* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", sans-serif;
  line-height: 1.6;
  background: #f7f9fc;
  color: #333;
}

header.header {
  background: #3f51b5;
  color: #fff;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header nav a {
  color: #fff;
  margin-left: 20px;
  text-decoration: none;
  font-weight: bold;
}

.hero {
  padding: 100px 40px;
  text-align: center;
  background: linear-gradient(to right, #7986cb, #5c6bc0);
  color: white;
}

.btn {
  display: inline-block;
  padding: 10px 25px;
  background: #ffca28;
  color: #333;
  margin-top: 20px;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
}

.section {
  padding: 60px 40px;
}

ul {
  list-style: none;
  padding-left: 0;
}

ul li {
  padding: 10px 0;
  font-size: 18px;
}

.cards {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.card {
  flex: 1 1 250px;
  background: white;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
}

.contact form {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 500px;
  margin: auto;
}

input, textarea {
  padding: 10px;
  border-radius: 5px;
  border: 1px solid #ccc;
}

button {
  padding: 10px;
  background: #3f51b5;
  color: white;
  border: none;
  border-radius: 5px;
  font-weight: bold;
}

footer {
  background: #333;
  color: #eee;
  text-align: center;
  padding: 20px;
}