/* Menu de Navegação */
.navbar {
  background: linear-gradient(135deg, var(--verde-principal), var(--verde-medio));
  box-shadow: 0 4px 12px var(--sombra-media);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transicao);
}

.navbar.scrolled {
  box-shadow: 0 6px 20px var(--sombra-forte);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
}

.nav-logo img {
  height: 60px;
  width: auto;
  transition: var(--transicao);
}

.nav-logo:hover img {
  transform: scale(1.05);
}

.logo-text {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
}

.nav-link {
  color: white;
  text-decoration: none;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transicao);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  background: rgba(255, 255, 255, 0.2);
}

.arrow {
  font-size: 0.7rem;
  transition: var(--transicao);
}

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: white;
  min-width: 250px;
  border-radius: 12px;
  box-shadow: 0 8px 24px var(--sombra-forte);
  list-style: none;
  padding: 0.75rem 0;
  margin-top: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transicao);
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown:hover .arrow {
  transform: rotate(180deg);
}

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  display: block;
  padding: 0.875rem 1.5rem;
  color: var(--texto-principal);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transicao);
}

.dropdown-menu a:hover,
.dropdown-menu a.active {
  background: var(--fundo);
  color: var(--verde-principal);
  padding-left: 2rem;
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 8px;
  transition: var(--transicao);
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.2);
}

.hamburger span {
  width: 28px;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: var(--transicao);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
}

/* Mobile Menu */
@media (max-width: 1024px) {
  .nav-container {
    padding: 0 1.5rem;
    height: 70px;
  }

  .nav-logo img {
    height: 50px;
  }

  .logo-text {
    font-size: 1.3rem;
  }

  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 300px;
    height: calc(100vh - 70px);
    background: white;
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem;
    gap: 0;
    box-shadow: -4px 0 12px var(--sombra-media);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-menu li {
    width: 100%;
    margin-bottom: 0.5rem;
  }

  .nav-link {
    width: 100%;
    color: var(--texto-principal);
    padding: 1rem;
    border-radius: 8px;
  }

  .nav-link:hover,
  .nav-link.active {
    background: var(--fundo);
    color: var(--verde-principal);
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: var(--fundo);
    margin-top: 0.5rem;
    margin-left: 1rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .dropdown.active .dropdown-menu {
    max-height: 500px;
  }

  .dropdown.active .arrow {
    transform: rotate(180deg);
  }

  .dropdown-menu a {
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
  }

  .dropdown-menu a:hover,
  .dropdown-menu a.active {
    background: white;
    padding-left: 1.5rem;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 1rem;
    height: 65px;
  }

  .nav-logo img {
    height: 45px;
  }

  .logo-text {
    font-size: 1.1rem;
  }

  .nav-menu {
    width: 280px;
    top: 65px;
    height: calc(100vh - 65px);
    padding: 1.5rem;
  }

  .hamburger span {
    width: 24px;
  }
}