:root {
  color-scheme: dark;
  --bg: #0b0d10;
  --surface: #151922;
  --surface-light: #1b202b;
  --text: #f3f4f6;
  --muted: #a1a8b3;
  --border: #2a303a;
  --accent: #7c9cff;
  --accent-strong: #9bb2ff;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(180deg, rgba(124, 156, 255, 0.06), transparent 390px),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: inherit;
}

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

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

h1 {
  max-width: 900px;
  margin-bottom: 22px;
  font-size: clamp(2.35rem, 6.2vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.05rem;
  line-height: 1.35;
}

main {
  overflow: hidden;
}

body > main.container {
  padding: 72px 0;
}

section {
  scroll-margin-top: 96px;
}

.container {
  width: min(100% - 32px, var(--max));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 20;
  transform: translateY(-140%);
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  transition: transform 160ms ease;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(42, 48, 58, 0.85);
  background-color: #000;
}

.header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 140px;
  max-width: 52vw;
  height: auto;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform 160ms ease, opacity 160ms ease;
}

.nav-toggle span + span {
  margin-top: 5px;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-7px) rotate(-45deg);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.94rem;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease;
}

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

@media (max-width: 760px) {
  .header-inner {
    position: relative;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 0;
  }

  .nav-toggle {
    display: block;
    margin-left: auto;
  }

  .nav {
    display: none;
    width: 100%;
    padding: 8px 0 4px;
    border-top: 1px solid var(--border);
  }

  .nav.is-open {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px;
  }

  .nav a {
    width: 100%;
    padding: 0 10px;
  }
}

.hero {
  padding: 86px 0 68px;
}

.hero-grid,
.content-grid,
.profile-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.6fr);
  gap: 42px;
  align-items: start;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.lead {
  max-width: 820px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 1.12rem;
}

.actions,
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.link-row {
  margin-top: 24px;
}

.button,
.text-link,
.contact-link,
.link-row a {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-weight: 650;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #08101f;
}

.button:hover,
.text-link:hover,
.contact-link:hover,
.link-row a:hover {
  border-color: var(--accent-strong);
  background: var(--surface-light);
  color: var(--text);
}

.button.primary:hover {
  background: var(--accent-strong);
  color: #08101f;
}

.legal-line {
  margin: 10px 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  padding: 68px 0;
  border-top: 1px solid rgba(42, 48, 58, 0.72);
}
.section-projects {
  padding: 68px 0 0;
  border-top: 1px solid rgba(42, 48, 58, 0.72);
}

.project-tab-panels {
  padding: 0 0 38px
}

.section-intro {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-intro p,
.content-block p,
.content p,
.content li {
  color: var(--muted);
}

.about-grid,
.contact-grid,
.mobile-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.55fr);
  gap: 40px;
  align-items: start;
}

.content-block {
  max-width: 780px;
}

.services-grid,
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

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

.project-tabs {
  position: relative;
}

.project-tab-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
}

.project-tab {
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.project-tab:hover,
.project-tab:focus-visible {
  border-color: var(--accent-strong);
  color: var(--text);
}

.project-tab:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.project-tab.is-active {
  border-color: rgba(255, 255, 255, 0.58);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.project-tab-panel {
  animation: tab-panel-in 220ms ease both;
}

.project-tab-progress {
  height: 1px;
  margin-top: 18px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
}

.project-tab-progress span {
  display: block;
  width: 100%;
  height: 1px;
  background: rgb(255 255 255 / 0.51);
  transform-origin: left center;
  animation: project-tab-progress 7000ms linear infinite;
}

@keyframes project-tab-progress {
  from {
    transform: scaleX(0);
  }

  to {
    transform: scaleX(1);
  }
}

@keyframes tab-panel-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .project-tab-panel,
  .project-tab-progress span {
    animation: none;
  }

  .project-tab-progress span {
    transform: scaleX(1);
  }
}

.service-card,
.project-card,
.card,
.panel,
.legal-card,
.profile-card,
.policy {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.service-card,
.project-card,
.card,
.legal-card,
.profile-card,
.policy {
  padding: 22px;
}

.service-card {
  min-height: 238px;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.project-card {
  display: block;
  color: var(--text);
  text-decoration: none;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.service-card:hover,
.project-card:hover {
  border-color: rgba(124, 156, 255, 0.72);
  background: var(--surface-light);
  transform: translateY(-2px);
}

.service-card p,
.project-card p,
.card p,
.featured-copy p,
.featured-scope p,
.policy p,
.policy li {
  color: var(--muted);
}

.service-card p,
.card p,
.featured-scope p {
  margin-bottom: 0;
}

.card-label {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-meta,
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.project-meta li,
.meta li {
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.82rem;
}

.contact-links {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.contact-link {
  width: fit-content;
}

.featured-case {
  border: 1px solid rgba(124, 156, 255, 0.38);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(124, 156, 255, 0.09), transparent 46%),
    var(--surface);
}

.featured-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.7fr);
  gap: 34px;
  padding: 30px;
}

.featured-stats,
.scale-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.featured-stat,
.scale-item {
  padding: 16px;
  border: 1px solid rgba(124, 156, 255, 0.32);
  border-radius: 8px;
  background: rgba(124, 156, 255, 0.06);
}

.featured-stat strong,
.scale-item strong {
  display: block;
  color: var(--text);
  font-size: 1.45rem;
  line-height: 1.1;
}

.featured-stat span,
.scale-item span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.86rem;
}

.featured-scope {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 0 30px 30px;
}

.featured-scope article {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(11, 13, 16, 0.28);
}

.capability-list,
.list-panel {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.capability-list li,
.list-panel li {
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
}

.capability-list li {
  display: flex;
  align-items: center;
  gap: 12px;
}

.capability-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border: 1px solid var(--accent);
  border-radius: 2px;
}

.panel,
.legal-card,
.profile-card {
  padding: 22px;
}

.panel dl,
.legal-card dl,
.profile-card dl {
  display: grid;
  row-gap: 2px;
  margin: 0;
}

.panel dt,
.legal-card dt,
.profile-card dt {
  color: var(--muted);
  font-size: 0.86rem;
}

.panel dd,
.legal-card dd,
.profile-card dd {
  margin: 0 0 13px;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.system-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(21, 25, 34, 0.76);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
}

.panel-body {
  padding: 18px;
}

.metric {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(42, 48, 58, 0.75);
}

.metric:last-child {
  border-bottom: 0;
}

.metric span {
  color: var(--muted);
  font-size: 0.86rem;
}

.metric strong {
  font-size: 0.96rem;
  font-weight: 650;
}

.policy {
  max-width: 880px;
}

.section-experiments {
  background: #0b0d11;
  border-block: 1px solid var(--border);
}

.experiments-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 40px;
  align-items: center;
}

.experiments-copy {
  max-width: 680px;
}

.experiment-preview {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #11151d;
}

.experiment-preview h3 {
  margin: 10px 0 12px;
  font-size: 1.5rem;
}

.experiment-preview p {
  color: var(--muted);
}

.experiment-facts {
  margin: 24px 0;
  border-block: 1px solid var(--border);
}

.experiment-facts div {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  padding: 10px 0;
}

.experiment-facts div + div {
  border-top: 1px solid var(--border);
}

.experiment-facts dt {
  color: var(--muted);
}

.experiment-facts dd {
  margin: 0;
  font-weight: 650;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.footer-inner p,
.site-footer p {
  margin: 0;
}

.site-footer p + p {
  margin-top: 8px;
}

@media (max-width: 920px) {
  .hero-grid,
  .content-grid,
  .profile-grid,
  .about-grid,
  .mobile-section,
  .contact-grid,
  .project-grid,
  .featured-inner {
    grid-template-columns: 1fr;
  }

  .experiments-feature {
    grid-template-columns: 1fr;
  }

  .services-grid,
  .card-grid,
  .featured-scope {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 24px, var(--max));
  }

  .header-inner {
    min-height: auto;
    flex-direction: row;
    align-items: center;
  }

  .nav {
    width: 100%;
  }

  .nav a {
    padding: 0 8px;
    font-size: 0.9rem;
  }

  .hero {
    padding: 58px 0 46px;
  }

  body > main.container {
    padding: 52px 0;
  }

  .section {
    padding: 54px 0;
  }

  .services-grid,
  .card-grid,
  .featured-stats,
  .featured-scope,
  .scale-grid {
    grid-template-columns: 1fr;
  }

  .featured-inner {
    padding: 22px;
  }

  .featured-scope {
    padding: 0 22px 22px;
  }

  .service-card {
    min-height: auto;
  }

  .metric {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .actions,
  .button,
  .text-link,
  .link-row,
  .link-row a {
    width: 100%;
  }

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

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