body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background-color: #ffffff;
  color: #333;
}
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem;
}
.hero {
  text-align: center;
  padding: 3rem 1rem;
}
.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
}
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: bold;
}
.btn.primary {
  background-color: #2563eb;
  color: white;
}
.btn.secondary {
  border: 2px solid #2563eb;
  color: #2563eb;
}
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  padding: 2rem 0;
}
.card {
  border: 1px solid #ddd;
  padding: 1.5rem;
  border-radius: 1rem;
  background: #f9f9f9;
}
.signup {
  text-align: center;
  background: #f0f4f8;
  padding: 2rem;
  border-radius: 1rem;
}
.signup-form {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.signup-form input {
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid #ccc;
}
.signup-form button {
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  background-color: #2563eb;
  color: white;
  border: none;
  cursor: pointer;
}