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

body {
    font-family: Arial, sans-serif;
    background: #006400	;
    padding: 20px;
}

nav {
    background: #333;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    padding: 5px 10px;
}

nav a:hover {
    background: #555;
    border-radius: 3px;
}

.container {
    max-width: 1200px;
    margin: auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1 {
    margin-bottom: 20px;
    color: #333;
}

form {
    max-width: 400px;
    margin: auto;
}

input, textarea {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
}

button {
    background: #333;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #555;
}

.message {
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
}

.success {
    background: #d4edda;
    color: #155724;
}

.error {
    background: #f8d7da;
    color: #721c24;
}

.products {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.product-card {
    border: 1px solid #ddd;
    padding: 15px;
    border-radius: 5px;
    background: #f9f9f9;
}

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

.price {
    font-size: 20px;
    color: #28a745;
    font-weight: bold;
    margin: 10px 0;
}