/* cases-section — Figma 4:7786 (1920×1144)
   Анимация: component set 21:3683, состояния State=default → step-1 … step-4.
   Колода карточек: активная — полноразмерная на переднем плане,
   предыдущие остаются видимыми позади, уменьшаются и поднимаются. */

.cases {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 2.7429rem;
    align-items: center;
    padding: 0 5.1429rem 11.1429rem;
    background: var(--c-page);
}

.cases__deck {
    position: relative;
    width: 109.7143rem;
    height: 52.8858rem;
}

.cases__card {
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 1.2857rem;
    overflow: hidden;
    background: #d9d9d9;
    transition:
        width 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        height 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        opacity 0.5s ease;
}

/* --i: 0 — активная карточка спереди, дальше идут предыдущие карточки стопки */
.cases__card {
    --i: 0;
    width: calc(109.7143rem - var(--i) * 7.3714rem);
    height: calc(42.9429rem - var(--i) * 2.8572rem);
    transform: translate(calc(var(--i) * 3.6857rem), calc(7.7144rem - var(--i) * 1.2857rem));
    z-index: calc(20 - var(--i));
    pointer-events: none;
}

.cases__card.is-active {
    pointer-events: auto;
}

.cases__card.is-entering {
    transform: translate(0, 100vh);
}

.cases__card > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cases__card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.cases__card:not(.is-active)::after {
    opacity: 1;
}

.cases__caption {
    position: absolute;
    left: 1.7143rem;
    bottom: 1.7143rem;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    width: 33.1714rem;
    padding: 1.7143rem;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(1.1143rem);
    -webkit-backdrop-filter: blur(1.1143rem);
    color: var(--c-white);
    line-height: 0;
    opacity: 0;
    transition: opacity 0.5s ease 0.2s;
}

.cases__card.is-active .cases__caption {
    opacity: 1;
}

.cases__caption-text {
    display: flex;
    flex-direction: column;
    gap: 2.1429rem;
    align-items: flex-start;
    word-break: break-word;
}

.cases__caption-kind {
    width: 21.2571rem;
    font-family: var(--font-ui);
    font-weight: 500;
    font-size: 1.3714rem;
    line-height: 1.15;
    opacity: 0.8;
}

.cases__caption-title {
    width: 23.486rem;
    font-family: var(--font-display);
    font-weight: 400;
    font-size: 2.6571rem;
    line-height: 0.9;
    letter-spacing: -0.03em;
}

.cases__caption-icon {
    flex-shrink: 0;
    width: 1.3714rem;
    height: 1.3714rem;
    max-width: none;
}

.cases__button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 34.8rem;
    height: 4.7143rem;
    padding: 1.7143rem;
    border-radius: var(--radius-md);
    background: var(--c-black);
    backdrop-filter: blur(1.1143rem);
    -webkit-backdrop-filter: blur(1.1143rem);
    opacity: 0;
    pointer-events: none;
    transition:
        opacity 0.3s ease,
        transform 0.3s ease;
}

.cases.is-desktop-cta-visible .cases__button,
.cases.is-mobile-cta-visible .cases__button {
    opacity: 1;
    pointer-events: auto;
}

.cases__button:hover {
    transform: translateY(-0.125rem);
}

.cases__button-text {
    font-family: var(--font-ui);
    font-weight: 500;
    font-size: 1.6286rem;
    line-height: 1.15;
    color: var(--c-white);
}

.cases__button-icon {
    width: 1.3714rem;
    height: 1.3714rem;
    max-width: none;
}

@media (max-width: 1200px) {
    .cases {
        padding: 0 16px 64px;
    }

    .cases__deck {
        width: 100%;
        height: 320px;
    }

    .cases__card {
        width: 100%;
        height: 280px;
        transform: translate(0, calc(var(--i) * 8px));
    }

    .cases__caption {
        left: 12px;
        bottom: 12px;
        width: calc(100% - 24px);
        padding: 16px;
    }

    .cases__caption-kind,
    .cases__caption-title {
        width: auto;
    }

    .cases__caption-kind {
        font-size: 13px;
    }

    .cases__caption-title {
        font-size: 24px;
    }

    .cases__button {
        width: 100%;
        max-width: 320px;
        height: 56px;
        padding: 16px 20px;
    }

    .cases__button-text {
        font-size: 18px;
    }
}

@media (max-width: 767px) {
    .pin[data-scene="cases"] {
        height: calc(5 * 100vh);
    }

    .pin[data-scene="cases"] .pin__inner {
        position: sticky;
        top: 68px;
        align-items: flex-start;
        height: calc(100vh - 68px);
        overflow: hidden;
    }

    .cases {
        align-items: flex-start;
        min-height: 0;
        height: calc((100vw - 40px) * 0.8571429 + 99px);
        padding: 0 20px;
        overflow: hidden;
    }

    .cases__deck {
        width: 100%;
        height: 100%;
    }

    .cases__card {
        display: none;
        top: 0;
        left: 0;
        width: 100%;
        height: auto;
        aspect-ratio: 7 / 6;
        border-radius: 8px;
        transform: none;
        transition: none;
    }

    .cases__card.is-mobile-visible,
    .cases__card:nth-child(1) {
        display: block;
    }

    .cases__card:nth-child(1) {
        z-index: 10;
    }

    .cases.is-mobile-step-1 .cases__card:nth-child(1),
    .cases.is-mobile-step-2 .cases__card:nth-child(2),
    .cases.is-mobile-step-3 .cases__card:nth-child(3) {
        left: 50%;
        width: 89.6429%;
        aspect-ratio: 251 / 217;
        transform: translateX(-50%);
    }

    .cases.is-mobile-step-1 .cases__card:nth-child(1) {
        z-index: 10;
    }

    .cases.is-mobile-step-1 .cases__card:nth-child(2) {
        width: 100%;
        transform: none;
        z-index: 11;
    }

    .cases.is-mobile-step-2 .cases__card:nth-child(1) {
        left: 50%;
        width: 80.3572%;
        aspect-ratio: 225 / 196;
        transform: translateX(-50%);
        z-index: 10;
    }

    .cases.is-mobile-step-2 .cases__card:nth-child(2) {
        transform: translate(-50%, 5px);
        z-index: 11;
    }

    .cases.is-mobile-step-2 .cases__card:nth-child(3) {
        left: 0;
        width: 100%;
        transform: translateY(20px);
        z-index: 12;
    }

    .cases.is-mobile-step-3 .cases__card:nth-child(1) {
        left: 50%;
        width: 72.1429%;
        aspect-ratio: 202 / 177;
        transform: translateX(-50%);
        z-index: 10;
    }

    .cases.is-mobile-step-3 .cases__card:nth-child(2) {
        left: 50%;
        width: 80.3572%;
        aspect-ratio: 225 / 196;
        transform: translate(-50%, 8px);
        z-index: 11;
    }

    .cases.is-mobile-step-3 .cases__card:nth-child(3) {
        transform: translate(-50%, 16px);
        z-index: 12;
    }

    .cases.is-mobile-step-3 .cases__card:nth-child(4) {
        left: 0;
        width: 100%;
        transform: translateY(35px);
        z-index: 13;
    }

    .cases.is-mobile-step-4 .cases__card:nth-child(1) {
        left: 50%;
        width: 64.6429%;
        aspect-ratio: 181 / 160;
        transform: translateX(-50%);
        z-index: 10;
    }

    .cases.is-mobile-step-4 .cases__card:nth-child(2) {
        left: 50%;
        width: 72.1429%;
        aspect-ratio: 202 / 177;
        transform: translate(-50%, 8px);
        z-index: 11;
    }

    .cases.is-mobile-step-4 .cases__card:nth-child(3) {
        left: 50%;
        width: 80.3572%;
        aspect-ratio: 225 / 196;
        transform: translate(-50%, 18px);
        z-index: 12;
    }

    .cases.is-mobile-step-4 .cases__card:nth-child(4) {
        left: 50%;
        width: 89.6429%;
        aspect-ratio: 251 / 217;
        transform: translate(-50%, 30px);
        z-index: 13;
    }

    .cases__caption {
        left: 10px;
        right: 10px;
        bottom: 10px;
        width: auto;
        height: 73px;
        min-height: 73px;
        padding: 15px;
        border-radius: 8px;
        transition: none;
    }

    .cases__card.is-label-hidden .cases__caption {
        opacity: 0;
        pointer-events: none;
    }

    .cases.is-mobile-step-4 .cases__caption {
        opacity: 0;
        pointer-events: none;
    }

    .cases__caption-text {
        gap: 8px;
    }

    .cases__caption-kind {
        width: 100%;
        font-family: var(--font-ui);
        font-weight: 400;
        font-size: 14px;
        line-height: 1.15;
    }

    .cases__caption-title {
        width: 100%;
        font-size: 21px;
        line-height: 0.9;
        letter-spacing: -0.03em;
    }

    .cases__caption-icon,
    .cases__button-icon {
        width: 14px;
        height: 14px;
    }

    .cases__button {
        position: absolute;
        right: 20px;
        bottom: 20px;
        left: 20px;
        width: auto;
        max-width: none;
        height: 45px;
        padding: 20px;
        border-radius: 8px;
        opacity: 0;
        pointer-events: none;
        transition: none;
    }

    .cases.is-mobile-cta-visible .cases__button {
        opacity: 1;
        pointer-events: auto;
    }

    .cases__button-text {
        font-size: 15px;
    }
}