.reference-modal {
    position: fixed;
    inset: 0;

    display: none;
    align-items: center;
    justify-content: center;

    padding: 40px;

    background: rgba(0, 0, 0, 0.88);

    backdrop-filter: blur(8px);

    z-index: 99999;
}

.reference-modal.active {
    display: flex;
}

.reference-modal-window {
    position: relative;

    width: min(1500px, 94vw);
    max-height: 90vh;

    padding: 50px;

    overflow-y: auto;

    background:
        linear-gradient(
            120deg,
            #01090E 0%,
            #020D15 55%,
            #072136 100%
        );

    border-left: 1px solid rgba(255,255,255,0.35);
    border-bottom: 1px solid rgba(255,255,255,0.35);

    box-shadow:
        0 0 45px rgba(0,142,240,0.15);
}

.reference-modal-window::before {
    content: "";

    position: absolute;
    top: 0;
    left: 0;
    right: 0;

    height: 1px;

    background:
        linear-gradient(
            90deg,
            rgba(255,255,255,0.25),
            rgba(0,142,240,0.85),
            rgba(255,255,255,0.25)
        );
}

.reference-modal-window h2 {
    margin: 0 70px 40px 0;

    color: var(--lg-silver);

    font-size: 1.6rem;
    letter-spacing: 0.04em;
}

.reference-images {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));

    gap: 35px;
}

.reference-image span {
    display: block;

    margin-bottom: 15px;

    color: var(--lg-blue);

    font-size: 0.85rem;
    font-weight: 600;

    letter-spacing: 0.22em;
}

.reference-image img {
    display: block;

    width: 100%;
    height: auto;

    border: 1px solid rgba(255,255,255,0.14);
}

.reference-close {
    position: absolute;

    top: 18px;
    right: 22px;

    width: 46px;
    height: 46px;

    display: flex;
    align-items: center;
    justify-content: center;

    padding: 0;

    background: rgba(1,9,14,0.75);

    border: 1px solid rgba(96,154,205,0.45);

    color: var(--lg-silver);

    font-size: 2rem;
    line-height: 1;

    cursor: pointer;

    transition:
        color .25s ease,
        border-color .25s ease,
        box-shadow .25s ease;
}

.reference-close:hover {
    color: var(--lg-blue);

    border-color: var(--lg-blue);

    box-shadow:
        0 0 18px rgba(0,142,240,0.18);
}

.reference-close-button {
    display: block;

    margin: 40px auto 0;

    padding: 12px 28px;

    background: transparent;

    border: 1px solid rgba(96,154,205,0.45);

    color: var(--lg-silver);

    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;

    letter-spacing: 0.16em;

    cursor: pointer;
}

.reference-close-button:hover {
    color: var(--lg-blue);
    border-color: var(--lg-blue);
}

@media (max-width: 900px) {

    .reference-modal {
        padding: 18px;
    }

    .reference-modal-window {
        width: 100%;
        padding: 65px 25px 30px;
    }

    .reference-images {
        grid-template-columns: 1fr;
    }

}