* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #111;
  background: #f7f5f1;
  line-height: 1.6;
}

header {
  background: #ffffff;
  border-bottom: 1px solid #e5e5e5;
}

nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  gap: 24px;
}

nav a {
  text-decoration: none;
  color: #111;
  font-weight: 600;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.hero {
  padding: 72px 0 40px;
}

.hero h1 {
  font-size: 48px;
  line-height: 1.1;
  max-width: 800px;
  margin: 0 0 16px;
}

.hero p {
  font-size: 18px;
  max-width: 700px;
  margin: 0;
  color: #444;
}

.section {
  margin-top: 56px;
}

.section h2 {
  font-size: 30px;
  margin-bottom: 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.card {
  background: #ffffff;
  border: 1px solid #e8e3db;
  border-radius: 16px;
  padding: 24px;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 22px;
}

.card p {
  margin-bottom: 18px;
  color: #555;
}

.button {
  display: inline-block;
  padding: 12px 18px;
  background: #111;
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
}

.cta-box {
  background: #ffffff;
  border: 1px solid #e8e3db;
  border-radius: 18px;
  padding: 32px;
}

footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
  color: #666;
  font-size: 14px;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 34px;
  }

  nav {
    flex-wrap: wrap;
    gap: 14px;
  }
}