:root {
  --bg: #050817;
  --bg-2: #08142c;
  --panel: rgba(255, 255, 255, 0.075);
  --panel-2: rgba(255, 255, 255, 0.11);
  --text: #f4f7ff;
  --muted: #aeb9d4;
  --line: rgba(255, 255, 255, 0.14);
  --blue: #000066;
  --cyan: #42d9ff;
  --cyan-2: #7df0ff;
  --white: #ffffff;
  --radius: 22px;
  --shadow: 0 22px 80px rgba(0, 0, 40, 0.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, rgba(66, 217, 255, 0.18), transparent 30%),
    radial-gradient(circle at 85% 5%, rgba(0, 0, 102, 0.65), transparent 32%),
    linear-gradient(135deg, var(--bg), var(--bg-2));
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.narrow { max-width: 900px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(5, 8, 23, 0.68);
  border-bottom: 1px solid var(--line);
}
.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: inline-flex; align-items: center; gap: 14px; font-weight: 800; letter-spacing: -0.03em; }
.brand-text { font-size: 1.55rem; }
.brand-text sup { color: var(--cyan); }
.brand-symbol, .orbit-symbol {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 44px;
}
.brand-symbol span, .orbit-symbol span {
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  border: 5px solid transparent;
}
.brand-symbol span:nth-child(1), .orbit-symbol span:nth-child(1) { border-top-color: var(--cyan); transform: rotate(12deg); }
.brand-symbol span:nth-child(2), .orbit-symbol span:nth-child(2) { border-right-color: var(--white); transform: rotate(18deg); opacity: .9; }
.brand-symbol span:nth-child(3), .orbit-symbol span:nth-child(3) { border-bottom-color: #6d7898; transform: rotate(22deg); }
.nav-contact { color: var(--cyan-2); font-weight: 650; }

.hero { padding: 88px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.eyebrow { color: var(--cyan-2); text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; font-weight: 750; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2.7rem, 7vw, 5.8rem); line-height: .94; letter-spacing: -0.07em; margin-bottom: 26px; }
h2 { font-size: clamp(2rem, 4vw, 3.3rem); line-height: 1; letter-spacing: -0.05em; margin-bottom: 24px; }
h3 { font-size: 1.1rem; margin-bottom: 10px; }
p { color: var(--muted); line-height: 1.72; font-size: 1.03rem; }
.lead { font-size: 1.25rem; max-width: 720px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button {
  display: inline-flex;
  border: 0;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 750;
  cursor: pointer;
}
.button.primary { background: linear-gradient(135deg, var(--cyan), #ffffff); color: #071024; box-shadow: 0 12px 40px rgba(66, 217, 255, .28); }
.button.secondary { background: var(--panel); border: 1px solid var(--line); color: var(--text); }

.hero-card {
  min-height: 430px;
  border: 1px solid var(--line);
  background: linear-gradient(145deg, var(--panel), rgba(255,255,255,.035));
  border-radius: calc(var(--radius) + 12px);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.hero-card::before {
  content: "";
  position: absolute;
  inset: -30%;
  background:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 34px 34px;
  transform: perspective(700px) rotateX(58deg) translateY(60px);
}
.orbit-symbol { width: 210px; height: 210px; filter: drop-shadow(0 0 34px rgba(66,217,255,.25)); z-index: 1; }
.orbit-symbol span { inset: 14px; border-width: 22px; }
.method-list {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  z-index: 2;
}
.method-list div {
  background: rgba(5,8,23,.66);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
}
.method-list strong { display: block; color: var(--cyan-2); margin-bottom: 6px; }
.method-list span { color: var(--muted); font-size: .9rem; }

.section { padding: 78px 0; border-top: 1px solid var(--line); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 34px 0; }
.feature-grid article, .contact-form {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.feature-grid p { font-size: .95rem; }
.contact-section { background: rgba(255,255,255,.035); }
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form label { display: grid; gap: 8px; }
.contact-form .full { grid-column: 1 / -1; }
.contact-form span { font-weight: 700; color: var(--text); }
input, textarea {
  width: 100%;
  color: var(--text);
  background: rgba(5, 8, 23, 0.78);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 15px;
  font: inherit;
  outline: none;
}
textarea { resize: vertical; }
input:focus, textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(66,217,255,.12); }
small { color: var(--muted); text-align: right; }

.site-footer { border-top: 1px solid var(--line); padding: 28px 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 18px; justify-content: center; color: var(--muted); font-size: .95rem; }
.footer-links a:hover { color: var(--cyan-2); }

@media (max-width: 860px) {
  .hero-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; }
  .hero-card { min-height: 340px; }
  .feature-grid { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .container { width: min(100% - 28px, 1160px); }
  .method-list { grid-template-columns: 1fr; }
  .hero-card { min-height: 440px; }
  .nav { min-height: 66px; }
  .brand-text { font-size: 1.25rem; }
}