* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Open Sans", Arial, sans-serif;
  color: #333;
  line-height: 1.6;
  background: #f4f4f4;
}

.hero {
  background: url('images/guard-monitors.jpg') center/cover no-repeat;
  color: white;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
}

.hero .overlay {
  background-color: rgba(0,0,0,0.6);
  padding: 2rem;
  border-radius: 8px;
}

.logo {
  width: 80px;
  height: auto;
  margin-bottom: 1rem;
}

.cta-button {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background-color: #0077cc;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  font-weight: bold;
}

.cta-button:hover {
  background-color: #005fa3;
}

.services, .why, .area, .contact {
  padding: 2rem 1rem;
  text-align: center;
  background: white;
  margin: 1rem auto;
  max-width: 900px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.service-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  margin-top: 1rem;
}

.service-list div {
  width: 280px;
  margin: 1rem 0;
}

footer {
  text-align: center;
  padding: 1rem;
  background-color: #222;
  color: white;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .hero {
    height: 70vh;
  }
  .service-list {
    flex-direction: column;
    align-items: center;
  }
}