: 20px;
  color: var(--graphite);
}

.signal-list li::before {
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 7px;
  height: 7px;
  background: var(--graphite);
  content: "";
}

.link-row {
  margin-top: 22px;
}

.link-row a {
  font-weight: 800;
}

.link-row a::after {
  content: " ->";
  color: var(--steel);
}

.feature-media,
.inline-evidence {
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.feature-media {
  display: block;
  padding: 16px;
}

.enterprise-panel {
  display: grid;
  min-height: 300px;
  align-content: center;
  gap: 16px;
  padding: clamp(22px, 4vw, 42px);
}

.enterprise-panel > span {
  color: var(--steel);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.enterprise-panel > strong {
  max-width: 560px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.05;
}

.enterprise-panel > p {
  max-width: 560px;
  margin: 0;
  color: var(--steel);
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--rule);
  background: var(--rule);
}

.scope-grid div {
  display: grid;
  gap: 2px;
  min-height: 112px;
  align-content: center;
  background: var(--white);
  padding: 18px;
}

.scope-grid span {
  color: var(--steel);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scope-grid strong {
  color: var(--ink);
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1;
}

.scope-grid small {
  color: var(--steel);
  font-size: 14px;
}

.career-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(22px, 4vw, 42px);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  margin-top: clamp(26px, 5vw, 58px);
  padding: clamp(24px, 4vw, 36px) 0;
}

.career-item h3 {
  margin-bottom: 10px;
  font-size: clamp(21px, 2.2vw, 28px);
}

.career-item p:not(.status) {
  margin-bottom: 0;
  color: var(--steel);
}

.supporting-heading {
  margin-top: clamp(24px, 5vw, 58px);
}

.feature-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 48px);
}

.compact-pair {
  grid-template-columns: minmax(0, 1fr);
}

.feature-pair .feature {
  align-content: start;
}

.inline-evidence {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top left;
}

.compact-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.compact-metrics span {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--white);
  padding: 10px 12px;
  color: var(--steel);
}

.compact-metrics strong {
  color: var(--ink);
  font-size: 22px;
}

.thesis-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.72fr);
  gap: clamp(32px, 6vw, 86px);
  align-items: center;
}

.thesis-grid h2 {
  max-width: 820px;
}

.thesis-map {
  display: grid;
  gap: 1px;
  border: 1px solid color-mix(in srgb, var(--white) 20%, transparent);
  background: color-mix(in srgb, var(--white) 20%, transparent);
}

.thesis-map div {
  display: grid;
  grid-template-columns: 0.78fr 1fr;
  gap: 16px;
  padding: 18px;
  background: var(--graphite);
}

.thesis-map span {
  color: color-mix(in srgb, var(--white) 62%, transparent);
}

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

.timeline li {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: clamp(18px, 4vw, 44px);
  border-top: 1px solid var(--rule);
  padding: 26px 0;
}

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

.timeline time {
  color: var(--steel);
  font-size: 12px;
  font-weight: 800;
}

.timeline h3 {
  margin-bottom: 8px;
  font-size: clamp(22px, 2.4vw, 30px);
}

.timeline p {
  max-width: 780px;
  color: var(--steel);
}

.timeline a {
  font-weight: 800;
}

.writing-layout {
  display: grid;
  gap: 8px;
}

.publication-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 44px);
}

.publication {
  display: grid;
  gap: 28px;
  border-top: 1px solid var(--rule);
  padding-top: 30px;
}

.publication p:not(.status) {
  color: var(--steel);
}

.article-list {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-list li {
  display: grid;
  gap: 4px;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
}

.article-list a {
  font-weight: 800;
}

.article-list span {
  color: var(--steel);
  font-size: 14px;
}

.network-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}

.network-grid a {
  display: grid;
  min-height: 150px;
  align-content: space-between;
  gap: 24px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 22px;
  text-decoration: none;
  transition:
    background 180ms ease,
    color 180ms ease;
}

.network-grid a:hover,
.network-grid a:focus-visible {
  background: var(--ink);
  color: var(--white);
}

.network-grid span {
  color: var(--steel);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  text-transform: uppercase;
}

.network-grid strong {
  font-size: 20px;
  line-height: 1.25;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(280px, 0.4fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: center;
}

.contact p {
  max-width: 740px;
  color: color-mix(in srgb, var(--white) 74%, transparent);
  font-size: 18px;
}

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

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

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px 24px;
  border-top: 1px solid var(--rule);
  background: var(--white);
  padding: 28px clamp(18px, 4vw, 56px);
  color: var(--steel);
  font-size: 14px;
}

.site-footer a {
  font-weight: 700;
}

@media (max-width: 940px) {
  .site-header {
    padding: 14px 18px;
  }

  .menu-toggle {
    display: grid;
    place-items: center;
  }

  .site-nav {
    position: fixed;
    inset: 67px 14px auto;
    display: none;
    grid-template-columns: 1fr;
    gap: 0;
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    background: var(--white);
    color: var(--ink);
    box-shadow: var(--shadow);
    overflow: hidden;
  }

  .site-header.is-open .site-nav {
    display: grid;
  }

  .site-nav a {
    border-bottom: 1px solid var(--rule);
    padding: 16px;
  }

  .site-nav a:last-child {
    border-bottom: 0;
  }

  .hero-grid,
  .feature-primary,
  .feature-pair,
  .career-grid,
  .thesis-grid,
  .focus-grid,
  .publication-columns,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 96px;
  }

  .hero-portrait {
    order: -1;
    justify-self: center;
    width: 100%;
    max-width: 260px;
    margin-bottom: 4px;
  }

  .trace-panel {
    margin-bottom: 20px;
  }

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

  .proof-strip a:nth-child(odd) {
    border-left: 1px solid color-mix(in srgb, var(--white) 16%, transparent);
  }

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

@media (max-width: 620px) {
  h1 {
    font-size: 46px;
  }

  h2 {
    font-size: 34px;
  }

  .panel-label,
  .brand small {
    display: none;
  }

  .hero-actions .button,
  .button {
    width: 100%;
  }

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

  .proof-strip a,
  .proof-strip a:first-child,
  .proof-strip a:nth-child(odd) {
    min-height: 92px;
    border-left: 1px solid color-mix(in srgb, var(--white) 16%, transparent);
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .thesis-map div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .trace-step:hover,
  .trace-step.is-active {
    transform: none;
  }
}

/* Credentials section */
.cred-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
  margin-top: clamp(20px, 4vw, 40px);
}
.cred-grid > div {
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 20px 22px;
}
.cred-grid span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 8px;
}
.cred-grid strong { font-size: 16px; line-height: 1.35; }
.cred-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(26px, 4vw, 46px);
}
.cred-columns h3 {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 14px;
}
.cred-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.cred-list strong { display: block; margin-bottom: 2px; }
.cred-list span { color: var(--steel); font-size: 14px; }
.cred-langs { margin-top: clamp(22px, 4vw, 40px); color: var(--steel); }
@media (max-width: 760px) {
  .cred-grid { grid-template-columns: 1fr; }
  .cred-columns { grid-template-columns: 1fr; }
}