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

body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
    padding: 20px;
}

header {
    background-color: #037e5f;
    color: white;
    text-align: center;
    padding: 20px 0;
}

header h1 {
    font-size: 24px;
}

nav {
    background-color: #02694f;
    padding: 10px 0;
    text-align: center;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin-right: 20px;
}

nav ul li a {
    text-decoration: none;
    color: #fff;
    font-weight: bold;
    padding: 10px 20px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

nav ul li a:hover {
    background-color: #034b36;
}

section {
    margin-top: 20px;
    background-color: #115b39;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

section h2 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #fff;
    text-align: center;
}

.box {
    background-color: #f0f0f0;
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.box h3 {
    font-size: 16px;
    margin-bottom: 5px;
    color: #333;
}

.box input[type="number"] {
    width: 100px;
    padding: 8px;
    border-radius: 4px;
    border: 1px solid #ccc;
    margin-top: 5px;
}

button {
    background-color: #02694f;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #034b36;
}