nav {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 20px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--card-border);
  transition: var(--transition-smooth);
}

.logo {
  font-size: 1.8rem;
  color: #fff;
  font-weight: 700;
  line-height: 1;
}

.logo span {
  color: var(--accent-cyan);
}

.logo small {
  display: block;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 2px;
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 5%;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(0, 242, 255, 0.08), transparent 60%);
  z-index: -1;
}

section {
  padding: 100px 5%;
}