nav {
  position: sticky; top: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.2rem 5%;
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo { display: flex; align-items: center; gap: 0.6rem; font-size: 1.4rem; font-weight: 800; letter-spacing: -0.5px; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: grid; place-items: center; font-size: 1.1rem;
}
.nav-links { display: flex; gap: 2rem; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 0.95rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
@media (max-width: 768px) { .nav-links { display: none; } }

section { padding: 5rem 5%; max-width: 1200px; margin: 0 auto; }

.section-title { text-align: center; margin-bottom: 3rem; }
.section-title h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 800;
  letter-spacing: -1px; margin-bottom: 0.8rem;
}
.section-title p { color: var(--muted); max-width: 600px; margin: 0 auto; }

footer {
  text-align: center; padding: 2.5rem 5%;
  border-top: 1px solid var(--border);
  color: var(--muted); font-size: 0.9rem;
}
footer a { color: var(--primary-glow); text-decoration: none; }

.bg-orbs { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.orb { position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.3; }
.orb-1 { width: 500px; height: 500px; background: var(--primary); top: -200px; left: -150px; }
.orb-2 { width: 400px; height: 400px; background: var(--accent); bottom: -150px; right: -100px; }