:root{--bg:#eef2f5;--panel:#fff;--ink:#17212b;--muted:#647383;--line:#d7e0e7;--accent:#1f657a;--accent2:#2d859c;--good:#2d7b52;--warn:#9a6b16;--bad:#a33e3e;--shadow:0 10px 28px rgba(25,45,60,.08)}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--ink);font-family:Segoe UI,Arial,sans-serif}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.topbar{min-height:62px;background:#122832;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 28px;box-shadow:var(--shadow);position:sticky;top:0;z-index:10}.brand{font-size:22px;font-weight:700;color:#fff!important}.brand span{font-weight:400;color:#b8dbe5}.topbar nav{display:flex;gap:18px}.topbar nav a{color:#e8f3f6}.shell{width:min(1500px,96%);margin:24px auto 50px}.page-title h1{margin:0 0 18px;font-size:28px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:var(--shadow);margin-bottom:20px}.narrow{max-width:680px}.login-panel{max-width:470px;margin:50px auto}.flash{padding:12px 14px;border-radius:8px;margin-bottom:14px;background:#e6eef2}.flash.error{background:#fae5e5;color:#7f2525}.flash.ok{background:#e2f3e9;color:#235c3d}.hero-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:20px}.hero-stats div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;box-shadow:var(--shadow)}.hero-stats strong{display:block;font-size:26px}.hero-stats span{color:var(--muted)}.searchbar,.row-form{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.searchbar input{flex:1;min-width:260px}input,select,textarea,button,.button{font:inherit;border:1px solid #bcc9d1;border-radius:7px;padding:9px 11px;background:#fff;color:var(--ink)}button,.button{cursor:pointer;display:inline-block}button.primary,.button.primary{background:var(--accent);color:#fff;border-color:var(--accent);text-decoration:none}.button.small{padding:6px 9px;margin-top:8px}.button.wide{display:block;text-align:center;margin-top:12px}.stack-form,.formgrid{display:grid;gap:13px}.stack-form label,.formgrid label{display:grid;gap:6px;font-weight:600}.formgrid{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:16px}.formgrid .span2{grid-column:1/-1}.check{display:flex!important;grid-auto-flow:column;justify-content:start;align-items:center}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(var(--library-card-width,220px),1fr));gap:var(--library-grid-gap,18px)}.book-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}.cover{display:block;background:#dfe7eb;aspect-ratio:2/3;overflow:hidden}.cover img,.detail-cover{width:100%;height:100%;object-fit:cover;display:block}.cover-placeholder{width:100%;height:100%;min-height:270px;background:linear-gradient(145deg,#d3dde3,#f7f9fa);display:flex;align-items:center;justify-content:center;color:#48606c;font-weight:700}.book-info{padding:14px}.book-info h2{font-size:17px;line-height:1.25;margin:0 0 7px}.book-info p{margin:5px 0}.author{font-weight:600;color:#334a56}.author.large{font-size:18px}.muted{color:var(--muted)}.badges{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}.badge{font-size:11px;border-radius:999px;padding:4px 7px;background:#e7edf0}.badge.good{background:#e0f0e7;color:var(--good)}.badge.warn{background:#f7edd7;color:var(--warn)}.badge.bad{background:#f5dfdf;color:var(--bad)}.pager{display:flex;gap:14px;align-items:center;justify-content:center;margin:28px}.detail-layout{display:grid;grid-template-columns:280px 1fr;gap:20px}.cover-panel{align-self:start}.detail-cover{aspect-ratio:2/3;background:#dfe7eb;border-radius:8px;overflow:hidden}.detailgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0}.detailgrid div{border-bottom:1px solid var(--line);padding-bottom:8px}.detailgrid span{display:block;color:var(--muted);font-size:12px}.detailgrid strong{display:block;margin-top:3px}.description{line-height:1.55}.tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.tag{display:inline-flex;align-items:center;gap:4px;background:#e8f0f3;border-radius:999px;padding:5px 9px}.inline-form{display:inline}.link-button{border:0;background:transparent;padding:0 2px}.tablewrap{overflow:auto}table{border-collapse:collapse;width:100%}th,td{text-align:left;padding:var(--library-cell-y,9px) var(--library-cell-x,10px);border-bottom:1px solid var(--line);vertical-align:top}th{background:#f3f6f8}.path{font-family:Consolas,monospace;font-size:12px;word-break:break-all}.collection-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}.collection-card{display:block;color:var(--ink)}.reader-shell{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}.reader-toolbar,.reader-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:10px 14px;border-bottom:1px solid var(--line);background:#f7f9fa}.reader-toolbar strong{flex:1}.pdf-stage{display:flex;justify-content:center;overflow:auto;background:#67737b;padding:20px;min-height:70vh}.pdf-stage canvas{box-shadow:0 4px 22px rgba(0,0,0,.28);background:#fff;max-width:none;height:auto;display:block;flex:0 0 auto}.epub-stage{background:#fff;min-height:75vh}pre{background:#122832;color:#dcecf1;padding:14px;border-radius:8px;overflow:auto}.footer{text-align:center;color:var(--muted);padding:25px}@media(max-width:760px){.topbar{align-items:flex-start;gap:12px;padding:14px;flex-direction:column}.topbar nav{flex-wrap:wrap}.detail-layout{grid-template-columns:1fr}.cover-panel{max-width:320px}.formgrid,.detailgrid{grid-template-columns:1fr}.book-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}}

/* CybaTek Library v1.1 - library front-page controls */
.library-tools{margin-bottom:16px}
.results-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:14px}
.results-toolbar .muted{margin:0}
.view-switch{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.view-switch-label{color:var(--muted);font-size:13px;font-weight:600}
.view-button{min-width:74px;text-align:center}
.view-button.active{background:var(--accent);border-color:var(--accent);color:#fff;text-decoration:none}

.library-pager{
    display:grid;
    grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
    align-items:center;
    gap:14px;
    margin:18px 0;
    padding:12px 14px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:12px;
    box-shadow:var(--shadow)
}
.pager-buttons{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.pager-status{padding:0 5px;white-space:nowrap}
.button.disabled{opacity:.45;cursor:default;pointer-events:none}
.page-jump{display:flex;align-items:center;justify-content:center;gap:7px}
.page-jump label{font-size:13px;color:var(--muted);font-weight:600;white-space:nowrap}
.page-jump input{width:86px;text-align:center}
.pager-range{justify-self:end;color:var(--muted);font-size:13px;white-space:nowrap}

.list-panel{padding:0;overflow:hidden}
.library-book-list{margin:0}
.library-book-list thead th{position:sticky;top:62px;z-index:2}
.library-book-list tbody tr:hover{background:#f7fafb}
.library-book-list td{vertical-align:middle}
.list-book-title{min-width:280px;font-weight:600}
.list-book-title>a{font-size:15px}
.list-subtitle{display:block;margin-top:3px;color:var(--muted);font-size:12px;font-weight:400}
.list-action{white-space:nowrap;text-align:right}
.library-book-list .badge{display:inline-block;margin:2px 3px 2px 0}

@media(max-width:1050px){
    .library-pager{grid-template-columns:1fr;justify-items:center}
    .pager-buttons{justify-content:center}
    .pager-range{justify-self:center}
}

@media(max-width:760px){
    .results-toolbar{align-items:flex-start}
    .library-pager{padding:10px}
    .pager-buttons{gap:6px}
    .pager-edge{display:none}
    .page-jump{width:100%}
    .library-book-list thead th{top:108px}
}


/* CybaTek Library v1.2 - persistent catalogue zoom */
.display-controls{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.zoom-switch{display:flex;align-items:center;gap:5px;flex-wrap:nowrap}
.zoom-button{min-width:38px;font-size:18px;font-weight:700;line-height:1}
.zoom-reset{min-width:66px;text-align:center;font-variant-numeric:tabular-nums}
.zoom-button:disabled{opacity:.4;cursor:default}

.book-info{font-size:var(--library-book-font,14px)}
.book-info h2{font-size:var(--library-title-font,17px)}
.library-book-list{font-size:var(--library-list-font,14px)}
.library-book-list .list-book-title>a{font-size:var(--library-list-title-font,15px)}
.library-book-list .list-subtitle{font-size:var(--library-list-subtitle-font,12px)}

@media(max-width:760px){
    .display-controls{width:100%;justify-content:space-between}
}


/* CybaTek Library v1.3 - book reader zoom controls */
.reader-zoom{
    display:flex;
    align-items:center;
    gap:5px;
    flex-wrap:nowrap
}
.reader-zoom-label{
    color:var(--muted);
    font-size:13px;
    font-weight:600
}
.reader-zoom .button{
    min-width:38px;
    text-align:center
}
.reader-zoom-value{
    min-width:66px;
    font-variant-numeric:tabular-nums
}
.reader-zoom button:disabled{
    opacity:.4;
    cursor:default
}
@media(max-width:760px){
    .reader-toolbar{
        align-items:flex-start
    }
    .reader-toolbar strong{
        flex-basis:100%
    }
}


/* CybaTek Library v1.5 - user administration */
.admin-heading{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap
}
.admin-heading h2{margin-top:0}
.user-display-name{
    display:block;
    margin-top:4px;
    color:var(--muted);
    font-size:12px
}
.users-table td{vertical-align:top}
.users-table select{min-width:125px}
.inline-control-form{
    display:flex;
    gap:6px;
    align-items:center;
    flex-wrap:wrap
}
.inline-control-form.compact{margin-top:7px}
.user-actions{
    min-width:250px
}
.user-action-box{
    border:1px solid var(--line);
    border-radius:8px;
    padding:8px 10px;
    margin-bottom:8px;
    background:#f8fafb
}
.user-action-box summary{
    cursor:pointer;
    font-weight:600
}
.user-password-form,
.user-delete-form{
    margin-top:10px
}
.danger-box{
    border-color:#e4bbbb;
    background:#fff8f8
}
.danger-button{
    background:#a33e3e;
    color:#fff;
    border-color:#a33e3e
}
.danger-button:hover{
    background:#8d3030
}
@media(max-width:900px){
    .users-table{
        min-width:1050px
    }
}



/* CybaTek Library v1.7 - fixed mid-screen reader page-turn regions */
.reader-side-nav{
    position:fixed;
    top:50%;
    transform:translateY(-50%);
    z-index:100;
    width:70px;
    height:220px;
    border:1px solid rgba(255,255,255,.72);
    background:rgba(18,40,50,.62);
    color:#fff;
    border-radius:12px;
    padding:8px 4px;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:4px;
    opacity:.62;
    box-shadow:0 5px 22px rgba(0,0,0,.24);
    transition:opacity .15s ease, background .15s ease, transform .15s ease;
    backdrop-filter:blur(2px)
}
.reader-side-nav:hover,
.reader-side-nav:focus-visible{
    opacity:1;
    background:rgba(18,40,50,.90)
}
.reader-side-nav:active{
    transform:translateY(-50%) scale(.96)
}
.reader-side-prev{left:8px}
.reader-side-next{right:8px}
.reader-side-arrow{
    font-size:56px;
    line-height:.9;
    font-weight:300;
    text-shadow:0 2px 8px rgba(0,0,0,.45)
}
.reader-side-label{
    font-size:10px;
    letter-spacing:.12em;
    font-weight:700
}

@media(max-width:760px){
    .reader-side-nav{
        width:46px;
        height:150px;
        border-radius:10px;
        opacity:.50
    }
    .reader-side-prev{left:3px}
    .reader-side-next{right:3px}
    .reader-side-arrow{font-size:42px}
    .reader-side-label{font-size:8px}
}


/* CybaTek Library v1.7 - manual cover creation on book details */
.cover-generate-form{margin-top:10px}
.cover-password-form{
    margin-top:12px;
    padding:12px;
    border:1px solid #dfc27d;
    background:#fff8e6;
    border-radius:8px
}
.cover-password-form label{
    display:grid;
    gap:6px;
    font-weight:600
}
.cover-password-note{
    margin:8px 0 0;
    font-size:12px;
    line-height:1.35
}


/* CybaTek Library v2.0 - separated Company Documents subset */
.collection-card-title{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px
}
.collection-card-title h2{margin:0}
.system-collection-card{
    border-style:dashed
}


/* CybaTek Library v2.1 - collection selector and prefix bulk assignment */
.prefix-assign-form{
    display:grid;
    grid-template-columns:minmax(220px,1fr) minmax(220px,1fr) auto;
    gap:12px;
    align-items:end
}
.prefix-assign-form label{
    display:grid;
    gap:6px;
    font-weight:600
}
.searchbar select[name="collection"]{
    min-width:190px
}
@media(max-width:760px){
    .prefix-assign-form{
        grid-template-columns:1fr
    }
}


/* CybaTek Library reader zoom repair
   PDF canvas must NOT be capped to the reader width, otherwise increasing
   the render scale is visually compressed back down to fit the page. */
.reader-zoom{
    padding:3px 5px;
    border:1px solid var(--line);
    border-radius:8px;
    background:#fff
}
.reader-zoom .button{
    font-weight:700
}
.pdf-stage{
    align-items:flex-start
}