/* ═══════════════════════════════════════════════════════
   PhyloVerse v2.0 — Modern Split-Pane Interface
   Inspired by iTOL with enhanced UX
   ═══════════════════════════════════════════════════════ */

:root {
    /* Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-sidebar: #ffffff;
    --bg-hover: rgba(59, 130, 246, 0.06);
    --bg-active: rgba(59, 130, 246, 0.12);

    --accent-primary: #3b82f6;
    --accent-secondary: #8b5cf6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;

    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --border-focus: #3b82f6;

    /* Layout */
    --header-height: 48px;
    --sidebar-width: 280px;
    --sidebar-collapsed: 0px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;

    /* Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 100ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-sidebar: #1e293b;
    --bg-hover: rgba(96, 165, 250, 0.1);
    --bg-active: rgba(96, 165, 250, 0.2);

    --accent-primary: #60a5fa;
    --accent-secondary: #a78bfa;

    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --text-muted: #64748b;

    --border-color: #334155;
    --border-light: #1e293b;
    --border-focus: #60a5fa;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow: hidden;
    height: 100vh;
}

/* ═══════════════════ HEADER ═══════════════════ */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    padding: 0 var(--space-3);
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
}

.header-left, .header-center, .header-right {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.header-center {
    flex: 1;
    justify-content: center;
}

.sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.sidebar-toggle svg {
    width: 18px;
    height: 18px;
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.brand-logo {
    width: 28px;
    height: 28px;
}

.brand-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.brand-version {
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--accent-primary);
    background: var(--bg-hover);
    padding: 2px 6px;
    border-radius: 10px;
}

/* Status Bar */
.status-bar {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.status-item {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.status-item svg {
    width: 14px;
    height: 14px;
}

/* Header Buttons */
.header-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.header-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.header-btn svg {
    width: 18px;
    height: 18px;
}

.header-divider {
    width: 1px;
    height: 20px;
    background: var(--border-color);
    margin: 0 var(--space-1);
}

/* Theme Toggle Icons */
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: block !important; }

/* ═══════════════════ APP CONTAINER ═══════════════════ */
.app-container {
    display: flex;
    height: calc(100vh - var(--header-height));
    overflow: hidden;
}

/* ═══════════════════ SIDEBARS ═══════════════════ */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-color: var(--border-color);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-slow), transform var(--transition-slow);
    overflow: hidden;
}

.sidebar-left {
    border-right: 1px solid var(--border-color);
}

.sidebar-right {
    border-left: 1px solid var(--border-color);
}

.sidebar.collapsed {
    width: 0;
    border-width: 0;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-3);
}

/* Scrollbar */
.sidebar-content::-webkit-scrollbar {
    width: 4px;
}

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

/* ═══════════════════ SIDEBAR SECTIONS ═══════════════════ */
.sidebar-section {
    margin-bottom: var(--space-2);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-3);
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

.section-header svg {
    width: 16px;
    height: 16px;
    color: var(--text-tertiary);
}

.section-header .chevron {
    margin-left: auto;
    transition: transform var(--transition-base);
}

.section-body {
    display: none;
    padding: 0 var(--space-3) var(--space-3);
}

.section-body.expanded {
    display: block;
}

.section-header[aria-expanded="false"] .chevron {
    transform: rotate(-90deg);
}

/* ═══════════════════ UPLOAD ZONE ═══════════════════ */
.upload-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--accent-primary);
    background: var(--bg-hover);
}

.upload-icon {
    width: 40px;
    height: 40px;
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}

.upload-icon svg {
    width: 100%;
    height: 100%;
}

.upload-text {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-1);
}

.upload-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.upload-actions {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

/* ═══════════════════ SAMPLE DATA GRID ═══════════════════ */
.sample-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
}

.sample-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-3);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sample-card:hover {
    border-color: var(--accent-primary);
    background: var(--bg-hover);
}

.sample-icon {
    font-size: 1.5rem;
    margin-bottom: var(--space-1);
}

.sample-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sample-desc {
    font-size: 0.625rem;
    color: var(--text-muted);
}

/* ═══════════════════ SEARCH ═══════════════════ */
.search-box {
    display: flex;
    gap: var(--space-2);
}

.input-search {
    flex: 1;
    padding: var(--space-2) var(--space-3);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

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

.btn-search {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--accent-primary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-inverse);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.btn-search:hover {
    background: #2563eb;
}

.btn-search svg {
    width: 16px;
    height: 16px;
}

.db-toggles {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.db-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.db-toggle input {
    accent-color: var(--accent-primary);
}

.search-options {
    margin-top: var(--space-2);
}

/* ═══════════════════ DATA SUMMARY ═══════════════════ */
.data-summary, .data-actions {
    padding: var(--space-2);
}

.data-empty {
    text-align: center;
    padding: var(--space-4);
}

.data-empty p {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Sample Taxa Suggestions */
.sample-taxa {
    margin-top: var(--space-2);
    padding: var(--space-2);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.hint-label {
    font-size: 0.6875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sample-taxa-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
}

.sample-taxon {
    padding: 0.25rem 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-style: italic;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sample-taxon:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

/* Search Results */
.search-results {
    margin-top: var(--space-2);
    max-height: 200px;
    overflow-y: auto;
}

.search-result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2);
    border-bottom: 1px solid var(--border-light);
    font-size: 0.8125rem;
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-name {
    font-style: italic;
    color: var(--text-primary);
}

.search-result-locality {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.search-result-source {
    font-size: 0.6875rem;
    padding: 0.125rem 0.375rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
}

.search-result-header {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-success);
    padding: var(--space-1) var(--space-2);
    background: rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-1);
}

.search-result-more {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    padding: var(--space-2);
    font-style: italic;
}

/* ═══════════════════ MAIN CONTENT ═══════════════════ */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-tertiary);
    overflow: hidden;
}

/* View Tabs */
.view-tabs {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
}

.view-tab {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.view-tab.active {
    background: var(--accent-primary);
    color: var(--text-inverse);
}

.view-tab svg {
    width: 16px;
    height: 16px;
}

/* Visualization Container */
.viz-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.viz-panel {
    position: absolute;
    inset: 0;
    display: none;
    flex-direction: column;
}

.viz-panel.active {
    display: flex;
}

/* Visualization Toolbar */
.viz-toolbar {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 var(--space-2);
}

.toolbar-spacer {
    flex: 1;
}

.tool-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tool-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

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

.tool-btn svg {
    width: 16px;
    height: 16px;
}

.tool-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.tool-toggle:hover {
    background: var(--bg-hover);
}

.tool-toggle input {
    accent-color: var(--accent-primary);
}

.toolbar-select {
    padding: var(--space-1) var(--space-2);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    color: var(--text-primary);
}

.time-slider {
    gap: var(--space-2);
}

.time-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.time-value {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-primary);
    min-width: 60px;
}

/* Visualization Canvas */
.viz-canvas {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg-primary);
}

.viz-canvas canvas,
.viz-canvas #leafletMap {
    width: 100%;
    height: 100%;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--text-muted);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.empty-state p {
    font-size: 0.875rem;
}

/* ═══════════════════ RIGHT SIDEBAR: CONTROL TABS ═══════════════════ */
.control-tabs {
    display: flex;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.control-tab {
    flex: 1 1 auto;
    min-width: 60px;
    padding: var(--space-2) var(--space-2);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-tertiary);
    font-size: 0.6875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-align: center;
}

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

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

/* Control Panels */
.control-panel {
    display: none;
    overflow-y: auto;
    max-height: calc(100vh - var(--header-height) - 50px);
}

.control-panel.active {
    display: block;
}

/* Control Sections */
.control-section {
    margin-bottom: var(--space-4);
}

.control-title {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-3);
}

.control-group {
    margin-bottom: var(--space-3);
}

.control-group.inline {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.control-label {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-1);
}

.control-group.inline .control-label {
    margin-bottom: 0;
    white-space: nowrap;
}

/* Control Inputs */
.control-select,
.control-input {
    width: 100%;
    padding: var(--space-2);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

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

.control-group.inline .control-input {
    width: 80px;
}

.control-range {
    width: 100%;
    accent-color: var(--accent-primary);
}

.range-value {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-left: var(--space-2);
}

.control-checkbox {
    accent-color: var(--accent-primary);
}

.control-color {
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
}

/* Button Groups */
.btn-group {
    display: flex;
    gap: 1px;
    background: var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.btn-toggle {
    flex: 1;
    padding: var(--space-2);
    background: var(--bg-primary);
    border: none;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-toggle.active {
    background: var(--accent-primary);
    color: var(--text-inverse);
}

/* Collapsible Sections */
.control-section.collapsible .section-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-2);
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.control-section.collapsible .section-toggle:hover {
    background: var(--bg-hover);
}

.control-section.collapsible .chevron {
    width: 16px;
    height: 16px;
    color: var(--text-tertiary);
    transition: transform var(--transition-base);
}

.control-section.collapsible.collapsed .chevron {
    transform: rotate(-90deg);
}

.control-section.collapsible .section-content {
    padding: var(--space-3) 0;
}

.control-section.collapsible.collapsed .section-content {
    display: none;
}

/* Analysis Cards */
.analysis-card {
    padding: var(--space-3);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
}

.analysis-card:last-child {
    margin-bottom: 0;
}

.analysis-card h5 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.card-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--space-3);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-2);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    text-align: center;
}

.stat-label {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-primary);
}

/* Progress Bar */
.progress-bar {
    margin-top: var(--space-2);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 6px;
    background: var(--accent-primary);
    width: 0%;
    transition: width var(--transition-base);
}

.progress-text {
    position: absolute;
    right: var(--space-2);
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* ═══════════════════ EXPORT TAB ═══════════════════ */
.export-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-2);
}

.export-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-3);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.export-btn svg {
    width: 24px;
    height: 24px;
    color: var(--text-tertiary);
    margin-bottom: var(--space-1);
}

.export-btn span {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.export-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.export-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.export-item:hover {
    border-color: var(--accent-primary);
    background: var(--bg-hover);
}

.export-icon svg {
    width: 20px;
    height: 20px;
    color: var(--text-tertiary);
}

.export-info {
    display: flex;
    flex-direction: column;
}

.export-name {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.export-desc {
    font-size: 0.6875rem;
    color: var(--text-muted);
}

/* Share Link */
.share-link {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.share-link input {
    flex: 1;
    padding: var(--space-2);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    color: var(--text-primary);
}

.btn-copy {
    padding: var(--space-2) var(--space-3);
    background: var(--accent-primary);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-inverse);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.btn-copy:hover {
    background: #2563eb;
}

/* ═══════════════════ BUTTONS ═══════════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.btn svg {
    width: 16px;
    height: 16px;
}

.btn-primary {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--text-inverse);
}

.btn-primary:hover {
    background: #2563eb;
    border-color: #2563eb;
    color: var(--text-inverse);
}

.btn-secondary {
    background: var(--bg-secondary);
}

.btn-ghost {
    background: transparent;
    border-color: transparent;
}

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

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: 0.75rem;
}

.btn-xs {
    padding: var(--space-1) var(--space-2);
    font-size: 0.6875rem;
}

.btn-block {
    width: 100%;
}

.btn-row {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

/* ═══════════════════ MODALS ═══════════════════ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.15s ease;
}

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

.modal {
    width: 90%;
    max-width: 500px;
    max-height: 85vh;
    background: var(--bg-sidebar);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: slideUp 0.2s ease;
}

.modal-lg {
    max-width: 800px;
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-tertiary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.modal-body {
    padding: var(--space-4);
    overflow-y: auto;
    max-height: calc(85vh - 60px);
}

/* Help Modal */
.help-tabs {
    display: flex;
    gap: var(--space-1);
    margin-bottom: var(--space-4);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--space-2);
}

.help-tab {
    padding: var(--space-2) var(--space-3);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.help-tab.active {
    background: var(--accent-primary);
    color: var(--text-inverse);
}

.help-panel {
    display: none;
}

.help-panel.active {
    display: block;
}

.help-panel h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.help-steps {
    padding-left: var(--space-5);
}

.help-steps li {
    margin-bottom: var(--space-3);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.help-steps strong {
    color: var(--text-primary);
}

.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
}

.shortcut {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.shortcut kbd {
    padding: 2px 6px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
}

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

.formats-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.format-item {
    padding: var(--space-3);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.format-item strong {
    display: block;
    font-size: 0.875rem;
    color: var(--accent-primary);
    margin-bottom: var(--space-1);
}

.format-item p {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.about-links {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-4);
}

/* Matrix Editor */
.matrix-toolbar {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.matrix-container {
    overflow: auto;
    max-height: 400px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.matrix-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
}

.matrix-table th,
.matrix-table td {
    padding: var(--space-2);
    border: 1px solid var(--border-color);
    text-align: center;
}

.matrix-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    position: sticky;
    top: 0;
}

.matrix-table th:first-child {
    position: sticky;
    left: 0;
    z-index: 1;
}

.matrix-table td:first-child {
    position: sticky;
    left: 0;
    background: var(--bg-primary);
    font-weight: 500;
    text-align: left;
}

/* ═══════════════════ TOAST NOTIFICATIONS ═══════════════════ */
.toast-container {
    position: fixed;
    bottom: var(--space-4);
    right: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    z-index: 2000;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.2s ease;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast.success { border-left: 3px solid var(--accent-success); }
.toast.error { border-left: 3px solid var(--accent-danger); }
.toast.warning { border-left: 3px solid var(--accent-warning); }

/* ═══════════════════ RESPONSIVE ═══════════════════ */
@media (max-width: 1200px) {
    :root {
        --sidebar-width: 260px;
    }
}

@media (max-width: 960px) {
    :root {
        --sidebar-width: 240px;
    }

    .status-bar {
        display: none;
    }

    .brand-name {
        display: none;
    }
}

@media (max-width: 768px) {
    .sidebar {
        position: absolute;
        top: var(--header-height);
        height: calc(100vh - var(--header-height));
        z-index: 50;
        width: var(--sidebar-width);
    }

    .sidebar-left {
        left: 0;
        transform: translateX(-100%);
    }

    .sidebar-right {
        right: 0;
        transform: translateX(100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .view-tab span {
        display: none;
    }

    .export-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .shortcuts-grid {
        grid-template-columns: 1fr;
    }

    .app-footer {
        display: none;
    }
}

/* ═══════════════════ FOOTER ═══════════════════ */
.app-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 32px;
    background: var(--bg-sidebar);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
}

.footer-content {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-content a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-content a:hover {
    color: var(--accent-primary);
}

.footer-brand {
    font-weight: 600;
    color: var(--text-secondary);
}

.footer-divider {
    color: var(--border-color);
}

/* Adjust main content height for footer */
.app-container {
    height: calc(100vh - var(--header-height) - 32px);
}

/* ═══════════════════ AUDIT RESULTS ═══════════════════ */
.audit-result {
    display: flex;
    justify-content: space-between;
    padding: var(--space-2);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
    font-size: 0.8125rem;
}

.audit-result:last-child {
    margin-bottom: 0;
}

.audit-label {
    color: var(--text-secondary);
}

.audit-value {
    font-weight: 600;
    color: var(--text-primary);
}

.audit-result.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-success);
    justify-content: center;
}

.audit-result.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-danger);
}

/* ═══════════════════ DATA ITEMS ═══════════════════ */
.data-item {
    padding: var(--space-2);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

/* ═══════════════════ MAP CONTAINER ═══════════════════ */
#leafletMap {
    width: 100%;
    height: 100%;
    min-height: 400px;
}

#panelMap.active #leafletMap {
    height: 100%;
}

/* ═══════════════════ HISTORY PANEL ═══════════════════ */
.history-actions {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.history-actions .btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
}

.history-actions .btn svg {
    width: 16px;
    height: 16px;
}

.history-info {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.history-list {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
}

.history-list::-webkit-scrollbar {
    width: 4px;
}

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

.history-empty {
    padding: var(--space-4);
    text-align: center;
    color: var(--text-muted);
}

.history-empty .hint {
    font-size: 0.75rem;
    margin-top: var(--space-1);
}

.history-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

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

.history-item.active {
    background: rgba(59, 130, 246, 0.1);
    border-left: 3px solid var(--accent-primary);
}

.history-item.future {
    opacity: 0.5;
}

.history-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.history-icon svg {
    width: 14px;
    height: 14px;
}

.history-icon.load { background: rgba(59, 130, 246, 0.15); color: #3b82f6; }
.history-icon.style { background: rgba(139, 92, 246, 0.15); color: #8b5cf6; }
.history-icon.analysis { background: rgba(16, 185, 129, 0.15); color: #10b981; }
.history-icon.setting { background: rgba(245, 158, 11, 0.15); color: #f59e0b; }

.history-content {
    flex: 1;
    min-width: 0;
}

.history-action {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-time {
    font-size: 0.6875rem;
    color: var(--text-muted);
}

.history-restore {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    opacity: 0;
    transition: all var(--transition-fast);
}

.history-item:hover .history-restore {
    opacity: 1;
}

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

.history-restore svg {
    width: 14px;
    height: 14px;
}

.history-footer {
    margin-top: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px solid var(--border-color);
}

/* ═══════════════════ RESULTS PANEL ═══════════════════ */
.results-panel {
    max-height: 250px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
}

.results-panel::-webkit-scrollbar {
    width: 4px;
}

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

.results-empty {
    padding: var(--space-4);
    text-align: center;
    color: var(--text-muted);
}

.results-empty .hint {
    font-size: 0.75rem;
    margin-top: var(--space-1);
}

.result-card {
    padding: var(--space-3);
    border-bottom: 1px solid var(--border-color);
}

.result-card:last-child {
    border-bottom: none;
}

.result-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2);
}

.result-card-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.result-card-time {
    font-size: 0.6875rem;
    color: var(--text-muted);
}

.result-card-body {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.result-item {
    display: flex;
    justify-content: space-between;
    padding: var(--space-2);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
}

.result-item .label {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.result-item .value {
    font-weight: 600;
    color: var(--text-primary);
}

.result-table {
    width: 100%;
    font-size: 0.75rem;
    margin-top: var(--space-2);
    border-collapse: collapse;
}

.result-table th,
.result-table td {
    padding: var(--space-1) var(--space-2);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.result-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-secondary);
}

.results-actions {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px solid var(--border-color);
}

/* ═══════════════════ ANALYSIS RESULT INLINE ═══════════════════ */
.analysis-result {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    margin-top: var(--space-2);
}

.analysis-result h5 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.analysis-result .result-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: var(--space-2);
}

/* ═══════════════════ SAMPLE SEARCH ═══════════════════ */
.sample-searches {
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border-color);
}

.sample-search-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: 100%;
    margin-bottom: var(--space-1);
    text-align: left;
    font-size: 0.75rem;
}

.db-badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    background: var(--accent-primary);
    color: white;
}

.db-badge[data-db="gbif"],
.sample-search-btn[data-db="gbif"] .db-badge {
    background: #4CAF50;
}

.db-badge[data-db="inaturalist"],
.sample-search-btn[data-db="inaturalist"] .db-badge {
    background: #74ac00;
}

.db-badge[data-db="ebird"],
.sample-search-btn[data-db="ebird"] .db-badge {
    background: #0066CC;
}

.db-badge[data-db="bold"],
.sample-search-btn[data-db="bold"] .db-badge {
    background: #9C27B0;
}

/* ═══════════════════ RESPONSIVE ADJUSTMENTS ═══════════════════ */
@media (max-width: 1400px) {
    :root {
        --sidebar-width: 280px;
    }
}

@media (max-width: 1200px) {
    :root {
        --sidebar-width: 260px;
    }

    .control-tab {
        padding: var(--space-2) var(--space-1);
        font-size: 0.625rem;
        min-width: 50px;
    }
}

@media (max-width: 900px) {
    :root {
        --sidebar-width: 240px;
    }

    .control-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
    }

    .control-tab {
        flex: 0 0 auto;
    }
}

/* Right sidebar specific adjustments */
.sidebar-right .sidebar-content {
    padding: var(--space-2);
}

.sidebar-right .control-section {
    margin-bottom: var(--space-3);
}

/* ═══════════════════ INLINE RESULTS ═══════════════════ */
.inline-result {
    margin-top: var(--space-2);
    padding: var(--space-2);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent-primary);
    font-size: 0.75rem;
    display: none;
}

.inline-result.show {
    display: block;
    animation: slideIn 0.2s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.inline-result .result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-2);
    padding-bottom: var(--space-1);
    border-bottom: 1px solid var(--border-color);
}

.inline-result .result-title {
    font-weight: 600;
    color: var(--text-primary);
}

.inline-result .result-time {
    font-size: 0.625rem;
    color: var(--text-muted);
}

.inline-result .result-close {
    width: 18px;
    height: 18px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.inline-result .result-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.inline-result .result-row {
    display: flex;
    justify-content: space-between;
    padding: var(--space-1) 0;
}

.inline-result .result-label {
    color: var(--text-muted);
}

.inline-result .result-value {
    font-weight: 600;
    color: var(--text-primary);
}

.inline-result .result-value.success {
    color: var(--accent-success);
}

.inline-result .result-value.warning {
    color: var(--accent-warning);
}

.inline-result .result-value.error {
    color: var(--accent-danger);
}

.inline-result .mini-table {
    width: 100%;
    margin-top: var(--space-2);
    border-collapse: collapse;
}

.inline-result .mini-table th,
.inline-result .mini-table td {
    padding: var(--space-1);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.6875rem;
}

.inline-result .mini-table th {
    font-weight: 600;
    color: var(--text-secondary);
}

/* ═══════════════════ RESIZABLE PANELS ═══════════════════ */
.sidebar-resizer {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 8px;
    cursor: col-resize;
    background: transparent;
    transition: background var(--transition-fast);
    z-index: 100;
}

.sidebar-resizer::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 4px;
    height: 40px;
    background: var(--border-color);
    border-radius: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.sidebar-resizer:hover::after,
.sidebar-resizer.active::after {
    opacity: 1;
    background: var(--accent-primary);
}

.sidebar-resizer:hover,
.sidebar-resizer.active {
    background: rgba(59, 130, 246, 0.1);
}

.sidebar-left .sidebar-resizer {
    right: -4px;
}

.sidebar-right .sidebar-resizer {
    left: -4px;
}

.sidebar {
    position: relative;
    min-width: 200px;
    max-width: 500px;
}

/* Resizing state body */
body.resizing {
    cursor: col-resize !important;
    user-select: none !important;
}

/* ═══════════════════ SPLIT VIEW ═══════════════════ */
.split-container {
    display: flex;
    width: 100%;
    height: 100%;
    position: relative;
}

.split-pane {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.split-left {
    flex: 1;
    min-width: 200px;
}

.split-right {
    flex: 1;
    min-width: 200px;
}

.split-header {
    padding: var(--space-2) var(--space-3);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.split-canvas {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg-canvas);
}

.split-canvas #splitLeafletMap {
    width: 100%;
    height: 100%;
}

.split-resizer {
    width: 8px;
    background: var(--bg-tertiary);
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    cursor: col-resize;
    position: relative;
    flex-shrink: 0;
    z-index: 10;
    transition: background var(--transition-fast);
}

.split-resizer::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 4px;
    height: 40px;
    background: var(--border-color);
    border-radius: 2px;
}

.split-resizer:hover,
.split-resizer.active {
    background: rgba(59, 130, 246, 0.15);
}

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

/* Expanded collapsible sections */
.control-section.collapsible.expanded .section-toggle .chevron {
    transform: rotate(180deg);
}

.control-section.collapsible .section-content {
    display: none;
}

.control-section.collapsible .section-content.show {
    display: block;
}

/* Calibration list */
.calibration-list {
    max-height: 120px;
    overflow-y: auto;
    padding: var(--space-2);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
}

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

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

.calibration-remove {
    width: 16px;
    height: 16px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
}