/* =============================================
   NAVBAR.CSS — Top bar & Navigation
   ============================================= */

/* ---- Top bar ---- */
.topbar {
  background: var(--color-bg-3);
  color: var(--color-text-muted);
  font-size: var(--fs-xs);
  font-weight: 500;
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  padding: 0.5rem var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  letter-spacing: 0.05em;
}

.topbar a {
  color: var(--color-accent);
  transition: opacity var(--transition-fast);
}

.topbar a:hover {
  opacity: 0.7;
}

/* ---- Navbar ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--navbar-height);
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: 0 4px 32px rgba(0,0,0,0.6);
}

/* ---- Logo ---- */
.logo {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.logo-img {
  height: 44px;
  width: auto;
  display: block;
  border-radius: 8px;
}

.logo-zeal  { color: var(--color-white); }
.logo-effect { color: var(--color-accent); }

.footer-logo {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
  display: inline-flex;
  gap: 2px;
}

/* ---- Nav links ---- */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-links li {
  position: relative;
}

.nav-links a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  transition: color var(--transition-fast);
  padding: 0.3rem 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-white);
}

.nav-links a.active::after {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  margin-top: 2px;
  border-radius: 2px;
}

/* ---- Apply Now CTA in nav ---- */
.nav-cta {
  background: var(--color-accent) !important;
  color: var(--color-dark) !important;
  padding: 0.45rem 1.2rem !important;
  border-radius: var(--radius-full);
  font-weight: 700 !important;
  font-size: var(--fs-sm) !important;
  transition: all var(--transition-base) !important;
}

.nav-cta:hover {
  background: transparent !important;
  color: var(--color-accent) !important;
  box-shadow: 0 0 0 2px var(--color-accent);
}

/* ---- Dropdowns ---- */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-width: 220px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  z-index: 999;
}

.dropdown:hover .dropdown-menu {
  display: block;
  animation: fadeDown 0.2s ease;
}

.dropdown-menu li a {
  display: block;
  padding: 0.65rem 1.2rem;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  transition: background var(--transition-fast), color var(--transition-fast);
  border-bottom: 1px solid var(--color-border);
}

.dropdown-menu li:last-child a {
  border-bottom: none;
}

.dropdown-menu li a:hover {
  background: var(--color-accent-dim);
  color: var(--color-accent);
}

/* ---- Hamburger ---- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px;
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hamburger { display: flex; }

  .nav-links {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--color-bg-2);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) var(--space-lg);
    gap: var(--space-sm);
  }

  .nav-links.open {
    display: flex;
  }

  .dropdown-menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding-left: var(--space-sm);
  }

  .dropdown:hover .dropdown-menu,
  .dropdown.open .dropdown-menu {
    display: block;
  }

  .topbar {
    gap: var(--space-sm);
    font-size: 0.65rem;
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ---- Animation ---- */
@keyframes fadeDown {
  from { opacity: 0; transform: translateX(-50%) translateY(-8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}