.site-topbar {
  background: #fff;
  border-bottom: 1px solid #ececec;
  position: relative;
  z-index: 1000;
}

.site-topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.site-brand img {
  height: 56px;
  width: auto;
  display: block;
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
}

.site-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 36px;
}

.site-menu li {
  margin: 0;
  padding: 0;
}

.site-menu a {
  text-decoration: none;
  color: #111;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.2;
}

.site-menu a:hover {
  color: #0d6efd;
}

.site-social {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.social-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
}

.social-facebook {
  background: #4267b2;
}

.social-youtube {
  background: #ff0000;
}

.social-tiktok {
  background: #222;
}

.site-menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  padding: 0;
  margin-left: auto;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.site-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #111;
  margin: 0 auto;
  border-radius: 2px;
}

.mobile-social {
  display: none;
}

@media (max-width: 991.98px) {
  .site-topbar-inner {
    flex-wrap: wrap;
  }

  .site-brand img {
    height: 48px;
  }

  .site-menu-toggle {
    display: flex;
  }

  .desktop-social {
    display: none;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex: 0 0 100%;
    justify-content: flex-start;
    padding-top: 10px;
  }

  .site-nav.is-open {
    display: block;
  }

  .site-menu {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    width: 100%;
  }

  .site-menu li {
    width: 100%;
    border-top: 1px solid #f1f1f1;
  }

  .site-menu a {
    display: block;
    width: 100%;
    padding: 14px 0;
    font-size: 16px;
  }

  .mobile-social {
    display: flex;
    padding-top: 14px;
  }
}

.site-topbar {
  position: sticky;
  top: 0;
  z-index: 9999;
  transition: all 0.3s ease;
}

.site-topbar.scrolled {
  padding: 6px 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}