/**
 * Universal Dataset Manager — Frontend Styles
 *
 * Modern, accessible, responsive styling for published datasets.
 */

:root {
    --udm-primary: #2563eb;
    --udm-primary-hover: #1d4ed8;
    --udm-surface: #ffffff;
    --udm-surface-alt: #f8fafc;
    --udm-border: #e2e8f0;
    --udm-border-focus: #3b82f6;
    --udm-text: #1e293b;
    --udm-text-muted: #64748b;
    --udm-radius: 6px;
    --udm-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --udm-info-bg: #eff6ff;
    --udm-info-border: #bfdbfe;
    --udm-info-text: #1e40af;
    --udm-warn-bg: #fffbeb;
    --udm-warn-border: #fde68a;
    --udm-warn-text: #92400e;
    --udm-error-bg: #fef2f2;
    --udm-error-border: #fecaca;
    --udm-error-text: #991b1b;
}

/* Base Wrapper */
.udm-dataset-wrapper {
    margin: 1.5rem 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    color: var(--udm-text);
    background: var(--udm-surface);
    border: 1px solid var(--udm-border);
    border-radius: var(--udm-radius);
    box-shadow: var(--udm-shadow);
    overflow: hidden;
}

/* Accessibility: Screen Reader Text */
.udm-dataset-wrapper .screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

/* Accessible Focus Outlines */
.udm-dataset-wrapper :focus-visible {
    outline: 2px solid var(--udm-border-focus);
    outline-offset: 2px;
}

/* Toolbar (Search & Filters) */
.udm-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--udm-surface-alt);
    border-bottom: 1px solid var(--udm-border);
}

.udm-search-form,
.udm-filters-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.udm-filter-control {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.udm-filter-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--udm-text-muted);
}

/* Form Controls */
.udm-input {
    height: 38px;
    padding: 0 0.75rem;
    font-size: 0.9rem;
    color: var(--udm-text);
    background-color: var(--udm-surface);
    border: 1px solid var(--udm-border);
    border-radius: var(--udm-radius);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.udm-input:focus {
    border-color: var(--udm-border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    outline: none;
}

.udm-search-input {
    min-width: 220px;
}

.udm-filter-input {
    max-width: 180px;
}

/* Buttons */
.udm-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 38px;
    padding: 0 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1;
    border-radius: var(--udm-radius);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.udm-btn-search,
.udm-btn-primary,
.udm-btn-filter {
    background-color: var(--udm-primary);
    color: #ffffff;
}

.udm-btn-search:hover,
.udm-btn-primary:hover,
.udm-btn-filter:hover {
    background-color: var(--udm-primary-hover);
    color: #ffffff;
}

.udm-btn-secondary {
    background-color: var(--udm-surface);
    color: var(--udm-text);
    border-color: var(--udm-border);
}

.udm-btn-secondary:hover {
    background-color: var(--udm-surface-alt);
}

.udm-btn-clear {
    color: var(--udm-text-muted);
    background: transparent;
    font-size: 1.1rem;
    padding: 0 0.5rem;
}

.udm-btn-clear:hover {
    color: var(--udm-text);
}

/* Responsive Table Wrapper */
.udm-table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
}

.udm-dataset-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

.udm-dataset-table th {
    padding: 0.75rem 1rem;
    font-weight: 600;
    color: var(--udm-text-muted);
    background-color: var(--udm-surface-alt);
    border-bottom: 2px solid var(--udm-border);
    white-space: nowrap;
}

.udm-dataset-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--udm-border);
    color: var(--udm-text);
}

.udm-dataset-table tbody tr:last-child td {
    border-bottom: none;
}

.udm-dataset-table tbody tr:hover {
    background-color: rgba(248, 250, 252, 0.75);
}

/* Sortable Headers */
.udm-th-sortable {
    cursor: pointer;
    user-select: none;
    padding: 0 !important;
}

.udm-sort-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    color: inherit;
    text-decoration: none;
    width: 100%;
    box-sizing: border-box;
}

.udm-sort-link:hover {
    color: var(--udm-primary);
}

.udm-sort-indicator {
    display: inline-block;
    font-size: 0.85rem;
    opacity: 0.4;
    transition: opacity 0.15s ease;
}

.udm-sorted-asc .udm-sort-indicator,
.udm-sorted-desc .udm-sort-indicator {
    opacity: 1;
    color: var(--udm-primary);
    font-weight: bold;
}

/* Pagination */
.udm-pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--udm-surface-alt);
    border-top: 1px solid var(--udm-border);
    font-size: 0.875rem;
}

.udm-pagination-count {
    color: var(--udm-text-muted);
}

.udm-pagination-nav {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.udm-page-link {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    color: var(--udm-text);
    background-color: var(--udm-surface);
    border: 1px solid var(--udm-border);
    border-radius: var(--udm-radius);
    text-decoration: none;
    font-weight: 500;
}

.udm-page-link:hover:not(.is-disabled) {
    border-color: var(--udm-primary);
    color: var(--udm-primary);
}

.udm-page-link.is-disabled {
    color: #94a3b8;
    background-color: #f1f5f9;
    border-color: #e2e8f0;
    cursor: not-allowed;
    pointer-events: none;
}

.udm-page-current {
    padding: 0.35rem 0.5rem;
    font-weight: 600;
    color: var(--udm-text);
}

/* States (Empty, No-Results, Error) */
.udm-notice {
    margin: 0;
    padding: 1rem 1.25rem;
    border-radius: var(--udm-radius);
    font-size: 0.95rem;
    line-height: 1.5;
}

.udm-notice-info {
    background-color: var(--udm-info-bg);
    border: 1px solid var(--udm-info-border);
    color: var(--udm-info-text);
}

.udm-notice-warning {
    background-color: var(--udm-warn-bg);
    border: 1px solid var(--udm-warn-border);
    color: var(--udm-warn-text);
}

.udm-notice-error {
    background-color: var(--udm-error-bg);
    border: 1px solid var(--udm-error-border);
    color: var(--udm-error-text);
}

.udm-empty-state,
.udm-no-results-state {
    padding: 2.5rem 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.udm-state-error {
    padding: 1rem;
    background: transparent;
    border: none;
    box-shadow: none;
}

/* Card-mode mobile strategy (Modern Cards, Business Directory) */
.udm-dataset-wrapper.udm-tp-modern_cards,
.udm-dataset-wrapper.udm-tp-business_directory {
    --udm-card-break: 720px;
}

@media (max-width: 720px) {
    .udm-dataset-wrapper.udm-tp-modern_cards .udm-dataset-table thead,
    .udm-dataset-wrapper.udm-tp-business_directory .udm-dataset-table thead {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(1px, 1px, 1px, 1px);
    }

    .udm-dataset-wrapper.udm-tp-modern_cards .udm-dataset-table tr,
    .udm-dataset-wrapper.udm-tp-business_directory .udm-dataset-table tr {
        display: block;
        margin: 0 1rem 1rem;
        border: 1px solid var(--udm-tp-border, var(--udm-border));
        border-radius: 10px;
        overflow: hidden;
        background: var(--udm-tp-surface, var(--udm-surface));
        box-shadow: var(--udm-shadow);
    }

    .udm-dataset-wrapper.udm-tp-modern_cards .udm-dataset-table td,
    .udm-dataset-wrapper.udm-tp-business_directory .udm-dataset-table td {
        display: flex;
        justify-content: space-between;
        align-items: baseline;
        gap: 1rem;
        text-align: right;
        border-bottom: 1px solid var(--udm-tp-border, var(--udm-border));
        padding: 0.6rem 1rem;
    }

    .udm-dataset-wrapper.udm-tp-modern_cards .udm-dataset-table td::before,
    .udm-dataset-wrapper.udm-tp-business_directory .udm-dataset-table td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--udm-text-muted);
        text-align: left;
        flex: 1;
    }

    .udm-dataset-wrapper.udm-tp-modern_cards .udm-dataset-table td:last-child,
    .udm-dataset-wrapper.udm-tp-business_directory .udm-dataset-table td:last-child {
        border-bottom: none;
    }

    /* Card-mode records still get the normal link approach for sorting off-screen:
       pagination remains the visible mobile control. */
    .udm-dataset-wrapper.udm-tp-modern_cards .udm-sort-link,
    .udm-dataset-wrapper.udm-tp-business_directory .udm-sort-link {
        pointer-events: none;
    }
}

/* Template CSS variables (set by TableTemplateConfig on each wrapper). */
.udm-dataset-wrapper[data-udm-template] .udm-dataset-table {
    font-size: var(--udm-tp-font-size, 0.9rem);
}
.udm-dataset-wrapper[data-udm-template] .udm-dataset-table td {
    color: var(--udm-tp-text);
    background: var(--udm-tp-surface);
    border-bottom: var(--udm-tp-border-width, 1px) solid var(--udm-tp-border);
    text-align: var(--udm-tp-cell-align, left);
}
.udm-dataset-wrapper[data-udm-template] .udm-dataset-table th {
    text-align: var(--udm-tp-header-align, left);
}
.udm-dataset-wrapper[data-udm-template] {
    border-radius: var(--udm-tp-radius, var(--udm-radius));
    max-width: var(--udm-tp-max-width, none);
}

/* Surface colors flow through the --udm-tp-* variables emitted inline per wrapper. */

/* Preset-inherent striping (Striped template) */
.udm-dataset-wrapper.udm-tp-striped .udm-dataset-table tbody tr:nth-child(even) td {
    background-color: var(--udm-tp-surface-alt, var(--udm-surface-alt));
}

/* Custom header background when explicitly configured */
.udm-dataset-wrapper[data-udm-template] .udm-dataset-table thead th {
    background: var(--udm-tp-header-bg, var(--udm-surface-alt));
    color: var(--udm-tp-text, var(--udm-text));
}

/* Row hover override */
.udm-dataset-wrapper.udm-tp-no-hover .udm-dataset-table tbody tr:hover {
    background-color: transparent;
}

/* Density overrides */
.udm-dataset-wrapper.udm-tp-density-compact .udm-dataset-table th,
.udm-dataset-wrapper.udm-tp-density-compact .udm-dataset-table td {
    padding: 0.4rem 0.6rem;
}

.udm-dataset-wrapper.udm-tp-density-spacious .udm-dataset-table th,
.udm-dataset-wrapper.udm-tp-density-spacious .udm-dataset-table td {
    padding: 1.1rem 1.25rem;
}

/* Striping overrides */
.udm-dataset-wrapper.udm-tp-striped-off .udm-dataset-table tbody tr:nth-child(even) td {
    background-color: var(--udm-tp-surface, var(--udm-surface));
}

.udm-dataset-wrapper.udm-tp-striped-on .udm-dataset-table tbody tr:nth-child(even) td {
    background-color: var(--udm-tp-surface-alt, var(--udm-surface-alt));
}

/* Record count chip */
.udm-record-count {
    padding: 0.75rem 1rem 0;
    font-size: 0.85rem;
    color: var(--udm-text-muted);
}

.udm-record-count__value {
    font-weight: 700;
    color: var(--udm-text);
}

/* Alignment utilities */
.udm-align-left { text-align: left; }
.udm-align-center { text-align: center; }
.udm-align-right { text-align: right; }

/* Mobile Responsiveness */
@media (max-width: 640px) {
    .udm-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .udm-search-form,
    .udm-filters-form {
        flex-direction: column;
        align-items: stretch;
    }

    .udm-search-input,
    .udm-filter-input {
        width: 100%;
        max-width: 100%;
    }

    .udm-pagination {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}