* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  color: #333;
  line-height: 1.6;
}
header.banner-header {
  background-image: url('banner.jpg');
  background-size: cover;
  background-position: center;
  width: 100%;
  aspect-ratio: 16/6;
  position: relative;
}
nav {
  background: #333;
  color: white;
  display: flex;
  justify-content: center;
  gap: 2rem;
  padding: 0.8rem 0;
}
nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover {
  text-decoration: underline;
  color: #f7931e;
}
.hero {
  background: #fff;
  padding: 2rem 1rem;
  text-align: center;
}
.hero h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}
.container {
  padding: 1rem;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.card {
  background: white;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  overflow: hidden;
}
.card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.card .info {
  padding: 1rem;
}
footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
}
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 999;
  animation: pulse 1.5s infinite;
}
.whatsapp-float img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(0,0,0,0.3);
}
@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}
@media (max-width: 600px) {
  .hero h2 {
    font-size: 1.2rem;
  }
  .whatsapp-float img {
    width: 45px;
    height: 45px;
  }
}