/* ═══════════════════════════════════════════════════════
   PhyloVerse — Design System & Premium Theme
   With Dark/Light Theme Support
   ═══════════════════════════════════════════════════════ */

:root {
    /* ── Color Palette (Dark Theme - Default) ── */
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-tertiary: #1a2035;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-glass: rgba(17, 24, 39, 0.55);
    --bg-hover: rgba(59, 130, 246, 0.08);

    --accent-blue: #3b82f6;
    --accent-cyan: #00d4ff;
    --accent-purple: #7c3aed;
    --accent-green: #10b981;
    --accent-amber: #f59e0b;
    --accent-red: #ef4444;
    --accent-pink: #ec4899;

    --gradient-primary: linear-gradient(135deg, #00d4ff, #7c3aed);
    --gradient-warm: linear-gradient(135deg, #f59e0b, #ef4444);
    --gradient-cool: linear-gradient(135deg, #10b981, #3b82f6);
    --gradient-glow: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(124, 58, 237, 0.15));

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --text-accent: #00d4ff;

    --border-color: rgba(148, 163, 184, 0.1);
    --border-glow: rgba(0, 212, 255, 0.3);

    /* ── Typography ── */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* ── Spacing ── */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* ── Shadows ── */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.15);
    --shadow-glow-purple: 0 0 30px rgba(124, 58, 237, 0.15);

    /* ── Transitions ── */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    /* ── Tree Customization (Default) ── */
    --tree-branch-color: rgba(148, 163, 184, 0.3);
    --tree-branch-width: 1.5;
    --tree-node-color: var(--accent-cyan);
    --tree-node-size: 4;
    --tree-label-color: var(--text-secondary);
    --tree-label-size: 11px;
    --tree-support-color: var(--accent-green);
}

/* ═══════════════ LIGHT THEME ═══════════════ */
[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-glass: rgba(255, 255, 255, 0.75);
    --bg-hover: rgba(59, 130, 246, 0.08);

    --accent-cyan: #0891b2;
    --accent-purple: #7c3aed;
    --accent-blue: #2563eb;
    --accent-green: #059669;
    --accent-amber: #d97706;
    --accent-red: #dc2626;

    --gradient-primary: linear-gradient(135deg, #0891b2, #7c3aed);
    --gradient-glow: linear-gradient(135deg, rgba(8, 145, 178, 0.1), rgba(124, 58, 237, 0.1));

    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --text-accent: #0891b2;

    --border-color: rgba(148, 163, 184, 0.2);
    --border-glow: rgba(8, 145, 178, 0.3);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 30px rgba(8, 145, 178, 0.1);

    --tree-branch-color: rgba(71, 85, 105, 0.4);
    --tree-label-color: var(--text-secondary);
}

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

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

::selection {
    background: rgba(0, 212, 255, 0.3);
    color: #fff;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--text-tertiary);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ═══════════════ TOP NAV BAR ═══════════════ */
.top-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1.25rem;
    height: 56px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    flex-shrink: 0;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
}

.brand-icon {
    width: 28px;
    height: 28px;
    animation: brandPulse 3s ease-in-out infinite;
}

@keyframes brandPulse {

    0%,
    100% {
        filter: drop-shadow(0 0 4px rgba(0, 212, 255, 0.4));
    }

    50% {
        filter: drop-shadow(0 0 12px rgba(0, 212, 255, 0.7));
    }
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.brand-tag {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.1);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 212, 255, 0.2);
}

/* Nav Tabs */
.nav-tabs {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    justify-content: center;
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    white-space: nowrap;
}

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

.nav-tab.active {
    color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.1);
}

.nav-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 20%;
    right: 20%;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
}

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

.tab-badge {
    font-size: 0.65rem;
    font-weight: 700;
    color: #fff;
    background: var(--accent-red);
    padding: 1px 5px;
    border-radius: 10px;
    min-width: 16px;
    text-align: center;
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.nav-btn:hover {
    border-color: var(--border-glow);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.nav-btn.accent {
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.3);
    color: var(--accent-cyan);
}

.nav-btn.accent:hover {
    background: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-glow);
}

/* ═══════════════ NAVIGATION DROPDOWN ═══════════════ */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 200px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    z-index: 1000;
    animation: slideDown 0.2s ease;
}

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

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    width: 100%;
    text-align: left;
}

.dropdown-item:hover {
    background: rgba(0, 212, 255, 0.1);
    color: var(--text-primary);
}

.dropdown-item span:first-child {
    font-size: 1.1rem;
}

.btn-text {
    display: inline;
}

@media (max-width: 768px) {
    .btn-text {
        display: none;
    }
    .nav-tab .tab-label {
        display: none;
    }
}

/* ═══════════════ AUTHENTICATION STYLES ═══════════════ */
.nav-btn-primary {
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
}

.nav-btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.user-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 0.25rem;
}

.user-name {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dropdown-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: rgba(0, 212, 255, 0.05);
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
}

.user-avatar-large {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-cyan);
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-display-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-email {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ═══════════════ PROJECTS PANEL STYLES ═══════════════ */
.projects-container {
    padding: 2rem;
}

.projects-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    gap: 1rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.projects-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    gap: 1rem;
}

.empty-icon {
    font-size: 4rem;
    opacity: 0.3;
}

.projects-empty h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin: 0;
}

.projects-empty p {
    color: var(--text-secondary);
    max-width: 400px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.project-card:hover::before {
    opacity: 1;
}

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.project-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
}

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

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

.project-action-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.6rem;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.project-action-btn:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.project-action-btn.danger:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--accent-red);
    color: var(--accent-red);
}

.project-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.project-stat {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* ═══════════════ WORKFLOW PROGRESS ═══════════════ */
.workflow-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.workflow-step {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.8rem;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-base);
}

.workflow-step .step-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    font-size: 0.65rem;
    font-weight: 600;
}

.workflow-step.completed .step-icon {
    background: var(--accent-green);
    border-color: var(--accent-green);
    color: white;
}

.workflow-step.completed .step-icon::before {
    content: '\2713';
}

.workflow-step.completed .step-icon {
    font-size: 0;
}

.workflow-step.completed .step-icon::before {
    font-size: 0.7rem;
}

.workflow-step.active {
    color: var(--accent-cyan);
}

.workflow-step.active .step-icon {
    background: rgba(0, 212, 255, 0.2);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.3);
}

.workflow-connector {
    width: 30px;
    height: 2px;
    background: var(--border-color);
}

.workflow-connector.completed {
    background: var(--accent-green);
}

.step-label {
    display: none;
}

@media (min-width: 768px) {
    .step-label {
        display: inline;
    }
}

/* ═══════════════ MAIN CONTENT ═══════════════ */
main {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.panel {
    display: none;
    position: absolute;
    inset: 0;
    overflow: auto;
    padding: 1.5rem;
    animation: fadeIn 0.3s ease;
}

.panel.active {
    display: flex;
    flex-direction: column;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ═══════════════ UPLOAD PANEL ═══════════════ */
.upload-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    gap: 2rem;
}

.upload-zone {
    width: 100%;
    max-width: 700px;
    border: 2px dashed rgba(0, 212, 255, 0.25);
    border-radius: var(--radius-xl);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.upload-zone::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-glow);
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.upload-zone.drag-over {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow), inset 0 0 60px rgba(0, 212, 255, 0.05);
    transform: scale(1.01);
}

.upload-zone.drag-over::before {
    opacity: 1;
}

.upload-zone-inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 3rem 2rem;
    gap: 1rem;
}

.upload-icon-wrap {
    position: relative;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.upload-orb {
    position: absolute;
    inset: -10px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.15), transparent 70%);
    animation: orbPulse 2.5s ease-in-out infinite;
}

@keyframes orbPulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.15);
        opacity: 1;
    }
}

.upload-icon {
    width: 56px;
    height: 56px;
    color: var(--accent-cyan);
    filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.4));
}

.upload-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.upload-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 480px;
    line-height: 1.5;
}

.upload-or {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 200px;
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.upload-or::before,
.upload-or::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.upload-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.75rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 16px rgba(0, 212, 255, 0.25);
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 212, 255, 0.35);
}

.upload-btn.secondary {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    box-shadow: none;
}

.upload-btn.secondary:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

/* Upload Buttons Group */
.upload-buttons-group {
    display: flex;
    gap: 0.75rem;
    width: 100%;
    max-width: 500px;
}

.upload-buttons-group .upload-btn {
    flex: 1;
}

/* Sample Data Selector */
.sample-data-group {
    display: flex;
    gap: 0.5rem;
    width: 100%;
}

.dataset-select {
    flex: 1;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.dataset-select:hover {
    border-color: var(--accent-cyan);
}

.dataset-select:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

.dataset-select option {
    background: var(--bg-secondary);
}

/* Biodiversity Database Search */
.biodiversity-search-group {
    width: 100%;
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.biodiversity-search-group:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.1);
}

.biodiversity-search-header {
    margin-bottom: 1rem;
}

.biodiversity-search-header h4 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
}

.biodiversity-search-subtitle {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.biodiversity-search-controls {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.biodiversity-search-input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.biodiversity-search-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

.biodiversity-search-input::placeholder {
    color: var(--text-tertiary);
}

.biodiversity-db-options {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.db-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: color 0.2s ease;
}

.db-option:hover {
    color: var(--text-primary);
}

.db-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent-cyan);
}

.biodiversity-results {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    max-height: 300px;
    overflow-y: auto;
}

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

.biodiversity-results-header h5 {
    margin: 0;
    color: var(--text-primary);
    font-size: 0.95rem;
}

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

.biodiversity-result-item {
    padding: 0.5rem;
    margin: 0.25rem 0;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.biodiversity-loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.biodiversity-loading::after {
    content: '...';
    animation: biodiversity-dots 1.5s steps(4, end) infinite;
}

@keyframes biodiversity-dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* Advanced Biodiversity Options */
.biodiversity-advanced-options {
    padding: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-top: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.advanced-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.advanced-label a {
    color: var(--accent-cyan);
    text-decoration: none;
}

.advanced-label a:hover {
    text-decoration: underline;
}

.advanced-select, .advanced-input {
    width: 100%;
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.9rem;
}

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

.advanced-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.advanced-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--accent-cyan);
}

/* Photo Gallery */
.biodiversity-photo-gallery {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.photo-gallery-item {
    position: relative;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.photo-gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 212, 255, 0.2);
    border-color: var(--accent-cyan);
}

.photo-gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.photo-gallery-info {
    padding: 0.75rem;
    background: var(--bg-tertiary);
}

.photo-taxon {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.photo-meta {
    display: flex;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    flex-wrap: wrap;
}

.photo-meta span {
    white-space: nowrap;
}

/* Enhanced Results Display */
.biodiversity-results-enhanced {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.biodiversity-result-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.biodiversity-result-stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.biodiversity-result-stat-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.biodiversity-action-group {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.biodiversity-action-group button {
    flex: 1;
}
    color: var(--text-primary);
    padding: 0.5rem;
}

.sample-data-group .upload-btn {
    white-space: nowrap;
    flex-shrink: 0;
}

/* Parsed Files */
.parsed-files {
    width: 100%;
    max-width: 700px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.parsed-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

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

.parsed-count {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.parsed-list {
    max-height: 300px;
    overflow-y: auto;
}

.parsed-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

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

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

.parsed-item-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.parsed-item-icon.tree {
    background: rgba(16, 185, 129, 0.15);
}

.parsed-item-icon.matrix {
    background: rgba(124, 58, 237, 0.15);
}

.parsed-item-icon.geo {
    background: rgba(59, 130, 246, 0.15);
}

.parsed-item-icon.image {
    background: rgba(245, 158, 11, 0.15);
}

.parsed-item-icon.other {
    background: rgba(148, 163, 184, 0.15);
}

.parsed-item-info {
    flex: 1;
    min-width: 0;
}

.parsed-item-name {
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.parsed-item-meta {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 2px;
}

.parsed-item-status {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.parsed-item-status.success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
}

.parsed-item-status.processing {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

.parsed-item-status.error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

.parsed-item-status.warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-amber);
}

/* Clear / Danger button */
.upload-btn.danger {
    background: transparent;
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--accent-red);
    box-shadow: none;
    font-size: 0.82rem;
    padding: 0.5rem 1.25rem;
}

.upload-btn.danger:hover {
    background: rgba(239, 68, 68, 0.12);
    border-color: var(--accent-red);
    box-shadow: 0 0 12px rgba(239, 68, 68, 0.2);
}

/* ═══════════════ COLUMN MAPPER MODAL ═══════════════ */
.column-mapper-info {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.column-mapper-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.mapper-field {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.mapper-field label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.mapper-field select {
    padding: 0.45rem 0.6rem;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition-fast);
    cursor: pointer;
}

.mapper-field select:focus {
    border-color: var(--accent-cyan);
}

.mapper-field select.auto-detected {
    border-color: var(--accent-green);
}

.column-mapper-preview {
    max-height: 150px;
    overflow-y: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

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

.column-mapper-preview th {
    padding: 0.4rem 0.6rem;
    text-align: left;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
    position: sticky;
    top: 0;
}

.column-mapper-preview td {
    padding: 0.35rem 0.6rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.72rem;
}

/* ═══════════════ PANEL HEADERS & TOOLBARS ═══════════════ */
.panel-header {
    margin-bottom: 1.5rem;
}

.panel-header h2 {
    font-size: 1.35rem;
    font-weight: 700;
}

.panel-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.3rem;
}

.panel-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
    flex-wrap: wrap;
    flex-shrink: 0;
}

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

.toolbar-group h2 {
    font-size: 1rem;
    font-weight: 600;
    white-space: nowrap;
}

.tool-btn {
    padding: 0.35rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.tool-btn.active {
    background: rgba(0, 212, 255, 0.12);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.divider-v {
    width: 1px;
    height: 20px;
    background: var(--border-color);
    margin: 0 0.25rem;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
}

.toggle-label input[type="checkbox"] {
    accent-color: var(--accent-cyan);
    cursor: pointer;
}

.time-slider-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* ═══════════════ BUTTONS & INPUTS ═══════════════ */
.btn {
    padding: 0.5rem 1.2rem;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

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

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: #fff;
    box-shadow: 0 2px 10px rgba(0, 212, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 212, 255, 0.35);
}

.range-input {
    appearance: none;
    -webkit-appearance: none;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
    width: 120px;
}

.range-input::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-cyan);
    box-shadow: 0 0 6px rgba(0, 212, 255, 0.5);
    cursor: pointer;
}

.range-val {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    min-width: 40px;
}

.input-sm {
    padding: 0.4rem 0.6rem;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition-fast);
    width: 80px;
}

.input-sm:focus {
    border-color: var(--accent-cyan);
}

/* ═══════════════ NEXT STEP BAR ═══════════════ */
.next-step-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    margin-top: 1.5rem;
    background: var(--gradient-glow);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    animation: fadeInUp 0.4s ease;
}

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

.next-step-hint {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-cyan);
}

.next-step-bar .btn {
    padding: 0.5rem 1.2rem;
    font-size: 0.85rem;
}

.next-step-bar .btn-secondary {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.next-step-bar .btn-secondary:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* ═══════════════ AUDIT PANEL ═══════════════ */
.audit-controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-glass);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.control-group label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.control-group.inline {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
}

.audit-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.audit-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: border-color var(--transition-base);
}

.audit-card:hover {
    border-color: rgba(148, 163, 184, 0.2);
}

.audit-card-title {
    padding: 0.85rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
}

.audit-card-title.success {
    color: var(--accent-green);
}

.audit-card-title.warning {
    color: var(--accent-amber);
}

.audit-card-title.danger {
    color: var(--accent-red);
}

.audit-card-title.info {
    color: var(--accent-blue);
}

.audit-card-body {
    padding: 1rem;
    max-height: 300px;
    overflow-y: auto;
}

.audit-item {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.05);
    font-size: 0.82rem;
}

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

.audit-item-icon {
    flex-shrink: 0;
    font-size: 0.9rem;
    margin-top: 1px;
}

.audit-item-text {
    flex: 1;
    color: var(--text-secondary);
    line-height: 1.4;
}

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

.audit-item-action {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-tertiary);
    cursor: pointer;
    font-family: var(--font-sans);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.audit-item-action:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.empty-msg {
    color: var(--text-tertiary);
    font-size: 0.82rem;
    font-style: italic;
}

/* ═══════════════ TREE CONTAINER ═══════════════ */
.tree-container {
    flex: 1;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    position: relative;
    min-height: 400px;
}

.tree-container svg {
    width: 100%;
    height: 100%;
}

.tree-container .empty-state {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: var(--text-tertiary);
}

.empty-state .empty-icon {
    font-size: 3rem;
    opacity: 0.5;
}

.empty-state p {
    font-size: 0.9rem;
}

/* Tree node styles */
.tree-node circle {
    fill: var(--accent-cyan);
    stroke: var(--bg-primary);
    stroke-width: 2;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.tree-node circle:hover {
    fill: var(--accent-purple);
    r: 6;
    filter: drop-shadow(0 0 6px rgba(124, 58, 237, 0.5));
}

.tree-node.selected circle {
    fill: var(--accent-amber);
    r: 7;
    filter: drop-shadow(0 0 8px rgba(245, 158, 11, 0.6));
}

.tree-node text {
    font-family: var(--font-sans);
    font-size: 11px;
    fill: var(--text-secondary);
    cursor: pointer;
    transition: fill var(--transition-fast);
}

.tree-node text:hover {
    fill: var(--text-primary);
}

.tree-node.selected text {
    fill: var(--accent-amber);
    font-weight: 600;
}

.tree-link {
    fill: none;
    stroke: rgba(148, 163, 184, 0.3);
    stroke-width: 1.5;
    transition: stroke var(--transition-fast);
}

.tree-link.highlighted {
    stroke: var(--accent-cyan);
    stroke-width: 2.5;
    filter: drop-shadow(0 0 4px rgba(0, 212, 255, 0.4));
}

/* ═══════════════ MAP CONTAINER ═══════════════ */
.map-container {
    flex: 1;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    min-height: 400px;
}

/* Dark Leaflet theme overrides */
.leaflet-container {
    background: var(--bg-primary) !important;
}

.leaflet-control {
    border-radius: var(--radius-sm) !important;
}

.leaflet-control a {
    background: var(--bg-tertiary) !important;
    color: var(--text-secondary) !important;
    border-color: var(--border-color) !important;
}

.leaflet-control a:hover {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

.specimen-marker {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #4da6a8;
    border: 1.5px solid var(--bg-primary);
    box-shadow: 0 0 3px rgba(77, 166, 168, 0.35);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.specimen-marker:hover {
    transform: scale(1.3);
    box-shadow: 0 0 6px rgba(77, 166, 168, 0.5);
}

.specimen-marker.selected {
    background: #d4a44a;
    box-shadow: 0 0 5px rgba(212, 164, 74, 0.4);
}

.leaflet-popup-content-wrapper {
    background: var(--bg-glass) !important;
    backdrop-filter: blur(20px) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-md) !important;
    color: var(--text-primary) !important;
    box-shadow: var(--shadow-lg) !important;
}

.leaflet-popup-tip {
    background: var(--bg-glass) !important;
}

.popup-content h4 {
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
    color: var(--accent-cyan);
}

.popup-content p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin: 0.15rem 0;
}

/* ═══════════════ GLOBE CONTAINER ═══════════════ */
.globe-container {
    flex: 1;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    min-height: 400px;
    background: radial-gradient(ellipse at center, #0d1b2a 0%, #0a0e1a 100%);
    position: relative;
}

.globe-container canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ═══════════════ ANALYTICS PANEL ═══════════════ */
.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.25rem;
}

.analytics-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    transition: all var(--transition-base);
}

.analytics-card:hover {
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-glow);
}

.analytics-card-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.analytics-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.analytics-card p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.analytics-controls {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.progress-wrap {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: var(--bg-primary);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 3px;
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    min-width: 35px;
}

/* Tree Statistics Panel */
.stats-result {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    text-align: center;
}

.stat-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
}

.stat-hint {
    font-size: 0.65rem;
    color: var(--text-tertiary);
}

/* Synapomorphy List */
.synapo-result {
    margin-top: 1rem;
    padding: 0.75rem;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.synapo-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.synapo-char {
    color: var(--accent-purple);
    font-weight: 600;
    min-width: 50px;
}

.synapo-node {
    color: var(--accent-green);
}

.synapo-change {
    color: var(--text-secondary);
}

/* GBIF Results */
.gbif-results,
.gbif-modal-results {
    margin-top: 1rem;
    max-height: 300px;
    overflow-y: auto;
}

.gbif-result-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.gbif-result-item:hover {
    border-color: var(--accent-cyan);
    background: var(--bg-hover);
}

.gbif-result-name {
    font-size: 0.85rem;
    font-weight: 500;
    font-style: italic;
}

.gbif-result-info {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* ═══════════════ MODALS ═══════════════ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.modal {
    width: 90%;
    max-width: 520px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.modal-lg {
    max-width: 680px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.modal-close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: 1rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

.modal-body {
    padding: 1.5rem;
}

/* Export Options */
.export-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.export-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-sans);
    text-align: center;
    color: var(--text-primary);
}

.export-option:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.export-icon {
    font-size: 1.8rem;
}

.export-name {
    font-size: 0.85rem;
    font-weight: 600;
}

.export-desc {
    font-size: 0.72rem;
    color: var(--text-tertiary);
}

/* Share */
.share-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.share-url-wrap {
    display: flex;
    gap: 0.5rem;
}

.share-url-input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    border-radius: var(--radius-sm);
    outline: none;
}

/* GBIF Search */
.gbif-search-wrap {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.gbif-search-input {
    flex: 1;
    padding: 0.6rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--transition-fast);
}

.gbif-search-input:focus {
    border-color: var(--accent-cyan);
}

/* ═══════════════ TOASTS ═══════════════ */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column-reverse;
    gap: 0.5rem;
    z-index: 2000;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 0.82rem;
    color: var(--text-primary);
    animation: slideInToast 0.3s ease, fadeOutToast 0.3s ease 3.7s;
    min-width: 280px;
    max-width: 420px;
}

.toast.success {
    border-color: rgba(16, 185, 129, 0.4);
}

.toast.warning {
    border-color: rgba(245, 158, 11, 0.4);
}

.toast.error {
    border-color: rgba(239, 68, 68, 0.4);
}

.toast.info {
    border-color: rgba(59, 130, 246, 0.4);
}

.toast-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

@keyframes slideInToast {
    from {
        transform: translateX(100px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeOutToast {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

/* ═══════════════ RESPONSIVE ═══════════════ */
@media (max-width: 900px) {
    .nav-tabs {
        overflow-x: auto;
        justify-content: flex-start;
    }

    .tab-label {
        display: none;
    }

    .nav-tab {
        padding: 0.5rem 0.75rem;
    }

    .nav-actions {
        gap: 0.25rem;
    }

    .nav-btn span:last-child {
        display: none;
    }

    .audit-sections {
        grid-template-columns: 1fr;
    }

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

    .export-options {
        grid-template-columns: 1fr;
    }

    .panel-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 600px) {
    .top-nav {
        padding: 0 0.75rem;
        height: 48px;
    }

    .brand-name {
        font-size: 1rem;
    }

    .panel {
        padding: 1rem;
    }

    .upload-zone-inner {
        padding: 2rem 1rem;
    }

    .upload-title {
        font-size: 1.2rem;
    }
}

/* ═══════════════ SPECIES LEGEND ═══════════════ */
.map-legend {
    position: absolute;
    bottom: 16px;
    right: 16px;
    z-index: 800;
    background: rgba(13, 17, 23, 0.88);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 240px;
    max-height: 300px;
    overflow: hidden;
    font-size: 0.78rem;
}

.legend-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-secondary);
}

.legend-toggle-all {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.85rem;
    padding: 2px;
    opacity: 0.7;
    transition: opacity 0.15s;
}

.legend-toggle-all:hover {
    opacity: 1;
}

.legend-body {
    max-height: 230px;
    overflow-y: auto;
    padding: 0.25rem 0;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.75rem;
    cursor: pointer;
    transition: background 0.15s;
}

.legend-item:hover {
    background: rgba(148, 163, 184, 0.06);
}

.legend-item.hidden-taxon {
    opacity: 0.4;
}

.legend-swatch {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.legend-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.legend-count {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-tertiary);
    min-width: 18px;
    text-align: right;
}

.legend-eye {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.72rem;
    padding: 0;
    opacity: 0.6;
    transition: opacity 0.15s;
}

.legend-eye:hover {
    opacity: 1;
}

.legend-eye.off {
    opacity: 0.3;
}

/* ═══════════════ STATS CARD ═══════════════ */
.stats-card {
    width: 100%;
    max-width: 700px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.stats-header {
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0;
}

.stat-item {
    padding: 0.85rem 1rem;
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat-item:last-child {
    border-right: none;
}

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

.stat-label {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: 0.2rem;
}

/* ═══════════════ SPECIMEN DATA TABLE ═══════════════ */
.data-table-wrap {
    width: 100%;
    max-width: 700px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.data-table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

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

.data-table-count {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.data-table-scroll {
    max-height: 350px;
    overflow-y: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
}

.data-table thead th {
    padding: 0.55rem 0.85rem;
    text-align: left;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    position: sticky;
    top: 0;
    z-index: 5;
    white-space: nowrap;
}

.data-table thead th.sortable {
    cursor: pointer;
    user-select: none;
    transition: color 0.15s;
}

.data-table thead th.sortable:hover {
    color: var(--text-primary);
}

.data-table thead th.sort-active {
    color: var(--accent-cyan);
}

.data-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background 0.12s;
    cursor: pointer;
}

.data-table tbody tr:hover {
    background: rgba(148, 163, 184, 0.05);
}

.data-table tbody tr.highlighted {
    background: rgba(77, 166, 168, 0.08);
}

.data-table tbody td {
    padding: 0.45rem 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 160px;
}

.data-table tbody td:first-child {
    font-style: italic;
    color: var(--text-primary);
    font-weight: 500;
}

.data-table tbody td.mono {
    font-family: var(--font-mono);
    font-size: 0.72rem;
}

/* ═══════════════ MATRIX EDITOR ═══════════════ */
.matrix-container {
    flex: 1;
    overflow: hidden;
    position: relative;
    display: flex;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.matrix-scroll-wrap {
    flex: 1;
    overflow: auto;
    width: 100%;
    height: 100%;
}

.matrix-grid {
    border-collapse: separate;
    /* Required for sticky */
    border-spacing: 0;
    font-size: 0.8rem;
    min-width: 100%;
}

.matrix-grid th,
.matrix-grid td {
    padding: 0.5rem 0.25rem;
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    min-width: 32px;
}

.matrix-grid th {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 10;
    white-space: nowrap;
}

.matrix-grid .sticky-col {
    position: sticky;
    left: 0;
    background: var(--bg-tertiary);
    z-index: 20;
    text-align: left;
    padding-left: 0.75rem;
    border-right: 2px solid var(--border-color);
    min-width: 120px;
    max-width: 180px;
}

/* Fix top-left corner z-index */
.matrix-grid thead th.sticky-col {
    z-index: 30;
}

.matrix-cell {
    cursor: text;
    transition: background 0.1s;
    font-family: var(--font-mono);
}

.matrix-cell:hover {
    filter: brightness(1.1);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.matrix-cell:focus {
    outline: 2px solid var(--accent-cyan);
    background: var(--bg-primary);
    color: var(--text-primary);
    z-index: 5;
}

/* Matrix Row Hover */
.matrix-grid tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

/* State Colors (WinClada-ish style) */
.state-0 {
    background: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
}

/* Blue */
.state-1 {
    background: rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
}

/* Green */
.state-2 {
    background: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
}

/* Amber */
.state-3 {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

/* Red */
.state-4 {
    background: rgba(139, 92, 246, 0.2);
    color: #c4b5fd;
}

/* Purple */
.state-missing {
    background: var(--bg-secondary);
    color: var(--text-tertiary);
}

.state-poly {
    background: var(--bg-primary);
    color: var(--accent-magenta);
    font-weight: bold;
    border: 1px dashed var(--border-color);
}

/* ═══════════════ INFO MODAL & TABS ═══════════════ */
.info-tabs {
    display: flex;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
}

.info-tab {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

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

.info-tab.active {
    color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.1);
}

.info-content-area {
    min-height: 300px;
    max-height: 60vh;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.info-section {
    animation: fadeIn 0.3s ease;
}

.info-section h4 {
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.info-section p,
.info-section li {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.info-section ul,
.info-section ol {
    margin-bottom: 1rem;
}


/* ═══════════════ RESPONSIVE DESIGN ═══════════════ */
@media (max-width: 1024px) {
    .nav-brand .brand-tag {
        display: none;
    }
}

@media (max-width: 768px) {
    body {
        overflow: auto;
        /* Allow body scroll on mobile if needed */
    }

    /* Stack Nav */
    .top-nav {
        flex-direction: column;
        height: auto;
        padding: 0.75rem;
        gap: 1rem;
    }

    .nav-brand {
        width: 100%;
        justify-content: center;
    }

    /* Scrollable Tabs */
    .nav-tabs {
        width: 100%;
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 0.5rem;
        -webkit-overflow-scrolling: touch;
    }

    .nav-tab {
        flex-shrink: 0;
    }

    /* Adjust Actions */
    .nav-actions {
        width: 100%;
        justify-content: center;
    }

    /* Adjust Main Content Height */
    #mainContent {
        height: calc(100vh - 180px);
        /* Approx nav height */
    }

    /* Panels */
    .panel {
        padding: 1rem;
    }

    .panel-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .panel-toolbar {
        width: 100%;
        overflow-x: auto;
    }

    /* Map & Globe */
    #mapContainer,
    #globeContainer {
        border-radius: var(--radius-md);
    }
}

/* ═══════════════ webR ANALYSIS ═══════════════ */
.analytics-section-divider {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0 0.5rem 0;
    border-top: 2px solid transparent;
    background-image: linear-gradient(var(--bg-secondary), var(--bg-secondary)),
        linear-gradient(135deg, #10b981, #3b82f6);
    background-origin: border-box;
    background-clip: padding-box, border-box;
    margin-top: 1rem;
}

.divider-label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.divider-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.divider-badge.ready {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
}

.divider-badge.warning {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    cursor: help;
}

.divider-badge.error {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    cursor: help;
}

.webr-info-banner {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.webr-info-banner .info-icon {
    font-size: 1.1rem;
}

.webr-info-banner .info-text strong {
    color: var(--accent-cyan);
}

.webr-info-banner .btn-dismiss {
    margin-left: auto;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 0.25rem;
}

.webr-info-banner .btn-dismiss:hover {
    color: var(--text-primary);
}

.webr-card {
    border: 1px solid rgba(16, 185, 129, 0.15);
}

.webr-card:hover {
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.08);
}

.webr-card code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    background: rgba(16, 185, 129, 0.1);
    color: #6ee7b7;
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
}

.r-result-panel {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-height: 250px;
    overflow-y: auto;
    white-space: pre-wrap;
}

.r-result-panel .result-highlight {
    color: var(--accent-green);
    font-weight: 600;
}

.r-result-panel .result-label {
    color: var(--text-tertiary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ═══════════════ APP FOOTER ═══════════════ */
.app-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.45rem 1rem;
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-color);
    font-size: 0.78rem;
    color: var(--text-tertiary);
}

.app-footer a {
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.app-footer a:hover {
    color: var(--accent-green);
    text-decoration: underline;
}

.footer-sep {
    color: var(--border-color);
    font-size: 0.9rem;
}

/* ═══════════════ THEME TOGGLE ═══════════════ */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.6rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.theme-toggle:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

.theme-toggle-icon {
    font-size: 1rem;
    transition: transform var(--transition-base);
}

.theme-toggle:hover .theme-toggle-icon {
    transform: rotate(15deg);
}

/* ═══════════════ SETTINGS PANEL ═══════════════ */
.settings-panel {
    position: fixed;
    top: 0;
    right: -400px;
    width: 380px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    z-index: 1100;
    transition: right var(--transition-slow);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

.settings-panel.open {
    right: 0;
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.settings-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.settings-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: 1.2rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.settings-close:hover {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

.settings-body {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.settings-section {
    margin-bottom: 1.5rem;
}

.settings-section-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border-color);
}

.settings-row:last-child {
    border-bottom: none;
}

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

.settings-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Color Picker */
.color-picker-wrap {
    position: relative;
}

.color-picker {
    width: 32px;
    height: 24px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 0;
    background: transparent;
}

.color-picker::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.color-picker::-webkit-color-swatch {
    border-radius: 3px;
    border: none;
}

/* Range Slider Enhanced */
.range-slider {
    width: 100px;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    appearance: none;
    -webkit-appearance: none;
}

.range-slider::-webkit-slider-thumb {
    width: 14px;
    height: 14px;
    background: var(--accent-cyan);
    border-radius: 50%;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    box-shadow: 0 0 6px rgba(0, 212, 255, 0.4);
}

/* Select Dropdown */
.settings-select {
    padding: 0.35rem 0.6rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-family: var(--font-sans);
    cursor: pointer;
    min-width: 100px;
}

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

/* ═══════════════ SPLIT VIEW MODE ═══════════════ */
.split-view-container {
    display: none;
    position: absolute;
    inset: 0;
    flex-direction: row;
}

.split-view-container.active {
    display: flex;
}

.split-pane {
    flex: 1;
    overflow: hidden;
    position: relative;
    border-right: 1px solid var(--border-color);
}

.split-pane:last-child {
    border-right: none;
}

.split-pane-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8rem;
    font-weight: 600;
}

.split-pane-content {
    height: calc(100% - 36px);
    overflow: hidden;
}

.split-resizer {
    width: 6px;
    background: var(--border-color);
    cursor: col-resize;
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.split-resizer:hover {
    background: var(--accent-cyan);
}

/* ═══════════════ KEYBOARD SHORTCUTS ═══════════════ */
.shortcuts-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

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

.shortcuts-modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.shortcuts-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.shortcut-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.shortcut-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.shortcut-keys {
    display: flex;
    gap: 0.25rem;
}

.key {
    padding: 0.2rem 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-primary);
    min-width: 24px;
    text-align: center;
}

/* ═══════════════ UNDO/REDO CONTROLS ═══════════════ */
.history-controls {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.history-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.history-btn:hover:not(:disabled) {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

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

/* ═══════════════ CLADE SUPPORT VISUALIZATION ═══════════════ */
.support-badge {
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 700;
    padding: 1px 4px;
    border-radius: 3px;
    fill: var(--bg-primary);
}

.support-badge.high {
    fill: var(--accent-green);
}

.support-badge.medium {
    fill: var(--accent-amber);
}

.support-badge.low {
    fill: var(--accent-red);
}

/* ═══════════════ MOLECULAR CLOCK PANEL ═══════════════ */
.clock-calibration-panel {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem;
    margin-top: 1rem;
}

.calibration-point {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
}

.calibration-node {
    font-weight: 600;
    color: var(--accent-cyan);
    font-size: 0.85rem;
    min-width: 120px;
}

.calibration-inputs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
}

.calibration-input {
    width: 70px;
    padding: 0.3rem 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

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

/* ═══════════════ BIOGEOGRAPHIC REGIONS ═══════════════ */
.region-editor {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.region-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    transition: all var(--transition-fast);
}

.region-card:hover {
    border-color: var(--accent-cyan);
}

.region-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.region-color {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid var(--bg-primary);
}

.region-name {
    font-weight: 600;
    font-size: 0.9rem;
    flex: 1;
}

.region-code {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-tertiary);
    background: var(--bg-primary);
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
}

.region-taxa {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* ═══════════════ EVENT-BASED BIOGEOGRAPHY ═══════════════ */
.event-timeline {
    position: relative;
    padding-left: 24px;
    margin-top: 1rem;
}

.event-timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.biogeography-event {
    position: relative;
    padding: 0.6rem 0.75rem;
    margin-bottom: 0.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-left: 16px;
}

.biogeography-event::before {
    content: '';
    position: absolute;
    left: -24px;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent-cyan);
    border: 2px solid var(--bg-secondary);
}

.biogeography-event.dispersal::before {
    background: var(--accent-green);
}

.biogeography-event.vicariance::before {
    background: var(--accent-purple);
}

.biogeography-event.extinction::before {
    background: var(--accent-red);
}

.event-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.3rem;
}

.event-type {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
}

.event-type.dispersal {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
}

.event-type.vicariance {
    background: rgba(124, 58, 237, 0.15);
    color: var(--accent-purple);
}

.event-type.extinction {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

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

.event-description {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

/* ═══════════════ TRAIT EVOLUTION ANIMATION ═══════════════ */
.trait-animation-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--bg-glass);
    border-radius: var(--radius-md);
    margin-top: 0.75rem;
}

.animation-play-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.animation-play-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
}

.animation-progress {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.animation-track {
    flex: 1;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.animation-fill {
    height: 100%;
    background: var(--gradient-primary);
    width: 0%;
    transition: width 0.1s linear;
}

.animation-time {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-tertiary);
    min-width: 60px;
}

.animation-speed {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ═══════════════ DIVERGENCE TIME DISPLAY ═══════════════ */
.divergence-scale {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
}

.divergence-scale-bar {
    width: 100px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.divergence-scale-label {
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

/* ═══════════════ ADVANCED ANALYSIS CARDS ═══════════════ */
.analysis-card-advanced {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    transition: all var(--transition-base);
}

.analysis-card-advanced:hover {
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: var(--shadow-glow);
}

.analysis-card-advanced.running {
    border-color: var(--accent-amber);
    animation: pulseGlow 2s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 10px rgba(245, 158, 11, 0.2);
    }
    50% {
        box-shadow: 0 0 25px rgba(245, 158, 11, 0.4);
    }
}

.analysis-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.5rem;
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 3px;
    margin-left: 0.5rem;
}

/* ═══════════════ TOUCH GESTURES INDICATOR ═══════════════ */
.touch-indicator {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    width: 50px;
    height: 50px;
    border: 2px solid var(--accent-cyan);
    border-radius: 50%;
    opacity: 0;
    transform: scale(0);
    transition: all 0.2s ease;
}

.touch-indicator.active {
    opacity: 0.5;
    transform: scale(1);
}

/* ═══════════════ CONSTRAINT TREE PANEL ═══════════════ */
.constraint-panel {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem;
}

.constraint-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.constraint-taxon {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.6rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-style: italic;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.constraint-taxon:hover {
    border-color: var(--accent-cyan);
}

.constraint-taxon.selected {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.constraint-taxon .remove {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    cursor: pointer;
}

.constraint-taxon .remove:hover {
    color: var(--accent-red);
}

/* ═══════════════ ANALYTICS SECTION DIVIDERS ═══════════════ */
.analytics-section-divider {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0 0.5rem;
    padding: 0.5rem 0;
}

.divider-label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
}

.divider-badge {
    padding: 0.2rem 0.6rem;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 20px;
}

.analytics-section-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--border-color), transparent);
}

/* ═══════════════ SMALL INPUT STYLES ═══════════════ */
.input-sm {
    padding: 0.35rem 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);