/* cv-document-viewer.css
 *
 * Ported from docbro's styles.css — PDF page tiles, columns grid,
 * text/annotation layers, and the floating .pdf-controlbox — plus
 * the CV-specific bbox highlight overlays and the .cv-pdf-chrome /
 * .cvchat-launcher positioning inside .pdf-page.
 *
 * Class contract (matches docbro):
 *   .document-viewer-wrapper                    — outer host (this.element)
 *   .content-container.content-pane             — docbro's contentContainer
 *   .document-content.active.pdf-doc            — per-document flex column
 *   .document-content-inner.pdf-content         — page tiles + scroll host
 *   .document-content-inner.pdf-content.pdf-cols — LayoutManager grid mode
 *   .pdf-page                                    — one page tile
 *   #pdfControlBox / .pdf-controlbox            — floating control box
 *
 * LayoutManager pushes:
 *   --pdf-page-width      (px)   width of each page
 *   --pdf-grid-cols       (rule) grid-template-columns
 *   --pdf-content-maxw    (px)   inner pdf-content max-width
 *
 * NOTE: --pdf-zoom is intentionally left unset in this file — docbro's
 * layout is px-based, not a multiplier. The `var(--pdf-zoom, 1)`
 * fallbacks on the chrome + launcher rules make those overlays render
 * at their base (1×) size regardless of PDF zoom.
 */

/* --- wrapper + inner containers --------------------------------------- */

.document-viewer-wrapper {
    height: 100%;
    display: flex;
    box-sizing: border-box;
    background: transparent;
}

.document-viewer-wrapper .content-container {
    flex: 1;
    min-width: 0;
    min-height: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}

.document-content {
    display: none;
    width: 100%;
    margin: 0;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    /* border-box so any padding (e.g. the 7 px inset on .pdf-doc)
       lives INSIDE the 100 % width — otherwise the doc extends past
       the stage on the right and looks like the chat panel is
       occluding the PDF. */
    box-sizing: border-box;
}
.document-content.active {
    display: flex;
    flex-direction: column;
}
/* Center the (narrowed) PDF scroll container so the vertical scrollbar
   sits near the page's right border instead of at the far pane edge. */
.document-content.active.pdf-doc {
    align-items: center;
    padding: 7px;
}

.document-content-inner {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    box-sizing: border-box;
}
.document-content-inner.pdf-content {
    padding: 0 5px 0 0;
    align-items: flex-start;
}

/* --- PDF page tile ---------------------------------------------------- */

.pdf-page {
    position: relative;
    display: flex;
    justify-content: center;
    overflow: hidden;
    border: 0.5px solid #99999999;
    box-shadow: rgba(60, 64, 67, 0.3) 0px 1px 2px 0px,
                rgba(60, 64, 67, 0.15) 0px 1px 3px 1px;
    max-width: calc(900px * var(--pdf-zoom, 1));
    width: 100%;
    margin: 0 auto 5px auto;
    background: white;
}
.pdf-page:empty {
    background-color: #f0f0f0;
}
/* Direct-child scope: the pdf.js canvas + annotation-layer imgs are
   direct children of .pdf-page. Descendants (e.g. Diana's portrait
   inside .cvchat-launcher, which is re-parented into .pdf-page by
   the shell's MutationObserver) must NOT inherit width: 100% or they
   render at their parent's max-content = natural image size. */
.pdf-page > canvas,
.pdf-page > img {
    display: block;
    width: 100% !important;
    height: auto !important;
}

/* Text layer (transparent overlay for text selection). */
.pdf-page .textLayer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    opacity: 0.25;
    line-height: 1.0;
}
.pdf-page .textLayer span {
    color: transparent;
    position: absolute;
    white-space: pre;
    transform-origin: 0 0;
    font-size: calc(var(--scale-factor) * var(--font-height));
    transform: scaleX(var(--scale-x));
}
.pdf-page .textLayer ::selection {
    background: rgba(0, 0, 255, 0.3);
}

/* Annotation layer (PDF URI links). */
.pdf-page .annotationLayer {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: 0 0;
    z-index: 2;
    pointer-events: none;
}
.pdf-page .annotationLayer section,
.pdf-page .annotationLayer a {
    pointer-events: auto;
    cursor: pointer;
}

/* --- columns grid (LayoutManager) ------------------------------------- */

.document-content-inner.pdf-content.pdf-cols {
    display: grid;
    grid-template-columns: var(--pdf-grid-cols, max-content);
    grid-auto-rows: max-content;
    justify-content: center;
    align-content: start;
    align-items: start;
    gap: 6px;
    overflow-x: auto;
    box-sizing: border-box;
    width: 100%;
    max-width: var(--pdf-content-maxw, 100%);
    padding-left: 0;
    padding-right: 0;
}
.document-content-inner.pdf-content.pdf-cols .pdf-page {
    width: var(--pdf-page-width, 100%);
    max-width: none;
    margin: 0;
    box-shadow: rgba(0, 0, 0, 0.25) 0px 0.0625em 0.0625em,
                rgba(0, 0, 0, 0.25) 0px 0.125em 0.5em,
                rgba(255, 255, 255, 0.1) 0px 0px 0px 1px inset;
}
/* Same direct-child scope as the base rule above — must not force
   Diana's re-parented launcher img to fill the whole page. */
.document-content-inner.pdf-content.pdf-cols .pdf-page > canvas,
.document-content-inner.pdf-content.pdf-cols .pdf-page > img {
    width: 100% !important;
    height: 100% !important;
    display: block;
}

/* --- scrollbar (slim, appears on hover of the pane) ------------------- */

.document-content-inner.pdf-content::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
.document-content-inner.pdf-content::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 8px;
    margin-block: 4px;
}
.document-content-inner.pdf-content::-webkit-scrollbar-thumb {
    background-color: transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.18s ease;
}
/* Only reveal the scrollbar thumb when the cursor is actually over
   a page tile (or grabbing the thumb itself). Hovering the pane
   background or the control-box area no longer shows the scrollbar. */
.document-content-inner.pdf-content:has(.pdf-page:hover)::-webkit-scrollbar-thumb {
    background-color: rgba(96, 150, 229, 0.60);
}
.document-content-inner.pdf-content::-webkit-scrollbar-thumb:hover {
    background-color: rgba(72, 145, 255, 0.6);
}

/* --- CV-specific: chrome overlay (Download PDF pill) ------------------ */

.pdf-page > .cv-pdf-chrome {
    position: absolute;
    top: calc(14px * var(--pdf-zoom, 1));
    right: calc(14px * var(--pdf-zoom, 1));
    z-index: 5;
    /* Hidden until the user hovers over the document — same affordance
       as the slim scrollbar fading in on hover. */
    opacity: 0;
    transition: opacity 0.18s ease;
}
/* Chrome fades in only when a page tile is actually being hovered
   (or the chrome itself). Hovering the pane background — including
   the empty space around the pages — leaves it hidden. */
.pdf-content:has(.pdf-page:hover) .pdf-page > .cv-pdf-chrome,
.pdf-page > .cv-pdf-chrome:hover,
.pdf-page > .cv-pdf-chrome:focus-within {
    opacity: 1;
}
.pdf-page > .cv-pdf-chrome a {
    width: calc(36px * var(--pdf-zoom, 1));
    height: calc(36px * var(--pdf-zoom, 1));
    border-radius: calc(8px * var(--pdf-zoom, 1));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgb(255 255 255 / 78%);
    backdrop-filter: blur(8px);
    border: 0.5px solid #cccccc;
    text-decoration: none;
}
.pdf-page > .cv-pdf-chrome img {
    width: calc(18px * var(--pdf-zoom, 1));
    height: calc(18px * var(--pdf-zoom, 1));
}

/* --- CV-specific: Diana launcher (merged pill + portrait) ------------- */

body.cv-pdf-mode .pdf-page > .cvchat-launcher {
    position: absolute;
    top: calc(10px * var(--pdf-zoom, 1));
    right: 30%;
    bottom: auto;
    left: auto;
    margin: 0;
    z-index: 5;
    padding: 0;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    gap: 0;
    flex-direction: row-reverse;
    align-items: center;
}
body.cv-pdf-mode .pdf-page > .cvchat-launcher:hover {
    transform: translateY(calc(-2px * var(--pdf-zoom, 1)));
}
body.cv-pdf-mode .pdf-page > .cvchat-launcher .cvchat-launcher-img {
    width: calc(56px * var(--pdf-zoom, 1));
    height: calc(56px * var(--pdf-zoom, 1));
    border-width: calc(7px * var(--pdf-zoom, 1));
    flex: none;
    margin-left: calc(-8px * var(--pdf-zoom, 1));
    position: relative;
    z-index: 1;
    border-color: #ffe19b;
}
body.cv-pdf-mode .pdf-page > .cvchat-launcher:hover .cvchat-launcher-img {
    box-shadow: 0 calc(12px * var(--pdf-zoom, 1)) calc(30px * var(--pdf-zoom, 1)) rgba(12, 94, 110, 0.45),
                0 calc(2px * var(--pdf-zoom, 1)) calc(6px * var(--pdf-zoom, 1)) rgba(0, 0, 0, 0.22);
}
body.cv-pdf-mode .pdf-page > .cvchat-launcher > span {
    font-size: calc(13px * var(--pdf-zoom, 1));
    font-weight: 400;
    font-family: Arial;
    max-width: calc(225px * var(--pdf-zoom, 1));
    line-height: 1.2;
    align-self: center;
    height: auto;
    background: #ffe19b;
    padding: calc(8px * var(--pdf-zoom, 1)) calc(14px * var(--pdf-zoom, 1));
    border-radius: 999px 0px 0px 999px;
}
body.cv-pdf-mode .pdf-page > .cvchat-launcher:hover > span {
    box-shadow: 0 calc(12px * var(--pdf-zoom, 1)) calc(30px * var(--pdf-zoom, 1)) rgba(12, 94, 110, 0.45),
                0 calc(2px * var(--pdf-zoom, 1)) calc(6px * var(--pdf-zoom, 1)) rgba(0, 0, 0, 0.22);
}

/* --- CV-specific: citation bbox highlight overlay --------------------- */

.pdf-bbox-highlight-layer {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: 0 0;
    z-index: 3;
    pointer-events: none;
}
.pdf-bbox-highlight {
    position: absolute;
    background: rgb(0 255 139 / 16%);
    border: 0.5px dashed #559766;
    border-radius: 2px;
    box-shadow: 0 0 0 4px rgba(255, 220, 0, 0.10);
    animation: pdf-bbox-fadein 0.18s ease;
    /* Layer is pointer-events:none so PDF text selection still works.
       Rect itself is interactive so clicking it dismisses the
       highlight (mirrors clicking the citation badge a second time). */
    pointer-events: auto;
    cursor: pointer;
}
@keyframes pdf-bbox-fadein {
    from { opacity: 0; transform: scale(1.04); }
    to   { opacity: 1; transform: scale(1); }
}

/* --- floating control box (docbro's .pdf-controlbox) ------------------ */

.pdf-controlbox {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 5px 9px;
    background: rgba(31, 31, 31, 0.92);
    border: 0.5px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    color: #e6e6e6;
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 13px;
    user-select: none;
    z-index: 60;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
}
.pdf-controlbox.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}
.pcb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 26px;
    height: 26px;
    padding: 0 6px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: #e6e6e6;
    font-size: 17px;
    line-height: 1;
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
}
.pcb-btn:hover {
    background-color: rgba(255, 255, 255, 0.12);
    color: #ffc630;
}
.pcb-btn.pcb-glyph { font-size: 15px; }
.pcb-sep {
    width: 1px;
    align-self: stretch;
    margin: 2px 4px;
    background: rgba(255, 255, 255, 0.15);
}
.pcb-page {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-variant-numeric: tabular-nums;
}
.pcb-page-input {
    width: 34px;
    height: 22px;
    text-align: center;
    background: rgba(255, 255, 255, 0.08);
    border: 0.5px solid rgba(255, 255, 255, 0.18);
    border-radius: 5px;
    color: #fff;
    font-size: 12px;
    font-variant-numeric: tabular-nums;
    outline: none;
}
.pcb-page-input:focus { border-color: #ffc630; }
.pcb-page-sep { color: #9a9a9a; }
.pcb-page-total { min-width: 14px; color: #cfcfcf; }
.pcb-zoom {
    min-width: 40px;
    text-align: center;
    font-variant-numeric: tabular-nums;
    color: #cfcfcf;
}
/* Editable zoom readout (CV variant): styled like the page input so the
   two editables in the bar read as a matched pair. */
.pcb-zoom-input {
    width: 52px;
    height: 22px;
    padding: 0 4px;
    background: rgba(255, 255, 255, 0.08);
    border: 0.5px solid rgba(255, 255, 255, 0.18);
    border-radius: 5px;
    color: #fff;
    font-size: 12px;
    font-family: inherit;
    outline: none;
    box-sizing: border-box;
}
.pcb-zoom-input:focus { border-color: #ffc630; }
.pcb-cols-icon {
    font-size: 15px;
    color: #cfcfcf;
    line-height: 1;
}
.pcb-cols {
    width: 70px;
    accent-color: #ffc630;
    cursor: pointer;
}
.pcb-cols-value {
    min-width: 10px;
    text-align: center;
    color: #cfcfcf;
    font-variant-numeric: tabular-nums;
}

/* --- error state ------------------------------------------------------ */

.document-viewer-error {
    padding: 32px;
    text-align: center;
    color: #c1432a;
    font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}