* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Open Sans", sans-serif;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: rgba(0, 48, 90, 0.8);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: bold;
  color: white;
}

.logo-img {
  height: 40px;
  margin-right: 10px;
}

.nav-menu {
  display: flex;
  list-style-type: none;
}

.nav-item {
  margin: 0 1rem;
  position: relative;
}

.nav-item a {
  color: white;
  text-decoration: none;
  font-size: 1rem;
  transition: color 0.3s ease;
}

.nav-item a:hover {
  color: #4ecdc4;
}

.dropdown-toggle {
  cursor: pointer;
}

.dropdown-menu {
  display: none;
  position: absolute;
  background-color: rgba(0, 48, 90, 0.9);
  min-width: 150px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  z-index: 1;
}

.dropdown-menu li {
  padding: 0.5rem 1rem;
}

.dropdown-menu a {
  color: white;
  text-decoration: none;
  display: block;
}

.dropdown-menu a:hover {
  background-color: rgba(78, 205, 196, 0.2);
}

.signin-button {
  background-color: #4ecdc4;
  color: #00305a;
  border: none;
  padding: 0.7rem 1.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1rem;
  font-weight: bold;
}

.signin-button:hover {
  background-color: #45b7aa;
  box-shadow: 0 0 15px rgba(78, 205, 196, 0.7);
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.toggle-icon {
  display: block;
  width: 25px;
  height: 2px;
  background-color: white;
  position: relative;
  transition: background-color 0.3s ease;
}

.toggle-icon::before,
.toggle-icon::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: white;
  transition: all 0.3s ease;
}

.toggle-icon::before {
  top: -8px;
}

.toggle-icon::after {
  bottom: -8px;
}

@media (max-width: 768px) {
  .navbar-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: rgba(0, 48, 90, 0.9);
    padding: 1rem 0;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-item {
    margin: 0.5rem 0;
  }

  .dropdown-menu {
    position: static;
    background-color: transparent;
    box-shadow: none;
    display: none;
  }

  .dropdown-menu.active {
    display: block;
  }
}