:root{
    --letter_color: #5c481a;
}


body{
    background-color: #ffffff;
}

.body_ {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    margin: 0;
    color: #333;
    width: 100%;
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    background-color: #ffffff;
    border-radius: 10px;
    width: 100%;
    margin: 0 auto;
}

.letter-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 200px;
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.letter {
    font-size: 40px;
    margin-bottom: 10px;
    color: var(--letter_color);
    font-weight: bold;
}

.names {
    list-style-type: none;
    padding: 0;
    margin: 0;
    border-top: 2px solid var(--letter_color);
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.names_li {
    padding-bottom: 7px;
    padding-top: 7px;
    border-top: 1px solid #dddddd;
    font-size: 15.5px;
    color: #555;
    cursor: pointer;
}

.names_li:hover{
    background-color: #d6d6d6;
}


@media (max-width: 860px) {
    .container{
        gap: 30px;
    }
    .letter-group {
        width: 150px;
        padding: 15px;
    }

    .letter {
        font-size: 32px;
    }

    .names li {
        font-size: 11.5px;
    }
}

@media (max-width: 430px) {
    .letter-group {
        width: 105px;
        padding: 10px;
    }

    .letter {
        font-size: 28px;
    }

    .names li {
        font-size: 7.9px;
    }
}