:root {
  color-scheme: dark;
  --bg: #070b11;
  --bg-soft: #0b111a;
  --panel: rgba(15, 23, 35, 0.72);
  --panel-strong: #101927;
  --line: rgba(180, 209, 232, 0.14);
  --line-strong: rgba(180, 209, 232, 0.27);
  --text: #f3f7fa;
  --muted: #9cabb8;
  --accent: #81f2c4;
  --accent-blue: #6ec8ff;
  --max-width: 1200px;
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 82% 13%, rgba(47, 121, 145, 0.14), transparent 32rem),
    radial-gradient(circle at 14% 42%, rgba(28, 105, 82, 0.1), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  transform: translateY(-160%);
  border-radius: 8px;
  background: var(--text);
  color: var(--bg);
}

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

.site-shell {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: 16px;
  padding: 12px 14px 12px 16px;
  border: 1px solid transparent;
  border-radius: 16px;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(7, 11, 17, 0.84);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-size: 0.93rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(129, 242, 196, 0.38);
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(129, 242, 196, 0.17), rgba(110, 200, 255, 0.08));
  color: var(--accent);
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 27px;
  color: var(--muted);
  font-size: 0.84rem;
}

.nav a {
  transition: color 160ms ease;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
}

.nav .nav-contact {
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  color: var(--text);
}

.hero {
  display: grid;
  min-height: 760px;
  grid-template-columns: minmax(0, 1.08fr) minmax(390px, 0.92fr);
  align-items: center;
  gap: clamp(42px, 8vw, 104px);
  padding: 92px 0 72px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 26px;
  color: #b7c3cc;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(129, 242, 196, 0.08), 0 0 22px rgba(129, 242, 196, 0.5);
}

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

h1 {
  max-width: 760px;
  margin-bottom: 28px;
  font-size: clamp(3.6rem, 7.3vw, 6.65rem);
  font-weight: 540;
  letter-spacing: -0.068em;
  line-height: 0.94;
}

h1 span {
  background: linear-gradient(105deg, var(--accent) 10%, #b8eee2 46%, var(--accent-blue));
  background-clip: text;
  color: transparent;
}

.hero-intro {
  max-width: 640px;
  margin-bottom: 35px;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 17px;
  padding: 11px 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 650;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #06110d;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #a1f7d5;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.025);
  color: #d8e0e6;
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.055);
}

.hero-visual {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(129, 242, 196, 0.1), transparent 20%),
    radial-gradient(circle at center, rgba(110, 200, 255, 0.07), transparent 62%);
  box-shadow: inset 0 0 70px rgba(255, 255, 255, 0.025);
}

.hero-visual::before,
.hero-visual::after {
  position: absolute;
  border: 1px solid var(--line);
  border-radius: 50%;
  content: "";
}

.hero-visual::before {
  inset: 18%;
}

.hero-visual::after {
  inset: 37%;
  border-color: rgba(129, 242, 196, 0.22);
}

.orbit {
  position: absolute;
  inset: 7%;
  border: 1px dashed rgba(110, 200, 255, 0.2);
  border-radius: 50%;
  animation: rotate 24s linear infinite;
}

.orbit::after {
  position: absolute;
  top: 13%;
  right: 13%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 22px rgba(110, 200, 255, 0.8);
  content: "";
}

.orbit-two {
  inset: 28%;
  animation-direction: reverse;
  animation-duration: 16s;
}

.orbit-two::after {
  top: auto;
  right: auto;
  bottom: -4px;
  left: 50%;
  background: var(--accent);
  box-shadow: 0 0 22px rgba(129, 242, 196, 0.8);
}

.visual-core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 4;
  display: grid;
  width: 78px;
  height: 78px;
  transform: translate(-50%, -50%);
  place-items: center;
  border: 1px solid rgba(129, 242, 196, 0.45);
  border-radius: 22px;
  background: #0c1719;
  box-shadow: 0 0 60px rgba(129, 242, 196, 0.13);
}

.visual-core span {
  color: var(--accent);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.signal-line {
  position: absolute;
  z-index: 1;
  height: 1px;
  transform-origin: left center;
  background: linear-gradient(90deg, transparent, rgba(129, 242, 196, 0.42), transparent);
}

.signal-one {
  top: 33%;
  left: 8%;
  width: 50%;
  transform: rotate(17deg);
}

.signal-two {
  top: 69%;
  left: 44%;
  width: 47%;
  transform: rotate(-24deg);
}

.signal-three {
  top: 49%;
  left: 48%;
  width: 42%;
  transform: rotate(9deg);
}

.visual-label {
  position: absolute;
  z-index: 3;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(7, 11, 17, 0.82);
  color: #8496a5;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.58rem;
  letter-spacing: 0.12em;
}

.label-input {
  top: 25%;
  left: 4%;
}

.label-state {
  top: 15%;
  right: 18%;
}

.label-output {
  right: 2%;
  bottom: 26%;
}

@keyframes rotate {
  to {
    transform: rotate(360deg);
  }
}

.section {
  display: grid;
  grid-template-columns: minmax(150px, 0.24fr) minmax(0, 1fr);
  gap: clamp(30px, 6vw, 82px);
  padding: 118px 0;
  border-top: 1px solid var(--line);
}

.section-label {
  padding-top: 7px;
  color: #71818e;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.split-copy {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.72fr);
  gap: clamp(40px, 8vw, 112px);
}

.section h2 {
  margin-bottom: 22px;
  font-size: clamp(2.2rem, 4.4vw, 4.35rem);
  font-weight: 520;
  letter-spacing: -0.05em;
  line-height: 1.04;
}

.split-copy p,
.section-heading p {
  color: var(--muted);
  font-size: 1.02rem;
}

.split-copy p + p {
  margin-top: 25px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 60px;
  margin-bottom: 60px;
}

.section-heading h2 {
  max-width: 690px;
  margin: 0;
}

.section-heading p {
  max-width: 360px;
  margin-bottom: 4px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.capability-card {
  position: relative;
  min-height: 275px;
  padding: 31px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(17, 27, 41, 0.82), rgba(11, 17, 26, 0.54));
  transition:
    transform 200ms ease,
    border-color 200ms ease;
}

.capability-card::after {
  position: absolute;
  right: -50px;
  bottom: -80px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(129, 242, 196, 0.055);
  filter: blur(3px);
  content: "";
}

.capability-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.card-number,
.principle > span {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.66rem;
  letter-spacing: 0.1em;
}

.capability-card h3 {
  margin: 72px 0 11px;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.capability-card p {
  max-width: 390px;
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.principle-list {
  border-top: 1px solid var(--line);
}

.principle {
  display: grid;
  grid-template-columns: 65px minmax(240px, 0.65fr) minmax(280px, 0.7fr);
  align-items: baseline;
  gap: 34px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.principle h3,
.principle p {
  margin: 0;
}

.principle h3 {
  font-size: 1.18rem;
  font-weight: 580;
  letter-spacing: -0.02em;
}

.principle p {
  color: var(--muted);
  font-size: 0.92rem;
}

.contact {
  display: block;
  padding: 118px 0;
}

.contact-panel {
  position: relative;
  padding: clamp(40px, 7vw, 84px);
  overflow: hidden;
  border: 1px solid rgba(129, 242, 196, 0.2);
  border-radius: 32px;
  background:
    radial-gradient(circle at 86% 16%, rgba(110, 200, 255, 0.14), transparent 28rem),
    linear-gradient(135deg, rgba(18, 34, 39, 0.86), rgba(12, 20, 31, 0.88));
}

.contact-panel::after {
  position: absolute;
  right: -9%;
  bottom: -75%;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(129, 242, 196, 0.13);
  border-radius: 50%;
  content: "";
}

.contact-panel h2 {
  max-width: 770px;
  margin-bottom: 18px;
}

.contact-panel > p:not(.eyebrow) {
  max-width: 650px;
  color: var(--muted);
}

.contact-link {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 23px;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(129, 242, 196, 0.35);
  color: var(--accent);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 600;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px;
  padding: 45px 0 38px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
}

.footer-brand {
  margin-bottom: 14px;
}

.site-footer p {
  margin-bottom: 0;
}

.footer-meta {
  display: flex;
  align-items: start;
  gap: 22px;
}

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

.disclaimer {
  max-width: 670px;
  grid-column: 1 / -1;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: #667580;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 600ms ease,
    transform 600ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 110px;
  }

  .hero-copy {
    max-width: 720px;
  }

  .hero-visual {
    width: min(100%, 560px);
    margin: 25px auto 0;
  }

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

  .split-copy {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .section-heading {
    display: block;
  }

  .section-heading p {
    margin-top: 24px;
  }

  .principle {
    grid-template-columns: 45px minmax(190px, 0.8fr) minmax(250px, 1fr);
    gap: 20px;
  }
}

@media (max-width: 660px) {
  .site-shell {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .site-header {
    top: 8px;
    margin-top: 8px;
    padding: 10px 11px;
  }

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

  .nav .nav-contact {
    padding: 7px 12px;
  }

  .hero {
    padding: 96px 0 67px;
  }

  h1 {
    font-size: clamp(2.75rem, 13vw, 3.5rem);
    letter-spacing: -0.058em;
  }

  .hero-copy {
    min-width: 0;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    margin-top: 12px;
  }

  .section,
  .contact {
    padding: 84px 0;
  }

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

  .capability-card {
    min-height: 235px;
  }

  .capability-card h3 {
    margin-top: 50px;
  }

  .principle {
    grid-template-columns: 36px 1fr;
  }

  .principle p {
    grid-column: 2;
  }

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

  .footer-meta {
    justify-content: space-between;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}