:root{
  --azul-profundo:#092f4f;
  --azul-petroleo:#0f4c75;
  --azul-medio:#3282b8;
  --azul-claro:#bbe1fa;
  --azul-gelo:#eef7fc;
  --branco:#ffffff;
  --grafite:#17242c;
}

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

html{
  scroll-behavior:smooth;
}

body{
  font-family:'Manrope', sans-serif;
  background:var(--branco);
  color:var(--grafite);
}

.container{
  width:90%;
  max-width:1280px;
  margin:0 auto;
}

.navbar{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:999;
  padding:20px 0;
  transition:.35s ease;
}

.navbar.scrolled{
  background:rgba(9, 47, 79, .92);
  backdrop-filter:blur(18px);
  box-shadow:0 12px 35px rgba(0,0,0,.16);
  padding:14px 0;
}

.navbar-container{
  display:flex;
  align-items:center;
  justify-content:space-between;
}

.logo img{
  width:165px;
  display:block;
}

.nav-menu{
  display:flex;
  align-items:center;
  gap:32px;
}

.nav-menu a{
  position:relative;
  color:var(--branco);
  text-decoration:none;
  font-size:.95rem;
  font-weight:500;
  letter-spacing:.03em;
  transition:.3s ease;
}

.nav-menu a:not(.btn-whatsapp)::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-8px;
  width:0;
  height:1px;
  background:var(--azul-claro);
  transition:.3s ease;
}

.nav-menu a:hover{
  color:var(--azul-claro);
}

.nav-menu a:hover::after{
  width:100%;
}

.btn-whatsapp{
  background:linear-gradient(135deg, var(--azul-medio), var(--azul-petroleo));
  padding:14px 24px;
  border-radius:999px;
  color:var(--branco) !important;
  box-shadow:0 12px 28px rgba(50,130,184,.35);
}

.btn-whatsapp:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 36px rgba(50,130,184,.45);
}

.menu-toggle{
  display:none;
  color:var(--branco);
  background:transparent;
  border:0;
  font-size:1.9rem;
  cursor:pointer;
}

@media(max-width:768px){
  .logo img{
    width:145px;
  }

  .menu-toggle{
    display:block;
    z-index:1001;
  }

  .nav-menu{
    position:fixed;
    top:0;
    right:-100%;
    width:100%;
    height:100vh;
    background:
      radial-gradient(circle at 20% 20%, rgba(187,225,250,.18), transparent 28%),
      linear-gradient(135deg, var(--azul-profundo), var(--azul-petroleo));
    flex-direction:column;
    justify-content:center;
    gap:28px;
    transition:.45s ease;
  }

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

  .nav-menu a{
    font-size:1.15rem;
  }
}