/* VB6Parse Playground Styles */

/* Override body for playground full-height layout */
body {
    height: 100vh;
    min-height: 100vh;
    overflow: hidden;
    margin: 0;
}

/* ============================================
   Compact Playground Header
   ============================================ */
.playground-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 12px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
}

.playground-header .container {
    max-width: 100%;
    padding: 0 20px;
}

.playground-header .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.playground-header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.playground-header .header-left {
    display: flex;
    align-items: center;
}

.playground-header .header-right {
    display: flex;
    gap: 20px;
    align-items: center;
    position: relative;
}

.playground-header .header-link {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    transition: opacity 0.2s;
}

.playground-header .header-link:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* ============================================
   CSS Variables for Playground Theme
   ============================================ */
:root {
    /* Layout dimensions */
    --toolbar-height: 60px;
    --panel-header-height: 50px;
    --panel-footer-height: 40px;
    --tab-nav-height: 50px;
    --resizer-width: 8px;
    
    /* Playground-specific colors */
    --editor-bg: #1e1e1e;
    --editor-text: #d4d4d4;
    --panel-bg: var(--background-color);
    --panel-border: var(--border-color);
    --toolbar-bg: #f8f9fa;
    --tab-bg: #e9ecef;
    --tab-active-bg: var(--background-color);
    --placeholder-color: #999;
    
    /* Tree node colors */
    --node-statement: #3b82f6;
    --node-expression: #10b981;
    --node-literal: #f59e0b;
    --node-keyword: #8b5cf6;
    --node-default: #6b7280;
    
    /* Status colors */
    --status-success: #10b981;
    --status-error: #ef4444;
    --status-warning: #f59e0b;
}

[data-theme="dark"] {
    --toolbar-bg: #2d2d2d;
    --tab-bg: #1e1e1e;
    --tab-active-bg: var(--background-color);
    --panel-bg: #1a1a1a;
    --panel-border: #404040;
}

/* ============================================
   Playground Container Layout
   ============================================ */
.playground-toolbar {
    background-color: var(--toolbar-bg);
    border-bottom: 2px solid var(--panel-border);
    padding: 10px 0;
    flex-shrink: 0;
    z-index: 100;
}

.toolbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.toolbar-left label {
    font-weight: 600;
    font-size: 0.9rem;
}

/* Selectors and inputs */
.file-type-selector,
.examples-selector,
.search-input,
.filter-select {
    padding: 8px 12px;
    border: 1px solid var(--panel-border);
    border-radius: 4px;
    background-color: var(--background-color);
    color: var(--text-color);
    font-size: 0.9rem;
}

.file-type-selector {
    min-width: 150px;
}

.examples-selector {
    min-width: 200px;
}

/* Buttons */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 36px;
    box-sizing: border-box;
}

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

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

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

.btn-icon {
    font-size: 1rem;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
    font-size: 0.9rem;
}

/* Theme toggle in playground header */
.playground-header .theme-toggle {
    position: relative;
    right: auto;
    margin-left: 16px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.playground-header .theme-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.playground-header .theme-toggle:active {
    transform: scale(0.95);
}

.playground-header .theme-icon {
    line-height: 1;
    display: inline-block;
}

/* ============================================
   Playground Footer
   ============================================ */

.playground-footer {
    padding: 8px 0;
    flex-shrink: 0;
    font-size: 0.85rem;
}

.playground-footer .footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.footer-left {
    white-space: nowrap;
    flex: 0 0 auto;
    text-align: left;
}

.footer-right {
    white-space: nowrap;
    flex: 0 0 auto;
    text-align: right;
    margin-left: auto;
}

@media (max-width: 768px) {
    .playground-footer .footer-content {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

/* ============================================
   Split Panel Layout
   ============================================ */
.playground-container {
    display: flex;
    flex: 1;
    min-height: 0; /* Allow flex item to shrink below content size */
    overflow: hidden;
    background-color: var(--panel-bg);
}

/* Editor Panel (Left) */
.editor-panel {
    display: flex;
    flex-direction: column;
    width: 50%;
    min-width: 300px;
    border-right: 1px solid var(--panel-border);
}

/* Resizer */
.resizer {
    width: var(--resizer-width);
    background-color: var(--panel-border);
    cursor: col-resize;
    position: relative;
    flex-shrink: 0;
    transition: background-color 0.2s;
}

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

.resizer-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 3px;
    height: 40px;
    background-color: var(--text-color);
    opacity: 0.3;
    border-radius: 2px;
}

/* Output Panel (Right) */
.output-panel {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 300px;
}

/* ============================================
   Panel Headers and Footers
   ============================================ */
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background-color: var(--toolbar-bg);
    border-bottom: 1px solid var(--panel-border);
    height: var(--panel-header-height);
}

.panel-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.panel-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 20px;
    background-color: var(--toolbar-bg);
    border-top: 1px solid var(--panel-border);
    height: var(--panel-footer-height);
    font-size: 0.85rem;
}

.editor-status {
    font-size: 0.85rem;
    color: var(--text-color);
    opacity: 0.8;
}

.code-stats {
    color: var(--text-color);
    opacity: 0.7;
}

/* ============================================
   Editor Container
   ============================================ */
.editor-container {
    flex: 1;
    overflow: hidden;
    background-color: var(--editor-bg);
    color: var(--editor-text);
    /* Monaco/Ace editor will fill this */
}

/* Monaco Editor CST Node Highlight */
.cst-node-highlight {
    background-color: rgba(255, 200, 0, 0.25);
    border: 1px solid rgba(255, 200, 0, 0.5);
}

[data-theme="dark"] .cst-node-highlight {
    background-color: rgba(255, 200, 0, 0.15);
    border: 1px solid rgba(255, 200, 0, 0.35);
}

/* TODO: Configure Monaco editor theme in editor.js */
/* TODO: Add VB6 syntax highlighting definition */

/* ============================================
   Tab Navigation
   ============================================ */
.tab-nav {
    display: flex;
    background-color: var(--tab-bg);
    border-bottom: 2px solid var(--panel-border);
    height: var(--tab-nav-height);
}

.tab-btn {
    flex: 1;
    padding: 12px 20px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-color);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-bottom: 3px solid transparent;
}

.tab-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .tab-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

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

.tab-icon {
    font-size: 1.2rem;
}

/* ============================================
   Tab Content
   ============================================ */
.tab-content {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.tab-pane {
    display: none;
    flex-direction: column;
    height: 100%;
}

.tab-pane.active {
    display: flex;
}

/* Tab Toolbars */
.tab-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background-color: var(--toolbar-bg);
    border-bottom: 1px solid var(--panel-border);
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 200px;
}

.filter-select {
    min-width: 150px;
}

/* ============================================
   Tokens Tab Content
   ============================================ */
.tokens-content {
    flex: 1;
    overflow-y: auto;
    
}

.tokens-table {
    width: 100%;
    border-collapse: collapse;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.tokens-table thead {
    position: sticky;
    top: 0;
    background-color: var(--toolbar-bg);
    border-bottom: 2px solid var(--panel-border);
}

.tokens-table th,
.tokens-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--panel-border);
}

.tokens-table th {
    font-weight: 600;
}

.tokens-table tr:hover {
    background-color: rgba(0, 0, 0, 0.02);
    cursor: pointer;
}

[data-theme="dark"] .tokens-table tr:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Highlighted token row (when clicked from editor) */
.tokens-table tr.highlighted {
    background-color: rgba(59, 130, 246, 0.15);
    border-left: 3px solid var(--primary-color);
}

[data-theme="dark"] .tokens-table tr.highlighted {
    background-color: rgba(59, 130, 246, 0.25);
}

/* Token type badges */
.token-type {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 600;
}

.token-type { background-color: #e5e7eb2a; color: white; }
.token-type.keyword { background-color: var(--node-keyword); color: white; }
.token-type.identifier { background-color: #6b7280; color: white; }
.token-type.literal { background-color: var(--node-literal); color: white; }
.token-type.operator { background-color: #ec4899; color: white; }
.token-type.comment { background-color: #22c55e; color: white; }
.token-type.whitespace { background-color: #7eadf3; color: black; }
.token-type.newline { background-color: #0a036dd3; color: white; }


/* ============================================
   CST Tab Content
   ============================================ */
.cst-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
}

.cst-node {
    margin-left: 20px;
    position: relative;
}

.cst-node::before {
    content: '';
    position: absolute;
    left: -15px;
    top: 0;
    bottom: 0;
    width: 1px;
    background-color: var(--panel-border);
}

.cst-node-header {
    padding: 4px 8px;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.cst-node-header:hover {
    background-color: rgba(0, 0, 0, 0.05);
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.3);
}

[data-theme="dark"] .cst-node-header:hover {
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.5);
}

/* Highlighted CST node (when clicked from editor) */
.cst-node.highlighted > .cst-node-header {
    background-color: rgba(59, 130, 246, 0.15);
    border-left: 3px solid var(--primary-color);
    padding-left: 5px;
}

[data-theme="dark"] .cst-node.highlighted > .cst-node-header {
    background-color: rgba(59, 130, 246, 0.25);
}

.cst-node-toggle {
    cursor: pointer;
    user-select: none;
    font-weight: bold;
    color: var(--primary-color);
}

.cst-node-name {
    font-weight: 600;
    color: var(--primary-color);
}

.cst-node-range {
    color: var(--placeholder-color);
    font-size: 0.85rem;
}

.cst-node-children {
    display: block;
}

.cst-node.collapsed .cst-node-children {
    display: none;
}

.cst-node.collapsed .cst-node-toggle::before {
    content: '▶ ';
}

.cst-node:not(.collapsed) .cst-node-toggle::before {
    content: '▼ ';
}

/* ============================================
   Tree Visualization Tab
   ============================================ */
.tree-viz-container {
    flex: 1;
    overflow: hidden;
    position: relative;
    background-color: var(--panel-bg);
}

#tree-viz-svg {
    width: 100%;
    height: 100%;
}

/* Tree nodes */
.tree-node {
    cursor: pointer;
}

.tree-node circle {
    fill: var(--node-default);
    stroke: var(--text-color);
    stroke-width: 2px;
    transition: all 0.3s;
}

.tree-node:hover circle {
    stroke-width: 3px;
    filter: brightness(1.2);
}

.tree-node text {
    font-size: 12px;
    fill: var(--text-color);
    pointer-events: none;
}

/* Tree links */
.tree-link {
    fill: none;
    stroke: var(--panel-border);
    stroke-width: 2px;
}

/* Tree node details sidebar */
.tree-node-details {
    position: absolute;
    top: 60px;
    right: 20px;
    width: 250px;
    max-height: 80%;
    background-color: var(--background-color);
    border: 1px solid var(--panel-border);
    border-radius: 6px;
    padding: 15px;
    overflow-y: auto;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.tree-node-details.hidden {
    display: none;
}

.tree-node-details h4 {
    margin-top: 0;
    font-size: 1rem;
}

/* Tree legend */
.tree-legend {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-left: auto;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    border: 1px solid var(--panel-border);
}

/* ============================================
   Info Tab Content
   ============================================ */
.info-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.info-section {
    margin-bottom: 30px;
}

.info-section h4 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.1rem;
    color: var(--primary-color);
}

.info-section.hidden {
    display: none;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.stat-item {
    padding: 15px;
    background-color: var(--code-background);
    border-radius: 6px;
    border: 1px solid var(--panel-border);
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--placeholder-color);
    margin-bottom: 5px;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Errors and Warnings Lists */
.errors-list,
.warnings-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.error-item,
.warning-item {
    padding: 12px;
    border-radius: 6px;
    border-left: 4px solid;
    cursor: pointer;
    transition: background-color 0.2s;
}

.error-item {
    background-color: rgba(239, 68, 68, 0.1);
    border-left-color: var(--status-error);
}

.warning-item {
    background-color: rgba(245, 158, 11, 0.1);
    border-left-color: var(--status-warning);
}

.error-item:hover,
.warning-item:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.error-header,
.warning-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.error-type,
.warning-type {
    font-weight: 600;
}

.error-location,
.warning-location {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--placeholder-color);
}

.error-message,
.warning-message {
    font-size: 0.9rem;
}

/* ============================================
   Placeholder States
   ============================================ */
.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--placeholder-color);
    font-size: 1.1rem;
    text-align: center;
}

.placeholder.hidden {
    display: none;
}

/* ============================================
   Loading Overlay
   ============================================ */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

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

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 6px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay p {
    margin-top: 20px;
    color: white;
    font-size: 1.1rem;
}

/* ============================================
   Modal
   ============================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background-color: var(--background-color);
    padding: 30px;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    position: relative;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--placeholder-color);
}

.modal-close:hover {
    color: var(--text-color);
}

.modal-content h3 {
    margin-top: 0;
    color: var(--status-error);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .playground-container {
        flex-direction: column;
        height: auto;
    }
    
    .editor-panel {
        width: 100%;
        height: 400px;
        border-right: none;
        border-bottom: 2px solid var(--panel-border);
    }
    
    .resizer {
        display: none;
    }
    
    .output-panel {
        width: 100%;
        height: 500px;
    }
    
    .toolbar-content {
        flex-direction: column;
        align-items: stretch;
    }
    
    .toolbar-left,
    .toolbar-right {
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 768px) {
    .tab-btn {
        font-size: 0.8rem;
        padding: 10px;
    }
    
    .tab-icon {
        font-size: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .tree-legend {
        flex-wrap: wrap;
    }
}

/* ============================================
   Accessibility
   ============================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

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

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .playground-toolbar,
    .panel-header,
    .panel-footer,
    .tab-nav,
    footer {
        display: none;
    }
    
    .playground-container {
        flex-direction: column;
        height: auto;
    }
    
    .editor-panel,
    .output-panel {
        width: 100%;
    }
}