body {
  font-family: 'Helvetica Neue', sans-serif;
  background: #fff;
  color: #333;
  margin: 0;
  padding: 0;
}
header {
  background: #fafafa;
  padding: 30px 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
header h1 {
  font-weight: 700;
  font-size: 28px;
}
nav a {
  margin-left: 25px;
  text-decoration: none;
  color: #333;
  font-weight: 500;
}
.hero {
  background: #eee;
  text-align: center;
  padding: 140px 20px;
}
.hero h2 {
  font-size: 48px;
  font-weight: 700;
}
.hero p {
  font-size: 20px;
  margin-top: 10px;
}
.section {
  padding: 80px 60px;
}
.section h2, .section h3 {
  font-size: 36px;
  margin-bottom: 20px;
}
.section p, .section ul {
  font-size: 18px;
  line-height: 1.6;
}
.cta {
  background: #f3f3f3;
  padding: 60px;
  text-align: center;
}
.cta h4 {
  font-size: 28px;
  margin-bottom: 20px;
}
.cta a {
  display: inline-block;
  background: #000;
  color: #fff;
  padding: 14px 32px;
  font-size: 18px;
  border-radius: 4px;
  text-decoration: none;
}
.container {
  padding: 80px 60px;
}
input, textarea {
  width: 100%;
  padding: 12px;
  margin-bottom: 20px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 16px;
}
button {
  background: #000;
  color: #fff;
  border: none;
  padding: 14px 28px;
  font-size: 16px;
  border-radius: 4px;
  cursor: pointer;
}
footer {
  background: #111;
  color: #aaa;
  text-align: center;
  padding: 40px 20px;
  font-size: 14px;
}

/* --- Mobile Responsive Enhancements --- */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
  }

  nav a {
    display: block;
    margin: 10px 0 0 0;
  }

  .hero {
    padding: 80px 20px;
  }

  .hero h2 {
    font-size: 32px;
  }

  .hero p {
    font-size: 16px;
  }

  .section,
  .container,
  .cta {
    padding: 40px 20px;
  }

  .section h2,
  .section h3 {
    font-size: 28px;
  }

  .section p,
  .section ul {
    font-size: 16px;
  }

  .cta h4 {
    font-size: 24px;
  }

  .cta a {
    font-size: 16px;
    padding: 12px 24px;
  }

  button {
    width: 100%;
  }
}