.admin-app {
    min-height: 100vh;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.admin-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.admin-header-left h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.admin-header-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.logout-form {
    margin: 0;
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 400px;
}

.login-card h1 {
    font-size: 1.35rem;
    margin-bottom: 4px;
}

.login-card .muted {
    margin-bottom: 20px;
}

.login-card label {
    display: block;
    margin-bottom: 14px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.login-card input {
    display: block;
    width: 100%;
    margin-top: 6px;
    padding: 10px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
}

.login-submit {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
}

.login-back {
    display: block;
    text-align: center;
    margin-top: 16px;
}

.login-error {
    padding: 10px 12px;
    margin-bottom: 16px;
    border-radius: var(--radius-sm);
    background: #ef444422;
    border: 1px solid #ef444466;
    color: #ef4444;
    font-size: 0.85rem;
}

.back-link {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.back-link:hover {
    color: var(--text-primary);
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    background: none;
    color: var(--text-primary);
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    color: #fff;
}

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

.btn-ghost:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 0.8rem;
}

.btn-danger {
    color: #ef4444;
    border-color: #ef444433;
}

.btn-danger:hover {
    background: #ef444422;
}

.admin-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    min-height: calc(100vh - 57px);
    height: calc(100vh - 57px);
    align-items: stretch;
}

.admin-sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 16px;
    overflow-y: auto;
}

.admin-canvas {
    padding: 16px 24px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

#constructor-workspace[hidden],
#markup-workspace[hidden] {
    display: none !important;
}

#constructor-workspace:not([hidden]),
#markup-workspace:not([hidden]) {
    flex: 1;
    min-height: 0;
}

.panel {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
}

.panel h2 {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.panel label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.panel input[type="text"],
.panel input[type="number"],
.panel textarea,
.panel select {
    display: block;
    width: 100%;
    margin-top: 4px;
    padding: 8px 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    outline: none;
}

.panel input:focus,
.panel textarea:focus,
.panel select:focus {
    border-color: var(--accent);
}

.checkbox-row {
    display: flex !important;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox-row input {
    width: auto !important;
    margin: 0 !important;
}

.block-palette {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.block-palette button {
    padding: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    text-align: left;
    transition: all 0.15s;
}

.block-palette button:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent);
}

.canvas-toolbar {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 12px;
}

.canvas-hint {
    color: var(--text-muted);
}

.view-mode-toggle {
    display: inline-flex;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.view-mode-btn {
    padding: 6px 12px;
    border: none;
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.15s;
}

.view-mode-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.view-mode-btn.active {
    background: var(--accent);
    color: #fff;
}

.editor-tabs {
    display: inline-flex;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-right: 8px;
}

.editor-tab-btn {
    padding: 8px 16px;
    border: none;
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.15s;
}

.editor-tab-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.editor-tab-btn.active {
    background: var(--accent);
    color: #fff;
}

.markup-workspace-editor {
    min-width: 0;
    padding: 4px;
}

.markup-code-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.markup-ide {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 42%);
    gap: 16px;
    height: 100%;
    min-height: 520px;
}

.markup-ide-editor {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
}

.markup-ide-toolbar {
    flex-shrink: 0;
    margin-bottom: 6px;
}

.markup-ide-snippets {
    flex-shrink: 0;
    margin-bottom: 6px;
}

.markup-status {
    flex-shrink: 0;
    font-size: 0.75rem;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
}

.markup-status.ok {
    background: var(--success-bg);
    color: var(--success-text);
    border: 1px solid var(--success-border);
}

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

.markup-ide-preview {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.markup-ide-preview .page-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.markup-page-editor {
    flex: 1;
    width: 100%;
    min-height: 0;
    padding: 16px;
    font-family: "JetBrains Mono", "Fira Code", ui-monospace, monospace;
    font-size: 0.85rem;
    line-height: 1.65;
    background: #0d1117;
    color: #e6edf3;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    resize: none;
    tab-size: 2;
}

.markup-ide .markup-help {
    flex-shrink: 0;
    margin-top: 8px;
}

.view-mode-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

@media (max-width: 1100px) {
    .markup-ide {
        grid-template-columns: 1fr;
        height: auto;
    }

    .markup-page-editor {
        min-height: 360px;
    }

    .markup-ide-preview {
        min-height: 300px;
    }
}

.editor-workspace {
    display: grid;
    gap: 0;
    height: 100%;
    min-height: 0;
    align-items: stretch;
}

.editor-workspace.view-split {
    grid-template-columns: 1fr 400px;
}

.editor-workspace.view-edit {
    grid-template-columns: 1fr;
}

.editor-workspace.view-preview {
    grid-template-columns: 1fr;
}

.workspace-split {
    display: grid;
    gap: 0;
    height: 100%;
    min-height: 0;
    align-items: stretch;
}

.workspace-split.view-split {
    grid-template-columns: 1fr 400px;
}

.workspace-split.view-edit {
    grid-template-columns: 1fr;
}

.workspace-split.view-edit .live-preview-panel,
.workspace-split.view-edit .block-preview-pane,
.editor-workspace.view-edit .live-preview-panel,
.editor-workspace.view-edit .markup-preview-panel,
.editor-workspace.view-edit .block-preview-pane {
    display: none;
}

.workspace-split.view-preview .blocks-editor,
.editor-workspace.view-preview .blocks-editor,
.editor-workspace.view-preview .markup-workspace-editor {
    display: none;
}

.live-preview-panel {
    position: sticky;
    top: 73px;
    max-height: calc(100vh - 90px);
    overflow-y: auto;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-left: 16px;
}

.live-preview-header {
    padding: 10px 16px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 2;
}

.live-preview-body {
    padding: 20px;
    max-width: 100%;
}

.blocks-editor {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
    overflow-y: auto;
    max-height: 100%;
    padding-right: 4px;
}

.block-item {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.block-item.sortable-ghost {
    opacity: 0.4;
}

.block-item-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    cursor: grab;
}

.block-item-header:active {
    cursor: grabbing;
}

.drag-handle {
    color: var(--text-muted);
    font-size: 1rem;
    user-select: none;
}

.block-type-label {
    flex: 1;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.block-item-body {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.block-split-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    padding: 0 !important;
}

.block-edit-pane {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-right: 1px solid var(--border);
    min-width: 0;
}

.block-preview-pane {
    padding: 12px;
    background: var(--bg-primary);
    min-width: 0;
}

.block-preview-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.block-preview-inner {
    padding: 0;
    pointer-events: none;
    font-size: 0.9rem;
}

.block-preview-inner .block-button,
.block-preview-inner a {
    pointer-events: none;
}

.block-item-body label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.block-item-body input,
.block-item-body textarea,
.block-item-body select {
    width: 100%;
    padding: 6px 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
}

.block-item-body textarea {
    min-height: 60px;
    resize: vertical;
}

.card-editor-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.card-editor-item {
    padding: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.canvas-preview {
    display: none;
}

.admin-dashboard {
    padding: 24px;
    max-width: 1100px;
    margin: 0 auto;
}

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

.admin-table th {
    text-align: left;
    padding: 8px 12px;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
}

.admin-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.admin-table .actions {
    display: flex;
    gap: 6px;
}

.badge {
    display: inline-block;
    padding: 2px 6px;
    background: var(--accent);
    color: #fff;
    border-radius: 4px;
    font-size: 0.65rem;
    margin-left: 6px;
    vertical-align: middle;
}

.status {
    font-size: 0.8rem;
}

.status.published { color: var(--success-text); }
.status.draft { color: var(--text-muted); }

.category-list {
    list-style: none;
}

.category-list li {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.875rem;
}

.muted {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 20px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    font-size: 0.875rem;
    z-index: 999;
    animation: slideIn 0.2s ease;
}

.toast.success { border-color: var(--success-border); color: var(--success-text); }
.toast.error { border-color: #ef4444; color: #ef4444; }

@keyframes slideIn {
    from { transform: translateY(10px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@media (max-width: 900px) {
    .admin-layout {
        grid-template-columns: 1fr;
    }
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 6px;
    font-size: 0.85rem;
    border-radius: 4px;
}

.btn-icon:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-icon-text {
    font-size: 0.8rem;
}

.btn-danger-outline {
    border-color: #ef444466;
    color: #ef4444;
}

.btn-danger-outline:hover {
    background: #ef444422;
}

.btn-dirty {
    box-shadow: 0 0 0 2px var(--accent-hover);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.block-item-actions {
    display: flex;
    align-items: center;
    gap: 2px;
}

.block-item.collapsed-block .block-item-body {
    display: none;
}

.empty-editor {
    padding: 48px;
    text-align: center;
    color: var(--text-muted);
    border: 2px dashed var(--border);
    border-radius: var(--radius);
}

.card-editor-item-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

.list-item-row {
    display: flex;
    gap: 6px;
    align-items: center;
}

.list-item-row input {
    flex: 1;
}

.table-row-editor {
    display: flex;
    gap: 4px;
    margin-bottom: 4px;
}

.table-row-editor input {
    flex: 1;
    min-width: 0;
}

.table-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.upload-label input[type="file"] {
    font-size: 0.8rem;
}

.upload-preview {
    max-width: 100%;
    max-height: 120px;
    border-radius: var(--radius-sm);
    margin: 8px 0;
    border: 1px solid var(--border);
}

.field-hint {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.icon-preview {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    margin-top: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    min-height: 40px;
}

.icon-preview .wiki-icon-img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.icon-preview .wiki-icon-svg svg {
    width: 24px;
    height: 24px;
}

.panel-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.panel-head h2 {
    margin-bottom: 0;
}

.category-list li {
    align-items: center;
    gap: 12px;
}

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

.category-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal[hidden] {
    display: none;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 420px;
    z-index: 1;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 16px;
}

.markup-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 8px;
}

.markup-tag-btn {
    min-width: 28px;
    height: 28px;
    padding: 0 6px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
}

.markup-tag-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.markup-textarea {
    font-family: var(--font-mono, ui-monospace, monospace);
    font-size: 0.8rem;
    line-height: 1.5;
}

.markup-help {
    margin-top: 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.markup-help summary {
    cursor: pointer;
    user-select: none;
    color: var(--text-secondary);
}

.markup-help ul {
    margin: 8px 0 0;
    padding-left: 1.2em;
}

.markup-help li {
    margin-bottom: 4px;
}

.markup-help code {
    font-size: 0.7rem;
    background: var(--bg-secondary);
    padding: 1px 4px;
    border-radius: 3px;
}

.palette-group {
    margin-bottom: 12px;
}

.palette-group:last-child {
    margin-bottom: 0;
}

.palette-label {
    display: block;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.markup-snippets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
    margin-bottom: 8px;
}

.snippets-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-right: 4px;
}

.markup-snippet-btn {
    padding: 3px 8px;
    font-size: 0.7rem;
    border: 1px dashed var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
}

.markup-snippet-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

@media (max-width: 1200px) {
    .workspace-split.view-split {
        grid-template-columns: 1fr;
    }

    .live-preview-panel {
        position: static;
        max-height: none;
        margin-left: 0;
        margin-top: 16px;
    }

    .block-split-body {
        grid-template-columns: 1fr;
    }

    .block-edit-pane {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
}