body {
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

h1, h2 {
    color: #213d1c;
    text-align: center;
}

img {
    max-width: 100%;
    height: auto;
}

.center {
    text-align: center;
}

strong {
    font-size: 18px;
    color: #213d1c;
    display: block;
    margin-top: 20px;
}

form {
    background-color: #f8f8f8;
    padding: 20px;
    border: 2px solid #213d1c;
    border-radius: 9px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    width: 100%;
    text-align: center;
}

input[type="text"] {
    width: calc(100% - 22px);
    padding: 8px;
    margin-top: 5px;
    border: 1px solid #213d1c;
    border-radius: 4px;
    box-sizing: border-box;
}

input[type="submit"] {
    background-color: #213d1c;
    color: #ffffff;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 20px;
    width: auto;
}

input[type="submit"]:hover {
    background-color: #395929;
}

a {
    color: #213d1c;
    text-decoration: none;
    font-weight: bold;
}

a:hover {
    text-decoration: underline;
}