body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f7f7f7;
  color: #333;
}

header {
  background: #111;
  color: #fff;
  display: flex;
  align-items: center;
  padding: 20px;
}

.logo a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.2em;
  margin-right: auto;
}

nav ul {
  list-style: none;
  display: flex;
  margin: 0;
}

nav li {
  margin: 0 10px;
}

nav a {
  color: #fff;
  text-decoration: none;
  padding: 20px 0;
}

nav a:hover, nav a.active {
  text-decoration: underline;
}

.hero {
  background: linear-gradient(to bottom right, #3f51b5, #5c6bc0);
  color: #fff;
  padding: 100px 20px;
  text-align: center;
}

.hero h1 {
  font-size: 2.5em;
  margin: 0;
}

.hero p {
  font-size: 1.2em;
  margin: 20px 0;
}

.cta-button {
  display: inline-block;
  background: #fff;
  color: #3f51b5;
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
}

.cta-button:hover {
  background: #eee;
}

main {
  padding: 40px 20px;
}

.product-section, .about-section, .content-section {
  max-width: 800px;
  margin: 0 auto 40px auto;
  background: #fff;
  padding: 20px;
  border-radius: 5px;
}

.product-section h2, .about-section h2, .content-section h1, .content-section h2 {
  margin-top: 0;
}

footer {
  background: #111;
  color: #fff;
  text-align: center;
  padding: 20px;
}

#contact-form {
  display: flex;
  flex-direction: column;
  max-width: 500px;
  margin: 20px 0;
}

#contact-form label {
  margin-bottom: 5px;
  font-weight: bold;
}

#contact-form input, #contact-form textarea {
  margin-bottom: 15px;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

#contact-form button {
  background: #3f51b5;
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: 5px;
  cursor: pointer;
}

#contact-form button:hover {
  background: #303f9f;
}