/* ==========================================================================
   Autonomous High-Clearance Agricultural Rover - CSS Design System
   Modern Glassmorphism, Rich Dark Theme, Engineering Aesthetic
   ========================================================================== */

:root {
    /* Color Palette */
    --bg-dark: #0a0d14;
    --bg-surface: rgba(15, 23, 42, 0.75);
    --bg-surface-elevated: rgba(30, 41, 59, 0.85);
    --bg-card: rgba(15, 23, 42, 0.65);
    --bg-card-hover: rgba(30, 41, 59, 0.9);
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-accent: rgba(56, 189, 248, 0.3);
    --border-active: #38bdf8;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    /* Functional Accents */
    --cyan: #38bdf8;
    --cyan-glow: rgba(56, 189, 248, 0.35);
    --emerald: #34d399;
    --emerald-glow: rgba(52, 211, 153, 0.35);
    --amber: #fbbf24;
    --amber-glow: rgba(251, 191, 36, 0.35);
    --purple: #a855f7;
    --purple-glow: rgba(168, 85, 247, 0.35);
    --blue: #60a5fa;
    --red: #f87171;
    
    /* Layout & Geometry */
    --header-height: 64px;
    --panel-width: 360px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Shadows & Blur */
    --glass-blur: blur(16px);
    --glass-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 1px 1px rgba(255, 255, 255, 0.05);
    --glow-cyan: 0 0 20px rgba(56, 189, 248, 0.3);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

#app-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

#canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Text Utility Classes */
.text-cyan { color: var(--cyan); }
.text-emerald { color: var(--emerald); }
.text-amber { color: var(--amber); }
.text-purple { color: var(--purple); }
.text-blue { color: var(--blue); }
.text-red { color: var(--red); }

/* Glassmorphic Panel Styles */
.glass-header, .glass-panel, .glass-footer {
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--glass-shadow);
}

/* ==========================================================================
   Header Navigation Bar
   ========================================================================== */
.glass-header {
    position: absolute;
    top: 12px;
    left: 12px;
    right: 12px;
    height: var(--header-height);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 10;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-badge {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #0ea5e9, #10b981);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: #fff;
    box-shadow: 0 0 15px rgba(14, 165, 233, 0.4);
}

.brand-text h1 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #fff;
}

.brand-text h1 span {
    color: var(--cyan);
    font-size: 0.85rem;
    font-weight: 600;
    margin-left: 4px;
    padding: 2px 6px;
    background: rgba(56, 189, 248, 0.15);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 4px;
}

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

/* Telemetry Pills in Header */
.header-telemetry {
    display: flex;
    align-items: center;
    gap: 10px;
}

.telemetry-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-subtle);
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
}

.pill-label {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.pill-value {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--cyan);
}

.spray-pill .status-active {
    color: var(--emerald);
    position: relative;
    padding-left: 12px;
}

.spray-pill .status-active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--emerald);
    box-shadow: 0 0 8px var(--emerald);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: translateY(-50%) scale(1); }
    50% { opacity: 0.4; transform: translateY(-50%) scale(0.8); }
}

/* Header Action Buttons */
.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
}

.btn-icon {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid var(--border-subtle);
    color: var(--text-main);
    padding: 8px 14px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.btn-icon:hover {
    background: rgba(56, 189, 248, 0.15);
    border-color: var(--cyan);
    color: var(--cyan);
}

.btn-icon[data-active="true"] {
    background: rgba(56, 189, 248, 0.2);
    border-color: var(--cyan);
    color: var(--cyan);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.25);
}

.btn-primary {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #0284c7, #0369a1);
    border: 1px solid #38bdf8;
    color: #fff;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition-fast);
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0369a1, #0284c7);
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.5);
    transform: translateY(-1px);
}

/* Export Dropdown */
.export-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 200px;
    background: var(--bg-surface-elevated);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0,0,0,0.6);
    padding: 6px;
    display: none;
    flex-direction: column;
    gap: 4px;
    z-index: 50;
}

.export-dropdown.show {
    display: flex;
    animation: fadeIn 0.15s ease-out;
}

.export-opt {
    display: flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-align: left;
    font-size: 0.82rem;
    transition: var(--transition-fast);
}

.export-opt:hover {
    background: rgba(56, 189, 248, 0.15);
    color: var(--cyan);
}

/* ==========================================================================
   Sidebars (Left & Right Panels)
   ========================================================================== */
.sidebar-panel {
    position: absolute;
    top: calc(var(--header-height) + 24px);
    bottom: 48px;
    width: var(--panel-width);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    z-index: 10;
    overflow: hidden;
    transition: transform var(--transition-normal);
}

.left-panel {
    left: 12px;
}

.right-panel {
    right: 12px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(15, 23, 42, 0.4);
}

.panel-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
}

.panel-title i {
    color: var(--cyan);
    font-size: 1.1rem;
}

.panel-title h2 {
    font-size: 1.05rem;
    font-weight: 600;
    color: #fff;
}

.btn-reset-all {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition-fast);
}

.btn-reset-all:hover {
    color: var(--text-main);
    border-color: var(--cyan);
    background: rgba(56, 189, 248, 0.1);
}

.panel-content {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    overflow-y: auto;
}

/* Custom Scrollbar */
.scrollable::-webkit-scrollbar {
    width: 5px;
}

.scrollable::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}

.scrollable::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

.scrollable::-webkit-scrollbar-thumb:hover {
    background: rgba(56, 189, 248, 0.4);
}

/* ==========================================================================
   Control Cards & Interactive Elements
   ========================================================================== */
.control-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: var(--transition-fast);
}

.control-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    background: var(--bg-card-hover);
}

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

.card-title-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.card-title-group i {
    font-size: 1.15rem;
    margin-top: 2px;
}

.card-title-group h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    line-height: 1.2;
}

.card-sub {
    font-size: 0.72rem;
    color: var(--text-dim);
    display: block;
    margin-top: 2px;
}

.badge-val {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 3px 8px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--cyan);
}

/* Sliders */
.slider-wrapper {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.range-limits {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-dim);
    font-family: var(--font-mono);
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    transition: var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid var(--cyan);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
    transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background: var(--cyan);
}

/* Quick Presets Buttons */
.quick-presets {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

.btn-preset {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    padding: 5px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-preset:hover {
    background: rgba(56, 189, 248, 0.15);
    border-color: var(--cyan);
    color: #fff;
}

/* Sub Slider Box */
.sub-slider-box {
    background: rgba(0, 0, 0, 0.25);
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sub-slider-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.sub-slider-header strong {
    color: var(--emerald);
    font-family: var(--font-mono);
}

.spec-notes {
    font-size: 0.72rem;
    color: var(--text-dim);
    padding-top: 2px;
}

.spec-notes strong {
    color: var(--text-muted);
}

/* Switches & Toggles */
.sync-switch-container {
    padding: 2px 0;
}

.switch-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.switch-label input[type="checkbox"] {
    display: none;
}

.slider-toggle {
    width: 34px;
    height: 18px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    position: relative;
    transition: var(--transition-fast);
}

.slider-toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 14px;
    height: 14px;
    background: #fff;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.switch-label input:checked + .slider-toggle {
    background: var(--emerald);
}

.switch-label input:checked + .slider-toggle::after {
    transform: translateX(16px);
}

/* Toggle Spray Switch */
.toggle-spray-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 22px;
    cursor: pointer;
}

.toggle-spray-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.spray-slider {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 34px;
    transition: 0.3s;
}

.spray-slider::before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
}

.toggle-spray-switch input:checked + .spray-slider {
    background: linear-gradient(135deg, #0ea5e9, #10b981);
    box-shadow: 0 0 12px rgba(14, 165, 233, 0.6);
}

.toggle-spray-switch input:checked + .spray-slider::before {
    transform: translateX(22px);
}

/* Steering Modes Grid */
.steer-modes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.radio-label:has(input:checked) {
    background: rgba(251, 191, 36, 0.15);
    border-color: var(--amber);
    color: #fff;
}

.radio-label input {
    accent-color: var(--amber);
}

/* Spray Controls & Tank Level */
.spray-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tank-level-container {
    background: rgba(0, 0, 0, 0.3);
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tank-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.tank-progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.tank-fill {
    height: 100%;
    background: linear-gradient(90deg, #38bdf8, #34d399);
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* Drive Buttons Grid */
.drive-buttons-grid {
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: center;
}

.drive-subgrid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    width: 100%;
}

.btn-drive {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-subtle);
    color: #fff;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition-fast);
    width: 100%;
}

.btn-drive:hover {
    background: rgba(168, 85, 247, 0.2);
    border-color: var(--purple);
    color: #fff;
    transform: translateY(-1px);
}

.btn-drive:active, .btn-drive.active {
    background: var(--purple);
    box-shadow: 0 0 15px var(--purple-glow);
    transform: translateY(0);
}

.btn-drive.btn-stop {
    background: rgba(248, 113, 113, 0.2);
    border-color: rgba(248, 113, 113, 0.4);
    color: var(--red);
}

.btn-drive.btn-stop:hover {
    background: var(--red);
    color: #fff;
}

.field-cruise-toggle {
    margin-top: 4px;
}

/* ==========================================================================
   Right Panel: Views, Components, Environment
   ========================================================================== */
.views-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.btn-view {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-view:hover {
    background: rgba(56, 189, 248, 0.15);
    color: #fff;
}

.btn-view.active {
    background: rgba(56, 189, 248, 0.25);
    border-color: var(--cyan);
    color: #fff;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

/* Component Breakdown List */
.component-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.component-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.component-item:hover {
    background: rgba(56, 189, 248, 0.12);
    border-color: var(--cyan);
}

.comp-icon {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cyan);
    font-size: 0.85rem;
}

.comp-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.comp-info strong {
    font-size: 0.8rem;
    color: #fff;
}

.comp-info span {
    font-size: 0.68rem;
    color: var(--text-dim);
}

.comp-view-icon {
    font-size: 0.75rem;
    color: var(--text-dim);
    transition: var(--transition-fast);
}

.component-item:hover .comp-view-icon {
    color: var(--cyan);
}

/* Exploded View Box */
.exploded-view-box {
    background: rgba(0, 0, 0, 0.25);
    border-radius: var(--radius-sm);
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    border: 1px dashed rgba(255, 255, 255, 0.1);
}

/* Environment Options */
.env-options-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.env-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.glass-select {
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border-subtle);
    color: #fff;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    outline: none;
    font-size: 0.8rem;
    cursor: pointer;
}

.crop-height-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

.crop-height-control span {
    font-family: var(--font-mono);
    color: var(--amber);
    font-size: 0.8rem;
    min-width: 45px;
}

.lighting-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

.btn-lighting {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-lighting:hover {
    background: rgba(251, 191, 36, 0.15);
    color: #fff;
}

.btn-lighting.active {
    background: rgba(251, 191, 36, 0.25);
    border-color: var(--amber);
    color: #fff;
}

.env-toggles {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 4px;
}

.checkbox-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
    cursor: pointer;
}

.checkbox-pill input {
    accent-color: var(--cyan);
}

/* Specs Reference Table */
.specs-summary-card {
    background: rgba(15, 23, 42, 0.4);
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.72rem;
}

.specs-table td {
    padding: 5px 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.specs-table td:first-child {
    color: var(--text-muted);
}

.specs-table td:last-child {
    text-align: right;
    color: #fff;
}

/* ==========================================================================
   Footer HUD
   ========================================================================== */
.glass-footer {
    position: absolute;
    bottom: 12px;
    left: 12px;
    right: 12px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    z-index: 10;
    font-size: 0.75rem;
}

.footer-hint {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-dim);
}

.footer-hint strong {
    color: var(--text-muted);
}

.footer-status {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-indicator.online {
    background: var(--emerald);
    box-shadow: 0 0 8px var(--emerald);
}

/* ==========================================================================
   Tooltips & Interactive Modals
   ========================================================================== */
.component-tooltip {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    width: 320px;
    background: var(--bg-surface-elevated);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--cyan);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 15px rgba(56, 189, 248, 0.3);
    z-index: 30;
    display: none;
    flex-direction: column;
    gap: 8px;
    animation: fadeInUp 0.2s ease-out;
}

.component-tooltip.show {
    display: flex;
}

.tooltip-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tooltip-header h4 {
    font-size: 0.9rem;
    color: var(--cyan);
    font-weight: 600;
}

.tooltip-header button {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
}

.tooltip-header button:hover {
    color: #fff;
}

.component-tooltip p {
    font-size: 0.78rem;
    color: var(--text-main);
    line-height: 1.4;
}

.tooltip-specs {
    font-size: 0.72rem;
    color: var(--text-dim);
    border-top: 1px solid var(--border-subtle);
    padding-top: 6px;
}

/* Floating Blueprint Button */
.floating-blueprint-btn {
    position: absolute;
    bottom: 56px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.95));
    border: 1px solid rgba(56, 189, 248, 0.4);
    color: #fff;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    z-index: 10;
    transition: var(--transition-fast);
}

.floating-blueprint-btn:hover {
    border-color: var(--cyan);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.4);
    transform: translateX(-50%) translateY(-2px);
}

.floating-blueprint-btn i {
    color: var(--cyan);
}

/* Diagram Modal */
.diagram-modal {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.diagram-modal.show {
    display: flex;
    animation: fadeIn 0.2s ease-out;
}

.diagram-modal-content {
    width: 900px;
    max-width: 95vw;
    max-height: 90vh;
    border-radius: var(--radius-lg);
    background: #0f172a;
    border: 1px solid var(--border-accent);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.diagram-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-title h3 {
    font-size: 1.1rem;
    color: #fff;
}

.btn-close-modal {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
}

.btn-close-modal:hover {
    color: #fff;
}

.diagram-tabs {
    display: flex;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border-subtle);
}

.diagram-tab {
    flex: 1;
    padding: 12px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.diagram-tab:hover {
    color: #fff;
}

.diagram-tab.active {
    color: var(--cyan);
    border-bottom: 2px solid var(--cyan);
    background: rgba(56, 189, 248, 0.08);
}

.diagram-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.diagram-view-page {
    display: none;
    flex-direction: column;
    gap: 14px;
}

.diagram-view-page.active {
    display: flex;
}

.diagram-info-banner {
    background: rgba(56, 189, 248, 0.1);
    border-left: 3px solid var(--cyan);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Guided Tour Header Pill */
.btn-tour-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.25), rgba(16, 185, 129, 0.25));
    border: 1px solid rgba(56, 189, 248, 0.5);
    color: #fff;
    padding: 7px 14px;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
    transition: var(--transition-fast);
    animation: tourPulse 2.5s infinite ease-in-out;
}

.btn-tour-pill:hover {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.45), rgba(16, 185, 129, 0.45));
    border-color: var(--cyan);
    box-shadow: 0 0 25px rgba(56, 189, 248, 0.4);
    transform: translateY(-1px);
}

@keyframes tourPulse {
    0%, 100% { box-shadow: 0 0 10px rgba(56, 189, 248, 0.2); }
    50% { box-shadow: 0 0 22px rgba(56, 189, 248, 0.5); }
}

/* Floating Sidebar Toggle Buttons */
.panel-toggle-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 60px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 20;
    backdrop-filter: var(--glass-blur);
    transition: var(--transition-fast);
    box-shadow: var(--glass-shadow);
}

.panel-toggle-btn.left-toggle {
    left: calc(var(--panel-width) + 24px);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.panel-toggle-btn.right-toggle {
    right: calc(var(--panel-width) + 24px);
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.panel-toggle-btn:hover {
    color: #fff;
    background: var(--bg-card-hover);
    border-color: var(--cyan);
    box-shadow: var(--glow-cyan);
}

.sidebar-panel.collapsed.left-panel {
    transform: translateX(calc(-100% - 24px));
}

.sidebar-panel.collapsed.right-panel {
    transform: translateX(calc(100% + 24px));
}

.panel-toggle-btn.left-toggle.collapsed {
    left: 12px;
}

.panel-toggle-btn.right-toggle.collapsed {
    right: 12px;
}

/* Live Telemetry HUD in Footer */
.live-telemetry-hud {
    display: flex;
    align-items: center;
    gap: 18px;
}

.hud-stat {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
}

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

.stat-val {
    font-family: var(--font-mono);
    font-weight: 600;
}

/* Guided CAD Tour Interactive Overlay */
.tour-overlay {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    width: 620px;
    max-width: 90vw;
    border-radius: var(--radius-lg);
    background: rgba(15, 23, 42, 0.92);
    border: 1px solid rgba(56, 189, 248, 0.4);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(56, 189, 248, 0.25);
    z-index: 50;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tour-overlay.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.tour-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(0, 0, 0, 0.2);
}

.tour-badge {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--cyan);
    display: flex;
    align-items: center;
    gap: 6px;
}

.tour-counter {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
}

.btn-close-tour {
    background: transparent;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 0.95rem;
}

.btn-close-tour:hover {
    color: #fff;
}

.tour-progress {
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.08);
}

.tour-progress-bar {
    height: 100%;
    width: 16.66%;
    background: linear-gradient(90deg, #0ea5e9, #10b981);
    transition: width 0.35s ease;
}

.tour-body {
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tour-body h3 {
    font-size: 1.15rem;
    color: #fff;
    font-weight: 700;
}

.tour-body h5 {
    font-size: 0.85rem;
    font-weight: 600;
}

.tour-body p {
    font-size: 0.84rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-top: 4px;
}

.tour-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.25);
    border-top: 1px solid var(--border-subtle);
}

.tour-controls-left, .tour-controls-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-tour-ctrl {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid var(--border-subtle);
    color: #fff;
    padding: 6px 14px;
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.btn-tour-ctrl:hover {
    background: var(--bg-card-hover);
    border-color: var(--cyan);
}

.btn-tour-ctrl.btn-primary {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    border-color: #38bdf8;
}

/* Modal View Mode Toggle (CAD vs Scan) */
.modal-header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.view-mode-toggle {
    display: flex;
    background: rgba(0, 0, 0, 0.4);
    padding: 3px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
}

.btn-view-mode {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 5px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.btn-view-mode.active {
    background: var(--bg-surface-elevated);
    color: var(--cyan);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

/* Scanned Blueprint Image Containers */
.blueprint-content-box {
    display: none;
    width: 100%;
}

.blueprint-content-box.active {
    display: block;
}

.scanned-image-container {
    background: #020617;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    padding: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    max-height: 480px;
    overflow: auto;
}

.scanned-blueprint-img {
    max-width: 100%;
    max-height: 440px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    filter: contrast(1.05);
}

/* Multi-Page PDF Scan Gallery Grid */
.pdf-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
    padding: 8px 0;
}

.pdf-card {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: var(--transition-fast);
}

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

.pdf-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    object-position: top;
    border-radius: var(--radius-sm);
    background: #020617;
}

.pdf-card span {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-main);
    text-align: center;
}

/* Animation Keyframes */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translate(-50%, 10px); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    :root {
        --panel-width: 310px;
    }
    .panel-toggle-btn.left-toggle {
        left: calc(var(--panel-width) + 24px);
    }
    .panel-toggle-btn.right-toggle {
        right: calc(var(--panel-width) + 24px);
    }
}

@media (max-width: 992px) {
    .header-telemetry, .live-telemetry-hud {
        display: none;
    }
}