:root {
  --bg: #0b0b0c;
  --bg-elevated: #121214;
  --border: #2a2a2e;
  --text: #f4f4f5;
  --text-muted: #a1a1aa;
  --accent: #8b5cf6;
  --accent-hover: #a78bfa;
  --focus: #22d3ee;
  --font-sans: "Instrument Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 10px;
  --shell: 74rem;
  --space-section: clamp(4rem, 10vw, 7rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
  letter-spacing: -0.02em;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--bg);
  z-index: 1000;
}

.skip-link:focus {
  left: 0;
}

.shell {
  width: min(100% - 2rem, var(--shell));
  margin-inline: auto;
}

.section {
  padding-block: var(--space-section);
}

.section--tight {
  padding-block: clamp(3rem, 8vw, 5rem);
}

.section-label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  margin: 0 0 2rem;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-head .section-label {
  margin-bottom: 0;
}

.link-arrow {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: lowercase;
}

.link-arrow::after {
  content: "_";
}

.header-primary {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.header-primary__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  min-height: 4rem;
}

.logo {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.12em;
  color: var(--text);
}

.logo:hover {
  color: var(--accent);
}

.nav-primary {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.25rem;
}

.nav-primary a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

.nav-primary a:hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  cursor: pointer;
}

.header-primary__cta {
  justify-self: end;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--text-muted);
  background: var(--bg-elevated);
}

.btn--primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

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

.btn--wide {
  width: 100%;
  max-width: 16rem;
  margin-inline: auto;
  margin-top: 2rem;
}

.btn--app {
  white-space: nowrap;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.85rem 1.5rem;
}

.btn--app:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-main {
  padding-block: clamp(4rem, 12vw, 8rem);
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  color: var(--accent);
  margin: 0 0 1rem;
  font-size: 0.85rem;
}

.hero-main__title {
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 1.5rem;
  max-width: 16ch;
}

.hero-main__break::before {
  content: "\A";
  white-space: pre;
}

.hero-main__lead {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-muted);
  max-width: 42ch;
  margin: 0 0 2rem;
}

.hero-main__meta {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.repo-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
}

.repo-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.15s ease;
}

.repo-card:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
}

.repo-card__name {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.repo-card__name a {
  color: inherit;
}

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

.repo-card__desc {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
  flex: 1;
}

.repo-card__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pill {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  text-transform: uppercase;
  font-size: 0.7rem;
}

.culture-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.culture-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: var(--bg-elevated);
}

.culture-card__type {
  font-size: 0.78rem;
  color: var(--accent);
  margin: 0 0 1rem;
  line-height: 1.45;
  word-break: break-word;
}

.culture-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.process-pair {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
}

.process-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  background: var(--bg-elevated);
}

.process-panel__head {
  margin-bottom: 1rem;
}

.process-panel__idx {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.process-panel__title {
  margin: 0;
  font-size: 1.35rem;
}

.process-panel__intro {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
}

.process-panel__sub {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.process-panel ul,
.process-panel ol {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.process-panel__block + .process-panel__block {
  margin-top: 1.25rem;
}

.process-steps {
  list-style: none;
  padding: 0;
  counter-reset: step;
}

.process-steps li {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}

.process-steps li span {
  color: var(--accent);
  min-width: 2rem;
}

.blog-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
}

.blog-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  background: var(--bg-elevated);
}

.blog-card__meta {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.blog-card__title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  line-height: 1.35;
}

.blog-card__title a {
  color: inherit;
}

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

.blog-card__excerpt {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.project-row {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
}

.project-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: var(--bg-elevated);
}

.project-card__name {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

.project-card__tag {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.promo-block {
  border-block: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg) 100%);
}

.promo-block__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.promo-block__text {
  margin: 1rem 0 0;
  color: var(--text-muted);
  max-width: 40ch;
}

.promo-block__text em {
  color: var(--text);
  font-style: normal;
  font-weight: 600;
}

.team-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
}

.team-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: var(--bg-elevated);
}

.team-card__dept {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
}

.team-card__bio {
  margin: 0 0 1.25rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.team-card__stats {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.team-card__stats div {
  display: grid;
  gap: 0.25rem;
  margin-top: 0.75rem;
}

.team-card__stats dt {
  font-weight: 500;
  color: var(--text);
}

.team-card__stats dd {
  margin: 0;
}

.review-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
}

.review-card {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: var(--bg-elevated);
}

.review-card p {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.review-card footer {
  font-size: 0.85rem;
  color: var(--text);
}

.review-card cite {
  font-style: normal;
  font-weight: 600;
}

.review-card--collapsed {
  display: none;
}

.review-grid.is-expanded .review-card--collapsed {
  display: block;
}

.cta-primary {
  border-top: 1px solid var(--border);
}

.cta-primary__inner {
  max-width: 40rem;
}

.cta-primary__lede {
  color: var(--text-muted);
  margin: 0 0 2rem;
}

.cta-primary__lede em {
  color: var(--text);
  font-style: normal;
}

.contact-form__fields {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(2, 1fr);
  margin-bottom: 1.5rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field--full {
  grid-column: 1 / -1;
}

.field__label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.field__input {
  font: inherit;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.field__textarea {
  resize: vertical;
  min-height: 6rem;
}

.field__hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.field--checkbox {
  flex-direction: row;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.field--checkbox input {
  margin-top: 0.35rem;
  accent-color: var(--accent);
}

.contact-form__success {
  margin-top: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: radial-gradient(circle at top right, color-mix(in srgb, var(--accent) 18%, transparent), transparent);
}

.contact-form__great {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  color: var(--accent);
}

.footer-standard {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 0;
}

.footer-standard__grid {
  display: grid;
  gap: 2rem 3rem;
  grid-template-columns: minmax(12rem, 1.2fr) repeat(2, minmax(10rem, 1fr));
  align-items: start;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
}

.footer-standard__meta {
  max-width: 28rem;
}

.footer-standard__logo {
  display: inline-block;
  margin-bottom: 1rem;
}

.footer-standard__disclaimer {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.footer-quicklinks__heading {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
}

.footer-quicklinks__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.footer-quicklinks__list a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

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

.footer-standard__bottom {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 1.5rem 0 3rem;
}

.footer-standard__bottom p {
  margin: 0;
}

@media (max-width: 768px) {
  .footer-standard__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-quicklinks__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .header-primary__inner {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
  }

  .logo {
    grid-column: 1;
  }

  .nav-toggle {
    display: inline-flex;
    grid-column: 2;
    grid-row: 1;
  }

  .header-primary__cta {
    grid-column: 1 / -1;
    justify-self: stretch;
    text-align: center;
  }

  .nav-primary {
    display: none;
    flex-direction: column;
    grid-column: 1 / -1;
    padding: 1rem 0;
    border-top: 1px solid var(--border);
  }

  .nav-primary.is-open {
    display: flex;
  }
}

@media (max-width: 640px) {
  .contact-form__fields {
    grid-template-columns: 1fr;
  }

  .hero-main__title {
    max-width: none;
  }
}