body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f8f9fb;
  color: #333;
}
.topbar {
  display: flex;
  justify-content: space-between;
  padding: 20px;
  background: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
}
nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #333;
}
nav .cta {
  background: #0d6efd;
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: 4px;
}
.hero {
  padding: 60px 20px;
  background: url('https://via.placeholder.com/1200x400') no-repeat center center;
  background-size: cover;
  text-align: center;
  color: #fff;
}
.hero h1 span {
  color: #ffc107;
}
.hero-buttons button {
  margin: 10px;
  padding: 12px 24px;
  border: none;
  border-radius: 5px;
}
.start {
  background-color: #fff;
  color: #0d6efd;
}
.learn {
  background-color: rgba(255,255,255,0.5);
  color: #fff;
}
.features, .testimonials, .form-section {
  padding: 40px 20px;
  text-align: center;
}
.cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 20px;
}
.card {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  width: 280px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
form {
  display: flex;
  flex-direction: column;
  max-width: 500px;
  margin: 0 auto;
}
input, label {
  margin-bottom: 15px;
  padding: 10px;
  border-radius: 5px;
  border: 1px solid #ccc;
}
button[type="submit"] {
  background-color: #0d6efd;
  color: white;
  border: none;
  padding: 12px;
  border-radius: 5px;
}
footer {
  background: #1e1e2f;
  color: #fff;
  padding: 40px 20px;
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
footer h4 {
  margin-top: 0;
}
footer ul {
  list-style: none;
  padding: 0;
}
footer li {
  margin: 5px 0;
}
footer p, footer a {
  color: #ccc;
  font-size: 0.9em;
}