html {
    scroll-behavior: smooth;
}

body.about-body,
body.about-body * {
    box-sizing: border-box;
}

body.about-body {
    min-height: 100vh;
    margin: 0;
    color: var(--color-text, #14284b);
    background: var(--color-bg, #eef4ff);
    background-image:
            radial-gradient(circle at 8% -12%, color-mix(in srgb, var(--color-primary, #2f7cf6) 14%, transparent), transparent 34rem),
            radial-gradient(circle at 102% 4%, color-mix(in srgb, var(--color-accent, #8fb7ff) 20%, transparent), transparent 30rem);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.about-page {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 56px;
}

.about-hero,
.about-accordion,
.about-member {
    border: 1px solid var(--color-border, #d7e4fb);
    box-shadow: var(--shadow-card, 0 18px 45px rgba(47, 124, 246, 0.12));
}

.about-hero {
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
    gap: 28px;
    align-items: center;
    min-height: 360px;
    padding: 48px;
    border-radius: 32px;
    color: var(--color-primary-contrast, #ffffff);
    background: linear-gradient(
            135deg,
            var(--color-primary, #2f7cf6) 0%,
            var(--color-primary-active, #1657c0) 56%,
            var(--color-accent, #8fb7ff) 100%
    );
}

.about-hero::before,
.about-hero::after {
    position: absolute;
    content: "";
    pointer-events: none;
    border-radius: 44px;
    background: rgba(255, 255, 255, 0.14);
    background: color-mix(in srgb, var(--color-primary-contrast, #ffffff) 15%, transparent);
    transform: rotate(45deg);
}

.about-hero::before {
    width: 260px;
    height: 260px;
    right: -84px;
    top: -96px;
}

.about-hero::after {
    width: 360px;
    height: 360px;
    right: 11%;
    bottom: -230px;
    opacity: 0.72;
}

.about-hero__content,
.about-hero__visual {
    position: relative;
    z-index: 1;
}

.about-kicker {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    min-height: 28px;
    padding: 6px 12px;
    border-radius: 999px;
    color: var(--color-primary, #2f7cf6);
    background: var(--color-surface, #ffffff);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.055em;
    line-height: 1;
    text-transform: uppercase;
}

.about-hero .about-kicker {
    color: var(--color-primary, #2f7cf6);
    background: var(--color-primary-contrast, #ffffff);
}

.about-hero h1 {
    max-width: 720px;
    margin: 18px 0 16px;
    font-size: clamp(44px, 7vw, 78px);
    line-height: 0.96;
    letter-spacing: -0.065em;
}

.about-hero p {
    max-width: 640px;
    margin: 0;
    color: var(--color-primary-contrast, #ffffff);
    opacity: 0.9;
    font-size: clamp(18px, 2.1vw, 23px);
    line-height: 1.55;
}

.about-hero__visual {
    justify-self: end;
    width: min(100%, 310px);
    min-height: 286px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 28px;
    border-radius: 28px;
    text-align: center;
    background: rgba(255, 255, 255, 0.14);
    background: color-mix(in srgb, var(--color-primary-contrast, #ffffff) 14%, transparent);
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-primary-contrast, #ffffff) 24%, transparent);
}

.about-logo-mark {
    width: 108px;
    height: 108px;
    display: grid;
    place-items: center;
    border-radius: 30px;
    background: var(--color-surface, #ffffff);
    box-shadow: 0 18px 38px rgba(16, 24, 40, 0.2);
}

.about-logo-mark img {
    display: block;
    width: 78px !important;
    height: 78px !important;
    max-width: 78px !important;
    max-height: 78px !important;
    object-fit: contain;
}

.about-hero__caption {
    max-width: 220px;
    color: var(--color-primary-contrast, #ffffff);
    font-size: 22px;
    font-weight: 850;
    line-height: 1.18;
    letter-spacing: -0.03em;
}

.about-section {
    margin-top: 28px;
}

.about-section-head {
    max-width: 780px;
    margin-bottom: 16px;
}

.about-section-head--center {
    margin-right: auto;
    margin-left: auto;
    text-align: center;
}

.about-section-head h2 {
    margin: 0 0 10px;
    color: var(--color-text, #14284b);
    font-size: clamp(34px, 4.4vw, 50px);
    line-height: 1.04;
    letter-spacing: -0.045em;
}

.about-section-head--simple {
    margin-bottom: 18px;
}

.about-section-head--simple h2 {
    margin-bottom: 0;
    font-size: clamp(38px, 4.8vw, 56px);
}

.about-section-head p,
.about-accordion__panel p,
.about-member p {
    margin: 0;
    color: var(--color-text-soft, #6980a8);
    line-height: 1.65;
}

.about-section--features {
    margin-top: 34px;
}

.about-accordion {
    overflow: hidden;
    border-radius: 26px;
    background: var(--color-surface, #ffffff);
}

.about-accordion__item + .about-accordion__item {
    border-top: 1px solid var(--color-border, #d7e4fb);
}

.about-accordion__button {
    width: 100%;
    min-height: 66px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 28px;
    border: 0;
    color: var(--color-text, #14284b);
    background: var(--color-surface, #ffffff);
    cursor: pointer;
    font: inherit;
    font-size: 18px;
    font-weight: 800;
    line-height: 1.25;
    text-align: left;
    transition: color 0.22s ease, background 0.22s ease;
}

.about-accordion__button:hover,
.about-accordion__item.is-open .about-accordion__button {
    background: var(--color-surface-soft, #f5f9ff);
}

.about-accordion__item.is-open .about-accordion__button {
    color: var(--color-primary, #2f7cf6);
}

.about-accordion__button:focus-visible {
    outline: 0;
    box-shadow: var(--shadow-focus, 0 0 0 4px rgba(47, 124, 246, 0.12));
}

.about-accordion__arrow {
    width: 12px;
    height: 12px;
    flex: 0 0 auto;
    border-right: 2px solid var(--color-text-soft, #6980a8);
    border-bottom: 2px solid var(--color-text-soft, #6980a8);
    transform: rotate(45deg);
    transition: transform 0.28s ease, border-color 0.22s ease;
}

.about-accordion__item.is-open .about-accordion__arrow {
    border-color: var(--color-primary, #2f7cf6);
    transform: rotate(225deg);
}

.about-accordion__panel {
    height: 0;
    overflow: hidden;
    background: var(--color-surface, #ffffff);
    transition: height 0.36s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: height;
}

.about-accordion__item.is-open .about-accordion__panel {
    height: auto;
}

.about-accordion__panel-inner {
    padding: 0 28px 22px;
    opacity: 0;
    transform: translateY(-5px);
    transition: opacity 0.24s ease, transform 0.24s ease;
}

.about-accordion__item.is-open .about-accordion__panel-inner {
    opacity: 1;
    transform: translateY(0);
}

.about-team {
    margin-top: 48px;
}

.about-section-head--team {
    margin-bottom: 22px;
}

.about-team__list {
    width: min(1040px, 100%);
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
    margin: 0 auto;
}

.about-member {
    min-height: 360px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 42px 36px;
    border-radius: 18px;
    background: var(--color-surface, #ffffff);
    text-align: center;
}

.about-member__photo {
    width: 156px;
    height: 156px;
    overflow: hidden;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 50%;
    color: var(--color-primary-contrast, #ffffff);
    background: linear-gradient(135deg, var(--color-primary, #2f7cf6), var(--color-accent, #8fb7ff));
    box-shadow: 0 16px 34px color-mix(in srgb, var(--color-primary, #2f7cf6) 20%, transparent);
}

.about-member__photo img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-member__photo span {
    font-size: 38px;
    font-weight: 850;
    letter-spacing: -0.06em;
}

.about-member__info {
    width: min(620px, 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.about-member h3 {
    margin: 0 0 12px;
    color: var(--color-text, #14284b);
    font-size: clamp(30px, 3.2vw, 40px);
    font-weight: 650;
    line-height: 1.12;
    letter-spacing: -0.035em;
}

.about-member strong {
    display: block;
    margin-bottom: 16px;
    color: var(--color-primary, #2f7cf6);
    font-size: 16px;
    font-weight: 760;
    letter-spacing: 0.035em;
    text-transform: uppercase;
}

.about-member p {
    max-width: 560px;
    color: var(--color-text, #14284b);
    font-size: 18px;
    line-height: 1.65;
}

.about-vk {
    min-width: 96px;
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
    padding: 0 24px;
    border-radius: 12px;
    color: var(--color-primary-contrast, #ffffff);
    background: var(--color-primary, #2f7cf6);
    box-shadow: 0 10px 18px color-mix(in srgb, var(--color-primary, #2f7cf6) 22%, transparent);
    font-size: 18px;
    font-weight: 800;
    line-height: 1;
    text-decoration: none;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.about-vk:hover {
    background: var(--color-primary-hover, #1f69df);
    transform: translateY(-1px);
    box-shadow: 0 14px 26px color-mix(in srgb, var(--color-primary, #2f7cf6) 28%, transparent);
}

.about-final {
    display: flex;
    justify-content: center;
    margin-top: 36px;
}

.about-project-link {
    min-height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 28px;
    border-radius: 16px;
    color: var(--color-primary-contrast, #ffffff);
    background: var(--color-primary, #2f7cf6);
    box-shadow: 0 14px 28px color-mix(in srgb, var(--color-primary, #2f7cf6) 22%, transparent);
    font-size: 17px;
    font-weight: 850;
    line-height: 1;
    text-decoration: none;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.about-project-link:hover {
    background: var(--color-primary-hover, #1f69df);
    transform: translateY(-1px);
    box-shadow: 0 18px 34px color-mix(in srgb, var(--color-primary, #2f7cf6) 28%, transparent);
}

html[data-theme="dark-blue"] body.about-body {
    background-image:
            radial-gradient(circle at 8% -12%, color-mix(in srgb, var(--color-primary, #5aa2ff) 14%, transparent), transparent 34rem),
            radial-gradient(circle at 102% 4%, color-mix(in srgb, var(--color-accent, #7fb3ff) 14%, transparent), transparent 30rem);
}

@media (max-width: 980px) {
    .about-hero {
        grid-template-columns: 1fr;
        padding: 34px;
    }

    .about-hero__visual {
        justify-self: stretch;
        width: 100%;
        min-height: 230px;
    }

    .about-member {
        min-height: 330px;
        padding: 36px 28px;
    }

    .about-member__photo {
        width: 136px;
        height: 136px;
    }
}

@media (max-width: 640px) {
    .about-page {
        width: min(100% - 18px, 1120px);
        padding: 12px 0 34px;
    }

    .about-hero,
    .about-accordion,
    .about-member {
        border-radius: 20px;
    }

    .about-hero {
        padding: 22px;
    }

    .about-member {
        min-height: 300px;
        padding: 28px 20px;
    }

    .about-hero h1 {
        font-size: 42px;
    }

    .about-hero__visual {
        min-height: 210px;
    }

    .about-section-head h2,
    .about-section-head--simple h2 {
        font-size: 34px;
    }

    .about-accordion__button {
        min-height: 62px;
        padding: 0 18px;
        font-size: 16px;
    }

    .about-accordion__panel-inner {
        padding: 0 18px 18px;
    }

    .about-member__photo {
        width: 118px;
        height: 118px;
    }

    .about-member h3 {
        font-size: 28px;
    }

    .about-member p {
        font-size: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .about-accordion__panel,
    .about-accordion__panel-inner,
    .about-accordion__arrow,
    .about-vk,
    .about-project-link {
        transition: none;
    }
}