/* Scrollable reference portals, adapted from the CITApp Tippy presentation. */
.tippy-box[data-theme~="reference-preview"] {
    background: var(--pst-color-background, #fff);
    color: var(--pst-color-text-base, #222);
    border: 1px solid var(--pst-color-border, #bbb);
    border-radius: 0.5rem;
    box-shadow: 0 0.5rem 2rem rgb(0 0 0 / 24%);
    max-width: min(550px, calc(100vw - 2rem));
    font-family: var(--pst-font-family-base, sans-serif);
    font-size: 0.9rem;
    line-height: 1.5;
}

.tippy-box[data-theme~="reference-preview"] > .tippy-content {
    padding: 0;
}

.tippy-box[data-theme~="reference-preview"] > .tippy-arrow {
    color: var(--pst-color-background, #fff);
}

.reference-preview {
    display: flex;
    flex-direction: column;
    max-height: min(var(--reference-preview-height, 450px), calc(100dvh - 4rem));
    max-width: calc(100vw - 2rem);
    overflow: hidden;
}

.reference-preview-header,
.reference-preview-footer {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.9rem;
    flex-shrink: 0;
}

.reference-preview-header {
    border-bottom: 1px solid var(--pst-color-border, #bbb);
}

.reference-preview-title {
    flex: 1;
    overflow-wrap: anywhere;
}

.reference-preview-close {
    border: 0;
    border-radius: 0.25rem;
    background: transparent;
    color: inherit;
    font-size: 1.5rem;
    line-height: 1;
    padding: 0.25rem 0.4rem;
    cursor: pointer;
}

.reference-preview-footer {
    border-top: 1px solid var(--pst-color-border, #bbb);
    flex-wrap: wrap;
}

.reference-preview-source {
    margin-inline-start: auto;
    color: var(--pst-color-text-muted);
    font-size: 0.75rem;
}

.reference-preview-scroll {
    min-height: 0;
    padding: 0.9rem;
    overflow: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    overflow-wrap: anywhere;
}

.reference-preview a {
    color: var(--pst-color-link, #0069a8);
    text-decoration: underline;
}

.reference-preview :focus-visible {
    outline: 2px solid var(--pst-color-primary, #0069a8);
    outline-offset: -2px;
}

.reference-preview-scroll img {
    max-width: 100%;
    height: auto;
}

/* Page grids use viewport breakpoints; the much narrower portal needs one column. */
.reference-preview-scroll .sd-row > .sd-col {
    flex: 0 0 100%;
    width: 100%;
}

.reference-preview-scroll :is(h1, h2, h3, h4, h5, h6) {
    font-size: 1.05rem;
    margin: 0.8rem 0 0.5rem;
}

.reference-preview-scroll pre {
    padding: 0.65rem;
    max-height: none;
    overflow: auto;
    font-size: 0.8rem;
    white-space: pre;
    overflow-wrap: normal;
}

/* Sphinx otherwise keeps long inline source paths on one unbroken line. */
.reference-preview-scroll code.literal .pre {
    white-space: normal;
    overflow-wrap: anywhere;
}

.reference-preview-scroll table {
    font-size: 0.85rem;
}

@media (prefers-reduced-motion: reduce) {
    .reference-preview-portal,
    .reference-preview-portal * {
        transition-duration: 0s !important;
        animation: none !important;
    }
}

@media print {
    .reference-preview-portal {
        display: none !important;
    }
}