.ibs-side-tab {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 160;
}

.ibs-side-tab__trigger {
    position: relative;
    left: -9px;
    width: 46px;
    height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: left 0.2s ease, transform 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.ibs-side-tab__trigger:hover,
.ibs-side-tab__trigger:focus {
    left: -3px;
    transform: scale(1.02);
    outline: none;
}

.ibs-side-tab__logo {
    display: inline-flex;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 18px rgba(10, 20, 40, 0.14);
    background: transparent;
}

.ibs-side-tab__logo svg,
.ibs-side-tab__logo img {
    display: block;
    width: 40px;
    height: 40px;
}

.ibs-side-tab__overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, visibility 0.22s ease;
}

.ibs-side-tab__overlay:target {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.ibs-side-tab__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10, 20, 40, 0.58);
    backdrop-filter: blur(4px);
}

.ibs-side-tab__modal {
    position: relative;
    z-index: 2;
    width: min(860px, calc(100vw - 36px));
    max-height: calc(100vh - 36px);
    overflow: auto;
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 24px 60px rgba(10, 20, 40, 0.22);
    transform: translateY(14px) scale(0.99);
    opacity: 0;
    transition: transform 0.22s ease, opacity 0.22s ease;
}

.ibs-side-tab__overlay:target .ibs-side-tab__modal {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.ibs-side-tab__body {
    padding: 28px 28px 30px;
}

.ibs-side-tab__close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: rgba(26, 40, 77, 0.08);
    color: #1a284d;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    line-height: 1;
    text-decoration: none;
    transition: background 0.2s ease, transform 0.2s ease;
    z-index: 3;
}

.ibs-side-tab__close:hover,
.ibs-side-tab__close:focus {
    background: rgba(26, 40, 77, 0.14);
    transform: scale(1.03);
    outline: none;
}

.ibs-side-tab__title {
    margin: 0 54px 18px 0;
    color: var(--color-heading, #1a284d);
    font-size: clamp(28px, 3.2vw, 48px);
    line-height: 1.04;
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* Галерея */
.ibs-side-tab__gallery {
    display: grid;
    gap: 14px;
    margin: 0 0 20px;
}

.ibs-side-tab__gallery--count-1 {
    grid-template-columns: 1fr;
}

.ibs-side-tab__gallery--count-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ibs-side-tab__gallery--count-3,
.ibs-side-tab__gallery--count-4 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* Убираем огромную "главную" карточку */
.ibs-side-tab__gallery-item,
.ibs-side-tab__gallery-item.is-featured {
    position: relative;
    display: block;
    grid-column: auto;
    border-radius: 16px;
    overflow: hidden;
    background: #f4f7fb;
    box-shadow: 0 8px 20px rgba(10, 20, 40, 0.08);
    aspect-ratio: 4 / 3;
    text-decoration: none;
}

.ibs-side-tab__gallery-item img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.22s ease;
}

.ibs-side-tab__gallery-item:hover img,
.ibs-side-tab__gallery-item:focus img {
    transform: scale(1.02);
}

.ibs-side-tab__zoom-hint {
    position: absolute;
    right: 10px;
    bottom: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 30px;
    padding: 0 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.94);
    color: #1a284d;
    font-size: 12px;
    font-weight: 600;
    box-shadow: 0 6px 16px rgba(10, 20, 40, 0.12);
}

.ibs-side-tab__text {
    color: var(--color-text, #333333);
    font-size: clamp(16px, 1.45vw, 20px);
    line-height: 1.55;
}

.ibs-side-tab__text p {
    margin: 0 0 12px;
}

.ibs-side-tab__text p:last-child {
    margin-bottom: 0;
}

.ibs-side-tab__text a {
    color: var(--color-primary, #3a7dca);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.ibs-side-tab__actions {
    margin-top: 18px;
}

.ibs-side-tab__action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 16px;
    border-radius: 12px;
    background: var(--color-primary, #3a7dca);
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 8px 20px rgba(58, 125, 202, 0.22);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.ibs-side-tab__action:hover,
.ibs-side-tab__action:focus {
    background: var(--color-primary-dark, #2c609d);
    box-shadow: 0 10px 24px rgba(44, 96, 157, 0.26);
    transform: translateY(-1px);
    outline: none;
}

/* Lightbox */
.ibs-side-tab__lightbox {
    position: fixed;
    inset: 0;
    z-index: 10010;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, visibility 0.22s ease;
}

.ibs-side-tab__lightbox:target {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.ibs-side-tab__lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 14, 28, 0.82);
    backdrop-filter: blur(4px);
}

.ibs-side-tab__lightbox-dialog {
    position: relative;
    z-index: 2;
    max-width: min(1200px, calc(100vw - 36px));
    max-height: calc(100vh - 36px);
    border-radius: 18px;
    overflow: hidden;
    background: #ffffff;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.32);
}

.ibs-side-tab__lightbox-dialog img {
    display: block;
    max-width: min(1200px, calc(100vw - 36px));
    max-height: calc(100vh - 36px);
    width: auto;
    height: auto;
    object-fit: contain;
    background: #ffffff;
}

.ibs-side-tab__lightbox-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(26, 40, 77, 0.12);
    color: #1a284d;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    line-height: 1;
    text-decoration: none;
    z-index: 3;
    transition: background 0.2s ease, transform 0.2s ease;
}

.ibs-side-tab__lightbox-close:hover,
.ibs-side-tab__lightbox-close:focus {
    background: rgba(26, 40, 77, 0.18);
    transform: scale(1.03);
    outline: none;
}

/* Планшеты */
@media (max-width: 1024px) {
    .ibs-side-tab__modal {
        width: min(820px, calc(100vw - 28px));
        max-height: calc(100vh - 28px);
    }

    .ibs-side-tab__body {
        padding: 24px 24px 26px;
    }

    .ibs-side-tab__title {
        font-size: clamp(26px, 4vw, 40px);
        margin-bottom: 16px;
    }

    .ibs-side-tab__gallery--count-3,
    .ibs-side-tab__gallery--count-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ibs-side-tab__text {
        font-size: 17px;
    }
}

/* Мобилка */
@media (max-width: 767px) {
    .ibs-side-tab {
        top: auto;
        bottom: 90px;
        transform: none;
        z-index: 170;
    }

    .ibs-side-tab__trigger {
        left: -7px;
        width: 42px;
        height: 42px;
    }

    .ibs-side-tab__trigger:hover,
    .ibs-side-tab__trigger:focus {
        left: -2px;
        transform: scale(1.01);
    }

    .ibs-side-tab__logo,
    .ibs-side-tab__logo svg,
    .ibs-side-tab__logo img {
        width: 36px;
        height: 36px;
        border-radius: 8px;
    }

    .ibs-side-tab__overlay,
    .ibs-side-tab__lightbox {
        padding: 8px;
        align-items: flex-end;
    }

    .ibs-side-tab__modal {
        width: 100%;
        max-height: calc(100vh - 8px);
        border-radius: 18px 18px 0 0;
    }

    .ibs-side-tab__body {
        padding: 16px 14px 18px;
    }

    .ibs-side-tab__close {
        top: 8px;
        right: 8px;
        width: 40px;
        height: 40px;
        font-size: 26px;
    }

    .ibs-side-tab__title {
        margin: 0 44px 12px 0;
        font-size: 24px;
        line-height: 1.08;
        letter-spacing: 0;
    }

    .ibs-side-tab__gallery,
    .ibs-side-tab__gallery--count-2,
    .ibs-side-tab__gallery--count-3,
    .ibs-side-tab__gallery--count-4 {
        grid-template-columns: 1fr;
        gap: 10px;
        margin-bottom: 16px;
    }

    .ibs-side-tab__gallery-item,
    .ibs-side-tab__gallery-item.is-featured {
        aspect-ratio: 16 / 10;
        border-radius: 14px;
    }

    .ibs-side-tab__zoom-hint {
        right: 8px;
        bottom: 8px;
        min-height: 26px;
        padding: 0 9px;
        font-size: 11px;
    }

    .ibs-side-tab__text {
        font-size: 15px;
        line-height: 1.48;
    }

    .ibs-side-tab__text p {
        margin-bottom: 10px;
    }

    .ibs-side-tab__actions {
        margin-top: 16px;
    }

    .ibs-side-tab__action {
        width: 100%;
        min-height: 42px;
        padding: 0 12px;
        font-size: 14px;
    }

    .ibs-side-tab__lightbox-dialog,
    .ibs-side-tab__lightbox-dialog img {
        max-width: calc(100vw - 16px);
        max-height: calc(100vh - 16px);
        border-radius: 14px;
    }

    .ibs-side-tab__lightbox-close {
        top: 8px;
        right: 8px;
        width: 38px;
        height: 38px;
        font-size: 24px;
    }
}

/* Очень маленькие экраны */
@media (max-width: 420px) {
    .ibs-side-tab {
        bottom: 84px;
    }

    .ibs-side-tab__title {
        font-size: 22px;
    }

    .ibs-side-tab__text {
        font-size: 14px;
    }

    .ibs-side-tab__body {
        padding: 14px 12px 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ibs-side-tab__trigger,
    .ibs-side-tab__overlay,
    .ibs-side-tab__modal,
    .ibs-side-tab__gallery-item img,
    .ibs-side-tab__lightbox,
    .ibs-side-tab__lightbox-close,
    .ibs-side-tab__close,
    .ibs-side-tab__action {
        transition: none !important;
    }
}