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

/* Body */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #0d1117;
  color: #c9d1d9;
  line-height: 1.6;
}

/* Header */
header {
  background-color: #161b22;
  padding: 20px;
  text-align: center;
  border-bottom: 1px solid #30363d;
}

header h1 {
  font-size: 2rem;
  color: #58a6ff;
}

nav a {
  margin: 0 15px;
  color: #8b949e;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  color: #58a6ff;
}

/* Hero Section */
.hero {
  padding: 60px 20px;
  text-align: center;
  background: linear-gradient(135deg, #0d1117, #161b22);
}

.hero h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  background-color: #238636;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.btn:hover {
  background-color: #2ea043;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  background-color: #161b22;
  border-top: 1px solid #30363d;
  font-size: 0.9rem;
}