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

body {
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  background-color: #f0f4f8;
  color: #333;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

header.hero {
  background: linear-gradient(to right, #1976d2, #0d47a1);
  color: white;
  padding: 80px 20px;
  text-align: center;
}

header.hero h1 {
  font-size: 36px;
  margin-bottom: 20px;
}

header.hero p {
  font-size: 18px;
  margin-bottom: 30px;
}

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s ease;
}

.btn-primary {
  background-color: #ffffff;
  color: #0d47a1;
  border: 2px solid #ffffff;
}

.btn-primary:hover {
  background-color: #e3f2fd;
}

.btn-secondary {
  background-color: #0d47a1;
  color: #fff;
  border: none;
}

.btn-secondary:hover {
  background-color: #1565c0;
}

section.about,
section.content {
  background: #ffffff;
  margin-top: 20px;
  padding: 40px 20px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

section h2 {
  font-size: 24px;
  margin-bottom: 20px;
  color: #0d47a1;
}

footer {
  text-align: center;
  padding: 20px;
  background-color: #e3f2fd;
  font-size: 14px;
  color: #333;
}