.navigation {
  background: #ffffff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1rem 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.navigation-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #2563eb;
  margin: 0;
}

.navigation-menu {
  display: flex;
  gap: 2rem;
  flex: 1;
  justify-content: center;
}

.navigation-link {
  text-decoration: none;
  color: #4b5563;
  font-weight: 500;
  transition: color 0.3s;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
}

.navigation-link:hover {
  color: #2563eb;
}

.navigation-link.active {
  color: #2563eb;
  border-bottom-color: #2563eb;
}

.design-switcher-btn {
  background: #2563eb;
  color: white;
  padding: 0.5rem 1.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.3s;
}

.design-switcher-btn:hover {
  background: #1d4ed8;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.language-toggle {
  background: #2563eb;
  color: white;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.25rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s;
}

.language-toggle:hover {
  background: #1d4ed8;
}

.burger-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 101;
}

.burger-line {
  width: 25px;
  height: 3px;
  background: #2563eb;
  border-radius: 3px;
  transition: all 0.3s ease;
}

.burger-line.open:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.burger-line.open:nth-child(2) {
  opacity: 0;
}

.burger-line.open:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 768px) {
  .burger-menu {
    display: flex;
  }

  .navigation-content {
    flex-wrap: wrap;
  }

  .navigation-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }

  .navigation-menu.open {
    display: flex;
  }

  .navigation-link {
    padding: 1rem 2rem;
    border-bottom: 1px solid #f3f4f6;
  }

  .navigation-link:last-child {
    border-bottom: none;
  }
}