/* ============================================
   PIXELGUARD - NAVIGATION STYLES
   Styles for header and navigation components
   ============================================ */

.main-header {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-gray-200);
}

.navigation-bar {
  width: 100%;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  transition: transform var(--transition-base);
}

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

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}

.brand-name {
  font-size: var(--font-size-xl);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation Links */
.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-link {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-gray-600);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-gray-200);
  background: var(--color-white);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.theme-toggle__icon {
  font-size: 1.1rem;
  line-height: 1;
  display: none;
}

[data-theme="light"] .theme-toggle__icon--moon,
[data-theme=""] .theme-toggle__icon--moon,
:root:not([data-theme]) .theme-toggle__icon--moon {
  display: inline;
}

[data-theme="dark"] .theme-toggle__icon--sun {
  display: inline;
}

.nav-link:hover {
  color: var(--color-primary);
  background: var(--color-gray-50);
}

.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -1rem;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

/* Dropdown Navigation */
.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: var(--spacing-sm);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  list-style: none;
  padding: var(--spacing-sm);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  z-index: 1000;
  border: 1px solid var(--color-gray-200);
}

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

.dropdown-item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-gray-700);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.dropdown-item:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
  transform: translateX(4px);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
  }

  .nav-links {
    width: 100%;
    justify-content: center;
    gap: var(--spacing-sm);
  }

  .nav-right {
    width: 100%;
    justify-content: center;
  }

  .nav-link {
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  .brand-name {
    font-size: var(--font-size-lg);
  }

  .logo-icon {
    width: 28px;
    height: 28px;
  }
}