* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #f6f6f6;
}

.site-header {
  background: #111827;
  color: white;
  min-height: 65vh;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 8%;
}

.logo {
  font-size: 1.4rem;
  font-weight: bold;
}

.nav-links a {
  color: white;
  text-decoration: none;
  margin-left: 24px;
}

.hero {
  padding: 100px 8%;
  max-width: 900px;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 16px;
}

.hero p {
  font-size: 1.2rem;
  max-width: 650px;
}

.button {
  display: inline-block;
  margin-top: 18px;
  padding: 12px 20px;
  background: white;
  color: #111827;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
}

.section {
  max-width: 1000px;
  margin: 0 auto;
  padding: 70px 8%;
  background: white;
}

.cards {
  display: grid;
  gap: 20px;
}

.card {
  padding: 24px;
  border: 1px solid #ddd;
  border-radius: 10px;
  background: #fafafa;
}

.contact a {
  color: #111827;
}

footer {
  text-align: center;
  padding: 24px;
  background: #111827;
  color: white;
}

@media (max-width: 700px) {
  .navbar {
    flex-direction: column;
    gap: 16px;
  }

  .nav-links a {
    margin: 0 8px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }
}