/* General */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Roboto', sans-serif; color: #333; line-height: 1.6; }
a { text-decoration: none; color: inherit; }

/* Header */
header { background: #003366; color: #fff; padding: 15px 0; }
header .container { display: flex; justify-content: space-between; align-items: center; max-width: 1100px; margin: 0 auto; padding: 0 20px; }
header .logo { font-size: 22px; font-weight: 700; }
nav a { margin-left: 15px; font-weight: 500; color: #fff; }
nav .cta { background: #ffcc00; color: #003366; padding: 8px 15px; border-radius: 5px; font-weight: 700; }

/* Hero */
.hero { background: url('https://source.unsplash.com/1600x900/?amsterdam') center/cover no-repeat; color: #fff; text-align: center; padding: 120px 20px; }
.hero h2 { font-size: 36px; margin-bottom: 15px; }
.hero p { font-size: 18px; margin-bottom: 20px; }
.btn { display: inline-block; background: #ffcc00; color: #003366; padding: 12px 25px; border-radius: 5px; font-weight: 700; }
.whatsapp { background: #25D366; color: #fff; margin-top: 20px; }

/* Sections */
.section { max-width: 1100px; margin: 0 auto; padding: 60px 20px; }
.section h2 { text-align: center; margin-bottom: 30px; color: #003366; }

/* Services */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.card { background: #f8f8f8; padding: 20px; border-radius: 8px; box-shadow: 0 2px 6px rgba(0,0,0,0.1); }
.card h3 { margin-bottom: 10px; color: #003366; }

/* FAQ */
details { margin-bottom: 15px; }
summary { font-weight: 700; cursor: pointer; }
details p { padding: 8px 0 0 15px; }

/* Contact */
.contact-info p { margin-bottom: 10px; }

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

/* Responsive */
@media(max-width:768px){
  .hero h2 { font-size: 28px; }
  .hero p { font-size: 16px; }
  header .container { flex-direction: column; }
  nav { margin-top: 10px; }
}