/* =========================================
   NAV — Sticky Glassmorphism Navigation
   ========================================= */

.navbar {
  position: sticky;
  top: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 64px;
  background: rgba(7, 10, 18, 0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.navbar.scrolled {
  background: rgba(7, 10, 18, 0.95);
  box-shadow: 0 2px 24px rgba(0,0,0,0.4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 7px 14px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--surface);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: 0.3s;
}

.navbar-minimal {
  justify-content: space-between;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-actions { display: none; }
  .menu-toggle { display: flex; }

  .navbar.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px;
    left: 0; right: 0;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
    padding: 20px;
    gap: 4px;
  }
  .navbar.menu-open .nav-actions {
    display: flex;
    position: fixed;
    top: auto;
    bottom: 0;
    left: 0; right: 0;
    padding: 16px 20px;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    justify-content: center;
  }
}