#header-10 {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%; /* chiếm toàn chiều ngang */
  height: 64px; /* hoặc auto tuỳ logo */
  background-color: #1a1a1a;
  color: #fff;
  z-index: 1050;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
}
/* logo */
#header-10 .navbar-brand img {
  max-height: 48px;
  max-width: 140px;
  margin-bottom: 0; /* bỏ khoảng trống cũ */
}
/* thanh điều hướng ngang */
#header-10 nav {
  width: auto;
}
#header-10 .navbar-nav {
  flex-direction: row; /* xếp ngang */
  align-items: center;
  gap: 0.25rem;
  margin: 0;
}
#header-10 .nav-item {
  width: auto;
}
#header-10 .nav-link {
  color: #ccc;
  font-weight: 500;
  padding: 0.75rem 1rem;
  transition: all 0.3s;
}
#header-10 .nav-link.active,
#header-10 .nav-link:hover {
  color: #fff;
  background-color: #007bff;
  border-radius: 6px;
}
/* nút CTA nằm bên phải */
#header-10 .cta-button {
  margin-left: 1rem;
  background-color: #00b4d8;
  color: #fff;
  padding: 0.6rem 1.25rem;
  border-radius: 25px;
  font-weight: 600;
  transition: 0.3s ease;
}
#header-10 .cta-button:hover {
  background-color: #0096c7;
}
/* ===== Mobile (<= 991.98 px) ===== */
@media (max-width: 991.98px) {
  #header-10 {
    height: auto; /* cho phép header cao dần */
    flex-wrap: wrap;
    padding: 0.75rem 1rem;
  }
  /* Ẩn menu, bật khi nhấn nút burger (tuỳ bạn thêm JS-toggle) */
  #header-10 nav {
    order: 3;
    width: 100%;
    display: none;
  }
  #header-10.active nav {
    display: block;
  }
  #header-10 .navbar-nav {
    flex-direction: column;
    align-items: flex-start;
  }
  #header-10 .cta-button {
    margin: 0.5rem 0 0;
  }
}



/* Footer-6 Styles */
#footer-6 .footer-section-1 {
  background-color: var(--footer-s1-bg-color, #2c3e50);
  color: var(--footer-s1-text-color, #ecf0f1);
  padding: 2.5rem 0;
}
#footer-6 .footer-section-1 .footer-logo-s1 {
  max-height: 50px;
  margin-bottom: 1rem;
  /* filter: brightness(0) invert(1); */ /* Assuming dark bg, light logo */
}
#footer-6 .footer-section-1 .company-bio-s1 {
  font-size: 0.9rem;
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: 1.5rem;
}
#footer-6 .footer-section-1 .newsletter-title-s1 {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
}
#footer-6 .footer-section-1 .newsletter-form-s1 .form-control {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--footer-s1-text-color, #ecf0f1);
  font-size: 0.9rem;
}
#footer-6 .footer-section-1 .newsletter-form-s1 .form-control::placeholder {
  color: rgba(255, 255, 255, 0.5);
}
#footer-6 .footer-section-1 .newsletter-form-s1 .btn-newsletter {
  background-color: var(--footer-newsletter-btn-bg, #3498db);
  color: var(--footer-newsletter-btn-text, #ffffff);
  border-color: var(--footer-newsletter-btn-bg, #3498db);
  font-size: 0.9rem;
}
#footer-6 .footer-section-1 .newsletter-response-s1 {
  font-size: 0.85rem;
  margin-top: 0.5rem;
}
#footer-6 .footer-section-1 .newsletter-response-s1 .text-success a {
  color: var(--footer-s1-link-color, #3498db);
}
#footer-6 .footer-section-2 {
  background-color: var(--footer-s2-bg-color, #343a40);
  color: var(--footer-s2-text-color, #f8f9fa);
  padding: 3rem 0;
  font-size: 0.9rem;
}
#footer-6 .footer-section-2 .s2-column-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--footer-s2-title-color, #ffffff);
  margin-bottom: 1rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--footer-s2-link-color, #17a2b8);
  display: inline-block;
}
#footer-6 .footer-section-2 .s2-links-list {
  list-style: none;
  padding-left: 0;
}
#footer-6 .footer-section-2 .s2-links-list li {
  margin-bottom: 0.5rem;
}
#footer-6 .footer-section-2 .s2-links-list a {
  color: var(--footer-s2-link-color, #17a2b8);
  text-decoration: none;
  transition: color 0.2s ease;
}
#footer-6 .footer-section-2 .s2-links-list a:hover,
#footer-6 .footer-section-2 .s2-links-list a.active {
  color: var(--footer-s2-link-hover-color, #138496);
  text-decoration: underline;
}
#footer-6 .footer-section-2 .s2-contact-details p,
#footer-6 .footer-section-2 .s2-contact-details a {
  margin-bottom: 0.4rem;
  font-size: 0.85rem;
  color: var(--footer-s2-text-color);
  opacity: 0.9;
  text-decoration: none;
}
#footer-6 .footer-section-2 .s2-contact-details i {
  width: 16px;
  margin-right: 0.5rem;
  color: var(--footer-s2-link-color, #17a2b8);
}
#footer-6 .footer-section-2 .s2-contact-details a:hover {
  color: var(--footer-s2-link-hover-color, #138496);
  opacity: 1;
}
#footer-6 .footer-section-3 {
  background-color: var(--footer-s3-bg-color, #212529);
  color: var(--footer-s3-text-color, #adb5bd);
  padding: 1.5rem 0;
  font-size: 0.8rem;
}
#footer-6 .footer-section-3 .copyright-text-s3 {
  margin-bottom: 0;
  text-align: center;
}
#footer-6 .footer-section-3 .social-icons-s3 {
  text-align: center;
}
#footer-6 .footer-section-3 .social-icons-s3 a {
  color: var(--footer-s3-social-icon-color, #adb5bd);
  margin: 0 0.6rem;
  font-size: 1.1rem;
  transition: color 0.2s ease;
}
#footer-6 .footer-section-3 .social-icons-s3 a:hover {
  color: var(--footer-s3-social-icon-hover-color, #ffffff);
}
@media (min-width: 768px) {
  #footer-6 .footer-section-1 .row > div {
    /* Align items vertically in section 1 */
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  #footer-6 .footer-section-3 .copyright-text-s3 {
    text-align: left;
  }
  #footer-6 .footer-section-3 .social-icons-s3 {
    text-align: right;
  }
}
@media (max-width: 991.98px) {
  /* lg breakpoint */
  #footer-6 .footer-section-1 .text-lg-start {
    text-align: center !important;
  }
  #footer-6 .footer-section-1 .align-items-lg-center {
    align-items: stretch !important; /* Let content determine height */
  }
}
@media (max-width: 767.98px) {
  #footer-6 .footer-column-s2 {
    /* For columns in section 2 */
    margin-bottom: 2rem;
  }
  #footer-6 .footer-section-3 .col-md-6 {
    /* Stack copyright and social */
    text-align: center !important;
    margin-bottom: 0.75rem;
  }
  #footer-6 .footer-section-3 .col-md-6:last-child {
    margin-bottom: 0;
  }
}