/* Reset básico e base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: Arial, sans-serif;
  background: #f9f9f9;
  color: #333;
  line-height: 1.6;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}

/* Header e Navegação */
header {
  background: #003366;
  padding: 20px 0;
}
nav {
  text-align: center;
}
nav a {
  color: #fff;
  margin: 0 15px;
  font-weight: bold;
}
nav a:hover {
  text-decoration: underline;
}

/* Hero */
.hero {
  background: #003366;
  color: #fff;
  padding: 60px 20px;
  text-align: center;
  opacity: 0;
  animation: fadeIn 1.8s ease-out forwards;
}
@keyframes fadeIn {
  to { opacity: 1; }
}

/* Carrossel de Banners */
.banner-container {
  position: relative;
  overflow: hidden;
}
.banner-slide {
  display: none;
  width: 100%;
  height: auto;
  animation: fade 1.5s;
}
@keyframes fade {
  from { opacity: 0.4; }
  to { opacity: 1; }
}

/* Container principal */
main {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 20px;
}

/* Cards e Planos */
.planos, .produtos {
  display: grid;
  gap: 20px;
  padding: 20px;
}
.planos {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.produtos {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Estilo de cada card */
.card {
  background: #f1f1f1;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  text-align: center;
}
.card h3 {
  color: #003366;
  margin-bottom: 10px;
}
.card p {
  margin: 5px 0;
}
.card strong {
  display: block;
  font-size: 1.4rem;
  color: #003366;
  margin: 10px 0;
}
.card button {
  margin-top: 15px;
  padding: 10px 20px;
  background: #003366;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}
.card button:hover {
  background: #0055aa;
}

/* Galeria */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin: 30px 20px;
}

/* Formulário de Contato */
form {
  max-width: 600px;
  margin: 20px auto;
  padding: 20px;
}
form label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
}
form input, form textarea {
  width: 100%;
  padding: 10px;
  margin-bottom: 20px;
  border: 1px solid #ccc;
  border-radius: 4px;
}
form button {
  background: #003366;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
form button:hover {
  background: #0055aa;
}

/* Footer */
footer {
  background: #003366;
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}

/* WhatsApp flutuante */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: #25d366;
  color: white;
  font-size: 28px;
  padding: 12px 16px;
  border-radius: 50%;
  text-decoration: none;
  box-shadow: 0 4px 8px rgba(0,0,0,0.3);
  z-index: 1000;
}
.whatsapp-float:hover {
  background-color: #1ebc59;
}