.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  transition: background-color 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.navbar.solid {
  background: linear-gradient(128deg, rgba(7, 33, 55, 0.9) 0%, rgba(10, 59, 86, 0.88) 100%);
  box-shadow: 0 10px 28px rgba(7, 19, 33, 0.26);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(226, 243, 247, 0.16);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  background: transparent;
  padding: 0;
  text-decoration: none;
  border-radius: 0;
  box-shadow: none;
}

.logo img {
  display: block;
  height: 54px;
  width: auto;
  background: transparent;
}

.navbar.solid .logo {
  box-shadow: none;
}

.menu-toggle {
  border: 0;
  background: transparent;
  color: #fff;
  font-size: 1.35rem;
  display: none;
  cursor: pointer;
}

.navbar.solid .menu-toggle {
  color: #f3f8fd;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 26px;
}

.nav-links > li {
  position: relative;
}

.nav-links a {
  text-decoration: none;
  color: #fff;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.25s ease;
}

.navbar.solid .nav-links a {
  color: #f3f8fd;
}

.nav-links a:hover {
  color: var(--accent);
}

.has-sub {
  display: flex;
  align-items: center;
  gap: 6px;
}

.submenu-toggle {
  border: none;
  background: transparent;
  color: #fff;
  cursor: pointer;
  font-size: 0.75rem;
  padding: 0;
  line-height: 1;
}

.navbar.solid .submenu-toggle {
  color: #f3f8fd;
}

.navbar.solid .submenu {
  background: linear-gradient(160deg, rgba(21, 45, 76, 0.98), rgba(13, 31, 54, 0.98));
  border: 1px solid rgba(185, 214, 230, 0.18);
}

.submenu {
  position: absolute;
  top: calc(100% + 16px);
  left: 0;
  min-width: 260px;
  list-style: none;
  background: linear-gradient(160deg, #253457, #161f35);
  border-radius: 0;
  box-shadow: 0 18px 34px rgba(8, 14, 18, 0.25);
  padding: 16px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 1200;
}

.submenu a {
  display: block;
  padding: 10px 22px;
  color: #ffffff;
  font-size: 0.87rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.35;
  text-transform: uppercase;
}

.navbar.solid .submenu a {
  color: #ffffff;
}

.submenu a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.16);
}

.has-sub:hover .submenu,
.has-sub.open .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}