/* pages.css - Pages mode organiser (#organizer, .org-*): the page-card grid, selection,
   hover actions, rubber band, insertion bar, file-drop hint, drag ghost and the small
   dialogs of the page commands. The .org-ghost* classes are also used by the sidebar's
   thumbnail strip (the ghost lives in <body> while dragging). */

/* Defaults only (zero specificity): the shell owns #organizer's display and placement. */
:where(#organizer) {
    position: relative;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    background-color: var(--desk);
    background-image: radial-gradient(var(--desk-dot) 1px, transparent 1.3px);
    background-size: 18px 18px;
}

#organizer [hidden],
.org-dlg [hidden] { display: none !important; }

.org-scroll {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    overflow: auto;
    overscroll-behavior: contain;
}

/* ------------------------------------------------------------------ header row */

.org-head {
    position: sticky;
    top: 0;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 16px;
    min-height: 48px;
    padding: 8px 24px;
    background: color-mix(in srgb, var(--desk) 88%, transparent);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--dur) var(--ease);
    font-size: var(--fs-s);
    color: var(--text-2);
}
.org-head.scrolled { border-bottom-color: var(--line); }

.org-count { white-space: nowrap; }
.org-n {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
    color: var(--text);
}
.org-sep { margin: 0 7px; color: var(--text-3); }
/* the selection count ("· 3 selected") sits on an orange chip, like the selected pages' numbers */
.org-sep + .org-n {
    display: inline-block;
    min-width: 20px;
    padding: 0 6px;
    border-radius: var(--radius-xs);
    background: var(--accent);
    color: var(--on-accent);
    font-weight: 600;
    line-height: 20px;
    text-align: center;
}

.org-tip {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--fs-xs);
    color: var(--text-3);
}

.org-size-wrap {
    margin-left: auto;
    display: flex;
    align-items: center;
    flex: none;
}

/* ------------------------------------------------------------------ grid */

.org-area {
    position: relative;
    flex: 1 0 auto;
    padding: 12px 24px 72px;
}

.org-grid {
    display: grid;
    /* card = slot width + 2 x 8px padding (pages.js CARD_PAD) */
    grid-template-columns: repeat(auto-fill, calc(var(--org-cell, 176px) + 16px));
    justify-content: center;
    column-gap: 16px;
    row-gap: 20px;
}

.org-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 8px 8px 6px;
    border-radius: var(--radius);
    outline: none;
    cursor: default;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    touch-action: pan-y;
    transition: background-color var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}
@media (hover: hover) {
    .org-card:hover { background: color-mix(in srgb, var(--surface) 62%, transparent); }
}
/* Keyboard focus only: pages.js sets data-input="pointer" after a mouse/touch press, and
   Chrome counts the focus it moves to the clicked card as :focus-visible even then. */
#organizer:not([data-input="pointer"]) .org-card:focus-visible {
    background: color-mix(in srgb, var(--surface) 62%, transparent);
    box-shadow: 0 0 0 2px var(--ink);
}
.org-card.dragging { opacity: 0.32; }

.org-slot {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--org-cell, 176px);
    height: var(--org-slot-h, 249px);
}

.org-paper {
    position: relative;
    flex: none;
    overflow: hidden;
    background: var(--paper);
    border-radius: 2px;
    box-shadow: var(--shadow-1), 0 0 0 1px var(--line);
    transition: outline-color var(--dur-fast) var(--ease), transform var(--dur) var(--ease),
                box-shadow var(--dur) var(--ease);
}
.org-paper > canvas,
.org-paper > svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

/* selection: an orange frame around the sheet + an orange chip on its number */
.org-card.selected .org-paper {
    outline: 2px solid var(--accent-line);
    outline-offset: 3px;
}
/* with nothing selected, commands act on the current page: show which one, quietly */
.org-grid:not(.has-selection) .org-card.current .org-paper {
    outline: 1.5px dashed var(--ink-line);
    outline-offset: 3px;
}
.org-card.org-lifted .org-paper {
    transform: scale(1.04);
    box-shadow: var(--shadow-pop);
}

/* loading spinner (shown only if rendering takes a moment) */
.org-spin {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 18px;
    height: 18px;
    margin: -9px 0 0 -9px;
    border-radius: 50%;
    border: 2px solid var(--line);
    border-top-color: var(--accent-line);
    opacity: 0;
    transition: opacity var(--dur) var(--ease);
    animation: org-spin 0.8s linear infinite;
    pointer-events: none;
}
.org-paper.org-loading .org-spin {
    opacity: 1;
    transition-delay: 150ms;
}
@keyframes org-spin { to { transform: rotate(360deg); } }

/* "Edited" badge: the page has objects added in Bullet PDF */
.org-badge {
    position: absolute;
    left: 6px;
    bottom: 6px;
    z-index: 1;
    display: none;
    align-items: center;
    gap: 4px;
    padding: 2px 7px 2px 5px;
    border-radius: var(--pill);
    background: var(--surface);
    color: var(--text-2);
    font-size: var(--fs-xs);
    font-weight: 600;
    line-height: 14px;
    box-shadow: var(--shadow-1), 0 0 0 1px var(--line);
    pointer-events: none;
}
.org-card.edited .org-badge { display: inline-flex; }
.org-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--ink);
}
.org-compact .org-badge { padding: 4px; }
.org-compact .org-badge-text { display: none; }

/* number + source file name */
.org-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    max-width: var(--org-cell, 176px);
    min-height: 20px;
}
.org-num {
    padding: 0 6px;
    border-radius: 2px;
    font-family: var(--font-mono);
    font-size: var(--fs-s);
    font-variant-numeric: tabular-nums;
    line-height: 20px;
    color: var(--text-2);
}
.org-card.selected .org-num {
    color: var(--on-accent);
    font-weight: 600;
    background: var(--accent);
    border-radius: var(--radius-xs);
}
.org-src {
    max-width: 100%;
    height: 16px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--fs-xs);
    line-height: 16px;
    color: var(--text-3);
    opacity: 0;
    transition: opacity var(--dur-fast) var(--ease);
}
.org-src:empty { display: none; }
.org-card:hover .org-src,
#organizer:not([data-input="pointer"]) .org-card:focus-visible .org-src { opacity: 1; }

/* ------------------------------------------------------------------ hover actions */

.org-actions {
    position: absolute;
    top: 6px;
    left: 50%;
    z-index: 2;
    display: flex;
    gap: 2px;
    padding: 3px;
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-pop), 0 0 0 1px var(--line);
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, -3px);
    transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.org-card:hover .org-actions,
#organizer:not([data-input="pointer"]) .org-card:focus-within .org-actions {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, 0);
}
.org-actions .org-action-danger:hover { color: var(--red); }
.org-is-dragging .org-actions,
.org-file-over .org-actions { display: none; }

/* touch screens: no hover, so the actions show on selected pages instead */
@media (hover: none) {
    .org-card:hover .org-actions {
        opacity: 0;
        pointer-events: none;
    }
    .org-card.selected .org-actions {
        opacity: 1;
        pointer-events: auto;
        transform: translate(-50%, 0);
    }
    .org-card.selected .org-src { opacity: 1; }
}

/* ------------------------------------------------------------------ band, insertion bar, drop hint */

.org-band {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 2;
    border: 1px solid var(--accent-line);
    border-radius: 3px;
    background: var(--accent-soft);
    pointer-events: none;
}

.org-insert {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 2;
    width: 3px;
    border-radius: 2px;
    background: var(--accent-line);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--desk) 70%, transparent);
    pointer-events: none;
}
.org-insert::before,
.org-insert::after {
    content: "";
    position: absolute;
    left: 50%;
    width: 9px;
    height: 9px;
    margin-left: -4.5px;
    border-radius: 50%;
    background: var(--accent-line);
}
.org-insert::before { top: -5px; }
.org-insert::after { bottom: -5px; }

.org-drophint {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 11px 5px 9px;
    border-radius: var(--pill);
    background: var(--accent);
    color: var(--on-accent);
    font-size: var(--fs-s);
    font-weight: 600;
    white-space: nowrap;
    box-shadow: var(--shadow-pop);
    pointer-events: none;
}

.org-is-dragging,
.org-is-dragging * { cursor: grabbing !important; }

/* ------------------------------------------------------------------ drag ghost (shared) */

.org-ghost {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 10000;
    pointer-events: none;
    will-change: transform;
}
.org-ghost-sheet {
    position: absolute;
    left: 0;
    top: 0;
    background: var(--paper);
    border-radius: 2px;
    box-shadow: var(--shadow-1), 0 0 0 1px var(--line);
}
.org-ghost-face {
    overflow: hidden;
    box-shadow: var(--shadow-pop), 0 0 0 1px var(--line);
}
.org-ghost-face > canvas,
.org-ghost-face > svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}
.org-ghost-count {
    position: absolute;
    right: -10px;
    top: -10px;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: var(--pill);
    background: var(--accent);
    color: var(--on-accent);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 600;
    line-height: 22px;
    text-align: center;
    box-shadow: var(--shadow-1);
}

/* screen-reader announcements ("Moved page to position 4") */
.org-live {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

/* ------------------------------------------------------------------ dialogs (insert blank, split) */

.org-dlg {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.org-split { gap: 8px; }

.org-radio {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 10px;
    min-height: 40px;
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius-s);
    font-size: var(--fs-m);
    color: var(--text);
    cursor: pointer;
    transition: background-color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.org-radio:hover { background: var(--surface-2); }
.org-radio:has(input:checked) {
    border-color: var(--accent-line);
    background: var(--accent-soft);
}
.org-radio > input {
    flex: none;
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--accent-line);
}
.org-radio > span {
    display: inline-flex;
    flex-direction: column;
}
.org-radio.disabled {
    opacity: 0.55;
    cursor: default;
}
.org-radio.disabled:hover { background: transparent; }
.org-radio-hint {
    font-size: var(--fs-xs);
    color: var(--text-3);
}
.org-split-summary {
    margin: 6px 2px 0;
    font-size: var(--fs-s);
    color: var(--text-2);
}

/* ------------------------------------------------------------------ small screens & motion */

@media (max-width: 600px) {
    .org-head {
        gap: 10px;
        padding: 8px 14px;
    }
    .org-tip { display: none; }
    .org-area { padding: 8px 10px 64px; }
    .org-grid {
        column-gap: 8px;
        row-gap: 12px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .org-spin { animation: none; }
    .org-card.org-lifted .org-paper { transform: none; }
}