.a8-header {
  background-color: #1a1a1a;
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

.logo-container .logo {
  height: 40px;
  transition: transform 0.3s ease;
}

.logo-container .logo:hover {
  transform: scale(1.05);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.nav-item .nav-link {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
  padding: 0.5rem 0;
}

.nav-item .nav-link:hover {
  color: #4dabf7;
}

.nav-item .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #4dabf7;
  transition: width 0.3s ease;
}

.nav-item .nav-link:hover::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: white;
  transition: all 0.3s ease;
}

@media (max-width: 768px) {
  .nav-list {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .header-container {
    padding: 0 1rem;
  }
}