body {
    font-family: Arial;
    background: #f2f6f7;
    margin: 0;
}

header {
    background: #1b7f5c;
    color: white;
    text-align: center;
    padding: 20px;
}

nav {
    background: #145c43;
    padding: 10px;
    text-align: center;
}

nav a {
    color: white;
    margin: 10px;
    text-decoration: none;
}

section {
    background: white;
    margin: 20px;
    padding: 20px;
    border-radius: 8px;
}

input, textarea, select {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
}

button {
    background: #1b7f5c;
    color: white;
    padding: 10px;
    border: none;
    margin-top: 10px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    background: #1b7f5c;
    color: white;
}

th, td {
    border: 1px solid #ccc;
    padding: 8px;
}