:root {
  color-scheme: dark;
  --navy: #0a192f;
  --dark-navy: #020c1b;
  --light-navy: #112240;
  --lightest-navy: #233554;
  --slate: #8892b0;
  --light-slate: #a8b2d1;
  --lightest-slate: #ccd6f6;
  --white: #e6f1ff;
  --green: #64ffda;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--navy);
  color: var(--slate);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--green);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: var(--white);
}

button {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  transform: translateY(-160%);
  background: var(--green);
  color: var(--dark-navy);
}

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

.site-header {
  position: fixed;
  z-index: 10;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 0 clamp(22px, 6vw, 88px);
  transition: background-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  background: rgb(10 25 47 / 88%);
  box-shadow: 0 10px 30px -15px rgb(2 12 27 / 70%);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  color: var(--green);
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.brand-mark {
  width: 38px;
  height: 42px;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 32px);
}

.primary-nav a,
.resume-link {
  color: var(--lightest-slate);
  font-family: var(--mono);
  font-size: 12px;
}

.primary-nav a span {
  margin-right: 5px;
  color: var(--green);
}

.resume-link {
  padding: 8px 13px;
  border: 1px solid var(--green);
  border-radius: 4px;
  color: var(--green);
}

.hero {
  position: relative;
  display: flex;
  min-height: 100svh;
  align-items: center;
  overflow: hidden;
  padding: 112px max(24px, calc((100vw - 1000px) / 2));
  background: #000;
}

#particle-canvas,
.hero-vignette {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

#particle-canvas {
  z-index: 1;
}

.hero-vignette {
  z-index: 2;
  pointer-events: none;
  background:
    radial-gradient(ellipse 66% 64% at 38% 45%, rgb(0 0 0 / 80%) 0%, rgb(0 0 0 / 30%) 60%, transparent 100%),
    linear-gradient(to bottom, rgb(0 0 0 / 20%) 0%, transparent 55%, rgb(2 12 27 / 82%) 88%, var(--navy) 100%);
}

.hero-content {
  position: relative;
  z-index: 3;
  width: min(100%, 900px);
  margin: 0 auto;
  padding-bottom: 4vh;
}

.eyebrow,
.section-kicker,
.number,
.role-date,
.tag {
  color: var(--green);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.hero h1 {
  margin: 18px 0 0;
  color: var(--white);
  font-size: clamp(46px, 8vw, 82px);
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.hero h2 {
  margin: 12px 0 22px;
  color: var(--slate);
  font-size: clamp(27px, 5vw, 48px);
  line-height: 1.16;
  letter-spacing: -0.035em;
}

.hero-copy {
  max-width: 610px;
  margin: 0;
  color: var(--light-slate);
  font-size: clamp(16px, 2vw, 18px);
}

.hero-copy strong {
  color: var(--white);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 10px 17px;
  border: 1px solid var(--green);
  border-radius: 4px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 13px;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  background: rgb(100 255 218 / 10%);
  color: var(--green);
}

.button-secondary {
  border-color: var(--lightest-navy);
  color: var(--lightest-slate);
}

.scroll-cue {
  position: absolute;
  z-index: 3;
  bottom: 34px;
  left: 50%;
  color: var(--slate);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: translateX(-50%);
}

.scroll-cue::after {
  display: block;
  width: 1px;
  height: 34px;
  margin: 10px auto 0;
  background: var(--slate);
  content: "";
}

.side-rail {
  position: fixed;
  z-index: 4;
  bottom: 0;
  left: 34px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 17px;
}

.side-rail a {
  position: relative;
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  color: var(--light-slate);
  transition: color 150ms ease, transform 150ms ease;
}

.side-rail a svg {
  display: block;
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.side-rail a .research-icon {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.side-rail a::after {
  position: absolute;
  top: 50%;
  left: calc(100% + 12px);
  padding: 6px 9px;
  border-radius: 3px;
  background: var(--light-navy);
  color: var(--green);
  content: attr(data-tooltip);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0;
  opacity: 0;
  pointer-events: none;
  text-transform: none;
  transform: translate(-4px, -50%);
  transition: opacity 150ms ease, transform 150ms ease;
  white-space: nowrap;
}

.side-rail a:hover::after,
.side-rail a:focus-visible::after {
  opacity: 1;
  transform: translate(0, -50%);
}

.side-rail a:hover {
  color: var(--green);
  transform: translateY(-3px);
}

.side-rail::after {
  width: 1px;
  height: 90px;
  margin-top: 3px;
  background: var(--lightest-navy);
  content: "";
}

.main-content {
  width: min(100% - 48px, 1000px);
  margin: 0 auto;
}

.content-section {
  padding: 108px 0 50px;
  scroll-margin-top: 72px;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 30px;
  color: var(--white);
  font-size: clamp(23px, 4vw, 30px);
  letter-spacing: -0.025em;
}

.section-heading::after {
  width: min(280px, 30vw);
  height: 1px;
  background: var(--lightest-navy);
  content: "";
}

.section-kicker {
  flex: 0 0 auto;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px;
  gap: 46px;
  align-items: start;
}

.about-copy p {
  margin: 0 0 17px;
}

.profile-photo {
  width: 176px;
  height: 176px;
  border: 2px solid var(--green);
  border-radius: 5px;
  object-fit: cover;
  filter: saturate(0.7);
  box-shadow: 14px 14px 0 -7px var(--light-navy);
}

.skills {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px 24px;
  margin: 21px 0 0;
  padding: 0;
  list-style: none;
}

.skills li {
  position: relative;
  padding-left: 17px;
  color: var(--light-slate);
  font-family: var(--mono);
  font-size: 12px;
}

.skills li::before {
  position: absolute;
  left: 0;
  color: var(--green);
  content: "▹";
}

.experience-layout {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 30px;
}

.experience-tabs {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  border-left: 1px solid var(--lightest-navy);
}

.experience-tab,
.filter-button {
  padding: 12px 16px;
  border: 0;
  background: transparent;
  color: var(--slate);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  text-align: left;
}

.experience-tab[aria-selected="true"] {
  border-left: 2px solid var(--green);
  background: var(--light-navy);
  color: var(--green);
}

.experience-panel {
  min-width: 0;
  padding: 2px 0;
}

.experience-panel[hidden],
.project-card[hidden] {
  display: none;
}

.experience-panel h3 {
  margin: 0 0 4px;
  color: var(--white);
  font-size: 20px;
}

.experience-panel h3 a {
  color: var(--green);
}

.experience-panel h4 {
  margin: 25px 0 12px;
  padding-top: 18px;
  border-top: 1px solid var(--lightest-navy);
  color: var(--lightest-slate);
  font-size: 17px;
  font-weight: 500;
}

.experience-panel h4:first-of-type {
  margin-top: 20px;
}

.role-date {
  margin: 0 0 15px;
  font-size: 11px;
}

.experience-panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.experience-panel li {
  position: relative;
  margin: 0 0 12px;
  padding-left: 22px;
}

.experience-panel li::before {
  position: absolute;
  top: 1px;
  left: 0;
  color: var(--green);
  content: "▹";
}

.work-intro {
  max-width: 650px;
  margin: -12px 0 28px;
}

.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 22px;
}

.filter-button {
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 3px;
  text-align: center;
}

.filter-button[aria-pressed="true"] {
  border-color: var(--green);
  color: var(--green);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
}

.project-card {
  display: flex;
  min-height: 232px;
  flex-direction: column;
  padding: 24px;
  border-radius: 4px;
  background: var(--light-navy);
  transition: transform 160ms ease, background-color 160ms ease;
}

.project-card.featured-project {
  grid-column: 1 / -1;
  min-height: 0;
  padding: clamp(22px, 4vw, 34px);
  border-top: 2px solid var(--green);
}

.featured-summary {
  max-width: 720px;
  font-size: 15px !important;
}

.case-study-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 18px 26px;
  margin-top: 24px;
}

.case-study-grid h4 {
  margin: 0 0 8px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
}

.case-study-grid p,
.case-study-grid li {
  font-size: 13px;
  line-height: 1.65;
}

.case-study-outcomes ul {
  margin: 0;
  padding-left: 17px;
}

.case-study-outcomes li {
  margin-bottom: 7px;
}

.project-card:hover {
  transform: translateY(-4px);
  background: #162d50;
}

.project-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--green);
}

.project-icon {
  font-family: var(--mono);
  font-size: 25px;
}

.project-card h3 {
  margin: 15px 0 8px;
  color: var(--white);
  font-size: 18px;
  line-height: 1.35;
}

.project-card p {
  margin: 0;
  font-size: 14px;
}

.project-card .tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-top: auto;
  padding-top: 18px;
}

.tag {
  color: var(--light-slate);
  font-size: 10px;
}

.project-card a {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 12px;
}

.archive-link-row {
  margin: 28px 0 0;
  text-align: center;
}

.archive-main {
  width: min(100% - 48px, 1000px);
  min-height: calc(100vh - 90px);
  margin: 0 auto;
  padding: 132px 0 80px;
}

.archive-main .section-heading {
  margin-bottom: 12px;
}

.archive-intro {
  max-width: 680px;
  margin: 0 0 32px;
}

.archive-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.archive-grid .project-card {
  min-height: 270px;
}

.archive-grid .project-card h2 {
  margin: 15px 0 8px;
  color: var(--white);
  font-size: 18px;
  line-height: 1.35;
}

.archive-grid .archive-contributors {
  margin-top: 10px;
  font-size: 12px;
}

.archive-back-link {
  margin: 32px 0 0;
  font-family: var(--mono);
  font-size: 13px;
}

.credentials-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.credential-card {
  padding: 22px;
  border-left: 2px solid var(--green);
  background: var(--light-navy);
}

.credential-card h3 {
  margin: 0 0 14px;
  color: var(--white);
  font-size: 17px;
}

.credential-card p,
.credential-card ul {
  margin: 0 0 11px;
  font-size: 14px;
}

.credential-card ul {
  padding-left: 18px;
}

.credential-card li {
  margin-bottom: 7px;
}

.credential-date {
  display: block;
  color: var(--green);
  font-family: var(--mono);
  font-size: 11px;
}

.contact-section {
  max-width: 650px;
  margin: 0 auto;
  padding: 120px 0 95px;
  text-align: center;
}

.contact-section .section-heading {
  justify-content: center;
}

.contact-section .section-heading::before,
.contact-section .section-heading::after {
  width: 0;
}

.contact-section h2 {
  margin: 8px 0 14px;
  color: var(--white);
  font-size: clamp(36px, 6vw, 52px);
  letter-spacing: -0.04em;
}

.contact-section p {
  margin: 0 auto 26px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.copy-status {
  min-height: 24px;
  margin-top: 12px !important;
  color: var(--green);
  font-family: var(--mono);
  font-size: 12px;
}

.site-footer {
  padding: 20px 24px 28px;
  color: var(--slate);
  font-family: var(--mono);
  font-size: 11px;
  text-align: center;
}

.site-footer p {
  margin: 5px 0;
}

@media (min-width: 1200px) {
  .hero {
    padding-right: max(170px, calc((100vw - 1000px) / 2));
    padding-left: max(170px, calc((100vw - 1000px) / 2));
  }
}

@media (max-width: 1000px) {
  .side-rail {
    display: none;
  }
}

@media (max-width: 900px) {
  .primary-nav a {
    font-size: 0;
  }

  .primary-nav a span {
    font-size: 12px;
  }

  .archive-nav a {
    font-size: 12px;
  }
}

@media (max-width: 700px) {
  html {
    scroll-padding-top: 72px;
  }

  .site-header {
    min-height: 66px;
    padding: 0 18px;
  }

  .brand {
    gap: 8px;
    font-size: 12px;
  }

  .brand-mark {
    width: 32px;
  }

  .primary-nav {
    gap: 12px;
  }

  .primary-nav a {
    font-size: 0;
  }

  .primary-nav a span {
    font-size: 12px;
  }

  .resume-link {
    padding: 7px 9px;
    font-size: 11px;
  }

  .hero {
    min-height: 100svh;
    padding: 100px 25px 115px;
  }

  .hero-vignette {
    background:
      radial-gradient(ellipse 95% 70% at 40% 43%, rgb(0 0 0 / 82%) 0%, rgb(0 0 0 / 35%) 66%, transparent 100%),
      linear-gradient(to bottom, rgb(0 0 0 / 15%) 0%, transparent 50%, rgb(2 12 27 / 80%) 88%, var(--navy) 100%);
  }

  .main-content {
    width: min(100% - 40px, 600px);
  }

  .content-section {
    padding-top: 84px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .profile-photo {
    grid-row: 1;
    width: 132px;
    height: 132px;
  }

  .experience-layout {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .experience-tabs {
    flex-direction: row;
    overflow-x: auto;
    border-bottom: 1px solid var(--lightest-navy);
    border-left: 0;
  }

  .experience-tab {
    flex: 0 0 auto;
    padding: 11px 12px;
  }

  .experience-tab[aria-selected="true"] {
    border-bottom: 2px solid var(--green);
    border-left: 0;
  }

  .project-grid,
  .archive-grid,
  .credentials-grid {
    grid-template-columns: 1fr;
  }

  .archive-main {
    width: min(100% - 40px, 600px);
    padding-top: 106px;
  }

  .project-card.featured-project {
    grid-column: auto;
  }

  .case-study-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .project-card {
    min-height: 210px;
  }

  .archive-grid .project-card {
    min-height: 0;
  }

  .contact-section {
    padding: 90px 0 75px;
  }
}

@media (max-width: 400px) {
  .primary-nav {
    gap: 8px;
  }

  .primary-nav a:nth-child(2) {
    display: none;
  }

  .skills {
    grid-template-columns: 1fr;
  }
}

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