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

/* Body */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  background: #f9f9f9;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
header {
  background: #4CAF50;
  color: white;
  padding: 15px 20px;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 1000;
}

header h1 {
  margin-bottom: 10px;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 20px;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
  padding: 5px 10px;
  border-radius: 6px;
  transition: background 0.3s;
}

nav a:hover,
nav a.active {
  background: rgba(255, 255, 255, 0.2);
}

/* Intro */
.intro {
  text-align: center;
  padding: 40px 20px;
}

.intro h2 {
  font-size: 2rem;
  margin-bottom: 10px;
  color: #333;
}

/* Menu Section */
.menu {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  padding: 20px;
}

.card {
  background: white;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  text-align: center;
  width: 280px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.card h3 {
  margin-bottom: 10px;
}

.btn {
  display: inline-block;
  margin-top: 10px;
  padding: 8px 15px;
  background: #4CAF50;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.3s;
}

.btn:hover {
  background: #45a049;
}

/* Footer */
footer {
  text-align: center;
  padding: 15px;
  background: #333;
  color: white;
  margin-top: auto;
  font-size: 0.9rem;
}