body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f6f8;
  color: #111;
}

.container {
  max-width: 700px;
  margin: 20px auto;
  padding: 15px;
}

.card {
  background: white;
  border-radius: 16px;
  padding: 25px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
  margin-bottom: 25px;
}

.hero {
  text-align: center;
}

.hero h1 {
  font-size: 26px;
  margin-bottom: 10px;
}

.hero p {
  color: #555;
  margin-bottom: 20px;
}

.cta {
  display: inline-block;
  background: #1e73d8;
  color: white;
  padding: 14px 22px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: bold;
}

.cta:hover {
  opacity: 0.9;
}

.section-title {
  margin: 20px 5px;
}

.grid {
  display: grid;
  gap: 15px;
}

.box {
  background: white;
  padding: 18px;
  border-radius: 12px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.box h3 {
  margin-bottom: 5px;
}

.box p {
  color: #555;
}

.how ol {
  padding-left: 18px;
  line-height: 1.7;
}

.secondary {
  margin-top: 15px;
  display: inline-block;
}

@media(min-width:768px){
  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
}