#header-20 {
  position: sticky;
  top: 0;
  z-index: 1030;
  background-color: #343a40;
  color: #f8f9fa;
  padding: 0.6rem 0;
}
#header-20 .navbar-brand img {
  max-height: 38px;
  /* filter: brightness(0) invert(1); */
}
#header-20 .navbar-brand .site-name-text {
  font-size: 1.5rem;
  font-weight: 500;
  color: #fff;
}
#header-20 .navbar-nav .nav-item {
  margin: 0 0.2rem;
}
#header-20 .navbar-nav .nav-link {
  font-weight: 400;
  font-size: 0.9rem;
  color: #adb5bd;
  padding: 0.4rem 0.7rem;
  border-radius: 3px;
  transition: color 0.2s ease, background-color 0.2s ease;
}
#header-20 .navbar-nav .nav-link:hover,
#header-20 .navbar-nav .nav-link.active {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.1);
}
#header-20 .header-contact-utility {
  display: flex;
  align-items: center;
  margin-left: auto;
}
#header-20 .quick-contact-info {
  font-size: 0.85rem;
  color: #ced4da;
  margin-right: 1.5rem;
  display: flex;
  align-items: center;
}
#header-20 .quick-contact-info a {
  color: #e9ecef;
  text-decoration: none;
  transition: color 0.2s ease;
}
#header-20 .quick-contact-info a:hover {
  color: #fff;
  text-decoration: underline;
}
#header-20 .quick-contact-info .contact-divider {
  margin: 0 0.75rem;
  color: #6c757d;
}
#header-20 .quick-contact-info i {
  margin-right: 0.3rem;
  font-size: 0.9em;
}
#header-20 .utility-actions .btn-utility {
  font-size: 0.85rem;
  font-weight: 500;
  color: #fff;
  background-color: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.4rem 0.8rem;
  margin-left: 0.5rem;
  border-radius: 4px;
  transition: background-color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
#header-20 .utility-actions .btn-utility:hover {
  background-color: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.3);
}
#header-20 .utility-actions .btn-utility i {
  margin-right: 0.4rem;
}
#header-20 .navbar-toggler {
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
}
#header-20 .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
#header-20 .navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
}
@media (max-width: 1199.98px) {
  #header-20 .quick-contact-info {
    display: none;
  }
}
@media (max-width: 991.98px) {
  #header-20 .navbar-collapse {
    margin-top: 0.6rem;
    background-color: #495057;
    padding: 0.5rem 0;
    border-radius: 0 0 4px 4px;
  }
  #header-20 .navbar-nav {
    margin-bottom: 0.5rem;
  }
  #header-20 .navbar-nav .nav-item {
    width: 100%;
    margin: 0;
  }
  #header-20 .navbar-nav .nav-link {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid #5a6268;
  }
  #header-20 .navbar-nav .nav-item:last-child .nav-link {
    border-bottom: none;
  }
  #header-20 .header-contact-utility {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    margin-left: 0;
    padding: 0.5rem 1rem;
  }
  #header-20 .quick-contact-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-right: 0;
    margin-bottom: 0.75rem;
    width: 100%;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #5a6268;
  }
  #header-20 .quick-contact-info .contact-divider {
    display: none;
  }
  #header-20 .quick-contact-info a {
    margin-bottom: 0.3rem;
  }
  #header-20 .utility-actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }
  #header-20 .utility-actions .btn-utility {
    width: 100%;
    margin-left: 0;
    margin-bottom: 0.5rem;
    text-align: center;
  }
  #header-20 .utility-actions .btn-utility:last-child {
    margin-bottom: 0;
  }
}



#useful-link-19 {
  background-color: #ffffff;
}
#useful-link-19 .section-title {
  font-weight: 700;
}
#useful-link-19 .section-subtitle {
  font-size: 1.15rem;
}
#useful-link-19 .timeline-container {
  max-width: 900px;
  margin: 0 auto;
}
#useful-link-19 .timeline-container::after {
  content: "";
  position: absolute;
  width: 4px;
  background-color: #e9ecef;
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
  z-index: 1;
}
#useful-link-19 .timeline-item {
  padding: 10px 0px;
  position: relative;
  width: 50%;
  margin-bottom: 30px;
}
#useful-link-19 .timeline-item:last-child {
  margin-bottom: 0;
}

#useful-link-19 .timeline-item.left {
  left: 0;
}
#useful-link-19 .timeline-item.right {
  left: 50%;
}

#useful-link-19 .timeline-content {
  background-color: #f8f9fa;
  border: 1px solid #dee2e6;
  transition: box-shadow 0.3s ease;
  position: relative;
}
#useful-link-19 .timeline-content:hover {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
}

#useful-link-19 .timeline-item.left .timeline-content {
  padding-right: 55px;
  text-align: right;
}
#useful-link-19 .timeline-item.right .timeline-content {
  padding-left: 55px;
  text-align: left;
}

#useful-link-19 .timeline-icon {
  width: 40px;
  height: 40px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  font-size: 0.9rem;
  border: 3px solid #ffffff;
}

#useful-link-19 .timeline-item.left .timeline-icon {
  right: -20px;
}
#useful-link-19 .timeline-item.right .timeline-icon {
  left: -20px;
}

#useful-link-19 .timeline-arrow {
  content: " ";
  height: 0;
  position: absolute;
  top: 22px;
  width: 0;
  z-index: 1;
  border: medium solid #dee2e6;
}

#useful-link-19 .timeline-item.left .timeline-arrow {
  right: -10px;
  border-width: 10px 0 10px 10px;
  border-color: transparent transparent transparent #dee2e6;
}
#useful-link-19 .timeline-item.right .timeline-arrow {
  left: -10px;
  border-width: 10px 10px 10px 0;
  border-color: transparent #dee2e6 transparent transparent;
}
#useful-link-19 .timeline-item .timeline-content:hover .timeline-arrow {
  border-color: transparent #adb5bd transparent transparent;
}
#useful-link-19 .timeline-item.left .timeline-content:hover .timeline-arrow {
  border-color: transparent transparent transparent #adb5bd;
}

#useful-link-19 .timeline-meta {
  font-size: 0.8rem;
}
#useful-link-19 .timeline-title {
  margin-bottom: 0.3rem !important;
}
#useful-link-19 .timeline-description {
  margin-bottom: 0.5rem !important;
  line-height: 1.5;
}
#useful-link-19 .timeline-link {
  font-size: 0.85rem;
}

@media (max-width: 767.98px) {
  #useful-link-19 .timeline-container::after {
    left: 20px;
    margin-left: 0;
  }
  #useful-link-19 .timeline-item {
    width: 100%;
    padding-left: 50px;
    padding-right: 10px;
    left: 0 !important;
  }

  /* #useful-link-19 .timeline-item.right {
    left: 0 !important; 
  } */

  /* Icon và mũi tên cho mobile */
  #useful-link-19 .timeline-item .timeline-icon {
    left: 0px;
    top: 15px;
    transform: none;
  }
  #useful-link-19 .timeline-item .timeline-arrow {
    left: -10px;
    border-width: 10px 10px 10px 0;
    border-color: transparent #dee2e6 transparent transparent;
  }
  #useful-link-19 .timeline-item .timeline-content:hover .timeline-arrow {
    border-color: transparent #adb5bd transparent transparent;
  }

  #useful-link-19 .timeline-item .timeline-content {
    padding-left: 45px;
    padding-right: 15px;
    text-align: left;
  }
}



/* Footer-9 Styles */
#footer-9 {
  background-color: var(--footer-bg-color, #f9f9f9);
  color: var(--footer-text-color, #5a5a5a);
  padding: 1.25rem 0;
  font-size: 0.85rem;
  border-top: 1px solid var(--footer-border-top-color, #e1e1e1);
}
#footer-9 .footer-content-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem; /* Gap between items when they wrap */
}
#footer-9 .footer-block {
  margin-bottom: 0; /* No bottom margin for direct children of flex */
}
#footer-9 .copyright-block a {
  color: var(--footer-link-color, #3498db);
  text-decoration: none;
  font-weight: 500;
}
#footer-9 .copyright-block a:hover {
  color: var(--footer-link-hover-color, #2374a9);
  text-decoration: underline;
}
#footer-9 .quick-links-block ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem; /* row-gap column-gap */
}
#footer-9 .quick-links-block ul li a {
  color: var(--footer-link-color, #3498db);
  text-decoration: none;
}
#footer-9 .quick-links-block ul li a:hover {
  color: var(--footer-link-hover-color, #2374a9);
  text-decoration: underline;
}
#footer-9 .contact-short-block .contact-prefix {
  margin-right: 0.3rem;
  opacity: 0.8;
}
#footer-9 .contact-short-block a {
  color: var(--footer-link-color, #3498db);
  text-decoration: none;
}
#footer-9 .contact-short-block a:hover {
  color: var(--footer-link-hover-color, #2374a9);
  text-decoration: underline;
}
#footer-9 .social-minimal-block a {
  color: var(--footer-icon-color, #777777);
  margin-left: 0.75rem; /* Space between icons */
  font-size: 1.1rem; /* Slightly larger icons */
  transition: color 0.2s ease;
}
#footer-9 .social-minimal-block a:first-child {
  margin-left: 0;
}
#footer-9 .social-minimal-block a:hover {
  color: var(--footer-icon-hover-color, #3498db);
}
/* Responsive adjustments */
@media (max-width: 991.98px) {
  /* Stack items below lg */
  #footer-9 .footer-content-wrapper {
    flex-direction: column;
    text-align: center;
  }
  #footer-9 .footer-block {
    margin-bottom: 0.75rem; /* Add margin when stacked */
  }
  #footer-9 .footer-block:last-child {
    margin-bottom: 0;
  }
  #footer-9 .quick-links-block ul {
    justify-content: center;
  }
  #footer-9 .social-minimal-block a {
    margin: 0 0.5rem; /* Adjust spacing for centered icons */
  }
}