:root {
  color-scheme: dark;
  --bg: #05060a;
  --bg-alt: #0e111a;
  --primary: #61dafb;
  --accent: #55f0a6;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.08);
  --text: #f6f8ff;
  --text-muted: rgba(246, 248, 255, 0.7);
  --max-width: 1140px;
  --radius: 18px;
  --transition: 220ms ease;
  --font-body: "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Fira Code", "Ubuntu Mono", "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
    monospace;
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition), transform var(--transition);
}

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

a[aria-disabled="true"] {
  color: var(--text-muted);
  pointer-events: none;
}

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

.container {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0 2rem;
  gap: 1rem;
}

.nav__brand {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav__menu {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.nav__menu a {
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.25rem 0;
}

.nav__menu a:hover,
.nav__menu a:focus-visible,
.nav__menu a[data-active="true"] {
  color: var(--primary);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 0.25rem;
  background: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.5rem;
  cursor: pointer;
}

.nav__toggle-bar {
  width: 1.5rem;
  height: 2px;
  background-color: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 2rem 0 6rem;
  background:
    radial-gradient(circle at top right, rgba(97, 218, 251, 0.25), transparent 45%),
    radial-gradient(circle at bottom left, rgba(85, 240, 166, 0.2), transparent 50%),
    var(--bg);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 6, 10, 0.05) 0%, rgba(5, 6, 10, 0.92) 80%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__text {
  max-width: 680px;
  padding: 2rem 0 0;
}

.hero__eyebrow {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(97, 218, 251, 0.35);
  color: var(--primary);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 3.6rem);
  margin-bottom: 1rem;
  line-height: 1.15;
}

.hero__lead {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #05060a;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(97, 218, 251, 0.25);
  color: #05060a;
}

.button--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.button--ghost:hover,
.button--ghost:focus-visible {
  color: var(--primary);
  box-shadow: none;
}

.section {
  padding: 4.5rem 0;
}

.section--alt {
  background: var(--bg-alt);
}

.section__title {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.section__description {
  max-width: 720px;
  color: var(--text-muted);
  font-size: 1rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.card {
  padding: 1.75rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform var(--transition), border-color var(--transition);
}

.card:hover,
.card:focus-visible,
.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(97, 218, 251, 0.45);
}

.project-card {
  margin-bottom: 2.5rem;
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(145deg, rgba(97, 218, 251, 0.05), rgba(85, 240, 166, 0.05));
  transition: transform var(--transition), border-color var(--transition);
}

.project-card:last-of-type {
  margin-bottom: 0;
}

.project-card__header {
  display: flex;
  gap: 1rem;
  align-items: start;
  margin-bottom: 1rem;
}

.project-card__icon {
  font-size: 2rem;
  line-height: 1;
}

.project-card__meta {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0.35rem 0 0;
}

.project-card__summary {
  margin-bottom: 1rem;
  color: var(--text);
  font-weight: 500;
}

.project-card__list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-muted);
}

.project-card__list li {
  margin-bottom: 0.65rem;
}

.project-card__outcomes {
  margin-top: 1rem;
  color: var(--text-muted);
}

.project-card__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.project-catalog {
  display: grid;
  gap: 2rem;
}

.projects-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 2.5rem;
}

.filter-chip {
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}

.filter-chip[data-active="true"],
.filter-chip:hover,
.filter-chip:focus-visible {
  color: var(--primary);
  border-color: rgba(97, 218, 251, 0.55);
  transform: translateY(-2px);
}

.split {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  align-items: start;
}

.stack-card {
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}

.stack-card__group h4 {
  margin-bottom: 0.6rem;
}

.stack-card__code {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 0.55rem 0.75rem;
  border-radius: 0.75rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 0.75rem;
}

.stack-card__code:last-of-type {
  margin-bottom: 0;
}

.output-card {
  padding: 2rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
}

.output-card ul {
  padding-left: 1.1rem;
  margin: 0;
  color: var(--text-muted);
}

.output-card li {
  margin-bottom: 0.65rem;
}

.timeline {
  position: relative;
  display: grid;
  gap: 1.75rem;
  padding-left: 1.5rem;
  border-left: 2px solid rgba(97, 218, 251, 0.4);
}

.timeline::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  bottom: 0;
  border-left: 2px solid rgba(97, 218, 251, 0.15);
}

.timeline__item {
  position: relative;
  padding-left: 1rem;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -1.58rem;
  top: 0.35rem;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  border: 2px solid var(--bg);
  background: var(--primary);
}

.timeline__item--highlight::before {
  background: var(--accent);
}

.timeline__date {
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.timeline__content p {
  color: var(--text-muted);
  margin: 0.15rem 0 0;
}

.contact {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  align-items: start;
}

.contact__links {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--text-muted);
}

.contact__links li {
  margin-bottom: 0.9rem;
}

.contact__cta {
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(97, 218, 251, 0.08), rgba(85, 240, 166, 0.1));
}

.contact__cta p {
  margin-bottom: 1.5rem;
  color: var(--text);
  font-weight: 500;
}

.footer {
  padding: 1.75rem 0;
  border-top: 1px solid rgba(97, 218, 251, 0.1);
  background: rgba(5, 6, 10, 0.95);
}

.footer__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer a {
  color: var(--text-muted);
}

.footer a:hover,
.footer a:focus-visible {
  color: var(--primary);
}

.page-hero {
  position: relative;
  padding: 6rem 0 4rem;
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(97, 218, 251, 0.18), transparent 45%),
    radial-gradient(circle at bottom left, rgba(85, 240, 166, 0.18), transparent 55%),
    var(--bg);
}

.page-hero__overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 6, 10, 0.1) 0%, rgba(5, 6, 10, 0.92) 80%);
}

.page-hero__headline {
  max-width: 760px;
}

.page-hero__eyebrow {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(97, 218, 251, 0.35);
  color: var(--primary);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.page-hero__title {
  font-size: clamp(2.4rem, 6vw, 3.3rem);
  margin: 0 0 1rem;
}

.page-hero__lead {
  max-width: 640px;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.page-section {
  padding: 4rem 0;
}

.page-section--alt {
  background-color: var(--bg-alt);
}

.page-section__header {
  margin-bottom: 2rem;
}

.page-section__header h2 {
  margin: 0;
  font-size: 1.9rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid rgba(97, 218, 251, 0.3);
  color: var(--text-muted);
}

.tag--accent {
  border-color: rgba(85, 240, 166, 0.4);
  color: var(--accent);
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: rgba(97, 218, 251, 0.12);
  color: var(--primary);
  font-size: 0.8rem;
}

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

.list-tight li {
  margin-bottom: 0.35rem;
}

.metric-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.metric {
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}

.metric__value {
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
}

.metric__label {
  margin-top: 0.35rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.summary-card {
  padding: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.summary-card__title {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.summary-card__body {
  margin: 0;
  color: var(--text-muted);
}

.publication-list {
  display: grid;
  gap: 1.75rem;
}

.publication-card {
  display: grid;
  gap: 1.5rem;
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}

.publication-card__meta {
  margin: 0.35rem 0 0.75rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.publication-card__summary {
  margin: 0;
  color: var(--text-muted);
}

.publication-card__actions {
  display: flex;
  align-items: center;
}

.resource-list {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.resource-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}

.resource-card h3 {
  margin: 0 0 0.4rem;
}

.projects-filter + .project-catalog {
  margin-top: 2.5rem;
}

@media (min-width: 720px) {
  .publication-card {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .publication-card__actions {
    justify-content: flex-end;
  }
}

.table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  color: var(--text-muted);
}

.table thead {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  color: var(--text);
}

.table th,
.table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  text-align: left;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(97, 218, 251, 0.12);
  color: var(--primary);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.callout {
  position: relative;
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid rgba(85, 240, 166, 0.35);
  background: rgba(85, 240, 166, 0.08);
  color: var(--accent);
  font-weight: 500;
}

.callout__title {
  margin: 0 0 0.5rem;
}

.callout__body {
  margin: 0;
  color: var(--text);
  font-weight: 400;
}

.is-hidden {
  display: none !important;
}

@media (max-width: 860px) {
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: absolute;
    inset: 4.5rem 1.5rem auto;
    padding: 1.5rem;
    flex-direction: column;
    align-items: stretch;
    background: rgba(5, 6, 10, 0.95);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
    transform: scale(0.98);
    transform-origin: top right;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }

  .nav__menu a {
    padding: 0.45rem 0;
  }

  .nav__menu[data-open="true"] {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
  }
}

@media (max-width: 720px) {
  .hero {
    padding-bottom: 4.5rem;
  }

  .hero__cta {
    justify-content: stretch;
  }

  .project-card {
    padding: 1.75rem;
  }

  .stack-card,
  .output-card {
    padding: 1.75rem;
  }
}

@media (max-width: 540px) {
  .container {
    padding: 0 1.1rem;
  }

  .nav {
    padding-bottom: 1.5rem;
  }

  .hero__eyebrow {
    margin-bottom: 1rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .project-card__header {
    flex-direction: column;
  }

  .resource-card {
    flex-direction: column;
    align-items: flex-start;
  }
}