:root {
  --color-bg: #050b16;
  --color-bg-soft: #071222;
  --color-surface: rgba(10, 20, 39, 0.78);
  --color-surface-strong: rgba(13, 24, 47, 0.94);
  --color-border: rgba(169, 212, 255, 0.22);
  --color-border-strong: rgba(169, 212, 255, 0.42);
  --color-text: #f4f8ff;
  --color-text-soft: #c9d9ee;
  --color-text-muted: #8ea7c8;
  --color-blue: #6ea8ff;
  --color-blue-soft: #a9d4ff;
  --color-cyan: #bcecff;
  --color-focus: #d7ecff;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --max-page: 1160px;
  --max-copy: 760px;
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 32px;
  --shadow-glow: 0 0 44px rgba(100, 169, 255, 0.16);
  --shadow-card: 0 24px 70px rgba(0, 0, 0, 0.28);
  --duration-fast: 160ms;
  --duration: 280ms;
  --duration-slow: 900ms;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --z-nav: 20;
  --z-menu: 30;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 50% -10%, rgba(90, 150, 255, 0.24), transparent 35rem),
    radial-gradient(circle at 85% 18%, rgba(121, 219, 255, 0.08), transparent 24rem),
    linear-gradient(180deg, #06101f 0%, var(--color-bg) 42%, #03070e 100%);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.6;
}

body.menu-open { overflow: hidden; }

a { color: inherit; }

img, svg { max-width: 100%; }

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  transform: translateY(-160%);
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: var(--color-text);
  color: #05101f;
  font-weight: 700;
  transition: transform var(--duration) var(--ease);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  padding: calc(0.75rem + env(safe-area-inset-top)) max(1rem, env(safe-area-inset-left)) 0.75rem max(1rem, env(safe-area-inset-right));
  backdrop-filter: blur(18px);
  background: linear-gradient(180deg, rgba(5, 11, 22, 0.92), rgba(5, 11, 22, 0.62));
  border-bottom: 1px solid rgba(169, 212, 255, 0.10);
}

.nav-shell {
  max-width: var(--max-page);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: radial-gradient(circle at 42% 42%, #fff 0 7%, #a9d4ff 8% 18%, #315ab0 44%, #07152b 76%);
  border: 1px solid rgba(235, 247, 255, 0.8);
  box-shadow: 0 0 24px rgba(137, 197, 255, 0.35);
}

.nav-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(12, 24, 46, 0.76);
  color: var(--color-text);
  font: inherit;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.nav-links a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  color: var(--color-text-soft);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease), background var(--duration-fast) var(--ease);
}

.nav-links a:hover, .nav-links a:focus-visible {
  color: var(--color-text);
  background: rgba(169, 212, 255, 0.08);
}

.button,
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.82rem 1.2rem;
  border-radius: 999px;
  border: 1px solid rgba(110, 168, 255, 0.46);
  background: linear-gradient(180deg, #18254a 0%, #0d1326 100%);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 0 34px rgba(169, 212, 255, 0.16), inset 0 1px 0 rgba(255,255,255,0.12);
  transition: transform var(--duration-fast) var(--ease), border-color var(--duration-fast) var(--ease), box-shadow var(--duration-fast) var(--ease);
}

.button:hover, .button:focus-visible, .nav-cta:hover, .nav-cta:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(188, 236, 255, 0.68);
  box-shadow: 0 0 42px rgba(169, 212, 255, 0.24), inset 0 1px 0 rgba(255,255,255,0.18);
}

.button.secondary {
  background: rgba(13, 19, 38, 0.72);
  color: var(--color-text-soft);
  box-shadow: none;
}

main { display: block; }

.section {
  max-width: var(--max-page);
  margin: 0 auto;
  padding: var(--space-7) max(1.1rem, env(safe-area-inset-left)) var(--space-7) max(1.1rem, env(safe-area-inset-right));
}

.hero {
  min-height: calc(100svh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(280px, 0.98fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--color-blue-soft);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 800;
}

h1, h2, h3 { line-height: 1.08; letter-spacing: 0; }
h1 { margin: 0; font-size: clamp(3rem, 8vw, 6.7rem); }
h2 { margin: 0; font-size: clamp(2rem, 4.7vw, 4rem); }
h3 { margin: 0 0 0.75rem; font-size: clamp(1.15rem, 2vw, 1.5rem); }

.lead {
  max-width: 640px;
  margin: 1.35rem 0 0;
  color: var(--color-text-soft);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.availability { margin-top: 1.15rem; color: var(--color-text-muted); }

.sphere-stage {
  min-height: 410px;
  display: grid;
  place-items: center;
  position: relative;
}

.neural-sphere {
  position: relative;
  width: min(76vw, 430px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 49% 48%, rgba(255,255,255,0.72) 0 1.5%, rgba(157,212,255,0.28) 2.5%, transparent 9%),
    radial-gradient(circle at 36% 28%, rgba(120,172,255,0.35), transparent 25%),
    radial-gradient(circle at 62% 66%, rgba(26, 70, 148, 0.22), transparent 28%),
    radial-gradient(circle, rgba(12, 39, 92, 0.96) 0%, #061a3a 55%, #041020 82%);
  border: 2px solid rgba(240, 249, 255, 0.88);
  box-shadow:
    0 0 18px rgba(236,247,255,0.82),
    0 0 70px rgba(85,145,255,0.42),
    0 0 125px rgba(50,110,235,0.22),
    inset 0 0 56px rgba(169,212,255,0.23);
  overflow: hidden;
  animation: breathe 6s var(--ease) infinite;
}

.neural-sphere::before,
.neural-sphere::after {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: inherit;
  background:
    linear-gradient(38deg, transparent 18%, rgba(169,212,255,.16) 18.4%, transparent 19.1% 44%, rgba(169,212,255,.13) 44.4%, transparent 45.1%),
    linear-gradient(128deg, transparent 20%, rgba(110,168,255,.15) 20.4%, transparent 21.1% 58%, rgba(188,236,255,.12) 58.3%, transparent 59%),
    linear-gradient(76deg, transparent 8%, rgba(169,212,255,.10) 8.4%, transparent 9.1% 70%, rgba(169,212,255,.14) 70.3%, transparent 71%);
  opacity: .84;
  animation: drift 28s linear infinite;
}

.neural-sphere::after {
  inset: 11%;
  transform: rotate(28deg);
  opacity: .62;
  animation-duration: 38s;
  animation-direction: reverse;
}

.node {
  position: absolute;
  width: var(--size, 5px);
  height: var(--size, 5px);
  left: var(--x);
  top: var(--y);
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 9px #dcefff, 0 0 22px rgba(110,168,255,.62);
  animation: twinkle var(--tw, 5s) var(--ease) infinite;
  animation-delay: var(--delay, 0s);
}

.page-hero {
  padding-top: var(--space-6);
  padding-bottom: var(--space-4);
}

.page-hero p { max-width: var(--max-copy); color: var(--color-text-soft); font-size: 1.08rem; }

.grid { display: grid; gap: var(--space-4); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card, .legal-card, .faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(14, 27, 52, 0.72), rgba(7, 14, 28, 0.78));
  box-shadow: var(--shadow-card);
}

.card { padding: clamp(1.25rem, 2.5vw, 1.7rem); }
.card p { margin: 0; color: var(--color-text-soft); }
.card .number { color: var(--color-blue-soft); font-weight: 800; margin-bottom: 1rem; }

.section-head { max-width: var(--max-copy); margin-bottom: var(--space-5); }
.section-head p { color: var(--color-text-soft); font-size: 1.05rem; }

.concept-list { display: grid; gap: 0.85rem; margin: 1.5rem 0 0; padding: 0; list-style: none; }
.concept-list li { padding-left: 1.7rem; position: relative; color: var(--color-text-soft); }
.concept-list li::before { content: ""; position: absolute; left: 0; top: .62rem; width: 8px; height: 8px; border-radius: 50%; background: var(--color-blue-soft); box-shadow: 0 0 18px rgba(169,212,255,.55); }

.phone-wrap { display: grid; place-items: center; }
.phone-mockup {
  width: min(320px, 88vw);
  min-height: 610px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 42px;
  padding: 1rem;
  background: linear-gradient(180deg, #080e19, #03070e);
  box-shadow: 0 24px 80px rgba(0,0,0,.42), 0 0 58px rgba(76,125,255,.16);
}
.phone-screen { height: 100%; min-height: 575px; border-radius: 32px; background: radial-gradient(circle at 50% 26%, rgba(84,140,255,.22), transparent 35%), #050b16; display: grid; place-items: center; text-align: center; padding: 1.25rem; }
.phone-sphere { width: 150px; height: 150px; margin: 0 auto 1.5rem; border-radius: 50%; background: radial-gradient(circle at 48% 45%, #fff 0 4%, #a9d4ff 7%, #315ab0 38%, #07152b 74%); border: 1px solid rgba(255,255,255,.86); box-shadow: 0 0 42px rgba(169,212,255,.42); }

.faq-list { display: grid; gap: 0.85rem; }
.faq-item { overflow: hidden; }
.faq-button { width: 100%; min-height: 58px; padding: 1rem 1.2rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem; border: 0; background: transparent; color: var(--color-text); font: inherit; font-weight: 750; text-align: left; cursor: pointer; }
.faq-button::after { content: "+"; font-size: 1.35rem; color: var(--color-blue-soft); }
.faq-button[aria-expanded="true"]::after { content: "−"; }
.faq-panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--duration) var(--ease); }
.faq-button[aria-expanded="true"] + .faq-panel { grid-template-rows: 1fr; }
.faq-panel > div { overflow: hidden; }
.faq-panel p { margin: 0; padding: 0 1.2rem 1.2rem; color: var(--color-text-soft); }

.cta-band { text-align: center; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: radial-gradient(circle at 50% 0, rgba(95,160,255,.18), transparent 36%), rgba(9, 18, 35, .86); padding: clamp(2rem, 5vw, 4rem); box-shadow: var(--shadow-glow); }
.cta-band p { color: var(--color-text-soft); }

.site-footer { border-top: 1px solid rgba(169,212,255,.12); padding: 2rem max(1rem, env(safe-area-inset-left)) calc(2rem + env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-right)); color: var(--color-text-muted); }
.footer-inner { max-width: var(--max-page); margin: 0 auto; display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; justify-content: space-between; }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.85rem; }
.footer-links a { color: var(--color-text-soft); text-decoration: none; }
.footer-links a:hover { color: var(--color-text); }

.legal-card { padding: clamp(1.2rem, 3vw, 2rem); margin-bottom: var(--space-4); }
.legal-card h2 { font-size: clamp(1.45rem, 3vw, 2.2rem); margin-bottom: 1rem; }
.legal-card p, .legal-card li { color: var(--color-text-soft); }
.prelaunch-legal-notice { border: 1px solid rgba(255, 214, 130, .34); background: rgba(255, 214, 130, .08); color: #ffe2a2; border-radius: var(--radius-sm); padding: 1rem; margin: 1rem 0; }
.placeholder-list code, .marker { color: var(--color-cyan); }

.not-found { min-height: 70svh; display: grid; place-items: center; text-align: center; }

.confirmation-hero {
  min-height: calc(100svh - 72px);
  display: grid;
  place-items: center;
  text-align: center;
}

.confirmation-card {
  width: min(100%, 760px);
  padding: clamp(2rem, 7vw, 4.5rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 8%, rgba(169, 212, 255, 0.18), transparent 34rem),
    linear-gradient(180deg, rgba(14, 27, 52, 0.78), rgba(5, 11, 22, 0.9));
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.confirmation-card h1 {
  font-size: clamp(2.45rem, 6.8vw, 5.4rem);
}

.confirmation-card .lead {
  margin-left: auto;
  margin-right: auto;
}

.confirmation-sphere {
  width: 108px;
  aspect-ratio: 1;
  margin: 0 auto 2rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(255,255,255,.9) 0 8%, rgba(169,212,255,.36) 9% 24%, transparent 25%),
    radial-gradient(circle at 42% 34%, rgba(169,212,255,.52), transparent 35%),
    radial-gradient(circle, #123772 0%, #061a3a 56%, #041020 82%);
  border: 1px solid rgba(240, 249, 255, 0.9);
  box-shadow:
    0 0 20px rgba(236,247,255,0.82),
    0 0 62px rgba(85,145,255,0.38),
    inset 0 0 32px rgba(169,212,255,0.24);
}

.confirmation-sphere span {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 18px rgba(255,255,255,.92), 0 0 42px rgba(169,212,255,.72);
}

.confirmation-actions {
  justify-content: center;
}

:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }

@keyframes breathe { 0%,100% { transform: scale(1); } 50% { transform: scale(1.018); } }
@keyframes drift { to { transform: rotate(360deg); } }
@keyframes twinkle { 0%,100% { opacity: .45; transform: scale(.82); } 50% { opacity: 1; transform: scale(1.14); } }

@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: var(--space-6); }
  .hero-copy, .lead { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .grid.three, .grid.four, .grid.two { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-links { position: fixed; inset: calc(64px + env(safe-area-inset-top)) 1rem auto 1rem; z-index: var(--z-menu); display: none; flex-direction: column; align-items: stretch; padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: rgba(5, 11, 22, .96); box-shadow: var(--shadow-card); }
  .nav-links.open { display: flex; }
  .nav-links a, .nav-cta { justify-content: center; width: 100%; }
  .grid.three, .grid.four, .grid.two { grid-template-columns: 1fr; }
  .section { padding-top: var(--space-6); padding-bottom: var(--space-6); }
  .sphere-stage { min-height: 320px; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 420px) {
  h1 { font-size: clamp(2.55rem, 17vw, 3.7rem); }
  .button { width: 100%; }
  .hero-actions { width: 100%; }
  .phone-mockup { min-height: 540px; border-radius: 34px; }
  .phone-screen { min-height: 505px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 1ms !important; }
  .neural-sphere::before, .neural-sphere::after { animation: none !important; }
}