/* ══════════════════════════════════════════════════════════════
   UNIFIED NAVIGATION — One nav to rule them all
   Requires: tokens.css, base.css
══════════════════════════════════════════════════════════════ */

.page-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: var(--nav-height);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(2,1,10,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
}

/* ── Brand ── */
.nav-brand {
  font-family: var(--font-terminal);
  font-size: 24px;
  color: var(--accent2);
  text-decoration: none;
  letter-spacing: 1px;
  flex-shrink: 0;
}
.nav-brand .accent { color: var(--accent); }
.nav-brand:hover { color: var(--accent2); }

/* ── Links ── */
.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
  align-items: center;
}
.nav-links a {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text2);
  text-decoration: none;
  border-radius: 4px;
  transition: all var(--duration) var(--ease);
  border-bottom: 2px solid transparent;
}
.nav-links a:hover {
  color: var(--text);
  background: rgba(180,138,255,0.06);
}
.nav-links a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Auth Section ── */
.nav-auth {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nav-user {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.nav-auth-btn {
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  border-radius: 4px;
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
  text-decoration: none;
  transition: all var(--duration) var(--ease);
  cursor: pointer;
}
.nav-auth-btn:hover {
  background: var(--accent-dim);
  color: var(--accent);
}
.nav-auth-btn.logout {
  border-color: var(--border2);
  color: var(--text2);
}
.nav-auth-btn.logout:hover {
  border-color: var(--hot);
  color: var(--hot);
}

/* ── Hamburger ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  z-index: 110;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: all 0.3s var(--ease);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── Mobile Menu ── */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  top: var(--nav-height);
  background: rgba(2,1,10,0.98);
  backdrop-filter: blur(20px);
  flex-direction: column;
  padding: 24px;
  gap: 4px;
  z-index: 99;
  overflow-y: auto;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  display: block;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: color var(--duration) var(--ease);
}
.mobile-nav a:hover { color: var(--accent); }
.mobile-nav a.active { color: var(--accent); }
.mobile-nav .mobile-auth {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--border2);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .page-nav { padding: 0 16px; }
  .nav-links { display: none; }
  .nav-auth { display: none; }
  .hamburger { display: flex; }
}