body {
  margin: 0;
  background: #0B0F1A;
  color: #F8FAFC;
  font-family: 'Inter', sans-serif;
}

/* NAVBAR CENTRALIZADA EM COLUNA */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;

  display: flex;
  justify-content: center;

  background: rgba(11, 15, 26, 0.6);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* CONTAINER */
.navbar-container {
  width: 100%;
  max-width: 1100px;

  display: flex;
  flex-direction: column;
  align-items: center;

  padding: 16px 20px;
}

/* LOGO CENTRAL */
.logo {
  margin-bottom: 10px;
}

.logo img {
  height: 300px;
}

/* LINHA MENU + BOTÃO */
.navbar-row {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* MENU */
.navbar nav {
  display: flex;
  gap: 16px;
}

/* LINKS COMO BOTÕES */
.navbar nav a {
  padding: 8px 16px;
  border-radius: 999px;

  color: #9CA3AF;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;

  transition: all 0.3s ease;
}

/* HOVER */
.navbar nav a:hover {
  color: #F8FAFC;
  background: rgba(255,255,255,0.08);
}

/* ATIVO */
.navbar nav a.active {
  color: #F8FAFC;
  background: rgba(255,255,255,0.12);
}

/* BOTÃO */
.btn-primary {
  background: linear-gradient(135deg, #1D4ED8, #06B6D4);
  padding: 8px 18px;
  border-radius: 10px;
  color: white;
  text-decoration: none;
  font-size: 14px;
}

/* HERO */
.hero {
  text-align: center;
  padding: 20px 20px;
}

.hero h1 {
  font-size: 42px;
}

.hero p {
  color: #9CA3AF;
  max-width: 600px;
  margin: auto;
}

/* CARDS */
.features {
  display: flex;
  justify-content: center;
  gap: 30px;
  padding: 80px 20px;
  flex-wrap: wrap;
}

.card {
  background: #111827;
  padding: 30px;
  border-radius: 16px;
  width: 250px;
}

/* FORM */
form {
  display: flex;
  flex-direction: column;
  width: 400px;
  margin: auto;
}

input, textarea {
  margin: 10px 0;
  padding: 12px;
  border-radius: 10px;
  border: none;
  background: #1F2937;
  color: white;
}

/* CHAT */
.chat-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 999;
}

.chat-button {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #1D4ED8, #06B6D4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  cursor: pointer;
}

.chat-box {
  display: none;
  width: 300px;
  background: #111827;
  border-radius: 16px;
  margin-bottom: 10px;
}

.chat-header {
  padding: 12px;
  background: linear-gradient(135deg, #1D4ED8, #06B6D4);
  display: flex;
  justify-content: space-between;
}

.chat-body {
  padding: 15px;
}

.chat-footer a {
  display: block;
  text-align: center;
  background: #25D366;
  padding: 10px;
  border-radius: 10px;
  color: white;
  text-decoration: none;
}

/* MOBILE */
@media (max-width: 768px) {

  .navbar-container {
    padding: 10px;
  }

  .navbar-row {
    width: 100%;
    justify-content: space-between;
    position: relative;
  }

  /* ÍCONE HAMBURGER */
  .menu-toggle {
    display: block;
    font-size: 24px;
    cursor: pointer;
    color: white;
  }

  /* ESCONDER MENU */
  .menu {
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;

    background: #0B0F1A;

    flex-direction: column;
    align-items: center;
    gap: 15px;

    padding: 20px;

    display: none;
  }

  /* MOSTRAR MENU */
  .menu.active {
    display: flex;
  }

  /* ESCONDER MENU DESKTOP */
  .navbar nav {
    display: none;
  }

  /* HERO */
  .hero h1 {
    font-size: 28px;
  }

  .features {
    flex-direction: column;
    align-items: center;
  }

  .card {
    width: 90%;
  }

  form {
    width: 90%;
  }
}