.about {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 100vh;
    padding-top: 100px;
    box-sizing: border-box;
}

.about__content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-items: center;
}

.about__title {
    margin-top: 60px;
    grid-column: 1 / -1;
    text-align: start;
    margin-bottom: 20px;
}

.about__subtitle::before {
    content: "";
    display: inline-block;
    margin-bottom: 1vh;
    margin-right: 15px;
    width: 10px;
    height: 10px;
    background-color: var(--color-accent);
}

.about__text {
    margin-bottom: clamp(1.25rem, 1.161rem + 0.45vw, 1.875rem);
    width: clamp(18.75rem, 13.125rem + 28.13vw, 58.125rem);
}

.about__block--left {
    display: grid;
    grid-template-columns: 1fr;
    justify-content: center;
    position: relative;
    gap: clamp(0.625rem, 0.536rem + 0.45vw, 1.25rem);
}

.about__img {
    position: absolute;
    top: 0;
    right: 0;
    max-width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 0;
}

.about__block--right {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 400px;
}

.neuro__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.neuro__title {
    text-align: center;
}

.neuro__content > .title::after {
    content: "";
    display: block;
    width: 80px;
    height: 4px;
    background: var(--color-accent);
    margin: 1rem auto;
    border-radius: 2px;
    box-shadow: 0 0 10px var(--color-accent);
}

.neuro__definition {
    margin-bottom: clamp(1.875rem, 1.696rem + 0.89vw, 3.125rem);
    padding: 20px;
    border-radius: 12px;
    transition: transform 0.2s ease;
}

.neuro__example {
    display: flex;
    align-items: center;
    gap: clamp(0.625rem, 0.536rem + 0.45vw, 1.25rem);
    margin-bottom: clamp(1.875rem, 1.696rem + 0.89vw, 3.125rem);
}

.neuro__example-img {
    width: 100px;
    height: 100px;
    object-fit: contain;
}

.neuro__list {
    counter-reset: neuro-counter;
    padding: 20px;
    transition: transform 0.2s ease;
}

.neuro__list-title {
    margin-bottom: 20px;
    font-size: clamp(1rem, 0.893rem + 0.54vw, 1.75rem);
}

.neuro__list-item {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.neuro__list-item::before {
    content: counter(neuro-counter);
    counter-increment: neuro-counter;
    position: absolute;
    left: 0;
    top: 0;
    width: 25px;
    height: 25px;
    background-color: var(--color-accent);
    color: var(--color-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    box-shadow: 0 0 30px color-mix(in srgb, var(--color-accent) 80%, transparent);
}

.difference {
    display: flex;
    align-items: center;
    justify-content: center;
}

.difference__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.difference__label {
    text-align: center;
}

.difference__label::after {
    content: "";
    display: block;
    width: 80px;
    height: 4px;
    background: var(--color-accent);
    margin: 1rem auto;
    border-radius: 2px;
    box-shadow: 0 0 10px var(--color-accent);
}

.difference__list--label {
    margin-bottom: 20px;
}

.difference__list {
    counter-reset: II-counter;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.difference__item {
    position: relative;
    line-height: 1.3;
    padding: 20px 3rem;
    transition: transform 0.2s ease;
}

.difference__item::before {
    content: counter(II-counter);
    counter-increment: II-counter;
    position: absolute;
    left: 1rem;
    top: 20px;
    width: 25px;
    height: 25px;
    background-color: var(--color-accent);
    color: var(--color-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    box-shadow: 0 0 30px color-mix(in srgb, var(--color-accent) 80%, transparent);
}

.difference__neuro {
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-top: 20px;
    padding: 20px;
}

.difference__neuro--main-text {
    text-decoration: underline;
    text-decoration-color: var(--color-accent);
    text-decoration-thickness: 3px;
}

.architecture {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.architecture__title {
    text-align: center;
}

.architecture > .title::after {
    content: "";
    display: block;
    width: 80px;
    height: 4px;
    background: var(--color-accent);
    margin: 1rem auto;
    border-radius: 2px;
    box-shadow: 0 0 10px var(--color-accent);
}

.architecture__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    justify-content: center;
    gap: 20px;
}

.architecture__label {
    background-color: var(--color-accent);
    border-radius: var(--border-radius-main);
    padding: 20px 10px;
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    height: 250px;
}

.architecture__info-label {
    color: var(--color-accent);
    margin-bottom: 20px;
}

.architecture__info {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.architecture__info.active {
    padding: 20px;
    max-height: 1000px;
    border-radius: 0 0 var(--border-radius-main) var(--border-radius-main);
}


.architecture__item.active .architecture__label {
    border-radius: var(--border-radius-main) var(--border-radius-main) 0 0;
}

.architecture__info-item {
    margin-left: 20px;
    position: relative;
    margin-bottom: 20px;
}

.architecture__info-item::before {
    content: "";
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--color-main);
    left: -18px;
    top: 8px;
    border-radius: 50%;
}

.usage-item {
    background-color: var(--color-accent);
    border-radius: 12px;
    padding: 5px 10px;
    display: inline-flex;
    margin-bottom: 5px;
}

.history {
    display: flex;
    align-items: center;
}

.swiper {
    padding: 60px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
}

.history__swiper-slide {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    gap: clamp(0.625rem, 0.536rem + 0.45vw, 1.25rem);
    height: auto;
}

.history__swiper-slide > h2 {
    padding-bottom: 10px;
}

.swiper-wrapper {
    align-items: stretch;
}

.history__slide-content {
    display: grid;
    align-items: center;
    grid-template-columns: repeat(2, 1fr);
    justify-content: center;
    gap: clamp(0.625rem, 0.536rem + 0.45vw, 1.25rem);
}

.history__slide-img {
    border-radius: 12px;
    aspect-ratio: 16/9;
    width: 100%;
    height: auto;
    object-fit: cover;
}

.history__slide-title {
    margin-bottom: clamp(0.625rem, 0.536rem + 0.45vw, 1.25rem);
}

.history__slide-block {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: clamp(0.625rem, 0.536rem + 0.45vw, 1.25rem);
    height: 100%;
}

.history__accent {
    transition: transform 0.2s ease;
    padding: 20px;
    border-left: 4px solid var(--color-accent);
    position: relative;
}

.history__accent::after {
    content: "";
    position: absolute;
    top: 0;
    left: -5px;
    bottom: 0;
    width: 20px;
    background: linear-gradient(to right, color-mix(in srgb, var(--color-accent) 50%, transparent), transparent);
    border-radius: var(--border-radius-main) 0 0 var(--border-radius-main);
    opacity: 0.7;
    z-index: 1;
}

.swiper-button-next {
    right: 0;
}

.swiper-button-prev {
    left: 0;
}

.swiper-button-next,
.swiper-button-prev {
    color: var(--color-accent);
    transition: opacity 0.2s ease;
}

.swiper-button-next.swiper-button-disabled,
.swiper-button-prev.swiper-button-disabled {
    opacity: 0;
    color: var(--color-accent);
}

.swiper-pagination-bullet {
    opacity: 0.8;
    background: var(--color-main);
    transition: background 0.5s ease, width 0.2s ease;
}

.swiper-pagination-bullet-active {
    width: 20px;
    border-radius: 12px;
    background: var(--color-accent);
    box-shadow: 0 0 10px color-mix(in srgb, var(--color-accent) 70%, transparent);
}

.next-page {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    min-height: 100vh;
}

.next-page__block--left {
    width: 100%;
    height: 100%;
    position: relative;
}

.next-page__block--right {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    z-index: 2;
    position: relative;
}

.next-page__img {
    position: absolute;
    top: 0;
    right: 0;
    max-width: 100%;
    height: 100%;
    object-fit: contain;
}

.footer {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.list-counter {
    position: relative;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.list-counter::before {
    position: absolute;
    width: 25px;
    height: 25px;
    background-color: var(--color-accent);
    color: var(--color-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    box-shadow: 0 0 30px color-mix(in srgb, var(--color-accent) 80%, transparent);
    box-sizing: border-box;
}

.background__cards {
    border-radius: var(--border-radius-main);
    box-shadow: 0 5px 15px color-mix(in srgb, var(--color-black) 50%, transparent);
    background: linear-gradient(to bottom, color-mix(in srgb, var(--color-accent) 20%, transparent) 30%, color-mix(in srgb, var(--color-accent-second) 10%, transparent));
}

.background__cards--accent {
    border-radius: var(--border-radius-main);
    background: transparent;
    border-left: 4px solid var(--color-accent);
    transition: transform 0.2s ease;
    position: relative;
    box-shadow: 0 5px 15px color-mix(in srgb, var(--color-black) 50%, transparent);
}

.background__cards--accent::after {
    content: "";
    position: absolute;
    top: 0;
    left: -5px;
    bottom: 0;
    width: 20px;
    background: linear-gradient(to right, color-mix(in srgb, var(--color-accent) 50%, transparent), transparent);
    opacity: 0.7;
    z-index: 1;
    border-radius: var(--border-radius-main) 0 0 var(--border-radius-main);
}

.neuro__content,
.history__swiper-slide {
    background: linear-gradient(to top, color-mix(in srgb, var(--color-accent) 20%, transparent) 30%, color-mix(in srgb, var(--color-accent-second) 10%, transparent));
    border-radius: var(--border-radius-main);
}

@media (max-width: 1400px) {
    .architecture__content {
        grid-template-columns: repeat(2, 1fr);
    }

    .architecture__label{
        height: 180px;
    }

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

@media (max-width: 1000px) {
    .about__content {
        grid-template-columns: 1fr;
    }

    .architecture__label{
        height: 170px;
    }

    .about__text {
        width: 100%;
    }

    .about__img {
        position: relative;
        width: 100%;
        height: auto;
    }


    .neuro__example {
        flex-wrap: wrap;
        justify-content: center;
    }

    .about__title {
        width: 100%;
    }

    .swiper {
        padding: 20px;
        width: 100%;
    }

    .history__swiper-slide {
        padding: 10px;
    }



    .background__cards--accent::after,
    .history__accent::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .architecture__content {
        grid-template-columns: 1fr;
    }

    .architecture__label{
        height: 150px;
    }

    .next-page {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .next-page__block--right {
        text-align: center;
        align-items: center;
        order: -1;
    }

    .next-page__img {
        position: relative;
        height: 300px;
    }
}

@media (max-width: 500px) {
    .swiper-button-next,
    .swiper-button-prev {
        display: none;
    }

    .background__cards,
    .background__cards--accent {
        box-shadow: 0 2px 8px color-mix(in srgb, var(--color-black) 30%, transparent);
    }

    .swiper-slide .accent-text{
        font-size: clamp(1.25rem, 1.107rem + .71vw, 2.25rem);
    }

    .swiper-wrapper .background__cards{
        background: transparent;
        box-shadow: none;
        border-radius: 0;
    }

    .swiper {
        padding: 10px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .neuro__definition,
    .difference__item,
    .history__accent,
    .background__cards--accent,
    .architecture__info {
        transition: none;
    }

    .swiper-pagination-bullet,
    .swiper-button-next,
    .swiper-button-prev {
        transition: none;
    }
}


@media (hover: hover) {
    .difference__item:hover,
    .neuro__definition:hover,
    .neuro__list:hover,
    .history__accent:hover {
        transform: scale(1.02);
    }
}

body::before {
    z-index: 0 !important;
}

body {
    position: relative;
    z-index: 0;
}

main, section, header, footer {
    position: relative;
    z-index: 1;
}