/* Reset and base styles */
* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f3f3f3;
  color: #222;
  line-height: 1.6;
}

a {
  color: #006400;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Page layout */
.page-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
header {
  background-color: #2e7d32;
  color: #fff;
  padding: 20px 15px;
  text-align: center;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

header h1 {
  margin: 0 0 10px;
  font-size: 2.4rem;
}

header p {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 300;
}

/* Main content */
.content {
  flex: 1 0 auto;
  overflow-y: auto;
  padding: 20px 30px;
  max-width: 900px;
  margin: 0 auto;
}

.content section {
  margin-bottom: 2rem;
}

.content h2 {
  color: #2e7d32;
  border-bottom: 2px solid #388e3c;
  padding-bottom: 5px;
  margin-bottom: 10px;
}

/* GitHub button */
.github-button {
  display: inline-block;
  padding: 12px 20px;
  background-color: #43a047;
  color: white;
  font-weight: bold;
  border-radius: 6px;
  margin-top: 10px;
  transition: background-color 0.3s ease;
}

.github-button:hover {
  background-color: #388e3c;
  text-decoration: none;
}

/* Footer */
.footer {
  flex-shrink: 0;
  background-color: #2e7d32;
  color: white;
  text-align: center;
  padding: 15px 10px;
  font-size: 0.9rem;
  box-shadow: 0 -2px 5px rgba(0,0,0,0.2);
}

.footer a {
  color: #a5d6a7;
  font-weight: 600;
}