/* @import "./fonts.css";
@import "./colors.css";
@import "./texts.css";
@import "./common.css";
@import "./ui.css";
@import "./header.css";
@import "./footer.css"; */

.formula {
    position: relative;
    width: 1225px;
    margin: 0 auto;
    min-height: 975px;
    padding-top: 45px;
    display: flex;
    overflow: hidden;
    position: relative;
}

/* Добавляем фоновое изображение через псевдоэлемент с picture */
.formula::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background-image: url(../img/formula/bg.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

/* Для WebP поддержки можно добавить */
.formula.webp::before {
    background-image: url(../img/formula/bg.webp);
}

.formula-title {
    color: #123274;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 48px;
    position: relative;
    z-index: 1;
}
.formula-control {
    color: #123274;
    font-weight: 500;
    font-size: 18px;
    display: flex;
    gap: 12px;
    transition: all .25s linear;
    cursor: pointer;
}
.formula-control svg path {
    transition: all .25s linear;
}
.formula-control:hover svg path {
    stroke: #E41846;
}
.formula-control.active svg path {
    stroke: #E41846;
}
.formula-control.active {
    color: #E41846;
}
.formula-control:hover {
    color: #E41846;
}
.formula-control:not(:last-child) {
    margin-bottom: 20px;
}
.formula-content__top,
.formula-content__bottom {
    position: relative;
    z-index: 1;
}
.formula-content__back-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    outline: 0;
    color: #123274;
    font-size: 18px;
    font-weight: 500;
}
.formula-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 100%;
}
.formula-content {
    position: relative;
    overflow: hidden;
}
.molecula {
    position: absolute;
    width: 2509px;
    height: 2575px;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
}
.molecula-image {
    transition: all .7s linear .25s;
    transform-origin: center;
}
.molecula-image picture,
.molecula-image img {
    width: 100%;
    height: 100%;
}
.molecula-item .molecul-item__title {
    font-size: 37px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    margin-bottom: 20px;
}
.molecula-item .molecul-item__descr {
    font-size: 15px;
    font-weight: 500;
    line-height: 1.4;
    text-align: center;
}
.molecula-item {
    position: absolute;
    left: 14%;
    top: 44%;
    z-index: 10;
    width: 18%;
    opacity: 0;
    visibility: hidden;
    transition: all .25s linear .7s;
}
.molecula-item.active {
    opacity: 1;
    visibility: visible;
}
.molecul-item__btn {
    text-align: center;
    margin-top: 25px;
}
.molecul-item__btn span {
    display: flex;
    width: 166px;
    height: 46px;
    align-items: center;
    justify-content: center;
    border-radius: 50px;
    font-size: 19px;
    font-weight: 500;
    color: #fff;
    background-color: #E41846;
    margin: 0 auto;
    cursor: pointer;
}
.formula-items {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    transform: translateX(100%);
    transition: all .5s linear;
    z-index: 10;
}
.formula-items.active {
    transform: translateX(0);
}
.formula-item {
    display: none;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}
.formula-item.active {
    display: flex;
}

/* Заменяем background-image на псевдоэлемент */
.formula-item {
    position: relative;
    overflow: hidden;
}

.formula-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background-image: url(../img/formula/molecula-bg.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.formula-item.webp::before {
    background-image: url(../img/formula/molecula-bg.webp);
}

.formula-item__content {
    padding-top: 45px;
    padding-bottom: 45px;
    display: flex;
    width: 100%;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}
.formula-item__image {
    position: absolute;
    right: 0;
    top: 0;
    width: 588px;
    z-index: 2;
}
.formula-item__image picture,
.formula-item__image img {
    max-width: 100%;
}
.formula-content__title {
    font-weight: 700;
    color: #123274;
    margin-bottom: 24px;
    font-size: 50px;
    line-height: 1.18;
}
.formula-item__texts {
    border: 1px solid #123274;
    border-radius: 25px;
    width: 885px;
    min-height: 340px;
    padding: 25px 5px 25px 25px;
}
.formula-item__texts div.active {
    max-height: 340px;
    min-height: 340px;
    padding-right: 90px;
    overflow-y: auto;
}
.formula-item__texts div.active::-webkit-scrollbar {
    width: 6px;
}
 
.formula-item__texts div.active::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 3px #123274; 
    border-radius: 10px;
}
.formula-item__texts div.active::-webkit-scrollbar-thumb {
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 63px #123274; 
}
.formula-item__texts div {
    margin: 0;
    font-size: 16px;
    font-weight: 500;
    color: #123274;
    line-height: 1.55;
}
.formula-item__tags {
    width: 785px;
    margin-bottom: 35px;
    gap: 12px;
    display: flex;
    flex-wrap: wrap;
}
.formula-item__tag {
    display: flex;
    height: 41px;
    align-items: center;
    justify-content: center;
    padding: 0 18px;
    border-radius: 50px;
    background-color: #A1E0FF;
    color: #0F5698;
    transition: all .25s linear;
    cursor: pointer;
    font-weight: 500;
    font-size: 19px;
}
.formula-item__tag.active,
.formula-item__tag:hover {
    background-color: #E41846;
    color: #fff;
}
.formula-item__texts div {
    display: none;
}
.formula-item__texts div.active {
    display: block;
}
.formula-item__texts ul li::marker {
    color: #E41846
}
.formula-item__texts ul {
    margin: 0;
    padding-left: 17px;
    font-size: 16px;
    font-weight: 500;
    color: #123274;
    line-height: 1.55;
}

@media (min-width: 1200px) {
    .molecula-image-mobile {
        display: none;
    }
    .formula-content__bottom.formula-content__bottom-mobile {
        display: none;
    }
}

@media (max-width: 1200px) {
    .molecula {
        position: absolute;
        width: 1670px;
        height: 1714px;
        margin-top: -180px;
        transform: translateY(0) translateX(-50%);
        left: 50%;
        top: 250px;
    }
    .formula {
        width: 100%;
    }
    .formula-title {
        font-size: 25px;
        padding-left: 20px;
        padding-right: 20px;
        margin-bottom: 25px;
    }
    .formula-controls {
        display: flex;
        padding-left: 20px;
        padding-right: 20px;
        flex-wrap: wrap;
    }
    .formula-control {
        width: calc(100% / 3);
    }
    .formula-content__bottom {
        display: none;
    }
    .formula {
        min-height: 800px;
    }
    .molecula-item {
        transform: translateX(-50%);
        left: 50%;
        width: 300px;
        top: 250px;
    }
    .molecul-item__title {
        font-size: 18px;
    }
    .molecula-image-desktop {
        display: none;
    }
    .molecula-item .molecul-item__title {
        font-size: 16px;
    }
    .molecula-item .molecul-item__descr {
        font-size: 13px;
    }
    .molecula-item .molecul-item__title {
        margin-bottom: 10px;
    }
    .molecul-item__btn {
        margin-top: 15px;
    }
    .molecul-item__btn span {
        font-size: 16px;
        width: 130px;
        height: 35px;
    }
    .formula-content__bottom.formula-content__bottom-mobile {
        display: flex;
        padding-left: 20px;
        padding-right: 20px;
        margin-bottom: 40px;
    }
    .formula-content {
        justify-content: flex-start;
    }
    .formula-control {
        font-size: 16px;
    }
    .formula-item {
        padding: 0 20px;
    }
    .formula-content__title {
        font-size: 30px;
    }
    .formula-item__image {
        width: 220px;
    }
    .formula-item__tag {
        height: 30px;
        padding: 0 8px;
        font-size: 15px;
    }
    .formula-item__texts div,
    .formula-item__texts ul {
        font-size: 14px;
    }
    .formula-item__texts {
        width: 100%;
        min-height: auto;
        padding: 20px;
    }
    .formula-item__content {
        justify-content: flex-start;
    }
    .formula-item__bottom {
        margin-top: 60px;
    }
    .formula-item {
        overflow-y: auto;
    }
    .formula-item__texts div.active {
        max-height: none;
        padding-right: 0;

    }
}
@media (max-width: 992px) {
    .formula-item__tags {
        width: auto;
    }
}

@media (max-width: 576px) {
    .formula-control:not(:last-child) {
        margin-bottom: 15px;
    }
    .formula-control {
        width: 100%;
        font-size: 14px;
    }
    .molecula {
        margin-top: -110px;
    }
    .formula-control__title br {
        display: none;
    }
    .formula-title {
        font-size: 22px;
    }
    .formula-item__tag {
        font-size: 13px;
    }
    .formula-item__texts {
        margin-bottom: 20px;
    }
}

@media (max-width: 400px) {
    .formula-title {
        font-size: 18px;
    }
}