:root {
  color-scheme: light;
  --paper: #f5f5f2;
  --ink: #0b0b0b;
  --muted: #575757;
  --soft: #e8e8e4;
  --line: #cfcfca;
  --line-dark: #9b9b96;
  --white: #ffffff;
  --black: #000000;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  --content-max: 1500px;
  --page-gutter: clamp(14px, 2vw, 40px);
  font-family: Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

body::selection {
  background: var(--ink);
  color: var(--white);
}

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

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

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 20;
  transform: translateY(-150%);
  background: var(--ink);
  color: var(--white);
  padding: 0.65rem 0.85rem;
  border-radius: 6px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(245, 245, 242, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.nav-shell {
  width: min(var(--content-max), calc(100% - (var(--page-gutter) * 2)));
  min-height: 68px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
}

.brand {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 700;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 1.3rem;
  color: var(--muted);
  font-size: 0.91rem;
}

.main-nav a,
.nav-resume,
.site-footer a {
  border-bottom: 1px solid transparent;
}

.main-nav a:hover,
.nav-resume:hover,
.site-footer a:hover {
  border-color: currentColor;
}

.nav-resume {
  font-size: 0.91rem;
  font-weight: 700;
}

.hero {
  width: min(var(--content-max), calc(100% - (var(--page-gutter) * 2)));
  min-height: calc(100svh - 68px);
  margin: 0 auto;
  padding: 4.2rem 0 3rem;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1fr);
  gap: 3.5rem;
  align-items: start;
}

.hero-copy {
  display: grid;
  gap: 1.1rem;
}

.eyebrow,
.section-kicker,
.project-index {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 0;
  max-width: 8ch;
  font-size: 4.8rem;
  line-height: 0.95;
  font-weight: 700;
}

h2 {
  margin-bottom: 0;
  font-size: 2.1rem;
  line-height: 1.08;
}

h3 {
  margin-bottom: 0.4rem;
  font-size: 1.05rem;
  line-height: 1.25;
}

.hero-lede {
  max-width: 560px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.18rem;
  line-height: 1.45;
}

.hero-tags,
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.hero-tags span {
  border: 1px solid var(--line-dark);
  border-radius: 6px;
  padding: 0.36rem 0.55rem;
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.hero-meta {
  max-width: 580px;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-meta span + span::before {
  content: "/";
  margin-right: 0.55rem;
  color: var(--line-dark);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-dark);
  border-radius: 6px;
  padding: 0.72rem 1rem;
  background: transparent;
  color: var(--ink);
  font-weight: 700;
  line-height: 1;
}

.button:hover {
  border-color: var(--ink);
  background: var(--soft);
}

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

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

.quick-list {
  display: grid;
  gap: 0.7rem;
  margin: 0;
}

.quick-list div {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 1rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
}

.quick-list dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.quick-list dd {
  margin: 0;
}

.hero-visuals {
  display: grid;
  grid-template-columns: 0.72fr 1fr;
  gap: 1rem;
  align-items: start;
}

.portrait {
  min-height: 560px;
  margin: 0;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.portrait img {
  width: 100%;
  height: auto;
  max-height: 610px;
  object-fit: contain;
  object-position: 50% 100%;
  filter: grayscale(1) contrast(1.1);
  mix-blend-mode: darken;
}

.cosmos {
  scroll-margin-top: 88px;
  min-height: 640px;
  display: grid;
  grid-template-rows: auto minmax(380px, 1fr) auto;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.cosmos-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.cosmos-header h2 {
  max-width: 12ch;
  font-size: 1.15rem;
}

.scale-note {
  border: 1px solid var(--line-dark);
  border-radius: 6px;
  padding: 0.24rem 0.45rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  white-space: nowrap;
}

#cosmosCanvas {
  width: 100%;
  height: 100%;
  min-height: 380px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fafafa;
}

.fact-row {
  display: grid;
  gap: 0.75rem;
}

.research-link {
  width: fit-content;
}

.body-readout {
  display: grid;
  gap: 0.25rem;
}

.body-readout span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.body-readout strong {
  max-width: 18rem;
  font-size: 0.95rem;
}

.fact-text {
  min-height: 3.2rem;
  margin-bottom: 0;
  color: var(--muted);
}

.signal-strip {
  width: min(var(--content-max), calc(100% - (var(--page-gutter) * 2)));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.signal-strip article {
  min-height: 150px;
  padding: 1.2rem;
  border-right: 1px solid var(--line-dark);
}

.signal-strip article:last-child {
  border-right: 0;
}

.signal-strip span {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 2.35rem;
  line-height: 1;
  font-weight: 700;
}

.signal-strip strong {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.88rem;
  text-transform: uppercase;
}

.signal-strip p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.section {
  width: min(var(--content-max), calc(100% - (var(--page-gutter) * 2)));
  margin: 0 auto;
  padding: 5rem 0;
  border-bottom: 1px solid var(--line);
}

.two-column {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 3rem;
}

.section-heading {
  display: grid;
  gap: 0.55rem;
  margin-bottom: 1.8rem;
}

.section-copy {
  display: grid;
  gap: 1rem;
}

.section-copy p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.profile-section {
  align-items: start;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.value-grid article {
  min-height: 170px;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.value-grid span,
.project-metrics span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.value-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 1rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 0.38fr 1fr;
  gap: 1rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.timeline-meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.timeline-meta span {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--ink);
  font-weight: 700;
}

.timeline-body p,
.timeline-body ul {
  margin-bottom: 0;
}

.role-line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 0.9rem;
}

.role-line h3 {
  margin-bottom: 0;
}

.role-line span {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin-bottom: 0.9rem;
}

.impact-grid div {
  min-height: 72px;
  padding: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fafafa;
}

.impact-grid span {
  display: block;
  margin-bottom: 0.2rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.impact-grid p {
  color: var(--muted);
  font-size: 0.82rem;
}

.tools {
  color: var(--muted);
  font-size: 0.92rem;
}

ul {
  margin: 0.9rem 0 0;
  padding-left: 1.1rem;
}

li + li {
  margin-top: 0.45rem;
}

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

.project-card,
.skills-grid article,
.skills-board article,
.stacked-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.project-card {
  min-height: 250px;
  display: grid;
  align-content: start;
  gap: 0.8rem;
  padding: 1.25rem;
}

.project-card-wide {
  min-height: 210px;
  grid-column: 1 / -1;
}

.project-card p {
  margin-bottom: 0;
}

.project-card .result {
  margin-top: 0.4rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.project-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
}

.project-metrics span {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.32rem 0.48rem;
}

.paper-link {
  width: fit-content;
  margin-top: 0.2rem;
  border-bottom: 1px solid currentColor;
  font-weight: 700;
}

.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.source-links a {
  border-bottom: 1px solid currentColor;
}

.skills-board {
  display: grid;
  gap: 0.75rem;
}

.skills-board article {
  display: grid;
  grid-template-columns: 13rem 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 0.9rem 1rem;
}

.skills-board h3 {
  margin-bottom: 0;
}

.skills-board p {
  margin-bottom: 0;
  color: var(--muted);
}

.skills-grid article {
  min-height: 170px;
  padding: 1.2rem;
}

.skills-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.stacked-list {
  display: grid;
  gap: 1rem;
}

.stacked-list article {
  padding: 1.2rem;
}

.stacked-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.credential-section {
  padding: 3.5rem 0;
}

.credential-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.credential-grid article {
  min-height: 140px;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.credential-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.site-footer {
  width: min(var(--content-max), calc(100% - (var(--page-gutter) * 2)));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
}

.site-footer p {
  margin-bottom: 0;
  color: var(--ink);
  font-weight: 700;
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.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;
}

.blud-chat {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 30;
  display: grid;
  justify-items: end;
  gap: 0.75rem;
  pointer-events: none;
}

.blud-chat > * {
  pointer-events: auto;
}

.blud-launcher,
.blud-close,
.blud-prompts button,
.blud-form button {
  font: inherit;
  cursor: pointer;
}

.blud-launcher {
  width: 68px;
  height: 56px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
  box-shadow: var(--shadow);
}

.blud-launcher span,
.blud-mark {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
}

.blud-panel {
  width: min(390px, calc(100vw - 32px));
  max-height: min(680px, calc(100vh - 112px));
  display: grid;
  grid-template-rows: auto minmax(180px, 1fr) auto auto;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.blud-panel[hidden] {
  display: none;
}

.blud-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.8rem;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid var(--line);
}

.blud-mark {
  width: 48px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 6px;
  background: var(--ink);
  color: var(--white);
}

.blud-header p {
  margin-bottom: 0.15rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.blud-header h2 {
  font-size: 1.05rem;
}

.blud-close {
  border: 1px solid var(--line-dark);
  border-radius: 6px;
  padding: 0.45rem 0.55rem;
  background: transparent;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.blud-feed {
  display: grid;
  align-content: start;
  gap: 0.7rem;
  padding: 1rem;
  overflow-y: auto;
  background: #fafafa;
}

.blud-message {
  width: fit-content;
  max-width: 88%;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--muted);
  font-size: 0.92rem;
}

.blud-bot {
  justify-self: start;
}

.blud-user {
  justify-self: end;
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.blud-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--line);
}

.blud-prompts button {
  border: 1px solid var(--line-dark);
  border-radius: 6px;
  padding: 0.42rem 0.55rem;
  background: transparent;
  color: var(--ink);
  font-size: 0.76rem;
  font-weight: 700;
}

.blud-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.55rem;
  padding: 0 1rem 1rem;
}

.blud-form input {
  min-width: 0;
  border: 1px solid var(--line-dark);
  border-radius: 6px;
  padding: 0.75rem 0.8rem;
  background: var(--white);
  color: var(--ink);
  font: inherit;
}

.blud-form button {
  border: 1px solid var(--ink);
  border-radius: 6px;
  padding: 0.75rem 0.9rem;
  background: var(--ink);
  color: var(--white);
  font-weight: 700;
}

@media (prefers-reduced-motion: no-preference) {
  .motion-ready {
    opacity: 0;
    transform: translateY(32px);
    transition:
      opacity 700ms ease,
      transform 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
    transition-delay: var(--motion-delay, 0ms);
    will-change: opacity, transform;
  }

  .motion-ready.motion-left {
    transform: translateX(-28px);
  }

  .motion-ready.motion-right {
    transform: translateX(28px);
  }

  .motion-ready.motion-scale {
    transform: translateY(24px) scale(0.985);
    transform-origin: 50% 0;
  }

  .motion-ready.motion-in {
    opacity: 1;
    transform: translate(0, 0) scale(1);
  }

  .blud-panel {
    transform: translateY(12px) scale(0.985);
    opacity: 0;
    transition:
      opacity 220ms ease,
      transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
    transform-origin: 100% 100%;
  }

  .blud-panel.blud-open {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

@media (max-width: 1180px) and (prefers-reduced-motion: no-preference) {
  .motion-ready.motion-left,
  .motion-ready.motion-right {
    transform: translateY(32px);
  }
}

@media (max-width: 1180px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    gap: 2.5rem;
    align-items: start;
    padding: 3.6rem 0 3rem;
  }

  .hero-copy {
    max-width: 720px;
  }

  .hero-visuals {
    width: 100%;
    max-width: 800px;
    justify-self: center;
    grid-template-columns: minmax(220px, 0.65fr) minmax(340px, 1fr);
    align-items: stretch;
  }

  h1 {
    max-width: 12ch;
  }

  .portrait {
    min-height: 560px;
  }

  .cosmos {
    min-height: 700px;
  }

  .portrait img {
    max-height: 540px;
  }

  .cosmos {
    grid-template-rows: auto minmax(430px, 1fr) auto;
  }
}

@media (max-width: 820px) {
  .nav-shell {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .main-nav {
    display: none;
  }

  .hero {
    padding-top: 3rem;
  }

  h1 {
    font-size: 3.3rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .hero-visuals,
  .two-column,
  .timeline-item,
  .project-grid,
  .skills-grid,
  .value-grid,
  .credential-grid,
  .signal-strip {
    grid-template-columns: 1fr;
  }

  .skills-board article,
  .role-line {
    grid-template-columns: 1fr;
  }

  .role-line {
    display: grid;
    gap: 0.25rem;
  }

  .portrait {
    min-height: 460px;
  }

  .cosmos {
    min-height: 520px;
  }

  .signal-strip article {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .signal-strip article:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 3.5rem 0;
  }
}

@media (max-width: 560px) {
  .nav-shell,
  .hero,
  .section,
  .signal-strip,
  .site-footer {
    width: min(var(--content-max), calc(100% - 24px));
  }

  .hero {
    gap: 2rem;
  }

  h1 {
    font-size: 2.75rem;
  }

  .hero-lede {
    font-size: 1.08rem;
  }

  .quick-list div,
  .body-readout {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .hero-actions {
    display: grid;
  }

  .hero-meta {
    display: grid;
    gap: 0.35rem;
  }

  .hero-meta span + span::before {
    content: "";
    margin-right: 0;
  }

  .impact-grid,
  .skills-board article {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .cosmos-header {
    display: grid;
  }

  .portrait {
    min-height: 390px;
  }

  .site-footer {
    display: grid;
  }

  .blud-chat {
    right: 0.75rem;
    bottom: 0.75rem;
  }

  .blud-panel {
    width: calc(100vw - 24px);
  }

  .blud-header {
    grid-template-columns: auto 1fr;
  }

  .blud-close {
    grid-column: 1 / -1;
    width: fit-content;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}