/* ============================================================
   Clavora — nav.css
   Fixed top nav with dropdown, mobile drawer, scroll background.
   ============================================================ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: padding var(--tx), background var(--tx), border-color var(--tx);
}
.nav.scrolled {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: saturate(1.4) blur(18px);
  -webkit-backdrop-filter: saturate(1.4) blur(18px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.nav-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  display: flex; align-items: center; gap: 8px;
}
.nav-logo::before {
  content: '';
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 12px var(--accent-primary);
  animation: pulse 2s infinite;
}
.nav-logo:hover { color: var(--text-primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links a, .nav-dropdown > a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: 6px;
  transition: all var(--tx);
}
.nav-links a:hover, .nav-dropdown > a:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.nav-links a.active { color: var(--accent-primary); }

/* Dropdown */
.nav-dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px); left: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  min-width: 260px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--tx);
  display: flex;
  flex-direction: column;
  gap: 2px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 10px 14px;
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  background: transparent !important;
}
.dropdown-menu a:hover { color: var(--accent-primary); background: var(--bg-tertiary) !important; }

.nav-cta { display: flex; gap: 10px; align-items: center; }
.nav-mobile-toggle {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 1.1rem;
  align-items: center;
  justify-content: center;
}

/* Mobile drawer */
@media (max-width: 980px) {
  .nav-links { display: none; }
  .nav-mobile-toggle { display: inline-flex; }
  .nav-cta .btn { display: none; }

  .nav.open .nav-mobile-drawer {
    transform: translateX(0);
  }
  .nav-mobile-drawer {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: min(360px, 88vw);
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform var(--tx);
    padding: 80px 24px 32px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .nav-mobile-drawer a {
    padding: 14px 12px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-mobile-drawer a:hover { color: var(--accent-primary); }
  .nav-mobile-drawer .group-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding: 18px 12px 6px;
    border-bottom: none;
  }
  .nav-mobile-drawer .btn {
    margin-top: 18px;
    justify-content: center;
  }
}
@media (min-width: 981px) {
  .nav-mobile-drawer { display: none; }
}