body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f8f9fa; }
.hero { background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://via.placeholder.com/1920x600') no-repeat center center; background-size: cover; color: white; padding: 100px 0; }
.card { border: none; box-shadow: 0 4px 8px rgba(0,0,0,0.1); transition: 0.3s; }
.card:hover { box-shadow: 0 8px 16px rgba(0,0,0,0.2); }
.whatsapp-btn { background-color: #25D366; color: white; border-radius: 50px; padding: 10px 20px; text-decoration: none; font-weight: bold; }
.whatsapp-btn:hover { background-color: #128C7E; color: white; }