/* ============================================
   Resume Editor Styles
   WCAG 2.2 AA Compliant Color Scheme
   ============================================ */

/* CSS Variables - WCAG 2.2 Compliant Colors */
:root {
    /* Primary Colors - Contrast Ratio 4.5:1+ */
    --color-primary: #0066cc;
    --color-primary-hover: #0052a3;
    --color-primary-active: #004080;
    
    /* Secondary Colors */
    --color-secondary: #6c757d;
    --color-secondary-hover: #5a6268;
    
    /* Neutral Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #e9ecef;
    --color-bg-default: #990000;
    
    /* Text Colors - WCAG AA Compliant */
    --color-text-primary: #212529;
    --color-text-secondary: #495057;
    --color-text-muted: #6c757d;
    
    /* Border Colors */
    --color-border: #dee2e6;
    --color-border-light: #e9ecef;
    
    /* Status Colors */
    --color-success: #28a745;
    --color-danger: #dc3545;
    --color-warning: #ffc107;
    --color-info: #17a2b8;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-bottom: 3px solid #7a0000;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    
    /* Form Element Colors */
    --color-checkbox-bg: #ffffff;
    --color-checkbox-border: #ced4da;
    --color-checkbox-checked: #0066cc;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    overflow: hidden;
}

/* ============================================
   Layout
   ============================================ */

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}

.app-header {
    background-color: var(--color-bg-default);
    border-bottom: 1px solid var(--shadow-bottom);
    box-shadow: var(--shadow-sm);
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 100%;
}

.app-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    /* font-size: var(--font-size-xl);
     font-weight: 600; */
    color: var(--color-bg-primary);
    margin: 0; 
    font-size: 140%; 
    font-family: Verdana, Geneva, 'DejaVu Sans', sans-serif; 
    font-weight: bold;
}

.app-icon {
    color: var(--color-primary);
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ============================================
   Side Panel
   ============================================ */

.side-panel {
    width: 400px;
    min-width: 300px;
    max-width: 800px;
    background-color: var(--color-bg-primary);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base);
    flex-shrink: 0;
    position: relative;
}

.resize-handle {
    position: absolute;
    top: 0;
    right: 0;
    width: 5px;
    height: 100%;
    cursor: ew-resize;
    background-color: transparent;
    z-index: 10;
    transition: background-color var(--transition-fast);
}

.resize-handle:hover,
.resize-handle.resizing {
    background-color: var(--color-primary);
}

.resize-handle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 3px;
    height: 40px;
    background-color: var(--color-border);
    border-radius: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.resize-handle:hover::before {
    opacity: 1;
}

.side-panel.collapsed {
    width: 0;
    transform: translateX(-100%);
    border-right: none;
}

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

.panel-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.panel-content {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.section-tabs {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
    flex-wrap: wrap;
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.tab-btn.active {
    background-color: var(--color-primary);
    color: var(--color-bg-primary);
    border-color: var(--color-primary);
}

.tab-btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.editor-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

/* ============================================
   Preview Area
   ============================================ */

.preview-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg-secondary);
    overflow: hidden;
    position: relative;
}

.btn-show-panel {
    position: absolute;
    top: 70px;
    left: var(--spacing-md);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background-color: var(--color-bg-primary);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

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

.btn-show-panel:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.preview-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
}

.zoom-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.zoom-level {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    min-width: 50px;
    text-align: center;
}

.preview-container {
    flex: 1;
    overflow: auto;
    padding: var(--spacing-xl);
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.a4-page {
    width: 210mm;
    min-height: 297mm;
    background-color: var(--color-bg-primary);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base);
    transform-origin: top center;
    padding: 15mm;
    box-sizing: border-box;
}

/* ============================================
   Form Elements
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

.form-help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.section-subtitle {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border-light);
}

/* Collapsible Sections */
.collapsible-section {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    background: var(--color-bg-secondary);
    overflow: hidden;
}

.collapsible-section summary {
    cursor: pointer;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-primary);
    background: var(--color-bg-secondary);
    border-bottom: none;
    margin: 0;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    transition: background-color 0.2s ease;
}

.collapsible-section summary::-webkit-details-marker {
    display: none;
}

.collapsible-section summary::before {
    content: '▶';
    display: inline-block;
    margin-right: var(--spacing-sm);
    transition: transform 0.2s ease;
    font-size: 0.75em;
    color: var(--color-text-secondary);
}

.collapsible-section[open] summary::before {
    transform: rotate(90deg);
}

.collapsible-section summary:hover {
    background: var(--color-bg-tertiary);
}

.collapsible-section summary:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: -2px;
}

.collapsible-section .section-content {
    padding: var(--spacing-md);
    background: var(--color-bg-primary);
}

/* Collapsible Array Items */
.array-item-collapsible {
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-bg-primary);
    overflow: hidden;
}

.array-item-collapsible summary {
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.array-item-collapsible summary::-webkit-details-marker {
    display: none;
}

.array-item-collapsible .array-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    transition: background-color 0.2s ease;
    position: relative;
}

.array-item-collapsible .array-item-header::before {
    content: '▶';
    display: inline-block;
    margin-right: var(--spacing-sm);
    transition: transform 0.2s ease;
    font-size: 0.75em;
    color: var(--color-text-secondary);
}

.array-item-collapsible[open] .array-item-header::before {
    transform: rotate(90deg);
}

.array-item-collapsible .array-item-header:hover {
    background: var(--color-bg-tertiary);
}

.array-item-collapsible .array-item-content {
    padding: var(--spacing-md);
}

/* Collapsible Nested Objects */
.nested-object-collapsible {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border-light);
    border-radius: 4px;
    background: var(--color-bg-secondary);
    overflow: hidden;
}

.nested-object-collapsible summary {
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.nested-object-collapsible summary::-webkit-details-marker {
    display: none;
}

.nested-object-collapsible .subsection-title {
    padding: var(--spacing-sm) var(--spacing-md);
    margin: 0;
    border: none;
    background: var(--color-bg-secondary);
    transition: background-color 0.2s ease;
    position: relative;
    padding-left: calc(var(--spacing-md) + 1em);
}

.nested-object-collapsible .subsection-title::before {
    content: '▶';
    position: absolute;
    left: var(--spacing-sm);
    transition: transform 0.2s ease;
    font-size: 0.75em;
    color: var(--color-text-secondary);
}

.nested-object-collapsible[open] .subsection-title::before {
    transform: rotate(90deg);
}

.nested-object-collapsible .subsection-title:hover {
    background: var(--color-bg-tertiary);
}

.nested-object-collapsible .nested-object-content {
    padding: var(--spacing-md);
    background: var(--color-bg-primary);
}

/* Debug Mode Overlays */
.debug-overlay {
    position: absolute;
    border: 2px solid rgba(255, 0, 0, 0.8);
    background: rgba(255, 0, 0, 0.05);
    pointer-events: none;
    z-index: 9999;
    font-size: 11px;
    font-weight: bold;
    color: white;
    padding: 0;
    white-space: nowrap;
    overflow: visible;
    font-family: 'Courier New', monospace;
    line-height: 1;
    display: block;
    box-sizing: border-box;
}

.debug-overlay::before {
    content: attr(data-field-name);
    position: absolute;
    top: -18px;
    left: -2px;
    padding: 2px 6px;
    background: rgba(255, 0, 0, 0.9);
    color: white;
    font-size: 10px;
    font-weight: bold;
    border-radius: 3px;
    white-space: nowrap;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    z-index: 10000;
}

.preview-area {
    position: relative;
}

#resumePreview {
    position: relative;
}

.subsection-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-xs);
    border-left: 3px solid var(--color-primary);
}

.nested-object {
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--color-border-light);
    margin-top: var(--spacing-sm);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

.form-checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-checkbox-border);
    border-radius: 3px;
    background-color: var(--color-checkbox-bg);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.form-checkbox:checked {
    background-color: var(--color-checkbox-checked);
    border-color: var(--color-checkbox-checked);
}

.form-checkbox:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.checkbox-label span {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.array-placeholder {
    padding: var(--spacing-md);
    background-color: var(--color-bg-tertiary);
    border: 1px dashed var(--color-border);
    border-radius: 4px;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-align: center;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid transparent;
    border-radius: 4px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

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

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

.btn-success {
    background-color: var(--color-success);
    color: white;
    border-color: var(--color-success);
}

.btn-success:hover {
    background-color: #27ae60;
    border-color: #27ae60;
}

.btn-success:active {
    background-color: #1e8449;
    border-color: #1e8449;
}

.btn-linkedin {
    background-color: #0077b5;
    color: white;
    border-color: #0077b5;
}

.btn-linkedin:hover {
    background-color: #006399;
    border-color: #006399;
}

.btn-linkedin:active {
    background-color: #004f7d;
    border-color: #004f7d;
}

.btn-linkedin svg {
    fill: white;
}

/* Spinning animation for loading states */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.spinning {
    animation: spin 1s linear infinite;
}

/* Print Styles */
@media print {
    /* Hide UI elements (but not resume header) */
    body > .header,
    .controls,
    .resize-handle,
    .form-panel,
    .debug-overlay {
        display: none !important;
    }
    
    /* Make preview full width */
    .preview-panel {
        width: 100% !important;
        max-width: 100% !important;
        height: auto !important;
        max-height: none !important;
        border: none !important;
        box-shadow: none !important;
        margin: 0 !important;
        padding: 0 !important;
        overflow: visible !important;
    }
    
    .main-container {
        height: auto !important;
        max-height: none !important;
        overflow: visible !important;
    }
    
    .preview-container {
        padding: 0 !important;
        margin: 0 !important;
        overflow: visible !important;
        height: auto !important;
        max-height: none !important;
        display: block !important;
    }
    
    .a4-page {
        width: 100% !important;
        min-height: 0 !important;
        max-height: none !important;
        height: auto !important;
        box-shadow: none !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    
    #resumePreview {
        width: 100% !important;
        max-width: 100% !important;
        min-height: auto !important;
        max-height: none !important;
        height: auto !important;
        box-shadow: none !important;
        border: none !important;
        margin: 0 !important;
        padding: 0 !important;
        transform: none !important;
        zoom: 1 !important;
        overflow: visible !important;
    }
    
    /* Ensure content can flow to multiple pages */
    #resumePreview > * {
        max-height: none !important;
        height: auto !important;
    }
    
    /* Page break control - allow breaks but avoid breaking items */
    .section {
        page-break-inside: auto;
        break-inside: auto;
    }
    
    /* Avoid breaking individual items across pages */
    .work-item,
    .education-item,
    .cert-item,
    .skill-item {
        page-break-inside: avoid;
        break-inside: avoid;
        margin-bottom: 1em;
    }
    
    /* Allow breaks between items */
    .work-item + .work-item,
    .education-item + .education-item {
        page-break-before: auto;
        break-before: auto;
    }
    
    /* Force page break after work section if it's long */
    .section:has(.work-item:nth-child(3)) {
        page-break-after: auto;
        break-after: auto;
    }
    
    /* Keep header elements together */
    .header {
        display: block !important;
        page-break-inside: avoid;
        page-break-after: avoid;
    }
    
    .name,
    .contact-info,
    .profiles,
    .job-title {
        page-break-inside: avoid;
    }
    
    /* Section titles should stay with content */
    .section-title {
        page-break-after: avoid;
        margin-top: 1em;
    }
    
    /* Force page breaks where needed */
    .page-break {
        page-break-after: always;
    }
    
    /* Prevent orphans and widows */
    p, li {
        orphans: 2;
        widows: 2;
    }
    
    /* Set page size and enable paged media */
    @page {
        size: A4 portrait;
        margin: 2cm;
    }
    
    /* First page with more top margin */
    @page :first {
        margin-top: 2.5cm;
    }
    
    /* Enable paged media layout */
    html {
        orphans: 2;
        widows: 2;
    }
    
    /* Remove shadows for print but keep colors */
    * {
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    /* Ensure white background for body */
    body, .preview-panel, #resumePreview {
        background: white !important;
    }
    
    /* Keep links visible */
    a {
        text-decoration: underline;
    }
    
    /* Show link URLs after the text */
    a[href]:after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666 !important;
    }
    
    /* Don't show URLs for internal links */
    a[href^="#"]:after,
    a[href^="javascript:"]:after {
        content: "";
    }
    
    /* Force browser to recognize content height */
    html, body {
        height: auto !important;
        overflow: visible !important;
    }
    
    /* Enable color printing */
    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
        color-adjust: exact !important;
    }
}

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

/* ============================================
   Modal Styles
   ============================================ */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

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

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.modal-body {
    flex: 1;
    padding: var(--spacing-lg);
    overflow: auto;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

#jsonEditorTextarea {
    width: 100%;
    height: 500px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', 'source-code-pro', monospace;
    font-size: 13px;
    line-height: 1.5;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    resize: vertical;
    tab-size: 2;
}

#jsonEditorTextarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.error-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: #fee;
    border: 1px solid #fcc;
    border-radius: var(--radius-md);
    color: #c33;
    font-size: 0.875rem;
}

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background-color: var(--color-bg-primary);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-icon:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

.btn-danger:hover {
    background-color: #c82333;
    border-color: #bd2130;
}

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

.btn-success:hover {
    background-color: #218838;
    border-color: #1e7e34;
}

/* ============================================
   Array Items
   ============================================ */

.array-container {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: var(--spacing-md);
    background-color: var(--color-bg-secondary);
}

.array-item {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.array-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border-light);
}

.array-item-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-primary);
}

.array-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-add {
    width: 100%;
    justify-content: center;
    margin-top: var(--spacing-sm);
}

/* ============================================
   Loading & Empty States
   ============================================ */

.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .side-panel {
        width: 350px;
    }
    
    .a4-page {
        transform: scale(0.9);
    }
}

@media (max-width: 768px) {
    .side-panel {
        position: absolute;
        left: 0;
        top: 0;
        height: 100%;
        z-index: 200;
        box-shadow: var(--shadow-lg);
    }
    
    .header-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .app-title {
        font-size: var(--font-size-lg);
    }
    
    .a4-page {
        transform: scale(0.7);
    }
}

@media (max-width: 480px) {
    .side-panel {
        width: 100%;
    }
    
    .section-tabs {
        flex-wrap: nowrap;
    }
    
    .a4-page {
        transform: scale(0.5);
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .app-header,
    .side-panel,
    .preview-toolbar {
        display: none !important;
    }
    
    .preview-container {
        padding: 0;
    }
    
    .a4-page {
        width: 100%;
        min-height: auto;
        box-shadow: none;
        transform: none !important;
    }
    
    body {
        background-color: white;
    }
}

/* ============================================
   Accessibility
   ============================================ */

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Tools Chart Modal Styles */
.chart-container {
    min-height: 400px;
    max-height: 600px;
    background: var(--color-bg-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    width: 100%;
    position: relative;
}

.chart-container canvas {
    width: 100% !important;
    height: auto !important;
    max-height: 550px;
}

/* Timeline Modal Styles */
.modal-large {
    max-width: 1200px;
    width: 95%;
}

.timeline-container {
    min-height: 400px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    overflow-x: auto;
    overflow-y: auto;
    width: 100%;
}

.timeline-container .loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
    color: var(--color-text-muted);
    font-size: 1rem;
}

.timeline-container svg {
    width: 100%;
    max-width: 100%;
    height: auto;
    min-height: 400px;
}

/* Mermaid diagram styling */
#timelineContainer .mermaid {
    display: block;
    width: 100%;
    min-width: 100%;
}

#timelineContainer .mermaid svg {
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-border: #000000;
        --color-text-primary: #000000;
        --color-bg-primary: #ffffff;
    }
}