/* ASIN Engine — specific styles on top of asin_to_keyword.css */

/* Toolbar card (matches index.html Campaign Data layout) */
.table-section.engine-data-toolbar {
    margin-bottom: var(--spacing-lg, 16px);
    /* Default .table-section is overflow:hidden — clips ASIN/keyword dropdown panels */
    overflow: visible;
}

.engine-data-toolbar .engine-toolbar-filters {
    margin: 0;
    border: none;
    border-radius: 0;
    border-top: 1px solid var(--border-primary);
    box-shadow: none;
    background: var(--bg-secondary, #f8fafc);
    overflow: visible;
}

.engine-data-toolbar .table-controls {
    gap: 12px;
}

.engine-toolbar-status {
    color: var(--text-secondary);
    font-size: 13px;
}

.engine-toolbar-arrange {
    margin-left: auto;
    flex-shrink: 0;
}

.engine-filters-grid {
    display: grid;
    gap: 16px;
    align-items: start;
    width: 100%;
    overflow: visible;
}

/* Three filters in one row on wide layouts; one column on narrow (prevents ultra-wide triggers) */
@media (min-width: 960px) {
    .engine-data-toolbar .engine-filters-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 959px) {
    .engine-data-toolbar .engine-filters-grid {
        grid-template-columns: 1fr;
    }

    .engine-data-toolbar .engine-asin-panel {
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }
}

.engine-filter-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
    overflow: visible;
}

.engine-filter-item .engine-asin-dropdown {
    width: 100%;
}

.engine-filter-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.engine-data-toolbar .engine-period-select.filter-dropdown {
    width: 100%;
    min-width: 0;
    font-weight: 600;
}

/* Pagination sits below the scrollable table */
.engine-table-pagination {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 14px 16px 16px;
    border-top: 1px solid var(--border-primary);
    background: #f8fafc;
}

.engine-table-pagination-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.engine-table-pagination .engine-pagination-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
}

.engine-page-numbers {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.engine-page-num {
    min-width: 36px;
    height: 34px;
    padding: 0 8px;
    border: 1.5px solid var(--border-primary);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}

.engine-page-num:hover:not(.is-active) {
    border-color: var(--primary);
    color: var(--primary);
}

.engine-page-num.is-active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    cursor: default;
}

.engine-page-ellipsis {
    padding: 0 4px;
    color: var(--text-secondary);
    font-weight: 700;
    user-select: none;
}

.engine-page-edge {
    height: 34px;
    padding: 0 14px;
    border: 1.5px solid var(--border-primary);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.12s ease, color 0.12s ease;
}

.engine-page-edge:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.engine-page-edge:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.engine-page-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.btn-arrange {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--white);
    border: 1.5px solid var(--primary);
    color: var(--primary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 100px;
    justify-content: center;
}

.btn-arrange:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-arrange .material-icons {
    font-size: 17px;
}

.btn-arrange[data-direction="desc"] .material-icons {
    transform: scaleY(-1);
}

.engine-table-section {
    background: var(--white);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.engine-table-wrapper {
    max-height: calc(100vh - 440px);
    min-height: 200px;
    overflow: auto;
}

/* Multi-select ASIN filter (same row as other controls) */
.engine-asin-filter-group {
    position: relative;
}

.engine-asin-dropdown {
    position: relative;
    min-width: 220px;
}

.engine-asin-trigger {
    position: relative;
    width: 100%;
    text-align: left;
    padding: 8px 36px 8px 12px;
    border: 1.5px solid var(--border-primary);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    background: var(--white);
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.engine-asin-trigger::after {
    content: '';
    position: absolute;
    right: 12px;
    top: 50%;
    margin-top: -3px;
    border: 5px solid transparent;
    border-top-color: var(--text-secondary);
    pointer-events: none;
}

.engine-asin-trigger:hover,
.engine-asin-trigger:focus {
    outline: none;
    border-color: var(--primary);
}

.engine-asin-panel {
    position: absolute;
    left: 0;
    top: calc(100% + 6px);
    z-index: 40;
    width: min(340px, 92vw);
    max-height: 320px;
    display: flex;
    flex-direction: column;
    background: var(--white);
    border: 1.5px solid var(--border-primary);
    border-radius: var(--radius-sm);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}

/* Author `display:flex` wins over UA `[hidden]` unless we force hide. */
.engine-asin-panel[hidden] {
    display: none !important;
}

/* Above rank chart / table below toolbar (default 40 is not enough once toolbar overflow is visible) */
.engine-data-toolbar .engine-asin-panel {
    z-index: 120;
}

.engine-asin-panel-head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--gray-200);
}

.engine-asin-panel-head .material-icons {
    font-size: 20px;
    color: var(--primary);
}

.engine-asin-search {
    flex: 1;
    min-width: 0;
    padding: 8px 10px;
    border: 1.5px solid var(--primary);
    border-radius: var(--radius-sm);
    font-size: 13px;
}

.engine-asin-search:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.engine-asin-list {
    overflow-y: auto;
    padding: 6px 0;
    max-height: 220px;
}

.engine-asin-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    font-size: 13px;
    cursor: pointer;
    border-bottom: 1px solid var(--gray-100);
}

.engine-asin-row:hover {
    background: #f8fafc;
}

.engine-asin-row input {
    accent-color: var(--primary);
}

.engine-asin-row-all {
    font-weight: 600;
}

.engine-asin-empty {
    padding: 12px 14px;
    font-size: 13px;
    color: var(--text-muted);
}

.engine-asin-panel-foot {
    padding: 8px 12px;
    border-top: 1px solid var(--gray-200);
}

.engine-asin-clear {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 0;
}

.engine-asin-clear:hover {
    text-decoration: underline;
}

/* Keyword multi-select (same interaction as ASIN; wider panel + wrapped text) */
.engine-keyword-dropdown {
    min-width: 280px;
}

.engine-keyword-dropdown .engine-asin-panel {
    width: min(440px, 92vw);
}

.engine-keyword-dropdown .engine-asin-list {
    max-height: 280px;
}

.engine-keyword-dropdown .engine-asin-row span {
    white-space: normal;
    word-break: break-word;
    line-height: 1.35;
}

/* Rank trend chart (above table) */
.engine-rank-chart-section {
    background: var(--white);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    padding: 18px 20px 14px;
    margin-bottom: 16px;
}

.engine-rank-chart-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.engine-rank-chart-titles {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.engine-rank-chart-icon {
    font-size: 28px;
    color: var(--primary);
    margin-top: 2px;
}

.engine-rank-chart-title {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.engine-rank-chart-sub {
    margin: 4px 0 0;
    font-size: 13px;
    color: var(--text-secondary);
    max-width: 640px;
    line-height: 1.45;
}

.engine-rank-chart-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.engine-rank-view-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.engine-rank-view-select {
    padding: 8px 12px;
    border: 1.5px solid var(--border-primary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    background: var(--white);
    color: var(--text-primary);
    min-width: 200px;
}

.engine-rank-view-select:focus {
    outline: none;
    border-color: var(--primary);
}

.engine-rank-chart-canvas-wrap {
    position: relative;
    height: 280px;
    width: 100%;
}

.engine-rank-chart-canvas-wrap canvas {
    max-height: 100%;
}

.engine-rank-chart-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 16px;
    margin-top: 10px;
    padding-top: 4px;
}

.engine-rank-legend-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1.5px solid var(--border-primary);
    background: var(--white);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color 0.12s ease, opacity 0.12s ease;
}

.engine-rank-legend-chip:hover {
    border-color: var(--primary);
}

.engine-rank-legend-chip.is-on {
    color: var(--text-primary);
    border-color: #cbd5e1;
}

.engine-rank-legend-chip:not(.is-on) {
    opacity: 0.45;
}

.engine-rank-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.engine-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.engine-table thead th {
    position: sticky;
    top: 0;
    background: var(--gray-100);
    color: var(--text-primary);
    font-weight: 600;
    text-align: left;
    padding: 10px 14px;
    border-bottom: 2px solid var(--border-primary);
    border-right: 1px solid var(--border-primary);
    white-space: nowrap;
    z-index: 1;
}

.engine-table thead th:last-child {
    border-right: none;
}

/* Sortable column headers */
.engine-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: background-color 0.12s ease;
}

.engine-table th.sortable:hover {
    background: #e2e8f0;
}

.engine-table th.sortable .sort-arrow {
    display: inline-block;
    width: 10px;
    margin-left: 6px;
    font-size: 12px;
    color: #94a3b8;
    font-weight: 700;
}

.engine-table th.sortable .sort-arrow::before {
    content: '⇅';
    opacity: 0.45;
}

.engine-table th.sortable.sorted-asc,
.engine-table th.sortable.sorted-desc {
    background: #dbeafe;
    color: #0369a1;
}

.engine-table th.sortable.sorted-asc .sort-arrow::before {
    content: '▲';
    color: #0369a1;
    opacity: 1;
}

.engine-table th.sortable.sorted-desc .sort-arrow::before {
    content: '▼';
    color: #0369a1;
    opacity: 1;
}

.engine-table tbody td {
    padding: 9px 14px;
    border-bottom: 1px solid var(--gray-200);
    border-right: 1px solid var(--gray-200);
    color: var(--text-primary);
    white-space: nowrap;
}

.engine-table tbody td:last-child {
    border-right: none;
}

.engine-table tbody tr:hover {
    background: #f8fafc;
}

.engine-table .mono {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 12.5px;
    font-weight: 600;
    color: #0277bd;
}

.empty-cell {
    text-align: center;
    padding: 40px 20px !important;
    color: var(--text-muted);
    font-style: italic;
}

.empty-cell.error {
    color: var(--danger);
    font-style: normal;
}

.session-dot.connected {
    background: var(--success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

@media (max-width: 900px) {
    .engine-data-toolbar .table-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .engine-toolbar-arrange {
        margin-left: 0;
        width: 100%;
        justify-content: center;
    }
}