/*
 * cms-core/admin/css/admin.css — gismc-core Admin Panel Styles
 *
 * Self-contained admin styles. No Tailwind CDN dependency.
 * All colors delegate to --admin-* variables, which in turn delegate to
 * --gismc-color-* defined in cms-core/css/theme-vars.css.
 * Dark mode is automatic via the variable delegation chain — no extra selectors needed.
 *
 * Load order in admin HTML:
 *   1. cms-core/fouc-config.js
 *   2. Inline FOUC script (reads storage_prefix, applies data-theme)
 *   3. cms-core/css/theme-vars.css
 *   4. cms-core/admin/css/admin.css
 *   5. Page scripts
 *
 * Component class namespacing: .admin-* prefix throughout.
 */

/* =============================================================================
   CSS CUSTOM PROPERTIES — delegate to gismc-core global vars
   (Task 3.6.1 — admin.css delegates rather than hardcoding hex values)
   ============================================================================= */
:root {
    --admin-bg:             var(--gismc-color-bg-page);
    --admin-surface:        var(--gismc-color-bg-surface);
    --admin-surface-alt:    var(--gismc-color-bg-surface-alt);
    --admin-text:           var(--gismc-color-text-primary);
    --admin-text-secondary: var(--gismc-color-text-secondary);
    --admin-text-muted:     var(--gismc-color-text-muted);
    --admin-heading:        var(--gismc-color-text-heading);
    --admin-primary:        var(--gismc-color-primary);
    --admin-primary-hover:  var(--gismc-color-primary-hover);
    --admin-primary-light:  var(--gismc-color-primary-light);
    --admin-primary-text:   var(--gismc-color-primary-text);
    --admin-danger:         var(--gismc-color-danger);
    --admin-success:        var(--gismc-color-success);
    --admin-warning:        var(--gismc-color-warning);
    --admin-info:           var(--gismc-color-info);
    --admin-border:         var(--gismc-color-border);
    --admin-border-focus:   var(--gismc-color-border-focus);
    --admin-focus-ring:     var(--gismc-color-focus-ring);
    --admin-sidebar-active: var(--gismc-color-sidebar-active-bg);
    --admin-shadow-sm:      var(--gismc-shadow-sm);
    --admin-shadow-md:      var(--gismc-shadow-md);
    --admin-shadow-lg:      var(--gismc-shadow-lg);
    --admin-radius:         0.5rem;
    --admin-sidebar-width:  260px;
    --admin-font:           'Jost', system-ui, -apple-system, sans-serif;
}

/* =============================================================================
   BASE RESET & TYPOGRAPHY
   ============================================================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
}

body {
    font-family: var(--admin-font);
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--admin-text);
    background-color: var(--admin-bg);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--admin-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--gismc-color-scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--gismc-color-scrollbar-thumb); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gismc-color-scrollbar-thumb-hover); }

/* =============================================================================
   LAYOUT — two-column (sidebar + main)  (Task 3.6.4)
   ============================================================================= */

/* Full-height flex row wrapping sidebar and main content */
.admin-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* =============================================================================
   SIDEBAR  (Task 3.6.4 + 3.5.5)
   ============================================================================= */
.admin-sidebar {
    width: var(--admin-sidebar-width);
    min-width: var(--admin-sidebar-width);
    height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--admin-surface);
    border-right: 1px solid var(--admin-border);
    overflow-y: auto;
    flex-shrink: 0;
}

.admin-sidebar-header {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--admin-border);
}

.admin-sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.admin-sidebar-logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background-color: var(--admin-primary);
    border-radius: 0.375rem;
    color: #fff;
    font-size: 0.875rem;
    font-weight: 700;
    flex-shrink: 0;
}

.admin-sidebar-logo-text {
    font-size: 1rem;
    font-weight: 700;
    color: var(--admin-text);
    letter-spacing: -0.02em;
}

.admin-sidebar-nav {
    flex: 1;
    padding: 0.75rem 0.75rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.admin-sidebar-section-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--admin-text-muted);
    padding: 0.75rem 0.5rem 0.375rem;
}

.admin-sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5625rem 0.75rem;
    border-radius: var(--admin-radius);
    color: var(--admin-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    text-decoration: none;
    transition: all 0.15s ease;
}

.admin-sidebar-link:hover {
    background-color: var(--admin-surface-alt);
    color: var(--admin-text);
    text-decoration: none;
    transform: translateX(2px);
}

.admin-sidebar-link.is-active {
    background: linear-gradient(90deg, var(--admin-sidebar-active) 0%, transparent 100%);
    border-left: 3px solid var(--admin-primary);
    color: var(--admin-primary);
    padding-left: calc(0.75rem - 3px);
}

.admin-sidebar-link svg {
    width: 1.125rem;
    height: 1.125rem;
    flex-shrink: 0;
    opacity: 0.75;
}

.admin-sidebar-link.is-active svg {
    opacity: 1;
}

.admin-sidebar-footer {
    padding: 0.75rem;
    border-top: 1px solid var(--admin-border);
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

/* Sign out button — same visual as sidebar link but red on hover */
.admin-signout-btn:hover {
    background-color: rgba(220, 38, 38, 0.08);
    color: var(--admin-danger);
}

/* =============================================================================
   MAIN CONTENT AREA
   ============================================================================= */
.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

.admin-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--admin-border);
    background-color: var(--admin-surface);
    flex-shrink: 0;
}

.admin-topbar-left {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.admin-page-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--admin-text);
    letter-spacing: -0.01em;
}

.admin-page-subtitle {
    font-size: 0.8125rem;
    color: var(--admin-text-muted);
}

.admin-topbar-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.admin-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

/* =============================================================================
   BUTTONS
   ============================================================================= */
.admin-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    border-radius: var(--admin-radius);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
    line-height: 1.25;
    text-decoration: none;
    white-space: nowrap;
}

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

.admin-btn svg {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
}

.admin-btn-primary {
    background-color: var(--admin-primary);
    color: #fff;
    border-color: var(--admin-primary);
}

.admin-btn-primary:hover:not(:disabled) {
    background-color: var(--admin-primary-hover);
    border-color: var(--admin-primary-hover);
}

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

.admin-btn-secondary:hover:not(:disabled) {
    background-color: var(--admin-surface-alt);
}

.admin-btn-danger {
    background-color: var(--admin-danger);
    color: #fff;
    border-color: var(--admin-danger);
}

.admin-btn-danger:hover:not(:disabled) {
    filter: brightness(0.9);
}

.admin-btn-ghost {
    background-color: transparent;
    color: var(--admin-text-secondary);
    border-color: transparent;
}

.admin-btn-ghost:hover:not(:disabled) {
    background-color: var(--admin-surface-alt);
    color: var(--admin-text);
}

.admin-btn-sm {
    padding: 0.3125rem 0.625rem;
    font-size: 0.8125rem;
}

/* =============================================================================
   FORM INPUTS
   ============================================================================= */
.admin-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--admin-text);
    margin-bottom: 0.375rem;
}

.admin-label-required::after {
    content: ' *';
    color: var(--admin-danger);
}

.admin-input,
.admin-textarea,
.admin-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    background-color: var(--admin-surface);
    color: var(--admin-text);
    font-size: 0.875rem;
    font-family: var(--admin-font);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    line-height: 1.5;
}

.admin-input:focus,
.admin-textarea:focus,
.admin-select:focus {
    outline: none;
    border-color: var(--admin-border-focus);
    box-shadow: 0 0 0 3px var(--admin-focus-ring);
}

.admin-textarea {
    resize: vertical;
    min-height: 6rem;
}

.admin-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.625rem center;
    padding-right: 2.25rem;
}

.admin-field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 1.25rem;
}

.admin-field-error {
    font-size: 0.8125rem;
    color: var(--admin-danger);
}

.admin-field-hint {
    font-size: 0.8125rem;
    color: var(--admin-text-muted);
}

/* Toggle switch */
.admin-toggle-wrap {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.admin-toggle {
    position: relative;
    width: 2.5rem;
    height: 1.375rem;
    flex-shrink: 0;
}

.admin-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.admin-toggle-slider {
    position: absolute;
    inset: 0;
    background-color: var(--admin-border);
    border-radius: 9999px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.admin-toggle-slider::before {
    content: '';
    position: absolute;
    left: 0.1875rem;
    top: 0.1875rem;
    width: 1rem;
    height: 1rem;
    background-color: #fff;
    border-radius: 50%;
    transition: transform 0.2s ease;
}

.admin-toggle input:checked + .admin-toggle-slider {
    background-color: var(--admin-primary);
}

.admin-toggle input:checked + .admin-toggle-slider::before {
    transform: translateX(1.125rem);
}

.admin-toggle input:focus + .admin-toggle-slider {
    box-shadow: 0 0 0 3px var(--admin-focus-ring);
}

/* Tags input */
.admin-tags-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    padding: 0.375rem;
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    background-color: var(--admin-surface);
    min-height: 2.5rem;
    align-items: flex-start;
    cursor: text;
}

.admin-tags-wrap:focus-within {
    border-color: var(--admin-border-focus);
    box-shadow: 0 0 0 3px var(--admin-focus-ring);
}

.admin-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.1875rem 0.5rem;
    background-color: var(--admin-primary-light);
    color: var(--admin-primary-text);
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 500;
    white-space: nowrap;
}

.admin-tag-remove {
    background: none;
    border: none;
    cursor: pointer;
    color: inherit;
    display: flex;
    align-items: center;
    padding: 0;
    opacity: 0.7;
    line-height: 1;
    font-size: 1rem;
}

.admin-tag-remove:hover { opacity: 1; }

.admin-tags-input {
    border: none;
    outline: none;
    background: none;
    font-size: 0.875rem;
    font-family: var(--admin-font);
    color: var(--admin-text);
    min-width: 120px;
    flex: 1;
    padding: 0.1875rem 0.25rem;
}

/* =============================================================================
   CARDS
   ============================================================================= */
.admin-card {
    background-color: var(--admin-surface);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    box-shadow: var(--admin-shadow-sm);
}

.admin-card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--admin-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.admin-card-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--admin-text);
}

.admin-card-body {
    padding: 1.25rem;
}

/* =============================================================================
   TABLE
   ============================================================================= */
.admin-table-wrap {
    overflow-x: auto;
    border-radius: var(--admin-radius);
    border: 1px solid var(--admin-border);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.admin-table th {
    background-color: var(--admin-surface-alt);
    color: var(--admin-text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.625rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--admin-border);
    white-space: nowrap;
}

.admin-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--admin-border);
    color: var(--admin-text);
    vertical-align: middle;
}

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

.admin-table tbody tr:hover td {
    background-color: var(--admin-surface-alt);
}

.admin-table-checkbox {
    width: 1rem;
    height: 1rem;
    accent-color: var(--admin-primary);
    cursor: pointer;
}

/* =============================================================================
   BADGES / STATUS PILLS
   ============================================================================= */
.admin-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.1875rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.admin-badge-success {
    background-color: rgba(22, 163, 74, 0.1);
    color: var(--admin-success);
}

.admin-badge-warning {
    background-color: rgba(202, 138, 4, 0.1);
    color: var(--admin-warning);
}

.admin-badge-danger {
    background-color: rgba(220, 38, 38, 0.1);
    color: var(--admin-danger);
}

.admin-badge-info {
    background-color: rgba(147, 51, 234, 0.1);
    color: var(--admin-info);
}

.admin-badge-neutral {
    background-color: var(--admin-surface-alt);
    color: var(--admin-text-muted);
}

/* =============================================================================
   SEARCH & FILTER BAR
   ============================================================================= */
.admin-filter-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.admin-search-wrap {
    position: relative;
    flex: 1;
    min-width: 200px;
}

.admin-search-icon {
    position: absolute;
    left: 0.625rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--admin-text-muted);
    pointer-events: none;
    width: 1rem;
    height: 1rem;
}

.admin-search-input {
    width: 100%;
    padding: 0.5rem 0.75rem 0.5rem 2.25rem;
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    background-color: var(--admin-surface);
    color: var(--admin-text);
    font-size: 0.875rem;
    font-family: var(--admin-font);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.admin-search-input:focus {
    outline: none;
    border-color: var(--admin-border-focus);
    box-shadow: 0 0 0 3px var(--admin-focus-ring);
}

/* =============================================================================
   PAGINATION
   ============================================================================= */
.admin-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--admin-border);
    background-color: var(--admin-surface);
    font-size: 0.8125rem;
    color: var(--admin-text-muted);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.admin-pagination-btns {
    display: flex;
    gap: 0.25rem;
}

.admin-pagination-btn {
    padding: 0.375rem 0.625rem;
    border: 1px solid var(--admin-border);
    border-radius: 0.375rem;
    background-color: var(--admin-surface);
    color: var(--admin-text);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.admin-pagination-btn:hover:not(:disabled) {
    background-color: var(--admin-surface-alt);
}

.admin-pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.admin-pagination-btn.is-active {
    background-color: var(--admin-primary);
    border-color: var(--admin-primary);
    color: #fff;
}

/* =============================================================================
   MODAL / DIALOG
   ============================================================================= */
.admin-modal-backdrop {
    position: fixed;
    inset: 0;
    background-color: var(--gismc-color-bg-overlay);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.admin-modal {
    background-color: var(--admin-surface);
    border: 1px solid var(--admin-border);
    border-radius: calc(var(--admin-radius) * 1.5);
    box-shadow: var(--admin-shadow-lg);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
}

.admin-modal-header {
    padding: 1.25rem 1.5rem 0;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
}

.admin-modal-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--admin-text);
}

.admin-modal-body {
    padding: 1rem 1.5rem;
    color: var(--admin-text-secondary);
}

.admin-modal-footer {
    padding: 0 1.5rem 1.5rem;
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

/* =============================================================================
   NOTIFICATION TOAST
   ============================================================================= */
.admin-toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    pointer-events: none;
}

.admin-toast {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.75rem 1rem;
    border-radius: var(--admin-radius);
    background-color: var(--admin-surface);
    border: 1px solid var(--admin-border);
    box-shadow: var(--admin-shadow-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--admin-text);
    max-width: 340px;
    pointer-events: auto;
    animation: admin-toast-in 0.2s ease;
}

.admin-toast.is-success { border-left: 3px solid var(--admin-success); }
.admin-toast.is-error   { border-left: 3px solid var(--admin-danger); }
.admin-toast.is-info    { border-left: 3px solid var(--admin-primary); }

@keyframes admin-toast-in {
    from { opacity: 0; transform: translateY(0.5rem); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =============================================================================
   BULK ACTION BAR
   ============================================================================= */
.admin-bulk-bar {
    display: none;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background-color: var(--admin-primary-light);
    border: 1px solid var(--admin-primary);
    border-radius: var(--admin-radius);
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--admin-primary-text);
    flex-wrap: wrap;
}

.admin-bulk-bar.is-visible {
    display: flex;
}

/* =============================================================================
   EMPTY STATE
   ============================================================================= */
.admin-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    color: var(--admin-text-muted);
    gap: 0.75rem;
}

.admin-empty-state svg {
    width: 3rem;
    height: 3rem;
    opacity: 0.4;
}

.admin-empty-state-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--admin-text-secondary);
}

.admin-empty-state-desc {
    font-size: 0.875rem;
}

/* =============================================================================
   IMAGE PICKER FIELD
   ============================================================================= */
.admin-image-picker {
    border: 2px dashed var(--admin-border);
    border-radius: var(--admin-radius);
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.admin-image-picker:hover {
    border-color: var(--admin-primary);
    background-color: var(--admin-surface-alt);
}

.admin-image-preview {
    max-width: 100%;
    max-height: 200px;
    border-radius: 0.375rem;
    object-fit: cover;
    display: block;
    margin: 0 auto 0.75rem;
}

/* =============================================================================
   QUILL EDITOR OVERRIDES
   ============================================================================= */
.admin-quill-wrap {
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    overflow: hidden;
    background-color: var(--admin-surface);
}

.admin-quill-wrap .ql-toolbar {
    border: none;
    border-bottom: 1px solid var(--admin-border);
    background-color: var(--admin-surface-alt);
}

.admin-quill-wrap .ql-container {
    border: none;
    font-size: 0.9375rem;
    font-family: var(--admin-font);
    color: var(--admin-text);
    min-height: 200px;
}

.admin-quill-wrap .ql-editor {
    color: var(--admin-text);
    background-color: var(--admin-surface);
}

/* Dark mode Quill toolbar icons */
[data-theme="dark"] .admin-quill-wrap .ql-toolbar .ql-stroke {
    stroke: var(--gismc-color-text-secondary);
}

[data-theme="dark"] .admin-quill-wrap .ql-toolbar .ql-fill {
    fill: var(--gismc-color-text-secondary);
}

[data-theme="dark"] .admin-quill-wrap .ql-toolbar button:hover .ql-stroke,
[data-theme="dark"] .admin-quill-wrap .ql-toolbar .ql-active .ql-stroke {
    stroke: var(--gismc-color-primary);
}

[data-theme="dark"] .admin-quill-wrap .ql-toolbar button:hover .ql-fill,
[data-theme="dark"] .admin-quill-wrap .ql-toolbar .ql-active .ql-fill {
    fill: var(--gismc-color-primary);
}

[data-theme="dark"] .admin-quill-wrap .ql-toolbar .ql-picker-label {
    color: var(--gismc-color-text-secondary);
}

[data-theme="dark"] .admin-quill-wrap .ql-toolbar .ql-picker-options {
    background-color: var(--gismc-color-bg-surface);
    border-color: var(--gismc-color-border);
    color: var(--gismc-color-text-primary);
}

/* =============================================================================
   SETTINGS PAGE COMPONENTS  (Task 3.6.2)
   ============================================================================= */

/* Section wrapper with bottom divider */
.admin-settings-section {
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--admin-border);
}

.admin-settings-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.admin-settings-section-title {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--admin-text);
    margin-bottom: 0.25rem;
}

.admin-settings-section-desc {
    font-size: 0.8125rem;
    color: var(--admin-text-muted);
    margin-bottom: 1rem;
}

/* Responsive grid for theme cards */
.admin-settings-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

/* Theme selection card */
.admin-theme-card {
    border: 2px solid var(--admin-border);
    border-radius: var(--admin-radius);
    padding: 0.875rem;
    cursor: pointer;
    background-color: var(--admin-surface);
    transition: border-color 0.15s ease, background-color 0.15s ease;
    user-select: none;
    position: relative;
    text-align: center;
}

.admin-theme-card:hover:not(.is-active) {
    border-color: var(--admin-primary);
    opacity: 0.85;
}

.admin-theme-card.is-active {
    border-color: var(--admin-primary);
    background-color: var(--admin-bg);
}

.admin-theme-card .theme-check {
    display: none;
    position: absolute;
    top: 0.375rem;
    right: 0.375rem;
    width: 1rem;
    height: 1rem;
    color: var(--admin-primary);
}

.admin-theme-card.is-active .theme-check {
    display: block;
}

.admin-theme-card-preview {
    height: 3rem;
    border-radius: 0.25rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    border: 1px solid var(--admin-border);
}

.admin-theme-card-preview.is-light {
    background-color: #f9fafb;
    color: #111827;
}

.admin-theme-card-preview.is-dark {
    background-color: #0f172a;
    color: #f1f5f9;
}

.admin-theme-card-preview.is-system {
    background: linear-gradient(135deg, #f9fafb 50%, #0f172a 50%);
    color: transparent;
}

.admin-theme-card-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--admin-text);
}

/* Flex row for accent swatches */
.admin-swatch-row {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Accent color circle button */
.admin-accent-swatch {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: box-shadow 0.15s ease, transform 0.15s ease;
    padding: 0;
    outline: none;
}

.admin-accent-swatch:hover {
    transform: scale(1.1);
}

.admin-accent-swatch.is-active {
    box-shadow: 0 0 0 2px var(--admin-bg), 0 0 0 4px var(--admin-primary);
}

/* Live accent preview bar */
.admin-preview-strip {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--admin-radius);
    background-color: var(--admin-bg);
    border: 1px solid var(--admin-border);
    margin-top: 0.75rem;
}

.admin-preview-strip-label {
    font-size: 0.8125rem;
    color: var(--admin-text-muted);
    flex-shrink: 0;
}

/* Settings group wrapper and label */
.admin-settings-group {
    margin-bottom: 1.5rem;
}

.admin-settings-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--admin-text);
    margin-bottom: 0.5rem;
}

/* Settings hint text (appears below a settings group) */
.admin-settings-hint {
    font-size: 0.875rem;
    color: var(--admin-text-muted);
    margin-top: 0.5rem;
}

/* =============================================================================
   LOADING STATE
   ============================================================================= */
.admin-skeleton {
    background: linear-gradient(
        90deg,
        var(--admin-surface-alt) 25%,
        var(--admin-border) 50%,
        var(--admin-surface-alt) 75%
    );
    background-size: 200% 100%;
    animation: admin-skeleton-shimmer 1.5s infinite;
    border-radius: 0.25rem;
}

@keyframes admin-skeleton-shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =============================================================================
   SESSION EXPIRED MODAL
   ============================================================================= */
.admin-session-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 100;
    background-color: var(--gismc-color-bg-overlay);
    display: none;
    align-items: center;
    justify-content: center;
}

.admin-session-modal-backdrop.is-visible {
    display: flex;
}