:root {
    /* Light theme */
    --bg-color: #f5f5f5;
    --text-color: #2c3e50;
    --table-bg: #ffffff;
    --table-border: #d0d0d0;
    --table-header-bg: #2c3e50;
    --table-header-text: #ffffff;
    --table-cell-bg: #ffffff;
    --table-cell-text: #2c3e50;
    --table-header-border: #34495e;
    --grounding-highlight: #ff6b35;
    --grounding-highlight-bg: rgba(255, 107, 53, 0.25);
}
 

:root.dark-theme {
   /* Dark theme (default) */
    --bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    --table-bg: #2a2a2a;
    --table-border: #3a3a3a;
    --table-header-bg: #1e293b;
    --table-header-text: #ffffff;
    --table-cell-bg: #2a2a2a;
    --table-cell-text: #e0e0e0;
    --table-cell-text-highlite: gold;
    --table-header-border: #475569;
    --grounding-highlight: #ff6b35;
    --grounding-highlight-bg: rgba(255, 107, 53, 0.25);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 20px;
    margin: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

button {
    cursor: pointer;
}

.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px 20px;
    background-color: var(--table-header-bg);
    color: var(--table-header-text);
    border: 1px solid var(--table-border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    opacity: 0.8;
}

.ttable-container {
    width: 50vw;
}

.timeline-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--table-bg);
    border: 1px solid var(--table-border);
}

.timeline-table thead {
    background-color: var(--table-header-bg);
}

.timeline-table th {
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--table-header-text);
    border: 1px solid var(--table-header-border);
}

.timeline-table th[colspan="3"] {
    text-align: center;
}

.timeline-table tbody tr {
    border: 1px solid var(--table-border);
}

.timeline-table td {
    padding: 8px 12px;
    font-size: 13px;
    color: var(--table-cell-text);
    border: 1px solid var(--table-border);
    background-color: var(--table-cell-bg);
}

.timeline-table td[colspan] {
    text-align: center;
}

.btn-add-entry {
    opacity: 1 !important;
}



.timeline-table .data-cell:hover {
    cursor: pointer;
    color: var(--table-cell-text-highlite);
}

.timeline-table .data-cell.selected {
    outline: 2px solid var(--grounding-highlight);
    outline-offset: -2px;
    background-color: var(--grounding-highlight-bg);
}

.timeline-table .data-cell:focus-visible {
    outline: 2px solid var(--grounding-highlight);
    outline-offset: -2px;
}

.timeline-table td.draft {
    background-image: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(0, 0, 0, 0.08) 10px,
        rgba(0, 0, 0, 0.08) 20px
    );
}

:root.dark-theme .timeline-table td.draft {
    background-image: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255, 255, 255, 0.08) 10px,
        rgba(255, 255, 255, 0.08) 20px
    );
}

.timeline-table td.invalid {
    outline: 2px solid rgba(255, 100, 100, 0.6);
    outline-offset: -2px;
}

:root.dark-theme .timeline-table td.invalid {
    outline: 2px solid rgba(255, 100, 100, 0.7);
    outline-offset: -2px;
}

.timeline-table td:not(.actions-cell):not(.add-entry-cell):not(.research-cell) button {
    border: 0;
    background-color: transparent;
    float: right;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.timeline-table td:not(.actions-cell):not(.research-cell):hover button {
    opacity: 1;
}

.timeline-table td:not(.actions-cell):not(.add-entry-cell):not(.research-cell) button:not([disabled]):hover {
    background-color: rgba(128, 128, 128, 0.2);
    border-radius: 4px;
}

.timeline-table td:not(.actions-cell) button[title="Show/Hide Details"]:hover {
    transform: scale(1.1);
}
.timeline-table td.add-entry-cell {
    text-align: center;
    background-color: var(--table-cell-bg);
}

.timeline-table td.add-entry-cell button.btn-add-entry {
    opacity: 1;
}

.timeline-table td:not(.actions-cell) button svg {
    width: 14px;
    height: 14px;
}

.timeline-table .edit-indicator {
    float: right;
    margin-right: 4px;
    opacity: 1;
    cursor: pointer;
    border: none;
    background: transparent;
    padding: 0;
    anchor-name: --edit-indicator;
}

.timeline-table .edit-indicator svg {
    width: 16px;
    height: 16px;
}

/* Edit History Popover Styles */
.edit-history-popover {
    background-color: var(--table-bg);
    color: var(--text-color);
    border: 1px solid var(--table-border);
    border-radius: 6px;
    padding: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    font-size: 13px;
    margin: 0;
}

.edit-history-header {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
    border-bottom: 1px solid var(--table-border);
    padding-bottom: 6px;
}

.edit-history-item {
    padding: 6px 0;
    line-height: 1.4;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.edit-history-text {
    flex: 1;
}

.edit-undo-btn {
    background: transparent;
    border: 1px solid var(--table-border);
    border-radius: 4px;
    padding: 4px 6px;
    cursor: pointer;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.edit-undo-btn:hover {
    background-color: var(--table-border);
}

.edit-undo-btn svg {
    width: 14px;
    height: 14px;
}

.edit-history-item:not(:last-child) {
    border-bottom: 1px solid var(--table-border);
}

/* Validation Indicator Styles */
.timeline-table .validation-indicator {
    float: right;
    color: #f44336;
    margin-right: 4px;
    opacity: 1;
    cursor: pointer;
    border: none;
    background: transparent;
    padding: 0;
    anchor-name: --validation-indicator;
}

.timeline-table .validation-indicator svg {
    width: 16px;
    height: 16px;
}

/* Validation Popover Styles */
.validation-popover {
    background-color: var(--table-bg);
    color: var(--text-color);
    border: 2px solid #f44336;
    border-radius: 6px;
    padding: 12px;
    box-shadow: 0 4px 12px rgba(244, 67, 54, 0.3);
    max-width: 450px;
    font-size: 13px;
    margin: 0;
}

.validation-header {
    font-weight: 600;
    margin-bottom: 10px;
    color: #f44336;
    border-bottom: 2px solid #f44336;
    padding-bottom: 6px;
}

.validation-error-item {
    padding: 8px;
    margin: 6px 0;
    border-radius: 4px;
    border-left: 4px solid #f44336;
    background-color: rgba(244, 67, 54, 0.1);
}

.validation-error-item.severity-warning {
    border-left-color: #ff9800;
    background-color: rgba(255, 152, 0, 0.1);
}

.validation-error-code {
    font-weight: 700;
    font-size: 11px;
    color: #f44336;
    margin-bottom: 4px;
}

.validation-error-item.severity-warning .validation-error-code {
    color: #ff9800;
}

.validation-error-text strong {
    display: block;
    margin-bottom: 4px;
    color: var(--text-color);
}

.validation-error-text p {
    margin: 0;
    font-size: 12px;
    color: var(--text-color);
    opacity: 0.9;
}

.validation-error-item:not(:last-child) {
    border-bottom: 1px solid var(--table-border);
    padding-bottom: 10px;
}

.timeline-table td.error {
    border-color: red;
}

.timeline-table td.warning {
    border-color: yellow;
}

/* Collapsible Research Row */
.research-row {
    display: none !important;
}

.research-row.visible {
    display: table-row !important;
}

.research-cell {
    padding: 0 !important;
    background-color: var(--table-bg);
    border-top: 3px solid var(--grounding-highlight);
    height: 0;
    overflow: hidden;
}

.research-row.visible .research-cell {
    height: auto;
}

.research-panel {
    padding: 0;
    margin: 0;
    background-color: var(--table-bg);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.3s ease;
}

.research-panel.expanded {
    padding: 20px;
    max-height: 600px;
    overflow-y: auto;
    opacity: 1;
}

.research-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--table-border);
}

.research-header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.research-header h3 {
    margin: 0;
    color: var(--text-color);
    font-size: 18px;
}

.field-path-display {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text-color);
    padding: 4px 12px;
    background-color: var(--table-cell-bg);
    border-radius: 4px;
    border: 1px solid var(--table-border);
}

.field-path-display strong {
    color: var(--grounding-highlight);
}

.close-research-btn {
    background: transparent;
    border: 1px solid var(--table-border);
    color: var(--text-color);
    font-size: 20px;
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 4px;
    transition: all 0.2s;
}

.close-research-btn:hover {
    background-color: var(--table-border);
}

/* Research Content Layout */
.research-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 20px;
    align-items: start;
}

/* Document List Styles */
.doc-list {
    background-color: var(--table-cell-bg);
    border: 1px solid var(--table-border);
    border-radius: 6px;
    padding: 10px;
    max-height: 500px;
    overflow-y: auto;
}

.doc-list-header {
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--table-border);
}

.doc-list-header h4 {
    margin: 0;
    font-size: 14px;
    color: var(--text-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.doc-list-header.no-groundings {
    background-color: rgba(255, 200, 100, 0.1);
    padding: 12px;
    border-radius: 4px;
    border: 1px solid rgba(255, 200, 100, 0.3);
    margin-bottom: 15px;
}

.doc-list-header.no-groundings h4 {
    color: rgba(255, 150, 50, 0.9);
    margin-bottom: 4px;
}

.doc-list-header.no-groundings p {
    margin: 0;
    font-size: 12px;
    color: var(--text-color);
    opacity: 0.8;
}

.doc-card {
    background-color: var(--table-bg);
    border: 1px solid var(--table-border);
    border-radius: 4px;
    padding: 12px;
    margin-bottom: 10px;
    transition: all 0.2s ease;
}

.doc-card:hover {
    border-color: var(--grounding-highlight);
    background-color: var(--table-cell-bg);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transform: translateX(2px);
}

.doc-card.selected {
    border-color: var(--grounding-highlight);
    border-width: 2px;
    background-color: var(--grounding-highlight-bg);
    box-shadow: 0 3px 8px rgba(255, 107, 53, 0.3);
}

.doc-card.has-grounding {
    border-left: 3px solid var(--grounding-highlight);
}

.doc-card.non-grounded {
    opacity: 0.75;
    background-color: var(--table-bg);
}

.doc-card.non-grounded:hover {
    opacity: 1;
}

.grounding-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    color: var(--grounding-highlight);
    font-weight: 600;
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px solid var(--table-border);
}

.grounding-badge i {
    width: 12px;
    height: 12px;
}

.doc-actions {
    display: flex;
    gap: 6px;
    margin-top: 8px;
}

.view-doc-btn {
    padding: 6px 10px;
    background-color: var(--table-cell-bg);
    color: var(--text-color);
    border: 1px solid var(--table-border);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.view-doc-btn:hover {
    background-color: var(--table-bg);
    border-color: var(--grounding-highlight);
    color: var(--grounding-highlight);
}

.view-doc-btn i {
    width: 14px;
    height: 14px;
    color: var(--text-color);
}

.add-grounding-btn {
    flex: 1;
    padding: 6px 10px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: all 0.2s ease;
}

.add-grounding-btn:hover {
    background-color: var(--grounding-highlight);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.add-grounding-btn:active {
    transform: translateY(0);
}

.add-grounding-btn i {
    width: 14px;
    height: 14px;
}

.doc-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 8px;
    gap: 8px;
}

.doc-type {
    font-size: 11px;
    font-weight: bold;
    color: var(--grounding-highlight);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    flex: 1;
}

.doc-date {
    font-size: 10px;
    color: var(--text-color);
    opacity: 0.7;
    white-space: nowrap;
}

.doc-description {
    font-size: 13px;
    color: var(--text-color);
    margin-bottom: 8px;
    line-height: 1.4;
}

.doc-issuer {
    font-size: 11px;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 4px;
}

.doc-issuer strong {
    font-weight: 600;
}

.doc-esns {
    font-size: 11px;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 4px;
}

.doc-esns strong {
    font-weight: 600;
}

.doc-pages {
    font-size: 10px;
    color: var(--text-color);
    opacity: 0.6;
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px solid var(--table-border);
}

.show-more-docs-btn {
    width: 100%;
    padding: 8px 12px;
    margin-top: 8px;
    background-color: var(--table-bg);
    border: 1px solid var(--table-border);
    border-radius: 4px;
    color: var(--text-color);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.show-more-docs-btn:hover {
    background-color: var(--table-cell-bg);
    border-color: var(--grounding-highlight);
    color: var(--grounding-highlight);
}

.show-more-docs-btn:active {
    transform: translateY(1px);
}

.no-docs {
    text-align: center;
    padding: 20px;
    color: var(--text-color);
    opacity: 0.6;
    font-style: italic;
}

/* PDF Viewer Styles */
.pdf-viewer-container {
    background-color: var(--table-bg);
}

.grounding-navigation {
    background-color: #e8e8e8;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dark-theme .grounding-navigation {
    background-color: #3a3a3a;
    border-color: #555;
}

.grounding-controls {
    display: flex;
    gap: 15px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.grounding-controls > span {
    color: var(--text-color);
    font-weight: 500;
}

.grounding-controls button {
    padding: 8px 16px;
    background-color: var(--grounding-highlight);
    color: white;
    border: 1px solid var(--grounding-highlight);
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    opacity: 1;
    transition: all 0.2s ease;
}

.grounding-controls button:hover:not(:disabled) {
    opacity: 0.85;
    transform: translateY(-1px);
}

.grounding-controls button:disabled {
    background-color: #555;
    border-color: #666;
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.pdf-doc-info {
    color: var(--text-color);
    font-size: 14px;
    margin-bottom: 10px;
    padding: 8px 12px;
    background-color: var(--table-cell-bg);
    border: 1px solid var(--table-border);
    border-radius: 4px;
}

.pdf-doc-info strong {
    color: var(--grounding-highlight);
}

.pdf-controls {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.pdf-controls button {
    padding: 8px 16px;
    background-color: transparent !important;
    color: var(--text-color) !important;
    border: 1px solid var(--table-border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    opacity: 1 !important;
    transition: all 0.2s ease;
}

.pdf-controls button:hover:not(:disabled) {
    opacity: 0.85;
    transform: translateY(-1px);
}

.pdf-controls button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#page-info {
    color: var(--text-color);
    font-size: 14px;
    font-weight: 500;
}

.canvas-wrapper {
    position: relative;
    display: inline-block;
    border: 1px solid var(--table-border);
    background-color: white;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    max-width: 100%;
    overflow: auto;
}

.canvas-wrapper canvas {
    display: block;
}

#pdf-canvas,
[id^="pdf-canvas-"] {
    display: block;
}

#bounds-canvas,
[id^="bounds-canvas-"] {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
}

/* Dialog styles */
#add-entry-dialog {
    border: 2px solid var(--table-border);
    border-radius: 8px;
    padding: 20px;
    background-color: var(--table-bg);
    color: var(--text-color);
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    width: 400px;
}

#add-entry-dialog::backdrop {
    background-color: rgba(0, 0, 0, 0.5);
}

#add-entry-dialog h2 {
    margin-top: 0;
    color: var(--text-color);
}

#add-entry-form fieldset {
    border: 1px solid var(--table-border);
    border-radius: 4px;
    padding: 15px;
    margin-bottom: 15px;
}

#add-entry-form legend {
    font-weight: 600;
    color: var(--table-header-bg);
    padding: 0 5px;
}

#add-entry-form label {
    display: block;
    margin-bottom: 10px;
    font-size: 14px;
}

#add-entry-form input {
    display: block;
    width: 95%;
    padding: 8px;
    margin-top: 4px;
    border: 1px solid var(--table-border);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
}

#add-entry-form input:focus {
    outline: 2px solid var(--grounding-highlight);
    outline-offset: 2px;
}

.dialog-buttons {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

.dialog-buttons button {
    padding: 10px 20px;
    border: 1px solid var(--table-border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
}

.dialog-buttons button[type="submit"] {
    background-color: var(--grounding-highlight);
    color: white;
    border-color: var(--grounding-highlight);
}

.dialog-buttons button[type="button"] {
    background-color: var(--table-header-bg);
    color: var(--table-header-text);
}

.dialog-buttons button:hover {
    opacity: 0.85;
}

/* Responsive design */
@media (max-width: 768px) {
    .timeline-table {
        font-size: 11px;
    }
    
    .timeline-table th,
    .timeline-table td {
        padding: 6px 8px;
    }
}

.table-actions {
    margin-top: 20px;
    display: flex;
    gap: 10px;
    justify-content: flex-start;
}

.btn-sign {
    padding: 10px 20px;
    background-color: var(--table-header-bg);
    color: var(--table-header-text);
    border: 1px solid var(--table-border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-sign:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-sign svg {
    width: 16px;
    height: 16px;
}

.btn-download-csv {
    padding: 10px 20px;
    background-color: var(--table-header-bg);
    color: var(--table-header-text);
    border: 1px solid var(--table-border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-download-csv svg {
    width: 16px;
    height: 16px;
}

.btn-download-csv:hover,
.btn-sign:hover {
    opacity: 0.8;
}