/* CSS Variables - Windows 2000 Light Theme (Default) */
:root {
    --win-gray: #c0c0c0;
    --win-gray-light: #d4d0c8;
    --win-gray-dark: #808080;
    --win-gray-darker: #606060;
    --win-blue: #316ac5;
    --win-blue-dark: #0a246a;
    --win-blue-light: #4a7ac5;
    --win-blue-lighter: #6a9ad5;
    --bg-white: #fff;
    --bg-light: #f0f0f0;
    --bg-lighter: #e0e0e0;
    --text-primary: #000;
    --text-secondary: #333;
    --font-main: 'IBM Plex Mono', 'Courier New', Consolas, monospace;
    --font-mono: 'IBM Plex Mono', 'Courier New', Consolas, monospace;
}

/* CSS Variables - Experimental Theme */
:root[data-theme="experimental"] {
    --win-gray: #2a2a2a;
    --win-gray-light: #3a3a3a;
    --win-gray-dark: #1a1a1a;
    --win-gray-darker: #0f0f0f;
    --win-blue: #4a9eff;
    --win-blue-dark: #2a6acc;
    --win-blue-light: #6ab3ff;
    --win-blue-lighter: #7fbfff;
    --bg-white: #1e1e1e;
    --bg-light: #2d2d2d;
    --bg-lighter: #3a3a3a;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
}

/* Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-main); height: 100vh; overflow: hidden; background: var(--win-gray); display: flex; flex-direction: column; }

/* Header */
.header { background: var(--win-gray); border-bottom: 2px solid var(--win-gray-dark); padding: 6px 12px; display: flex; align-items: center; justify-content: space-between; height: 36px; flex-shrink: 0; }
.header-left { display: flex; align-items: center; gap: 10px; }
.header-icon { width: 24px; height: 24px; display: block; flex-shrink: 0; }
.header-title { font-size: 14px; font-weight: bold; }
.version-badge { font-size: 10px; padding: 2px 6px; background: var(--win-gray-dark); color: var(--bg-white); border-radius: 3px; font-weight: 500; }
:root[data-theme="experimental"] .version-badge { background: var(--win-gray-darker); color: var(--text-secondary); }
.header-links { display: flex; gap: 16px; }
.header-link { font-size: 12px; text-decoration: underline; cursor: pointer; color: var(--text-primary); }
.header-link:hover { background: var(--win-blue); color: var(--bg-white); }

/* Layout */
.app-container { display: flex; height: calc(100vh - 36px); width: 100vw; }
.toggle-strip { display: flex; flex-direction: column; background: var(--win-gray); width: 32px; border-right: 2px solid var(--win-gray-dark); }
.main-panels { display: flex; flex: 1; min-width: 0; }
.panel { display: flex; flex-direction: column; border-right: 2px solid var(--win-gray-dark); background: var(--win-gray); min-width: 200px; }
.panel:last-child { border-right: none; }
.snippet-panel { width: 25%; flex: 0 1 auto; }
.editor-panel { width: 50%; flex: 0 1 auto; }
.preview-panel { width: 25%; flex: 0 1 auto; }

/* Resize Handle */
.resize-handle { width: 4px; background: var(--win-gray-dark); cursor: col-resize; flex-shrink: 0; position: relative; border-left: 1px solid #a0a0a0; border-right: 1px solid var(--win-gray-darker); }
:root[data-theme="experimental"] .resize-handle { border-left-color: #505050; }
.resize-handle:hover { background: var(--win-gray-darker); }
.resize-handle.dragging { background: var(--win-blue); }

/* Panel Header */
.panel-header { padding: 6px 12px; background: var(--win-gray); border-bottom: 1px solid var(--win-gray-dark); font-size: 12px; display: flex; justify-content: space-between; align-items: center; height: 28px; color: var(--text-primary); }

/* Controls */
.editor-controls { display: flex; align-items: center; gap: 6px; height: 20px; }
.preview-controls { display: flex; align-items: center; gap: 6px; height: 20px; }
.view-label { font-size: 10px; margin-right: 4px; }
.view-toggle-group,
.dataset-toggle-group { display: flex; }

/* Base Button Styles */
.btn {
    background: var(--win-gray);
    border: 2px outset var(--win-gray);
    color: var(--text-primary);
    cursor: pointer;
    font-family: var(--font-main);
}
.btn:hover { background: var(--win-gray-light); }
.btn:active { border-style: inset; }
.btn:disabled { opacity: 0.5; cursor: default; }

/* Toggle Buttons (small inline) */
.btn-toggle { border: 1px solid var(--win-gray-dark); padding: 2px 8px; font-size: 10px; height: 20px; color: var(--text-primary); }
.btn-toggle:first-child { border-right: 1px solid var(--win-gray-dark); }
.btn-toggle:last-child { border-left: none; }
.btn-toggle:hover:not(.active) { background: var(--win-gray-light); }
.btn-toggle:active { background: var(--win-blue); color: var(--bg-white); }
.btn-toggle.active {
    background: var(--win-blue);
    color: var(--bg-white);
    border-top: 1px solid var(--win-blue-dark);
    border-left: 1px solid var(--win-blue-dark);
    border-bottom: 1px solid var(--win-blue-light);
    border-right: 1px solid var(--win-blue-light);
}
.btn-toggle.active:first-child { border-right: 1px solid var(--win-blue-light); }
.btn-toggle.active:last-child { border-left: 1px solid var(--win-blue-dark); }
.btn-toggle:not(:first-child) { border-left: none; }
.btn-toggle.active:not(:first-child) { border-left: 1px solid var(--win-blue-dark); }

/* Action Buttons */
.btn-action { padding: 2px 8px; font-size: 10px; display: none; height: 20px; }
.btn-action.visible { display: block; }
.btn-action:hover { filter: brightness(1.1); }
.btn-action.publish { background: #90ee90; }
.btn-action.publish:hover { background: #a0ffa0; }
:root[data-theme="experimental"] .btn-action.publish { background: #3a6a3a; color: #88ff88; }
:root[data-theme="experimental"] .btn-action.publish:hover { background: #4a8a4a; }
.btn-action.revert { background: #ffb080; }
.btn-action.revert:hover { background: #ffc090; }
:root[data-theme="experimental"] .btn-action.revert { background: #6a4a2a; color: #ffcc99; }
:root[data-theme="experimental"] .btn-action.revert:hover { background: #8a6a4a; }

/* Icon Buttons */
.btn-icon { padding: 0; width: 20px; height: 20px; font-size: 14px; display: flex; align-items: center; justify-content: center; border: 1px outset var(--win-gray); }
.btn-icon:active { border: 1px inset var(--win-gray); }
.btn-icon.large { width: 24px; height: 24px; font-size: 12px; }
.btn-icon.xlarge { width: 32px; height: 32px; font-size: 16px; padding: 6px; }
.btn-icon.xlarge.active { background: var(--win-gray-light); border: 2px inset var(--win-gray); }

/* Standard Buttons */
.btn-standard { padding: 4px 8px; font-size: 11px; }
.btn-standard.flex { flex: 1; }
.btn-standard.primary { background: #90ee90; }
.btn-standard.primary:hover { background: #a0ffa0; }
:root[data-theme="experimental"] .btn-standard.primary { background: #3a6a3a; color: #88ff88; }
:root[data-theme="experimental"] .btn-standard.primary:hover { background: #4a8a4a; }
.btn-standard.danger { background: #f88; border: 2px outset #f88; }
.btn-standard.danger:hover { background: #f99; }
:root[data-theme="experimental"] .btn-standard.danger { background: #6a2a2a; color: #ff9999; border-color: #6a2a2a; }
:root[data-theme="experimental"] .btn-standard.danger:hover { background: #8a4a4a; }
.btn-standard.danger:active { border: 2px inset #f88; }

/* Modal Buttons */
.btn-modal { padding: 6px 12px; font-size: 11px; }
.btn-modal.primary { background: #90ee90; }
.btn-modal.primary:hover { background: #a0ffa0; }
:root[data-theme="experimental"] .btn-modal.primary { background: #3a6a3a; color: #88ff88; }
:root[data-theme="experimental"] .btn-modal.primary:hover { background: #4a8a4a; }
.btn-modal.danger { background: #f88; border: 2px outset #f88; }
.btn-modal.danger:hover { background: #f99; }
:root[data-theme="experimental"] .btn-modal.danger { background: #6a2a2a; color: #ff9999; border-color: #6a2a2a; }
:root[data-theme="experimental"] .btn-modal.danger:hover { background: #8a4a4a; }
.btn-modal.danger:active { border: 2px inset #f88; }

/* Sort Controls */
.sort-controls { padding: 6px 12px; background: var(--win-gray-light); border-bottom: 2px solid var(--win-gray-dark); display: flex; align-items: center; gap: 6px; font-size: 11px; }
.sort-label { font-size: 10px; margin-right: 4px; }
.sort-btn { border: 1px outset var(--win-gray); padding: 2px 6px; font-size: 10px; display: flex; align-items: center; gap: 3px; }
.sort-btn:hover { background: var(--win-gray-light); }
.sort-btn:active { border: 1px inset var(--win-gray); }
.sort-text { flex: 1; }
.sort-arrow { font-size: 9px; opacity: 0.7; }
.sort-btn.active {
    background: var(--win-blue);
    color: var(--bg-white);
    border: 1px inset var(--win-blue);
    border-top: 1px solid var(--win-blue-dark);
    border-left: 1px solid var(--win-blue-dark);
    border-bottom: 1px solid var(--win-blue-light);
    border-right: 1px solid var(--win-blue-light);
}

/* Search Controls */
.search-controls { padding: 6px 12px; background: var(--win-gray-light); border-bottom: 2px solid var(--win-gray-dark); display: flex; align-items: center; gap: 4px; }
#snippet-search { flex: 1; font-family: var(--font-main); font-size: 11px; border: 2px inset var(--win-gray); padding: 3px 6px; height: 20px; background: var(--bg-white); color: var(--text-primary); }

/* Panel Content */
.panel-content { flex: 1; padding: 8px; overflow: hidden; background: var(--bg-white); border: 1px inset var(--win-gray); display: flex; flex-direction: column; color: var(--text-primary); }

/* Preview Overlay - dims visualization during editing/resizing */
.preview-overlay { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.25); pointer-events: none; transition: opacity 0.2s ease; z-index: 10; }
.preview-overlay.active { opacity: 1; }
:root[data-theme="experimental"] .preview-overlay { background: rgba(0, 0, 0, 0.4); }

/* Placeholder */
.placeholder { color: var(--win-gray-dark); font-style: italic; text-align: center; margin-top: 40px; font-size: 12px; }
:root[data-theme="experimental"] .placeholder { color: var(--win-gray-light); }

/* Snippet List */
.snippet-list { list-style: none; flex: 1; overflow-y: auto; overflow-x: hidden; margin-bottom: 8px; }
.snippet-item { padding: 4px 8px; border: 1px solid var(--win-gray-dark); margin-bottom: 2px; cursor: pointer; background: var(--bg-white); color: var(--text-primary); display: flex; justify-content: space-between; align-items: center; }
.snippet-info { flex: 1; }
.snippet-status { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; margin-left: 8px; }
.snippet-status.published { background: #0f0; box-shadow: 0 0 2px #0c0; }
:root[data-theme="experimental"] .snippet-status.published { background: #66ff66; box-shadow: 0 0 2px #44dd44; }
.snippet-status.draft { background: #ff0; box-shadow: 0 0 2px #cc0; }
:root[data-theme="experimental"] .snippet-status.draft { background: #ffff66; box-shadow: 0 0 2px #dddd44; }
.snippet-item:hover { background: var(--win-blue-lighter); color: var(--bg-white); }
.snippet-item.selected { background: var(--win-blue); color: var(--bg-white); }
.snippet-name { font-size: 12px; }
.snippet-date { font-size: 11px; color: inherit; margin-top: 1px; }
.snippet-size { font-size: 10px; color: var(--win-gray-dark); margin-left: auto; margin-right: 8px; flex-shrink: 0; }
:root[data-theme="experimental"] .snippet-size { color: var(--win-gray-light); }
.snippet-dataset-icon { margin-left: 4px; font-size: 10px; opacity: 0.7; }
.snippet-item.selected .snippet-dataset-icon,
.snippet-item:hover .snippet-dataset-icon { opacity: 1; }

/* Placeholders */
.editor-placeholder,
.preview-placeholder { background: var(--bg-white); border: 2px inset var(--win-gray); height: 300px; display: flex; align-items: center; justify-content: center; flex-direction: column; margin: 8px; }

/* Snippet Meta */
.snippet-meta { margin-top: 12px; padding: 8px 8px 16px; border-top: 1px solid var(--win-gray-dark); background: var(--bg-light); border: 1px inset var(--win-gray); margin-left: -8px; margin-right: -8px; margin-bottom: 0; flex-shrink: 0; color: var(--text-primary); }
.meta-header { font-size: 11px; font-weight: bold; margin-bottom: 4px; color: var(--text-primary); }

/* Base Input Styles */
.input {
    width: 100%;
    font-family: var(--font-main);
    font-size: 11px;
    border: 2px inset var(--win-gray);
    padding: 4px;
    background: var(--bg-white);
    color: var(--text-primary);
}
.input.textarea { resize: vertical; }
.input.small { height: 20px; }
.input.medium { min-height: 40px; }

/* Meta Info */
.meta-info { margin: 8px 0; padding: 6px; background: var(--bg-lighter); border: 1px inset var(--win-gray); font-size: 10px; color: var(--text-primary); }
.meta-info-item { display: flex; justify-content: space-between; margin-bottom: 2px; }
.meta-info-item:last-child { margin-bottom: 0; }
.meta-info-label { font-weight: bold; }
.meta-info-value { color: var(--win-gray-darker); }
:root[data-theme="experimental"] .meta-info-value { color: var(--win-gray-light); }
.dataset-link { color: var(--win-blue); text-decoration: underline; cursor: pointer; }
.dataset-link:hover { color: var(--win-blue-dark); background: #e0e8f0; }
:root[data-theme="experimental"] .dataset-link:hover { background: #2a3a5a; }
.snippet-link { color: var(--win-blue); text-decoration: underline; cursor: pointer; font-size: 10px; }
.snippet-link:hover { color: var(--win-blue-dark); background: #e0e8f0; }
:root[data-theme="experimental"] .snippet-link:hover { background: #2a3a5a; }

/* Meta Actions */
.meta-actions { display: flex; gap: 6px; margin-top: 8px; }

/* Ghost Card */
.ghost-card { border: 2px dashed var(--win-gray-dark) !important; background: var(--bg-light) !important; font-style: italic; opacity: 0.8; }
.ghost-card:hover { background: var(--bg-lighter) !important; border-color: var(--win-gray-darker) !important; opacity: 1; }
.ghost-card .snippet-name { color: var(--win-gray-darker); }
:root[data-theme="experimental"] .ghost-card .snippet-name { color: var(--win-gray-light); }
.ghost-card .snippet-date { color: var(--win-gray-dark); }
:root[data-theme="experimental"] .ghost-card .snippet-date { color: var(--win-gray-light); }

/* Storage Monitor */
.storage-monitor { padding: 8px; background: var(--bg-light); border-top: 1px solid var(--win-gray-dark); margin: 0 -8px -8px; flex-shrink: 0; }
.storage-info { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; font-size: 10px; }
.storage-label { font-weight: bold; color: var(--text-primary); }
.storage-text { color: #0066cc; }
:root[data-theme="experimental"] .storage-text { color: #4a9eff; }
.storage-bar { width: 100%; height: 12px; background: var(--bg-white); border: 1px inset var(--win-gray); position: relative; }
.storage-fill { height: 100%; background: #0a0; transition: width 0.3s ease, background-color 0.3s ease; }
:root[data-theme="experimental"] .storage-fill { background: #66ff66; }
.storage-fill.warning { background: #f80; }
:root[data-theme="experimental"] .storage-fill.warning { background: #ffaa44; }
.storage-fill.critical { background: #f00; }
:root[data-theme="experimental"] .storage-fill.critical { background: #ff6666; }

/* Modal */
.modal { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(0,0,0,0.5); display: flex; align-items: center; justify-content: center; z-index: 1000; }
.modal-content { background: var(--win-gray); border: 2px outset var(--win-gray); width: 95%; max-width: 1200px; height: 85vh; max-height: 90vh; display: flex; flex-direction: column; box-shadow: 4px 4px 8px rgba(0,0,0,0.3); }
.modal-header { background: #008; color: var(--bg-white); padding: 4px 8px; display: flex; justify-content: space-between; align-items: center; height: 24px; border-bottom: 2px solid var(--win-gray-dark); }
:root[data-theme="experimental"] .modal-header { background: #1a4a7a; }
.modal-title { font-size: 12px; font-weight: bold; }
.modal-body { flex: 1; overflow: auto; background: var(--bg-white); border: 2px inset var(--win-gray); margin: 8px; min-height: 0; color: var(--text-primary); }

/* Dataset Views */
.dataset-view { min-height: 100%; display: flex; flex-direction: column; }
.dataset-list-header { padding: 8px; background: var(--win-gray-light); border-bottom: 2px solid var(--win-gray-dark); }
.dataset-container { display: flex; flex: 1; overflow: hidden; }
.dataset-list { width: 300px; overflow-y: auto; border-right: 2px solid var(--win-gray-dark); background: var(--bg-white); color: var(--text-primary); }
.dataset-item { padding: 8px; border-bottom: 1px solid #d0d0d0; cursor: pointer; background: var(--bg-white); color: var(--text-primary); display: flex; justify-content: space-between; align-items: center; gap: 8px; }
:root[data-theme="experimental"] .dataset-item { border-bottom-color: var(--win-gray-dark); }
.dataset-item:hover { background: var(--win-blue-lighter); color: var(--bg-white); }
.dataset-item.selected { background: var(--win-blue); color: var(--bg-white); }
.dataset-info { flex: 1; min-width: 0; }
.dataset-name { font-size: 12px; font-weight: bold; margin-bottom: 2px; }
.dataset-meta { font-size: 10px; color: var(--win-gray-darker); }
:root[data-theme="experimental"] .dataset-meta { color: var(--win-gray-light); }
.dataset-item.selected .dataset-meta,
.dataset-item:hover .dataset-meta { color: inherit; opacity: 0.9; }
.dataset-usage-badge { background: var(--win-blue); color: var(--bg-white); padding: 2px 6px; font-size: 10px; font-weight: bold; border-radius: 3px; white-space: nowrap; flex-shrink: 0; }
.dataset-item.selected .dataset-usage-badge { background: var(--win-blue-dark); }
.dataset-item:hover .dataset-usage-badge { background: var(--win-blue-dark); }
.dataset-empty { padding: 32px; text-align: center; color: var(--win-gray-dark); font-style: italic; font-size: 12px; }
:root[data-theme="experimental"] .dataset-empty { color: var(--win-gray-light); }

/* Dataset Details */
.dataset-details { flex: 1; overflow-y: auto; background: var(--bg-white); color: var(--text-primary); }
.dataset-detail-section { padding: 16px; }
.dataset-detail-header { font-size: 11px; font-weight: bold; margin-bottom: 6px; margin-top: 12px; color: var(--text-primary); }
.dataset-detail-header:first-child { margin-top: 0; }
.dataset-detail-header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; margin-top: 12px; color: var(--text-primary); }

/* Dataset Overview Grid */
.dataset-overview-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); background: var(--bg-light); border: 1px inset var(--win-gray); padding: 8px; }
.overview-section { display: flex; flex-direction: column; padding: 0 8px; }
.overview-section:not(:last-child) { border-right: 1px solid var(--win-gray); }
.overview-section:first-child { padding-left: 0; }
.overview-section:last-child { padding-right: 0; }
.overview-section-title { font-size: 10px; font-weight: bold; margin-bottom: 8px; color: var(--text-secondary); }

/* Stats & Preview Boxes */
.stats-box { background: var(--bg-light); border: 1px inset var(--win-gray); padding: 8px; font-size: 10px; color: var(--text-primary); }
.overview-section .stats-box { background: none; border: none; padding: 0; }
.stat-item { display: flex; justify-content: space-between; margin-bottom: 4px; }
.stat-item:last-child { margin-bottom: 0; }
.stat-label { font-weight: bold; }

/* Columns List */
.columns-list { background: var(--bg-light); border: 1px inset var(--win-gray); padding: 8px; font-size: 10px; color: var(--text-primary); max-height: 200px; overflow-y: auto; }
.overview-section .columns-list { background: none; border: none; padding: 0; max-height: 150px; }
.column-item { display: flex; align-items: center; gap: 6px; margin-bottom: 4px; }
.column-item:last-child { margin-bottom: 0; }
.column-type-icon { flex-shrink: 0; font-size: 11px; }
.column-name { font-family: var(--font-mono); color: var(--text-primary); }
.column-type { color: var(--text-secondary); font-style: italic; margin-left: auto; }

.preview-box { background: var(--bg-light); border: 2px inset var(--win-gray); padding: 8px; font-family: var(--font-mono); font-size: 10px; overflow: auto; margin: 0; color: var(--text-primary); }
.preview-box.medium { max-height: 150px; }
.preview-box.large { max-height: 200px; }

/* Preview Toggle */
.preview-toggle-group { display: flex; }
.btn-toggle.small { padding: 2px 6px; font-size: 9px; height: 18px; }

/* Preview Table */
.preview-table-container { background: var(--bg-light); border: 2px inset var(--win-gray); overflow: auto; max-height: 200px; }
.preview-table { width: 100%; border-collapse: collapse; font-size: 10px; font-family: 'Consolas', 'Monaco', 'Courier New', monospace; }
.preview-table th { background: var(--win-gray-light); border: 1px solid var(--win-gray-dark); padding: 4px 6px; text-align: left; font-weight: bold; position: sticky; top: 0; color: var(--text-primary); }
.preview-table td { border: 1px solid #d0d0d0; padding: 3px 6px; background: var(--bg-white); color: var(--text-primary); }
:root[data-theme="experimental"] .preview-table td { border-color: var(--win-gray-dark); }
.preview-table tr:hover td { background: var(--bg-lighter); }
.preview-table-info { padding: 8px; font-size: 10px; color: var(--win-gray-darker); font-style: italic; text-align: center; }
:root[data-theme="experimental"] .preview-table-info { color: var(--win-gray-light); }

/* Type-specific cell formatting */
.type-icon { font-size: 11px; margin-right: 3px; }
.cell-number { font-style: italic; text-align: right; color: #0066cc; }
:root[data-theme="experimental"] .cell-number { color: #66b3ff; }
.cell-date { font-style: italic; color: #228b22; }
:root[data-theme="experimental"] .cell-date { color: #66dd66; }
.cell-boolean { font-weight: bold; text-align: center; color: #ff6600; }
:root[data-theme="experimental"] .cell-boolean { color: #ffaa44; }
.cell-text { color: var(--text-primary); }
.cell-null { color: var(--win-gray-dark); font-style: italic; text-align: center; }
:root[data-theme="experimental"] .cell-null { color: var(--win-gray-light); }

.dataset-actions { display: flex; gap: 8px; margin-top: 16px; }

/* Dataset Form */
.dataset-form { padding: 16px; height: 100%; overflow-y: auto; color: var(--text-primary); }
.dataset-form-header { font-size: 14px; font-weight: bold; margin-bottom: 16px; color: var(--text-primary); }
.dataset-form-group { margin-bottom: 12px; }
.dataset-form-label { display: block; font-size: 11px; font-weight: bold; margin-bottom: 4px; }
.dataset-toggle-row { display: flex; gap: 24px; padding: 8px; background: var(--bg-light); border: 1px inset var(--win-gray); flex-wrap: wrap; }
.dataset-toggle-section { display: flex; align-items: center; gap: 8px; }
.dataset-toggle-label { font-size: 10px; color: var(--text-primary); }
.dataset-format-hint { font-size: 10px; color: var(--win-gray-darker); font-style: italic; margin-bottom: 4px; padding: 4px; background: #fffacd; border: 1px solid #e0e0a0; }
:root[data-theme="experimental"] .dataset-format-hint { background: #4a4a2a; color: var(--text-secondary); border-color: #666644; }

/* Detection Confirmation */
.dataset-detection-confirm { margin: 12px 0; padding: 12px; background: #e8f4f8; border: 2px solid #4a90c5; border-radius: 4px; }
:root[data-theme="experimental"] .dataset-detection-confirm { background: #2a3a4a; border-color: #4a7acc; }
.detection-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.detection-title { font-size: 11px; font-weight: bold; color: var(--text-primary); }
.detection-badges { display: flex; gap: 6px; align-items: center; }
.detection-badge { background: var(--win-blue); color: var(--bg-white); padding: 2px 8px; font-size: 10px; font-weight: bold; border: 1px solid var(--win-blue-dark); border-radius: 2px; }
.detected-confidence { font-size: 9px; padding: 2px 6px; border-radius: 2px; }

/* Schema Warning */
.dataset-schema-warning { margin: 12px 0; padding: 12px; background: #fff8dc; border: 2px solid #ffa500; border-radius: 4px; font-size: 11px; line-height: 1.6; color: #000; }
:root[data-theme="experimental"] .dataset-schema-warning { background: #3a3020; border-color: #cc8800; color: #ffd966; }
.dataset-schema-warning strong { font-weight: 600; }
.dataset-schema-warning em { font-style: italic; opacity: 0.9; }
.detected-confidence.high { background: #90ee90; border: 1px solid #60c060; }
:root[data-theme="experimental"] .detected-confidence.high { background: #3a6a3a; color: #88ff88; border-color: #66dd66; }
.detected-confidence.medium { background: #ffff90; border: 1px solid #d0d060; }
:root[data-theme="experimental"] .detected-confidence.medium { background: #6a6a2a; color: #ffff99; border-color: #dddd66; }
.detected-confidence.low { background: #ffb080; border: 1px solid #d08050; }
:root[data-theme="experimental"] .detected-confidence.low { background: #6a4a2a; color: #ffcc99; border-color: #dd8866; }
.detection-preview-label { font-size: 10px; font-weight: bold; margin-bottom: 4px; color: var(--text-primary); }
.dataset-form-error { color: #f00; font-size: 11px; margin-bottom: 12px; min-height: 16px; }
:root[data-theme="experimental"] .dataset-form-error { color: #ff6666; }
.dataset-form-actions { display: flex; gap: 8px; margin-top: 16px; }

/* Help Modal */
.help-content { padding: 20px; }
.help-section { margin-bottom: 24px; }
.help-section:last-child { margin-bottom: 0; }
.help-heading { font-size: 14px; font-weight: bold; margin: 0 0 12px 0; color: var(--win-blue-dark); border-bottom: 1px solid var(--win-gray-dark); padding-bottom: 4px; }
:root[data-theme="experimental"] .help-heading { color: var(--win-blue); }
.help-text { font-size: 12px; line-height: 1.5; margin: 0 0 8px 0; color: var(--text-secondary); }
.help-text:last-child { margin-bottom: 0; }
.help-warning { background: #fff3cd; border: 2px solid #ffc107; padding: 12px; margin-bottom: 16px; font-size: 12px; line-height: 1.5; color: #856404; border-radius: 2px; }
:root[data-theme="experimental"] .help-warning { background: #4a3a0a; border-color: #996600; color: #ffaa66; }
.help-warning strong { color: #d39e00; }
:root[data-theme="experimental"] .help-warning strong { color: #ffcc88; }
.help-list { margin: 0; padding-left: 20px; font-size: 12px; line-height: 1.6; }
.help-list li { margin-bottom: 8px; color: var(--text-secondary); }
.help-list li:last-child { margin-bottom: 0; }
.help-workflow { display: flex; flex-direction: column; gap: 12px; }
.help-step { background: var(--bg-light); border: 1px solid var(--win-gray-dark); padding: 10px 12px; border-radius: 2px; }
.help-step strong { display: block; font-size: 12px; margin-bottom: 4px; color: var(--win-blue-dark); }
:root[data-theme="experimental"] .help-step strong { color: var(--win-blue); }
.help-step p { font-size: 11px; line-height: 1.5; margin: 0; color: var(--text-secondary); }
.help-step code { font-family: var(--font-mono); font-size: 10px; background: var(--bg-white); border: 1px solid var(--win-gray-dark); padding: 2px 4px; border-radius: 2px; }
.help-shortcuts-table { width: 100%; border-collapse: collapse; }
.help-shortcuts-table tbody tr { border-bottom: 1px solid var(--bg-lighter); }
.help-shortcuts-table tbody tr:last-child { border-bottom: none; }
.help-shortcuts-table td { padding: 12px 8px; font-size: 12px; }
.shortcut-key { font-family: var(--font-mono); font-weight: bold; background: var(--bg-light); border: 1px solid var(--win-gray-dark); padding: 6px 10px; border-radius: 2px; white-space: nowrap; width: 180px; }
.shortcut-desc { color: var(--win-gray-darker); }
:root[data-theme="experimental"] .shortcut-desc { color: var(--win-gray-light); }

/* Two-column layout for donate sections */
.donate-two-column { display: flex; gap: 20px; margin-bottom: 24px; }
.donate-two-column .help-section { flex: 1; margin-bottom: 0; }

/* Settings Modal */
.settings-content { padding: 20px; }
.settings-section { margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--win-gray-dark); }
.settings-section:last-of-type { border-bottom: none; padding-bottom: 0; }
.settings-heading { font-size: 14px; font-weight: bold; margin: 0 0 16px 0; color: var(--win-blue-dark); }
:root[data-theme="experimental"] .settings-heading { color: var(--win-blue); }

.settings-item { margin-bottom: 16px; }
.settings-item:last-child { margin-bottom: 0; }

.settings-label { display: block; font-size: 12px; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; }
.settings-label input[type="checkbox"] { margin-right: 6px; vertical-align: middle; }

.settings-control { display: flex; align-items: center; gap: 12px; }

.settings-slider { flex: 1; height: 4px; background: var(--win-gray-dark); outline: none; border-radius: 2px; -webkit-appearance: none; appearance: none; }
.settings-slider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 16px; height: 16px; background: var(--win-blue); border: 2px solid var(--win-blue-dark); border-radius: 50%; cursor: pointer; }
.settings-slider::-moz-range-thumb { width: 16px; height: 16px; background: var(--win-blue); border: 2px solid var(--win-blue-dark); border-radius: 50%; cursor: pointer; }

.settings-value { font-size: 12px; font-family: var(--font-mono); color: var(--win-gray-darker); min-width: 60px; text-align: right; }
:root[data-theme="experimental"] .settings-value { color: var(--win-gray-light); }

.settings-select { flex: 1; padding: 4px 8px; font-size: 12px; font-family: var(--font-mono); background: var(--bg-white); border: 2px inset var(--win-gray); color: var(--text-primary); }
.settings-select:focus { outline: 1px dotted var(--text-primary); }

.settings-input { width: 100%; padding: 4px 8px; font-size: 12px; font-family: var(--font-mono); background: var(--bg-white); border: 2px inset var(--win-gray); color: var(--text-primary); }
.settings-input:focus { outline: 1px dotted var(--text-primary); }

.settings-checkbox { width: 14px; height: 14px; cursor: pointer; }

.settings-hint { font-size: 11px; color: var(--win-gray-darker); margin-top: 4px; line-height: 1.4; }
:root[data-theme="experimental"] .settings-hint { color: var(--text-secondary); }

.settings-actions { display: flex; gap: 8px; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--win-gray-dark); }
.settings-actions .btn-modal { flex: 1; }

/* Toast Notifications */
#toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 2000; display: flex; flex-direction: column-reverse; gap: 10px; max-width: 400px; }
.toast { display: flex; align-items: center; gap: 10px; padding: 12px 16px; background: var(--win-gray); border: 2px outset var(--win-gray); box-shadow: 4px 4px 8px rgba(0,0,0,0.3); font-size: 12px; min-width: 300px; opacity: 0; transform: translateX(400px); transition: all 0.3s ease; }
.toast-show { opacity: 1; transform: translateX(0); }
.toast-hide { opacity: 0; transform: translateX(400px); }
.toast-icon { font-size: 16px; flex-shrink: 0; }
.toast-message { flex: 1; line-height: 1.4; color: var(--text-primary); }
.toast-close { background: none; border: none; font-size: 18px; cursor: pointer; padding: 0; width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; color: var(--win-gray-darker); flex-shrink: 0; }
.toast-close:hover { background: var(--win-gray-dark); color: var(--bg-white); }
.toast-error { background: #ffebee; border-color: #c62828; }
.toast-error .toast-message { color: #b71c1c; }
.toast-success { background: #e8f5e9; border-color: #2e7d32; }
.toast-success .toast-message { color: #1b5e20; }
.toast-warning { background: #fff3cd; border-color: #ffc107; }
.toast-warning .toast-message { color: #856404; }
.toast-info { background: #e3f2fd; border-color: #1976d2; }
.toast-info .toast-message { color: #0d47a1; }

/* Dark theme toast variations */
:root[data-theme="experimental"] .toast-error { background: #5a2a2a; border-color: #ff6666; }
:root[data-theme="experimental"] .toast-error .toast-message { color: #ff8888; }
:root[data-theme="experimental"] .toast-success { background: #2a4a2a; border-color: #66ff66; }
:root[data-theme="experimental"] .toast-success .toast-message { color: #88ff88; }
:root[data-theme="experimental"] .toast-warning { background: #5a4a2a; border-color: #ffcc66; }
:root[data-theme="experimental"] .toast-warning .toast-message { color: #ffdd99; }
:root[data-theme="experimental"] .toast-info { background: #2a3a5a; border-color: #6699ff; }
:root[data-theme="experimental"] .toast-info .toast-message { color: #88bbff; }

/* Chart Builder */
.chart-builder-view { display: flex; flex-direction: column; height: 100%; }
.chart-builder-container { display: flex; gap: 16px; height: 100%; overflow: hidden; }

/* Left Panel: Configuration */
.chart-builder-config { flex: 0 0 33.33%; display: flex; flex-direction: column; gap: 16px; padding: 16px; overflow-y: auto; border-right: 1px solid var(--win-gray-dark); background: var(--bg-light); }
.chart-builder-header { margin-bottom: 8px; }
.chart-builder-section { display: flex; flex-direction: column; gap: 8px; }
.chart-builder-label { font-size: 11px; font-weight: bold; color: var(--text-primary); }

/* Mark Type Row */
.mark-type-row { display: flex; align-items: center; gap: 12px; }
.mark-toggle-group { display: flex; gap: 0; border: 1px solid var(--win-gray-dark); border-radius: 2px; background: var(--bg-white); flex: 1; }
.mark-toggle-group .btn { flex: 1; border: none; border-radius: 0; border-right: 1px solid var(--win-gray-dark); font-size: 11px; font-weight: bold; min-width: 0; line-height: 1.4; }
.mark-toggle-group .btn:last-child { border-right: none; }
.mark-toggle-group .btn.active { background: var(--win-blue); color: var(--bg-white); }

/* Dimensions */
.chart-dimensions-group { display: flex; gap: 12px; }
.dimension-input-group { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.dimension-label { font-size: 10px; color: var(--text-secondary); }

/* Encodings */
.encoding-group { background: var(--bg-white); border: 1px solid var(--win-gray-dark); padding: 12px; border-radius: 2px; margin-top: 8px; display: flex; flex-direction: column; gap: 8px; }
.encoding-row { display: flex; align-items: center; gap: 8px; }
.encoding-header { font-size: 11px; font-weight: bold; color: var(--text-primary); min-width: 70px; flex-shrink: 0; }
.encoding-row select { flex: 1; }
.encoding-type { display: flex; align-items: center; gap: 8px; }
.encoding-type-label { font-size: 11px; font-weight: normal; color: var(--text-primary); min-width: 70px; flex-shrink: 0; }

/* Type Toggle Group (similar to view-toggle-group) */
.type-toggle-group { display: flex; gap: 0; border: 1px solid var(--win-gray-dark); border-radius: 2px; background: var(--bg-white); flex: 1; }
.type-toggle-group .btn { flex: 1; border: none; border-radius: 0; border-right: 1px solid var(--win-gray-dark); font-size: 11px; font-weight: bold; line-height: 1.4; }
.type-toggle-group .btn:last-child { border-right: none; }
.type-toggle-group .btn.active { background: var(--win-blue); color: var(--bg-white); }

/* Error and Actions */
.chart-builder-error { font-size: 11px; color: #c62828; padding: 8px; background: #ffebee; border: 1px solid #c62828; border-radius: 2px; display: none; }
.chart-builder-error:not(:empty) { display: block; }
.chart-builder-actions { display: flex; gap: 8px; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--win-gray-dark); }

/* Right Panel: Preview */
.chart-builder-preview { flex: 1; display: flex; flex-direction: column; background: var(--bg-white); }
.chart-preview-header { font-size: 11px; font-weight: bold; padding: 8px 16px; background: var(--win-gray-light); border-bottom: 1px solid var(--win-gray-dark); color: var(--text-primary); }
.chart-preview-container { flex: 1; display: flex; align-items: center; justify-content: center; overflow: auto; position: relative; }
.chart-preview-placeholder { font-size: 11px; color: var(--text-secondary); text-align: center; padding: 20px; }

/* Dark theme overrides */
:root[data-theme="experimental"] .chart-builder-config { background: var(--bg-light); border-right-color: var(--win-gray-dark); }
:root[data-theme="experimental"] .mark-toggle-group { background: var(--bg-white); border-color: var(--win-gray-dark); }
:root[data-theme="experimental"] .mark-toggle-group .btn { border-right-color: var(--win-gray-dark); }
:root[data-theme="experimental"] .encoding-group { background: var(--bg-white); border-color: var(--win-gray-dark); }
:root[data-theme="experimental"] .type-toggle-group { background: var(--bg-white); border-color: var(--win-gray-dark); }
:root[data-theme="experimental"] .type-toggle-group .btn { border-right-color: var(--win-gray-dark); }
:root[data-theme="experimental"] .chart-builder-preview { background: var(--bg-white); }
:root[data-theme="experimental"] .chart-preview-header { background: var(--win-gray-light); border-bottom-color: var(--win-gray-dark); }
:root[data-theme="experimental"] .chart-builder-error { background: #5a2a2a; border-color: #ff6666; color: #ff8888; }