/* Header styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.header.transparent {
  background-color: transparent;
  box-shadow: none;
}

.header.transparent .nav-menu a {
  color: var(--white);
}

.header.transparent .search-bar input {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--white);
}

.header.transparent .search-bar input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.header.transparent .search-bar button svg path {
  stroke: var(--white);
}

.header.transparent .hamburger span {
  background-color: var(--white);
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 40px;
}

.nav-menu ul {
  display: flex;
  gap: var(--spacing-md);
}

.nav-menu a {
  color: var(--primary);
  font-weight: 500;
  padding: var(--spacing-xs) 0;
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition-normal);
}

.nav-menu a.active::after,
.nav-menu a:hover::after {
  width: 100%;
}

.search-bar {
  display: flex;
  align-items: center;
}

.search-bar input {
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius-md);
  background-color: var(--light-gray);
  font-size: 0.875rem;
  width: 180px;
  transition: var(--transition-normal);
}

.search-bar input:focus {
  width: 220px;
  outline: none;
  border-color: var(--primary);
}

.search-bar button {
  background: none;
  border: none;
  cursor: pointer;
  margin-left: -30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition-normal);
}

@media (max-width: 992px) {
  .header {
    padding: var(--spacing-md);
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background-color: var(--white);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2xl) var(--spacing-md);
    transition: var(--transition-normal);
    z-index: 1001;
  }
  
  .nav-menu.open {
    right: 0;
  }
  
  .nav-menu ul {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .nav-menu a {
    font-size: 1.25rem;
  }
  
  .search-bar {
    margin-right: var(--spacing-md);
  }
  
  .hamburger {
    display: flex;
    z-index: 1002;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
}

@media (max-width: 768px) {
  .logo img {
    height: 32px;
  }
  
  .search-bar input {
    width: 140px;
  }
  
  .search-bar input:focus {
    width: 180px;
  }
}

@media (max-width: 576px) {
  .search-bar {
    display: none;
  }
}