/* Header #15 */
/* Announcement bar */
#header-15 .announcement {
  background: #0d6efd;
  color: #fff;
  text-align: center;
  font-size: 0.875rem;
  padding: 0.25rem 0;
}
#header-15 .announcement a {
  color: #fff;
  text-decoration: underline;
}
/* Header chính */
#header-15 {
  position: fixed;
  top: 0;
  width: 100%;
  transition: background 0.3s, box-shadow 0.3s;
  z-index: 999;
}
#header-15 .navbar {
  padding: 1rem 0;
}

#header-15 .navbar-brand img {
  max-height: 45px;
}

#header-15.transparent {
  background: transparent;
  box-shadow: none;
}
#header-15.solid {
  background: #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}
/* Nav link underline hover */
#header-15 .nav-link {
  position: relative;
  color: #333;
  transition: color 0.2s;
}
#header-15 .nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: #0d6efd;
  transition: width 0.3s;
}
#header-15 .nav-link:hover::after,
#header-15 .nav-link.active::after {
  width: 100%;
}
/* CTA button */
#header-15 .btn-cta {
  text-transform: uppercase;
  padding: 0.5rem 1.25rem;
  transition: transform 0.2s, box-shadow 0.2s;
}
#header-15 .btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}
/* Đệm cho nội dung trang khi header cố định */
body {
  padding-top: calc((1rem * 2) + 2.5rem);
}



#link-section-2 {
  position: relative;
  padding: 6rem 0;
  color: var(--text-color);
  overflow: hidden;
  text-align: center;
}
#link-section-2::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: var(--secondary-color);
  transform: rotate(-6deg);
}
#link-section-2 .container {
  position: relative;
  z-index: 1;
}
#link-section-2 .section-title {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}
#link-section-2 .section-subtitle {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  opacity: 0.85;
}
#link-section-2 .link-item {
  background: var(--primary-color);
  border: 2px solid var(--text-color);
  color: var(--text-color);
  border-radius: .5rem;
  padding: 1.25rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .3s, color .3s, transform .3s;
}
#link-section-2 .link-item:hover {
  background: var(--text-color);
  color: var(--primary-color);
  transform: translateY(-4px);
}
#link-section-2 .link-item i {
  margin-right: .5rem;
}





/* Footer-13 Styles - Minimalist, Text-Focused */
#footer-13 {
  background-color: #f8f9fa; /* Light grey background */
  color: #495057; /* Dark grey text */
  padding: 2.5rem 0;
  font-size: 0.875rem; /* Slightly smaller base font */
  border-top: 1px solid #dee2e6; /* Standard Bootstrap border color */
}
#footer-13 .footer-brand-info .site-name-link-f13 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #212529; /* Bootstrap's darker grey / almost black */
  text-decoration: none;
}
#footer-13 .footer-brand-info .site-name-link-f13:hover {
  color: #007bff; /* Standard Bootstrap primary color */
}
#footer-13 .footer-brand-info .site-logo-f13 {
  max-height: 40px;
  margin-right: 0.75rem; /* If logo and text name are side-by-side */
}
#footer-13 .footer-tagline-f13 {
  font-size: 0.9rem;
  color: #6c757d; /* Bootstrap's muted text color */
  margin-top: 0.25rem;
  margin-bottom: 1.5rem;
}
#footer-13 .footer-block-title-f13 {
  font-size: 0.95rem;
  font-weight: 500;
  color: #343a40; /* Darker grey for titles */
  margin-bottom: 0.75rem;
  margin-top: 1.5rem; /* Space between blocks */
}
#footer-13 .footer-block-title-f13:first-of-type {
  /* No top margin for the very first title */
  margin-top: 0;
}
#footer-13 .footer-link-list-f13 {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0; /* Reset default ul margin */
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start; /* Align left by default */
  gap: 0.5rem 1.25rem; /* row-gap column-gap */
}
#footer-13 .footer-link-list-f13 a {
  color: #007bff; /* Standard Bootstrap primary color */
  text-decoration: none;
}
#footer-13 .footer-link-list-f13 a:hover {
  color: #0056b3; /* Darker primary color on hover */
  text-decoration: underline;
}
#footer-13 .footer-copyright-f13 {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #e9ecef; /* Lighter border for copyright separation */
  text-align: center;
  font-size: 0.8rem;
  color: #6c757d;
}
#footer-13 .footer-copyright-f13 p {
  margin-bottom: 0;
}
/* Responsive: Stack elements and center text on smaller screens */
@media (max-width: 767.98px) {
  #footer-13 {
    text-align: center;
  }
  #footer-13 .footer-link-list-f13 {
    justify-content: center;
  }
  #footer-13 .footer-brand-info {
    margin-bottom: 1.5rem;
  }
}