/* =========================================================
   Reference Document + Lightbox for Reference Documents
========================================================= */

:root {
    --reference-lightbox-opacity: 1.00;
    --reference-lightbox-max-height: 72vh;
    --reference-lightbox-width: 700px;
    --reference-lightbox-top-clearance: 2.75rem;
}

.reference-lightbox {
    position: fixed;
    top: 8vh;
    left: var(--reference-lightbox-left, 50%);

    width: var(
        --reference-lightbox-calculated-width,
        min(700px, calc(100vw - 2rem))
    );

    max-height: var(--reference-lightbox-max-height);

    padding-top: 0.5rem;
    padding-bottom: 2.25rem;
    padding-left: 2.25rem;
    padding-right: 1.5rem;

    border: 1px solid var(--rule);

    background: rgba(
        248,
        244,
        232,
        var(--reference-lightbox-opacity)
    );

    box-shadow: 0 12px 40px rgba(
        0,
        0,
        0,
        0.45
    );

    overflow: hidden;
    box-sizing: border-box;

    margin: 0;
}

.reference-lightbox::backdrop {
    background: rgba(0, 0, 0, 0.35);
}

.reference-lightbox-content {
    margin-top: var(--reference-lightbox-top-clearance);

    max-height: calc(
        var(--reference-lightbox-max-height) - var(--reference-lightbox-top-clearance) - 2.5rem
    );

    overflow-y: auto;
    padding-right: 1rem;
    box-sizing: border-box;

    text-align: left;
}

.reference-lightbox-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;

    width: 2rem;
    height: 2rem;

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

    padding: 0 0 0 1px;

    border: 2px solid #d89b00;
    border-radius: 50%;

    background: rgba(255, 255, 255, 0.95);
    color: #000;

    font-size: 1.25rem;
    font-weight: bold;
    line-height: 1;

    cursor: pointer;

    appearance: none;
    -webkit-appearance: none;
}

.reference-lightbox-close:hover {
    background: #fff;
}

.reference-lightbox-close:focus {
    outline: none;
}

.reference-document {
    max-width: 60rem;
}

.reference-title {
    margin-bottom: 1rem;
    padding-right: 2.5rem;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 19px;
    font-weight: normal;
}

.reference-content p {
    margin: 0;
    line-height: 1.6;
    padding-bottom: 1rem;
}

/* Reference source, author, work, and location */

.reference-source,
.reference-author {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #666;
}

.reference-work {
    margin-top: 0.25rem;
    font-style: italic;
    font-size: 1.25rem;
}

.reference-location {
    margin-top: 1rem;
    margin-bottom: 0.25rem;
    font-size: 1.15rem;
}