/**
 * Biostatistics Visualization Styles
 *
 * Contains: Control panel, file upload, chart types, options, chart area, data viewer
 * Used by: biostat.js, db-parser.js
 */

/* ===== Control Panel ===== */
.control-panel {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-subtle);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
    max-height: calc(100vh - var(--header-height));
}

.panel-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-title svg {
    stroke: var(--accent-blue);
}

/* ===== Data Selector Card ===== */
.data-selector-card {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease-out;
    text-align: left;
    font-family: var(--font-sans);
}

.data-selector-card:hover {
    border-color: var(--accent-blue);
    background: var(--bg-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.data-selector-card:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.data-selector-card.has-data {
    border-color: var(--accent-green);
    background: rgba(34, 197, 94, 0.08);
}

.data-selector-card.has-data:hover {
    background: rgba(34, 197, 94, 0.12);
    border-color: var(--accent-green);
}

.data-selector-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    flex-shrink: 0;
}

.data-selector-card-icon svg {
    color: var(--accent-blue);
}

.data-selector-card.has-data .data-selector-card-icon {
    background: rgba(34, 197, 94, 0.15);
}

.data-selector-card.has-data .data-selector-card-icon svg {
    color: var(--accent-green);
}

.data-selector-card-content {
    flex: 1;
    min-width: 0;
}

.data-selector-card-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.data-selector-card-info {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.125rem;
}

.data-selector-card-arrow {
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform 0.2s;
}

.data-selector-card:hover .data-selector-card-arrow {
    color: var(--accent-blue);
    transform: translateX(2px);
}

/* ===== Data Selector Modal ===== */
.modal-data-selector {
    width: 90%;
    max-width: 560px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.modal-data-selector .modal-body {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    padding: 0;
}

.data-selector-summary {
    padding: 0.875rem 1.25rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-subtle);
    background: var(--bg-tertiary);
}

.data-selector-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
}

.data-selector-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
    gap: 1rem;
}

.data-selector-empty svg {
    opacity: 0.3;
}

.data-selector-item {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s ease-out;
    margin-bottom: 0.5rem;
}

.data-selector-item:last-child {
    margin-bottom: 0;
}

.data-selector-item:hover:not(.disabled) {
    border-color: var(--accent-blue);
    background: var(--bg-hover);
    transform: translateX(2px);
}

.data-selector-item.selected {
    border-color: var(--accent-green);
    background: rgba(34, 197, 94, 0.1);
}

.data-selector-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.data-selector-item.expired {
    border-color: rgba(239, 68, 68, 0.3);
}

.data-selector-item-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    flex-shrink: 0;
}

.data-selector-item-icon svg {
    width: 18px;
    height: 18px;
    color: var(--accent-blue);
}

.data-selector-item.expired .data-selector-item-icon {
    background: rgba(239, 68, 68, 0.1);
}

.data-selector-item.expired .data-selector-item-icon svg {
    color: var(--accent-red);
}

.data-selector-item-content {
    flex: 1;
    min-width: 0;
}

.data-selector-item-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.data-selector-item.expired .data-selector-item-name {
    text-decoration: line-through;
    color: var(--text-muted);
}

.data-selector-item-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.data-selector-item-owner {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.data-selector-item-expiry {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.data-selector-item.expired .data-selector-item-expiry {
    color: var(--accent-red);
}

.data-selector-item-badge {
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 500;
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

/* Data Loading Spinner */
.data-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.data-loading .spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-subtle);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Data Summary */
.data-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

/* View Data Button (after upload) */
.btn-view-data {
    width: 100%;
    margin-top: 0.75rem;
    justify-content: center;
}

.summary-item {
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 0.75rem;
    text-align: center;
}

.summary-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.summary-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--accent-blue-light);
}

/* ===== Generate Button ===== */
.btn-generate {
    background: linear-gradient(135deg, var(--accent-orange), #fb923c);
    color: white;
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    margin-top: auto;
}

.btn-generate:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(249, 115, 22, 0.4);
}

.btn-generate:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ===== Chart Area ===== */
.chart-area {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: var(--bg-primary);
}

.chart-container {
    flex: 1;
    min-height: 500px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.chart-placeholder {
    text-align: center;
    color: var(--text-muted);
}

.chart-placeholder svg {
    stroke: var(--border-subtle);
    margin-bottom: 1rem;
}

.chart-placeholder p {
    margin: 0.25rem 0;
}

.chart-placeholder .placeholder-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.chart-output {
    width: 100%;
    height: 100%;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-output svg {
    max-width: 100%;
    max-height: 100%;
    height: auto;
}

/* Chart Actions */
.chart-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

/* Chart Metadata */
.chart-metadata {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 1rem;
}

.chart-metadata h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.metadata-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.5rem;
    font-size: 0.8rem;
}

.metadata-content .meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.metadata-content .meta-label {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.metadata-content .meta-value {
    color: var(--text-primary);
    font-family: var(--font-mono);
}

/* ===== Data Viewer ===== */
.data-viewer-body {
    display: flex;
    height: 100%;
}

.data-viewer-sidebar {
    width: 220px;
    background: linear-gradient(180deg, var(--bg-tertiary) 0%, #1f1f1f 100%);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.data-viewer-sidebar h4 {
    padding: 1rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.data-viewer-sidebar h4::before {
    content: '';
    width: 3px;
    height: 12px;
    background: var(--accent-blue);
    border-radius: 2px;
}

.table-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
}

/* Custom scrollbar for table list */
.table-list::-webkit-scrollbar {
    width: 6px;
}

.table-list::-webkit-scrollbar-track {
    background: transparent;
}

.table-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.table-list::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

.table-list-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-family: var(--font-mono);
    transition: all 0.2s ease-out;
    border-left: 3px solid transparent;
    margin-bottom: 2px;
    position: relative;
}

.table-list-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-left-color: rgba(59, 130, 246, 0.4);
    padding-left: calc(1rem + 2px);
}

.table-list-item.active {
    background: rgba(59, 130, 246, 0.12);
    color: var(--accent-blue-light);
    border-left-color: var(--accent-blue);
    box-shadow: inset 0 0 20px rgba(59, 130, 246, 0.05);
}

.table-list-item svg {
    flex-shrink: 0;
    opacity: 0.5;
    transition: all 0.2s ease-out;
}

.table-list-item:hover svg,
.table-list-item.active svg {
    opacity: 1;
}

.table-list-item.active svg {
    color: var(--accent-blue);
    filter: drop-shadow(0 0 4px rgba(59, 130, 246, 0.5));
}

.data-viewer-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
}

.data-viewer-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 1.25rem;
    background: rgba(15, 15, 15, 0.8);
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
    backdrop-filter: blur(4px);
}

.table-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.table-info::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.9); }
}

.pagination {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    background: var(--bg-tertiary);
    padding: 0.375rem 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
}

.pagination span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    min-width: 70px;
    text-align: center;
    padding: 0 0.5rem;
}

.data-table-wrapper {
    flex: 1;
    overflow: auto;
    padding: 1.25rem;
    background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(15, 15, 15, 0.95) 100%);
}

/* Custom scrollbar for data table */
.data-table-wrapper::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

.data-table-wrapper::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 5px;
}

.data-table-wrapper::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 5px;
    border: 2px solid var(--bg-secondary);
}

.data-table-wrapper::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

.data-table-wrapper::-webkit-scrollbar-corner {
    background: var(--bg-secondary);
}

.data-table-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    gap: 1.25rem;
}

.data-table-placeholder svg {
    opacity: 0.2;
    color: var(--accent-blue);
}

.data-table-placeholder p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.data-table-placeholder .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-subtle);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 0 0 1px var(--border-subtle);
}

.data-table th,
.data-table td {
    padding: 0.625rem 0.875rem;
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
    border-right: 1px solid var(--border-subtle);
}

.data-table th:last-child,
.data-table td:last-child {
    border-right: none;
}

.data-table th {
    background: linear-gradient(180deg, var(--bg-tertiary) 0%, #202020 100%);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    position: sticky;
    top: 0;
    z-index: 2;
    white-space: nowrap;
}

.data-table th::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
    opacity: 0.3;
}

.data-table tbody tr {
    transition: background 0.15s ease-out;
}

.data-table tbody tr:nth-child(even) td {
    background: rgba(255, 255, 255, 0.02);
}

.data-table tbody tr:nth-child(odd) td {
    background: var(--bg-secondary);
}

.data-table tbody tr:hover td {
    background: rgba(59, 130, 246, 0.08);
}

.data-table td {
    color: var(--text-primary);
    white-space: nowrap;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.data-table td.number {
    text-align: right;
    color: var(--accent-blue-light);
    font-variant-numeric: tabular-nums;
}

.data-table td.null {
    color: var(--text-muted);
    font-style: italic;
    opacity: 0.6;
}

/* ===== Reduced Motion Support ===== */
@media (prefers-reduced-motion: reduce) {
    .table-list-item,
    .data-table tbody tr {
        transition: none;
    }

    @keyframes pulse-dot {
        0%, 100% { opacity: 1; }
    }

    .data-table-placeholder .spinner {
        animation: none;
        border-top-color: var(--accent-blue);
        border-right-color: var(--accent-blue);
    }
}