/* ============================================================
   navigation.css
   Top nav bar, logo, links, mobile menu toggle.
   ============================================================ */

nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 32px;
  background: rgba(3, 3, 5, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.nav-container {
  max-width: 1400px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
}
.logo {
  font-family: var(--font-mono); font-size: 1.4rem; font-weight: 500;
  color: var(--accent); letter-spacing: 2px;
  text-shadow: 0 0 20px var(--accent-glow);
}
.logo span { color: var(--text); }
.nav-links {
  display: flex; gap: 32px; list-style: none;
}
.nav-links a {
  color: var(--text-dim); font-size: 0.9rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 1px;
  position: relative; padding: 4px 0;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 1px;
  background: var(--accent); transition: var(--transition);
  box-shadow: 0 0 8px var(--accent-glow);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.menu-toggle {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 8px;
}
.menu-toggle span {
  display: block; width: 24px; height: 2px; background: var(--text);
  transition: var(--transition);
}