/* ==============================================
   Primo File Library — Frontend Styles v2.0
   Modern minimalism: Inter, soft shadows, rounded corners.
   Always light theme.
   ============================================== */

/* --- Design Tokens --- */
:root {
    /* Brand */
    --pfl-primary: #F4782B;
    --pfl-primary-hover: #DC6619;
    --pfl-primary-light: #FFF4ED;
    --pfl-primary-soft: rgba(244, 120, 43, 0.10);

    /* Surface (light) */
    --pfl-bg: #FAFBFC;
    --pfl-bg-card: #FFFFFF;
    --pfl-bg-elevated: #FFFFFF;
    --pfl-bg-hover: #F4F6F9;
    --pfl-bg-input: #FFFFFF;

    /* Text */
    --pfl-text: #0F172A;
    --pfl-text-secondary: #475569;
    --pfl-text-tertiary: #94A3B8;
    --pfl-text-inverse: #FFFFFF;

    /* Border */
    --pfl-border: #E2E8F0;
    --pfl-border-light: #F1F5F9;
    --pfl-border-strong: #CBD5E1;

    /* Type colors (file types) */
    --pfl-pdf: #EF4444;
    --pfl-pdf-bg: #FEF2F2;
    --pfl-doc: #3B82F6;
    --pfl-doc-bg: #EFF6FF;
    --pfl-xls: #10B981;
    --pfl-xls-bg: #ECFDF5;
    --pfl-ppt: #F59E0B;
    --pfl-ppt-bg: #FFFBEB;
    --pfl-video: #8B5CF6;
    --pfl-video-bg: #F5F3FF;
    --pfl-other: #64748B;
    --pfl-other-bg: #F1F5F9;

    /* Radii */
    --pfl-radius-sm: 6px;
    --pfl-radius: 10px;
    --pfl-radius-lg: 14px;
    --pfl-radius-xl: 20px;
    --pfl-radius-full: 9999px;

    /* Shadows */
    --pfl-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --pfl-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --pfl-shadow: 0 4px 12px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
    --pfl-shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.04);
    --pfl-shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.10), 0 4px 12px rgba(15, 23, 42, 0.05);
    --pfl-shadow-primary: 0 4px 14px rgba(244, 120, 43, 0.30);

    /* Spacing scale */
    --pfl-space-1: 4px;
    --pfl-space-2: 8px;
    --pfl-space-3: 12px;
    --pfl-space-4: 16px;
    --pfl-space-5: 20px;
    --pfl-space-6: 24px;
    --pfl-space-8: 32px;
    --pfl-space-10: 40px;
    --pfl-space-12: 48px;

    /* Typography */
    --pfl-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --pfl-font-display: 'Manrope', 'Inter', sans-serif;
    --pfl-font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;

    /* Transitions */
    --pfl-transition: 180ms cubic-bezier(0.4, 0, 0.2, 1);
    --pfl-transition-fast: 120ms cubic-bezier(0.4, 0, 0.2, 1);
    --pfl-transition-slow: 320ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Container --- */
.pfl-library {
    font-family: var(--pfl-font);
    color: var(--pfl-text);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
    display: block;
    line-height: 1.5;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.pfl-library *,
.pfl-library *::before,
.pfl-library *::after {
    box-sizing: border-box;
}

/* ==============================================
   SVG ICON FIX — force outline on all SVG shapes.
   Усилено !important: тема может убирать не только fill, но и stroke,
   делать svg display:none и т.д. Поэтому фиксим всё.
   ============================================== */
.pfl-library svg {
    display: inline-block !important;
    visibility: visible !important;
    opacity: 1 !important;
    overflow: visible !important;
}
.pfl-library svg path,
.pfl-library svg rect,
.pfl-library svg circle,
.pfl-library svg polygon,
.pfl-library svg polyline,
.pfl-library svg line,
.pfl-library svg ellipse {
    fill: none !important;
    stroke: currentColor !important;
    stroke-width: 2 !important;
    stroke-linecap: round !important;
    stroke-linejoin: round !important;
}
.pfl-library svg [fill="currentColor"] {
    fill: currentColor !important;
    stroke: none !important;
}

/* ==============================================
   HEADER / HERO
   ============================================== */
.pfl-library .pfl-header {
    background: linear-gradient(135deg, var(--pfl-bg-card) 0%, var(--pfl-bg) 100%);
    padding: var(--pfl-space-10) 0 var(--pfl-space-8);
    margin-bottom: var(--pfl-space-8);
    border-bottom: 1px solid var(--pfl-border-light);
    position: relative;
    overflow: hidden;
}

.pfl-library .pfl-header::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--pfl-primary-soft) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.pfl-library .pfl-header-inner {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--pfl-space-6);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--pfl-space-5);
}

.pfl-library .pfl-title {
    font-family: var(--pfl-font-display);
    font-size: 38px;
    font-weight: 700;
    color: var(--pfl-text);
    margin: 0;
    line-height: 1.15;
    letter-spacing: -0.025em;
}

.pfl-library .pfl-subtitle {
    font-size: 15px;
    color: var(--pfl-text-secondary);
    margin: 0;
    max-width: 580px;
    line-height: 1.5;
}

.pfl-library .pfl-search-wrap {
    width: 100%;
    max-width: 720px;
    position: relative;
    display: flex;
    align-items: center;
}

.pfl-library .pfl-search-icon {
    position: absolute;
    left: var(--pfl-space-4);
    color: var(--pfl-text-tertiary);
    display: flex;
    align-items: center;
    pointer-events: none;
}

.pfl-library .pfl-search-input {
    width: 100%;
    padding: 14px 48px 14px 48px;
    border: 1.5px solid var(--pfl-border);
    border-radius: var(--pfl-radius-lg);
    font-family: var(--pfl-font);
    font-size: 15px;
    color: var(--pfl-text);
    background: var(--pfl-bg-input);
    box-shadow: var(--pfl-shadow-sm);
    transition: all var(--pfl-transition);
    outline: none;
}

.pfl-library .pfl-search-input::placeholder {
    color: var(--pfl-text-tertiary);
}

.pfl-library .pfl-search-input:hover {
    border-color: var(--pfl-border-strong);
}

.pfl-library .pfl-search-input:focus {
    border-color: var(--pfl-primary);
    box-shadow: 0 0 0 4px var(--pfl-primary-light), var(--pfl-shadow-sm);
}

.pfl-library .pfl-search-clear {
    position: absolute;
    right: var(--pfl-space-3);
    background: transparent;
    border: none;
    color: var(--pfl-text-tertiary);
    width: 28px;
    height: 28px;
    border-radius: var(--pfl-radius-full);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    line-height: 1;
    transition: all var(--pfl-transition-fast);
}

.pfl-library .pfl-search-clear.visible {
    display: flex;
}

.pfl-library .pfl-search-clear:hover {
    background: var(--pfl-bg-hover);
    color: var(--pfl-text);
}

.pfl-library .pfl-search-clear:active {
    background: var(--pfl-border-light);
    transform: scale(0.92);
}

/* ==============================================
   ACTIVE FILTER TAGS
   ============================================== */
.pfl-library .pfl-filter-active-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--pfl-space-2);
    margin-bottom: var(--pfl-space-4);
    padding: 0 var(--pfl-space-6);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.pfl-library .pfl-active-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 6px 6px 12px;
    background: var(--pfl-primary-light);
    color: var(--pfl-primary);
    border-radius: var(--pfl-radius-full);
    font-size: 13px;
    font-weight: 500;
    border: 1px solid var(--pfl-primary-soft);
    transition: all var(--pfl-transition-fast);
}

.pfl-library .pfl-active-tag button {
    background: transparent;
    border: none;
    color: var(--pfl-primary);
    cursor: pointer;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    line-height: 1;
    transition: all var(--pfl-transition-fast);
    opacity: 0.7;
}

.pfl-library .pfl-active-tag button:hover {
    background: rgba(244, 120, 43, 0.15);
    color: var(--pfl-primary);
    opacity: 1;
}

.pfl-library .pfl-active-tag button:active {
    transform: scale(0.9);
}

/* ==============================================
   LAYOUT: sidebar + content
   ============================================== */
.pfl-library .pfl-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: var(--pfl-space-8);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--pfl-space-6);
    align-items: flex-start;
}

/* ==============================================
   SIDEBAR FILTERS
   ============================================== */
.pfl-library .pfl-sidebar {
    position: sticky;
    top: var(--pfl-space-6);
}

.pfl-library .pfl-sidebar-inner {
    background: var(--pfl-bg-card);
    border: 1px solid var(--pfl-border);
    border-radius: var(--pfl-radius-lg);
    box-shadow: var(--pfl-shadow-xs);
    overflow: hidden;
}

/* Accordion */
.pfl-library .pfl-accordion {
    border-bottom: 1px solid var(--pfl-border-light);
}
.pfl-library .pfl-accordion:last-child {
    border-bottom: none;
}

.pfl-library .pfl-accordion-header {
    width: 100%;
    background: transparent;
    border: none;
    padding: var(--pfl-space-4) var(--pfl-space-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-family: var(--pfl-font);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--pfl-text-secondary);
    transition: all var(--pfl-transition-fast);
    text-align: left;
}

.pfl-library .pfl-accordion-header:hover {
    background: var(--pfl-bg-hover);
    color: var(--pfl-text);
}

.pfl-library .pfl-accordion-arrow {
    transition: transform var(--pfl-transition);
    color: var(--pfl-text-tertiary);
}

.pfl-library .pfl-accordion.open .pfl-accordion-arrow {
    transform: rotate(180deg);
}

.pfl-library .pfl-accordion-body {
    padding: 0 var(--pfl-space-4) var(--pfl-space-3);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--pfl-transition-slow), padding var(--pfl-transition);
}

.pfl-library .pfl-accordion.open .pfl-accordion-body {
    padding: 0 var(--pfl-space-4) var(--pfl-space-4);
    max-height: 2000px;
}

/* Checkbox list */
.pfl-library .pfl-checkbox-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pfl-library .pfl-checkbox-list[data-max-visible] .pfl-checkbox-label:nth-child(n+6) {
    display: none;
}

.pfl-library .pfl-checkbox-list.expanded .pfl-checkbox-label {
    display: flex !important;
}

.pfl-library .pfl-checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--pfl-space-3);
    padding: 8px var(--pfl-space-3);
    cursor: pointer;
    font-family: var(--pfl-font);
    font-size: 14px;
    color: var(--pfl-text);
    line-height: 1.4;
    transition: all var(--pfl-transition-fast);
    border-radius: var(--pfl-radius-sm);
    user-select: none;
    position: relative;
}

.pfl-library .pfl-checkbox-label:hover {
    background: var(--pfl-bg-hover);
    color: var(--pfl-text);
}

/* Hidden input — div wrapper handles clicks */
.pfl-library .pfl-checkbox-label input[type="checkbox"] {
    position: absolute;
    left: 0;
    top: 0;
    width: 1px;
    height: 1px;
    margin: 0;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    clip-path: inset(50%);
    border: 0;
    opacity: 0;
    pointer-events: none;
}

/* Custom checkbox (rounded square with checkmark) */
.pfl-library .pfl-checkbox-custom {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--pfl-border-strong);
    border-radius: 5px;
    background: var(--pfl-bg-card);
    transition: all var(--pfl-transition-fast);
    position: relative;
}

.pfl-library .pfl-checkbox-label:hover .pfl-checkbox-custom {
    border-color: var(--pfl-primary);
}

.pfl-library .pfl-checkbox-label input:checked + .pfl-checkbox-custom {
    background: var(--pfl-primary);
    border-color: var(--pfl-primary);
}

.pfl-library .pfl-checkbox-label input:checked + .pfl-checkbox-custom::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.pfl-library .pfl-checkbox-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pfl-library .pfl-checkbox-count {
    flex-shrink: 0;
    background: var(--pfl-bg-hover);
    color: var(--pfl-text-tertiary);
    padding: 2px 8px;
    border-radius: var(--pfl-radius-full);
    font-size: 11px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    min-width: 24px;
    text-align: center;
    transition: all var(--pfl-transition-fast);
}

.pfl-library .pfl-checkbox-label input:checked ~ .pfl-checkbox-count {
    background: var(--pfl-primary);
    color: #fff;
}

/* Disabled (count = 0) */
.pfl-library .pfl-checkbox-label.pfl-disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.pfl-library .pfl-checkbox-label.pfl-disabled:hover {
    background: transparent;
}
.pfl-library .pfl-checkbox-label.pfl-disabled .pfl-checkbox-custom {
    border-color: var(--pfl-border);
}

.pfl-library .pfl-no-filters {
    color: var(--pfl-text-tertiary);
    font-size: 13px;
    padding: 8px var(--pfl-space-3);
    margin: 0;
}

.pfl-library .pfl-show-more {
    background: transparent;
    border: none;
    color: var(--pfl-primary);
    font-family: var(--pfl-font);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    padding: 8px var(--pfl-space-3);
    margin-top: 4px;
    transition: all var(--pfl-transition-fast);
    text-align: left;
    width: 100%;
}

.pfl-library .pfl-show-more:hover {
    color: var(--pfl-primary-hover);
    background: var(--pfl-primary-light);
    border-radius: var(--pfl-radius-sm);
}

/* ==============================================
   CONTENT AREA
   ============================================== */
.pfl-library .pfl-content {
    min-width: 0;
}

.pfl-library .pfl-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--pfl-space-5);
    padding: 0 var(--pfl-space-1);
}

.pfl-library .pfl-results-count {
    font-size: 14px;
    color: var(--pfl-text-secondary);
}

.pfl-library .pfl-results-count strong {
    color: var(--pfl-text);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.pfl-library .pfl-view-toggle {
    display: flex;
    gap: 2px;
    background: var(--pfl-bg-card);
    padding: 4px;
    border-radius: var(--pfl-radius);
    border: 1px solid var(--pfl-border);
}

.pfl-library .pfl-view-btn {
    background: transparent;
    border: none;
    color: var(--pfl-text-secondary);
    width: 44px;
    height: 40px;
    border-radius: var(--pfl-radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--pfl-transition-fast);
}

.pfl-library .pfl-view-btn svg {
    width: 24px;
    height: 24px;
}

.pfl-library .pfl-view-btn:hover {
    color: var(--pfl-primary);
    background: var(--pfl-bg-hover);
}

.pfl-library .pfl-view-btn.active {
    background: var(--pfl-bg-card);
    color: var(--pfl-primary);
    box-shadow: var(--pfl-shadow-xs);
}

/* ==============================================
   GRID / CARDS
   ============================================== */
.pfl-library .pfl-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--pfl-space-5);
}

.pfl-library .pfl-grid.pfl-list {
    grid-template-columns: 1fr;
    gap: var(--pfl-space-3);
}

.pfl-library .pfl-card {
    background: var(--pfl-bg-card);
    border: 1px solid var(--pfl-border);
    border-radius: var(--pfl-radius-lg);
    overflow: hidden;
    transition: all var(--pfl-transition);
    display: flex;
    flex-direction: column;
    position: relative;
}

.pfl-library .pfl-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--pfl-shadow-md);
    border-color: var(--pfl-border-strong);
}

/* Card thumbnail */
.pfl-library .pfl-card-thumb {
    width: 100%;
    height: 180px;
    background: var(--pfl-bg-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--pfl-border-light);
}

.pfl-library .pfl-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--pfl-transition-slow);
}

.pfl-library .pfl-card:hover .pfl-card-thumb img {
    transform: scale(1.04);
}

.pfl-library .pfl-card-thumb .pfl-type-icon {
    color: var(--pfl-text-tertiary);
    opacity: 0.5;
}

.pfl-library .pfl-card-thumb .pfl-type-icon svg {
    width: 64px;
    height: 64px;
}

/* Type badge */
.pfl-library .pfl-card-type-badge {
    position: absolute;
    top: var(--pfl-space-3);
    left: var(--pfl-space-3);
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    color: var(--pfl-text);
    border-radius: var(--pfl-radius-full);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: var(--pfl-shadow-xs);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

/* Цветные варианты бейджей типа */
.pfl-library .pfl-card-type-badge.pfl-badge-pdf {
    background: var(--pfl-pdf);
    color: #fff;
}
.pfl-library .pfl-card-type-badge.pfl-badge-doc {
    background: var(--pfl-doc);
    color: #fff;
}
.pfl-library .pfl-card-type-badge.pfl-badge-xls {
    background: var(--pfl-xls);
    color: #fff;
}
.pfl-library .pfl-card-type-badge.pfl-badge-ppt {
    background: var(--pfl-ppt);
    color: #fff;
}
.pfl-library .pfl-card-type-badge.pfl-badge-video {
    background: var(--pfl-video);
    color: #fff;
}
.pfl-library .pfl-card-type-badge.pfl-badge-image,
.pfl-library .pfl-card-type-badge.pfl-badge-other {
    background: var(--pfl-other);
    color: #fff;
}

/* Card body */
.pfl-library .pfl-card-body {
    padding: var(--pfl-space-5);
    display: flex;
    flex-direction: column;
    gap: var(--pfl-space-3);
    flex: 1;
}

.pfl-library .pfl-card-title {
    font-family: var(--pfl-font);
    font-size: 16px;
    font-weight: 600;
    color: var(--pfl-text);
    margin: 0;
    line-height: 1.35;
    letter-spacing: -0.01em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 44px;
}

.pfl-library .pfl-card-desc {
    font-size: 13px;
    color: var(--pfl-text-secondary);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pfl-library .pfl-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--pfl-space-2) var(--pfl-space-3);
    font-size: 12px;
    color: var(--pfl-text-tertiary);
    margin-top: auto;
}

.pfl-library .pfl-card-meta > span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.pfl-library .pfl-card-meta svg {
    opacity: 0.7;
}

.pfl-library .pfl-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: var(--pfl-space-2);
}

.pfl-library .pfl-card-tag {
    background: var(--pfl-bg-hover);
    color: var(--pfl-text-secondary);
    padding: 2px 8px;
    border-radius: var(--pfl-radius-sm);
    font-size: 11px;
    font-weight: 500;
}

.pfl-library .pfl-card-footer {
    margin-top: var(--pfl-space-3);
    padding-top: var(--pfl-space-3);
    border-top: 1px solid var(--pfl-border-light);
    display: flex;
    gap: var(--pfl-space-2);
}

.pfl-library .pfl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: var(--pfl-radius);
    font-family: var(--pfl-font);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all var(--pfl-transition-fast);
    line-height: 1;
}

.pfl-library .pfl-btn-primary {
    background: var(--pfl-primary);
    color: #fff;
    flex: 1;
}

.pfl-library .pfl-btn-primary:hover {
    background: var(--pfl-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--pfl-shadow-primary);
}

.pfl-library .pfl-open-btn {
    flex: 1;
}

/* List view */
.pfl-library .pfl-list .pfl-card {
    flex-direction: row;
    align-items: stretch;
}

.pfl-library .pfl-list .pfl-card-thumb {
    width: 140px;
    min-width: 140px;
    height: auto;
    border-bottom: none;
    border-right: 1px solid var(--pfl-border-light);
}

.pfl-library .pfl-list .pfl-card-body {
    padding: var(--pfl-space-4) var(--pfl-space-5);
}

/* ==============================================
   EMPTY STATE
   ============================================== */
.pfl-library .pfl-empty {
    grid-column: 1 / -1;
    padding: var(--pfl-space-12) var(--pfl-space-6);
    text-align: center;
    color: var(--pfl-text-tertiary);
}

.pfl-library .pfl-empty svg {
    color: var(--pfl-border-strong);
    margin-bottom: var(--pfl-space-4);
}

.pfl-library .pfl-empty p {
    font-size: 15px;
    margin: 0;
}

/* ==============================================
   LOADING / SPINNER / SKELETON
   ============================================== */
.pfl-library .pfl-loading {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--pfl-space-12);
    color: var(--pfl-text-tertiary);
}

.pfl-library .pfl-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--pfl-border-light);
    border-top-color: var(--pfl-primary);
    border-radius: 50%;
    animation: pfl-spin 0.7s linear infinite;
}

@keyframes pfl-spin {
    to { transform: rotate(360deg); }
}

/* Skeleton placeholders */
.pfl-library .pfl-skeleton {
    background: linear-gradient(90deg, var(--pfl-bg-hover) 25%, var(--pfl-bg-card) 50%, var(--pfl-bg-hover) 75%);
    background-size: 200% 100%;
    animation: pfl-skeleton-shimmer 1.4s ease-in-out infinite;
    border-radius: var(--pfl-radius-sm);
}
@keyframes pfl-skeleton-shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.pfl-library .pfl-card-skeleton,
.pfl-library .pfl-card-list-skeleton {
    pointer-events: none;
    opacity: 0.85;
}
.pfl-library .pfl-skeleton-line {
    height: 12px;
    margin: 8px 0;
    background: linear-gradient(90deg, var(--pfl-bg-hover) 25%, var(--pfl-bg-card) 50%, var(--pfl-bg-hover) 75%);
    background-size: 200% 100%;
    animation: pfl-skeleton-shimmer 1.4s ease-in-out infinite;
    border-radius: 4px;
}
.pfl-library .pfl-skeleton-line-title { height: 18px; width: 85%; margin-bottom: 14px; }
.pfl-library .pfl-skeleton-line-short { width: 55%; }
.pfl-library .pfl-skeleton-line-meta  { width: 70%; height: 10px; margin-top: 18px; }

body.pfl-modal-open { overflow: hidden !important; }

/* ==============================================
   PAGINATION
   ============================================== */
.pfl-library .pfl-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--pfl-space-3);
    margin-top: var(--pfl-space-8);
    padding: var(--pfl-space-4) 0;
}

.pfl-library .pfl-pagination-btn {
    background: var(--pfl-bg-card);
    border: 1px solid var(--pfl-border);
    color: var(--pfl-text);
    padding: 8px 14px;
    border-radius: var(--pfl-radius);
    font-family: var(--pfl-font);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--pfl-transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.pfl-library .pfl-pagination-btn:hover:not(:disabled) {
    background: var(--pfl-bg-hover);
    border-color: var(--pfl-border-strong);
}

.pfl-library .pfl-pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pfl-library .pfl-pagination-info {
    font-size: 13px;
    color: var(--pfl-text-secondary);
    font-variant-numeric: tabular-nums;
}

/* ==============================================
   MODAL (PDF preview)
   ============================================== */
.pfl-library .pfl-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(6px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: var(--pfl-space-6);
    animation: pfl-fade-in var(--pfl-transition);
}

.pfl-library .pfl-modal-overlay.active {
    display: flex;
}

@keyframes pfl-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.pfl-library .pfl-modal {
    background: var(--pfl-bg-card);
    border-radius: var(--pfl-radius-lg);
    width: 100%;
    max-width: 1000px;
    max-height: 92vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--pfl-shadow-lg);
    overflow: hidden;
    animation: pfl-modal-in var(--pfl-transition-slow);
}

@keyframes pfl-modal-in {
    from { transform: translateY(20px) scale(0.97); opacity: 0; }
    to { transform: translateY(0) scale(1); opacity: 1; }
}

.pfl-library .pfl-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--pfl-space-4) var(--pfl-space-5);
    border-bottom: 1px solid var(--pfl-border);
    background: var(--pfl-bg-card);
}

.pfl-library .pfl-modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--pfl-text);
    margin: 0;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pfl-library .pfl-modal-close {
    background: transparent;
    border: none;
    color: var(--pfl-text-tertiary);
    width: 32px;
    height: 32px;
    border-radius: var(--pfl-radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--pfl-transition-fast);
}

.pfl-library .pfl-modal-close:hover {
    background: var(--pfl-bg-hover);
    color: var(--pfl-text);
}

.pfl-library .pfl-modal-body {
    flex: 1;
    overflow: auto;
    padding: var(--pfl-space-5);
    background: var(--pfl-bg);
    min-height: 400px;
}

.pfl-library .pfl-pdf-page {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    box-shadow: var(--pfl-shadow-md);
    border-radius: var(--pfl-radius-sm);
}

.pfl-library .pfl-modal-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--pfl-space-3) var(--pfl-space-5);
    border-top: 1px solid var(--pfl-border);
    background: var(--pfl-bg-card);
    gap: var(--pfl-space-3);
}

.pfl-library .pfl-modal-page-nav {
    display: flex;
    align-items: center;
    gap: var(--pfl-space-3);
}

.pfl-library .pfl-modal-page-btn {
    background: var(--pfl-bg-hover);
    border: 1px solid var(--pfl-border);
    color: var(--pfl-text);
    width: 32px;
    height: 32px;
    border-radius: var(--pfl-radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--pfl-transition-fast);
}

.pfl-library .pfl-modal-page-btn:hover:not(:disabled) {
    background: var(--pfl-primary);
    color: #fff;
    border-color: var(--pfl-primary);
}

.pfl-library .pfl-modal-page-info {
    font-size: 13px;
    color: var(--pfl-text-secondary);
    font-variant-numeric: tabular-nums;
    min-width: 50px;
    text-align: center;
}

/* ==============================================
   RESPONSIVE
   ============================================== */
@media (max-width: 1024px) {
    .pfl-library .pfl-layout {
        grid-template-columns: 1fr;
    }
    .pfl-library .pfl-sidebar {
        position: relative;
        top: 0;
    }
    .pfl-library .pfl-title {
        font-size: 32px;
    }
}

@media (max-width: 640px) {
    .pfl-library .pfl-header {
        padding: var(--pfl-space-6) 0 var(--pfl-space-5);
    }
    .pfl-library .pfl-layout {
        padding: 0 var(--pfl-space-4);
        gap: var(--pfl-space-5);
    }
    .pfl-library .pfl-title {
        font-size: 26px;
    }
    .pfl-library .pfl-grid {
        grid-template-columns: 1fr;
        gap: var(--pfl-space-4);
    }
    .pfl-library .pfl-list .pfl-card {
        flex-direction: column;
    }
    .pfl-library .pfl-list .pfl-card-thumb {
        width: 100%;
        min-width: 100%;
        height: 140px;
        border-right: none;
        border-bottom: 1px solid var(--pfl-border-light);
    }
    .pfl-library .pfl-toolbar {
        flex-direction: column;
        gap: 8px;
        align-items: stretch;
    }
    .pfl-library .pfl-view-toggle {
        align-self: flex-end;
    }
}