:root {
  --bg: #05060a;
  --fg: #e6e8ff;
  --accent: #7c7cff;
  --accent2: #00e5ff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background: radial-gradient(circle at top right, rgba(124,124,255,0.15), transparent 60%),
              var(--bg);
  color: var(--fg);
}

.header {
  position: fixed;
  width: 100%;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(5,6,10,0.85);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.logo {
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 0.2em;
  color: var(--accent);
}

.nav a {
  margin-left: 24px;
  text-decoration: none;
  color: var(--fg);
  opacity: 0.8;
}

.nav a:hover {
  color: var(--accent2);
  opacity: 1;
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.hero h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(3rem, 8vw, 6rem);
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  margin-top: 16px;
  opacity: 0.9;
}

.btn {
  margin-top: 40px;
  padding: 14px 36px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--fg);
  text-decoration: none;
}

.section {
  padding: 120px 10vw;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.card {
  padding: 40px;
  border-radius: 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  text-align: center;
}

.footer {
  padding: 40px;
  text-align: center;
  opacity: 0.7;
}