body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f6f9;
  color: #333;
}
.container, .form-container {
  width: 90%;
  max-width: 400px;
  margin: 80px auto;
  text-align: center;
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
h1, h2 { color: #2c3e50; }
.btn {
  display: inline-block;
  background: #27ae60;
  color: white;
  padding: 10px 20px;
  margin: 10px 0;
  text-decoration: none;
  border-radius: 5px;
  cursor: pointer;
}
.btn:hover { background: #219150; }
input, textarea {
  width: 100%;
  padding: 10px;
  margin: 10px 0;
  border: 1px solid #ccc;
  border-radius: 5px;
}
.sidebar {
  width: 200px;
  position: fixed;
  top: 0; left: 0;
  height: 100%;
  background: #2c3e50;
  color: white;
  padding-top: 20px;
}
.sidebar h2 { text-align: center; }
.sidebar a {
  display: block;
  padding: 10px;
  color: white;
  text-decoration: none;
  margin: 5px 0;
}
.sidebar a:hover { background: #34495e; }
.content {
  margin-left: 220px;
  padding: 20px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.card {
  background: #fff;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  text-align: center;
}
.card img {
  width: 100%;
  border-radius: 10px;
}