:root {
  --paper: #f6f4ef;
  --ink: #141416;
  --dim: #6a675f;
  --rule: #d9d6cf;
  --accent: #2b5fb0;
  --sub: #edeae3;
  --font-xs: 0.86rem;
  --font-xxs: 0.82rem;
}

:root[data-theme="dark"] {
  --paper: #0e0f11;
  --ink: #e6e3dc;
  --dim: #7a776f;
  --rule: #1f2225;
  --accent: #7ba7ff;
  --sub: #14171a;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(43, 95, 176, 0.06), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent 16rem),
    var(--paper);
  color: var(--ink);
  font-family: "Inter", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

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

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

.mono {
  font-family: "IBM Plex Mono", monospace;
  font-feature-settings: "zero";
  font-variant-numeric: tabular-nums;
}

.dim,
.row-meta,
.section-copy,
.service-row__summary,
.table-summary,
.footer,
.sidebar__meta,
.identity__domain,
.identity__revision {
  color: var(--dim);
}

.rule-t {
  border-top: 1px solid var(--rule);
}

.rule-r {
  border-right: 1px solid var(--rule);
}

.rule-l {
  border-left: 1px solid var(--rule);
}

.rule-b {
  border-bottom: 1px solid var(--rule);
}

.row-h:hover {
  background: var(--sub);
}

.site-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 1.75rem 1.5rem 1.5rem;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
}

.sidebar__head {
  margin-bottom: 2.25rem;
}

.sidebar__panel {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.identity {
  display: block;
}

.identity__meta {
  display: block;
}

.identity__photo {
  display: block;
  width: 100px;
  height: 100px;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: 2px;
  margin-bottom: 0.75rem;
}

.identity__domain,
.identity__revision,
.sidebar__meta,
.theme-toggle,
.nav-link,
.section-kicker,
.label-row,
.service-row__id,
.service-row__bullets,
.service-row__duration,
.row-key,
.talk-kind {
  font-size: var(--font-xs);
  line-height: 1.6;
}

.identity__name {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 0.25rem;
}

.identity__revision {
  margin-top: 0.25rem;
}

.sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  margin-bottom: 1.75rem;
}

.sidebar__block {
  margin-bottom: 1.75rem;
}

.sidebar__meta {
  line-height: 1.9;
}

.section-kicker,
.label-row {
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.section-kicker {
  margin-bottom: 0.875rem;
}

.nav-link {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 0.5rem;
  padding: 0.25rem 0;
}

.nav-link.active {
  color: var(--accent);
}

.nav-link__index {
  color: var(--dim);
}

.sidebar__theme {
  margin-top: auto;
  padding-top: 1rem;
}

.mobile-nav-toggle,
.theme-toggle {
  width: 100%;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--dim);
  padding: 0.4rem 0.8rem;
  cursor: pointer;
}

.mobile-nav-toggle {
  display: none;
  width: auto;
  flex-shrink: 0;
}

.mobile-nav-toggle:hover,
.theme-toggle:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.main {
  min-width: 0;
  padding: 1.75rem 2.5rem 2.5rem;
}

.section {
  padding-bottom: 1.75rem;
  margin-bottom: 1.5rem;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.section-head--header {
  align-items: end;
}

.section-note {
  color: var(--dim);
  font-size: var(--font-xs);
}

.hero-grid,
.research-hero {
  display: grid;
  gap: 3rem;
  align-items: start;
}

.hero-grid {
  grid-template-columns: minmax(0, 1fr) 480px;
}

.research-hero {
  grid-template-columns: minmax(0, 1fr) 240px;
}

.hero-title,
.page-title {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 600;
  max-width: 42rem;
  text-wrap: balance;
}

.hero-copy {
  margin: 1rem 0 0;
  max-width: 36rem;
  font-size: 0.95rem;
  line-height: 1.7;
}

.hero-copy--narrow {
  max-width: 40rem;
}

.article-header {
  display: grid;
  gap: 1rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--dim);
  font-size: var(--font-xs);
}

.article-prose {
  display: grid;
  gap: 1rem;
  max-width: 44rem;
  font-size: 0.95rem;
  line-height: 1.75;
}

.article-prose p,
.article-prose ul,
.article-prose blockquote,
.article-prose figure,
.article-prose h2 {
  margin: 0;
}

.article-prose h2 {
  font-size: 1.35rem;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.article-prose ul {
  padding-left: 1.25rem;
}

.article-prose blockquote {
  padding: 1rem 1.25rem;
  border-left: 2px solid var(--accent);
  background: var(--sub);
  color: var(--ink);
}

.article-figure {
  display: grid;
  gap: 0.5rem;
}

.article-figure img {
  display: block;
  width: 100%;
  max-width: 44rem;
  border: 1px solid var(--rule);
}

.article-figure figcaption {
  color: var(--dim);
  font-size: var(--font-xs);
  text-align: center;
}

.link-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.video-embed {
  width: 100%;
  max-width: 44rem;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--rule);
  background: #000;
}

.video-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 85%, var(--sub));
  font-size: var(--font-xs);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.95rem;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
}

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

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

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

.hero-glance {
  padding-left: 1.25rem;
}

.glance {
  margin: 0;
}

.glance__row {
  display: grid;
  grid-template-columns: 102px minmax(0, 1fr);
  gap: 0.875rem;
  align-items: baseline;
  padding: 0.4rem 0;
  border-bottom: 1px dotted var(--rule);
}

.glance__row.is-last {
  border-bottom: none;
}

.glance dt {
  margin: 0;
  color: var(--dim);
}

.glance dd {
  margin: 0;
}

.service-row {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr) 280px 100px;
  gap: 1.25rem;
  align-items: start;
  padding: 0.9rem 0.375rem;
}

.service-row__title,
.table-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.service-row__summary,
.table-summary,
.section-copy,
.about-copy {
  font-size: 0.88rem;
  line-height: 1.6;
}

.service-row__summary {
  max-width: 27rem;
  margin: 0.25rem 0 0;
}

.service-row__bullets {
  list-style: none;
  margin: 0;
  padding: 0;
}

.service-row__duration {
  text-align: right;
}

.section-copy {
  max-width: 35rem;
  margin: 0 0 0.875rem;
}

.section-copy--tight {
  max-width: 32rem;
  margin: 0;
}

.section-copy--footnote {
  margin-bottom: 1rem;
}

.label-row {
  display: grid;
  gap: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--rule);
}

.table-row {
  display: grid;
  gap: 1rem;
  align-items: baseline;
  padding: 0.8rem 0;
  font-size: 0.85rem;
}

.engagement-table {
  grid-template-columns: 50px 54px 150px minmax(0, 1fr) 200px 20px;
}

.case-table {
  grid-template-columns: 60px minmax(0, 1fr) 220px 20px;
}

.talk-table {
  grid-template-columns: 60px 100px minmax(0, 1fr) 240px 120px 80px;
}

.row-key,
.row-meta,
.talk-kind {
  font-size: var(--font-xs);
}

.row-arrow,
.talk-video {
  text-align: right;
}

.talk-material {
  text-align: right;
}

.talk-kind {
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.row-meta--hidden {
  visibility: hidden;
}

.table-summary {
  max-width: 29rem;
  margin: 0.3rem 0 0;
}

.about-copy {
  max-width: 40rem;
  margin: 0 0 0.875rem;
}

.inline-link {
  color: var(--accent);
  font-size: 0.76rem;
  text-decoration-line: underline;
  text-decoration-style: dotted;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.main a[rel~="noopener"]:not(.btn) {
  text-decoration-line: underline;
  text-decoration-style: dotted;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.contact-grid,
.split-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.5rem;
}

.contact-callout {
  max-width: 26rem;
  margin-bottom: 1rem;
  font-size: 1.25rem;
  line-height: 1.35;
  letter-spacing: -0.015em;
}

.contact-list {
  margin: 0;
}

.contact-list__row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--rule);
}

.contact-list__row.is-last {
  border-bottom: none;
}

.contact-list dt,
.contact-list dd {
  margin: 0;
}

.portrait {
  margin: 0;
}

.portrait img {
  display: block;
  width: 180px;
  height: 225px;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: 2px;
}

.portrait figcaption {
  margin-top: 0.4rem;
  font-size: var(--font-xxs);
  letter-spacing: 0.04em;
  color: var(--dim);
}

.simple-list__row {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 1rem;
  align-items: baseline;
  padding: 0.65rem 0;
  font-size: 0.88rem;
}

.simple-list--compact .simple-list__row {
  grid-template-columns: 120px minmax(0, 1fr);
  padding: 0.5rem 0;
}

.project-row {
  display: grid;
  grid-template-columns: 140px 130px minmax(0, 1fr) 80px;
  gap: 1.25rem;
  align-items: baseline;
  padding: 0.8rem 0;
  font-size: 0.85rem;
}

.project-row__name {
  font-weight: 600;
}

.project-row__status {
  text-align: right;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

.link-list,
.plain-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.link-list li {
  padding: 0.35rem 0;
  font-size: 0.85rem;
}

.plain-list {
  font-size: 0.88rem;
  line-height: 1.9;
}

.table-head__right {
  text-align: right;
}

.talk-video a {
  position: relative;
  display: inline-block;
  line-height: 0;
}

.talk-video img {
  display: block;
  border: 1px solid var(--rule);
  border-radius: 2px;
}

.talk-video__play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 7px solid rgba(255, 255, 255, 0.95);
  filter: drop-shadow(0 0 2px rgba(0, 0, 0, 0.6));
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.875rem;
  margin-top: 1.25rem;
  font-size: var(--font-xs);
}

@media (max-width: 1100px) {
  .service-row {
    grid-template-columns: 60px minmax(0, 1fr);
  }

  .service-row__bullets,
  .service-row__duration {
    grid-column: 2;
  }

  .service-row__duration {
    text-align: left;
  }

  .engagement-table {
    grid-template-columns: 50px 54px 130px minmax(0, 1fr);
  }

  .engagement-table > :nth-child(5),
  .engagement-table > :nth-child(6) {
    display: none;
  }

  .case-table {
    grid-template-columns: 60px minmax(0, 1fr);
  }

  .talk-table {
    grid-template-columns: 60px minmax(0, 1fr) 130px 80px;
  }

  .case-table > :nth-child(3),
  .case-table > :nth-child(4),
  .talk-table > :nth-child(2),
  .talk-table > :nth-child(4) {
    display: none;
  }

  .project-row {
    grid-template-columns: 140px minmax(0, 1fr);
  }

  .project-row__status {
    text-align: left;
  }
}

@media (max-width: 820px) {
  .site-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    min-height: auto;
    padding: 1rem 1rem 1.125rem;
    border-right: none;
    border-bottom: 1px solid var(--rule);
  }

  .sidebar__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.875rem;
    margin-bottom: 0;
  }

  .identity {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
  }

  .identity__photo {
    width: 56px;
    height: 56px;
    margin-bottom: 0;
  }

  .identity__meta {
    min-width: 0;
  }

  .identity__domain {
    line-height: 1.2;
  }

  .identity__name {
    margin-top: 0.15rem;
  }

  .identity__revision {
    margin-top: 0.15rem;
  }

  .mobile-nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.8rem;
    padding: 0.75rem 1.1rem;
    font-size: 1.72rem;
    line-height: 1;
  }

  .sidebar__panel {
    display: none;
    padding-top: 1rem;
  }

  .sidebar.is-open .sidebar__panel {
    display: flex;
  }

  .sidebar__nav,
  .sidebar__block {
    margin-bottom: 1.25rem;
  }

  .sidebar__theme {
    margin-top: 0;
    padding-top: 0;
  }

  .main {
    padding: 1.5rem 1rem 2rem;
  }

  .hero-grid,
  .research-hero,
  .contact-grid,
  .split-section {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .hero-glance {
    padding-left: 0;
    border-left: none;
    border-top: 1px solid var(--rule);
    padding-top: 1rem;
  }

  .simple-list__row,
  .simple-list--compact .simple-list__row,
  .project-row {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .footer {
    flex-direction: column;
  }

  .article-meta {
    flex-direction: column;
    gap: 0.25rem;
  }
}

@media (max-width: 560px) {
  .main {
    padding-inline: 0.875rem;
  }

  .service-row,
  .engagement-table,
  .case-table,
  .talk-table {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .label-row {
    display: none;
  }

  .table-row,
  .service-row {
    padding-inline: 0;
  }

  .row-arrow,
  .talk-video,
  .talk-material {
    text-align: left;
  }

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