/* Admin styles — design-token foundation (gap #87).
   Muted, cool palette referencing Kibana/EUI's design language, as
   CSS custom properties. Every color/spacing/radius value below is a
   var(--...) reference; no selector holds a literal hex/px value.
   Structural tokens for the sidebar (gap #88) and dark-mode overrides
   (gap #90) are defined here too, even though nothing consumes the
   sidebar tokens or the [data-theme="dark"] block yet. */

:root {
    /* Color: surfaces */
    --color-bg: #F5F7FA;
    --color-surface: #FFFFFF;
    --color-surface-alt: #F5F7FA;
    --color-surface-hover: #EEF2F7;
    --color-border: #D3DAE6;

    /* Color: text */
    --color-text: #1A1C21;
    --color-text-muted: #69707D;
    --color-text-inverse: #FFFFFF;

    /* Color: brand / semantic */
    --color-primary: #0077CC;
    --color-primary-hover: #005A9E;
    --color-primary-soft-bg: #E6F1FA;
    --color-secondary: #69707D;
    --color-secondary-hover: #565D68;
    --color-success: #017D73;
    --color-success-bg: #D3F2ED;
    --color-success-text: #0F5132;
    --color-danger: #BD271E;
    --color-danger-hover: #A3221A;
    --color-danger-bg: #F8D7D5;
    --color-danger-text: #7A1913;
    --color-warning: #B98900;
    --color-warning-bg: #FCEED7;
    --color-warning-text: #785600;
    --color-info: #0077CC;
    --color-info-bg: #D6E9F8;

    /* Sidebar tokens */
    --sidebar-width: 240px;
    --sidebar-width-collapsed: 64px;
    --sidebar-bg: var(--color-surface);
    --sidebar-border: var(--color-border);
    --sidebar-item-text: var(--color-text-muted);
    --sidebar-item-hover-bg: var(--color-surface-alt);
    --sidebar-item-active-bg: var(--color-primary-soft-bg);
    --sidebar-item-active-border: var(--color-primary);
    --sidebar-item-active-text: var(--color-primary);

    /* Spacing scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;

    /* Radius */
    --radius-sm: 4px;
    --radius-md: 6px;

    /* Type */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

/* Dark mode (gap #90) — same token names, dark-appropriate values. Every
   component rule above and below already reads through var(--...), so
   toggling [data-theme="dark"] on <html> re-skins the whole admin UI
   with no component-level rule needing its own dark variant. */
:root[data-theme="dark"] {
    --color-bg: #141519;
    --color-surface: #1D1E24;
    --color-surface-alt: #25262C;
    --color-surface-hover: #2E2F38;
    --color-border: #343741;

    --color-text: #DFE5EF;
    --color-text-muted: #98A2B3;
    --color-text-inverse: #FFFFFF;

    --color-primary: #3E9DFF;
    --color-primary-hover: #2D8AE6;
    --color-primary-soft-bg: rgba(62, 157, 255, 0.16);
    --color-secondary: #98A2B3;
    --color-secondary-hover: #B0B8C4;
    --color-success: #3AC5B9;
    --color-success-bg: rgba(58, 197, 185, 0.14);
    --color-success-text: #3AC5B9;
    --color-danger: #F86B63;
    --color-danger-bg: rgba(248, 107, 99, 0.14);
    --color-danger-text: #F86B63;
    --color-warning: #F5C518;
    --color-warning-bg: rgba(245, 197, 24, 0.14);
    --color-warning-text: #F5C518;
    --color-info: #3E9DFF;
    --color-info-bg: rgba(62, 157, 255, 0.14);
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color 0.15s, color 0.15s;
}

/* Custom overrides for admin-specific functionality */
.form-help {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
    display: block;
}

/* Category tags */
.category-tag {
    display: inline-flex;
    align-items: center;
    background-color: var(--color-secondary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-sm);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.85rem;
    margin-right: var(--space-xs);
    margin-bottom: var(--space-xs);
}

.remove-category {
    background: none;
    border: none;
    color: var(--color-text-inverse);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0 var(--space-xs);
    line-height: 1;
    margin-left: var(--space-xs);
    opacity: 0.8;
}

.remove-category:hover {
    opacity: 1;
}

/* Image grid */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.image-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-surface);
    transition: transform 0.2s, box-shadow 0.2s;
}

.image-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(26, 28, 33, 0.1);
}

.image-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

.image-info {
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.image-info p {
    margin: 0 0 var(--space-xs) 0;
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.image-info p:first-child {
    font-weight: 600;
    color: var(--color-text);
}

.image-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface-alt);
    border-top: 1px solid var(--color-border);
}

.copy-url {
    background: none;
    border: none;
    font-size: 0.85rem;
    color: var(--color-primary);
    cursor: pointer;
    padding: 0;
}

.copy-url:hover {
    text-decoration: underline;
}

/* Upload form */
.upload-form {
    background: var(--color-surface-alt);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.upload-form.hidden {
    display: none;
}

/* HTMX indicator */
#upload-progress {
    display: none;
    margin-top: var(--space-sm);
    font-weight: 500;
    color: var(--color-primary);
}

.htmx-request #upload-progress {
    display: block;
}

.no-images {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-xl);
    background: var(--color-surface-alt);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
}

/* Admin layout */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-nav {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    padding: var(--space-md) 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    transition: width 0.15s ease, min-width 0.15s ease;
}

.admin-nav.collapsed {
    width: var(--sidebar-width-collapsed);
    min-width: var(--sidebar-width-collapsed);
}

.admin-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 20px;
    margin: 0 0 var(--space-sm) var(--space-sm);
    padding: var(--space-xs);
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    cursor: pointer;
}

.admin-nav-toggle:hover {
    background: var(--sidebar-item-hover-bg);
    color: var(--color-text);
}

.admin-nav-toggle svg {
    width: 20px;
    height: 20px;
}

.admin-nav-items {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 var(--space-sm);
}

.admin-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.55rem var(--space-sm);
    color: var(--sidebar-item-text);
    text-decoration: none;
    border-radius: var(--radius-sm);
    border-left: 3px solid transparent;
    font-size: 0.9rem;
    font-family: inherit;
    white-space: nowrap;
    overflow: hidden;
    width: 100%;
    background: none;
    border-top: none;
    border-right: none;
    border-bottom: none;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
}

.admin-nav-item:hover {
    background: var(--sidebar-item-hover-bg);
    color: var(--color-text);
}

.admin-nav-item.active {
    background: var(--sidebar-item-active-bg);
    color: var(--sidebar-item-active-text);
    border-left-color: var(--sidebar-item-active-border);
    font-weight: 600;
}

.admin-nav-icon {
    display: flex;
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.admin-nav-icon svg {
    width: 100%;
    height: 100%;
}

.admin-nav-label {
    overflow: hidden;
    text-overflow: ellipsis;
}

.admin-nav.collapsed .admin-nav-label {
    display: none;
}

.admin-nav.collapsed .admin-nav-item {
    justify-content: center;
    padding-left: var(--space-xs);
    padding-right: var(--space-xs);
}

.admin-nav.collapsed .admin-nav-toggle {
    margin-left: var(--space-xs);
}

.admin-nav-footer {
    padding: var(--space-sm);
    border-top: 1px solid var(--sidebar-border);
    margin-top: var(--space-sm);
}

.admin-nav-logout {
    color: var(--color-danger);
}

.admin-nav-logout:hover {
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

/* Dark-mode toggle (gap #90) — swap sun/moon by current [data-theme]. */
.admin-nav-theme-toggle .icon-moon {
    display: none;
}

:root[data-theme="dark"] .admin-nav-theme-toggle .icon-sun {
    display: none;
}

:root[data-theme="dark"] .admin-nav-theme-toggle .icon-moon {
    display: flex;
}

.admin-content {
    flex: 1;
    padding: var(--space-xl) 3rem;
    max-width: 1400px;
}

/* Messages */
.messages {
    margin-bottom: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid;
}

.messages.success {
    background-color: var(--color-success-bg);
    color: var(--color-success-text);
    border-color: var(--color-success);
}

.messages.error {
    background-color: var(--color-danger-bg);
    color: var(--color-danger-text);
    border-color: var(--color-danger);
}

.messages.warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning-text);
    border-color: var(--color-warning);
}

/* Forms */
.form-label {
    font-weight: 500;
    margin-bottom: var(--space-sm);
    display: block;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-surface);
    background-clip: padding-box;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    color: var(--color-text);
    background-color: var(--color-surface);
    border-color: var(--color-primary);
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(0, 119, 204, 0.25);
}

/* Bootstrap's .form-select ships its own color/background-color
   (--bs-body-color/--bs-body-bg) independent of .form-control, so the
   navigation-manager's <select class="form-select"> fields need the
   same token treatment explicitly -- otherwise they stay a fixed
   light control even in dark mode. */
.form-select {
    display: block;
    width: 100%;
    padding: 0.375rem 2.25rem 0.375rem 0.75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.form-select:focus {
    color: var(--color-text);
    background-color: var(--color-surface);
    border-color: var(--color-primary);
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(0, 119, 204, 0.25);
}

.form-control::-webkit-date-value {
    color: var(--color-text);
}

select.form-control:multiple {
    height: auto;
}

textarea.form-control {
    min-height: 300px;
}

textarea.form-control.content-editor {
    min-height: 450px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all 0.2s;
    border: 1px solid transparent;
}

.btn-primary {
    color: var(--color-text-inverse);
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    color: var(--color-text-inverse);
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

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

.btn-secondary:hover {
    color: var(--color-text-inverse);
    background-color: var(--color-secondary-hover);
    border-color: var(--color-secondary-hover);
}

.btn-danger {
    color: var(--color-text-inverse);
    background-color: var(--color-danger);
    border-color: var(--color-danger);
}

.btn-danger:hover {
    color: var(--color-text-inverse);
    background-color: var(--color-danger-hover);
    border-color: var(--color-danger-hover);
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline-primary:hover {
    color: var(--color-text-inverse);
    background-color: var(--color-primary);
}

.btn-outline-secondary {
    color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.btn-outline-secondary:hover {
    color: var(--color-text-inverse);
    background-color: var(--color-secondary);
}

.btn-outline-success {
    color: var(--color-success);
    border-color: var(--color-success);
}

.btn-outline-success:hover {
    color: var(--color-text-inverse);
    background-color: var(--color-success);
}

/* Bootstrap's .form-text/.form-check-input ship their own fixed
   colors (--bs-secondary-color, --bs-body-bg) independent of
   .form-control/.form-select, so they need the same explicit token
   treatment or they stay fixed-light regardless of [data-theme]. */
.form-text {
    color: var(--color-text-muted);
}

.form-check-input {
    background-color: var(--color-surface);
    border-color: var(--color-border);
}

.form-check-input:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Bootstrap utility classes actually used in admin templates —
   re-pointed at the token palette so no page shows a stray stock
   Bootstrap color next to the new one. */
.bg-light {
    background-color: var(--color-surface-alt) !important;
}

.bg-primary {
    background-color: var(--color-primary) !important;
}

.bg-secondary {
    background-color: var(--color-secondary) !important;
}

.bg-success {
    background-color: var(--color-success) !important;
}

.bg-warning {
    background-color: var(--color-warning) !important;
}

.text-muted {
    color: var(--color-text-muted) !important;
}

.text-dark {
    color: var(--color-text) !important;
}

.text-white {
    color: var(--color-text-inverse) !important;
}

.text-info {
    color: var(--color-info) !important;
}

.alert {
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
}

.alert-danger {
    color: var(--color-danger-text);
    background-color: var(--color-danger-bg);
    border-color: var(--color-danger);
}

.alert-info {
    color: var(--color-info);
    background-color: var(--color-info-bg);
    border-color: var(--color-info);
}

.alert-success {
    color: var(--color-success-text);
    background-color: var(--color-success-bg);
    border-color: var(--color-success);
}

.badge {
    display: inline-block;
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: 700;
    line-height: 1;
    color: var(--color-text-inverse);
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--radius-md);
}

.badge-secondary {
    background-color: var(--color-secondary);
}

/* Table. Bootstrap 5.3 paints row/cell backgrounds from its own
   --bs-table-* custom properties (set on .table and .table-dark), not
   from a plain background-color a descendant selector can win against
   -- overriding those variables here, rather than fighting them with
   more specific rules, is what actually re-themes striping/hover
   under both the light and [data-theme="dark"] token sets. */
.table {
    --bs-table-color: var(--color-text);
    --bs-table-bg: var(--color-surface);
    --bs-table-border-color: var(--color-border);
    --bs-table-striped-color: var(--color-text);
    --bs-table-striped-bg: var(--color-surface-alt);
    --bs-table-active-color: var(--color-text);
    --bs-table-active-bg: var(--color-surface-hover);
    --bs-table-hover-color: var(--color-text);
    --bs-table-hover-bg: var(--color-surface-hover);
    width: 100%;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.table th,
.table td {
    padding: 0.85rem var(--space-md);
    vertical-align: middle;
    border-top: 1px solid var(--color-border);
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid var(--color-border);
}

.table thead.table-dark {
    --bs-table-color: var(--color-text);
    --bs-table-bg: var(--color-surface-alt);
    --bs-table-border-color: var(--color-border);
}

.table thead.table-dark th {
    border-bottom: 2px solid var(--color-border);
}

.table tbody + tbody {
    border-top: 2px solid var(--color-border);
}

/* Dense table modifier (gap #89) — compact rows for list views. */
.table-dense th,
.table-dense td {
    padding: 0.5rem var(--space-md);
    font-size: 0.9rem;
}

/* List toolbar (gap #89) — search/filter/sort controls above a list. */
.list-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.list-toolbar-search {
    position: relative;
    max-width: 320px;
    flex: 1;
}

.list-toolbar-search input {
    padding-left: 2.25rem;
}

.list-toolbar-search-icon {
    position: absolute;
    left: 0.65rem;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--color-text-muted);
    pointer-events: none;
}

/* Inline icon action buttons (gap #89) — compact edit/delete controls
   inside dense table rows. */
.icon-btn-group {
    display: inline-flex;
    gap: var(--space-xs);
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    padding: 0;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-muted);
    cursor: pointer;
    text-decoration: none;
}

.icon-btn:hover {
    background: var(--color-surface-alt);
    color: var(--color-text);
}

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

.icon-btn-danger {
    color: var(--color-danger);
}

.icon-btn-danger:hover {
    background: var(--color-danger-bg);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

/* Card */
.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    color: var(--color-text);
    background-color: var(--color-surface);
    background-clip: border-box;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xl);
}

.card-header {
    padding: var(--space-md) 1.75rem;
    margin-bottom: 0;
    background-color: var(--color-surface-alt);
    border-bottom: 1px solid var(--color-border);
}

.card-body {
    flex: 1 1 auto;
    padding: var(--space-lg) 1.75rem;
}

/* Content & preview layout */
.content-edit-area {
    display: flex;
    gap: var(--space-lg);
}

.content-edit-area .editor-col {
    flex: 1;
    min-width: 0;
}

.content-edit-area .preview-col {
    flex: 1;
    min-width: 0;
}

.preview-panel {
    min-height: 450px;
    max-height: 600px;
    overflow-y: auto;
    padding: var(--space-lg);
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

@media (max-width: 1024px) {
    .content-edit-area {
        flex-direction: column;
    }
}

/* Navigation manager */
.navigation-manager {
    max-width: 900px;
    margin: 0 auto;
}

.nav-preview {
    border: 1px solid var(--color-border);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    min-height: 100px;
    background: var(--color-surface-alt);
}

/* Wiki page tree (moved here from wiki-tree.html's own inline <style>
   block, which held hard-coded hex values independent of the token
   system -- the exact gap-class this redesign exists to close). */
.tree-header {
    background-color: var(--color-surface-alt);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.namespace-card {
    margin-bottom: var(--space-md);
    padding: var(--space-md);
    background-color: var(--color-surface-alt);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.namespace-card h5 {
    margin-bottom: var(--space-sm);
}

.namespace-card .badge {
    font-size: 0.875rem;
}

.page-item {
    padding: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.page-item:last-child {
    border-bottom: none;
}

.page-actions {
    display: flex;
    gap: var(--space-sm);
}

.page-actions a,
.page-actions button {
    font-size: 0.875rem;
}

.namespace-root {
    font-style: italic;
    color: var(--color-text-muted);
}

/* Header actions */
.header-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.header-actions h1 {
    margin: 0;
}

/* Status badges */
.status-published {
    color: var(--color-success);
    font-weight: 600;
}

.status-draft {
    color: var(--color-warning);
    font-weight: 600;
}

/* Form groups spacing inside cards */
.card-body .mb-3 {
    margin-bottom: 1.25rem !important;
}

/* Card footer */
.card-footer {
    padding: var(--space-md) 1.75rem;
    background-color: var(--color-surface-alt);
    border-top: 1px solid var(--color-border);
}

/* Form actions */
.form-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 768px) {
    .admin-layout {
        flex-direction: column;
    }

    .admin-nav {
        width: 100%;
        min-width: 100%;
        height: auto;
        position: relative;
    }

    .admin-nav-items {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .admin-content {
        padding: var(--space-lg);
    }

    .header-actions {
        flex-direction: column;
        align-items: flex-start;
    }
}