/* Document Redaction Tool - Professional Government Design */

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

:root {
    /* Color Palette - Government Blue Theme (FOIA.gov style) */
    --color-primary: #1a4480;
    --color-primary-dark: #0d3266;
    --color-primary-light: #2c5aa0;
    --color-primary-hover: #0d3266;

    --color-accent-gradient: linear-gradient(135deg, #1a4480, #0d3266);

    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F5F5F5;
    --color-bg-tertiary: #E8E8E8;
    --color-bg-elevated: #FFFFFF;

    --color-text-primary: #212121;
    --color-text-secondary: #4A4A4A;
    --color-text-tertiary: #757575;

    --color-border: #CCCCCC;
    --color-border-light: #E0E0E0;

    /* Layer Colors (formerly Clearance) */
    --color-layer-1: #C21F4E;
    /* Top Secret equivalent - Pink/Red */
    --color-layer-2: #752669;
    /* Secret equivalent - Purple */
    --color-layer-3: #005BAA;
    /* Confidential equivalent - Blue */
    --color-layer-4: #2AAAE2;
    /* Unclassified equivalent - Light Blue */

    /* Redaction Color */
    --color-redacted: #000000;
    --color-redacted-border: #333333;

    /* Semantic Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #005BAA;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Typography - Government Professional Style (FOIA.gov style) */
    --font-sans: 'Source Sans Pro', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', monospace;
    
    /* Font Weights - Bold for professional appearance */
    --font-weight-normal: 400;
    --font-weight-medium: 600;
    --font-weight-bold: 700;
}

/* Reset & Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 18px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    font-weight: 400;
}

/* Professional Government Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1.2;
}

h1 {
    font-size: 2rem;
    font-weight: 700;
}

h2 {
    font-size: 1.75rem;
    font-weight: 700;
}

h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Scrollbar Styling — light theme everywhere */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f3f4f6;
    border-radius: var(--radius-sm, 4px);
}

::-webkit-scrollbar-thumb {
    background: #e5e7eb;
    border-radius: var(--radius-sm, 4px);
}

::-webkit-scrollbar-thumb:hover {
    background: #d1d5db;
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: #e5e7eb #f3f4f6;
}

/* Layout */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-header {
    background: var(--color-bg-elevated);
    border-bottom: 2px solid var(--color-primary);
    /* Slightly tighter header height */
    padding: 0.35rem var(--space-xl);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    max-width: 1920px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
}

.app-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: var(--shadow-md);
}

.app-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.01em;
}

.app-subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 1.3;
}

.main-content {
    flex: 1;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    padding: var(--space-xl);
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--space-xl);
}

/* Clearance Panel */
.clearance-panel {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    height: fit-content;
    position: sticky;
    top: calc(60px + var(--space-xl));
    box-shadow: var(--shadow-lg);
}

.panel-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.panel-title::before {
    content: '';
    width: 4px;
    height: 1.125rem;
    background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-sm);
}

.clearance-levels {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.clearance-option {
    position: relative;
}

.clearance-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.clearance-label {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    font-weight: 500;
}

.clearance-label:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-border-light);
    transform: translateX(4px);
}

.clearance-option input[type="radio"]:checked+.clearance-label {
    border-color: var(--color-primary);
    background: hsla(220, 90%, 56%, 0.1);
    box-shadow: var(--shadow-md);
}

.clearance-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
    transition: all var(--transition-base);
}

.clearance-option input[type="radio"]:checked+.clearance-label .clearance-indicator {
    box-shadow: 0 0 0 4px hsla(220, 90%, 56%, 0.2);
}

.clearance-indicator.top-secret {
    background: var(--color-top-secret);
}

.clearance-indicator.secret {
    background: var(--color-secret);
}

.clearance-indicator.confidential {
    background: var(--color-confidential);
}

.clearance-indicator.unclassified {
    background: var(--color-unclassified);
}

.clearance-name {
    flex: 1;
    font-size: 0.9375rem;
}

.clearance-level {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    background: var(--color-bg-primary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.panel-divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--space-lg) 0;
}

.export-section {
    margin-top: var(--space-lg);
}

.export-button {
    width: 100%;
    padding: var(--space-md);
    background: var(--color-primary);
    color: white;
    border: 2px solid var(--color-primary-dark);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.export-button:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.export-button:active {
    transform: translateY(0);
}

/* Work Area */
.work-area {
    background: transparent;
    border: none;
    border-radius: 0;
    overflow: hidden;
    box-shadow: none;
    display: flex;
    flex-direction: column;
}

.tab-navigation {
    display: flex;
    background: transparent;
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-sm);
    gap: var(--space-sm);
}

.tab-button {
    flex: 1;
    padding: var(--space-md) var(--space-lg);
    background: transparent;
    color: var(--color-text-secondary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

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

.tab-button.active {
    background: var(--color-bg-secondary);
    color: var(--color-primary);
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.tab-content {
    display: none;
    flex: 1;
    padding: var(--space-xl);
    overflow-y: auto;
    min-height: calc(100vh - 200px);
    width: 100%;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
}

/* Ensure file manager tab is visible when inline style sets display: block */
#files-tab.tab-content[style*="display: block"],
#files-tab.tab-content[style*="display:block"] {
    display: block !important;
}

/* PDF redactor tab: stretch toolbar + side bar to edges, no extra padding */
#pdf-tab.tab-content {
    padding: 0;
    min-height: 0;
    overflow: hidden;
}

/* Buttons */
.btn {
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    font-weight: 700;
    border: 2px solid var(--color-primary-dark);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-border-light);
}

.btn-danger {
    background: var(--color-error);
    color: white;
}

.btn-danger:hover {
    filter: brightness(1.1);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 700;
    color: var(--color-text-primary);
    font-size: 0.9375rem;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px hsla(220, 90%, 56%, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 200px;
    font-family: var(--font-mono);
    line-height: 1.8;
}

/* File Upload */
.file-upload-area {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--color-bg-tertiary);
}

.file-upload-area:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-elevated);
}

.file-upload-area.drag-over {
    border-color: var(--color-primary);
    background: hsla(220, 90%, 56%, 0.05);
    transform: scale(1.02);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

.upload-text {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.upload-hint {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

/* Canvas Container */
.canvas-container {
    position: relative;
    background: var(--color-bg-primary);
    border: none;
    border-radius: var(--radius-md);
    overflow: auto;
    max-height: 80vh;
    min-height: 500px;
    width: 100%;
}

/* Comparison View Styles */
.comparison-view-container {
  display: flex;
  width: 100%;
  max-width: 100%; /* Prevent overflow */
  height: 100%;
  overflow: hidden;
  min-height: 500px;
  position: relative; /* For absolute positioning of close bar */
  box-sizing: border-box; /* Include padding/borders in width */
  /* Flex parent will handle width sizing, this ensures it doesn't exceed parent */
}

.comparison-view-left,
.comparison-view-right {
  flex: 1;
  min-width: 0; /* Allow flex shrink within 50% */
  width: 100%; /* Fixed equal width for both panels */
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: 2px solid #e0e0e0;
  min-height: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.comparison-view-right {
  border-right: none;
  border-left: 2px solid #e0e0e0;
}

.comparison-view-label {
  padding: 0.5rem;
  background: #f5f5f5;
  border-bottom: 1px solid #e0e0e0;
  font-weight: 600;
  font-size: 0.875rem;
  color: #5f6368;
}

.comparison-view-content {
  flex: 1;
  overflow: auto;
  position: relative;
  min-height: 0;
}

.canvas-container canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

/* PDF.js Text Layer Styles */
#pdf-text-layer {
    position: absolute;
    top: 0;
    left: 0;
    overflow: hidden;
    line-height: 1.0;
    user-select: text;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    pointer-events: auto;
}

#pdf-text-layer .textLayer {
    position: absolute;
    left: 0;
    top: 0;
    overflow: hidden;
    opacity: 1;
    line-height: 1.0;
}

#pdf-text-layer .textLayer > span {
    color: transparent;
    position: absolute;
    white-space: pre;
    cursor: text;
    transform-origin: 0% 0%;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
}

#pdf-text-layer .textLayer .highlight {
    margin: -1px;
    padding: 1px;
    background-color: rgba(180, 0, 170, 0.2);
    border-radius: 4px;
}

#pdf-text-layer .textLayer .highlight.selected {
    background-color: rgba(0, 100, 0, 0.2);
}

#pdf-text-layer .textLayer ::selection {
    background: rgba(0, 0, 255, 0.3);
}

#pdf-text-layer .textLayer ::-moz-selection {
    background: rgba(0, 0, 255, 0.3);
}

/* Toolbar */
.toolbar {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
    align-items: center;
}

.toolbar-row {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
    align-items: center;
    border: 1px solid var(--color-border-light);
}

.toolbar-group {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--color-border);
}

/* Google Docs-inspired Unified Toolbar */
.toolbar-unified {
    display: flex;
    align-items: center;
    gap: 0;
    /* Slightly more compact toolbar */
    padding: 0.375rem 0.75rem;
    background: transparent;
    border-bottom: 1px solid #e0e0e0;
    border-radius: 0;
    box-shadow: none;
    margin-bottom: 0.25rem;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
}

.toolbar-section {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0;
    min-height: 40px;
}

.toolbar-btn {
    width: 32px;
    height: 32px;
    padding: 0.375rem;
    border: none;
    background: transparent;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #5f6368;
    transition: background-color 0.15s ease;
    position: relative;
    flex-shrink: 0;
    box-sizing: border-box;
}

.toolbar-btn:hover:not(:disabled):not(.no-hover) {
    background: #e8eaed !important;
}

.toolbar-btn:active:not(:disabled) {
    background: #dadce0;
}

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

.toolbar-btn.active {
    background: #e8f0fe;
    color: #1a73e8;
}

.toolbar-select {
    padding: 0.375rem 0.5rem;
    border: 1px solid transparent;
    background: transparent;
    border-radius: 4px;
    font-size: 0.875rem;
    color: #5f6368;
    cursor: pointer;
    outline: none;
    min-width: 80px;
    transition: background-color 0.15s ease;
}

.toolbar-select:hover:not(:disabled) {
    background: #e8eaed;
}

.toolbar-select:focus {
    background: #ffffff;
    border-color: #1a73e8;
}

.toolbar-select:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Zoom Control in Unified Toolbar */
.toolbar-section .zoom-control {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    border: 1px solid #dadce0;
    border-radius: 4px;
    background-color: white;
    overflow: hidden;
    box-shadow: none;
    background-image: none;
}

.toolbar-section .zoom-btn {
    width: 28px;
    height: 28px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #5f6368;
    transition: background-color 0.15s ease;
    border-right: 1px solid #dadce0;
}

.toolbar-section .zoom-btn:last-of-type {
    border-right: none;
    border-left: 1px solid #dadce0;
}

.toolbar-section .zoom-btn:hover:not(:disabled) {
    background: #e8eaed;
}

.toolbar-section .zoom-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.toolbar-section .zoom-select {
    border: none;
    background: white;
    padding: 0.375rem 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #5f6368;
    cursor: pointer;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%235f6368' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    background-size: 12px 12px;
    padding-right: 1.75rem;
    min-width: 70px;
    text-align: center;
}

/* Fit Options Dropdown */
.toolbar-dropdown-container {
    position: relative;
}

.toolbar-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: auto;
    margin-top: 0.25rem;
    background: white;
    border: 1px solid #dadce0;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    min-width: 160px;
    overflow: hidden;
}

.toolbar-dropdown-item {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: none;
    background: transparent;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #5f6368;
    font-size: 0.875rem;
    transition: background-color 0.15s ease;
}

.toolbar-dropdown-item:hover:not(:disabled) {
    background: #f1f3f4;
}

.toolbar-dropdown-item:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Pagination in Unified Toolbar */
.toolbar-section .pagination-control {
    display: inline-flex;
    align-items: center;
    border: 1px solid #dadce0;
    border-radius: 4px;
    background-color: white;
    overflow: hidden;
    box-shadow: none;
    padding: 0.125rem;
}

.toolbar-section .pagination-btn {
    width: 28px;
    height: 28px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #5f6368;
    transition: background-color 0.15s ease;
    border-right: 1px solid #dadce0;
}

.toolbar-section .pagination-btn:last-of-type {
    border-right: none;
}

.toolbar-section .pagination-btn:hover:not(:disabled) {
    background: #e8eaed;
}

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

.toolbar-section .pagination-input {
    border: none;
    background: transparent;
    padding: 0.25rem 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    outline: none;
    color: #5f6368;
    width: 45px;
}

.toolbar-section .pagination-input:focus {
    background-color: #f1f3f4;
    border-radius: 4px;
}

.toolbar-section .pagination-text {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: #5f6368;
    margin: 0 0.5rem;
    white-space: nowrap;
}

/* Standalone Pagination Control - Separate from Toolbar */
.pagination-control-standalone {
    display: inline-flex;
    align-items: center;
    border: none;
    border-radius: 0;
    background-color: transparent;
    overflow: hidden;
    padding: 0.25rem;
    gap: 0.125rem;
}

.pagination-btn-standalone {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #5f6368;
    transition: all 0.2s ease;
    border-radius: 4px;
}

.pagination-btn-standalone:hover:not(:disabled) {
    background: #e8eaed;
    color: #1a73e8;
}

.pagination-btn-standalone:active:not(:disabled) {
    background: #dadce0;
    transform: scale(0.95);
}

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

.pagination-input-standalone {
    border: 1px solid #dadce0;
    background: white;
    padding: 0.25rem 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    outline: none;
    color: #5f6368;
    width: 55px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.pagination-input-standalone:focus {
    background-color: #f8f9fa;
    border-color: #1a73e8;
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.1);
}

.pagination-input-standalone:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: #f5f5f5;
}

.pagination-text-standalone {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: #5f6368;
    margin: 0 0.25rem;
    white-space: nowrap;
    font-weight: 500;
}

.pagination-toolbar {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    padding: var(--space-sm) var(--space-md);
}

/* Professional Pagination Control */
.pagination-control {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: white;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.2s;
}

.pagination-control:hover {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.pagination-control button {
    border: none;
    background: transparent;
    padding: 0.375rem 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    transition: background-color 0.2s;
}

.pagination-control button:hover:not(:disabled) {
    background-color: var(--color-bg-secondary);
}

.pagination-control button:disabled {
    cursor: not-allowed;
    color: #ccc;
}

.pagination-control input {
    border: none;
    background: transparent;
    padding: 0.25rem 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    outline: none;
    color: var(--color-text-primary);
    width: 50px;
}

.pagination-control input:focus {
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
}

.pagination-control input:disabled {
    cursor: not-allowed;
    color: #ccc;
}

/* Professional Zoom Control */
.zoom-control {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: white;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.2s;
}

.zoom-control:hover {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.zoom-control button {
    border: none;
    background: transparent;
    padding: 0.375rem 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    transition: background-color 0.2s;
}

.zoom-control button:hover:not(:disabled) {
    background-color: var(--color-bg-secondary);
}

.zoom-control button:disabled {
    cursor: not-allowed;
    color: #ccc;
}

.zoom-control select {
    border: none;
    background: transparent;
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
    cursor: pointer;
    outline: none;
    appearance: none;
    min-width: 90px;
    text-align: center;
}

.zoom-control select:disabled {
    cursor: not-allowed;
    color: #ccc;
}

/* Tooltip for view mode buttons */
.toolbar-group button[title] {
    position: relative;
}

.toolbar-group button[title]:hover::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 0.5rem;
    padding: 0.375rem 0.75rem;
    background-color: rgba(0, 0, 0, 0.85);
    color: white;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
    border-radius: var(--radius-sm);
    pointer-events: none;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.toolbar-group button[title]:hover::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    margin-bottom: 0.25rem;
    border: 4px solid transparent;
    border-top-color: rgba(0, 0, 0, 0.85);
    pointer-events: none;
    z-index: 1000;
}

/* Redaction Badge */
.redaction-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.redaction-badge.top-secret {
    background: rgba(194, 31, 78, 0.1);
    color: var(--color-layer-1);
    border: 1px solid var(--color-layer-1);
}

.redaction-badge.secret {
    background: rgba(117, 38, 105, 0.1);
    color: var(--color-layer-2);
    border: 1px solid var(--color-layer-2);
}

.redaction-badge.confidential {
    background: rgba(0, 91, 170, 0.1);
    color: var(--color-layer-3);
    border: 1px solid var(--color-layer-3);
}

.redaction-badge.unclassified {
    background: rgba(42, 170, 226, 0.1);
    color: var(--color-layer-4);
    border: 1px solid var(--color-layer-4);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-base) ease-out;
}

.slide-in {
    animation: slideIn var(--transition-base) ease-out;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

.mt-sm {
    margin-top: var(--space-sm);
}

.mt-md {
    margin-top: var(--space-md);
}

.mt-lg {
    margin-top: var(--space-lg);
}

.mb-sm {
    margin-bottom: var(--space-sm);
}

.mb-md {
    margin-bottom: var(--space-md);
}

.mb-lg {
    margin-bottom: var(--space-lg);
}

/* Responsive */
@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .clearance-panel {
        position: static;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .tab-navigation {
        flex-direction: column;
    }

    .main-content {
        padding: var(--space-md);
    }
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-accent);
    color: var(--color-text-primary);
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast-icon {
    font-size: 1.25rem;
}

/* File Manager Styles */
.files-container,
.file-manager-container {
    background: transparent;
    border-radius: var(--radius-md);
    border: none;
    overflow: hidden;
    padding: var(--space-lg);
}

.file-list-section {
    width: 100%;
    background: var(--color-bg-primary);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    border: none;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: none;
}

.files-table,
.file-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    background: var(--color-bg-primary);
}

.files-table th,
.files-table td,
.file-table th,
.file-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.files-table th,
.file-table th {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    font-weight: 700;
}

.files-table tr:last-child td,
.file-table tr:last-child td {
    border-bottom: none;
}

.files-table tr:hover,
.file-table tr:hover {
    background: var(--color-bg-tertiary);
}

.file-action-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    color: #5f6368;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.file-action-btn:hover {
    background: #e8eaed;
    color: #1a73e8;
    transform: translateY(-1px);
}

.file-action-btn:active {
    transform: translateY(0);
    background: #dadce0;
}

.file-action-btn.delete:hover {
    background: #fce8e6;
    color: #d93025;
}

.file-action-btn svg {
    display: block;
    width: 100%;
    height: 100%;
}

/* Metadata Panel */
.metadata-panel {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    padding: var(--space-lg);
}

.metadata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-md);
}

.metadata-item {
    background: var(--color-bg-primary);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border-light);
}

.metadata-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metadata-value {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-primary);
    word-break: break-all;
}

/* Login Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

/* Hide modal when hidden class is added */
.modal-overlay.hidden {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
    z-index: -1 !important;
    position: fixed !important;
    top: -9999px !important;
    left: -9999px !important;
}

.modal-overlay.hidden .modal-content {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
}

/* Hide modal when data-hidden attribute is set */
#login-modal[data-hidden="true"] {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
    z-index: -1 !important;
    position: fixed !important;
    top: -9999px !important;
    left: -9999px !important;
}

#login-modal[data-hidden="true"] .modal-content {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
}

/* Additional rule to ensure modal is hidden when display is none */
#login-modal[style*="display: none"],
#login-modal[style*="display:none"] {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
    z-index: -1 !important;
    position: fixed !important;
    top: -9999px !important;
    left: -9999px !important;
}

#login-modal[style*="display: none"] .modal-content,
#login-modal[style*="display:none"] .modal-content {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
}

.modal-content {
    background: var(--color-bg-primary);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--color-border);
}

/* Settings Modal Specific Styles */
#settings-modal .modal-content {
    max-width: 700px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

#settings-modal .modal-content::-webkit-scrollbar {
    width: 8px;
}

#settings-modal .modal-content::-webkit-scrollbar-track {
    background: #f3f4f6;
    border-radius: 4px;
}

#settings-modal .modal-content::-webkit-scrollbar-thumb {
    background: #e5e7eb;
    border-radius: 4px;
}

#settings-modal .modal-content::-webkit-scrollbar-thumb:hover {
    background: #d1d5db;
}

.modal-content .form-group {
    margin-bottom: var(--space-md);
}

.modal-content .btn {
    margin-top: var(--space-md);
}