.wrapper {
    width: 100%;
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

.conteiner {
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    position: relative;
}

/* header */
.header {
    width: 100%;
    height: 60px;
    background: #333 repeating-linear-gradient(90deg,
            rgba(30, 15, 140, 0.36), rgba(37, 124, 201, 0.37) 5px,
            rgba(10, 26, 89, 0.38) 5px, rgba(123, 159, 225, 0.37) 10px);
    box-shadow: rgba(0, 0, 0, 0.17) 0px -23px 25px 0px inset, rgba(0, 0, 0, 0.15) 0px -36px 30px 0px inset, rgba(0, 0, 0, 0.1) 0px -79px 40px 0px inset, rgba(0, 0, 0, 0.06) 0px 2px 1px, rgba(0, 0, 0, 0.09) 0px 4px 2px, rgba(0, 0, 0, 0.09) 0px 8px 4px, rgba(0, 0, 0, 0.09) 0px 16px 8px, rgba(0, 0, 0, 0.09) 0px 32px 16px;
}

/* footer */
.footer {
    width: 100%;
    background: #333 repeating-linear-gradient(90deg,
            rgba(30, 15, 140, 0.36), rgba(37, 124, 201, 0.37) 5px,
            rgba(10, 26, 89, 0.38) 5px, rgba(123, 159, 225, 0.37) 10px);
}

/* page */
.main {
    flex: 1 1 auto;
}

.page {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #e6e9f0, #eef1f5);
    box-shadow: 0 0 40px rgba(0, 0, 0, .2) inset;
    padding: 20px;
    text-align: center;
}

h1 {
    font-size: 28px;
    font-weight: 700;
    color: #0c2e5e;
    text-align: center;
    padding-top: 20px;
}

.task_text {
    font-size: 20px;
    text-align: left;
    font-weight: 700;
    font-style: italic;
    color: #0c2e5e;
    padding: 20px 30px;
}

.subtitle_text {
    font-size: 20px;
    font-weight: 700;
    text-align: left;
    color: brown;
    padding: 20px 30px;
}

.plain_text {
    font-size: 16px;
    font-style: italic;
    color: #000;
    padding: 10px 20px;
    text-align: justify;
    text-indent: 30px;
}

.ris {
    width: 80%;
    padding: 5px;
    margin: 10px 0;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), -23px 0 20px -23px rgba(0, 0, 0, 0.8),
        23px 0 20px -23px rgba(0, 0, 0, 0.8), 0 0 40px rgba(0, 0, 0, 0.1) inset;
}

.bill li {
    list-style-type: disc;
    text-align: justify;
    font-size: 18px;
    font-style: italic;
    margin: 0 50px;
    padding: 7px 20px;
    word-wrap: break-word;
}

/* локальное меню */
.local_menu_conteiner {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;
    position: fixed;
    top: 60px;
    right: -450px;
}

.local_menu_icon {
    width: 50px;
    height: 50px;
    background-color: rgba(209, 206, 206, 0.5);
    border-radius: 50%;
    box-shadow:
        inset rgba(0, 0, 0, .6) 0 -3px 8px,
        inset rgba(252, 255, 255, .7) 0 3px 8px,
        rgba(0, 0, 0, .8) 0 3px 8px -3px;
    cursor: pointer;
}

.field_conteiner {
    display: none;
    width: 250px;
    height: 290px;
    overflow: hidden;
    overflow-y: auto;
    background-color: rgb(209, 206, 206);
    box-shadow:
        inset rgba(0, 0, 0, .6) 0 -3px 8px,
        inset rgba(252, 255, 255, .7) 0 3px 8px,
        rgba(0, 0, 0, .8) 0 3px 8px -3px;
}

.field_conteiner::-webkit-scrollbar {
    display: none;
}

.field_contents {
    display: flex;
}

.field_content {
    padding: 10px;
}

.field_item {
    font-size: 20px;
    font-style: italic;
    color: #000;
    padding: 10px;
    line-height: 100%;
    cursor: pointer;
}

.btn_close {
    font-size: 28px;
    color: #000;
    position: fixed;
    margin: 20px 10px 20px 200px;
    cursor: pointer;
}

hr {
    width: 90%;
    margin: 0 auto;
    border: 4px ridge #a5bbd8;
}

/* Адаптация */
@media(max-width:1200px) {
    .conteiner {
        max-width: 970px;
    }

    .local_menu_conteiner {
        right: -340px;
    }
}

@media(max-width:992px) {
    .conteiner {
        max-width: 750px;
    }

    .local_menu_conteiner {
        right: -230px;
    }
}

@media(max-width:767px) {
    .conteiner {
        max-width: none;
    }

    .local_menu_conteiner {
        right: -120px;
    }
}

@media(max-width:550px) {
    /*до 340px*/

    .local_menu_conteiner {
        left: 20px;
    }
}