.site-header {
  background: rgba(5, 12, 22, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 212, 170, 0.25);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 2rem;
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.brand-logo {
  height: 42px;
  width: auto;
  transition: all 0.25s ease;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.desktop-nav a {
  color: #b4c2e0;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.6rem 1rem;
  border-radius: 40px;
  transition: all 0.2s ease;
}

.desktop-nav a:hover {
  color: #00d4aa;
  background: rgba(0, 212, 170, 0.08);
  transform: translateY(-1px);
}

.btn-join-premium {
  background: linear-gradient(135deg, #00d4aa, #0099cc);
  color: white !important;
  padding: 0.7rem 1.5rem !important;
  border-radius: 60px !important;
  font-weight: 700 !important;
  font-size: 0.9rem !important;
  box-shadow: 0 4px 15px rgba(0, 212, 170, 0.35);
  transition: all 0.3s ease !important;
  display: inline-flex !important;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.btn-join-premium:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 25px rgba(0, 212, 170, 0.5);
  gap: 12px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-btn {
  background: rgba(0, 212, 170, 0.12);
  border: 1px solid rgba(0, 212, 170, 0.35);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #00d4aa;
}

.mobile-nav {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: rgba(5, 12, 22, 0.98);
  backdrop-filter: blur(20px);
  padding: 1.5rem;
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  transform: translateY(-120%);
  transition: transform 0.35s cubic-bezier(0.2, 0.9, 0.4, 1.1);
  z-index: 999;
  border-bottom: 1px solid rgba(0, 212, 170, 0.25);
}

.mobile-nav.show {
  display: flex;
  transform: translateY(0);
}

.mobile-nav a {
  color: #e2eaff;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-nav a i {
  width: 24px;
  color: #00d4aa;
}

.mobile-nav .btn-join-mobile {
  background: linear-gradient(135deg, #00d4aa, #0099cc);
  margin-top: 0.75rem;
  justify-content: center;
  font-weight: 700;
  color: white !important;
  border-radius: 60px;
}

@media (max-width: 1024px) {
  .desktop-nav { display: none; }
  .menu-btn { display: flex; }
  .brand-logo { height: 38px; }
}

@media (min-width: 1025px) {
  .mobile-nav { display: none !important; }
}

@media (max-width: 550px) {
  .nav-wrap { padding: 0.6rem 1rem; }
  .brand-logo { height: 32px; }
  .btn-join-premium { padding: 0.55rem 1.2rem !important; font-size: 0.8rem !important; }
}