#header-18-brand {
  position: sticky;
  top: 0;
  z-index: 1030;
  background-color: #ffffff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.06);
  padding: 0.9rem 0;
}
#header-18-brand .navbar-brand img {
  max-height: 42px;
}
#header-18-brand .navbar-brand .site-name-text {
  font-size: 1.65rem;
  font-weight: 600;
  color: #212529;
}
#header-18-brand .navbar-nav .nav-item {
  margin: 0 0.5rem;
}
#header-18-brand .navbar-nav .nav-link {
  font-weight: 500;
  color: #343a40;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: color 0.2s ease, background-color 0.2s ease;
}
#header-18-brand .navbar-nav .nav-link:hover,
#header-18-brand .navbar-nav .nav-link.active {
  color: #007bff;
  background-color: rgba(0, 123, 255, 0.07);
}
#header-18-brand .header-utility-area {
  display: flex;
  align-items: center;
  margin-left: auto;
}
#header-18-brand .utility-icon-link,
#header-18-brand .social-icon-link {
  color: #495057;
  font-size: 1.15rem;
  padding: 0.6rem;
  margin-left: 0.25rem;
  border-radius: 50%;
  transition: color 0.2s ease, background-color 0.2s ease;
  line-height: 1;
}
#header-18-brand .utility-icon-link:hover,
#header-18-brand .social-icon-link:hover {
  color: #007bff;
  background-color: rgba(0, 123, 255, 0.1);
}
#header-18-brand .social-icons-group {
  display: flex;
  align-items: center;
  margin-left: 0.5rem;
  padding-right: 0.5rem;
}
#header-18-brand .header-cta-button {
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.55rem 1.1rem;
  border-radius: 20px;
  margin-left: 0.5rem;
  white-space: nowrap;
}
#header-18-brand .navbar-toggler {
  border: none;
  padding: 0.25rem 0.5rem;
}
#header-18-brand .navbar-toggler:focus {
  box-shadow: none;
}
@media (max-width: 991.98px) {
  #header-18-brand .navbar-collapse {
    margin-top: 0.9rem;
    border-top: 1px solid #e9ecef;
    padding-top: 0.9rem;
    background-color: #fff;
  }
  #header-18-brand .navbar-nav {
    align-items: flex-start;
    margin-bottom: 0.75rem;
  }
  #header-18-brand .navbar-nav .nav-item {
    width: 100%;
    margin: 0.1rem 0;
  }
  #header-18-brand .navbar-nav .nav-link {
    padding: 0.8rem 1rem;
    display: block;
  }
  #header-18-brand .header-utility-area {
    flex-direction: column;
    align-items: stretch;
    margin-left: 0;
    padding-top: 0.75rem;
    border-top: 1px solid #f0f0f0;
  }
  #header-18-brand .utility-icon-link {
    display: block;
    text-align: left;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    padding: 0.8rem 1rem;
  }
  #header-18-brand .utility-icon-link:hover {
    background-color: rgba(0, 123, 255, 0.07);
  }
  #header-18-brand .social-icons-group {
    justify-content: flex-start;
    margin-left: 0;
    padding-right: 0;
    margin-bottom: 0.75rem;
    padding-left: 0.5rem;
  }
  #header-18-brand .social-icon-link {
    padding: 0.6rem 0.5rem;
  }
  #header-18-brand .header-cta-button {
    width: 100%;
    text-align: center;
    margin-left: 0;
    padding: 0.75rem 1rem;
  }
}



#link-section-9 {
  position: relative;
  background: var(--bottom-color);
  color: var(--text-color);
  text-align: center;
  overflow: hidden;
  padding: 6rem 0;
}

/* Lớp nền trên */
#link-section-9 .upper-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: var(--top-color);
  z-index: 0;
}

/* Sóng chia giữa */
#link-section-9 .upper-bg .wave-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80px;
  overflow: hidden;
}
#link-section-9 .upper-bg .wave-bottom svg {
  display: block;
  width: calc(100% + 1px);
  height: 80px;
}
#link-section-9 .upper-bg .wave-bottom path {
  fill: var(--bottom-color);
}

/* Nội dung giữ nổi trên lớp nền */
#link-section-9 .container {
  position: relative;
  z-index: 1;
}

#link-section-9 .section-title {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

#link-section-9 .section-subtitle {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Các nút liên kết */
#link-section-9 .link-item {
  background: rgba(255,255,255,0.2);
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text-color);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s, transform 0.3s;
}
#link-section-9 .link-item:hover {
  background: rgba(255,255,255,0.35);
  transform: translateY(-4px);
}
#link-section-9 .link-item i {
  font-size: 1.25rem;
  margin-right: 0.5rem;
}





/* Footer-12 Styles */
#footer-12 {
  /* Gradient background set inline */
  color: var(--footer-text-color, #ffffff);
  padding: 4rem 0 2rem 0;
  position: relative;
  overflow: hidden; /* For any pseudo-elements that might go outside */
  font-size: 0.9rem;
}
/* Optional: decorative pseudo-element for asymmetrical design */
#footer-12::before {
  content: "";
  position: absolute;
  top: -50px;
  left: -50px;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 50%;
  opacity: 0.5;
  pointer-events: none; /* So it doesn't interfere with clicks */
}
#footer-12::after {
  content: "";
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 250px;
  height: 250px;
  background: rgba(255, 255, 255, 0.04);
  transform: rotate(45deg);
  opacity: 0.5;
  pointer-events: none;
}
#footer-12 .footer-column-f12 {
  position: relative; /* Ensure columns are above pseudo-elements */
  z-index: 2;
  margin-bottom: 2rem; /* Spacing for stacked columns */
}
#footer-12 .main-column-f12 {
  /* Column 1 - Logo, Quote */
  padding: 1.5rem;
  background-color: var(--footer-col1-bg, rgba(255, 255, 255, 0.05));
  border-radius: 8px;
  min-height: 100%; /* Make columns in the same row appear same height if desired */
  display: flex;
  flex-direction: column;
  justify-content: center;
}
#footer-12 .footer-logo-f12 {
  max-height: 60px; /* Adjust */
  margin-bottom: 1.5rem;
  /* filter: brightness(0) invert(1); */ /* Light logo for dark bg */
}
#footer-12 .quote-block-f12 .quote-text {
  font-size: 1.1rem;
  font-style: italic;
  color: var(--footer-quote-color, #e0e0e0);
  margin-bottom: 0.5rem;
  line-height: 1.5;
}
#footer-12 .quote-block-f12 .quote-author {
  font-size: 0.9rem;
  color: var(--footer-quote-color, #e0e0e0);
  opacity: 0.8;
  text-align: right;
}
#footer-12 .column-title-f12 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--footer-title-color, #ffffff);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
#footer-12 .links-list-f12 {
  list-style: none;
  padding-left: 0;
}
#footer-12 .links-list-f12 li {
  margin-bottom: 0.6rem;
}
#footer-12 .links-list-f12 a {
  color: var(--footer-link-color, #f0f0f0);
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
#footer-12 .links-list-f12 a:hover,
#footer-12 .links-list-f12 a.active {
  color: var(--footer-link-hover-color, #ffffff);
  padding-left: 6px;
  text-decoration: none; /* Or underline if preferred */
}
#footer-12 .contact-short-f12 p,
#footer-12 .contact-short-f12 a {
  margin-bottom: 0.3rem;
  color: var(--footer-link-color, #f0f0f0);
  text-decoration: none;
}
#footer-12 .contact-short-f12 i {
  margin-right: 0.5rem;
}
#footer-12 .contact-short-f12 a:hover {
  color: var(--footer-link-hover-color, #ffffff);
}
#footer-12 .social-icons-list-f12 a {
  color: var(--footer-link-color, #f0f0f0);
  margin: 0 0.5rem 0.5rem 0;
  font-size: 1.3rem;
  transition: color 0.2s ease, transform 0.2s ease;
  display: inline-block; /* For transform */
}
#footer-12 .social-icons-list-f12 a:hover {
  color: var(--footer-link-hover-color, #ffffff);
  transform: translateY(-2px);
}
#footer-12 .partner-links-f12 ul {
  margin-top: 0.5rem; /* Space if social icons are above */
}
#footer-12 .bottom-copyright-line-f12 {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid
    var(--footer-bottom-line-color, rgba(255, 255, 255, 0.3));
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.8;
}
#footer-12 .bottom-copyright-line-f12 p {
  margin-bottom: 0;
}