:root {
  --ink: #0b1020;
  --ink-soft: #3d465e;
  --paper: #f5f7fb;
  --white: #ffffff;
  --line: #d9deea;
  --blue: #165dff;
  --blue-dark: #0d48d8;
  --cyan: #65e6ff;
  --lime: #d6ff4b;
  --max: 1200px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  color-scheme: light;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 3px solid var(--lime);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--white);
  color: var(--ink);
  font-weight: 700;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

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

.shell {
  width: min(100%, var(--max));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  width: 100%;
  color: var(--white);
}

.header-dark {
  position: relative;
  background: var(--ink);
}

.header-inner {
  min-height: 5.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  color: var(--white);
  text-decoration: none;
  letter-spacing: -0.04em;
  line-height: 1;
}

.brand-mark {
  color: var(--cyan);
  font-size: 1.45rem;
  font-weight: 850;
}

.brand-word {
  font-size: 1rem;
  font-weight: 550;
  letter-spacing: 0.16em;
}

.main-nav,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2rem);
}

.main-nav a,
.back-link {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.main-nav a:hover,
.back-link:hover {
  color: var(--white);
}

.main-nav .nav-contact {
  padding: 0.55rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.38);
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, transparent 0, transparent calc(50% - 1px), rgba(255, 255, 255, 0.075) 50%, transparent calc(50% + 1px)),
    radial-gradient(circle at 82% 28%, rgba(22, 93, 255, 0.32), transparent 32rem),
    var(--ink);
  color: var(--white);
}

.hero::after {
  content: "";
  position: absolute;
  right: -8rem;
  bottom: -14rem;
  width: 30rem;
  height: 30rem;
  border: 1px solid rgba(101, 230, 255, 0.22);
  border-radius: 50%;
}

.hero-grid {
  min-height: min(850px, 100svh);
  padding-top: 9.5rem;
  padding-bottom: 5.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(20rem, 0.88fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 7.5rem);
}

.eyebrow,
.kicker {
  margin: 0 0 1.5rem;
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--cyan);
}

.eyebrow span {
  width: 2.1rem;
  height: 2px;
  background: currentColor;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(3.2rem, 7.3vw, 6.6rem);
  font-weight: 720;
  letter-spacing: -0.068em;
  line-height: 0.98;
}

.hero-intro {
  max-width: 640px;
  margin: 2rem 0 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: clamp(1.1rem, 1.5vw, 1.28rem);
  line-height: 1.6;
}

.hero-actions {
  margin-top: 2.4rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.35rem;
}

.button {
  display: inline-flex;
  min-height: 3.25rem;
  padding: 0.8rem 1.15rem;
  align-items: center;
  justify-content: center;
  font-weight: 750;
  text-decoration: none;
}

.button-primary {
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08) inset;
}

.button-primary:hover {
  background: var(--blue-dark);
}

.text-link {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration-color: rgba(255, 255, 255, 0.35);
  text-underline-offset: 0.3rem;
}

.text-link span {
  margin-left: 0.35rem;
  color: var(--cyan);
}

.system-card {
  position: relative;
  z-index: 1;
  min-height: 35rem;
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    rgba(255, 255, 255, 0.025);
  background-size: 3rem 3rem;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.28);
}

.system-topline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: rgba(255, 255, 255, 0.46);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.system-core {
  position: relative;
  width: min(17rem, 72vw);
  aspect-ratio: 1;
  margin: 1.2rem auto;
  border: 1px solid rgba(101, 230, 255, 0.35);
  border-radius: 50%;
}

.core-orbit {
  position: absolute;
  inset: 18%;
  border: 1px dashed rgba(255, 255, 255, 0.22);
  border-radius: 50%;
}

.core-dot {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 2.5rem rgba(214, 255, 75, 0.55);
  transform: translate(-50%, -50%);
}

.core-axis {
  position: absolute;
  top: 50%;
  left: 50%;
  background: rgba(101, 230, 255, 0.34);
  transform: translate(-50%, -50%);
}

.core-axis-x {
  width: 116%;
  height: 1px;
}

.core-axis-y {
  width: 1px;
  height: 116%;
}

.system-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.system-list li {
  padding: 0.85rem 0;
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.6rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.system-list span {
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
}

.system-list strong {
  font-size: 0.9rem;
  font-weight: 600;
}

.section {
  padding-block: clamp(5.5rem, 10vw, 9rem);
}

.section-heading {
  max-width: 770px;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.section h2,
.legal-heading h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.section-heading > p:last-child {
  max-width: 650px;
  margin: 1.5rem 0 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.capability {
  min-height: 26rem;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.52);
}

.capability-featured {
  background: var(--white);
  box-shadow: 0 28px 70px rgba(32, 53, 101, 0.1);
}

.capability-number {
  margin: 0 0 5rem;
  color: var(--blue);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  font-weight: 700;
}

.capability h3 {
  margin: 0 0 1rem;
  font-size: 1.45rem;
  letter-spacing: -0.025em;
}

.capability > p:not(.capability-number) {
  margin: 0;
  color: var(--ink-soft);
}

.capability ul {
  margin: auto 0 0;
  padding: 1.5rem 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.capability li {
  position: relative;
  padding-left: 1rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.capability li::before {
  content: "";
  position: absolute;
  top: 0.72rem;
  left: 0;
  width: 0.3rem;
  height: 0.3rem;
  background: var(--blue);
}

.approach {
  background: var(--ink);
  color: var(--white);
}

.approach-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(3rem, 9vw, 8rem);
}

.kicker-light {
  color: var(--cyan);
}

.approach-title-block h2 {
  max-width: 520px;
}

.principles article {
  padding-block: 1.75rem;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.principles article:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.principles > article > span {
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
}

.principles h3 {
  margin: 0 0 0.45rem;
  font-size: 1.2rem;
}

.principles p {
  margin: 0;
  color: rgba(255, 255, 255, 0.64);
}

.legal-data div {
  padding-block: 1rem;
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 1.5rem;
  border-top: 1px solid var(--line);
}

.legal-data div:last-child {
  border-bottom: 1px solid var(--line);
}

.legal-data dt {
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.legal-data dd {
  margin: 0;
  font-weight: 650;
}

.contact {
  position: relative;
  overflow: hidden;
  background: var(--blue);
  color: var(--white);
}

.contact::after {
  content: "";
  position: absolute;
  top: -16rem;
  right: -12rem;
  width: 36rem;
  height: 36rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
}

.contact-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: end;
  gap: 3rem;
}

.contact .kicker-light {
  color: var(--lime);
}

.contact-action {
  padding-left: clamp(0rem, 6vw, 5rem);
}

.contact-action p {
  margin: 0 0 0.7rem;
  color: rgba(255, 255, 255, 0.72);
}

.contact-action a {
  display: inline-block;
  color: var(--white);
  font-size: clamp(1.65rem, 3.3vw, 3.1rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.2;
  text-decoration-color: var(--lime);
  text-decoration-thickness: 0.11em;
  text-underline-offset: 0.18em;
}

.site-footer {
  padding-block: 2.3rem;
  background: #070a13;
  color: rgba(255, 255, 255, 0.6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  align-items: end;
  gap: 2rem;
}

.brand-footer {
  margin-bottom: 0.8rem;
}

.site-footer p {
  margin: 0;
  font-size: 0.78rem;
}

.site-footer nav {
  align-self: center;
  justify-content: center;
  flex-wrap: wrap;
}

.site-footer nav a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.82rem;
  text-decoration: none;
}

.site-footer nav a:hover,
.site-footer nav a[aria-current="page"] {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 0.25rem;
}

.copyright {
  text-align: right;
}

.legal-main {
  padding-block: clamp(4.5rem, 9vw, 8rem);
  background: var(--white);
}

.legal-layout {
  display: grid;
  grid-template-columns: minmax(16rem, 0.72fr) minmax(0, 1.28fr);
  align-items: start;
  gap: clamp(3rem, 9vw, 8rem);
}

.legal-heading {
  position: sticky;
  top: 2rem;
}

.legal-heading .eyebrow {
  color: var(--blue);
}

.legal-heading > p:last-child {
  margin-top: 1.4rem;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.legal-content section {
  padding-block: 2rem;
  border-top: 1px solid var(--line);
}

.legal-content section:last-child {
  border-bottom: 1px solid var(--line);
}

.legal-content h2,
.privacy-summary h2 {
  margin: 0 0 1rem;
  font-size: 1.4rem;
  letter-spacing: -0.025em;
}

.legal-content h3 {
  margin: 1.5rem 0 0.55rem;
  font-size: 1rem;
}

.legal-content p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

.legal-content p:last-child {
  margin-bottom: 0;
}

.legal-content a {
  color: var(--blue-dark);
  font-weight: 650;
  text-underline-offset: 0.2em;
}

.legal-data {
  margin: 1.5rem 0 0;
}

.privacy-summary {
  margin: 0 0 2rem;
  padding: 1.7rem;
  border-left: 0.3rem solid var(--blue);
  background: var(--paper);
}

.privacy-summary p {
  margin: 0;
}

@media (max-width: 900px) {
  .hero-grid,
  .approach-grid,
  .contact-inner,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: auto;
    padding-top: 9rem;
  }

  .hero-copy {
    max-width: 760px;
  }

  .system-card {
    min-height: 31rem;
  }

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

  .capability {
    min-height: 23rem;
  }

  .capability-number {
    margin-bottom: 3rem;
  }

  .contact-action {
    padding-left: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr auto;
  }

  .footer-grid > div {
    grid-column: 1 / -1;
  }

  .footer-grid nav {
    justify-content: flex-start;
  }

  .legal-heading {
    position: static;
  }
}

@media (max-width: 650px) {
  .header-inner {
    min-height: 4.8rem;
  }

  .main-nav {
    gap: 0.9rem;
  }

  .main-nav a:not(.nav-contact) {
    display: none;
  }

  .hero-grid {
    padding-top: 7.5rem;
    padding-bottom: 4rem;
  }

  .hero h1 {
    font-size: clamp(2.85rem, 14.7vw, 4.2rem);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button-primary {
    width: 100%;
  }

  .system-card {
    min-height: 27rem;
  }

  .system-topline span:last-child {
    display: none;
  }

  .legal-data div {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }

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

  .site-footer nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.65rem;
  }

  .copyright {
    text-align: left;
  }

  .back-link {
    font-size: 0.82rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .skip-link {
    display: none;
  }

  .legal-main {
    padding: 0;
  }

  .legal-layout {
    display: block;
  }

  .legal-heading {
    margin-bottom: 3rem;
  }
}