body {
    background: #07111f;
    color: #e8f7ff;
}

#particles-js,
body::before,
.app-footer {
    display: none;
}

.main-content {
    max-width: none;
    padding: 0;
}

.literature-page {
    --lit-ink: #e8f7ff;
    --lit-muted: #8fb4c8;
    --lit-line: rgba(126, 200, 236, 0.22);
    --lit-soft: rgba(87, 196, 246, 0.11);
    --lit-panel: rgba(9, 27, 45, 0.86);
    --lit-teal: #47d8ff;
    --lit-teal-dark: #57c4f6;
    --lit-blue: #8fb4ff;
    --lit-amber: #f2b84b;
    --lit-red: #ff8c86;
    --lit-mint: rgba(100, 228, 186, 0.14);
    display: grid;
    grid-template-columns: 230px minmax(520px, 1fr) 320px;
    min-height: calc(100vh - 70px);
    background: radial-gradient(circle at 50% 12%, rgba(31, 115, 157, 0.22), transparent 32%), #07111f;
    color: var(--lit-ink);
}

.literature-page button,
.literature-page input,
.literature-page select {
    font: inherit;
}

.literature-sidebar,
.literature-detail-panel {
    background: rgba(7, 17, 31, 0.88);
    border-color: var(--lit-line);
    border-style: solid;
    min-width: 0;
}

.literature-sidebar {
    border-width: 0 1px 0 0;
    padding: 18px 16px;
    overflow-y: auto;
}

.literature-main {
    min-width: 0;
    padding: 16px;
    border-right: 1px solid var(--lit-line);
}

.literature-detail-panel {
    border-width: 0;
    overflow-y: auto;
}

.library-panel {
    padding: 14px 0;
    border-bottom: 1px solid var(--lit-line);
}

.library-panel h2 {
    margin: 0;
    color: #d7f1ff;
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.panel-title-row,
.literature-commandbar,
.literature-toolbar,
.literature-filters,
.literature-results-head,
.modal-head,
.modal-actions {
    display: flex;
    align-items: center;
}

.panel-title-row {
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
}

.overview-metrics {
    display: grid;
    gap: 9px;
}

.metric-row,
.library-link,
.folder-row,
.tag-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.metric-row span,
.folder-row span,
.tag-row span,
.library-link span {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.metric-row {
    color: var(--lit-muted);
    font-size: 0.8rem;
}

.metric-row strong {
    color: var(--lit-ink);
    font-size: 0.82rem;
}

.storage-bar {
    height: 5px;
    margin-top: 12px;
    overflow: hidden;
    background: rgba(126, 200, 236, 0.16);
    border-radius: 999px;
}

.storage-bar span {
    display: block;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--lit-teal), var(--lit-amber));
}

.library-list {
    display: grid;
    gap: 4px;
}

.folder-row,
.tag-row,
.library-link {
    width: 100%;
    min-height: 32px;
    padding: 6px 8px;
    border: 1px solid transparent;
    border-radius: 6px;
    background: transparent;
    color: #d7f1ff;
    cursor: pointer;
    text-align: left;
}

.folder-row:hover,
.tag-row:hover,
.library-link:hover,
.folder-row.active,
.tag-row.active,
.library-link.active {
    border-color: rgba(87, 196, 246, 0.48);
    background: rgba(87, 196, 246, 0.13);
    color: var(--lit-teal-dark);
}

.folder-row i,
.tag-row i,
.library-link i {
    width: 16px;
    height: 16px;
    flex: 0 0 16px;
}

.folder-row .row-label,
.tag-row .row-label,
.library-link .row-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.folder-row strong,
.tag-row strong,
.library-link strong {
    color: var(--lit-muted);
    font-size: 0.75rem;
    font-weight: 700;
}

.tag-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--tag-color, var(--lit-blue));
}

.compact-links {
    border-bottom: none;
}

.literature-commandbar {
    gap: 18px;
    min-height: 54px;
    padding: 0 4px 12px;
}

.workspace-select {
    width: 210px;
    min-width: 170px;
}

.workspace-select > span {
    display: block;
    margin-bottom: 2px;
    color: var(--lit-muted);
    font-size: 0.7rem;
}

.workspace-select button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    max-width: 100%;
    padding: 8px 10px;
    border: 1px solid rgba(126, 200, 236, 0.24);
    border-radius: 6px;
    background: rgba(10, 31, 52, 0.92);
    color: var(--lit-ink);
    cursor: pointer;
}

.workspace-select strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.86rem;
}

.global-search,
.filter-search {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    border: 1px solid rgba(126, 200, 236, 0.24);
    border-radius: 6px;
    background: rgba(10, 31, 52, 0.92);
    color: var(--lit-muted);
}

.global-search {
    flex: 1;
    height: 38px;
    padding: 0 12px;
}

.filter-search {
    width: min(260px, 100%);
    height: 36px;
    padding: 0 10px;
}

.global-search input,
.filter-search input {
    width: 100%;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    color: var(--lit-ink);
    font-size: 0.88rem;
}

.literature-toolbar {
    justify-content: space-between;
    gap: 14px;
    min-height: 44px;
    padding: 8px 0;
    border-top: 1px solid var(--lit-line);
    border-bottom: 1px solid var(--lit-line);
}

.select-all-control {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #d7f1ff;
    font-size: 0.86rem;
    white-space: nowrap;
}

.toolbar-actions {
    display: flex;
    align-items: center;
    gap: 3px;
    overflow-x: auto;
}

.toolbar-actions button,
.primary-action,
.ghost-action,
.danger-action,
.icon-btn,
.view-toggle button,
.detail-tabs button,
.analysis-button,
.tag-chip,
.small-action {
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.toolbar-actions button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 32px;
    padding: 6px 9px;
    background: transparent;
    color: #d7f1ff;
    font-size: 0.82rem;
    white-space: nowrap;
}

.toolbar-actions button:hover:not(:disabled),
.icon-btn:hover,
.small-action:hover,
.view-toggle button:hover,
.view-toggle button.active {
    border-color: rgba(87, 196, 246, 0.48);
    background: rgba(87, 196, 246, 0.13);
    color: var(--lit-teal-dark);
}

.toolbar-actions button:disabled {
    color: #a4adb5;
    cursor: not-allowed;
}

.primary-action,
.ghost-action,
.danger-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 36px;
    padding: 8px 13px;
    white-space: nowrap;
}

.primary-action {
    background: var(--lit-teal);
    color: #ffffff;
    border-color: var(--lit-teal);
}

.primary-action:hover:not(:disabled) {
    background: var(--lit-teal-dark);
    border-color: var(--lit-teal-dark);
}

.ghost-action {
    background: rgba(10, 31, 52, 0.92);
    color: #d7f1ff;
    border-color: rgba(126, 200, 236, 0.24);
}

.danger-action {
    background: var(--lit-red);
    color: #ffffff;
    border-color: var(--lit-red);
}

.primary-action:disabled,
.danger-action:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.icon-btn,
.view-toggle button,
.detail-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    padding: 0;
    background: transparent;
    color: #bfefff;
}

.literature-filters {
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 0;
}

.literature-filters select,
.modal-surface select {
    height: 36px;
    min-width: 118px;
    padding: 0 30px 0 10px;
    border: 1px solid rgba(126, 200, 236, 0.24);
    border-radius: 6px;
    background: rgba(10, 31, 52, 0.92);
    color: #d7f1ff;
}

.view-toggle {
    display: inline-flex;
    gap: 3px;
    margin-left: auto;
}

.active-filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    min-height: 28px;
}

.filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 8px;
    border-radius: 6px;
    background: rgba(87, 196, 246, 0.13);
    color: #d7f1ff;
    font-size: 0.76rem;
}

.filter-pill button {
    border: none;
    background: transparent;
    color: inherit;
    cursor: pointer;
}

.literature-results-head {
    justify-content: space-between;
    gap: 12px;
    padding: 6px 2px 12px;
    color: var(--lit-muted);
    font-size: 0.82rem;
}

.document-results {
    position: relative;
    min-height: 420px;
}

.document-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(214px, 1fr));
    gap: 14px;
}

.document-grid.list-view {
    grid-template-columns: 1fr;
}

.paper-card {
    position: relative;
    display: grid;
    grid-template-rows: auto auto auto auto 1fr auto auto;
    gap: 9px;
    min-height: 270px;
    padding: 14px;
    border: 1px solid rgba(126, 200, 236, 0.22);
    border-radius: 6px;
    background: var(--lit-panel);
    color: var(--lit-ink);
    cursor: pointer;
}

.paper-card:hover,
.paper-card.active {
    border-color: var(--lit-teal);
    box-shadow: 0 0 0 1px rgba(71, 216, 255, 0.18), 0 14px 36px rgba(0, 0, 0, 0.28);
}

.paper-card.selected {
    border-color: var(--lit-teal);
}

.paper-card-head,
.paper-card-foot,
.paper-stats,
.paper-tags,
.detail-title-row,
.detail-actions,
.detail-stats,
.note-row,
.history-item,
.tag-editor {
    display: flex;
    align-items: center;
}

.paper-card-head {
    justify-content: space-between;
    gap: 10px;
}

.paper-check {
    width: 16px;
    height: 16px;
    accent-color: var(--lit-teal);
}

.favorite-button {
    border: none;
    background: transparent;
    color: #789;
    cursor: pointer;
}

.favorite-button.active {
    color: var(--lit-amber);
}

.paper-title {
    display: -webkit-box;
    min-height: 50px;
    margin: 0;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    color: #e8edf2;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.18;
}

.paper-meta,
.paper-abstract,
.paper-card-foot,
.detail-meta,
.preview-caption,
.note-body,
.history-meta {
    color: var(--lit-muted);
    font-size: 0.76rem;
    line-height: 1.45;
}

.paper-meta {
    display: grid;
    gap: 2px;
}

.paper-abstract {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    font-style: italic;
}

.paper-tags {
    flex-wrap: wrap;
    gap: 5px;
    min-height: 24px;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
    padding: 3px 7px;
    background: var(--chip-bg, #dbe8ee);
    color: #19404b;
    font-size: 0.68rem;
    font-weight: 700;
}

.paper-stats {
    gap: 11px;
    color: #4e5b68;
    font-size: 0.72rem;
}

.paper-stats span,
.paper-card-foot span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.paper-card-foot {
    justify-content: space-between;
    gap: 8px;
}

.document-grid.list-view .paper-card {
    grid-template-columns: auto minmax(220px, 1fr) minmax(160px, 0.7fr) auto;
    grid-template-rows: auto;
    align-items: center;
    min-height: 96px;
}

.document-grid.list-view .paper-abstract,
.document-grid.list-view .paper-card-foot {
    display: none;
}

.literature-empty,
.literature-loading {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--lit-muted);
    text-align: center;
}

.literature-empty i {
    width: 42px;
    height: 42px;
    color: var(--lit-teal);
}

.literature-empty h3 {
    margin: 0;
    color: var(--lit-ink);
}

.literature-loading span {
    width: 34px;
    height: 34px;
    border: 3px solid #dbe1df;
    border-top-color: var(--lit-teal);
    border-radius: 50%;
    animation: lit-spin 800ms linear infinite;
}

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

.hidden {
    display: none !important;
}

.detail-tabs {
    position: sticky;
    top: 0;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 34px;
    background: rgba(7, 17, 31, 0.94);
    border-bottom: 1px solid var(--lit-line);
}

.detail-tabs button {
    height: 42px;
    background: transparent;
    color: var(--lit-muted);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0;
}

.detail-tabs button.active {
    color: var(--lit-teal-dark);
    border-bottom-color: var(--lit-teal);
}

.detail-content {
    padding: 18px 16px 24px;
}

.detail-placeholder {
    display: grid;
    min-height: 360px;
    place-items: center;
    color: var(--lit-muted);
    text-align: center;
}

.detail-placeholder i {
    width: 40px;
    height: 40px;
    margin-bottom: 10px;
    color: var(--lit-teal);
}

.detail-title-row {
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.detail-title {
    margin: 0;
    color: var(--lit-ink);
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 1.16rem;
    line-height: 1.18;
}

.detail-meta {
    margin-top: 6px;
}

.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 12px 0;
}

.detail-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin: 14px 0;
}

.detail-stat {
    padding: 9px 8px;
    border: 1px solid rgba(126, 200, 236, 0.18);
    border-radius: 6px;
    background: rgba(10, 31, 52, 0.72);
}

.detail-stat span {
    display: block;
    color: var(--lit-muted);
    font-size: 0.66rem;
}

.detail-stat strong {
    display: block;
    margin-top: 4px;
    color: var(--lit-ink);
    font-size: 0.95rem;
}

.detail-actions {
    gap: 8px;
    margin: 12px 0 16px;
}

.detail-actions .primary-action,
.detail-actions .ghost-action {
    flex: 1;
}

.detail-section {
    padding: 14px 0;
    border-top: 1px solid var(--lit-line);
}

.detail-section h3 {
    margin: 0 0 10px;
    color: var(--lit-teal-dark);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.preview-paper {
    display: grid;
    place-items: center;
    min-height: 220px;
    padding: 16px;
    border: 1px solid rgba(126, 200, 236, 0.18);
    background: rgba(10, 31, 52, 0.72);
}

.preview-page {
    width: 190px;
    min-height: 164px;
    padding: 20px 16px;
    background: #f8fbff;
    box-shadow: 0 8px 24px rgba(22, 32, 42, 0.14);
    text-align: center;
}

.preview-page strong {
    display: block;
    color: #2d3946;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 0.82rem;
    line-height: 1.25;
}

.preview-lines {
    display: grid;
    gap: 5px;
    margin-top: 20px;
}

.preview-lines span {
    height: 4px;
    background: #d7dce0;
}

.preview-lines span:nth-child(2n) {
    width: 76%;
    margin: 0 auto;
}

.analysis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.analysis-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 42px;
    background: rgba(10, 31, 52, 0.84);
    border-color: rgba(126, 200, 236, 0.22);
    color: #d7f1ff;
}

.analysis-button:hover {
    border-color: rgba(87, 196, 246, 0.48);
    background: rgba(87, 196, 246, 0.13);
}

.tag-editor {
    align-items: stretch;
    gap: 8px;
}

.tag-editor input {
    flex: 1;
    min-width: 0;
    height: 36px;
    padding: 0 10px;
    border: 1px solid rgba(126, 200, 236, 0.24);
    border-radius: 6px;
    background: rgba(10, 31, 52, 0.92);
    color: var(--lit-ink);
}

.small-action {
    min-height: 36px;
    padding: 0 10px;
    background: rgba(10, 31, 52, 0.92);
    border-color: rgba(126, 200, 236, 0.24);
    color: #d7f1ff;
}

.note-row,
.history-item {
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(126, 200, 236, 0.18);
}

.note-row strong,
.history-item strong {
    display: block;
    color: #d7f1ff;
    font-size: 0.82rem;
}

.history-meta {
    margin-top: 3px;
}

.literature-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: grid;
    place-items: center;
    padding: 18px;
    background: rgba(14, 22, 30, 0.45);
}

.modal-surface {
    width: min(460px, 100%);
    max-height: min(740px, calc(100vh - 36px));
    overflow-y: auto;
    padding: 18px;
    border: 1px solid rgba(126, 200, 236, 0.24);
    border-radius: 8px;
    background: rgba(9, 27, 45, 0.96);
    color: var(--lit-ink);
    box-shadow: 0 24px 70px rgba(12, 18, 24, 0.28);
}

.modal-surface.wide {
    width: min(680px, 100%);
}

.modal-head {
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.modal-head h3 {
    margin: 0;
    font-size: 1rem;
}

.upload-zone {
    position: relative;
    display: grid;
    place-items: center;
    gap: 8px;
    min-height: 180px;
    padding: 18px;
    border: 1px dashed #9ab7b6;
    border-radius: 8px;
    background: rgba(71, 216, 255, 0.11);
    color: #d7f1ff;
    text-align: center;
}

.upload-zone.dragover {
    border-color: var(--lit-teal);
    background: rgba(87, 196, 246, 0.16);
}

.upload-zone i {
    width: 38px;
    height: 38px;
}

.upload-zone input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-queue {
    display: grid;
    gap: 8px;
    margin-top: 12px;
}

.queue-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 90px;
    gap: 10px;
    align-items: center;
    padding: 9px 10px;
    border: 1px solid rgba(126, 200, 236, 0.18);
    border-radius: 6px;
    background: rgba(10, 31, 52, 0.72);
}

.queue-row strong {
    display: block;
    overflow: hidden;
    color: var(--lit-ink);
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.82rem;
}

.queue-row span {
    color: var(--lit-muted);
    font-size: 0.72rem;
}

.progress-track {
    height: 5px;
    overflow: hidden;
    background: rgba(126, 200, 236, 0.16);
    border-radius: 999px;
}

.progress-track span {
    display: block;
    width: var(--progress, 0%);
    height: 100%;
    background: linear-gradient(90deg, var(--lit-teal), var(--lit-blue));
}

.modal-actions {
    justify-content: flex-end;
    gap: 10px;
    margin-top: 16px;
}

.delete-file-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--lit-muted);
    font-size: 0.86rem;
}

/* ===== Files dashboard refresh ===== */
.literature-page {
    grid-template-columns: 216px minmax(420px, 1fr) 310px;
    background: #06131f;
}

.literature-sidebar,
.literature-detail-panel {
    background: rgba(5, 18, 31, 0.94);
}

.literature-sidebar {
    padding: 14px 14px 18px;
}

.literature-main {
    padding: 14px 14px 18px;
    background: linear-gradient(180deg, rgba(8, 30, 50, 0.64), rgba(6, 19, 31, 0.96));
}

.library-panel {
    padding: 13px 0;
}

.overview-metrics {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.metric-card {
    min-width: 0;
    padding: 9px 8px;
    border: 1px solid rgba(126, 200, 236, 0.16);
    border-radius: 6px;
    background: rgba(11, 36, 59, 0.74);
}

.metric-card span:not(.metric-icon) {
    display: block;
    margin-top: 6px;
    overflow: hidden;
    color: var(--lit-muted);
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.68rem;
}

.metric-card strong {
    display: block;
    margin-top: 3px;
    color: var(--lit-ink);
    font-size: 0.88rem;
}

.metric-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: rgba(71, 216, 255, 0.13);
    color: var(--lit-teal);
}

.metric-icon.violet {
    background: rgba(171, 139, 255, 0.14);
    color: #b59cff;
}

.metric-icon.mint {
    background: rgba(100, 228, 186, 0.14);
    color: #70e5bd;
}

.metric-icon.amber {
    background: rgba(242, 184, 75, 0.14);
    color: var(--lit-amber);
}

.metric-icon i {
    width: 15px;
    height: 15px;
}

.literature-hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 118px;
    margin-bottom: 10px;
    overflow: hidden;
    border-bottom: 1px solid rgba(126, 200, 236, 0.18);
}

.hero-copy {
    position: relative;
    z-index: 1;
    min-width: 0;
    padding: 8px 0 18px;
}

.hero-copy span {
    color: var(--lit-teal);
    font-size: 0.72rem;
    font-weight: 800;
}

.hero-copy h1 {
    margin: 8px 0 6px;
    color: #e9f8ff;
    font-size: 1.42rem;
    line-height: 1.15;
    letter-spacing: 0;
}

.hero-copy p {
    margin: 0;
    color: var(--lit-muted);
    font-size: 0.82rem;
}

.hero-visual {
    position: absolute;
    top: 4px;
    right: 20px;
    width: min(42%, 360px);
    height: 104px;
    opacity: 0.82;
}

.hero-visual span {
    position: absolute;
    inset: 18px 18px 8px;
    border: 1px solid rgba(71, 216, 255, 0.22);
    border-radius: 50%;
    transform: rotate(-8deg);
}

.hero-visual span:nth-child(2) {
    inset: 28px 44px 18px;
    border-color: rgba(143, 180, 255, 0.22);
    transform: rotate(9deg);
}

.hero-visual span:nth-child(3) {
    inset: 38px 74px 30px;
    border-color: rgba(100, 228, 186, 0.2);
    transform: rotate(-15deg);
}

.literature-commandbar {
    gap: 10px;
    min-height: 48px;
    padding: 0 0 10px;
}

.global-search {
    height: 42px;
    border-color: rgba(71, 216, 255, 0.44);
    border-radius: 8px;
    background: rgba(8, 25, 43, 0.94);
    box-shadow: 0 0 0 1px rgba(71, 216, 255, 0.12), 0 0 22px rgba(71, 216, 255, 0.12);
}

.global-search i,
.filter-search i {
    flex: 0 0 auto;
    width: 17px;
    height: 17px;
}

.search-kbd {
    flex: 0 0 auto;
    padding: 2px 6px;
    border: 1px solid rgba(71, 216, 255, 0.4);
    border-radius: 5px;
    color: var(--lit-teal);
    font-size: 0.68rem;
    font-weight: 800;
}

.workspace-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 36px;
    padding: 0 10px;
    border: 1px solid rgba(126, 200, 236, 0.22);
    border-radius: 6px;
    background: rgba(10, 31, 52, 0.74);
    color: #d7f1ff;
    cursor: pointer;
    white-space: nowrap;
}

.workspace-chip strong {
    font-size: 0.78rem;
}

.workspace-chip i {
    width: 15px;
    height: 15px;
}

.command-action {
    min-height: 36px;
}

.literature-toolbar {
    min-height: 40px;
    padding: 7px 0;
}

.literature-filters {
    padding: 10px 0;
}

.document-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

.paper-card {
    grid-template-rows: auto auto auto 1fr auto auto;
    min-height: 246px;
    padding: 12px;
    background: rgba(9, 31, 52, 0.86);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

.paper-card-main {
    display: grid;
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
}

.paper-card-copy {
    min-width: 0;
}

.paper-cover {
    position: relative;
    display: grid;
    place-items: center;
    width: 58px;
    height: 78px;
    overflow: hidden;
    border: 1px solid rgba(126, 200, 236, 0.24);
    border-radius: 4px;
    background: #eaf2f5;
    color: #204252;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.22);
}

.paper-cover i {
    width: 20px;
    height: 20px;
    margin-bottom: 14px;
    opacity: 0.8;
}

.paper-cover span {
    position: absolute;
    right: 5px;
    bottom: 5px;
    max-width: calc(100% - 10px);
    overflow: hidden;
    color: #3b5563;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.58rem;
    font-weight: 800;
}

.paper-cover.images {
    background: linear-gradient(135deg, #dff7ef, #d8e8ff);
}

.paper-cover.audio,
.paper-cover.videos {
    background: linear-gradient(135deg, #efe7ff, #d9efff);
}

.paper-cover.archives {
    background: linear-gradient(135deg, #fff0cf, #e5f5ea);
}

.paper-cover-lines {
    position: absolute;
    right: 8px;
    bottom: 18px;
    left: 8px;
    display: grid;
    gap: 3px;
}

.paper-cover-lines b {
    display: block;
    height: 3px;
    background: rgba(42, 67, 82, 0.22);
}

.paper-cover-lines b:nth-child(2) {
    width: 76%;
}

.paper-cover-lines b:nth-child(3) {
    width: 54%;
}

.paper-title {
    min-height: 42px;
    font-size: 0.86rem;
    line-height: 1.28;
    -webkit-line-clamp: 3;
}

.paper-meta {
    margin-top: 5px;
}

.paper-abstract {
    -webkit-line-clamp: 3;
}

.document-grid.list-view .paper-card {
    grid-template-columns: 38px minmax(280px, 1fr) minmax(150px, 0.55fr) minmax(190px, 0.7fr);
    gap: 12px;
    min-height: 92px;
}

.document-grid.list-view .paper-card-main {
    grid-template-columns: 46px minmax(0, 1fr);
}

.document-grid.list-view .paper-cover {
    width: 46px;
    height: 60px;
}

.detail-panel-head {
    position: sticky;
    top: 0;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 13px 14px 10px;
    background: rgba(5, 18, 31, 0.96);
    border-bottom: 1px solid rgba(126, 200, 236, 0.16);
}

.detail-panel-head span {
    display: block;
    color: var(--lit-muted);
    font-size: 0.7rem;
}

.detail-panel-head strong {
    display: block;
    max-width: 230px;
    margin-top: 4px;
    overflow: hidden;
    color: var(--lit-ink);
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.82rem;
}

.detail-tabs {
    top: 55px;
    grid-template-columns: 1fr 1fr 1fr;
}

.detail-title {
    font-size: 1.02rem;
}

.detail-stats {
    grid-template-columns: repeat(2, 1fr);
}

.preview-paper {
    min-height: 310px;
    padding: 10px;
    overflow: hidden;
    border-radius: 8px;
    background: rgba(4, 12, 22, 0.72);
}

.preview-frame,
.preview-image,
.preview-video {
    width: 100%;
    border: none;
    border-radius: 5px;
    background: #ffffff;
}

.preview-frame {
    height: 340px;
}

.preview-image {
    display: block;
    max-height: 360px;
    object-fit: contain;
}

.preview-video {
    max-height: 320px;
}

.preview-loading-card,
.preview-fallback,
.preview-audio-shell {
    display: grid;
    place-items: center;
    gap: 8px;
    min-height: 260px;
    color: var(--lit-muted);
    text-align: center;
}

.preview-loading-card i {
    width: 28px;
    height: 28px;
    color: var(--lit-teal);
    animation: lit-spin 900ms linear infinite;
}

.preview-loading-card strong,
.preview-fallback strong {
    max-width: 100%;
    overflow: hidden;
    color: var(--lit-ink);
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.86rem;
}

.preview-fallback i,
.preview-audio-shell > i {
    width: 34px;
    height: 34px;
    color: var(--lit-teal);
}

.preview-audio-shell audio {
    width: 100%;
}

@media (max-width: 980px) {
    .literature-page {
        grid-template-columns: 210px minmax(0, 1fr);
    }

    .literature-detail-panel {
        position: fixed;
        top: 70px;
        right: 0;
        bottom: 0;
        width: min(360px, 96vw);
        z-index: 900;
        border-left: 1px solid var(--lit-line);
        box-shadow: -18px 0 50px rgba(22, 32, 42, 0.18);
        transform: translateX(100%);
        transition: transform 200ms ease;
    }

    .literature-detail-panel.open {
        transform: translateX(0);
    }
}

@media (max-width: 840px) {
    .literature-page {
        display: block;
    }

    .literature-sidebar {
        display: none;
    }

    .literature-main {
        border-right: none;
    }

    .literature-commandbar {
        flex-wrap: wrap;
    }

    .workspace-select,
    .global-search,
    .primary-action[data-open-upload] {
        width: 100%;
    }

    .literature-toolbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .document-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .literature-main {
        padding: 12px;
    }

    .toolbar-actions {
        width: 100%;
    }

    .toolbar-actions button span {
        display: none;
    }

    .document-grid.list-view .paper-card {
        grid-template-columns: auto minmax(0, 1fr) auto;
    }

    .document-grid.list-view .paper-tags {
        display: none;
    }

    .detail-stats {
        grid-template-columns: 1fr 1fr;
    }
}