/* ── Publication Item (detail) Page ──────────────────────────────────────────
   Standalone page generated per publication (see build.py render_publication_pages).
   Mirrors the news-item page conventions: subpage header + breadcrumb, a single
   centred reading column, footer. Anchored to the shared tokens in general.css. */

/* Same content width as the other subpages (news-item, members): 80rem. */
.pub-item-main {
    width: min(100%, 80rem);
    margin-inline: auto;
    padding: 3rem var(--gutter-x) 8rem;
}

/* ── Header block ─────────────────────────────────────────────────────────── */

.pub-item-tags {
    list-style: none;
    margin: 0 0 1.25rem;
    padding: 0;

    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pub-tag-chip {
    font-size: var(--fs-caption);
    font-weight: 600;
    letter-spacing: 0.01em;
    line-height: 1.4;
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    color: var(--main-color-2);
    background: color-mix(in srgb, var(--main-color-2) 12%, transparent);
}

.pub-item-title {
    font-size: clamp(1.625rem, 3.2vw, 2.125rem);
    font-weight: var(--fw-h1);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--main-color);
    margin: 0 0 1.25rem;
}

.pub-item-authors {
    font-size: var(--fs-body-l);
    line-height: 1.5;
    color: var(--main-color);
    margin: 0 0 0.5rem;
}

/* Animated underline on author links — matches the about-section link recipe. */
.pub-author-link {
    color: color-mix(in srgb, var(--main-color) 55%, var(--main-color-2) 45%);
    font-weight: 600;
    text-decoration: none;
    background-image: linear-gradient(currentColor, currentColor);
    background-position: 0 100%;
    background-repeat: no-repeat;
    background-size: 0% 1px;
    padding-bottom: 0.06em;
    transition:
        background-size 280ms cubic-bezier(0.16, 1, 0.3, 1),
        color 200ms ease-out;

    &:hover, &:focus-visible {
        background-size: 100% 1px;
        color: var(--main-color-2);
    }

    &:focus-visible {
        outline: 2px solid currentColor;
        outline-offset: 3px;
        border-radius: 2px;
    }

    @media (prefers-reduced-motion: reduce) {
        transition: none;
    }
}

/* ── Two-column body: reading content + metadata card ─────────────────────── */

.pub-item-layout {
    margin-block-start: 2.5rem;
    padding-block-start: 2.5rem;
    border-block-start: 0.0625rem solid color-mix(in srgb, var(--main-color) 14%, transparent);

    display: grid;
    grid-template-columns: minmax(0, 1fr) 20rem;
    gap: 2.5rem 3.5rem;
    align-items: start;
}

/* min-width:0 lets the BibTeX <pre> scroll instead of stretching the column. */
.pub-item-content {
    min-width: 0;
}

/* Metadata card — venue + publisher action + DOI. Sticks below the sticky
   subpage header on tall content. */
.pub-meta-card {
    position: sticky;
    top: 7rem;

    border: 0.0625rem solid color-mix(in srgb, var(--main-color) 14%, transparent);
    border-radius: 0.625rem;
    background: color-mix(in srgb, var(--main-color) 4%, transparent);
    padding: 1.5rem;

    display: flex;
    flex-direction: column;
}

.pub-meta-label {
    font-size: var(--fs-eyebrow);
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--main-color) 45%, transparent);
    margin: 0 0 0.4rem;
}

.pub-meta-journal {
    font-size: 1.0625rem;
    font-style: italic;
    line-height: 1.4;
    color: var(--main-color);
    margin: 0;
}

.pub-meta-detail {
    font-size: 0.875rem;
    line-height: 1.4;
    color: color-mix(in srgb, var(--main-color) 65%, transparent);
    margin: 0.3rem 0 0;
}

/* "View on publisher" — re-uses the skewed-block btn theme; full-width in card. */
.pub-action-btn {
    --_adjusted-font-size: 0.9375rem;
    --_adjusted-padding: 0.55em 1em;
    width: 100%;
    margin-block-start: 1.25rem;

    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;

    & svg {
        height: 0.75em;
        width: 0.75em;
    }
}

/* DOI shown as a plain, citable identifier (the button already resolves to it,
   so this is selectable text, not a second link). */
.pub-item-doi {
    margin: 1.25rem 0 0;

    display: flex;
    flex-direction: column;
    gap: 0.25rem;

    font-size: var(--fs-eyebrow);
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--main-color) 45%, transparent);

    & span {
        font-family: "SFMono-Regular", "SF Mono", "Menlo", "Consolas",
                     "Liberation Mono", monospace;
        font-size: 0.75rem;
        font-weight: 400;
        letter-spacing: 0;
        text-transform: none;
        color: color-mix(in srgb, var(--main-color) 78%, transparent);
        word-break: break-all;
        user-select: all;
    }
}

/* ── Sections (Abstract / BibTeX) ─────────────────────────────────────────── */

.pub-item-section {
    margin-block-end: 2.5rem;
}

.pub-item-section-title {
    font-size: var(--fs-eyebrow);
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--main-color);
    opacity: 0.4;
    margin: 0 0 0.875rem;
}

.pub-item-abstract {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--main-color);
    margin: 0;
}

/* ── BibTeX block ─────────────────────────────────────────────────────────── */

.pub-cite-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-block-end: 0.875rem;

    .pub-item-section-title {
        margin: 0;
    }
}

.pub-copy-btn {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    padding: 0.35rem 0.8rem;
    border: 0.0938rem solid color-mix(in srgb, var(--main-color) 22%, transparent);
    border-radius: 2rem;
    color: var(--main-color);
    background: transparent;
    cursor: pointer;
    opacity: 0.7;
    transition:
        opacity var(--hover-transition-time),
        border-color var(--hover-transition-time),
        color var(--hover-transition-time);

    &:hover {
        opacity: 1;
        border-color: color-mix(in srgb, var(--main-color) 45%, transparent);
    }

    &:focus-visible {
        outline: 0.125rem solid var(--main-color);
        outline-offset: 0.25rem;
    }

    &.is-copied {
        opacity: 1;
        color: var(--r-green);
        border-color: color-mix(in srgb, var(--r-green) 45%, transparent);
    }
}

/* Monospace is intentional here — a code/citation block is the one place the
   universal Outfit/Noto stack should yield to a fixed-width face. */
.pub-bibtex {
    font-family: "SFMono-Regular", "SF Mono", "Menlo", "Consolas",
                 "Liberation Mono", monospace;
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--main-color);
    background: color-mix(in srgb, var(--main-color) 5%, transparent);
    border: 0.0625rem solid color-mix(in srgb, var(--main-color) 12%, transparent);
    border-radius: 0.5rem;
    padding: 1.25rem 1.5rem;
    margin: 0;
    overflow-x: auto;
    white-space: pre;
    tab-size: 2;

    & code {
        font-family: inherit;
    }
}

/* ── Responsive ───────────────────────────────────────────────────────────── */

/* Stack the columns; the metadata card moves above the reading content so the
   publisher action stays visible without scrolling. */
@media (max-width: 56rem) {
    .pub-item-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .pub-item-aside {
        order: -1;
    }

    .pub-meta-card {
        position: static;
    }
}

@media (max-width: 37.5rem) {
    .pub-item-main {
        padding-block: 2rem 5rem;
    }

    .pub-item-abstract {
        font-size: 1rem;
        line-height: 1.65;
    }

    .pub-bibtex {
        padding: 1rem 1.1rem;
    }
}