/* 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-3 {
  background-color: var(--footer-bg-color, #ffffff);
  color: var(--footer-text-color, #555555);
  padding: 3rem 0;
  text-align: center; /* Default center alignment */
  font-size: 0.9rem;
}
#footer-3 .footer-logo-main {
  max-height: 60px;
  margin-bottom: 0.75rem;
}
#footer-3 .footer-tagline {
  font-size: 1rem;
  color: var(--footer-text-color, #555555);
  opacity: 0.8;
  margin-bottom: 2rem;
}
#footer-3 .footer-block-title {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--footer-text-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}
#footer-3 .footer-block-title:first-child {
  margin-top: 0;
}
#footer-3 .footer-main-menus ul,
#footer-3 .footer-partner-links ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.5rem; /* row-gap column-gap */
}
#footer-3 .footer-main-menus a,
#footer-3 .footer-partner-links a {
  color: var(--footer-link-color, #0066cc);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}
#footer-3 .footer-main-menus a:hover,
#footer-3 .footer-main-menus a.active,
#footer-3 .footer-partner-links a:hover {
  color: var(--footer-link-hover-color, #004c99);
  text-decoration: underline;
}
#footer-3 .footer-separator {
  border-top: 1px solid var(--footer-separator-color, #dddddd);
  margin: 2rem auto; /* Centered separator */
  width: 80%;
  max-width: 600px;
}
#footer-3 .footer-social-icons-list a {
  color: var(--footer-social-icon-color, #777777);
  margin: 0 0.75rem;
  font-size: 1.2rem;
  transition: color 0.2s ease;
}
#footer-3 .footer-social-icons-list a:hover {
  color: var(--footer-social-icon-hover-color, #0066cc);
}
#footer-3 .footer-copyright {
  font-size: 0.8rem;
  color: var(--footer-text-color, #555555);
  opacity: 0.7;
  margin-top: 1.5rem;
}
#footer-3 .footer-copyright p {
  margin-bottom: 0;
}