* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

h1 {
    width: 560px;
    margin: 20px auto;
    padding: 14px;
    text-align: center;
    background-color: #6b8e7f;
    color: white;
    font-size: 22px;
    border-radius: 4px;
}

h2 {
    text-align: center;
    color: #6b8e7f;
    margin-bottom: 15px;
}


.wrapper {
    width: 560px;
    margin: auto;
}


.grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.grid a {
    padding: 14px;
    background-color: white;
    text-align: center;
    text-decoration: none;
    color: #6b8e7f;
    border: 1px solid #cfcfcf;
    border-radius: 4px;
    font-weight: bold;
}


.container {
    display: flex;
    gap: 15px;
}


.box {
    background-color: white;
    padding: 15px;
    border: 1px solid #cfcfcf;
    border-radius: 4px;
    width: 100%;
}


input {
    width: 100%;
    padding: 6px 4px;
    margin-bottom: 14px;
    border: none;
    border-bottom: 2px solid #6b8e7f;
    background-color: transparent;
    font-size: 14px;
}

input:focus {
    outline: none;
    border-bottom-color: #4f6f62;
}


button {
    width: 100%;
    padding: 8px;
    background-color: #6b8e7f;
    color: white;
    border: none;
    border-radius: 3px;
    font-size: 14px;
    cursor: pointer;
}


.result {
    margin-top: 12px;
    padding: 8px;
    background-color: #eeeeee;
    border: 1px solid #cfcfcf;
    border-radius: 3px;
    font-size: 14px;
}


.back {
    display: block;
    text-align: center;
    margin: 15px auto;
    text-decoration: none;
    color: #6b8e7f;
    font-weight: bold;
}


@media (max-width: 600px) {
    h1,
    .wrapper {
        width: 95%;
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .container {
        flex-direction: column;
    }
}