/* PDF Editor Styles */

.editor-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 73px);
    overflow: hidden;
}

/* Toolbar */
.editor-toolbar {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--color-border);
    margin: 0 var(--spacing-2);
}

.toolbar-spacer {
    flex: 1;
}

.toolbar-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    background: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toolbar-btn:hover:not(:disabled) {
    background: var(--color-bg-secondary);
    color: var(--color-text);
}

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

.toolbar-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.toolbar-btn.btn-primary {
    background: var(--color-primary);
    color: white;
}

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

.zoom-level {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    min-width: 50px;
    text-align: center;
}

/* Text Formatting Controls */
.text-format-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.toolbar-label {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.toolbar-label:hover {
    background: var(--color-bg-secondary);
}

.color-picker-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.color-preview {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    display: inline-block;
}

.toolbar-select {
    padding: var(--spacing-1) var(--spacing-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    cursor: pointer;
    min-width: 60px;
}

.toolbar-select:hover {
    border-color: var(--color-border-dark);
}

.toolbar-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Properties Panel */
.properties-panel {
    position: fixed;
    right: 0;
    top: 73px;
    width: 280px;
    height: calc(100vh - 73px);
    background: var(--color-bg);
    border-left: 1px solid var(--color-border);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: 50;
}

.properties-panel.open {
    transform: translateX(0);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
}

.panel-header h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
}

.panel-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--color-text-secondary);
}

.panel-content {
    padding: var(--spacing-4);
    overflow-y: auto;
    height: calc(100% - 60px);
}

/* Main Editor */
.editor-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.editor-sidebar {
    width: 160px;
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    padding: var(--spacing-3) var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-header h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-2);
}

.sidebar-footer {
    padding: var(--spacing-2);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: center;
}

.sidebar-btn {
    padding: var(--spacing-2);
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.sidebar-btn:hover {
    background: var(--color-bg);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.sidebar-footer {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-1);
    justify-content: center;
}

/* Page Thumbnails */
.page-thumbnail {
    position: relative;
    margin-bottom: var(--spacing-2);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.page-thumbnail:hover {
    border-color: var(--color-border-dark);
}

.page-thumbnail.active {
    border-color: var(--color-primary);
}

.page-thumbnail canvas {
    width: 100%;
    display: block;
}

.page-thumbnail-number {
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
}

/* Canvas Wrapper */
.editor-canvas-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.editor-canvas {
    flex: 1;
    overflow: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: var(--spacing-4);
    background: var(--color-bg-tertiary);
}

/* Welcome State */
.editor-welcome {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.editor-welcome .upload-zone {
    max-width: 400px;
}

/* PDF Viewer */
.pdf-viewer {
    position: relative;
    box-shadow: var(--shadow-lg);
    background: white;
}

.pdf-viewer canvas {
    display: block;
}

#annotationCanvas {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: auto;
}

/* Fabric.js creates a wrapper div - position it correctly over the PDF canvas */
.pdf-viewer .canvas-container {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
}

/* Text Layer - used for edit mode indicator */
.text-layer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 2;
}

.text-layer.active {
    z-index: 10;
    cursor: text;
}

/* Visual indicator for edit text mode */
.text-layer.active::before {
    content: 'Click on text to edit (or click anywhere to add new text)';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(59, 130, 246, 0.95);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 13px;
    font-weight: 500;
    z-index: 100;
    pointer-events: none;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    0% { opacity: 0; transform: translateX(-50%) translateY(-10px); }
    100% { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Editable text box overlay */
.text-edit-overlay {
    position: absolute;
    background: white;
    border: 2px solid var(--color-primary);
    padding: 4px 8px;
    font-family: inherit;
    resize: none;
    outline: none;
    z-index: 100;
    min-width: 100px;
    min-height: 24px;
    box-shadow: var(--shadow-md);
}

/* Page Navigation */
.page-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-4);
    padding: var(--spacing-3);
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

.page-nav-btn {
    padding: var(--spacing-2);
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.page-nav-btn:hover:not(:disabled) {
    background: var(--color-bg-secondary);
    color: var(--color-text);
}

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

#pageInfo {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

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

.modal.hidden {
    display: none;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
}

.modal-content {
    position: relative;
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) var(--spacing-6);
    border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-text-secondary);
    line-height: 1;
}

.modal-body {
    padding: var(--spacing-6);
}

.modal-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-sm);
}

/* Merge Modal */
.merge-file-list {
    margin-bottom: var(--spacing-4);
    max-height: 200px;
    overflow-y: auto;
}

.merge-file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-2);
}

.merge-file-item .file-name {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.merge-file-item .file-remove {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--spacing-1);
}

.merge-file-item .file-remove:hover {
    color: var(--color-danger);
}

.upload-zone.small {
    padding: var(--spacing-4);
}

.upload-zone.small p {
    font-size: var(--font-size-sm);
}

/* Split Modal */
.split-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.radio-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.radio-option:hover {
    background: var(--color-bg-secondary);
}

.radio-option input[type="radio"] {
    accent-color: var(--color-primary);
}

.split-range-inputs {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-left: var(--spacing-6);
    padding: var(--spacing-2);
}

.split-range-inputs.hidden {
    display: none;
}

.form-input.small {
    width: 80px;
    padding: var(--spacing-2);
    font-size: var(--font-size-sm);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--color-border);
}

/* Signature Modal */
.signature-tabs {
    display: flex;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
}

.signature-tab {
    flex: 1;
    padding: var(--spacing-2) var(--spacing-4);
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.signature-tab.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.signature-content > div {
    display: none;
}

.signature-content > div.active {
    display: block;
}

#signatureCanvas {
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: crosshair;
}

.signature-type {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.loading-overlay.hidden {
    display: none;
}

.loading-content {
    text-align: center;
}

.loading-content .spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto var(--spacing-4);
}

/* Property Controls */
.property-group {
    margin-bottom: var(--spacing-4);
}

.property-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
    color: var(--color-text-secondary);
}

.property-row {
    display: flex;
    gap: var(--spacing-2);
    align-items: center;
}

.color-picker {
    width: 32px;
    height: 32px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    padding: 0;
}

.range-input {
    flex: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .editor-sidebar {
        display: none;
    }

    .tools-group {
        overflow-x: auto;
    }

    .toolbar-btn span {
        display: none;
    }

    .properties-panel {
        width: 100%;
    }
}

/* Premium Feature Button */
.btn-premium-feature {
    position: relative;
    opacity: 0.85;
}

.btn-premium-feature:hover {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-color: #f59e0b;
}

/* Notifications */
.editor-notification {
    position: fixed;
    top: 80px;
    right: 20px;
    padding: 12px 40px 12px 16px;
    border-radius: var(--radius-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideInRight 0.3s ease;
    max-width: 400px;
}

.editor-notification button {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--color-text-secondary);
    line-height: 1;
}

.notification-success {
    background: #ecfdf5;
    border-color: #10b981;
    color: #065f46;
}

.notification-error {
    background: #fef2f2;
    border-color: #ef4444;
    color: #991b1b;
}

.notification-info {
    background: #eff6ff;
    border-color: #3b82f6;
    color: #1e40af;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}