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

body {
  background: #111;
  color: #fff;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: #000;
  position: sticky;
  top: 0;
}

.logo {
  font-size: 24px;
  font-weight: bold;
  color: #f44336;
}

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

nav a:hover {
  color: #f44336;
}

.hero {
  height: 90vh;
  background: linear-gradient(to right, #000, #222);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero h1 {
  font-size: 50px;
  margin-bottom: 10px;
}

.hero button {
  margin-top: 20px;
  padding: 12px 25px;
  background: #f44336;
  border: none;
  color: white;
  font-size: 16px;
  cursor: pointer;
  border-radius: 5px;
}

.section {
  padding: 60px 40px;
  text-align: center;
}

.dark {
  background: #000;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.card {
  background: #222;
  padding: 20px;
  border-radius: 8px;
}

form {
  max-width: 400px;
  margin: auto;
  display: flex;
  flex-direction: column;
}

form input, form textarea {
  margin-bottom: 15px;
  padding: 10px;
  border-radius: 5px;
  border: none;
}

form button {
  padding: 10px;
  background: #f44336;
  border: none;
  color: white;
  cursor: pointer;
  border-radius: 5px;
}

footer {
  text-align: center;
  padding: 20px;
  background: #000;
}