/* LogicLens - Technical Workspace Theme */

/* CSS Variables */
:root {
    /* Technical Slate Palette */
    --bg-app: #f1f5f9;          /* Main application background */
    --bg-panel: #ffffff;        /* Panel backgrounds */
    --bg-sidebar: #192d32;      /* Dark sidebar */
    --bg-header: #ffffff;
    --bg-table-header: #f8fafc;
    --bg-hover: #f1f5f9;
    --bg-selected: #e2e8f0;

    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-sidebar: #94a3b8;
    --text-sidebar-active: #ffffff;
    --text-mono: #334155;

    /* Accents - Logo Blue */
    --accent-primary: #17675f;  /* Logo Blue */
    --accent-hover: #12534c;
    --accent-bright: #b5efcc;   /* Bright accent from logo */
    --border-color: #cbd5e1;
    --border-light: #e2e8f0;

    /* Fonts */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Fira Code', 'Roboto Mono', 'Courier New', monospace;

    /* Spacing & sizing */
    --sidebar-width: 260px;
    --header-height: 50px;

    /* Desktop density */
    --dd-row-height: 26px;
    --dd-padding-xs: 4px;
    --dd-padding-sm: 6px;
    --dd-padding-md: 8px;
    --dd-font-size: 13px;
    --dd-border-color: #d0d0d0;
    --dd-row-alt: #f8f9fa;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-app);
    color: var(--text-primary);
    line-height: 1.5;
    height: 100vh;
    overflow: hidden; /* App-like feel */
    display: flex;
}

/* --- Sidebar --- */
.app-sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-sidebar);
    color: var(--text-sidebar);
    display: flex;
    flex-direction: column;
    height: 100vh;
    border-right: 1px solid #334155;
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 1rem;
    background-color: #0f172a;
    border-bottom: 1px solid #334155;
}

.sidebar-logo {
    width: 24px;
    height: 24px;
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.sidebar-brand {
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.02em;
}

.sidebar-brand-logic {
    color: #ffffff;
}

.sidebar-brand-lens {
    color: var(--accent-primary);
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.nav-section-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.5rem 1rem;
    color: #475569;
    font-weight: 700;
    margin-top: 1rem;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.5rem 1rem;
    color: var(--text-sidebar);
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background-color: #334155;
    color: white;
}

.nav-item.active {
    background-color: #334155;
    color: var(--text-sidebar-active);
    border-left-color: var(--accent-primary);
}

/* Sidebar project display */
.sidebar-project {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    cursor: default;
}

.sidebar-project-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-sidebar-active);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.sidebar-project-number {
    font-size: 0.75rem;
    color: white;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid #334155;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.sidebar-placeholder {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    color: #475569;
    font-style: italic;
}

/* --- Main Layout --- */
.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background-color: var(--bg-app);
}

.app-header {
    height: var(--header-height);
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
}

.workspace-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.selected-types-count {
    font-size: 0.75rem;
    color: var(--accent-primary);
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    background-color: #e0e7ff;
    border-radius: 4px;
}

.header-divider {
    width: 1px;
    height: 24px;
    background-color: var(--border-color);
    margin: 0 0.25rem;
}

.back-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
}
.back-link:hover {
    color: var(--accent-primary);
}

.app-content {
    flex: 1;
    padding: 1.5rem;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

/* Override for export-configurator - it has its own layout */
.app-content.export-layout {
    flex-direction: row;
    padding: 1rem;
}

/* --- Data Table Styles (Replacing Cards) --- */
.data-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.data-toolbar {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-panel);
}

.table-responsive {
    flex: 1;
    overflow: auto;
}

.tech-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.875rem;
}

.tech-table th {
    background-color: var(--bg-table-header);
    color: var(--text-secondary);
    font-weight: 600;
    text-align: left;
    padding: 0.75rem 1rem;
    position: sticky;
    top: 0;
    white-space: nowrap;
    box-shadow: inset 0 -1px 0 var(--border-color);
}

.tech-table td {
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

.tech-table tr:hover {
    background-color: var(--bg-hover);
}

/* Compact variant for dense lists */
.tech-table.compact th {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

.tech-table.compact td {
    padding: 0.2rem 0.5rem;
    font-size: 0.8rem;
}

.mono-text {
    font-family: var(--font-mono);
    color: var(--text-mono);
    font-size: 0.85em; /* Mono looks big usually */
}

/* --- Status Badges (Technical Look) --- */
.status-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-badge.success { background: #dcfce7; color: #166534; }
.status-badge.warning { background: #fefce8; color: #854d0e; }
.status-badge.error   { background: #fee2e2; color: #991b1b; }

/* --- Buttons (Compact) --- */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.8rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 4px;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    gap: 0.5rem;
}

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

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

/* --- Search Input (Dense) --- */
.search-input-dense {
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
    min-width: 250px;
}

/* --- Bottom Output Panel (Terminal-like) --- */
.output-drawer {
    height: 150px;
    background-color: #0f172a;
    border-top: 1px solid #334155;
    color: #e2e8f0;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
}

.output-header {
    padding: 0.25rem 1rem;
    background-color: #192d32;
    border-bottom: 1px solid #334155;
    font-size: 0.75rem;
    text-transform: uppercase;
    display: flex;
    justify-content: space-between;
}

.output-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 1rem;
}

.log-line { margin-bottom: 0.15rem; }
.log-line.info { color: #94a3b8; }
.log-line.success { color: #4ade80; }
.log-line.error { color: #f87171; }

/* Output drawer collapsed state */
.output-drawer.collapsed {
    height: auto;
}

.output-drawer.collapsed .output-content {
    display: none;
}

.output-chevron {
    font-size: 0.65rem;
    transition: transform 0.2s ease;
}

.output-drawer:not(.collapsed) .output-chevron {
    transform: rotate(90deg);
}

/* Modals */
.modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal.hidden { display: none; }
.modal-backdrop {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
}
.modal-content {
    position: relative;
    background: white;
    padding: 1.5rem;
    width: 400px;
    border-radius: 6px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}
.modal-header h3 { margin-bottom: 1rem; font-size: 1.1rem; }

.modal-body {
    padding: 1rem 0;
}
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.875rem; margin-bottom: 0.25rem; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}
.modal-footer {
    margin-top: 1.5rem;
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

/* --- Utility Classes --- */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.items-center { align-items: center; }

/* Gap utilities */
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

/* Margin utilities */
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }

/* Text utilities */
.text-secondary { color: var(--text-secondary); }
.text-danger { color: #dc2626; }
.text-success { color: #16a34a; }
.text-center { text-align: center; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }

/* --- Button Variants --- */
.btn-secondary {
    background-color: var(--bg-panel);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.btn-secondary:hover { background-color: var(--bg-hover); }

.btn-danger {
    background-color: #dc2626;
    color: white;
    border-color: #dc2626;
}
.btn-danger:hover { background-color: #b91c1c; }

.btn-outline.text-danger {
    color: #dc2626;
    border-color: #fecaca;
}
.btn-outline.text-danger:hover {
    background-color: #fef2f2;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.select-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    border: 1px solid var(--border-color, #ccc);
    border-radius: 4px;
    background: var(--bg-main, #fff);
    color: var(--text-primary, #333);
    cursor: pointer;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* --- Breadcrumb Navigation --- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--accent-primary);
    text-decoration: none;
}
.breadcrumb a:hover { text-decoration: underline; }

.breadcrumb-separator {
    color: var(--border-color);
}

/* --- Tabs --- */
.tabs {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.tab {
    padding: 0.5rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all 0.15s;
}

.tab:hover {
    color: var(--text-primary);
    background-color: var(--bg-hover);
}

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

/* --- Cards --- */
.card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.5rem;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.card-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- Table Container (for pages without data-panel) --- */
.table-container {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: auto;
}

.table-container table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table-container th {
    background-color: var(--bg-table-header);
    color: var(--text-secondary);
    font-weight: 600;
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    white-space: nowrap;
}

.table-container td {
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

.table-container tr:hover {
    background-color: var(--bg-hover);
}

/* --- Form Elements --- */
.search-input {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
    width: 100%;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"],
.checkbox-label input[type="radio"] {
    width: 1rem;
    height: 1rem;
    accent-color: var(--accent-primary);
}

/* --- Loading & Empty States --- */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.spinner-sm {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
    vertical-align: middle;
}

.loading-sm {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.empty-state {
    padding: 3rem;
    text-align: center;
    color: var(--text-secondary);
}

.empty-state p {
    margin-bottom: 0.5rem;
}

/* --- Progress Bar --- */
.progress-bar {
    height: 8px;
    background-color: var(--border-light);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--accent-primary);
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* --- Modal Enhancements --- */
.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-secondary);
    line-height: 1;
    padding: 0.25rem;
}
.modal-close:hover { color: var(--text-primary); }

.modal-cancel { /* Same as btn-outline but semantic */ }
.modal-close-btn { /* Same as btn-secondary but semantic */ }

/* --- Metadata Label (reusable) --- */
.meta-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.meta-value {
    color: var(--text-primary);
}

.meta-value-lg {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
}

/* --- Metadata Grid --- */
.metadata-grid {
    padding: 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.metadata-grid .span-2 {
    grid-column: span 2;
}

/* --- Compact Project Metadata Bar --- */
.project-meta-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 1rem;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 0.75rem;
    gap: 1rem;
}

.meta-bar-main {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
    flex: 1;
}

.meta-bar-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    white-space: nowrap;
}

.meta-bar-divider {
    color: var(--border-color);
    font-weight: 300;
}

.meta-bar-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    white-space: nowrap;
}

.meta-bar-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.meta-bar-desc {
    min-width: 0;
    flex: 1;
}

.meta-bar-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
}

/* --- Panel Variants --- */
.data-panel-auto {
    flex: 0 0 auto;
    height: auto;
}

/* --- Page Header (within app-content) --- */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

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

/* --- Section Header (for panels) --- */
.section-title {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
}

/* --- Search Bar --- */
.search-bar {
    margin-bottom: 1rem;
}

/* --- Select Styling --- */
.form-group select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
    background-color: var(--bg-panel);
    color: var(--text-primary);
}

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

/* Small text helper */
.form-group small {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Required field indicator */
.required {
    color: #dc2626;
}

/* ============================================
   Function Blocks Page - IDE-Style Layout
   ============================================ */

/* Workspace Content Layout (Tree + Table) */
.workspace-content {
    display: flex;
    flex: 1;
    overflow: hidden;
    background-color: var(--bg-app);
}

/* --- Tree Panel (Left Sidebar) --- */
.tree-panel {
    width: 220px;
    min-width: 180px;
    max-width: 350px;
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tree-header {
    padding: 0.75rem 1rem;
    background-color: var(--bg-table-header);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tree-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.btn-icon {
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 3px;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* Dropdown Menu */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    min-width: 150px;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 100;
    padding: 4px 0;
}

.dropdown-item {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: none;
    background: none;
    text-align: left;
    font-size: 0.85rem;
    color: var(--text-primary);
    cursor: pointer;
}

.dropdown-item:hover {
    background-color: var(--bg-hover);
}

.dropdown-item-danger {
    color: #dc2626;
}

.dropdown-item-danger:hover {
    background-color: #fef2f2;
}

/* Row-level dropdown menu */
.row-dropdown {
    position: relative;
}

.row-dropdown .dropdown-menu {
    right: 0;
    min-width: 120px;
}

.btn-row-menu {
    padding: 2px 6px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.85rem;
    line-height: 1;
}

.btn-row-menu:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

/* Row delete button with hover expand */
.btn-delete-row {
    display: inline-flex;
    align-items: center;
    gap: 0;
    padding: 3px 6px;
    border: 1px solid #fca5a5;
    border-radius: 3px;
    background: transparent;
    color: #dc2626;
    cursor: pointer;
    font-size: 0.75rem;
    transition: gap 0.15s ease, padding 0.15s ease;
    overflow: hidden;
}

.btn-delete-row .delete-icon {
    width: 12px;
    height: 12px;
    fill: currentColor;
    flex-shrink: 0;
}

.btn-delete-row .delete-text {
    max-width: 0;
    overflow: hidden;
    opacity: 0;
    white-space: nowrap;
    transition: max-width 0.15s ease, opacity 0.15s ease;
}

.btn-delete-row:hover {
    background-color: #fef2f2;
    gap: 4px;
}

.btn-delete-row:hover .delete-text {
    max-width: 50px;
    opacity: 1;
}

.tree-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 0;
}

/* Tree Node Styles */
.tree-node {
    cursor: pointer;
    user-select: none;
}

.tree-node-header {
    display: flex;
    align-items: center;
    padding: 0.4rem 0.75rem;
    gap: 0.5rem;
    transition: background-color 0.1s;
}

.tree-node-header:hover {
    background-color: var(--bg-hover);
}

.tree-node.selected > .tree-node-header {
    background-color: #e0e7ff;
    border-left: 2px solid var(--accent-primary);
}

.tree-chevron {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--text-secondary);
    transition: transform 0.15s ease;
    flex-shrink: 0;
}

.tree-node.expanded > .tree-node-header .tree-chevron {
    transform: rotate(90deg);
}

.tree-node-label {
    flex: 1;
    font-size: 0.875rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tree-node-count {
    font-size: 0.75rem;
    color: var(--text-secondary);
    background-color: var(--bg-hover);
    padding: 0.1rem 0.4rem;
    border-radius: 10px;
    flex-shrink: 0;
}

/* Tree Children (Parameters) */
.tree-children {
    display: none;
    padding-left: 1.5rem;
}

.tree-node.expanded > .tree-children {
    display: block;
}

.tree-param {
    display: flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.tree-param:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.tree-param-icon {
    width: 12px;
    color: var(--text-secondary);
}

.tree-param-name {
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.tree-param-type {
    font-size: 0.7rem;
    color: #64748b;
}

/* --- Resizer --- */
.resizer {
    width: 4px;
    cursor: col-resize;
    background-color: transparent;
    transition: background-color 0.15s;
    flex-shrink: 0;
}

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

/* --- Main Panel --- */
.main-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 1rem;
    gap: 0.75rem;
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toolbar-stats {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* --- Expandable Table --- */
.expandable-table tbody tr {
    cursor: pointer;
}

.expandable-table tbody tr:hover {
    background-color: var(--bg-hover);
}

.row-chevron {
    width: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.75rem;
    transition: transform 0.15s ease;
}

.expandable-row.expanded .row-chevron {
    transform: rotate(90deg);
}

/* Expanded Row Content (Parameters) */
.row-expand {
    background-color: #f8fafc;
}

.row-expand td {
    padding: 0 !important;
    border-bottom: 1px solid var(--border-color) !important;
}

.param-container {
    padding: 0.75rem 1rem 0.75rem 3rem;
}

.param-table-wrapper {
    background-color: white;
    border: 1px solid var(--border-light);
    border-radius: 4px;
    overflow: hidden;
}

.param-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.param-table th {
    background-color: var(--bg-table-header);
    padding: 0.5rem 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-light);
}

.param-table td {
    padding: 0.4rem 0.75rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

.param-table tr:last-child td {
    border-bottom: none;
}

.param-table tr:hover {
    background-color: var(--bg-hover);
}

.param-value {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-mono);
}

.param-usage {
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
}

.param-usage.input {
    background-color: #fef3c7;
    color: #92400e;
}

.param-usage.output {
    background-color: #d1fae5;
    color: #065f46;
}

.param-usage.inout {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Loading State for Expanded Row */
.param-loading {
    padding: 1rem;
    text-align: center;
    color: var(--text-secondary);
}

/* --- Pagination Bar --- */
.pagination-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
}

/* --- Export Drawer (Bottom Panel) --- */
.export-drawer {
    background-color: var(--bg-panel);
    border-top: 1px solid var(--border-color);
    transition: height 0.2s ease;
    overflow: hidden;
}

.export-drawer.collapsed {
    height: 40px;
}

.export-drawer.expanded {
    height: 280px;
}

.drawer-header {
    height: 40px;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-table-header);
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
}

.drawer-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.chevron-icon {
    display: inline-block;
    transition: transform 0.15s ease;
    font-size: 0.75rem;
}

.export-drawer.expanded .chevron-icon {
    transform: rotate(90deg);
}

.drawer-actions {
    display: flex;
    gap: 0.5rem;
}

.drawer-content {
    padding: 1rem;
    overflow-y: auto;
    height: calc(100% - 40px);
}

/* Export Layout - Two Panel */
.export-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
    height: 100%;
}

.export-schema,
.export-preview-panel {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.section-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.schema-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.field-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-primary);
}

.column-count {
    font-weight: 400;
    color: var(--text-secondary);
}

.radio-group {
    display: flex;
    gap: 1rem;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.875rem;
    cursor: pointer;
}

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

.export-select {
    padding: 0.35rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
    min-width: 150px;
    background-color: white;
}

/* Column Checkboxes with Metadata */
.columns-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    max-height: 120px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.column-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.5rem;
    background-color: var(--bg-hover);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
}

.column-checkbox:hover {
    background-color: var(--bg-selected);
}

.column-checkbox input[type="checkbox"] {
    accent-color: var(--accent-primary);
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.column-name {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    flex: 1;
}

.column-type {
    font-size: 0.65rem;
    color: var(--text-secondary);
    padding: 0.1rem 0.3rem;
    background-color: var(--bg-panel);
    border-radius: 2px;
}

.column-usage {
    font-size: 0.6rem;
    padding: 0.1rem 0.3rem;
    border-radius: 2px;
    text-transform: uppercase;
}

.column-usage.input {
    background-color: #fef3c7;
    color: #92400e;
}

.column-usage.output {
    background-color: #d1fae5;
    color: #065f46;
}

.column-usage.inout {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Preview Panel */
.preview-table-container {
    flex: 1;
    overflow: auto;
    background-color: var(--bg-panel);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    min-height: 80px;
}

.preview-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 80px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
}

.preview-table th {
    background-color: var(--bg-table-header);
    padding: 0.5rem 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.7rem;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    white-space: nowrap;
}

.preview-table td {
    padding: 0.4rem 0.75rem;
    border-bottom: 1px solid var(--border-light);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    white-space: nowrap;
}

.preview-table tr:hover {
    background-color: var(--bg-hover);
}

.export-stats {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: right;
    padding: 0.25rem 0;
}

/* Chevron in header button */
.chevron-down {
    font-size: 0.7rem;
    margin-left: 0.25rem;
}

/* Adjustments for the output drawer when export drawer is open */
.app-main {
    display: flex;
    flex-direction: column;
}

/* Ensure proper stacking */
.workspace-content {
    flex: 1;
    min-height: 0;
}

/* Hide scrollbar in tree but keep functionality */
.tree-content::-webkit-scrollbar {
    width: 6px;
}

.tree-content::-webkit-scrollbar-track {
    background: transparent;
}

.tree-content::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.tree-content::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* ============================================
   Streamlined Data Browser Layout
   ============================================ */

/* Two-Panel Browser Layout */
.browser-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
    background-color: var(--bg-app);
}

/* Left Panel - Block Type List */
.type-list-panel {
    width: 220px;
    min-width: 180px;
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.type-list-panel .panel-header {
    padding: 0.75rem 1rem;
    background-color: var(--bg-table-header);
    border-bottom: 1px solid var(--border-color);
}

.type-list-panel .panel-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.type-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.5rem 0;
}

/* Fun hover effect animations */
@keyframes pulse {
    0%, 100% { transform: scale(1.1); }
    50% { transform: scale(1.2); }
}

@keyframes rainbow {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(360deg); }
}

@keyframes wobble {
    0%, 100% { transform: translateX(15px) rotate(-2deg) scale(1.15); }
    25% { transform: translateX(18px) rotate(2deg) scale(1.18); }
    50% { transform: translateX(15px) rotate(-1deg) scale(1.15); }
    75% { transform: translateX(18px) rotate(1deg) scale(1.18); }
}

@keyframes glow-pulse {
    0%, 100% {
        text-shadow: 0 0 5px #ff00ff, 0 0 10px #ff00ff, 0 0 15px #ff00ff;
    }
    33% {
        text-shadow: 0 0 5px #00ffff, 0 0 10px #00ffff, 0 0 15px #00ffff;
    }
    66% {
        text-shadow: 0 0 5px #ffff00, 0 0 10px #ffff00, 0 0 15px #ffff00;
    }
}

@keyframes confetti-1 {
    0% { transform: translate(0, 0) rotate(0deg) scale(1); opacity: 1; }
    100% { transform: translate(-30px, -40px) rotate(360deg) scale(0); opacity: 0; }
}

@keyframes confetti-2 {
    0% { transform: translate(0, 0) rotate(0deg) scale(1); opacity: 1; }
    100% { transform: translate(35px, -35px) rotate(-360deg) scale(0); opacity: 0; }
}

@keyframes confetti-3 {
    0% { transform: translate(0, 0) rotate(0deg) scale(1); opacity: 1; }
    100% { transform: translate(-25px, 30px) rotate(270deg) scale(0); opacity: 0; }
}

@keyframes confetti-4 {
    0% { transform: translate(0, 0) rotate(0deg) scale(1); opacity: 1; }
    100% { transform: translate(40px, 25px) rotate(-270deg) scale(0); opacity: 0; }
}

@keyframes sparkle {
    0%, 100% { opacity: 0; transform: scale(0); }
    50% { opacity: 1; transform: scale(1); }
}

@keyframes gentle-heartbeat {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.5); opacity: 1; }
}

.type-item {
    display: flex;
    align-items: center;
    padding: 0.15rem 0.6rem;
    gap: 0.35rem;
    cursor: pointer;
    border-left: 2px solid transparent;
    transition: background-color 0.1s, border-color 0.1s;
    position: relative;
    overflow: visible;
}

.type-item:hover {
    background-color: var(--bg-hover);
    z-index: 100;
}

/* Confetti particles on hover - originate from the right side to avoid checkbox */
.type-item:hover::before {
    content: "🎉 ✨ 🌟 🎊";
    position: absolute;
    right: 10px;
    top: 50%;
    font-size: 0.8rem;
    pointer-events: none;
    animation: confetti-1 0.6s ease-out forwards;
    z-index: 1000;
}

.type-item:hover::after {
    content: "⭐ 🎀 💫 🎈";
    position: absolute;
    right: 20px;
    top: 50%;
    font-size: 0.7rem;
    pointer-events: none;
    animation: confetti-2 0.7s ease-out 0.1s forwards;
    z-index: 1000;
}

.type-item.active {
    background-color: #e0e7ff;
    border-left-color: var(--accent-primary);
}

.type-item-checkbox {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    accent-color: var(--accent-primary);
    position: relative;
    z-index: 2000;
}

.type-item-name {
    flex: 1;
    font-size: 0.75rem;
    font-weight: 500;
    font-family: var(--font-mono);
    position: relative;
    transition: transform 0.15s ease-out;
}

/* The magic happens here - all the fun on hover! */
.type-item:hover .type-item-name {
    animation:
        wobble 0.3s ease-in-out infinite,
        glow-pulse 1s ease-in-out infinite,
        rainbow 2s linear infinite;
    background: linear-gradient(90deg, #ff0000, #ff7f00, #ffff00, #00ff00, #0000ff, #8b00ff, #ff0000);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

/* Extra sparkle particles from the name itself */
.type-item-name::before,
.type-item-name::after {
    position: absolute;
    font-size: 0.6rem;
    pointer-events: none;
    opacity: 0;
}

.type-item-name::before {
    content: "✨";
    left: -15px;
    top: -10px;
}

.type-item-name::after {
    content: "💥";
    right: -15px;
    bottom: -8px;
}

.type-item:hover .type-item-name::before {
    animation: confetti-3 0.5s ease-out forwards, sparkle 0.4s ease-in-out 0.5s infinite;
}

.type-item:hover .type-item-name::after {
    animation: confetti-4 0.6s ease-out 0.15s forwards, sparkle 0.5s ease-in-out 0.6s infinite;
}

.type-item-count {
    font-size: 0.6rem;
    color: var(--text-secondary);
    padding: 0;
    min-width: auto;
    text-align: right;
    position: relative;
}

/* Subtle pulsing heart for selected/checked items - appears after the block name */
.type-item:has(.type-item-checkbox:checked) .type-item-name::after {
    content: "♥" !important;
    display: inline-block;
    position: relative !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    top: auto !important;
    margin-left: 6px;
    font-size: 0.6rem;
    color: #e91e63;
    opacity: 1 !important;
    animation: gentle-heartbeat 1.5s ease-in-out infinite !important;
    pointer-events: none;
    vertical-align: middle;
}

.type-list-panel .panel-footer {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-secondary);
    background-color: var(--bg-table-header);
}

/* Right Panel - Data Grid */
.data-grid-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 1rem;
    background-color: var(--bg-app);
}

.grid-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 0.75rem;
}

.grid-title {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

#activeTypeName {
    font-size: 1.1rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

#activeTypeCount {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.grid-actions {
    display: flex;
    gap: 0.5rem;
}

/* Scrollable Grid Container */
.grid-container {
    flex: 1;
    overflow: auto;
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.grid-container .empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 200px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Data Grid Table */
.data-grid {
    width: max-content;
    min-width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.8rem;
}

.data-grid th {
    position: sticky;
    top: 0;
    z-index: 10;
    padding: 0.6rem 0.75rem;
    text-align: left;
    white-space: nowrap;
    font-weight: 600;
    /* Border baked into background using gradient - ensures perfect alignment */
    background: linear-gradient(to top, var(--border-color) 2px, var(--bg-table-header) 2px);
}

/* Sticky First Column (Name) */
.data-grid th:first-child,
.data-grid td:first-child {
    position: sticky;
    left: 0;
    z-index: 5;
    background-color: inherit;
    border-right: 1px solid var(--border-color);
}

.data-grid th:first-child {
    z-index: 15; /* Above both sticky row and column */
    background: linear-gradient(to top, var(--border-color) 2px, var(--bg-table-header) 2px);
}

.data-grid td:first-child {
    background-color: var(--bg-panel);
}

.data-grid tr:hover td:first-child {
    background-color: var(--bg-hover);
}

/* Column Header with Checkbox */
.col-header {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    cursor: pointer;
}

.col-header input[type="checkbox"] {
    accent-color: var(--accent-primary);
    width: 14px;
    height: 14px;
}

.col-header-name {
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.02em;
}

/* Excluded column styling - use color instead of opacity to keep background opaque for sticky headers */
th.col-excluded {
    color: #94a3b8;
    background-color: var(--bg-table-header);
}

td.col-excluded {
    color: #cbd5e1;
    background-color: var(--bg-panel);
}

/* Click-to-toggle column selection */
.data-grid th[data-column] {
    cursor: pointer;
    user-select: none;
    transition: opacity 0.15s ease, background-color 0.15s ease;
}

.data-grid th[data-column]:hover {
    background-color: var(--bg-selected);
}

/* Dimmed state for unselected columns */
.data-grid th.column-dimmed {
    color: var(--text-secondary);
    /* Border baked into background using gradient - ensures perfect alignment */
    background: linear-gradient(to top, var(--border-color) 2px, #e9ecef 2px);
}

.data-grid td.column-dimmed {
    color: #9ca3af;
    background-color: #f5f5f5;
}

/* Ensure sticky first column (Name) is not affected by dimming hover */
.data-grid th:first-child {
    cursor: default;
}

.data-grid th:first-child:hover {
    background-color: var(--bg-table-header);
}

/* Data Cells */
.data-grid td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-light);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    white-space: nowrap;
}

.data-grid tbody tr:hover td {
    background-color: var(--bg-hover);
}

/* Name column special styling */
.data-grid td:first-child {
    font-weight: 500;
    color: var(--text-primary);
}

/* Grid Footer */
.grid-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.75rem;
    margin-top: 0.75rem;
    border-top: 1px solid var(--border-light);
}

#gridStats,
#viewEditorGridStats {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.pagination-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.pagination-controls span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Format Select in Header */
.format-select {
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
    background-color: white;
    cursor: pointer;
}

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

/* Header Layout */
.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Grid Container Scrollbar Styling */
.grid-container::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.grid-container::-webkit-scrollbar-track {
    background: var(--bg-hover);
}

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

.grid-container::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* Type list scrollbar */
.type-list::-webkit-scrollbar {
    width: 6px;
}

.type-list::-webkit-scrollbar-track {
    background: transparent;
}

.type-list::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.type-list::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* ============================================
   Column Selection Management
   ============================================ */

/* Grid Controls Row */
.grid-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Saved Views Controls */
.saved-views-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.views-select {
    padding: 0.3rem 0.5rem;
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    min-width: 140px;
    background-color: white;
    cursor: pointer;
}

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

.star-icon {
    font-size: 1rem;
    line-height: 1;
}

.star-icon.filled {
    color: #f59e0b;
}

.view-controls-divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 0.25rem;
}

/* Apply Defaults Button in panel footer */
.panel-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--bg-panel);
    color: var(--text-primary);
    padding: 12px 20px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
    z-index: 1000;
    animation: toastFadeIn 0.2s ease;
}

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

.preset-select {
    padding: 0.3rem 0.5rem;
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    min-width: 120px;
    background-color: white;
    cursor: pointer;
}

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

.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.toggle-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent-primary);
}

/* Column Picker Panel */
.column-picker {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 0.75rem;
    padding: 0.5rem 0.75rem;
}

.picker-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.7rem;
    margin-bottom: 0.5rem;
}

.picker-label {
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 600;
    letter-spacing: 0.03em;
}

#columnStats {
    color: var(--text-secondary);
}

.picker-header .btn-link {
    font-size: 0.7rem;
    color: var(--accent-primary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    text-decoration: none;
}

.picker-header .btn-link:hover {
    text-decoration: underline;
}

/* Picker toggle button */
.picker-toggle {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
    transition: color 0.15s;
}

.picker-toggle:hover {
    color: var(--text-primary);
}

.picker-chevron {
    font-size: 0.6rem;
    transition: transform 0.2s ease;
    display: inline-block;
}

.column-picker.collapsed .picker-chevron {
    transform: rotate(-90deg);
}

/* Collapsible content */
.picker-content {
    max-height: 500px;
    overflow: visible;
    transition: max-height 0.2s ease, opacity 0.2s ease;
    opacity: 1;
    padding-top: 0.5rem;
    display: block;
    width: 100%;
}

.column-picker.collapsed .picker-content {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    padding-bottom: 0;
}

.column-picker.collapsed .picker-header {
    margin-bottom: 0;
}

.picker-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    max-height: 100px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

/* Column Chip */
.column-chip {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.5rem;
    background: var(--bg-hover);
    border-radius: 3px;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.1s;
}

.column-chip:hover {
    background: var(--bg-selected);
}

.column-chip.selected {
    background: #dbeafe;
    border-color: var(--accent-primary);
}

.column-chip input {
    width: 12px;
    height: 12px;
    accent-color: var(--accent-primary);
}

.column-chip span {
    white-space: nowrap;
}

/* Picker chips scrollbar */
.picker-chips::-webkit-scrollbar {
    width: 4px;
}

.picker-chips::-webkit-scrollbar-track {
    background: transparent;
}

.picker-chips::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 2px;
}

.picker-chips::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* ============================================
   Column Selector Modal
   ============================================ */

.column-modal-content {
    width: 700px;
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    padding: 0;
}

.column-modal-header {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem 0.75rem;
    border-bottom: 1px solid var(--border-light);
}

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

.modal-stats {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.column-modal-actions {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-hover);
    border-bottom: 1px solid var(--border-light);
}

.column-modal-grid {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.35rem;
    align-content: start;
}

.modal-column-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.6rem;
    background: var(--bg-hover);
    border-radius: 4px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.1s;
}

.modal-column-item:hover {
    background: var(--bg-selected);
}

.modal-column-item.selected {
    background: #dbeafe;
    border-color: var(--accent-primary);
}

.modal-column-item input {
    width: 14px;
    height: 14px;
    accent-color: var(--accent-primary);
    flex-shrink: 0;
}

.modal-column-name {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.column-modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    background-color: var(--bg-table-header);
}

/* Modal grid scrollbar */
.column-modal-grid::-webkit-scrollbar {
    width: 6px;
}

.column-modal-grid::-webkit-scrollbar-track {
    background: transparent;
}

.column-modal-grid::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.column-modal-grid::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* ============================================
   Tag-style Column Search Input
   ============================================ */

.column-tag-input {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 0.35rem;
    padding: 0.4rem 0.5rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    min-height: 36px;
    max-height: 120px;
    overflow-y: auto;
    cursor: text;
    width: 100%;
    box-sizing: border-box;
}

.column-tag-input:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

/* Selected Tags - flow within parent container */
.selected-tags {
    display: contents;  /* Tags flow directly in parent flex container */
}

.column-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.4rem;
    background: #dbeafe;
    border: 1px solid var(--accent-primary);
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-primary);
    white-space: nowrap;
}

.tag-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    padding: 0;
    background: none;
    border: none;
    border-radius: 2px;
    font-size: 0.9rem;
    color: var(--accent-primary);
    cursor: pointer;
    opacity: 0.7;
    line-height: 1;
}

.tag-remove:hover {
    opacity: 1;
    background: rgba(37, 99, 235, 0.15);
}

/* Drag handle for reordering tags */
.tag-drag-handle {
    cursor: grab;
    color: #94a3b8;
    font-size: 10px;
    letter-spacing: -2px;
    margin-right: 2px;
    user-select: none;
}

.column-tag:hover .tag-drag-handle {
    color: var(--accent-primary);
}

.column-tag[draggable="true"] {
    cursor: grab;
}

.column-tag.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.column-tag.drag-over {
    border-left: 2px solid #10b981;
    padding-left: calc(0.4rem - 2px);
}

/* Search Input */
#columnSearchInput,
#viewEditorSearchInput {
    flex: 1;
    min-width: 150px;
    border: none;
    outline: none;
    font-size: 0.8rem;
    padding: 0.2rem 0;
    background: transparent;
}

#columnSearchInput::placeholder,
#viewEditorSearchInput::placeholder {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* Suggestions Dropdown */
.column-suggestions {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    width: 280px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    z-index: 100;
}

.suggestion-item {
    padding: 0.5rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    cursor: pointer;
    color: var(--text-primary);
    transition: background 0.1s;
}

.suggestion-item:hover,
.suggestion-item.highlighted {
    background: var(--bg-hover);
}

.suggestion-item.highlighted {
    background: #eff6ff;
}

.suggestion-item strong {
    color: var(--accent-primary);
    font-weight: 600;
}

/* Suggestions scrollbar */
.column-suggestions::-webkit-scrollbar {
    width: 6px;
}

.column-suggestions::-webkit-scrollbar-track {
    background: transparent;
}

.column-suggestions::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.column-suggestions::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* ============================================
   Drop Overlay for Drag-and-Drop Import
   ============================================ */

.drop-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(37, 99, 235, 0.05);
    border: 3px dashed var(--accent-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    pointer-events: none;
    transition: all 0.2s ease;
}

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

.drop-overlay.active {
    background-color: rgba(37, 99, 235, 0.1);
    border-color: var(--accent-hover);
}

.drop-overlay-content {
    text-align: center;
    color: var(--accent-primary);
}

.drop-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.drop-text {
    font-size: 1.25rem;
    font-weight: 600;
}

.drop-subtext {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* ============================================
   Batch Upload Progress Modal
   ============================================ */

.batch-progress-container {
    margin-top: 1rem;
}

.batch-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.batch-progress-bar {
    height: 6px;
    background-color: var(--border-light);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.batch-progress-bar-fill {
    height: 100%;
    background-color: var(--accent-primary);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.upload-file-list {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-light);
    border-radius: 4px;
}

.upload-file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.8rem;
}

.upload-file-item:last-child {
    border-bottom: none;
}

.upload-file-name {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-right: 0.5rem;
}

.file-status {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    flex-shrink: 0;
}

.file-status.pending {
    background-color: var(--border-light);
    color: var(--text-secondary);
}

.file-status.uploading {
    background-color: #dbeafe;
    color: var(--accent-primary);
}

.file-status.complete {
    background-color: #dcfce7;
    color: #166534;
}

.file-status.error {
    background-color: #fee2e2;
    color: #991b1b;
}

/* Upload file list scrollbar */
.upload-file-list::-webkit-scrollbar {
    width: 6px;
}

.upload-file-list::-webkit-scrollbar-track {
    background: transparent;
}

.upload-file-list::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.upload-file-list::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* Programs panel needs relative positioning for drop overlay */
.data-panel {
    position: relative;
}

/* ============================================
   Export Configurator Layout (Simplified)
   ============================================ */

/* Two-column export layout */
.export-layout {
    display: flex;
    gap: 1rem;
    height: calc(100vh - var(--header-height));
    padding: 1rem;
    overflow: hidden;
}

/* Left sidebar - program selection */
.export-sidebar {
    width: 220px;
    flex-shrink: 0;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
}

.export-sidebar-header {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.export-sidebar-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
}

.export-sidebar-actions {
    display: flex;
    gap: 0.5rem;
}

.export-sidebar-actions .btn-link {
    font-size: 0.7rem;
    color: var(--accent-primary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.export-sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.export-sidebar-footer {
    padding: 0.375rem 0.75rem;
    border-top: 1px solid var(--border-light);
    font-size: 0.7rem;
    color: var(--text-secondary);
}

/* Right main area */
.export-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
}

/* Block types header */
.export-block-header {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.25rem 0;
    margin-bottom: 0.375rem;
}

.export-block-header .header-spacer {
    flex: 1;
}

.toggle-label-inline {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.toggle-label-inline input[type="checkbox"] {
    width: 12px;
    height: 12px;
    accent-color: var(--accent-primary);
}

/* Warnings - absolutely positioned to avoid layout shift */
.export-warnings {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.75rem;
    color: var(--text-warning, #b45309);
}

.export-block-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
}

.export-block-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Block type list - multi-column checklist */
.export-block-list {
    flex: 1;
    overflow-y: auto;
    column-count: 4;
    column-gap: 0.75rem;
    padding: 0.25rem;
}

.export-block-list .empty-state {
    column-span: all;
}

/* Block type item - simple checkbox row */
.blocktype-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.2rem 0.25rem;
    border-radius: 2px;
    cursor: pointer;
    break-inside: avoid;
    font-size: 0.75rem;
}

.blocktype-item:hover {
    background: var(--bg-hover);
}

.blocktype-item.selected {
    background: rgba(59, 130, 246, 0.08);
}

/* Default applied indicators - multiple styles for testing */
.default-indicator.dot {
    width: 6px;
    height: 6px;
    background: #10b981;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
    flex-shrink: 0;
}

.default-indicator.checkmark {
    color: #10b981;
    font-size: 12px;
    margin-left: 4px;
    font-weight: 600;
}

.default-indicator.star {
    color: #f59e0b;
    font-size: 11px;
    margin-left: 4px;
}

.default-indicator.badge {
    background: #10b981;
    color: white;
    font-size: 9px;
    padding: 1px 5px;
    border-radius: 8px;
    margin-left: 8px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.blocktype-item.has-default-border {
    border-left: 3px solid #10b981;
    padding-left: calc(0.5rem - 3px);
}

.blocktype-item.has-default-background {
    background: rgba(16, 185, 129, 0.1);
}

.blocktype-item input[type="checkbox"] {
    flex-shrink: 0;
    width: 12px;
    height: 12px;
    accent-color: var(--accent-primary);
}

/* Star toggle for applying/clearing default views */
.default-star {
    flex-shrink: 0;
    background: none;
    border: none;
    padding: 2px;
    margin: 0 0.125rem;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    color: var(--text-secondary);
    opacity: 0.25;
    transition: opacity 0.15s ease, color 0.15s ease;
}

.default-star:hover {
    opacity: 1;
    color: #f59e0b;
}

.blocktype-item:hover .default-star {
    opacity: 0.6;
}

.blocktype-item:hover .default-star:hover {
    opacity: 1;
}

/* Filled star - always visible */
.default-star.filled {
    opacity: 1;
    color: #f59e0b;
}

.default-star.filled:hover {
    opacity: 0.7;
}

.blocktype-item-name {
    flex: 1;
    font-family: var(--font-mono);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: pointer;
}

.blocktype-item-name:hover {
    text-decoration: underline;
    color: var(--accent-primary);
}

.blocktype-item-count {
    font-size: 0.65rem;
    color: var(--text-secondary);
    flex-shrink: 0;
}

/* Unavailable block types (not in any selected program) */
.blocktype-item.unavailable {
    opacity: 0.45;
    pointer-events: none;
    background: transparent;  /* Remove selected highlight when unavailable */
}

.blocktype-item.unavailable .blocktype-item-name {
    cursor: default;
}

.blocktype-item.unavailable .blocktype-item-name:hover {
    text-decoration: none;
    color: inherit;
}

/* Info text for "all cols" when no columns configured */
.all-cols-info {
    color: var(--text-secondary);
    font-size: 11px;
}

/* Pulse animation for returning from view editor */
@keyframes blocktype-pulse {
    0% {
        background-color: rgba(59, 130, 246, 0.4);
        box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.5);
    }
    50% {
        background-color: rgba(59, 130, 246, 0.2);
        box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.3);
    }
    100% {
        background-color: transparent;
        box-shadow: none;
    }
}

.blocktype-item.just-edited {
    animation: blocktype-pulse 0.8s ease-out;
}

/* Cross-highlighting: subtle indication of related items on hover */
.blocktype-item.cross-highlight {
    background: rgba(59, 130, 246, 0.12);
    box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.2);
}

.program-item.cross-highlight {
    background: rgba(59, 130, 246, 0.12);
    box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.2);
}

/* Dimmed highlight for unchecked programs */
.blocktype-item.cross-highlight-dim {
    background: rgba(59, 130, 246, 0.07);
}

.program-item.cross-highlight-dim {
    background: rgba(59, 130, 246, 0.07);
}

/* View Editor Mode - inline column configuration with data preview */
.view-editor {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.view-editor.hidden {
    display: none;
}

/* View Editor - matches function-blocks data-grid-panel layout */
.view-editor {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
    padding: 0.75rem;
    background: var(--bg-app);
}

.view-editor-grid-header {
    margin-bottom: 0.75rem;
}

.view-editor-grid-header .grid-title {
    gap: 0.75rem;
}

.view-editor-block-name {
    font-size: 1.1rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.view-editor-instance-count {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.view-editor-grid-container {
    flex: 1;
    min-height: 0;
}

.picker-stats {
    color: var(--text-secondary);
}


/* View Editor uses standard .column-picker styles */
.view-editor .column-picker {
    margin: 0 0 0.75rem 0;
    border-radius: 4px;
}

.view-editor .picker-content {
    display: block;
}

.view-editor .column-tag-input {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
}

/* Focus mode - dim sidebar when in view editor */
.export-layout.view-editor-active .export-sidebar {
    pointer-events: none;
}

.export-layout.view-editor-active .export-sidebar .program-item {
    opacity: 0.4;
}

.export-layout.view-editor-active .export-sidebar .program-item.has-block-type {
    opacity: 1;
    pointer-events: auto;
}

.export-layout.view-editor-active .export-sidebar .program-item.active-program {
    background: rgba(59, 130, 246, 0.15);
    border-left: 2px solid var(--accent-primary);
}

.export-layout.view-editor-active .export-block-header {
    display: none;
}

.export-layout.view-editor-active .export-sidebar-header .export-sidebar-actions {
    display: none;
}

/* Star icon for default view button */
.view-editor-header .star-icon {
    font-size: 1rem;
    line-height: 1;
}

.view-editor-header .star-icon.filled {
    color: #f59e0b;
}

/* Legacy: Three-Panel Configurator Layout (kept for compatibility) */
.configurator-layout {
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    gap: 1rem;
    height: calc(100vh - var(--header-height));
    padding: 1rem;
    overflow: hidden;
}

.configurator-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.configurator-panel .panel-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
    background-color: var(--bg-table-header);
}

.configurator-panel .panel-header h3 {
    margin: 0;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.03em;
}

.configurator-panel .panel-actions {
    display: flex;
    gap: 0.75rem;
}

.configurator-panel .panel-actions .btn-link {
    font-size: 0.75rem;
    color: var(--accent-primary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    text-decoration: none;
}

.configurator-panel .panel-actions .btn-link:hover {
    text-decoration: underline;
}

.configurator-panel .panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.configurator-panel .panel-footer {
    padding: 0.5rem 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-secondary);
    flex-shrink: 0;
    background-color: var(--bg-table-header);
}

/* Program List Items */
.program-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.2rem 0.375rem;
    border-radius: 3px;
    cursor: pointer;
    transition: background-color 0.1s;
}

.program-item:hover {
    background: var(--bg-hover);
}

.program-item input[type="checkbox"] {
    flex-shrink: 0;
    width: 13px;
    height: 13px;
    accent-color: var(--accent-primary);
}

.program-item-name {
    flex: 1;
    font-size: 0.75rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--font-mono);
}

/* Block Type Cards - Compact */
.blocktype-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    overflow: hidden;
    transition: border-color 0.15s;
}

.blocktype-card.selected {
    border-color: var(--accent-primary);
}

.blocktype-card-header {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.35rem 0.5rem;
    cursor: pointer;
    transition: background-color 0.1s;
}

.blocktype-card-header:hover {
    background: var(--bg-hover);
}

.blocktype-card-header input[type="checkbox"] {
    flex-shrink: 0;
    width: 13px;
    height: 13px;
    accent-color: var(--accent-primary);
}

.blocktype-name {
    flex: 1;
    font-weight: 500;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.blocktype-stats {
    font-size: 0.65rem;
    color: var(--text-secondary);
}

.blocktype-stats .text-warning {
    color: #f59e0b;
    margin-left: 0.25rem;
}

.blocktype-card-body {
    padding: 0.35rem 0.5rem;
    border-top: 1px solid var(--border-light);
    background: var(--bg-hover);
}

.blocktype-card-body .flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.blocktype-card-body .text-sm {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.blocktype-card-body .btn-link {
    font-size: 0.7rem;
    color: var(--accent-primary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    text-decoration: none;
}

.blocktype-card-body .btn-link:hover {
    text-decoration: underline;
}

/* Block Config Summary (Task 3) */
.block-config-summary {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.config-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.template-info {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.mapping-info {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.btn-configure {
    align-self: flex-start;
}

/* Template Dropdown */
.template-select {
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.35rem 0.5rem;
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: white;
}

/* Preview Panel */
.preview-summary {
    padding: 0.5rem;
}

.preview-stat {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-light);
}

.preview-stat:last-child {
    border-bottom: none;
}

.preview-stat span:first-child {
    color: var(--text-secondary);
}

.preview-stat span:last-child {
    font-weight: 600;
    font-family: var(--font-mono);
}

/* Old preview-warning style - kept for compatibility */
.preview-warning {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.5rem;
    background: #fef3c7;
    border-radius: 4px;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: #92400e;
}

.preview-warning-icon {
    color: #f59e0b;
    flex-shrink: 0;
}

/* New subtle warnings - collapsed by default */
.preview-warnings-details {
    margin-top: 0.75rem;
    font-size: 0.75rem;
}

.preview-warnings-summary {
    cursor: pointer;
    padding: 0.25rem 0;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.preview-warnings-summary::-webkit-details-marker {
    display: none;
}

.preview-warnings-summary::before {
    content: '▸';
    font-size: 0.625rem;
    color: var(--text-secondary);
    transition: transform 0.15s;
}

.preview-warnings-details[open] .preview-warnings-summary::before {
    transform: rotate(90deg);
}

.preview-warnings-content {
    padding: 0.5rem 0 0 1rem;
    border-left: 2px solid var(--border-light);
    margin-left: 0.25rem;
}

.preview-warning-item {
    display: flex;
    gap: 0.5rem;
    padding: 0.125rem 0;
    font-size: 0.6875rem;
}

/* Filter toggle */
.filter-toggle {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    cursor: pointer;
    font-size: 0.6875rem;
    color: var(--text-secondary);
}

.filter-toggle input {
    margin: 0;
}

.filter-toggle-label {
    white-space: nowrap;
}

/* Checkbox inline for forms */
.checkbox-inline {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
}

.checkbox-inline input {
    margin: 0;
}

.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.block { display: block; }

/* Block type panel - make it scrollable and take more space */
.blocktype-panel {
    min-width: 0;
}

.blocktype-panel .panel-content {
    padding: 0.75rem;
}

/* Configurator panel scrollbar */
.configurator-panel .panel-content::-webkit-scrollbar {
    width: 6px;
}

.configurator-panel .panel-content::-webkit-scrollbar-track {
    background: transparent;
}

.configurator-panel .panel-content::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.configurator-panel .panel-content::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* Preview Section within Export Settings Panel */
.preview-section {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.preview-section-title {
    margin: 0 0 0.75rem 0;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Override template panel styles when inside preview panel */
.preview-panel .template-panel {
    margin-bottom: 0;
    border: none;
    background: transparent;
    padding: 0;
}

.preview-panel .template-panel-title {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Override mapping panel styles when inside preview panel */
.preview-panel .mapping-panel {
    border: none;
    background: transparent;
    padding: 0;
    margin-top: 0;
}

.preview-panel .mapping-panel-title {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.preview-panel .mapping-panel-empty {
    padding: 0.5rem 0;
}

/* Adjust mapping rows container for smaller panel */
.preview-panel .mapping-rows-container {
    max-height: 200px;
}

/* Adjust mapping row for narrower panel */
.preview-panel .mapping-row {
    flex-wrap: wrap;
    gap: 0.25rem;
}

.preview-panel .mapping-template-col {
    flex: 0 0 100%;
}

.preview-panel .mapping-arrow {
    display: none;
}

.preview-panel .mapping-source-col {
    flex: 1;
}

.preview-panel .mapping-status {
    flex: 0 0 auto;
}

/* Compact template section styling */
.preview-panel .template-section {
    margin-bottom: 0.75rem;
}

.preview-panel .template-label {
    font-size: 0.75rem;
    margin-bottom: 0.375rem;
}

.preview-panel .template-select {
    font-size: 0.8rem;
    padding: 0.375rem 0.5rem;
}

.preview-panel .template-divider {
    margin: 0.75rem 0;
}

.preview-panel .template-upload-row {
    flex-wrap: wrap;
    gap: 0.375rem;
}

.preview-panel .template-file-input {
    font-size: 0.75rem;
    min-width: 0;
    flex: 1 1 100%;
}

.preview-panel .template-preview {
    padding: 0.75rem;
    margin-top: 0.75rem;
}

.preview-panel .template-column-list {
    max-height: 150px;
}

.preview-panel .template-columns-grid {
    max-height: 150px;
}

.preview-panel .template-save-row {
    flex-wrap: wrap;
    gap: 0.375rem;
}

.preview-panel .template-name-input {
    flex: 1 1 100%;
    margin-bottom: 0.375rem;
}

/* Mapping panel summary pills - smaller for compact view */
.preview-panel .mapping-panel-summary {
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.preview-panel .mapping-stat {
    font-size: 0.75rem;
    padding: 0.2rem 0.4rem;
}

/* Mapping panel header */
.preview-panel .mapping-panel-header {
    flex-wrap: wrap;
    gap: 0.5rem;
}

.preview-panel .mapping-save-btn {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    min-width: 60px;
}

/* Section separators and borders within preview panel */
.preview-panel #templatePanelContainer {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.preview-panel #mappingPanelContainer:not(:empty) {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

/* Template panel preview box styling */
.preview-panel .template-preview {
    background: var(--bg-hover);
    border: 1px solid var(--border-light);
}

/* Template columns display styling */
.preview-panel .template-columns-display {
    background: var(--bg-hover);
    padding: 0.75rem;
    border-radius: 4px;
    margin-top: 0.75rem;
}

/* ==================== Easter Eggs ==================== */

/* Animated Ladder Rung */
.ladder-rung {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: #64748b;
    padding: 0.5rem 0;
    position: relative;
    cursor: default;
    gap: 2px;
}

.rung-wire {
    width: 8px;
    height: 2px;
    background-color: #475569;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.rung-wire.left-rail,
.rung-wire.right-rail {
    width: 4px;
}

.contact, .coil {
    padding: 1px 3px;
    font-weight: 600;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.current-flow {
    position: absolute;
    left: 4px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: transparent;
    box-shadow: none;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
}

/* Hover state - power flows through the rung */
.ladder-rung:hover .rung-wire {
    background-color: #22c55e;
    box-shadow: 0 0 6px #22c55e;
}

.ladder-rung:hover .contact.xic,
.ladder-rung:hover .contact.xio {
    color: #22c55e;
    text-shadow: 0 0 8px #22c55e;
}

.ladder-rung:hover .coil.ote {
    color: #eab308;
    text-shadow: 0 0 12px #eab308, 0 0 20px #eab308;
    animation: coil-energize 0.8s ease-in-out infinite;
}

.ladder-rung:hover .current-flow {
    opacity: 1;
    background-color: #22c55e;
    box-shadow: 0 0 8px #22c55e, 0 0 12px #22c55e;
    animation: flow-current 0.6s linear infinite;
}

@keyframes coil-energize {
    0%, 100% { text-shadow: 0 0 8px #eab308, 0 0 16px #eab308; }
    50% { text-shadow: 0 0 16px #eab308, 0 0 24px #eab308, 0 0 32px #eab308; }
}

@keyframes flow-current {
    0% { left: 4px; opacity: 1; }
    100% { left: calc(100% - 10px); opacity: 0.3; }
}

/* Continuous animated ladder rung - pulse flows through periodically */
.ladder-rung--animated {
    overflow: hidden;
}

.ladder-rung--animated .current-flow {
    opacity: 1;
    background-color: #22c55e;
    box-shadow: 0 0 8px #22c55e, 0 0 12px #22c55e;
    animation: flow-current-continuous 4s ease-in-out infinite;
}

.ladder-rung--animated .rung-wire {
    animation: wire-pulse 4s ease-in-out infinite;
}

.ladder-rung--animated .contact.xic {
    animation: contact-pulse-xic 4s ease-in-out infinite;
}

.ladder-rung--animated .contact.xio {
    animation: contact-pulse-xio 4s ease-in-out infinite;
}

.ladder-rung--animated .coil.ote {
    animation: coil-pulse 4s ease-in-out infinite;
}

/* Version output - soft radial glow from center when pulse arrives */
.version-output {
    text-align: center;
    font-size: 0.7rem;
    color: #64748b;
    margin-top: 0.35rem;
    padding: 0.25rem 0.75rem;
    position: relative;
    animation: version-text 4s ease-in-out infinite;
}

.version-output::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    background: radial-gradient(ellipse at center,
        rgba(251, 191, 36, 0.12) 0%,
        rgba(251, 191, 36, 0.05) 30%,
        rgba(251, 191, 36, 0.01) 60%,
        transparent 80%
    );
    border-radius: 50%;
    pointer-events: none;
    animation: version-light 4s ease-in-out infinite;
}

@keyframes flow-current-continuous {
    0%, 10% { left: 4px; opacity: 0; }
    15% { opacity: 1; }
    55% { opacity: 0.8; }
    65%, 100% { left: calc(100% - 10px); opacity: 0; }
}

@keyframes wire-pulse {
    0%, 10% { background-color: #475569; box-shadow: none; }
    20%, 50% { background-color: #22c55e; box-shadow: 0 0 4px #22c55e; }
    60%, 100% { background-color: #475569; box-shadow: none; }
}

@keyframes contact-pulse-xic {
    0%, 8% { color: #64748b; text-shadow: none; }
    15%, 40% { color: #22c55e; text-shadow: 0 0 6px #22c55e; }
    50%, 100% { color: #64748b; text-shadow: none; }
}

@keyframes contact-pulse-xio {
    0%, 18% { color: #64748b; text-shadow: none; }
    25%, 45% { color: #22c55e; text-shadow: 0 0 6px #22c55e; }
    55%, 100% { color: #64748b; text-shadow: none; }
}

@keyframes coil-pulse {
    0%, 35% { color: #64748b; text-shadow: none; }
    45%, 60% { color: #fbbf24; text-shadow: 0 0 8px #fbbf24, 0 0 14px #f59e0b; }
    70%, 100% { color: #64748b; text-shadow: none; }
}

@keyframes version-text {
    0%, 55% {
        color: #64748b;
    }
    65%, 78% {
        color: #7a8599;
    }
    92%, 100% {
        color: #64748b;
    }
}

@keyframes version-light {
    0%, 55% {
        width: 0;
        height: 0;
        opacity: 0;
    }
    62% {
        width: 100%;
        height: 150%;
        opacity: 1;
    }
    78% {
        width: 110%;
        height: 180%;
        opacity: 0.6;
    }
    92%, 100% {
        width: 120%;
        height: 200%;
        opacity: 0;
    }
}

/* Attribution below ladder */
.ladder-attribution {
    font-size: 0.65rem;
    color: #475569;
    margin-top: 0.25rem;
    text-align: center;
    position: relative;
    animation: attribution-text 4s ease-in-out infinite;
}

@keyframes attribution-text {
    0%, 55% {
        color: #475569;
    }
    65%, 78% {
        color: #5a6577;
    }
    92%, 100% {
        color: #475569;
    }
}

.ladder-attribution::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    background: radial-gradient(ellipse at center,
        rgba(251, 191, 36, 0.12) 0%,
        rgba(251, 191, 36, 0.05) 30%,
        rgba(251, 191, 36, 0.01) 60%,
        transparent 80%
    );
    border-radius: 50%;
    pointer-events: none;
    animation: attribution-light 4s ease-in-out infinite;
}

@keyframes attribution-light {
    0%, 55% {
        width: 0;
        height: 0;
        opacity: 0;
    }
    62% {
        width: 100%;
        height: 150%;
        opacity: 1;
    }
    78% {
        width: 110%;
        height: 180%;
        opacity: 0.6;
    }
    92%, 100% {
        width: 120%;
        height: 200%;
        opacity: 0;
    }
}

.wisdom-link {
    text-decoration: none;
    opacity: 0.5;
    margin-left: 0.5rem;
    transition: opacity 0.2s ease;
    animation: wisdom-glow 4s ease-in-out infinite;
    position: relative;
}

.wisdom-link:hover {
    opacity: 1;
}

.wisdom-link::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.35rem 0.6rem;
    background: var(--bg-secondary, #192d32);
    color: #e2e8f0;
    font-size: 0.65rem;
    font-family: var(--font-mono);
    border: 1px solid var(--border-color, #334155);
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    margin-bottom: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.wisdom-link:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(-2px);
}

@keyframes wisdom-glow {
    0%, 55% {
        opacity: 0.5;
        filter: none;
    }
    65%, 78% {
        opacity: 1;
        filter: brightness(1.3);
    }
    92%, 100% {
        opacity: 0.5;
        filter: none;
    }
}

/* CRT Terminal Mode */
.crt-mode {
    filter: sepia(0.15) saturate(1.2);
}

.crt-mode * {
    font-family: 'Courier New', monospace !important;
}

.crt-mode .app-main {
    background-color: #0a1a0a !important;
}

.crt-mode .data-panel,
.crt-mode .modal-content,
.crt-mode .app-header {
    background-color: #0d1f0d !important;
    color: #33ff33 !important;
    border-color: #1a3a1a !important;
}

.crt-mode .tech-table th,
.crt-mode .tech-table td {
    background-color: #0a1a0a !important;
    color: #33ff33 !important;
    border-color: #1a3a1a !important;
}

.crt-mode a {
    color: #66ff66 !important;
}

.crt-mode .btn {
    background-color: #1a3a1a !important;
    color: #33ff33 !important;
    border-color: #33ff33 !important;
}

.crt-mode .btn:hover {
    background-color: #2a4a2a !important;
}

.crt-mode::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.15),
        rgba(0, 0, 0, 0.15) 1px,
        transparent 1px,
        transparent 2px
    );
    z-index: 9999;
}

.crt-indicator {
    position: fixed;
    top: 10px;
    right: 10px;
    background-color: #1a3a1a;
    color: #33ff33;
    padding: 4px 8px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    border: 1px solid #33ff33;
    z-index: 10000;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Magic Smoke Effect */
.smoke-container {
    position: fixed;
    pointer-events: none;
    z-index: 10000;
}

.smoke-particle {
    position: absolute;
    width: 8px;
    height: 8px;
    background: radial-gradient(circle, rgba(128, 128, 128, 0.8), transparent);
    border-radius: 50%;
    animation: smoke-rise 1.5s ease-out forwards;
}

@keyframes smoke-rise {
    0% {
        opacity: 0.8;
        transform: translateY(0) translateX(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(-80px) translateX(var(--drift, 0)) scale(2.5);
    }
}

/* ============================================
   Export Configurator - Compact Mode
   ============================================ */

.export-configurator-compact {
    --ec-row-height: 26px;
    --ec-font-size-sm: 13px;
    --ec-padding-sm: 4px 8px;
}

.export-configurator-compact .blocktype-card {
    padding: 0;
    margin-bottom: 6px;
}

.export-configurator-compact .blocktype-card-header {
    padding: 8px 12px;
    font-size: var(--ec-font-size-sm);
}

.export-configurator-compact .blocktype-card-body {
    padding: 8px 12px;
}

.export-configurator-compact .column-list {
    gap: 4px;
}

.export-configurator-compact .column-chip {
    padding: 2px 8px;
    font-size: 12px;
}

/* Apply Defaults banner */
.apply-defaults-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 12px;
}

.apply-defaults-banner .banner-text {
    font-size: 13px;
    color: var(--text-secondary);
}

.apply-defaults-banner .banner-text strong {
    color: var(--text-primary);
}

/* Default applied indicator - green left border */
.blocktype-card.has-default {
    border-left: 3px solid #10b981;
}

/* Default badge styling */
.blocktype-card .default-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: #10b981;
    margin-left: 8px;
}

.default-badge .star {
    color: #f59e0b;
}

/* Click-to-toggle in export preview table */
.export-preview-table th {
    cursor: pointer;
    user-select: none;
}

.export-preview-table th:hover {
    background: var(--bg-secondary, var(--bg-hover));
}

.export-preview-table th.column-dimmed,
.export-preview-table td.column-dimmed {
    opacity: 0.4;
    background-color: #f5f5f5;
}


/* Landry Industrial product family */
.landry-product-note{padding:16px 20px;margin-bottom:16px;border-left:4px solid #17675f;background:#eef6f1;color:#192d32;font-size:13px}.landry-product-note strong{font-size:18px}.landry-product-note a{color:#17675f}.landry-product-note p{margin:6px 0}.sidebar-brand-lens{color:#b5efcc}

.review-banner{padding:10px 18px;background:#e7f1ec;color:#192d32;border-bottom:1px solid #bbd6c5;font-size:12px}.data-grid-panel{min-width:0}.grid-title{flex-wrap:wrap;gap:12px}#instanceSearch{width:220px}.sidebar-footer a{color:inherit}.grid-controls{flex-wrap:wrap}.review-banner a{color:#17675f}.sidebar-brand-lens{color:#b5efcc}@media(max-width:800px){.app-sidebar{display:none}.app-main{margin-left:0;width:100%}.browser-layout{grid-template-columns:170px minmax(0,1fr)}.grid-header{flex-wrap:wrap;gap:10px}.grid-title{flex-wrap:wrap}.app-header{height:auto;min-height:50px;flex-wrap:wrap;padding:10px}.header-actions{flex-wrap:wrap}.data-grid-panel{overflow:hidden}#instanceSearch{width:180px}}