:root {
  --primary:#0a1f44;
  --secondary:#1f6feb;
  --accent:#00c2ff;
  --bg:#0b1020;
  --text:#e6e9ef;
  --muted:#9aa4b2;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(160deg, var(--bg), #050814);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }

/* Header */
header {
  padding: 24px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 120px;
}

nav a {
  margin-left: 24px;
  color: var(--muted);
}
nav a:hover { color: var(--text); }

/* Sections */
section {
  max-width: 1200px;
  margin: auto;
  padding: 80px 48px;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
}

.hero p { color: var(--muted); }

.cta {
  display: inline-block;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
}

.cta.secondary {
  background: transparent;
  border: 1px solid var(--secondary);
  margin-left: 16px;
}

/* Cards */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.card {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  padding: 28px;
}

/* Footer */
footer {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 40px 48px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
}

/* Responsive */
@media(max-width:900px){
  .hero { grid-template-columns: 1fr; }
  header { padding: 24px; }
  section { padding: 64px 24px; }
}