/* Header #13 */
#header-13 {
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  background-color: #fff;
  z-index: 1000;
}
#header-13 .navbar-brand img {
  max-height: 45px;
}
/* Đảm bảo container flex và items căn giữa */
#header-13 .container.d-flex {
  align-items: center;
}
/* Chừa khoảng giữa logo và collapse */
#header-13 .navbar-toggler {
  margin-left: auto;
}
/* Search input */
#header-13 .form-control {
  width: 240px;
  transition: width 0.3s;
}
#header-13 .form-control:focus {
  width: 300px;
}
@media (max-width: 767.98px) {
  #header-13 .form-control {
    width: 140px;
  }
  #header-13 .form-control:focus {
    width: 180px;
  }
}
#header-13 .btn-contact {
  text-transform: uppercase;
  padding: 0.5rem 1rem;
}
#header-13 .nav-link {
  color: #333;
}
#header-13 .nav-link.active {
  color: #0d6efd;
  font-weight: 500;
}



#link-section-6 {
  position: relative;
  overflow: hidden;
  padding: 6rem 0;
  color: #fff;
  text-align: center;
}

/* Animated gradient background */
#link-section-6::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    45deg,
    var(--gc1),
    var(--gc2),
    var(--gc3),
    var(--gc4)
  );
  background-size: 600% 600%;
  animation: gradientBG var(--anim-duration) ease infinite;
  z-index: -1;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

#link-section-6 .section-title {
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
}

#link-section-6 .section-subtitle {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  opacity: 0.85;
}

#link-section-6 .link-item {
  background: rgba(255,255,255,0.2);
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-decoration: none;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s, transform 0.3s;
}

#link-section-6 .link-item:hover {
  background: rgba(255,255,255,0.35);
  transform: translateY(-4px);
}

#link-section-6 .link-item i {
  font-size: 1.25rem;
  margin-right: 0.5rem;
}






/* Footer-2 Fully Revised Styles */
#footer-2 {
  background-color: var(--footer-bg-color, #343a40);
  color: var(--footer-text-color, #f8f9fa);
  padding: 3.5rem 0 2.5rem 0; /* Added bottom padding */
  font-size: 0.9rem;
}
#footer-2 .footer-logo {
  max-height: 50px;
  margin-bottom: 1rem;
  /* If logo is dark and needs to be light on dark BG */
  /* filter: brightness(0) invert(1) opacity(0.9);*/
}
#footer-2 .brand-column-text {
  font-size: 0.85rem;
  line-height: 1.6;
  opacity: 0.8;
  margin-bottom: 1.5rem;
}
#footer-2 .social-icons-inline a {
  color: var(--footer-text-color, #f8f9fa);
  margin-right: 1rem;
  font-size: 1.3rem;
  opacity: 0.7;
  transition: opacity 0.2s ease-in-out, color 0.2s ease-in-out;
}
#footer-2 .social-icons-inline a:last-child {
  margin-right: 0;
}
#footer-2 .social-icons-inline a:hover {
  opacity: 1;
  color: var(--footer-link-color, #17a2b8);
}
#footer-2 .footer-column-title {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--footer-title-color, #ffffff);
  margin-bottom: 1.2rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--footer-link-color, #17a2b8);
  display: inline-block; /* To make border only as wide as text */
}
#footer-2 .footer-navigation-list {
  list-style: none;
  padding-left: 0;
}
#footer-2 .footer-navigation-list li {
  margin-bottom: 0.6rem;
}
#footer-2 .footer-navigation-list a {
  color: var(--footer-link-color, #17a2b8);
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
#footer-2 .footer-navigation-list a:hover,
#footer-2 .footer-navigation-list a.active {
  color: var(--footer-link-hover-color, #138496);
  padding-left: 5px;
}
#footer-2 .contact-details-list p,
#footer-2 .contact-details-list a {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--footer-text-color, #f8f9fa);
  opacity: 0.9;
  text-decoration: none;
}
#footer-2 .contact-details-list i {
  width: 18px;
  margin-right: 8px;
  color: var(--footer-link-color, #17a2b8);
}
#footer-2 .contact-details-list a:hover {
  color: var(--footer-link-hover-color, #138496);
  opacity: 1;
}
#footer-2 .footer-copyright-section {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1); /* Separator for copyright */
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.7;
}
#footer-2 .footer-copyright-section p {
  margin-bottom: 0;
}
/* Responsive */
@media (max-width: 767.98px) {
  #footer-2 .footer-column {
    margin-bottom: 2rem;
  }
  #footer-2 .footer-logo,
  #footer-2 .social-icons-inline {
    display: block;
    text-align: center; /* Center logo and social icons on mobile */
  }
  #footer-2 .social-icons-inline a {
    margin: 0 0.5rem; /* Adjust spacing for centered icons */
  }
  #footer-2 .brand-column-text {
    text-align: center;
  }
}