html, body {
    height: 100%;
    margin: 0;
    display: flex;
    flex-direction: column;
}

#ookii_block {
  width: 100vw; /* ширина равна 100% ширины вьюпорта */
  height: 100vh; /* высота равна 100% высоты вьюпорта */
  margin: 0; 
}

.page_no_karada_no_ue {
    height: 7vh;
    display: flex;
    margin: 0.5vw;
}

.page_no_karada_no_shita {
    height: 60vh;
}

.shitsumon_no_text {
    background: rgba(0,0,0,0.9);
    border-radius: 3vh;
    font-size: 3vh;
    margin: 1vh;
    padding: 1vh;
    text-align: center;
    font-family:Verdana, Geneva, Tahoma, sans-serif;
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr; /* 3 колонки по auto пикселей */
    align-items: center;
}

.grid div {
    background-color: rgb(39, 39, 39);
    color: white;
    margin: 1vh;
    padding: 1vh;
    border-radius: 16px;
    text-align: center;
    font-size: 5vh; 
}

.grid2 {
    display: none;
    font-size: 5vh;
    font-family: Arial;
    justify-content: center;
}

.grid2 input {
    border-radius: 1vh;
    height: 7vh;
    font-size: 5vh;
    margin: 2vh;
}

.grid2 button {
    margin-top: 1vh;
    padding: 1vh;
    font-size: 5vh;
    border-radius: 2vh;
    margin: 2vh;
}

.kanji_no_group {
    width: 97vw;
    font-size: 3vh;
    padding: 1.5vh;
    margin: 0.5vh;
    border-radius: 2vh;
}

#hint {
    color: rgb(255, 236, 174);
    text-align: center;
    font-size: 1.5vw;
}

#hint:hover {
    color: red;
    text-decoration: underline;
    cursor: pointer;
}

#winfails_div {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    width: 99vw;
    height: 5vh;
}

#fail_no_div {
    background: rgb(75, 0, 0);
    width: 50%;
    margin-left: 0.3vh;
}

#win_no_div {
    background: rgb(0, 107, 121);
    width: 50%;
    margin-right: 0.3vh;
}

#winfails_div div {
    text-align: center;
    font-family: arial;
}

.chekkubokusu_no_forumu {
    text-align: center;
    font-family: arial;
    font-size: 150%;
}

#kanji_no_selector {
    background: rgba(0,0,0,0.85);
}

#kanji_no_selector option {
    background: rgba(0,0,0,0);
    color: #8b8985;
}

#kanji_no_selector option:checked {
    background: rgba(0,0,0,0);
    color: #ffba66;
}

.kotae_no_input {
    background: black;
    padding: 1vh;
    text-align: center;
    vertical-align: middle;
    width: 90vw;
}

.tsugi {
    background: rgb(39, 39, 39);    
}

#te_dake_de {
    transform: scale(1.7);
    margin-right: 1vw;
    margin-bottom: 3vh;
}

button {
    background: black;
    padding: 1vh;
    margin-bottom: 1vh;
    margin-left: 2vw;
    border-color: rgb(255, 236, 174);
}

#random_kanji_to_print_quantity {
    background: black;
    border-color: rgb(255, 236, 174);
    border-radius: 10px;
    text-align: center;
    font-size: 3vh;
    width: 10vw;
}

label {
    vertical-align: middle;
    padding: 1vw;
}

#fonto_saizo {
    background: black;
    border-color: rgb(255, 236, 174);
    border-radius: 10px;
    text-align: center;
    font-size: 3vh;
    width: 10vw;
}

#gen_div {
    display: flex;
    flex-direction: row;
    justify-content: center; /* Выравнивание по горизонтали */
    margin: 1vh;
    padding: 1vh;
    background: rgba(0,0,0,0.9);
    border-radius: 1vh;
}

.labels {
    font-size: 2.5vh;
    margin: 0.2vh;
    border-radius: 12px;
}

@media only screen and (max-device-width: 1080px) {

    .grid {
    display: grid;
    grid-template-columns: 33% 33% 33%; /* 3 колонки по auto пикселей */
    align-items: center;
    
}
    
    .labels {
    font-size: 2vh;
    margin: 0.1vh;
    border-radius: 15px;
}
    
    #kanji-list-hint {
        display: none;
    }
    
    #gen_div {
        width: 100vw;
        margin-left: 1vw;
        display: flex;
        flex-wrap: wrap;
    }
    
    .chekkubokusu_no_forumu {
    text-align: center;
    font-family: arial;
    font-size: 120%;
}
    
    .grid div {
    word-wrap: break-word;
    margin: 0.5vh;
    padding: 1vh;
    font-size: 6vh;
}
    
    .grid div {
        font-size: 3vh;
    }

    #hint {
        color: rgb(255, 236, 174);
        text-align: center;
        font-size: 6vw;
    }
    
}