:root {
  --bg: #03050a;
  --bg-deep: #000207;
  --text: #f7fbff;
  --muted: #a8b9cf;
  --faint: #75869d;
  --blue: #54b8ff;
  --blue-strong: #167dff;
  --blue-deep: #063a9f;
  --panel: rgba(9, 18, 32, 0.66);
  --panel-strong: rgba(13, 29, 50, 0.82);
  --line: rgba(143, 204, 255, 0.2);
  --line-strong: rgba(117, 195, 255, 0.42);
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.54);
  --glow: 0 0 34px rgba(64, 154, 255, 0.26);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(9, 22, 44, 0.86) 0%, rgba(3, 5, 10, 0.94) 34rem, var(--bg-deep) 100%),
    var(--bg);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

::selection {
  background: rgba(84, 184, 255, 0.34);
}

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

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

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

.background-shell {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background:
    linear-gradient(115deg, transparent 0 18%, rgba(31, 120, 255, 0.14) 31%, transparent 48% 100%),
    linear-gradient(245deg, transparent 0 58%, rgba(77, 187, 255, 0.1) 74%, transparent 100%);
}

.background-shell::before,
.background-shell::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
}

.background-shell::before {
  opacity: 0.46;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.028) 0 1px, transparent 1px 96px);
  mask-image: linear-gradient(180deg, black 0%, rgba(0, 0, 0, 0.55) 45%, transparent 78%);
}

.background-shell::after {
  opacity: 0.18;
  background-image:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 18px),
    linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.46));
}

.grid-glow {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(84, 184, 255, 0.12), transparent 22rem),
    linear-gradient(90deg, transparent, rgba(22, 125, 255, 0.08), transparent);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 32px));
  margin: 18px auto 0;
  padding: 12px 14px 12px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(3, 8, 16, 0.74);
  backdrop-filter: blur(18px) saturate(1.35);
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  filter: drop-shadow(0 0 18px rgba(84, 184, 255, 0.42));
}

.brand strong,
.brand small {
  display: block;
  letter-spacing: 0;
}

.brand strong {
  font-size: 0.98rem;
  line-height: 1.1;
}

.brand small {
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
}

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

.site-nav a {
  color: var(--muted);
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.94rem;
  transition: color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
}

.site-nav .nav-cta {
  color: var(--text);
  border: 1px solid rgba(84, 184, 255, 0.4);
  background: linear-gradient(180deg, rgba(84, 184, 255, 0.24), rgba(84, 184, 255, 0.08));
  box-shadow: var(--glow);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
  border-radius: 10px;
}

.section-wrap {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.72fr);
  gap: 34px;
  align-items: center;
  min-height: calc(100vh - 78px);
  padding: 76px 0 58px;
}

.hero-copy h1 {
  max-width: 880px;
  margin: 0 0 24px;
  font-size: 6.35rem;
  line-height: 0.92;
  letter-spacing: 0;
}

.lead {
  max-width: 760px;
  margin: 0;
  color: #d3dfef;
  font-size: 1.22rem;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 760;
  letter-spacing: 0;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.button-primary {
  color: #041122;
  background: linear-gradient(135deg, #b9e7ff, #54b8ff 44%, #126eff);
  box-shadow: 0 20px 58px rgba(18, 119, 255, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.58);
}

.button-secondary {
  color: var(--text);
  border: 1px solid rgba(169, 213, 255, 0.32);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  max-width: 650px;
  margin: 34px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--line);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
}

.hero-proof div {
  padding: 18px;
  background: rgba(5, 12, 24, 0.74);
}

.hero-proof dt {
  color: var(--text);
  font-weight: 800;
}

.hero-proof dd {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.glass-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.025)),
    var(--panel);
  backdrop-filter: blur(22px) saturate(1.28);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.09), 0 0 0 1px rgba(84, 184, 255, 0.05);
}

.hero-panel {
  position: relative;
  overflow: hidden;
  padding: 28px;
}

.hero-panel::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(125deg, rgba(84, 184, 255, 0.22), transparent 34%),
    linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.2));
  pointer-events: none;
}

.hero-panel > * {
  position: relative;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 22px rgba(84, 184, 255, 0.86);
}

.signal-console {
  display: grid;
  gap: 16px;
}

.console-ring {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 240px;
  margin-bottom: 4px;
  border: 1px solid rgba(143, 204, 255, 0.18);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(6, 18, 36, 0.72), rgba(4, 10, 21, 0.9)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.04) 0 1px, transparent 1px 34px);
  box-shadow: inset 0 0 70px rgba(84, 184, 255, 0.08);
}

.console-ring::before {
  position: absolute;
  width: 72px;
  height: 72px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(84, 184, 255, 0.26), rgba(18, 110, 255, 0.08));
  box-shadow: 0 0 46px rgba(84, 184, 255, 0.34);
  content: "";
}

.console-ring span {
  position: absolute;
  border: 1px solid rgba(84, 184, 255, 0.24);
  border-radius: 50%;
}

.console-ring span:nth-child(1) {
  width: 132px;
  height: 132px;
}

.console-ring span:nth-child(2) {
  width: 190px;
  height: 190px;
  opacity: 0.58;
}

.console-ring span:nth-child(3) {
  width: 238px;
  height: 238px;
  opacity: 0.28;
}

.console-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: start;
  padding: 14px 0;
  border-top: 1px solid rgba(143, 204, 255, 0.14);
}

.console-row > span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--blue);
  border: 1px solid rgba(84, 184, 255, 0.22);
  border-radius: 12px;
  background: rgba(84, 184, 255, 0.08);
  font-weight: 900;
}

.console-row strong {
  line-height: 1.15;
}

.console-row p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.metric-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--line);
  box-shadow: var(--shadow);
}

.metric-band div {
  padding: 24px;
  background: rgba(8, 17, 31, 0.76);
}

.metric-band strong {
  display: block;
  font-size: 1.05rem;
}

.metric-band span {
  display: block;
  color: var(--muted);
  margin-top: 5px;
  font-size: 0.9rem;
}

.split-section,
.principles-section {
  padding: 112px 0 0;
}

.section-heading {
  max-width: 800px;
  margin-bottom: 30px;
}

.section-heading h2,
.contact-band h2 {
  margin: 0;
  font-size: 4.35rem;
  line-height: 1;
  letter-spacing: 0;
}

.section-heading p,
.contact-band p,
.product-card p,
.principles-grid p {
  color: var(--muted);
}

.section-heading p {
  margin: 18px 0 0;
  font-size: 1.08rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.product-card,
.principles-grid article {
  padding: 28px;
}

.product-card {
  min-height: 350px;
  display: flex;
  flex-direction: column;
}

.card-topline {
  width: fit-content;
  margin-bottom: 18px;
  padding: 7px 10px;
  color: #c3e4ff;
  border: 1px solid rgba(84, 184, 255, 0.26);
  border-radius: 999px;
  background: rgba(84, 184, 255, 0.08);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.product-card h3,
.principles-grid h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

.product-card h3 {
  font-size: 2rem;
}

.product-card p {
  flex: 1;
  margin: 18px 0 24px;
}

.product-card a,
.content-card a {
  color: var(--blue);
  font-weight: 800;
}

.product-card a:hover,
.product-card a:focus-visible,
.content-card a:hover,
.content-card a:focus-visible,
.site-footer a:hover,
.site-footer a:focus-visible {
  color: #b9e7ff;
}

.product-card a::after {
  content: " ->";
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.principles-grid h3 {
  font-size: 1.22rem;
}

.principles-grid p {
  margin: 14px 0 0;
  font-size: 0.94rem;
}

.contact-band {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.72fr);
  gap: 40px;
  align-items: stretch;
  overflow: hidden;
  margin-top: 112px;
  padding: 44px;
}

.contact-band::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(120deg, rgba(84, 184, 255, 0.14), transparent 32%),
    radial-gradient(circle at 88% 18%, rgba(84, 184, 255, 0.16), transparent 20rem);
  pointer-events: none;
}

.contact-copy,
.contact-methods {
  position: relative;
}

.contact-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-copy h2 {
  max-width: 720px;
}

.contact-copy p:not(.eyebrow) {
  max-width: 660px;
  margin: 22px 0 0;
}

.contact-methods {
  display: grid;
  gap: 14px;
  align-content: center;
}

.contact-card {
  display: grid;
  gap: 8px;
  min-height: 132px;
  padding: 20px;
  border: 1px solid rgba(143, 204, 255, 0.2);
  border-radius: var(--radius-md);
  background: rgba(5, 13, 26, 0.68);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.contact-card:hover,
.contact-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  background: rgba(10, 24, 44, 0.84);
  box-shadow: 0 18px 58px rgba(0, 0, 0, 0.32), 0 0 30px rgba(84, 184, 255, 0.13);
}

.contact-card-primary {
  border-color: rgba(84, 184, 255, 0.38);
  background:
    linear-gradient(145deg, rgba(84, 184, 255, 0.16), rgba(255, 255, 255, 0.035)),
    rgba(5, 13, 26, 0.72);
}

.contact-card span {
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.contact-card strong {
  overflow-wrap: anywhere;
  color: var(--text);
  font-size: 1.02rem;
  line-height: 1.25;
}

.contact-card em {
  color: var(--muted);
  font-size: 0.94rem;
  font-style: normal;
}

.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 80px auto 0;
  padding: 30px 0 44px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer div,
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: center;
  justify-content: space-between;
}

.site-footer strong {
  color: var(--text);
}

.site-footer nav {
  justify-content: flex-start;
  margin-top: 18px;
}

.site-footer p {
  margin: 18px 0 0;
  color: var(--faint);
  font-size: 0.9rem;
}

.content-page {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 96px 0 34px;
}

.content-card {
  padding: 48px;
}

.content-card h1 {
  margin: 0 0 18px;
  font-size: 4.5rem;
  line-height: 1;
  letter-spacing: 0;
}

.content-card h2 {
  margin: 34px 0 10px;
  font-size: 1.4rem;
  letter-spacing: 0;
}

.content-card p,
.content-card li {
  color: var(--muted);
}

.content-card ul {
  padding-left: 1.2rem;
}

.notice {
  margin: 26px 0;
  padding: 16px 18px;
  border: 1px solid rgba(84, 184, 255, 0.26);
  border-radius: 18px;
  background: rgba(84, 184, 255, 0.08);
  color: #d7ecff;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  animation: reveal 700ms ease forwards;
}

.reveal:nth-child(2) {
  animation-delay: 80ms;
}

.reveal:nth-child(3) {
  animation-delay: 140ms;
}

.reveal:nth-child(4) {
  animation-delay: 200ms;
}

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

@media (max-width: 1120px) {
  .hero-copy h1 {
    font-size: 5.2rem;
  }

  .section-heading h2,
  .contact-band h2 {
    font-size: 3.65rem;
  }

  .principles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 980px) {
  .hero,
  .contact-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .product-grid,
  .principles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric-band {
    grid-template-columns: repeat(2, 1fr);
  }

}

@media (max-width: 740px) {
  .site-header {
    border-radius: 24px;
    align-items: flex-start;
  }

  .brand {
    min-height: 44px;
  }

  .brand small {
    display: none;
  }

  .nav-toggle {
    display: block;
    flex: 0 0 auto;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: rgba(3, 8, 16, 0.94);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    text-align: center;
  }

  .hero {
    padding-top: 74px;
  }

  .hero-copy h1 {
    font-size: 3.65rem;
    line-height: 0.98;
  }

  .lead {
    font-size: 1.08rem;
  }

  .hero-proof,
  .product-grid,
  .principles-grid,
  .metric-band {
    grid-template-columns: 1fr;
  }

  .console-ring {
    min-height: 200px;
  }

  .console-ring span:nth-child(3) {
    width: 200px;
    height: 200px;
  }

  .section-heading h2,
  .contact-band h2,
  .content-card h1 {
    font-size: 2.65rem;
  }

  .contact-band h2 {
    font-size: 2.35rem;
    line-height: 1.08;
  }

  .split-section,
  .principles-section {
    padding-top: 78px;
  }

  .hero-panel,
  .product-card,
  .principles-grid article,
  .contact-band {
    border-radius: 22px;
  }

  .button {
    width: 100%;
  }

  .content-card,
  .contact-band {
    padding: 26px;
  }

  .contact-band {
    gap: 26px;
  }

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

@media (max-width: 430px) {
  .brand strong {
    font-size: 0.9rem;
  }

  .hero-copy h1 {
    font-size: 3.05rem;
  }

  .section-heading h2,
  .contact-band h2,
  .content-card h1 {
    font-size: 2.25rem;
  }

  .contact-band h2 {
    font-size: 2rem;
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
    animation: none;
  }

  .button:hover,
  .button:focus-visible {
    transform: none;
  }
}