body {
  font-family: "Roboto", sans-serif;
  margin: 0;
  padding: 0;
  background: #f5f7fa;
  color: #333;
}
header {
  background-color: #1f1f2e;
  color: white;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
header img {
  height: 40px;
}
nav a {
  color: white;
  margin-left: 1.5rem;
  text-decoration: none;
  font-weight: 500;
}
nav a:hover {
  text-decoration: underline;
}
.hero {
  background: radial-gradient(circle at top left, #1f1f2e, #2c3e50);
  color: white;
  text-align: center;
  padding: 5rem 2rem 4rem;
}
.hero img {
  height: 70px;
  margin-bottom: 1rem;
}
.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.2rem;
  max-width: 750px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}
.hero button {
  background-color: #ffce00;
  color: #000;
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
}
section {
  padding: 4rem 2rem;
  max-width: 1000px;
  margin: 0 auto;
}
section h2 {
  margin-bottom: 1.2rem;
  color: #1f1f2e;
}
.section-content {
  line-height: 1.7;
}
ul {
  padding-left: 1.5rem;
}
.decorative-image {
  display: block;
  max-width: 300px;
  margin: 2rem auto 0;
  border-radius: 8px;
  opacity: 0.95;
}
footer {
  background-color: #1f1f2e;
  color: white;
  text-align: center;
  padding: 1.5rem;
  font-size: 0.9rem;
  margin-top: 4rem;
}
@media (max-width: 600px) {
  nav a {
    display: block;
    margin: 0.5rem 0;
  }
  header {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero h1 {
    font-size: 2rem;
  }
}