/* HEADER & NAVIGATION STYLES */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--neutral-white);
  box-shadow: var(--shadow-md);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* LOGO */
.logo {
  flex-shrink: 0;
  margin-right: var(--spacing-xl);
}

.logo-link {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0;
  white-space: nowrap;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.logo-link:hover {
  transform: translateY(-2px);
}

.logo-text {
  font-family: var(--font-family-display);
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--primary-blue);
  line-height: 1;
  margin-bottom: 0;
}

.logo-subtitle {
  display: none;
}

/* NAVIGATION MENU */
.nav-menu {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
  color: var(--text-dark);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
}

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

.nav-link:hover {
  color: var(--primary-blue);
}

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

.nav-link.active {
  color: var(--primary-blue);
}

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

/* DROPDOWN MENU */
.dropdown {
  position: relative;
}

.dropdown-toggle::after {
  content: none;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background-color: var(--neutral-white);
  border: 1px solid var(--neutral-medium-gray);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  list-style: none;
  margin: 0;
  padding: var(--spacing-sm) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  z-index: 1001;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--text-dark);
  text-decoration: none;
  font-weight: var(--font-weight-regular);
  transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
  background-color: var(--neutral-light-gray);
  color: var(--primary-blue);
  padding-left: calc(var(--spacing-lg) + 4px);
}

/* HEADER ACTIONS */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.header-actions .btn {
  display: none;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--primary-blue);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
  .nav-list {
    gap: var(--spacing-md);
  }
  
  .nav-link {
    padding: var(--spacing-sm);
  }
}

@media (max-width: 768px) {
  .header {
    height: var(--header-height-mobile);
  }
  
  .header-container {
    padding: 0 var(--spacing-md);
  }
  
  .logo {
    margin-right: auto;
  }
  
  .logo-text {
    font-size: 1.25rem;
  }
  
  .logo-subtitle {
    display: none;
  }
  
  .nav-menu {
    position: absolute;
    top: var(--header-height-mobile);
    left: 0;
    right: 0;
    background-color: var(--neutral-white);
    border-bottom: 1px solid var(--neutral-medium-gray);
    flex-direction: column;
    justify-content: flex-start;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
  }
  
  .nav-menu.active {
    max-height: 600px;
  }
  
  .nav-list {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }
  
  .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--neutral-light-gray);
  }
  
  .nav-link {
    padding: var(--spacing-md);
    display: block;
  }
  
  .nav-link::after {
    display: none;
  }
  
  .nav-link:hover {
    background-color: var(--neutral-light-gray);
  }
  
  .dropdown-menu {
    position: static;
    opacity: 0;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    border: none;
    box-shadow: none;
    background-color: var(--neutral-light-gray);
    transform: none;
    transition: max-height var(--transition-normal);
  }
  
  .dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    max-height: 500px;
  }
  
  .dropdown-menu a {
    padding-left: calc(var(--spacing-lg) + var(--spacing-lg));
  }
  
  .dropdown-menu a:hover {
    padding-left: calc(var(--spacing-lg) + var(--spacing-lg) + 4px);
  }
  
.dropdown-toggle::after {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .header-actions {
    gap: var(--spacing-sm);
  }
  
  .header-actions .btn {
    display: none;
  }
}

@media (max-width: 480px) {
  .header-container {
    padding: 0 var(--spacing-sm);
  }
  
  .logo-text {
    font-size: 1rem;
  }
  
  .logo-subtitle {
    font-size: 0.6rem;
  }
  
  .nav-link {
    padding: var(--spacing-md) var(--spacing-sm);
  }
  
  .dropdown-menu a {
    padding: var(--spacing-md) var(--spacing-sm);
    padding-left: calc(var(--spacing-lg) + var(--spacing-md));
  }
}

/* SCROLL EFFECT - Reduce header on scroll */
.header.scrolled {
  height: 70px;
  box-shadow: var(--shadow-lg);
}

.header.scrolled .logo-text {
  font-size: 1.25rem;
}

.header.scrolled .nav-link {
  padding: var(--spacing-xs) var(--spacing-md);
}