/* ============================================================
   Docuflair Core Design System
   Modern UI with optional Dark Mode
   ============================================================ */

/* --- Design Tokens (Light) --- */
:root {
    /* Layout */
    --vk-sidebar-width: 260px;
    --vk-topbar-height: 56px;

    /* Radius */
    --vk-radius-sm: 6px;
    --vk-radius: 10px;
    --vk-radius-lg: 14px;

    /* Transition */
    --vk-transition: 0.2s ease;

    /* Colors - Accent (Docuflair CI Red) */
    --vk-accent: #C0341D;
    --vk-accent-hover: #a02c18;
    --vk-accent-subtle: rgba(192, 52, 29, 0.08);
    --vk-accent-border: rgba(192, 52, 29, 0.25);

    /* Colors - Surfaces */
    --vk-bg-body: #f4f6fa;
    --vk-bg-card: #ffffff;
    --vk-bg-card-hover: #fafbfd;
    --vk-bg-elevated: #ffffff;
    --vk-bg-inset: #f0f2f5;
    --vk-bg-sidebar: #101827;
    --vk-bg-sidebar-hover: rgba(255, 255, 255, 0.06);
    --vk-bg-sidebar-active: var(--vk-accent);
    --vk-bg-topbar: #ffffff;
    --vk-bg-viewer: #4b5563;

    /* Colors - Borders */
    --vk-border: #e3e6ec;
    --vk-border-light: #eef0f4;
    --vk-border-sidebar: rgba(255, 255, 255, 0.08);

    /* Colors - Text */
    --vk-text: #1a1d23;
    --vk-text-secondary: #5f6672;
    --vk-text-muted: #8b919d;
    --vk-text-sidebar: rgba(255, 255, 255, 0.65);
    --vk-text-sidebar-active: #ffffff;
    --vk-text-sidebar-section: rgba(255, 255, 255, 0.35);

    /* Colors - Semantic */
    --vk-success: #16a34a;
    --vk-success-bg: #dcfce7;
    --vk-success-text: #166534;
    --vk-warning: #d97706;
    --vk-warning-bg: #fef3c7;
    --vk-warning-text: #92400e;
    --vk-danger: #dc2626;
    --vk-danger-bg: #fee2e2;
    --vk-danger-text: #991b1b;
    --vk-info-bg: #eff6ff;
    --vk-info-text: #1d4ed8;

    /* Shadows */
    --vk-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --vk-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --vk-shadow: 0 4px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
    --vk-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);

    /* Search highlight */
    --vk-highlight-bg: rgba(254, 240, 138, 0.5);
    --vk-highlight-border: rgba(202, 138, 4, 0.5);
    --vk-highlight-active-bg: rgba(251, 146, 60, 0.55);
    --vk-highlight-active-border: rgba(234, 88, 12, 0.8);
}

/* --- Design Tokens (Dark) --- */
[data-theme="dark"] {
    --vk-bg-body: #0f1117;
    --vk-bg-card: #191c24;
    --vk-bg-card-hover: #1e2130;
    --vk-bg-elevated: #1e2130;
    --vk-bg-inset: #14161e;
    --vk-bg-sidebar: #0d0f15;
    --vk-bg-sidebar-hover: rgba(255, 255, 255, 0.05);
    --vk-bg-topbar: #191c24;
    --vk-bg-viewer: #1a1c24;

    --vk-border: #2a2d38;
    --vk-border-light: #22252e;
    --vk-border-sidebar: rgba(255, 255, 255, 0.06);

    --vk-text: #e4e6eb;
    --vk-text-secondary: #9ca0ab;
    --vk-text-muted: #6b7080;
    --vk-text-sidebar: rgba(255, 255, 255, 0.55);

    --vk-accent: #3b82f6;
    --vk-accent-hover: #60a5fa;
    --vk-accent-subtle: rgba(59, 130, 246, 0.12);
    --vk-accent-border: rgba(59, 130, 246, 0.3);

    --vk-success-bg: rgba(22, 163, 74, 0.15);
    --vk-success-text: #4ade80;
    --vk-warning-bg: rgba(217, 119, 6, 0.15);
    --vk-warning-text: #fbbf24;
    --vk-danger-bg: rgba(220, 38, 38, 0.15);
    --vk-danger-text: #f87171;
    --vk-info-bg: rgba(37, 99, 235, 0.12);
    --vk-info-text: #60a5fa;

    --vk-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
    --vk-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --vk-shadow: 0 4px 12px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.2);
    --vk-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.2);

    --vk-highlight-bg: rgba(250, 204, 21, 0.2);
    --vk-highlight-border: rgba(234, 179, 8, 0.5);
    --vk-highlight-active-bg: rgba(249, 115, 22, 0.35);
    --vk-highlight-active-border: rgba(234, 88, 12, 0.7);

    color-scheme: dark;
}

/* --- Global Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--vk-bg-body);
    color: var(--vk-text);
}

/* Override Bootstrap for dark mode */
[data-theme="dark"] .card {
    background-color: var(--vk-bg-card);
    border-color: var(--vk-border);
    color: var(--vk-text);
}

[data-theme="dark"] .card-header {
    background-color: var(--vk-bg-inset);
    border-color: var(--vk-border);
    color: var(--vk-text);
}

[data-theme="dark"] .card-body {
    color: var(--vk-text);
}

[data-theme="dark"] .table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--vk-text);
    --bs-table-border-color: var(--vk-border);
    --bs-table-hover-bg: var(--vk-bg-card-hover);
    color: var(--vk-text);
}

[data-theme="dark"] .table th {
    color: var(--vk-text-muted);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: var(--vk-bg-inset);
    border-color: var(--vk-border);
    color: var(--vk-text);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background-color: var(--vk-bg-inset);
    border-color: var(--vk-accent);
    color: var(--vk-text);
    box-shadow: 0 0 0 3px var(--vk-accent-subtle);
}

[data-theme="dark"] .form-control::placeholder {
    color: var(--vk-text-muted);
}

[data-theme="dark"] .input-group .btn {
    border-color: var(--vk-border);
}

[data-theme="dark"] .btn-outline-primary {
    color: var(--vk-accent);
    border-color: var(--vk-accent-border);
}

[data-theme="dark"] .btn-outline-secondary {
    color: var(--vk-text-secondary);
    border-color: var(--vk-border);
}

[data-theme="dark"] .btn-outline-warning {
    color: var(--vk-warning-text);
    border-color: var(--vk-warning-bg);
}

[data-theme="dark"] .btn-outline-danger {
    color: var(--vk-danger-text);
    border-color: var(--vk-danger-bg);
}

[data-theme="dark"] .alert-warning {
    background-color: var(--vk-warning-bg);
    border-color: transparent;
    color: var(--vk-warning-text);
}

[data-theme="dark"] .alert-info {
    background-color: var(--vk-info-bg);
    border-color: transparent;
    color: var(--vk-info-text);
}

[data-theme="dark"] .alert-danger {
    background-color: var(--vk-danger-bg);
    border-color: transparent;
    color: var(--vk-danger-text);
}

[data-theme="dark"] .text-dark {
    color: var(--vk-text) !important;
}

[data-theme="dark"] .text-muted {
    color: var(--vk-text-muted) !important;
}

[data-theme="dark"] .breadcrumb-item a {
    color: var(--vk-accent);
}

[data-theme="dark"] .breadcrumb-item.active {
    color: var(--vk-text-muted);
}

[data-theme="dark"] .list-group-item {
    background-color: var(--vk-bg-card);
    border-color: var(--vk-border);
    color: var(--vk-text);
}

[data-theme="dark"] .list-group-item-action:hover {
    background-color: var(--vk-bg-card-hover);
    color: var(--vk-text);
}

[data-theme="dark"] .badge.bg-success {
    background-color: var(--vk-success-bg) !important;
    color: var(--vk-success-text) !important;
}

[data-theme="dark"] .badge.bg-secondary {
    background-color: var(--vk-bg-inset) !important;
    color: var(--vk-text-muted) !important;
}

[data-theme="dark"] .badge.bg-danger {
    background-color: var(--vk-danger-bg) !important;
    color: var(--vk-danger-text) !important;
}

[data-theme="dark"] .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

[data-theme="dark"] dt {
    color: var(--vk-text-muted);
}

[data-theme="dark"] dd {
    color: var(--vk-text);
}

[data-theme="dark"] code {
    color: var(--vk-accent);
    background: var(--vk-accent-subtle);
}

[data-theme="dark"] .spinner-border.text-primary {
    color: var(--vk-accent) !important;
}

/* ============================================================
   Login Page
   ============================================================ */
.velkaris-login-body {
    background-color: var(--vk-bg-body);
}

/* ============================================================
   App Layout
   ============================================================ */
.velkaris-app {
    display: flex;
    min-height: 100vh;
}

/* ============================================================
   Sidebar
   ============================================================ */
.velkaris-sidebar {
    width: var(--vk-sidebar-width);
    background: var(--vk-bg-sidebar);
    color: var(--vk-text-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1000;
    overflow-y: auto;
    border-right: 1px solid var(--vk-border-sidebar);
    transition: transform 0.25s ease;
}

.sidebar-collapsed .velkaris-sidebar {
    transform: translateX(calc(-1 * var(--vk-sidebar-width)));
}

.velkaris-sidebar-brand {
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--vk-border-sidebar);
}

.velkaris-sidebar-brand .brand-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.velkaris-sidebar-nav {
    list-style: none;
    padding: 0.75rem 0.75rem;
    margin: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.velkaris-sidebar-nav .nav-section {
    padding: 1.25rem 0.75rem 0.375rem;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--vk-text-sidebar-section);
    font-weight: 700;
}

.velkaris-sidebar-nav .nav-item a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.55rem 0.875rem;
    color: var(--vk-text-sidebar);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 450;
    border-radius: var(--vk-radius-sm);
    transition: background-color var(--vk-transition), color var(--vk-transition);
}

.velkaris-sidebar-nav .nav-item a:hover {
    background: var(--vk-bg-sidebar-hover);
    color: var(--vk-text-sidebar-active);
}

.velkaris-sidebar-nav .nav-item a.active {
    background: var(--vk-bg-sidebar-active);
    color: var(--vk-text-sidebar-active);
    font-weight: 550;
}

.velkaris-sidebar-nav .nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    opacity: 0.7;
}

.velkaris-sidebar-nav .nav-item a.active .nav-icon {
    opacity: 1;
}

/* ============================================================
   Content Area
   ============================================================ */
.velkaris-content {
    flex: 1;
    margin-left: var(--vk-sidebar-width);
    display: flex;
    flex-direction: column;
    height: 100vh;
    min-height: 0;
    min-width: 0;
    overflow: hidden;
    transition: margin-left 0.25s ease;
}

.sidebar-collapsed .velkaris-content {
    margin-left: 0;
}

/* ============================================================
   TopBar
   ============================================================ */
.velkaris-topbar {
    height: var(--vk-topbar-height);
    background: var(--vk-bg-topbar);
    border-bottom: 1px solid var(--vk-border);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 1.25rem;
    gap: 0.625rem;
    flex-shrink: 0;
}

.velkaris-topbar .tenant-badge {
    background: var(--vk-accent-subtle);
    color: var(--vk-accent);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    border: 1px solid var(--vk-accent-border);
}

.velkaris-topbar .user-info {
    font-size: 0.85rem;
    color: var(--vk-text-secondary);
    font-weight: 450;
}

.velkaris-topbar .btn-sm {
    font-size: 0.8rem;
    border-radius: var(--vk-radius-sm);
}

/* Sidebar toggle button */
.vk-sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1px solid var(--vk-border);
    background: var(--vk-bg-inset);
    border-radius: var(--vk-radius-sm);
    cursor: pointer;
    color: var(--vk-text-secondary);
    transition: background var(--vk-transition), color var(--vk-transition), border-color var(--vk-transition);
    padding: 0;
    flex-shrink: 0;
}

.vk-sidebar-toggle svg {
    width: 16px;
    height: 16px;
}

.vk-sidebar-toggle:hover {
    background: var(--vk-accent-subtle);
    border-color: var(--vk-accent-border);
    color: var(--vk-accent);
}

/* Theme toggle button */
.vk-theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1px solid var(--vk-border);
    background: var(--vk-bg-inset);
    border-radius: var(--vk-radius-sm);
    cursor: pointer;
    color: var(--vk-text-secondary);
    transition: background var(--vk-transition), color var(--vk-transition), border-color var(--vk-transition);
    padding: 0;
    flex-shrink: 0;
}

.vk-theme-toggle:hover {
    background: var(--vk-accent-subtle);
    border-color: var(--vk-accent-border);
    color: var(--vk-accent);
}

.vk-theme-toggle svg {
    width: 18px;
    height: 18px;
}

/* ============================================================
   Main Content
   ============================================================ */
.velkaris-main {
    flex: 1;
    min-height: 0;
    padding: 1.5rem 2rem;
    background: var(--vk-bg-body);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.velkaris-main:has(.velkaris-viewer) {
    padding: 0;
    overflow: hidden;
}

.velkaris-main h1,
.velkaris-main .h1,
.velkaris-main h2,
.velkaris-main .h2,
.velkaris-main h4,
.velkaris-main .h4,
.velkaris-main h5,
.velkaris-main .h5 {
    color: var(--vk-text);
    font-weight: 650;
    letter-spacing: -0.3px;
}

/* ============================================================
   Stat Cards
   ============================================================ */
.velkaris-stat-card {
    background: var(--vk-bg-card);
    border: 1px solid var(--vk-border);
    border-radius: var(--vk-radius);
    padding: 1.25rem;
    box-shadow: var(--vk-shadow-xs);
    transition: border-color var(--vk-transition), box-shadow var(--vk-transition), transform var(--vk-transition);
    overflow: hidden;
    min-width: 0;
    min-height: 88px;
    height: 100%;
    position: relative;
}

.velkaris-stat-card .stat-value {
    font-size: 1.75rem;
    font-weight: 750;
    color: var(--vk-text);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.velkaris-stat-card .stat-label {
    font-size: 0.75rem;
    color: var(--vk-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 550;
    margin-top: 0.125rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.velkaris-stat-card .stat-label.stat-label-wrap {
    white-space: normal;
}

.velkaris-stat-export {
    position: absolute;
    top: 8px;
    right: 8px;
}

.velkaris-stat-clickable {
    cursor: pointer;
}

.velkaris-stat-clickable:hover {
    border-color: var(--vk-accent-border);
    box-shadow: var(--vk-shadow-sm);
    transform: translateY(-1px);
}

.velkaris-stat-clickable.active {
    border-color: var(--vk-accent);
    box-shadow: 0 0 0 3px var(--vk-accent-subtle);
}

.velkaris-stat-error {
    border-color: var(--vk-danger-bg);
    background: var(--vk-danger-bg);
}

.velkaris-stat-error .stat-value {
    color: var(--vk-danger);
}

.velkaris-stat-error:hover {
    border-color: var(--vk-danger);
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.12);
}

.velkaris-stat-error.active {
    border-color: var(--vk-danger);
    box-shadow: 0 0 0 3px var(--vk-danger-bg);
}

.velkaris-stat-pending {
    border-color: #fbbf24;
    background: #fffbeb;
}

.velkaris-stat-pending .stat-value {
    color: #d97706;
}

/* ============================================================
   Repository Cards
   ============================================================ */
.velkaris-repo-card {
    background: var(--vk-bg-card);
    border: 1px solid var(--vk-border);
    border-radius: var(--vk-radius);
    padding: 1.25rem;
    box-shadow: var(--vk-shadow-xs);
    transition: box-shadow var(--vk-transition), transform var(--vk-transition), border-color var(--vk-transition);
}

.velkaris-repo-card:hover {
    box-shadow: var(--vk-shadow);
    transform: translateY(-2px);
    border-color: var(--vk-accent-border);
}

.velkaris-repo-card .repo-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--vk-text);
}

.velkaris-repo-card .repo-desc {
    font-size: 0.85rem;
    color: var(--vk-text-muted);
}

/* ============================================================
   Deletion Policy Badges
   ============================================================ */
.badge-policy-neverdelete {
    background-color: var(--vk-success-bg);
    color: var(--vk-success-text);
}

.badge-policy-retentionperiod {
    background-color: var(--vk-warning-bg);
    color: var(--vk-warning-text);
}

.badge-policy-immediatewithaudit {
    background-color: var(--vk-danger-bg);
    color: var(--vk-danger-text);
}

/* ============================================================
   Loading Spinner
   ============================================================ */
.velkaris-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
}

/* ============================================================
   Table Styling
   ============================================================ */
.velkaris-table {
    background: var(--vk-bg-card);
    border-radius: var(--vk-radius);
    overflow: clip;
    border: 1px solid var(--vk-border);
    box-shadow: var(--vk-shadow-xs);
}

.velkaris-table th {
    background-color: var(--vk-bg-inset);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--vk-text-muted);
    font-weight: 600;
    border-bottom-color: var(--vk-border) !important;
}

.velkaris-table td {
    border-bottom-color: var(--vk-border-light) !important;
    vertical-align: middle;
}

/* ============================================================
   Folder Browser
   ============================================================ */
.velkaris-folder-row:hover td {
    background-color: var(--vk-bg-card-hover);
}

.velkaris-row-failed td {
    color: var(--vk-danger) !important;
}

.velkaris-row-processing td {
    color: var(--vk-text-muted) !important;
}

/* ============================================================
   Grid / Tile View
   ============================================================ */
.velkaris-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.velkaris-grid-item {
    width: 150px;
    cursor: pointer;
    border: 1px solid var(--vk-border);
    border-radius: var(--vk-radius);
    background: var(--vk-bg-card);
    overflow: hidden;
    transition: box-shadow 0.15s, border-color 0.15s;
}

.velkaris-grid-item:hover {
    border-color: var(--vk-primary);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.15);
}

.velkaris-grid-preview {
    width: 150px;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--vk-bg-inset);
    overflow: hidden;
    position: relative;
}

.velkaris-grid-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.velkaris-grid-fallback-icon {
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
}

.velkaris-grid-name {
    padding: 6px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border-top: 1px solid var(--vk-border-light);
}

.velkaris-grid-folder .velkaris-grid-name {
    font-weight: 600;
}

.velkaris-grid-failed {
    border-color: var(--vk-danger-bg);
}

.velkaris-grid-failed:hover {
    border-color: var(--vk-danger);
}

.velkaris-grid-badge {
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.65rem;
    padding: 1px 6px;
    border-radius: 3px;
    color: #fff;
    white-space: nowrap;
}

/* ============================================================
   Upload Dropzone
   ============================================================ */
.velkaris-upload-card {
    border: 1px solid var(--vk-border);
    background: var(--vk-bg-card);
    border-radius: var(--vk-radius);
}

.velkaris-dropzone {
    position: relative;
    border: 2px dashed var(--vk-border);
    border-radius: var(--vk-radius);
    padding: 2rem;
    text-align: center;
    transition: border-color var(--vk-transition), background-color var(--vk-transition);
    cursor: pointer;
}

.velkaris-dropzone:hover,
.velkaris-dropzone.dragover {
    border-color: var(--vk-accent);
    background-color: var(--vk-accent-subtle);
}

.velkaris-dropzone-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

/* Unsichtbares <input type="file">-Overlay: fängt native Drag&Drop und Klick
   auf der gesamten Dropzone-Fläche ab — kein JS-Interop nötig. */
.velkaris-dropzone-input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* ============================================================
   Search Results
   ============================================================ */
.velkaris-search-result:hover {
    background-color: var(--vk-bg-card-hover);
}

.velkaris-search-highlight {
    font-style: italic;
    line-height: 1.6;
}

.velkaris-search-highlight b {
    font-weight: 700;
    color: var(--vk-text);
    background-color: var(--vk-highlight-bg);
    padding: 0 3px;
    border-radius: 3px;
}

/* ============================================================
   Tag Management
   ============================================================ */
.velkaris-tag-dot {
    display: inline-block;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    vertical-align: middle;
}

/* ============================================================
   Document Viewer
   ============================================================ */
.velkaris-viewer {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.velkaris-viewer-toolbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    column-gap: 8px;
    padding: 6px 12px;
    background: var(--vk-bg-card);
    border-bottom: 1px solid var(--vk-border);
    flex-shrink: 0;
    min-height: 44px;
}

.velkaris-toolbar-left { justify-self: start; }
.velkaris-toolbar-center { justify-self: center; }
.velkaris-toolbar-right { justify-self: end; }

.velkaris-viewer-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.velkaris-viewer-sidebar {
    width: 180px;
    min-width: 180px;
    background: var(--vk-bg-inset);
    border-right: 1px solid var(--vk-border);
    overflow-y: auto;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.velkaris-viewer-main {
    flex: 1;
    min-width: 0;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-gutter: stable;
    background: var(--vk-bg-viewer);
    display: flex;
    justify-content: center;
    padding: 16px;
    user-select: none;
    -webkit-user-select: none;
}

.velkaris-pages-stack {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding-bottom: 16px;
}

.velkaris-page-wrapper {
    position: relative;
    line-height: 0;
    box-shadow: var(--vk-shadow-lg);
    scroll-margin-top: 8px;
    background: #fff;
    border-radius: 2px;
    max-width: 100%;
}

.velkaris-page-image {
    display: block;
    width: 100%;
    height: auto;
    background: #fff;
}

.velkaris-page-placeholder {
    width: 100%;
    aspect-ratio: inherit;
    background: var(--vk-bg-inset);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--vk-text-muted);
    font-size: 1.25rem;
}

.velkaris-thumb-item {
    cursor: pointer;
    text-align: center;
    padding: 4px;
    border: 2px solid transparent;
    border-radius: var(--vk-radius-sm);
    transition: border-color var(--vk-transition), background var(--vk-transition);
}

.velkaris-thumb-item:hover {
    border-color: var(--vk-border);
    background: var(--vk-bg-card-hover);
}

.velkaris-thumb-item.active {
    border-color: var(--vk-accent);
    background: var(--vk-accent-subtle);
}

.velkaris-thumb-img-wrapper {
    position: relative;
    overflow: hidden;
    box-shadow: var(--vk-shadow-sm);
    background: #fff;
    line-height: 0;
    border-radius: 2px;
}

.velkaris-thumb-redaction-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.velkaris-thumb-img-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

.velkaris-thumb-label {
    display: block;
    font-size: 0.7rem;
    color: var(--vk-text-muted);
    margin-top: 3px;
    font-weight: 500;
}

.velkaris-page-input {
    width: 48px;
    text-align: center;
    border: 1px solid var(--vk-border);
    border-radius: var(--vk-radius-sm);
    padding: 2px 4px;
    font-size: 0.875rem;
    background: var(--vk-bg-card);
    color: var(--vk-text);
}

.velkaris-zoom-slider {
    width: 120px;
    height: 4px;
    cursor: pointer;
    accent-color: var(--vk-accent);
    vertical-align: middle;
}

.velkaris-zoom-label {
    min-width: 42px;
    text-align: center;
    display: inline-block;
    color: var(--vk-text-secondary);
    font-size: 0.8rem;
}

/* ============================================================
   Right Tool Panel
   ============================================================ */
.velkaris-viewer-toolpanel {
    width: 360px;
    min-width: 360px;
    background: var(--vk-bg-card);
    border-left: 1px solid var(--vk-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.velkaris-toolpanel-search {
    padding: 12px;
    border-bottom: 1px solid var(--vk-border);
    flex-shrink: 0;
}

.velkaris-search-header {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--vk-text);
    margin-bottom: 8px;
}

.velkaris-search-input-row {
    margin-bottom: 6px;
}

.velkaris-search-options {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-bottom: 8px;
}

.velkaris-search-option {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--vk-text-secondary);
    cursor: pointer;
    margin: 0;
}

.velkaris-search-option input[type="checkbox"] {
    margin: 0;
    accent-color: var(--vk-accent);
}

.velkaris-search-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 0;
}

.velkaris-search-results {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--vk-border);
    border-radius: var(--vk-radius-sm);
    margin-top: 6px;
}

.velkaris-search-page-group {
    border-bottom: 1px solid var(--vk-border-light);
}

.velkaris-search-page-group:last-child {
    border-bottom: none;
}

.velkaris-search-page-header {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--vk-text-muted);
    background: var(--vk-bg-inset);
    padding: 3px 8px;
    position: sticky;
    top: 0;
}

.velkaris-search-result-item {
    font-size: 0.8rem;
    padding: 2px 8px 2px 16px;
    cursor: pointer;
    color: var(--vk-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.velkaris-search-result-item:hover {
    background: var(--vk-accent-subtle);
}

.velkaris-search-result-item.active {
    background: var(--vk-accent-subtle);
    color: var(--vk-accent);
    font-weight: 600;
}

/* Tool panel - dropdown selector */
.velkaris-toolpanel-tools {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.velkaris-tool-selector {
    padding: 8px 12px;
    border-bottom: 1px solid var(--vk-border);
    background: var(--vk-bg-inset);
    flex-shrink: 0;
}

.velkaris-tool-content {
    flex: 1;
    overflow-y: auto;
}

/* ============================================================
   Redaction Panel
   ============================================================ */
.velkaris-redaction-panel {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.velkaris-redaction-style-row {
    padding: 8px 12px;
    border-bottom: 1px solid var(--vk-border-light);
}

.velkaris-redaction-dict-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px 4px;
    color: var(--vk-text);
}

.velkaris-redaction-dict-list {
    max-height: 250px;
    overflow-y: auto;
    border: 1px solid var(--vk-border);
    border-radius: var(--vk-radius-sm);
    margin: 0 12px;
}

.velkaris-redaction-dict-item {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    font-size: 0.8rem;
    border-bottom: 1px solid var(--vk-border-light);
    color: var(--vk-text-secondary);
}

.velkaris-dict-delete-btn {
    flex-shrink: 0;
    border: none;
    background: transparent;
    color: var(--vk-text-muted);
    font-size: 1rem;
    line-height: 1;
    padding: 0 2px;
    cursor: pointer;
    transition: color var(--vk-transition);
}

.velkaris-dict-delete-btn:hover {
    color: var(--vk-danger);
}

.velkaris-redaction-dict-item:last-child {
    border-bottom: none;
}

.velkaris-redaction-dict-item.inactive {
    opacity: 0.5;
    text-decoration: line-through;
}

.velkaris-redaction-swatch {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 3px;
    border: 1px solid var(--vk-border);
    flex-shrink: 0;
}

.velkaris-redaction-quickadd {
    padding: 8px 12px;
}

.velkaris-redaction-summary {
    padding: 4px 12px 8px;
    border-top: 1px solid var(--vk-border-light);
    color: var(--vk-text-secondary);
}

/* Redaction overlays on page */
.velkaris-redaction-rect {
    position: absolute;
    pointer-events: none;
}

/* Relation: gleicher Hintergrund wie Einzelwort-Schwärzungen (Blackout-Style),
   nur der Rahmen bleibt braun, damit Relationen visuell unterscheidbar sind. */
.velkaris-redaction-rect.redact-relation {
    border: 4px solid rgba(34, 197, 94, 0.7);
    background: rgba(0, 0, 0, 0.6);
    border-radius: 3px;
    box-sizing: border-box;
}

/* Einzel-Wort-Schwärzungen im Viewer: gleicher Stil wie Relationen
   (Rahmen + dezenter Tint), damit das Originalwort zur Prüfung sichtbar bleibt.
   Die tatsächliche Schwärzung beim Export bleibt davon unberührt. */
.velkaris-redaction-rect.redact-blackout {
    border: 4px solid rgba(220, 38, 38, 0.75);
    background: rgba(0, 0, 0, 0.6);
    border-radius: 3px;
    box-sizing: border-box;
}

.velkaris-redaction-rect.redact-colored {
    border: 4px solid rgba(220, 38, 38, 0.75);
    background: rgba(220, 38, 38, 0.6);
    border-radius: 3px;
    box-sizing: border-box;
}

.velkaris-redaction-rect.redact-highlight {
    border: 4px solid rgba(220, 38, 38, 0.75);
    background: rgba(255, 215, 0, 0.7);
    border-radius: 3px;
    box-sizing: border-box;
}

.velkaris-redaction-rect.redact-blur {
    border: 4px solid rgba(220, 38, 38, 0.75);
    background: rgba(148, 163, 184, 0.65);
    border-radius: 3px;
    box-sizing: border-box;
}

/* Manuell (lokal) geschwärzte Wörter: hellblauer Rahmen zur Unterscheidung
   von Wörterbuch-Schwärzungen. Background kommt vom jeweiligen redact-*-Style. */
.velkaris-redaction-rect.redact-manual {
    border-color: rgba(96, 165, 250, 0.85);
}

.velkaris-redaction-rect.redact-pseudonymize {
    background: #fff;
    color: #000;
    display: flex;
    align-items: center;
    overflow: hidden;
    white-space: nowrap;
    padding: 0 1px;
    font-family: Arial, sans-serif;
    line-height: 1;
    box-sizing: border-box;
}

/* Clickable word overlay for redaction tool */
.velkaris-word-click-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.velkaris-word-clickable {
    position: absolute;
    pointer-events: auto;
    cursor: pointer;
    border: 1px solid transparent;
    border-radius: 2px;
    transition: border-color 0.1s, background-color 0.1s;
    box-sizing: border-box;
}

.velkaris-word-clickable:hover {
    border-color: rgba(59, 130, 246, 0.5);
    background: rgba(59, 130, 246, 0.1);
}

/* Bei bereits geschwärzten Wörtern wird die Optik vom darunterliegenden
   .velkaris-redaction-rect erzeugt — der Klick-Overlay bleibt transparent,
   damit kein doppelter Rahmen entsteht. Nur Hover liefert Klick-Feedback. */
.velkaris-word-clickable.word-dict,
.velkaris-word-clickable.word-dict-relation,
.velkaris-word-clickable.word-manual {
    border-color: transparent;
    background: transparent;
}

.velkaris-word-clickable.word-dict:hover,
.velkaris-word-clickable.word-dict-relation:hover,
.velkaris-word-clickable.word-manual:hover {
    background: rgba(59, 130, 246, 0.12);
}

.velkaris-word-clickable.word-excluded {
    border-color: rgba(34, 197, 94, 0.4);
    background: rgba(34, 197, 94, 0.1);
    border-style: dashed;
}

.velkaris-word-clickable.word-excluded:hover {
    background: rgba(34, 197, 94, 0.2);
}

/* ============================================================
   Search Highlight Overlay
   ============================================================ */
.velkaris-highlight-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.velkaris-highlight-rect {
    position: absolute;
    background: var(--vk-highlight-bg);
    border: 1px solid var(--vk-highlight-border);
    border-radius: 2px;
    transition: background-color 0.15s;
}

.velkaris-highlight-rect.current {
    background: var(--vk-highlight-active-bg);
    border-color: var(--vk-highlight-active-border);
    box-shadow: 0 0 4px rgba(234, 88, 12, 0.4);
}

/* ============================================================
   Area Drawing Overlay
   ============================================================ */
.velkaris-draw-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    cursor: crosshair;
    z-index: 15;
}

.velkaris-draw-rect {
    position: absolute;
    pointer-events: none;
}

/* ============================================================
   OCR Word Bounds Overlay
   ============================================================ */
.velkaris-ocr-bounds-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    user-select: none;
    -webkit-user-select: none;
}

.velkaris-ocr-bound {
    position: absolute;
    border: 1px solid rgba(59, 130, 246, 0.5);
    background: rgba(59, 130, 246, 0.04);
    border-radius: 2px;
    pointer-events: auto;
    cursor: pointer;
    transition: background-color 0.1s, border-color 0.1s;
}

.velkaris-ocr-bound:hover {
    background: rgba(59, 130, 246, 0.18);
    border-color: rgba(59, 130, 246, 0.8);
    box-shadow: 0 0 3px rgba(59, 130, 246, 0.3);
}

.velkaris-ocr-bound.redacted {
    border-color: rgba(168, 85, 247, 0.6);
    background: rgba(168, 85, 247, 0.15);
}

.velkaris-ocr-bound.redacted:hover {
    background: rgba(168, 85, 247, 0.25);
    border-color: rgba(168, 85, 247, 0.9);
}

/* ============================================================
   Area Redaction Editor (Dictionary)
   ============================================================ */
.vk-area-editor {
    user-select: none;
    -webkit-user-select: none;
}

.vk-area-page {
    position: relative;
    width: 240px;
    height: 339px; /* 240 * 297/210 = A4 ratio */
    background: var(--vk-bg-card);
    border: 1px solid var(--vk-border);
    border-radius: var(--vk-radius-sm);
    box-shadow: var(--vk-shadow-sm);
    cursor: crosshair;
    overflow: hidden;
}

.vk-area-gridline {
    position: absolute;
    left: 0;
    right: 0;
    height: 0;
    border-top: 1px dashed var(--vk-border-light);
    pointer-events: none;
}

.vk-area-rect {
    position: absolute;
    background: rgba(220, 38, 38, 0.2);
    border: 2px solid rgba(220, 38, 38, 0.6);
    border-radius: 2px;
    pointer-events: none;
}

.vk-area-rect-drawing {
    background: rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.5);
    border-style: dashed;
}

.vk-area-dim-top {
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.65rem;
    color: var(--vk-text-muted);
    pointer-events: none;
}

.vk-area-dim-side {
    position: absolute;
    right: -28px;
    top: 50%;
    transform: translateY(-50%) rotate(90deg);
    font-size: 0.65rem;
    color: var(--vk-text-muted);
    pointer-events: none;
    white-space: nowrap;
}

/* ============================================================
   Scrollbar Styling
   ============================================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.25);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ============================================================
   Focus & Accessibility
   ============================================================ */
:focus-visible {
    outline: 2px solid var(--vk-accent);
    outline-offset: 2px;
}

h1:focus-visible,
h2:focus-visible,
h3:focus-visible,
h4:focus-visible,
h5:focus-visible,
h6:focus-visible {
    outline: none;
}

/* ============================================================
   Transitions for theme switching
   ============================================================ */
.velkaris-app,
.velkaris-sidebar,
.velkaris-topbar,
.velkaris-main,
.velkaris-stat-card,
.velkaris-repo-card,
.velkaris-table,
.velkaris-viewer-toolbar,
.velkaris-viewer-toolpanel,
.velkaris-viewer-sidebar,
.vk-theme-toggle {
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}