/* === SUB NAVBAR CONTAINER === */
.sub-navbar {
  position: sticky;
  top: 64px;
  background: linear-gradient(90deg, #1e1e2f, #293149);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

/* === MAIN NAV LINKS === */
.sub-nav-links {
  display: flex;
  gap: 40px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.sub-nav-links li {
  position: relative;
}

/* === BUTTON STYLE === */
.sub-nav-links a {
  color: #e0f7fa;
  font-weight: 600;
  font-size: 1rem;
  padding: 10px 18px;
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-block;
}
.sub-nav-links a:hover {
  background: rgba(0, 119, 255, 0.15);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 0 12px rgba(0,183,255,0.25);
}

/* === DROPDOWN MENU === */
.dropdown {
  display: none;
  position: absolute;
  top: 36px; /* Reduced margin for tight appearance */
  left: 0;
  background: #00070a;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  flex-direction: column;
  min-width: 200px;
  z-index: 1000;
  padding: 0.4rem 0;
}
.sub-nav-links li:hover .dropdown {
  display: flex;
}

/* === DROPDOWN LINKS === */
.dropdown a {
  color: #023e8a;
  font-weight: 500;
  padding: 10px 18px;
  text-decoration: none;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.dropdown a:hover {
  background-color: #e0f7fa;
  color: #0077b6;
}