:root {
  --bg: #05070d;
  --panel: rgba(255,255,255,.07);
  --panel2: rgba(255,255,255,.11);
  --text: #f7fbff;
  --muted: #aeb8c7;
  --cyan: #29dfff;
  --blue: #3577ff;
  --line: rgba(255,255,255,.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(41,223,255,.22), transparent 35%),
    radial-gradient(circle at 80% 10%, rgba(53,119,255,.20), transparent 30%),
    linear-gradient(135deg, #05070d 0%, #07111f 55%, #05070d 100%);
  min-height: 100vh;
}

a { color: inherit; }

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand { display: flex; gap: 12px; align-items: center; }

.brand span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-top: 3px;
}

.logo-mark {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 25px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #00111a;
  box-shadow: 0 0 30px rgba(41,223,255,.35);
}

nav { display: flex; gap: 24px; }

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

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

.hero {
  width: min(1180px, calc(100% - 32px));
  margin: 55px auto 40px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 42px;
  align-items: center;
}

.eyebrow {
  color: var(--cyan);
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: .15em;
  font-size: 12px;
}

h1 {
  font-size: clamp(45px, 7vw, 82px);
  line-height: .95;
  margin: 10px 0 22px;
  letter-spacing: -3px;
}

h2 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.05;
  margin: 0 0 18px;
  letter-spacing: -1.5px;
}

h3 { margin: 0 0 12px; font-size: 22px; }

p { color: var(--muted); line-height: 1.7; }

.subhead {
  max-width: 650px;
  font-size: 18px;
}

.buttons { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }

.btn {
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 14px 20px;
  border-radius: 999px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #00111a;
  border: none;
  box-shadow: 0 15px 40px rgba(41,223,255,.25);
}

.secondary {
  background: rgba(255,255,255,.06);
  color: var(--text);
}

.hero-card {
  min-height: 430px;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: linear-gradient(145deg, rgba(255,255,255,.12), rgba(255,255,255,.04));
  backdrop-filter: blur(14px);
  position: relative;
  padding: 36px;
  overflow: hidden;
  box-shadow: 0 30px 90px rgba(0,0,0,.35);
}

.hero-card:before {
  content: "";
  position: absolute;
  inset: -80px;
  background: conic-gradient(from 180deg, transparent, rgba(41,223,255,.22), transparent, rgba(53,119,255,.25), transparent);
  animation: spin 8s linear infinite;
}

.screen {
  position: relative;
  z-index: 1;
  background: #03060b;
  border: 1px solid rgba(41,223,255,.25);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: inset 0 0 40px rgba(41,223,255,.08);
}

.screen-top {
  padding: 14px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.screen-top span {
  width: 10px;
  height: 10px;
  background: rgba(255,255,255,.35);
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
}

pre {
  margin: 0;
  padding: 28px;
  color: #9ff4ff;
  white-space: pre-wrap;
  font-size: 15px;
  line-height: 1.7;
}

.floating-card {
  position: absolute;
  z-index: 2;
  padding: 14px 18px;
  border-radius: 16px;
  background: rgba(255,255,255,.12);
  border: 1px solid var(--line);
  box-shadow: 0 20px 50px rgba(0,0,0,.30);
  font-weight: 800;
}

.one { bottom: 50px; left: 40px; }
.two { right: 34px; bottom: 105px; }
.three { right: 55px; top: 42px; }

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 90px auto;
}

.section-title { max-width: 760px; margin-bottom: 30px; }

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

.card, .about-box, form {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 24px;
  padding: 26px;
  box-shadow: 0 20px 55px rgba(0,0,0,.18);
}

.card:hover {
  transform: translateY(-5px);
  background: var(--panel2);
}

.split {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 32px;
  align-items: start;
}

ul { color: var(--muted); line-height: 2; padding-left: 20px; }

.cta {
  width: min(1000px, calc(100% - 32px));
  margin: 90px auto;
  text-align: center;
  padding: 55px 24px;
  border: 1px solid rgba(41,223,255,.25);
  border-radius: 32px;
  background: linear-gradient(135deg, rgba(41,223,255,.16), rgba(53,119,255,.10));
}

.center { justify-content: center; }

.contact {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 28px;
}

form {
  display: grid;
  gap: 14px;
}

input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(0,0,0,.25);
  color: var(--text);
  padding: 15px 16px;
  border-radius: 16px;
  font: inherit;
}

textarea { min-height: 140px; resize: vertical; }

footer {
  width: min(1180px, calc(100% - 32px));
  margin: 40px auto;
  border-top: 1px solid var(--line);
  padding: 25px 0;
  color: var(--muted);
  font-size: 14px;
}

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

@media (max-width: 850px) {
  .nav { align-items: flex-start; gap: 18px; flex-direction: column; }
  nav { gap: 16px; flex-wrap: wrap; }
  .hero, .split, .contact { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .hero { margin-top: 30px; }
  .hero-card { min-height: 360px; padding: 24px; }
  h1 { letter-spacing: -2px; }
  .floating-card { position: static; display: inline-block; margin: 14px 8px 0 0; }
}