/* SQL Query Playground CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #181a20;
    --bg-secondary: #23263a;
    --bg-tertiary: #353866;
    --accent-color: #ffb347;
    --info-color: #60BADB;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --text-primary: #f5f6fa;
    --text-secondary: #b2becd;
    --border-color: rgba(255, 179, 71, 0.2);
    --shadow-light: rgba(255, 179, 71, 0.1);
    --shadow-dark: rgba(0, 0, 0, 0.3);
    --gradient-primary: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    --gradient-accent: linear-gradient(45deg, var(--accent-color), #ffa726);
    --gradient-info: linear-gradient(45deg, var(--info-color), #4ecdc4);
    --editor-bg: #2d3748;
    --editor-border: #4a5568;
    --sidebar-width: 320px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    height: 100vh;
}

.playground-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    max-width: 100vw;
    overflow-x: hidden;
}

/* Header Styles */
.playground-header {
    background: var(--gradient-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 25px;
    box-shadow: 0 4px 15px var(--shadow-dark);
    flex-shrink: 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 100%;
}

.header-left h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 5px;
}

h1 .emoji {
  -webkit-background-clip: initial;
  -webkit-text-fill-color: initial;
  background-clip: initial;
  color: inherit;
}

.header-left p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 25px;
}

.database-selector {
    display: flex;
    align-items: center;
    gap: 10px;
}

.database-selector label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
}

#databaseSelect {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    min-width: 180px;
}

#databaseSelect:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-color);
}

#databaseSelect:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 179, 71, 0.3);
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    background: rgba(46, 204, 113, 0.15);
    border-radius: 20px;
    border: 1px solid var(--success-color);
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-indicator.connected {
    background: var(--success-color);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-text {
    color: var(--success-color);
    font-size: 0.85rem;
    font-weight: 600;
}

/* Main Layout */
.playground-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
}

/* Sidebar */
.schema-sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.schema-sidebar.collapsed {
    width: 0;
    overflow: hidden;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.sidebar-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-color);
}

.toggle-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 5px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.toggle-btn:hover {
    background: var(--bg-secondary);
    color: var(--accent-color);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.database-info {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.database-info h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.database-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.tables-list h4,
.sample-queries h4 {
    color: var(--info-color);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.table-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.table-item:hover {
    border-color: var(--accent-color);
    box-shadow: 0 3px 10px var(--shadow-light);
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--bg-tertiary);
    cursor: pointer;
}

.table-name {
    font-weight: 700;
    color: var(--accent-color);
    font-size: 0.95rem;
}

.table-toggle {
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.table-item.expanded .table-toggle {
    transform: rotate(90deg);
}

.table-columns {
    display: none;
    padding: 15px;
    background: var(--bg-primary);
}

.table-item.expanded .table-columns {
    display: block;
}

.column-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 179, 71, 0.1);
    font-size: 0.85rem;
}

.column-name {
    color: var(--text-primary);
    font-weight: 600;
}

.column-type {
    color: var(--text-secondary);
    font-size: 0.8rem;
    padding: 2px 8px;
    background: var(--bg-secondary);
    border-radius: 12px;
}

.sample-queries {
    margin-top: 25px;
}

.query-sample {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.query-sample:hover {
    border-color: var(--info-color);
    box-shadow: 0 3px 10px rgba(96, 186, 219, 0.2);
}

.query-sample-title {
    padding: 10px 15px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--info-color);
    background: var(--bg-tertiary);
}

.query-sample-code {
    padding: 15px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
    background: var(--bg-primary);
}

/* Main Content */
.playground-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

/* Editor Section */
.editor-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    border-bottom: 1px solid var(--border-color);
    min-height: 45%;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.editor-tabs {
    display: flex;
    gap: 5px;
}

.tab-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: 8px 8px 0 0;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 600;
}

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

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

.editor-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.control-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
    font-weight: 600;
}

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

.execute-btn {
    background: var(--gradient-accent);
    color: var(--bg-primary);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(255, 179, 71, 0.3);
}

.execute-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 179, 71, 0.5);
}

/* Tab Contents */
.tab-content {
    display: none;
    flex: 1;
    overflow: hidden;
}

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

.editor-container {
    flex: 1;
    position: relative;
}

#sqlEditor {
    width: 100%;
    height: 100%;
    background: var(--editor-bg);
    color: var(--text-primary);
    border: none;
    padding: 20px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    line-height: 1.6;
    resize: none;
    outline: none;
}

#sqlEditor:focus {
    background: #2d3748;
}

/* CodeMirror Overrides */
.CodeMirror {
    height: 100% !important;
    background: var(--editor-bg) !important;
    color: var(--text-primary) !important;
    font-family: 'Consolas', 'Monaco', monospace !important;
    font-size: 14px !important;
    line-height: 1.6 !important;
}

.CodeMirror-cursor {
    border-left: 2px solid var(--accent-color) !important;
}

.CodeMirror-selected {
    background: rgba(255, 179, 71, 0.2) !important;
}

.CodeMirror-gutters {
    background: var(--bg-tertiary) !important;
    border-right: 1px solid var(--border-color) !important;
}

.CodeMirror-linenumber {
    color: var(--text-secondary) !important;
}

/* Query Builder */
.query-builder {
    padding: 25px;
    background: var(--bg-primary);
    overflow-y: auto;
    flex: 1;
}

.builder-section {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.builder-section label {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.builder-input {
    display: flex;
    gap: 15px;
    align-items: center;
}

.builder-section select,
.builder-section input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 15px;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    flex: 1;
}

.builder-section select:focus,
.builder-section input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 179, 71, 0.3);
}

.builder-section select[multiple] {
    height: 120px;
}

.build-btn {
    background: var(--gradient-info);
    color: var(--bg-primary);
    border: none;
    padding: 15px 25px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    margin-top: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(96, 186, 219, 0.3);
}

.build-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(96, 186, 219, 0.5);
}

/* Query History */
.query-history {
    padding: 25px;
    background: var(--bg-primary);
    overflow-y: auto;
    flex: 1;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.history-header h4 {
    color: var(--accent-color);
    font-size: 1.2rem;
    font-weight: 700;
}

.clear-history-btn {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.clear-history-btn:hover {
    background: #c0392b;
    transform: translateY(-1px);
}

.history-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 15px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.history-item:hover {
    border-color: var(--accent-color);
    box-shadow: 0 3px 10px var(--shadow-light);
}

.history-query {
    font-family: 'Consolas', 'Monaco', monospace;
    color: var(--text-primary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 10px;
    background: var(--bg-primary);
    padding: 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.history-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Results Section */
.results-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 45%;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.results-tabs {
    display: flex;
    gap: 5px;
}

.result-tab {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: 8px 8px 0 0;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 600;
}

.result-tab:hover {
    background: var(--bg-tertiary);
    color: var(--info-color);
}

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

.results-info {
    display: flex;
    gap: 20px;
    align-items: center;
    font-size: 0.9rem;
}

.results-info span {
    color: var(--text-secondary);
    font-weight: 600;
}

.export-btn {
    background: var(--gradient-info);
    color: var(--bg-primary);
    border: none;
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.export-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(96, 186, 219, 0.4);
}

.results-content {
    flex: 1;
    overflow: hidden;
}

.result-view {
    display: none;
    height: 100%;
    overflow: auto;
}

.result-view.active {
    display: block;
}

.table-container {
    height: 100%;
    overflow: auto;
    padding: 20px;
}

.table-info {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    font-style: italic;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-primary);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-dark);
}

.results-table th {
    background: var(--bg-tertiary);
    color: var(--accent-color);
    padding: 15px;
    text-align: left;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.results-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.results-table tr:hover {
    background: rgba(255, 179, 71, 0.05);
}

/* Chart View */
.chart-controls {
    display: flex;
    gap: 15px;
    align-items: center;
    padding: 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.chart-controls label {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
}

.chart-controls select {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
}

.chart-controls select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.chart-btn {
    background: var(--gradient-accent);
    color: var(--bg-primary);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.chart-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(255, 179, 71, 0.4);
}

.chart-container {
    flex: 1;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#resultChart {
    max-width: 100%;
    max-height: 400px;
}

/* JSON View */
.json-container {
    height: 100%;
    padding: 20px;
    overflow: auto;
}

#jsonOutput {
    background: var(--editor-bg);
    color: var(--text-primary);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-wrap;
    overflow-x: auto;
}

/* Explain Plan */
.explain-container {
    padding: 20px;
    height: 100%;
    overflow: auto;
}

.explain-container h4 {
    color: var(--accent-color);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
}

#explainOutput {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-primary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    max-width: 800px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: 0 20px 40px var(--shadow-dark);
    animation: modalSlideIn 0.3s ease;
}

.return-section {
    margin-top: 5px;
    text-align: center;
    animation: fadeInUp 0.8s ease 0.3s both;
}
.btn-return {
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 2px solid var(--bg-tertiary);
    padding: 12px 25px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Montserrat', Arial, sans-serif;
}
.btn-return:hover {
    background: var(--bg-tertiary);
    color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(53, 56, 102, 0.4);
}

/* Ensure scrollbars work properly */
::-webkit-scrollbar {
    width: 10px;
}
    
::-webkit-scrollbar-track {
    background: var(--primary-bg);
}
    
::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}
    
::-webkit-scrollbar-thumb:hover {
    background: #ff8c42;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.modal-header h3 {
    color: var(--accent-color);
    font-size: 1.4rem;
    font-weight: 700;
}

.close-modal {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.close-modal:hover {
    background: var(--bg-secondary);
    color: var(--accent-color);
}

.modal-body {
    max-height: 60vh;
    overflow-y: auto;
    padding: 25px;
}

/* Tutorial */
.tutorial-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.tutorial-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 600;
}

.tutorial-btn:hover {
    background: var(--bg-tertiary);
    color: var(--accent-color);
}

.tutorial-btn.active {
    background: var(--accent-color);
    color: var(--bg-primary);
}

.lesson {
    display: none;
}

.lesson.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.lesson h4 {
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.lesson p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.lesson ul {
    margin-bottom: 25px;
    padding-left: 20px;
}

.lesson li {
    color: var(--text-secondary);
    margin-bottom: 10px;
    line-height: 1.6;
}

.lesson li strong {
    color: var(--accent-color);
}

.example-query {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
}

.example-query code {
    display: block;
    background: var(--editor-bg);
    color: var(--info-color);
    padding: 15px;
    border-radius: 8px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 15px;
    overflow-x: auto;
}

.try-query {
    background: var(--gradient-info);
    color: var(--bg-primary);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.try-query:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(96, 186, 219, 0.4);
}

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 100;
}

.fab-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-accent);
    color: var(--bg-primary);
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(255, 179, 71, 0.4);
    transition: all 0.3s ease;
}

.fab-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(255, 179, 71, 0.6);
}

.fab-menu {
    position: absolute;
    bottom: 70px;
    right: 0;
    display: none;
    flex-direction: column;
    gap: 10px;
}

.fab:hover .fab-menu {
    display: flex;
    animation: fabMenuSlideIn 0.3s ease;
}

@keyframes fabMenuSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fab-option {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 15px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px var(--shadow-dark);
}

.fab-option:hover {
    background: var(--accent-color);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(24, 26, 32, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.loading-overlay.active {
    display: flex;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

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

.loading-overlay p {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 1200px) {
    :root {
        --sidebar-width: 280px;
    }
}

@media (max-width: 968px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .header-right {
        flex-direction: column;
        gap: 15px;
    }
    
    .playground-layout {
        flex-direction: column;
        overflow: auto;
    }
    
    .schema-sidebar {
        position: relative;
        width: 100%;
        max-height: 300px;
        overflow-y: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .schema-sidebar.collapsed {
        max-height: 0;
        overflow: hidden;
    }
    
    .playground-main {
        flex: 1;
        min-height: 400px;
    }
    
    .editor-header,
    .results-header {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .editor-tabs,
    .results-tabs {
        overflow-x: auto;
    }
    
    .chart-controls {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 768px) {
    .playground-container {
        height: auto;
        min-height: 100vh;
    }
    
    .playground-layout {
        flex-direction: column;
        height: auto;
        overflow: visible;
    }
    
    .playground-header {
        padding: 10px 15px;
    }
    
    .header-left h1 {
        font-size: 1.5rem;
    }
    
    .schema-sidebar {
        position: relative;
        width: 100%;
        max-height: 250px;
        overflow-y: auto;
        border-right: none;
        border-bottom: 2px solid var(--border-color);
    }
    
    .schema-sidebar.collapsed {
        max-height: 0;
        overflow: hidden;
        border-bottom: none;
    }
    
    .playground-main {
        min-height: 500px;
        overflow: visible;
    }
    
    .sidebar-content {
        padding: 15px;
    }
    
    .editor-section,
    .results-section {
        min-height: 250px;
    }
    
    .editor-header,
    .results-header {
        padding: 15px;
        flex-direction: column;
        gap: 10px;
    }
    
    .tab-btn,
    .result-tab {
        padding: 8px 15px;
        font-size: 0.8rem;
    }
    
    .modal-content {
        width: 95%;
    }
    
    .tutorial-nav {
        flex-wrap: wrap;
    }
    
    .fab {
        bottom: 20px;
        right: 20px;
    }
    
    .fab-btn {
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .playground-container {
        padding: 0;
    }
    
    .playground-header {
        padding: 8px 12px;
    }
    
    .header-left h1 {
        font-size: 1.3rem;
    }
    
    .header-left p {
        font-size: 0.85rem;
    }
    
    .schema-sidebar {
        max-height: 200px;
    }
    
    .sidebar-content {
        padding: 10px;
    }
    
    .editor-section,
    .results-section {
        min-height: 200px;
    }
    
    .editor-header,
    .results-header {
        padding: 10px;
    }
    
    .tab-btn,
    .result-tab {
        padding: 6px 10px;
        font-size: 0.75rem;
    }
    
    .control-btn,
    .execute-btn {
        padding: 6px 10px;
        font-size: 0.8rem;
    }
}

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

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}