/* Header Styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  transition: background-color var(--transition-normal), 
              padding var(--transition-normal);
  padding: var(--spacing-md) 0;
}

.header.scrolled {
  background-color: var(--primary);
  padding: var(--spacing-sm) 0;
  box-shadow: var(--shadow-md);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo img {
  height: 40px;
  transition: all var(--transition-normal);
}

.header.scrolled .logo img {
  height: 35px;
}

/* Navigation */
.nav-menu {
  display: flex;
}

.nav-list {
  display: flex;
  gap: var(--spacing-lg);
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--white);
  font-weight: 500;
  font-size: 1rem;
  position: relative;
  padding: var(--spacing-xs) 0;
}

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

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

/* Search Container */
.search-container {
  display: flex;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md);
  padding: 8px 12px;
  transition: all var(--transition-normal);
}

.search-container:focus-within {
  background-color: rgba(255, 255, 255, 0.2);
}

.search-input {
  background: transparent;
  border: none;
  color: var(--white);
  padding: 0 var(--spacing-xs);
  width: 150px;
  outline: none;
  font-family: var(--body-font);
}

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

.search-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-btn img {
  width: 18px;
  height: 18px;
  filter: brightness(0) invert(1);
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
  z-index: 1001;
}

.mobile-menu-toggle span {
  width: 100%;
  height: 3px;
  background-color: var(--white);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
}

.mobile-menu-toggle.active span:first-child {
  transform: translateY(9px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:last-child {
  transform: translateY(-9px) rotate(-45deg);
}

/* Overlay for Mobile Navigation */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--primary);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

.mobile-nav-link {
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 500;
  text-transform: uppercase;
}