/**
 * Ultimate Watermark — Backup management page
 *
 * Built on top of the design tokens declared in admin.css.
 *
 * @package UltimateWatermark
 * @since   2.0.9
 */

.uw-backup-page {
    display: flex;
    flex-direction: column;
    gap: var(--uw-space-5);
}

/* =========================================================================
   Header
   ========================================================================= */

.uw-backup-header {
    background: var(--uw-surface);
    border: 1px solid var(--uw-border);
    border-radius: var(--uw-radius-lg);
    box-shadow: var(--uw-shadow-sm);
    padding: var(--uw-space-5);
}

.uw-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--uw-space-4);
    flex-wrap: wrap;
}

.uw-header-info { min-width: 0; flex: 1; }

.uw-page-title {
    font-size: var(--uw-font-h2-size);
    font-weight: 700;
    color: var(--uw-text);
    margin: 0 0 4px 0;
    letter-spacing: -0.01em;
}

.uw-page-description {
    margin: 0;
    color: var(--uw-text-subtle);
    font-size: var(--uw-font-body-size);
    line-height: var(--uw-line-snug);
}

.uw-header-actions {
    display: inline-flex;
    align-items: center;
    gap: var(--uw-space-2);
    flex-wrap: wrap;
}

/* =========================================================================
   Stats grid
   ========================================================================= */

.uw-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--uw-space-4);
}

.uw-stat-card {
    background: var(--uw-surface);
    border: 1px solid var(--uw-border);
    border-radius: var(--uw-radius-lg);
    box-shadow: var(--uw-shadow-sm);
    padding: var(--uw-space-5);
    display: flex;
    align-items: center;
    gap: var(--uw-space-4);
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
    position: relative;
    overflow: hidden;
}

.uw-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--uw-gradient);
    opacity: 0;
    transition: opacity 0.15s ease;
}

.uw-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--uw-shadow-md);
    border-color: var(--uw-border-strong);
}

.uw-stat-card:hover::before { opacity: 1; }

.uw-stat-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--uw-radius-md);
    background: var(--uw-primary-soft);
    color: var(--uw-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.uw-stat-icon .dashicons {
    font-size: 22px;
    width: 22px;
    height: 22px;
}

.uw-stat-content { flex: 1; min-width: 0; }

.uw-stat-number {
    font-size: 24px;
    font-weight: 700;
    color: var(--uw-text);
    line-height: 1.1;
    margin-bottom: 2px;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.01em;
}

.uw-stat-label {
    font-size: 13px;
    color: var(--uw-text-subtle);
    font-weight: 500;
}

/* =========================================================================
   Backups section
   ========================================================================= */

.uw-backups-section {
    background: var(--uw-surface);
    border: 1px solid var(--uw-border);
    border-radius: var(--uw-radius-lg);
    box-shadow: var(--uw-shadow-sm);
    overflow: hidden;
}

.uw-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--uw-space-3);
    padding: var(--uw-space-4) var(--uw-space-5);
    border-bottom: 1px solid var(--uw-border);
    flex-wrap: wrap;
}

.uw-section-title {
    margin: 0;
    font-size: var(--uw-font-h3-size);
    font-weight: 600;
    color: var(--uw-text);
    letter-spacing: -0.005em;
}

.uw-section-actions {
    display: inline-flex;
    align-items: center;
    gap: var(--uw-space-2);
}

.uw-backup-count {
    font-size: var(--uw-font-small-size);
    color: var(--uw-text-subtle);
    background: var(--uw-surface-muted);
    padding: 2px 10px;
    border-radius: var(--uw-radius-pill);
    font-weight: 500;
}

.uw-backups-table-container {
    /* No padding — table reaches the edges of the section card */
}

/* =========================================================================
   Bulk actions
   ========================================================================= */

.uw-bulk-actions {
    background: var(--uw-surface-soft);
    border-bottom: 1px solid var(--uw-border);
    padding: var(--uw-space-3) var(--uw-space-5);
}

.uw-bulk-controls {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--uw-space-3);
}

.uw-bulk-buttons {
    display: inline-flex;
    gap: var(--uw-space-2);
    flex-wrap: wrap;
}

/* =========================================================================
   Table
   ========================================================================= */

.uw-backups-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--uw-surface);
    font-size: var(--uw-font-body-size);
}

.uw-backups-table thead th {
    background: var(--uw-surface-soft);
    border-bottom: 1px solid var(--uw-border);
    padding: 12px 16px;
    text-align: left;
    font-size: var(--uw-font-caption-size);
    font-weight: 600;
    color: var(--uw-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.uw-backups-table thead .uw-col-checkbox { width: 44px; padding: 12px; text-align: center; }
.uw-backups-table thead .uw-col-actions  { text-align: right; width: 1%; }
.uw-backups-table thead .uw-col-size     { width: 1%; white-space: nowrap; }
.uw-backups-table thead .uw-col-date     { width: 1%; white-space: nowrap; }

.uw-backups-table tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--uw-border-soft);
    vertical-align: middle;
    color: var(--uw-text);
}

.uw-backups-table tbody tr:last-child td { border-bottom: 0; }

.uw-backups-table tbody tr.uw-backup-row {
    transition: background-color 0.15s ease;
}

.uw-backups-table tbody tr.uw-backup-row:hover { background: var(--uw-surface-soft); }

.uw-backups-table tbody tr.selected,
.uw-backups-table tbody tr[aria-selected="true"] {
    background: var(--uw-primary-soft);
}

/* Checkbox column */
.uw-col-checkbox { text-align: center; width: 44px; }

.uw-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--uw-primary);
    cursor: pointer;
    margin: 0;
    vertical-align: middle;
}

/* File name cell — thumbnail + details */
.uw-file-info {
    display: flex;
    align-items: center;
    gap: var(--uw-space-3);
    min-width: 0;
}

.uw-file-thumbnail {
    width: 48px;
    height: 48px;
    border-radius: var(--uw-radius-sm);
    overflow: hidden;
    background: var(--uw-surface-muted);
    border: 1px solid var(--uw-border);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.uw-thumbnail-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    cursor: zoom-in;
    transition: transform 0.15s ease;
}

.uw-file-thumbnail:hover .uw-thumbnail-image {
    transform: scale(1.06);
}

.uw-file-details {
    min-width: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.uw-file-name {
    font-size: var(--uw-font-body-size);
    font-weight: 600;
    color: var(--uw-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 320px;
}

.uw-file-path {
    font-size: var(--uw-font-caption-size);
    color: var(--uw-text-faint);
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 320px;
}

.uw-additional-sizes {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
}

.uw-size-count {
    font-size: 11px;
    font-weight: 600;
    color: var(--uw-primary);
    background: var(--uw-primary-soft);
    padding: 2px 8px;
    border-radius: var(--uw-radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.uw-toggle-children {
    background: transparent;
    border: 1px solid var(--uw-border);
    color: var(--uw-text-muted);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    cursor: pointer;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, background-color 0.15s ease, color 0.15s ease;
}

.uw-toggle-children:hover {
    background: var(--uw-primary-soft);
    color: var(--uw-primary);
    border-color: var(--uw-primary);
}

.uw-toggle-children.expanded {
    transform: rotate(180deg);
    background: var(--uw-primary-soft);
    color: var(--uw-primary);
}

.uw-toggle-children .dashicons {
    font-size: 14px;
    width: 14px;
    height: 14px;
}

/* Size cell */
.uw-col-size {
    color: var(--uw-text-muted);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.uw-file-size {
    font-weight: 600;
    color: var(--uw-text);
}

.uw-size-breakdown {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-top: 4px;
    font-size: 11px;
}

.uw-main-size, .uw-additional-size {
    color: var(--uw-text-faint);
}

.uw-additional-size { color: var(--uw-primary); }

/* Date cell */
.uw-col-date {
    color: var(--uw-text-muted);
    font-size: 13px;
    white-space: nowrap;
}

.uw-date-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.uw-date-relative {
    font-weight: 600;
    color: var(--uw-text);
    font-size: 13px;
}

.uw-date-absolute {
    color: var(--uw-text-faint);
    font-size: 11px;
}

/* Actions cell */
.uw-col-actions {
    text-align: right;
    white-space: nowrap;
    width: 1%;
}

.uw-row-actions {
    display: inline-flex;
    gap: 4px;
    align-items: center;
}

.uw-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--uw-radius-sm);
    background: transparent;
    border: 1px solid transparent;
    color: var(--uw-text-muted);
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
    padding: 0;
}

.uw-action-btn:hover,
.uw-action-btn:focus {
    background: var(--uw-surface-muted);
    border-color: var(--uw-border);
    text-decoration: none;
}

.uw-action-btn:focus-visible {
    outline: none;
    box-shadow: var(--uw-shadow-focus);
}

.uw-action-btn .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
}

.uw-action-view:hover    { color: var(--uw-info);    background: var(--uw-info-soft);    border-color: rgba(2, 132, 199, 0.18); }
.uw-action-restore:hover { color: var(--uw-warning); background: var(--uw-warning-soft); border-color: rgba(217, 119, 6, 0.22); }
.uw-action-edit:hover    { color: var(--uw-primary); background: var(--uw-primary-soft); border-color: rgba(var(--uw-primary-rgb), 0.2); }
.uw-action-delete:hover  { color: var(--uw-danger);  background: var(--uw-danger-soft);  border-color: rgba(220, 38, 38, 0.22); }

/* Loading row */
.uw-loading-row td.uw-loading-cell {
    padding: var(--uw-space-8) var(--uw-space-4);
    text-align: center;
    color: var(--uw-text-subtle);
}

.uw-loading-spinner {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--uw-text-subtle);
    font-size: var(--uw-font-small-size);
}

.uw-loading-spinner .dashicons {
    animation: uw-spin 1s linear infinite;
    color: var(--uw-primary);
}

/* Child / hierarchy rows */
.uw-backup-child-row td {
    background: var(--uw-surface-soft);
    color: var(--uw-text-muted);
}

.uw-backup-child-row td:nth-child(2) {
    border-left: 3px solid var(--uw-primary);
}

.uw-child-file {
    padding-left: var(--uw-space-3);
}

.uw-child-thumbnail {
    width: 36px;
    height: 36px;
}

.uw-size-type {
    font-size: 11px;
    color: var(--uw-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: 2px;
}

/* =========================================================================
   Pagination
   ========================================================================= */

.uw-pagination-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--uw-space-3);
    padding: var(--uw-space-3) var(--uw-space-5);
    background: var(--uw-surface);
    border-top: 1px solid var(--uw-border);
    flex-wrap: wrap;
}

.uw-pagination-top {
    border-top: 0;
    border-bottom: 1px solid var(--uw-border);
    background: var(--uw-surface-soft);
}

.uw-pagination-info {
    font-size: var(--uw-font-small-size);
    color: var(--uw-text-muted);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.uw-pagination-text {
    color: var(--uw-text-muted);
    font-weight: 500;
}

.uw-pagination-text strong,
.uw-pagination-text b {
    color: var(--uw-text);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.uw-pagination-nav {
    display: inline-flex;
    align-items: center;
    gap: var(--uw-space-2);
    flex-wrap: wrap;
}

.uw-pagination-numbers {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    background: var(--uw-surface-soft);
    border: 1px solid var(--uw-border);
    border-radius: var(--uw-radius-md);
    padding: 3px;
}

/*
 * Pagination buttons share the same shape; differentiate via state classes.
 *  - .uw-pagination-prev / .uw-pagination-next  → prev/next nav arrows
 *  - .uw-pagination-number                       → individual page number
 *  - .uw-pagination-number.active                → currently selected page
 */
.uw-pagination-btn,
.uw-pagination-number {
    height: 32px;
    min-width: 32px;
    padding: 0 10px;
    background: transparent;
    border: 1px solid transparent;
    color: var(--uw-text-muted);
    border-radius: var(--uw-radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
    box-shadow: none;
    text-shadow: none;
}

/* Prev / Next sit OUTSIDE the numbers pill — give them a thin border so
   they read as buttons rather than free-floating text. */
.uw-pagination-prev,
.uw-pagination-next {
    background: var(--uw-surface);
    border-color: var(--uw-border-strong);
    color: var(--uw-text);
}

.uw-pagination-btn .dashicons,
.uw-pagination-number .dashicons {
    font-size: 14px;
    width: 14px;
    height: 14px;
}

.uw-pagination-btn:hover:not(:disabled),
.uw-pagination-number:hover:not(:disabled):not(.active) {
    background: var(--uw-primary-soft);
    color: var(--uw-primary);
    border-color: transparent;
}

.uw-pagination-prev:hover:not(:disabled),
.uw-pagination-next:hover:not(:disabled) {
    border-color: var(--uw-primary);
}

.uw-pagination-btn:focus-visible,
.uw-pagination-number:focus-visible {
    outline: none;
    box-shadow: var(--uw-shadow-focus);
}

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

.uw-pagination-number.active {
    background: var(--uw-primary);
    color: #ffffff;
    border-color: var(--uw-primary);
    box-shadow: 0 1px 3px rgba(var(--uw-primary-rgb), 0.35);
    cursor: default;
}

.uw-pagination-ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    min-width: 24px;
    color: var(--uw-text-faint);
    font-weight: 700;
    letter-spacing: 1px;
    user-select: none;
}

@media (max-width: 600px) {
    .uw-pagination-container {
        flex-direction: column;
        align-items: stretch;
    }

    .uw-pagination-info { text-align: center; }

    .uw-pagination-nav {
        justify-content: center;
    }

    .uw-pagination-prev,
    .uw-pagination-next {
        flex: 1;
    }
}

/* =========================================================================
   Empty state
   ========================================================================= */

.uw-empty-state {
    background: var(--uw-surface);
    border: 1px dashed var(--uw-border-strong);
    border-radius: var(--uw-radius-lg);
    padding: var(--uw-space-12) var(--uw-space-5);
    text-align: center;
}

.uw-empty-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--uw-primary-soft);
    color: var(--uw-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--uw-space-3);
}

.uw-empty-icon .dashicons { font-size: 30px; width: 30px; height: 30px; }

.uw-empty-title {
    margin: 0 0 4px;
    font-size: var(--uw-font-h2-size);
    font-weight: 700;
    color: var(--uw-text);
}

.uw-empty-description {
    margin: 0 0 var(--uw-space-4);
    color: var(--uw-text-subtle);
    font-size: var(--uw-font-body-size);
}

/* =========================================================================
   Image preview modal
   ========================================================================= */

.uw-image-modal {
    position: fixed;
    inset: 0;
    z-index: var(--uw-z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--uw-space-4);
}

.uw-image-modal[style*="block"],
.uw-image-modal[style*="flex"] {
    display: flex;
}

.uw-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.uw-modal-content {
    position: relative;
    z-index: 1;
    background: var(--uw-surface);
    border-radius: var(--uw-radius-lg);
    box-shadow: var(--uw-shadow-xl);
    max-width: 92vw;
    max-height: 92vh;
    width: 720px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: uw-scale-in 0.18s ease-out;
}

.uw-modal-header {
    padding: var(--uw-space-4) var(--uw-space-5);
    border-bottom: 1px solid var(--uw-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--uw-space-3);
}

.uw-modal-title {
    margin: 0;
    font-size: var(--uw-font-h3-size);
    font-weight: 600;
    color: var(--uw-text);
}

.uw-modal-close {
    background: none;
    border: 0;
    cursor: pointer;
    color: var(--uw-text-faint);
    padding: 6px;
    border-radius: var(--uw-radius-sm);
    line-height: 0;
    transition: color 0.15s ease, background-color 0.15s ease;
}

.uw-modal-close:hover {
    color: var(--uw-text);
    background: var(--uw-surface-muted);
}

.uw-modal-close .dashicons {
    font-size: 20px;
    width: 20px;
    height: 20px;
}

.uw-modal-body {
    padding: var(--uw-space-4);
    overflow: auto;
    text-align: center;
    background: var(--uw-surface-muted);
}

.uw-modal-image,
.uw-modal-body img {
    max-width: 100%;
    max-height: 70vh;
    border-radius: var(--uw-radius-md);
    display: inline-block;
    background: var(--uw-surface);
    box-shadow: var(--uw-shadow-md);
}

.uw-modal-footer {
    padding: var(--uw-space-3) var(--uw-space-5);
    background: var(--uw-surface-soft);
    border-top: 1px solid var(--uw-border);
    display: flex;
    justify-content: flex-end;
    gap: var(--uw-space-2);
}

@keyframes uw-scale-in {
    from { transform: translateY(8px) scale(0.98); opacity: 0; }
    to { transform: translateY(0) scale(1); opacity: 1; }
}

/* =========================================================================
   Responsive
   ========================================================================= */

@media (max-width: 1024px) {
    .uw-backups-table .uw-col-size { display: none; }
}

@media (max-width: 768px) {
    .uw-stats-grid { grid-template-columns: 1fr 1fr; }
    .uw-backups-table .uw-col-date { display: none; }
    .uw-bulk-controls { justify-content: stretch; }
    .uw-bulk-buttons { flex: 1; flex-wrap: wrap; }
    .uw-bulk-buttons .uw-btn { flex: 1; justify-content: center; }
    .uw-file-thumbnail { width: 36px; height: 36px; }
    .uw-file-name, .uw-file-path { max-width: 200px; }
}

@media (max-width: 480px) {
    .uw-stats-grid { grid-template-columns: 1fr; }
    .uw-header-content { flex-direction: column; align-items: stretch; }
    .uw-header-actions { justify-content: stretch; }
    .uw-header-actions .uw-btn { flex: 1; justify-content: center; }
    .uw-row-actions { gap: 2px; }
    .uw-action-btn { width: 28px; height: 28px; }
    .uw-action-btn .dashicons { font-size: 14px; width: 14px; height: 14px; }
}