* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

body {
  background: #fff;
  color: #000;
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

.navbar {
  padding: 20px 0;
  border-bottom: 1px solid #000;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: bold;
  letter-spacing: 3px;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #000;
}

.hero {
  padding: 100px 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.section {
  padding: 80px 0;
}

.section h2 {
  text-align: center;
  margin-bottom: 40px;
}

.dark {
  background: #000;
  color: #fff;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card,
.price-card {
  border: 1px solid currentColor;
  padding: 30px;
  text-align: center;
}

.price {
  font-size: 1.5rem;
  margin: 20px 0;
}

.featured {
  background: #fff;
  color: #000;
}

.dark .featured {
  background: #fff;
  color: #000;
}

.btn {
  padding: 12px 25px;
  border: 1px solid currentColor;
  text-decoration: none;
  display: inline-block;
  margin-top: 20px;
  cursor: pointer;
}

.primary {
  background: #000;
  color: #fff;
}

.dark .primary {
  background: #fff;
  color: #000;
}

form {
  max-width: 500px;
  margin: auto;
  display: flex;
  flex-direction: column;
}

form input,
form textarea {
  margin-bottom: 15px;
  padding: 12px;
  border: none;
}

footer {
  text-align: center;
  padding: 20px;
  border-top: 1px solid #000;
}