/* 
 * Enhanced Header Styles for Bixing Technology
 * Dark/blue themed with futuristic technology elements
 */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  margin: 0;
  padding: 6px 0;
  background-color: rgba(10, 16, 32, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header.scrolled {
  background-color: rgba(10, 16, 32, 0.95);
  padding: 4px 0;
}

.navbar-brand {
  display: flex;
  align-items: center;
  position: relative;
  z-index: 2;
}

.logo {
  height: 48px;
  margin-right: 15px;
  filter: drop-shadow(0 0 5px rgba(0, 168, 255, 0.5));
  transition: all 0.3s ease;
}

.navbar-brand:hover .logo {
  filter: drop-shadow(0 0 8px rgba(0, 168, 255, 0.8));
  transform: scale(1.05);
}

.navbar-brand span {
  font-weight: 700;
  font-size: 1.8rem; /* Reduced from 2.2rem for a more balanced appearance */
  background: linear-gradient(to right, #FFFFFF, #00A8FF);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  letter-spacing: 0.5px;
  text-shadow: 0 0 15px rgba(0, 168, 255, 0.3); /* Added subtle text shadow for emphasis */
}

.navbar-dark .navbar-nav {
  margin-left: auto;
}

.navbar-dark .navbar-nav .nav-item {
  position: relative;
  margin: 0 2px;
}

.navbar-dark .navbar-nav .nav-link {
  color: var(--white);
  padding: 8px 16px;
  font-weight: 500;
  transition: all 0.3s ease;
  border-radius: 6px;
  position: relative;
  z-index: 1;
}

.navbar-dark .navbar-nav .nav-link::before {
  content: none;
}

.navbar-dark .navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, #FFD700, #FF8C00); /* Golden orange gradient */
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
  color: #FFD700; /* Golden color */
  background: transparent;
}

.navbar-dark .navbar-nav .nav-link:hover::after,
.navbar-dark .navbar-nav .nav-link.active::after {
  width: 80%;
}

.dropdown-menu {
  background-color: rgba(30, 41, 59, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  padding: 10px;
  margin-top: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
}

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

.dropdown-item {
  color: var(--white);
  padding: 8px 16px;
  border-radius: 4px;
  transition: all 0.2s ease;
  position: relative;
  z-index: 1;
}

.dropdown-item::before {
  content: none;
}

.dropdown-item:hover {
  background-color: transparent;
  color: #FFD700; /* Golden color */
  transform: translateX(5px);
}

.language-selector {
  margin-left: 15px;
}

.language-selector button {
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.2), rgba(112, 0, 255, 0.2));
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--white);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.language-selector button::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: rotate(45deg);
  animation: shimmer 3s infinite;
  z-index: -1;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%) rotate(45deg);
  }
  100% {
    transform: translateX(100%) rotate(45deg);
  }
}

.language-selector button:hover {
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.3), rgba(112, 0, 255, 0.3));
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.language-changed {
  animation: pulse 0.5s ease-in-out;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.navbar-toggler {
  border: none;
  background: transparent;
  padding: 0;
  position: relative;
  z-index: 1050; /* Higher z-index to ensure visibility */
}

.navbar-toggler:focus {
  box-shadow: none;
  outline: none;
}

.navbar-toggler-icon {
  background-image: none;
  position: relative;
  width: 30px;
  height: 24px;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after,
.navbar-toggler-icon span {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(to right, var(--accent-blue), var(--accent-purple));
  transition: all 0.3s ease;
}

.navbar-toggler-icon::before {
  top: 0;
}

.navbar-toggler-icon span {
  top: 50%;
  transform: translateY(-50%);
}

.navbar-toggler-icon::after {
  bottom: 0;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
  transform: translateY(11px) rotate(45deg);
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon span {
  opacity: 0;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
  transform: translateY(-11px) rotate(-45deg);
}

@media (max-width: 991.98px) {
  .navbar-collapse {
    background-color: rgba(10, 16, 32, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    padding: 15px;
    margin-top: 0;
    position: absolute;
    top: 100%;
    right: 0;
    width: auto;
    min-width: 200px;
    max-width: 300px;
    z-index: 1030;
  }
  
  .navbar-dark .navbar-nav .nav-item {
    margin: 5px 0; /* Reduced for more compact appearance */
  }
  
  .navbar-dark .navbar-nav .nav-link {
    padding: 8px 12px; /* Reduced padding for more compact appearance */
    font-size: 15px; /* Slightly smaller font size */
    display: block; /* Full width for easier tapping */
    white-space: nowrap; /* Prevent text wrapping */
  }
  
  .dropdown-menu {
    background-color: rgba(30, 41, 59, 0.5);
    border: none;
    box-shadow: none;
    padding: 3px 0 3px 10px; /* Reduced padding */
    margin-top: 2px;
    margin-left: 10px; /* Indent dropdown items */
    opacity: 1;
    visibility: visible;
    transform: none;
    width: auto;
  }
  
  .dropdown-item {
    padding: 6px 10px; /* Reduced padding for more compact appearance */
    color: rgba(255, 255, 255, 0.8);
    border-radius: 6px;
    font-size: 14px; /* Slightly smaller font size */
  }
  
  /* Move language selector to top of mobile menu for better accessibility */
  .language-selector {
    margin: 0 0 8px 0; /* Reduced margin */
    display: block;
    text-align: right; /* Right-aligned to match menu position */
  }
  
  .language-selector button {
    padding: 6px 12px; /* Smaller touch target for compact design */
    font-size: 13px;
    width: auto; /* Auto width instead of full width */
    min-width: 60px;
  }
}

@media (max-width: 768px) {
  .navbar-brand span {
    font-size: 1.5rem; /* Further reduced size for better fit */
    max-width: 100%; /* Allow text to use available space */
    white-space: normal; /* Allow text to wrap if needed */
    overflow: visible; /* Ensure text is not cut off */
    text-overflow: clip; /* Don't use ellipsis */
    display: inline-block; /* Better text handling */
    padding-right: 5px; /* Reduced space between text and hamburger */
  }
  
  .logo {
    height: 36px; /* Smaller logo */
    margin-right: 8px; /* Reduced margin */
    flex-shrink: 0; /* Prevent logo from shrinking */
  }
  
  /* Make hamburger menu even smaller */
  .navbar-toggler {
    padding: 4px; /* Minimal padding */
    margin-right: 0; /* Remove right margin */
    margin-left: 0; /* Remove left margin */
    flex-shrink: 0; /* Prevent toggler from shrinking */
    width: auto; /* Allow natural width */
  }
  
  .navbar-toggler-icon {
    width: 22px; /* Smaller width */
    height: 18px; /* Smaller height */
  }
  
  /* Improve container layout */
  .navbar > .container-fluid {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center; /* Center the content */
    align-items: center;
    padding-left: 10px; /* Reduce left padding */
    padding-right: 10px; /* Reduce right padding */
  }
  
  .navbar-brand {
    flex: 0 1 auto; /* Allow brand to shrink but not grow */
    margin-right: 0; /* Remove right margin */
    display: flex;
    align-items: center;
    justify-content: center; /* Center content */
    text-align: center; /* Center text */
  }
  
  .navbar-toggler {
    order: 2; /* Ensure proper ordering */
    position: absolute; /* Position absolutely */
    right: 15px; /* Increased distance from right edge to ensure full visibility */
    top: 50%; /* Center vertically */
    transform: translateY(-50%); /* Center vertically */
    z-index: 1001; /* Ensure hamburger menu appears above other elements */
    display: block; /* Ensure visibility */
  }
  
  .navbar-collapse {
    order: 3; /* Ensure collapse appears below the header */
    flex-basis: 100%; /* Full width */
  }
}

@media (max-width: 576px) {
  /* Additional adjustments for very small screens */
  .navbar-brand span {
    font-size: 1.2rem; /* Even smaller brand name on mobile */
    max-width: 100%; /* Allow text to use available space */
  }
  
  .logo {
    height: 30px; /* Even smaller logo */
    margin-right: 5px; /* Minimal margin */
  }
  
  /* Make hamburger menu even smaller on very small screens */
  .navbar-toggler {
    padding: 3px; /* Minimal padding */
    right: 10px; /* Adjust position from edge */
    z-index: 1001; /* Ensure hamburger menu appears above other elements */
    display: block; /* Ensure visibility */
  }
  
  .navbar-toggler-icon {
    width: 20px; /* Smaller width */
    height: 16px; /* Smaller height */
  }
  
  .header {
    padding: 6px 0; /* Reduced padding */
  }
  
  /* Further prevent layout shift on very small screens */
  .navbar > .container-fluid {
    padding-left: 8px; /* Minimal left padding */
    padding-right: 40px; /* Further increased right padding to accommodate hamburger icon */
    position: relative; /* Establish positioning context */
  }
}