/* Navbar shared stylesheet: desktop + mobile */

/* Header base */
header {
  width: 100%;
  padding: 40px 4%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  transition: .5s;
}
header.rolagem {
  background-color: #fff;
  padding: 20px 2%;
}
header.rolagem a,
header.rolagem i { color: #000754; }
header i { font-size: 30px; color: #fff; }

/* Lists inside header */
header ul {
  list-style-type: none;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 2vw, 48px);
  justify-content: center;
  align-items: center;
  padding: 0;
  margin: 0;
}
header ul li { display: inline-block; margin: 0 40px; }
header ul li a { color: #fff; text-decoration: none; }

/* Containers and logos */
.container_responsive { max-width: 1280px; margin: auto; overflow: hidden; }
.logo_desktop { display: block; }
.logo-desktop-alt { display: none; }
#header.rolagem .logo_desktop { display: none; }
#header.rolagem .logo-desktop-alt { display: block; }
@media (max-width: 768px) {
  .logo_desktop, .logo-desktop-alt { display: none !important; }
}

/* Desktop nav */
.nav-desktop { display: block; font-family: 'Poppins', sans-serif; font-weight: 600; }

/* Mobile nav base */
.nav-links { display: none; }
.nav-links li:hover { background-color: #0045c7; transform: scale(1.03); }
.nav-links.active { display: block; }

/* Mobile logo */
.logo_responsive { display: block; margin: auto; width: 450px; }
@media (min-width: 769px) {
  .logo_responsive {
    display: none !important;
  }
}
/* Hamburger */
.hamburger-menu {
  position: absolute; top: 50%; left: 10%; transform: translate(-50%, -50%);
  width: 25px; height: 25px; z-index: 2; cursor: pointer;
}
.hamburger-menu div { background-color: #fff; height: 4px; margin: 5px 0; border-radius: 2px; transition: .4s; width: 100%; }
.hamburger-menu.active div:nth-child(1) { transform: rotate(-45deg) translate(-6px, 6px); }
.hamburger-menu.active div:nth-child(2) { opacity: 0; }
.hamburger-menu.active div:nth-child(3) { transform: rotate(45deg) translate(-6px, -6px); }

/* Mobile dropdown container */
.nav-links {
  display: none; flex-direction: column; align-items: center; padding: 10px 0;
  background-color: #001c5c; position: absolute; top: 180px; left: 5%; right: 5%;
  border-radius: 1px 30px; width: auto; overflow-y: auto;
}
.nav-links.active { display: flex; opacity: 1; transform: translateY(0); pointer-events: auto; }
.nav-links li {
  width: 100%; max-width: 300px; margin: 15px auto; padding: 12px 20px; text-align: center;
  background-color: #002e89; border-radius: 12px; box-shadow: 0 4px 10px rgba(0,0,0,.2);
  transition: background-color .3s ease, transform .3s ease; opacity: 0; animation: fadeInUp .5s ease forwards;
}
.nav-links a { color: #fff; font-size: 18px; font-weight: bold; text-decoration: none; display: block; }

@keyframes fadeInUp {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* Nav responsiveness (smaller screens) */
@media (max-width: 1200px) { header ul { gap: 2px; } }
@media (max-width: 1024px) { header ul { gap: 2px; } }
@media (max-width: 900px) { header ul { flex-direction: column; gap: 12.8px; } }

/* Show only hamburger on mobile; hide desktop nav */
@media (max-width: 900px) {
  .nav-desktop { display: none !important; }
  .hamburger-menu { display: block !important; }
}

/* Hide hamburger on desktop; ensure mobile menu stays hidden */
@media (min-width: 901px) {
  .hamburger-menu { display: none !important; }
  .nav-links { display: none !important; }
}

/* Desktop refinements */
@media (min-width: 1280px) {
  .container_responsive { max-width: 1280px; padding: 0 50px; gap: 30px; }
  .nav-desktop { font-size: 16px; gap: 20px; }
  header ul li { margin: 0 5px; }
  .nav-links li { max-width: 300px; padding: 10px 10px; margin: 5px; }
}
@media (min-width: 1440px) {
  .container_responsive { max-width: 1320px; padding: 0 60px; }
  .nav-desktop { gap: clamp(24px, 4vw, 64px); font-size: 16px; }
  header ul li { margin: 0 clamp(10px, 2.5vw, 28px); }
  .nav-links li { max-width: 450px; padding: 22px 35px; margin: 25px auto; }
}