:root {
  --background: #fbfcfe;
  --surface: #ffffff;
  --surface-alt: #f1f5f9;
  --ink: #101419;
  --muted: #5b6572;
  --line: #d9e0e8;
  --cobalt: #2857d9;
  --cobalt-strong: #003cff;
  --teal: #0f9f8f;
  --amber: #be7a10;
  --rose: #b43b5d;
  --terminal: #070b10;
  --terminal-line: #26313d;
  --terminal-text: #d9f2ff;
  --shadow: 0 18px 45px rgba(17, 24, 39, 0.11);
  --radius: 8px;
  --max: 1180px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@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;
  }
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(40, 87, 217, 0.055), transparent 330px),
    linear-gradient(90deg, rgba(16, 20, 25, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(16, 20, 25, 0.035) 1px, transparent 1px),
    var(--background);
  background-size: 42px 42px;
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: var(--cobalt);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

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

code {
  border: 1px solid var(--line);
  background: var(--surface-alt);
  border-radius: 6px;
  padding: 0.12rem 0.35rem;
  font-size: 0.92em;
}

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

h1,
h2 {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0;
  line-height: 1.08;
}

h1 {
  max-width: 920px;
  font-size: clamp(2.1rem, 3.55vw, 3.55rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.9rem, 3.8vw, 3.8rem);
  font-weight: 700;
}

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

p {
  color: var(--muted);
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 20;
  background: var(--ink);
  color: white;
  padding: 0.7rem 1rem;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 252, 254, 0.88);
  border-bottom: 1px solid rgba(217, 224, 232, 0.84);
  backdrop-filter: blur(14px);
}

.nav-shell {
  width: min(var(--max), calc(100% - 32px));
  min-height: 70px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  color: var(--ink);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 800;
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
  padding: 0.55rem 0.72rem;
  border-radius: var(--radius);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  background: var(--surface-alt);
}

.nav-toggle {
  display: none;
  appearance: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 0.55rem 0.8rem;
  font: inherit;
  font-weight: 800;
}

.hero-section,
.page-hero,
.content-band,
.split-band,
.contact-band,
.cv-layout {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.hero-section {
  padding: clamp(2.1rem, 4vw, 4.1rem) 0 clamp(2.4rem, 4vw, 3.8rem);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(430px, 0.78fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 4rem);
  border-bottom: 1px solid rgba(217, 224, 232, 0.86);
}

.hero-copy {
  display: grid;
  gap: 1.05rem;
}

.hero-kicker {
  margin-bottom: -0.25rem;
  color: var(--cobalt-strong);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

.lead {
  max-width: 780px;
  color: #384252;
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 0.68rem 0.95rem;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  box-shadow: 0 1px 0 rgba(16, 20, 25, 0.05);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.button:hover {
  color: var(--ink);
  border-color: #b9c4d1;
  box-shadow: 0 10px 22px rgba(17, 24, 39, 0.1);
  transform: translateY(-1px);
}

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

.button.text-button {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.compact-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
}

.compact-facts div,
.metric-list div,
.metric-strip div {
  border-left: 3px solid var(--line);
  padding-left: 0.85rem;
}

.compact-facts dt,
.metric-list dt,
.metric-strip span,
.section-label,
.card-index,
.cv-row > span,
.mini-publication span,
.pub-year {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.compact-facts dd,
.metric-list dd {
  margin: 0.18rem 0 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.3;
}

.hero-visual {
  display: grid;
  grid-template-columns: minmax(170px, 0.72fr) minmax(260px, 1fr);
  align-items: end;
  gap: 1rem;
}

.portrait-panel {
  margin: 0;
  width: 100%;
  justify-self: end;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
  aspect-ratio: 4 / 5;
}

.portrait-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.system-panel,
.data-card,
.work-card,
.writing-grid article,
.research-list article,
.timeline-list article,
.cv-aside,
.cv-section,
.publication-item,
.mini-publication {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 1px 0 rgba(16, 20, 25, 0.04);
}

.system-panel {
  width: 100%;
  justify-self: end;
  padding: 1rem;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    var(--terminal);
  background-size: 24px 24px;
  border-color: #1d2834;
  color: var(--terminal-text);
  box-shadow: 0 22px 56px rgba(0, 12, 28, 0.32);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: #91a6b8;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.panel-head span:last-child {
  color: #27e0bf;
}

.terminal-line {
  margin: 0.7rem 0 0;
  border: 1px solid var(--terminal-line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.035);
  color: var(--terminal-text);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.76rem;
  line-height: 1.45;
  padding: 0.52rem 0.6rem;
}

.terminal-line span {
  color: #27e0bf;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.35rem;
  margin: 0.75rem 0;
}

.signal-grid span {
  min-height: 24px;
  border: 1px solid var(--terminal-line);
  border-radius: 5px;
  background:
    linear-gradient(145deg, rgba(39, 224, 191, 0.5), transparent),
    linear-gradient(180deg, rgba(40, 87, 217, 0.42), transparent 62%);
}

.signal-grid span:nth-child(2n) {
  background:
    linear-gradient(145deg, rgba(190, 122, 16, 0.56), transparent),
    linear-gradient(180deg, rgba(40, 87, 217, 0.32), transparent 62%);
}

.metric-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 0;
}

.system-panel .metric-list div {
  border-left-color: rgba(39, 224, 191, 0.52);
}

.system-panel .metric-list dt {
  color: #91a6b8;
}

.system-panel .metric-list dd {
  color: white;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.system-panel a {
  color: #30e3c5;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 2rem;
}

.section-label {
  margin-bottom: 0.5rem;
  color: var(--cobalt-strong);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.content-band,
.split-band,
.contact-band,
.cv-layout {
  padding: clamp(3rem, 7vw, 6rem) 0;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.work-card,
.writing-grid article,
.data-card,
.research-list article,
.timeline-list article,
.cv-section {
  padding: 1.2rem;
}

.work-card {
  min-height: 285px;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  position: relative;
  overflow: hidden;
}

.work-card::before,
.writing-grid article::before,
.research-list article::before,
.timeline-list article::before,
.cv-section::before,
.mini-publication::before {
  content: "";
  display: block;
  width: 34px;
  height: 3px;
  margin-bottom: 0.7rem;
  background: linear-gradient(90deg, var(--cobalt-strong), var(--teal));
}

.work-card h3,
.writing-grid h3,
.research-list h3,
.timeline-list h3,
.cv-section h3,
.mini-publication h3,
.publication-item h2 {
  margin-bottom: 0.55rem;
}

.work-card p,
.writing-grid p,
.research-list p,
.timeline-list p,
.mini-publication p,
.publication-item p {
  margin-bottom: 0;
}

.work-card a,
.writing-grid a {
  margin-top: auto;
  font-weight: 800;
}

.card-index {
  color: var(--amber);
}

.split-band {
  display: grid;
  grid-template-columns: minmax(260px, 0.45fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.sticky-heading {
  position: sticky;
  top: 105px;
}

.sticky-heading h2 {
  font-size: clamp(1.55rem, 2.25vw, 2.45rem);
}

.research-list,
.timeline-list,
.featured-publications {
  display: grid;
  gap: 0.85rem;
}

.data-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.42fr) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.data-card {
  background:
    linear-gradient(180deg, rgba(40, 87, 217, 0.12), transparent 46%),
    var(--surface);
}

.mini-publication {
  padding: 1rem;
}

.mini-publication h3 {
  font-size: 1rem;
}

.accent-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.contact-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  border-top: 1px solid var(--line);
}

.contact-band h2 {
  max-width: 820px;
}

.site-footer {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  padding: 1.5rem 0 2.2rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
}

.site-footer div {
  display: grid;
  gap: 0.2rem;
}

.site-footer strong {
  color: var(--ink);
}

.page-hero {
  padding: clamp(3rem, 6vw, 5rem) 0 2rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 2rem;
}

.page-hero.compact h1 {
  font-size: clamp(2.7rem, 6vw, 5.1rem);
}

.copy-stack {
  display: grid;
  gap: 0.8rem;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(110px, 1fr));
  gap: 0.8rem;
  min-width: min(460px, 100%);
}

.metric-strip strong {
  display: block;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 2rem;
  line-height: 1;
}

.cv-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  align-items: start;
  gap: 1.4rem;
}

.cv-aside {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
}

.cv-aside img {
  border-radius: var(--radius);
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.cv-main {
  display: grid;
  gap: 1rem;
}

.cv-section h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.cv-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.cv-row:first-of-type {
  border-top: 0;
}

.plain-list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.plain-list li + li {
  margin-top: 0.7rem;
}

.tool-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 330px);
  gap: 1rem;
  align-items: start;
  margin-bottom: 1rem;
}

.archive-featured {
  padding-top: clamp(2rem, 4vw, 3.6rem);
  padding-bottom: 0;
}

.archive-featured-head {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(260px, 0.28fr);
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
}

.archive-featured-head h2 {
  margin-bottom: 0;
  font-size: clamp(1.55rem, 3vw, 2.65rem);
}

.archive-featured-head p {
  margin-bottom: 0;
}

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

.archive-featured-card {
  display: grid;
  align-content: start;
  min-height: 245px;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(15, 159, 143, 0.1), transparent 48%),
    rgba(255, 255, 255, 0.94);
  box-shadow: 0 1px 0 rgba(16, 20, 25, 0.04);
}

.archive-featured-card h3 {
  margin-bottom: 0.55rem;
  font-size: 1.02rem;
}

.archive-featured-card p {
  margin-bottom: 0.7rem;
  font-size: 0.94rem;
}

.featured-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}

.featured-meta span {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.22rem 0.42rem;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.filter-button {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 0.48rem 0.65rem;
  font: inherit;
  font-size: 0.84rem;
  font-weight: 800;
  cursor: pointer;
}

.filter-button.active {
  background: var(--cobalt-strong);
  border-color: var(--cobalt-strong);
  color: white;
}

.search-field {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.search-field input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
  padding: 0.7rem 0.8rem;
  font: inherit;
  text-transform: none;
}

.data-note {
  max-width: 920px;
  font-size: 0.95rem;
}

.publication-list {
  display: grid;
  gap: 0.75rem;
}

.publication-item {
  position: relative;
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem;
}

.publication-item.hidden {
  display: none;
}

.publication-item h2 {
  font-family: Inter, system-ui, sans-serif;
  font-size: clamp(1rem, 2vw, 1.18rem);
  line-height: 1.25;
}

.pub-meta,
.pub-source,
.pub-summary {
  font-size: 0.94rem;
}

.pub-source {
  color: #394456;
  font-weight: 700;
}

.pub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.7rem;
}

.pub-actions a,
.pub-award {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.3rem 0.48rem;
  background: var(--surface-alt);
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: none;
}

.pub-actions a:hover {
  border-color: rgba(0, 60, 255, 0.42);
  background: rgba(40, 87, 217, 0.1);
}

.pub-award {
  border-color: rgba(190, 122, 16, 0.45);
  background: rgba(190, 122, 16, 0.12);
}

@media (max-width: 980px) {
  .hero-section,
  .split-band,
  .data-grid,
  .contact-band,
  .page-hero,
  .cv-layout {
    grid-template-columns: 1fr;
  }

  .hero-section {
    min-height: auto;
  }

  .hero-visual {
    grid-template-columns: minmax(160px, 0.42fr) minmax(280px, 0.58fr);
  }

  .compact-facts,
  .work-grid,
  .writing-grid,
  .metric-strip,
  .archive-featured-grid,
  .archive-featured-head {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sticky-heading,
  .cv-aside {
    position: static;
  }

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

@media (max-width: 720px) {
  h1 {
    font-size: clamp(1.95rem, 9.5vw, 2.35rem);
  }

  .hero-section {
    padding-top: 2rem;
  }

  .lead {
    font-size: 1rem;
  }

  .hero-actions .button {
    flex: 1 1 calc(50% - 0.75rem);
  }

  .hero-actions .button.text-button {
    flex: 0 1 auto;
  }

  .compact-facts {
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    padding-bottom: 0.25rem;
    scroll-snap-type: x proximity;
  }

  .compact-facts div {
    flex: 0 0 min(235px, 82vw);
    scroll-snap-align: start;
  }

  .hero-visual {
    grid-template-columns: 112px minmax(0, 1fr);
    align-items: start;
  }

  .portrait-panel {
    justify-self: start;
    aspect-ratio: 1;
  }

  .system-panel {
    padding: 0.72rem;
  }

  .system-panel .metric-list {
    display: none;
  }

  .terminal-line {
    font-size: 0.62rem;
  }

  .hero-section .compact-facts,
  .hero-section .hero-visual {
    display: none;
  }

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

  .site-nav {
    position: fixed;
    inset: 70px 16px auto 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem;
    background: white;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  body.nav-open .site-nav {
    display: flex;
  }

  .site-nav a {
    padding: 0.85rem;
  }

  .compact-facts,
  .work-grid,
  .writing-grid,
  .metric-strip,
  .tool-row,
  .archive-featured-grid,
  .archive-featured-head,
  .metric-list {
    grid-template-columns: 1fr;
  }

  .publication-item,
  .cv-row {
    grid-template-columns: 1fr;
  }

  .pub-year {
    color: var(--cobalt);
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .hero-section,
  .page-hero,
  .content-band,
  .split-band,
  .contact-band,
  .cv-layout,
  .nav-shell,
  .site-footer {
    width: min(var(--max), calc(100% - 24px));
  }

  .button {
    width: 100%;
  }

  .hero-actions .button {
    width: auto;
    flex: 1 1 calc(50% - 0.75rem);
  }

  .hero-actions .button.text-button {
    flex-basis: 100%;
  }
}