/* ============================================
           CSS Custom Properties - Apple Design System
           ============================================ */
        :root {
            /* Colors */
            --apple-black: #1d1d1f;
            --apple-gray-1: #86868b;
            --apple-gray-2: #f5f5f7;
            --apple-gray-3: #fbfbfd;
            --apple-blue: #0071e3;
            --apple-blue-hover: #0077ed;
            --apple-green: #34c759;
            --apple-orange: #ff9500;
            --apple-red: #ff3b30;
            --apple-purple: #af52de;
            --apple-teal: #5ac8fa;
            --apple-cyan: #06b6d4;
            --apple-lime: #84cc16;
            --apple-pink: #ec4899;

            /* Dark Theme Colors */
            --gray-900: #0a0a0a;
            --gray-800: #1a1a1a;
            --gray-700: #2d2d2d;
            --gray-600: #404040;
            --gray-500: #6b7280;

            /* Route Colors */
            --route-1: #007AFF;
            --route-2: #34C759;
            --route-3: #FF9500;
            --route-4: #AF52DE;
            --route-5: #FF3B30;
            --route-6: #5AC8FA;

            /* Glassmorphism */
            --glass-bg: rgba(255, 255, 255, 0.72);
            --glass-bg-dark: rgba(29, 29, 31, 0.72);
            --glass-border: rgba(255, 255, 255, 0.18);
            --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);

            /* Typography */
            --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
            --font-text: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;
            --font-mono: 'SF Mono', SFMono-Regular, ui-monospace, Menlo, Monaco, monospace;

            /* Spacing */
            --space-xs: 4px;
            --space-sm: 8px;
            --space-md: 16px;
            --space-lg: 24px;
            --space-xl: 32px;
            --space-2xl: 48px;
            --space-3xl: 64px;

            /* Border Radius */
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 22px;
            --radius-full: 980px;

            /* Transitions */
            --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-medium: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-text);
            background: var(--apple-gray-3);
            color: var(--apple-black);
            line-height: 1.47059;
            letter-spacing: -0.022em;
            overflow-x: hidden;
        }

        /* ============================================
           Navigation Bar - Apple Style
           ============================================ */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 48px;
            background: var(--glass-bg);
            backdrop-filter: saturate(180%) blur(20px);
            -webkit-backdrop-filter: saturate(180%) blur(20px);
            border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
            z-index: 9999;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition-medium);
        }

        .navbar.scrolled {
            background: rgba(255, 255, 255, 0.92);
        }

        .navbar-content {
            width: 100%;
            max-width: 1024px;
            padding: 0 var(--space-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .navbar-logo {
            font-family: var(--font-display);
            font-size: 21px;
            font-weight: 600;
            color: var(--apple-black);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }

        .navbar-logo svg {
            width: 24px;
            height: 24px;
        }

        .navbar-links {
            display: flex;
            align-items: center;
            gap: var(--space-xl);
        }

        .navbar-link {
            font-size: 12px;
            font-weight: 400;
            color: var(--apple-black);
            text-decoration: none;
            opacity: 0.8;
            transition: opacity var(--transition-fast);
        }

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

        .navbar-cta {
            background: var(--apple-blue);
            color: white;
            font-size: 12px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .navbar-cta:hover {
            background: var(--apple-blue-hover);
            transform: scale(1.02);
        }

        /* ============================================
           Hero Section
           ============================================ */
        .hero {
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 100px var(--space-lg) var(--space-3xl);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 40%, rgba(0, 113, 227, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(175, 82, 222, 0.03) 0%, transparent 50%);
            animation: gradientShift 20s ease-in-out infinite;
            pointer-events: none;
        }

        @keyframes gradientShift {

            0%,
            100% {
                transform: translate(0, 0) rotate(0deg);
            }

            33% {
                transform: translate(2%, 2%) rotate(1deg);
            }

            66% {
                transform: translate(-2%, -1%) rotate(-1deg);
            }
        }

        .hero-eyebrow {
            font-size: 17px;
            font-weight: 600;
            color: var(--apple-orange);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: var(--space-md);
            opacity: 0;
            animation: fadeInUp 0.8s ease forwards 0.2s;
        }

        .hero-title {
            font-family: var(--font-display);
            font-size: clamp(48px, 8vw, 96px);
            font-weight: 700;
            line-height: 1.05;
            letter-spacing: -0.045em;
            color: var(--apple-black);
            margin-bottom: var(--space-lg);
            opacity: 0;
            animation: fadeInUp 0.8s ease forwards 0.4s;
        }

        .hero-title .gradient-text {
            background: linear-gradient(90deg, var(--apple-blue), var(--apple-purple));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: clamp(19px, 2.5vw, 28px);
            font-weight: 400;
            color: var(--apple-gray-1);
            max-width: 700px;
            margin-bottom: var(--space-2xl);
            opacity: 0;
            animation: fadeInUp 0.8s ease forwards 0.6s;
        }

        .hero-actions {
            display: flex;
            gap: var(--space-md);
            flex-wrap: wrap;
            justify-content: center;
            opacity: 0;
            animation: fadeInUp 0.8s ease forwards 0.8s;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

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

        /* ============================================
           Buttons - Apple Style
           ============================================ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: var(--space-sm);
            font-family: var(--font-text);
            font-size: 17px;
            font-weight: 400;
            padding: 12px 22px;
            border-radius: var(--radius-full);
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--apple-blue);
            color: white;
        }

        .btn-primary:hover {
            background: var(--apple-blue-hover);
            transform: scale(1.02);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            background: transparent;
            color: var(--apple-blue);
        }

        .btn-secondary:hover {
            background: rgba(0, 113, 227, 0.08);
        }

        .btn-glass {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            color: var(--apple-black);
            border: 0.5px solid rgba(0, 0, 0, 0.08);
        }

        .btn-glass:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }

        .btn-large {
            font-size: 21px;
            padding: 18px 36px;
        }

        .btn-icon {
            width: 20px;
            height: 20px;
            transition: transform var(--transition-fast);
        }

        .btn:hover .btn-icon {
            transform: translateX(4px);
        }

        /* ============================================
           Scroll Indicator
           ============================================ */
        .scroll-indicator {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: var(--space-sm);
            opacity: 0;
            animation: fadeInUp 0.8s ease forwards 1s, float 3s ease-in-out infinite 1.5s;
        }

        .scroll-indicator span {
            font-size: 12px;
            color: var(--apple-gray-1);
            text-transform: uppercase;
            letter-spacing: 0.1em;
        }

        .scroll-mouse {
            width: 24px;
            height: 40px;
            border: 2px solid var(--apple-gray-1);
            border-radius: 12px;
            position: relative;
        }

        .scroll-mouse::before {
            content: '';
            position: absolute;
            top: 8px;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 8px;
            background: var(--apple-gray-1);
            border-radius: 2px;
            animation: scrollWheel 2s ease-in-out infinite;
        }

        @keyframes scrollWheel {

            0%,
            100% {
                transform: translateX(-50%) translateY(0);
                opacity: 1;
            }

            50% {
                transform: translateX(-50%) translateY(8px);
                opacity: 0;
            }
        }

        @keyframes float {

            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }

            50% {
                transform: translateX(-50%) translateY(-10px);
            }
        }

        /* ============================================
           Feature Cards Section
           ============================================ */
        .features-section {
            padding: var(--space-3xl) var(--space-lg);
            max-width: 1440px;
            margin: 0 auto;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--space-3xl);
        }

        .section-eyebrow {
            font-size: 14px;
            font-weight: 600;
            color: var(--apple-gray-1);
            text-transform: uppercase;
            letter-spacing: 0.1em;
            margin-bottom: var(--space-sm);
        }

        .section-title {
            font-family: var(--font-display);
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 600;
            letter-spacing: -0.025em;
            color: var(--apple-black);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: var(--space-lg);
        }

        .feature-card {
            background: white;
            border-radius: var(--radius-xl);
            padding: var(--space-xl);
            position: relative;
            overflow: hidden;
            transition: all var(--transition-medium);
            border: 1px solid rgba(0, 0, 0, 0.04);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 24px 64px rgba(0, 0, 0, 0.12);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-bottom: var(--space-lg);
        }

        .feature-icon.blue {
            background: linear-gradient(135deg, #007AFF, #5856D6);
        }

        .feature-icon.green {
            background: linear-gradient(135deg, #34C759, #30D158);
        }

        .feature-icon.orange {
            background: linear-gradient(135deg, #FF9500, #FF3B30);
        }

        .feature-icon.purple {
            background: linear-gradient(135deg, #AF52DE, #5856D6);
        }

        .feature-title {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 600;
            margin-bottom: var(--space-sm);
            color: var(--apple-black);
        }

        .feature-description {
            font-size: 17px;
            color: var(--apple-gray-1);
            line-height: 1.5;
        }

        /* ============================================
           App Section - Main Interface
           ============================================ */
        .app-section {
            padding: var(--space-3xl) var(--space-lg);
            background: linear-gradient(180deg, var(--apple-gray-2) 0%, var(--apple-gray-3) 100%);
        }

        .app-container {
            max-width: 1440px;
            margin: 0 auto;
        }

        .app-interface {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: var(--space-md);
            height: calc(100vh - 150px);
            max-height: 800px;
            min-height: 500px;
            background: white;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 24px 80px rgba(0, 0, 0, 0.12),
                0 0 0 0.5px rgba(0, 0, 0, 0.08);
        }

        /* Sidebar Panel */
        .sidebar-panel {
            background: var(--apple-gray-3);
            display: flex;
            flex-direction: column;
            border-right: 0.5px solid rgba(0, 0, 0, 0.08);
            height: 100%;
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-header {
            padding: var(--space-sm) var(--space-md);
            border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
        }

        .sidebar-title {
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 600;
            color: var(--apple-black);
            margin-bottom: 2px;
        }

        .sidebar-subtitle {
            font-size: 10px;
            color: var(--apple-gray-1);
        }

        /* Status Pill */
        .status-pill {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 8px;
            border-radius: var(--radius-full);
            font-size: 10px;
            font-weight: 500;
            margin-top: var(--space-xs);
        }

        .status-pill.ready {
            background: rgba(52, 199, 89, 0.12);
            color: var(--apple-green);
        }

        .status-pill.processing {
            background: rgba(0, 113, 227, 0.12);
            color: var(--apple-blue);
        }

        .status-pill.complete {
            background: rgba(175, 82, 222, 0.12);
            color: var(--apple-purple);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: currentColor;
        }

        .status-pill.processing .status-dot {
            animation: pulse 1.5s ease-in-out infinite;
        }

        @keyframes pulse {

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

            50% {
                opacity: 0.5;
                transform: scale(1.2);
            }
        }

        /* Controls - Collapsible Data Panel */
        .data-panel-wrapper {
            border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
        }

        .data-panel-toggle {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 6px var(--space-sm);
            background: var(--apple-gray-2);
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            font-family: var(--font-text);
        }

        .data-panel-toggle:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        .data-panel-toggle-text {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 11px;
            font-weight: 600;
            color: var(--apple-black);
        }

        .data-panel-toggle-icon {
            font-size: 10px;
            transition: transform var(--transition-fast);
        }

        .data-panel-wrapper.collapsed .data-panel-toggle-icon {
            transform: rotate(-90deg);
        }

        .data-panel-content {
            max-height: 220px;
            overflow: hidden;
            transition: max-height var(--transition-medium);
        }

        .data-panel-wrapper.collapsed .data-panel-content {
            max-height: 0;
        }

        .sidebar-controls {
            padding: 4px 6px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .control-btn {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 4px 6px;
            background: white;
            border: 0.5px solid rgba(0, 0, 0, 0.08);
            border-radius: 6px;
            font-family: var(--font-text);
            font-size: 11px;
            font-weight: 500;
            color: var(--apple-black);
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: left;
        }

        .control-btn:hover {
            background: var(--apple-gray-2);
            transform: translateY(-1px);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .control-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none;
        }

        .control-btn.primary {
            background: var(--apple-blue);
            color: white;
            border-color: transparent;
        }

        .control-btn.primary:hover:not(:disabled) {
            background: var(--apple-blue-hover);
        }

        .control-btn-icon {
            width: 20px;
            height: 20px;
            border-radius: 4px;
            background: var(--apple-gray-2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            flex-shrink: 0;
        }

        .control-btn.primary .control-btn-icon {
            background: rgba(255, 255, 255, 0.2);
        }

        .control-btn-text {
            flex: 1;
            min-width: 0;
        }

        .control-btn-label {
            display: block;
            font-weight: 500;
            font-size: 10px;
        }

        .control-btn-desc {
            display: block;
            font-size: 9px;
            opacity: 0.7;
            margin-top: 0;
        }

        /* Info Button */
        .info-btn {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--apple-gray-2);
            border: none;
            color: var(--apple-gray-1);
            font-size: 10px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .info-btn:hover {
            background: var(--apple-blue);
            color: white;
        }

        .control-btn.primary .info-btn {
            background: rgba(255, 255, 255, 0.2);
            color: white;
        }

        .control-btn.primary .info-btn:hover {
            background: rgba(255, 255, 255, 0.4);
        }

        /* Capacity Indicator */
        .capacity-indicator {
            padding: 8px 6px;
            border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
        }

        .capacity-status {
            padding: 10px 12px;
            border-radius: 10px;
            transition: all 0.3s ease;
        }

        .capacity-status.ok {
            background: linear-gradient(135deg, rgba(52, 199, 89, 0.1), rgba(48, 209, 88, 0.1));
            border: 1px solid rgba(52, 199, 89, 0.3);
        }

        .capacity-status.warning {
            background: linear-gradient(135deg, rgba(255, 149, 0, 0.1), rgba(255, 159, 10, 0.1));
            border: 1px solid rgba(255, 149, 0, 0.3);
        }

        .capacity-status.error {
            background: linear-gradient(135deg, rgba(255, 59, 48, 0.1), rgba(255, 69, 58, 0.1));
            border: 1px solid rgba(255, 59, 48, 0.3);
        }

        .capacity-header {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 8px;
        }

        .capacity-icon {
            font-size: 14px;
        }

        .capacity-title {
            font-size: 12px;
            font-weight: 600;
            color: var(--apple-black);
        }

        .capacity-details {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            margin-bottom: 6px;
        }

        .capacity-item {
            text-align: center;
        }

        .capacity-label {
            font-size: 10px;
            color: var(--apple-gray-1);
            display: block;
        }

        .capacity-value {
            font-size: 20px;
            font-weight: 700;
            color: var(--apple-black);
        }

        .capacity-divider {
            color: var(--apple-gray-1);
            font-size: 16px;
        }

        .capacity-message {
            font-size: 11px;
            text-align: center;
            padding: 4px 8px;
            border-radius: 6px;
            margin-top: 4px;
        }

        .capacity-status.ok .capacity-message {
            color: #34C759;
            background: rgba(52, 199, 89, 0.1);
        }

        .capacity-status.warning .capacity-message {
            color: #FF9500;
            background: rgba(255, 149, 0, 0.1);
        }

        .capacity-status.error .capacity-message {
            color: #FF3B30;
            background: rgba(255, 59, 48, 0.1);
        }

        .capacity-actions {
            display: flex;
            gap: 6px;
            margin-top: 8px;
        }

        .capacity-action-btn {
            flex: 1;
            padding: 6px 8px;
            border: none;
            border-radius: 6px;
            font-size: 10px;
            font-weight: 600;
            cursor: pointer;
            background: var(--apple-blue);
            color: white;
            transition: all 0.2s;
        }

        .capacity-action-btn:hover {
            transform: scale(1.02);
            filter: brightness(1.1);
        }

        .capacity-action-btn.warning {
            background: var(--apple-orange);
        }

        /* Optimize Section - Always Visible */
        .optimize-section {
            padding: 8px 6px;
            border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
            background: linear-gradient(135deg, rgba(0, 113, 227, 0.05), rgba(175, 82, 222, 0.05));
        }

        .optimize-section .optimize-main-btn {
            width: 100%;
            padding: 10px 12px;
            font-size: 13px;
            border-radius: 10px;
            box-shadow: 0 2px 8px rgba(0, 113, 227, 0.2);
        }

        .optimize-section .optimize-main-btn:not(:disabled) {
            animation: pulseGlow 2s ease-in-out infinite;
        }

        .optimize-section .optimize-main-btn .control-btn-icon {
            width: 28px;
            height: 28px;
            font-size: 16px;
        }

        .optimize-section .optimize-main-btn .control-btn-label {
            font-size: 13px;
            font-weight: 600;
        }

        .optimize-section .optimize-main-btn .control-btn-desc {
            font-size: 10px;
        }

        @keyframes pulseGlow {

            0%,
            100% {
                box-shadow: 0 2px 8px rgba(0, 113, 227, 0.3);
            }

            50% {
                box-shadow: 0 4px 20px rgba(0, 113, 227, 0.5);
            }
        }

        /* Stats Grid - Compact */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 4px;
            padding: 6px;
            border-top: 0.5px solid rgba(0, 0, 0, 0.08);
        }

        .stat-card {
            background: white;
            padding: 6px 4px;
            border-radius: 6px;
            border: 0.5px solid rgba(0, 0, 0, 0.04);
            text-align: center;
        }

        .stat-label {
            font-size: 8px;
            font-weight: 500;
            color: var(--apple-gray-1);
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .stat-value {
            font-family: var(--font-display);
            font-size: 14px;
            font-weight: 600;
            color: var(--apple-black);
            margin-top: 2px;
        }

        .stat-value.highlight {
            color: var(--apple-blue);
        }

        /* Activity Log - Compact */
        .activity-log {
            flex: 1;
            min-height: 100px;
            background: var(--apple-black);
            margin: 6px;
            margin-top: 0;
            border-radius: 8px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .activity-header {
            padding: 6px 8px;
            border-bottom: 0.5px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .activity-header span {
            font-size: 10px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.6);
        }

        .activity-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--apple-green);
        }

        .activity-content {
            flex: 1;
            overflow-y: auto;
            padding: 6px 8px;
            font-family: var(--font-mono);
            font-size: 10px;
            line-height: 1.6;
        }

        .activity-content::-webkit-scrollbar {
            width: 6px;
        }

        .activity-content::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 3px;
        }

        .log-entry {
            display: flex;
            gap: var(--space-sm);
            color: rgba(255, 255, 255, 0.5);
            opacity: 0;
            animation: logFadeIn 0.3s ease forwards;
        }

        @keyframes logFadeIn {
            to {
                opacity: 1;
            }
        }

        .log-entry .timestamp {
            color: rgba(255, 255, 255, 0.3);
            min-width: 70px;
        }

        .log-entry.info {
            color: var(--apple-teal);
        }

        .log-entry.success {
            color: var(--apple-green);
        }

        .log-entry.warn {
            color: var(--apple-orange);
        }

        .log-entry.error {
            color: var(--apple-red);
        }

        .log-entry.ai {
            color: var(--apple-purple);
        }

        .log-entry.system {
            color: rgba(255, 255, 255, 0.4);
            font-style: italic;
        }

        /* Map Container */
        .map-container {
            position: relative;
            background: var(--apple-gray-2);
        }

        #map {
            width: 100%;
            height: 100%;
        }

        .mapboxgl-ctrl-logo {
            display: none !important;
        }

        /* Map Overlay Elements */
        .map-overlay {
            position: absolute;
            top: var(--space-lg);
            right: var(--space-lg);
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }

        .map-control-btn {
            width: 44px;
            height: 44px;
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 0.5px solid rgba(0, 0, 0, 0.08);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-fast);
            color: var(--apple-black);
        }

        .map-control-btn:hover {
            background: white;
            transform: scale(1.05);
        }

        /* Optimization Progress Overlay */
        .progress-overlay {
            position: absolute;
            inset: 0;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: var(--space-lg);
            z-index: 100;
        }

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

        .progress-spinner {
            width: 60px;
            height: 60px;
            border: 3px solid var(--apple-gray-2);
            border-top-color: var(--apple-blue);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

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

        .progress-text {
            font-family: var(--font-display);
            font-size: 21px;
            font-weight: 500;
            color: var(--apple-black);
            text-align: center;
        }

        .progress-subtext {
            font-size: 15px;
            color: var(--apple-gray-1);
            margin-top: -8px;
        }

        .progress-bar-container {
            width: 280px;
            height: 4px;
            background: var(--apple-gray-2);
            border-radius: 2px;
            overflow: hidden;
        }

        .progress-bar-fill {
            height: 100%;
            width: 0%;
            background: linear-gradient(90deg, var(--apple-blue), var(--apple-purple));
            border-radius: 2px;
            transition: width 0.3s ease;
        }

        /* Results Panel - Right Side Drawer */
        .results-panel {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 380px;
            max-width: 90vw;
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-left: 0.5px solid rgba(0, 0, 0, 0.08);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            box-shadow: -12px 0 40px rgba(0, 0, 0, 0.12);
            transform: translateX(100%);
            transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
            z-index: 100;
        }

        .results-panel.active {
            transform: translateX(0);
        }

        /* Toggle Button - Always visible when there are results */
        .results-toggle {
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 32px;
            height: 72px;
            background: linear-gradient(135deg, var(--apple-blue), var(--apple-purple));
            border: none;
            border-radius: 8px 0 0 8px;
            cursor: pointer;
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            box-shadow: -4px 0 12px rgba(0, 0, 0, 0.15);
            transition: all 0.3s ease;
            z-index: 101;
        }

        .results-toggle.visible {
            display: flex;
        }

        .results-toggle:hover {
            width: 40px;
            background: linear-gradient(135deg, var(--apple-purple), var(--apple-blue));
        }

        .results-toggle svg {
            color: white;
            transition: transform 0.3s ease;
        }

        .results-toggle.open svg {
            transform: rotate(180deg);
        }

        .results-toggle-text {
            writing-mode: vertical-rl;
            text-orientation: mixed;
            font-size: 11px;
            font-weight: 600;
            color: white;
            letter-spacing: 0.5px;
        }

        .results-header {
            padding: var(--space-md) var(--space-lg);
            border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
        }

        .results-title {
            font-family: var(--font-display);
            font-size: 17px;
            font-weight: 600;
        }

        .results-close {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.06);
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
        }

        .results-close:hover {
            background: rgba(0, 0, 0, 0.1);
        }

        .results-content {
            padding: var(--space-md);
            overflow-y: auto;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
        }

        .route-card {
            flex-shrink: 0;
            width: 260px;
            background: white;
            border-radius: var(--radius-md);
            padding: var(--space-md);
            border: 0.5px solid rgba(0, 0, 0, 0.08);
            transition: all var(--transition-fast);
        }

        .route-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
        }

        .route-card-header {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            margin-bottom: var(--space-sm);
        }

        .route-color {
            width: 12px;
            height: 12px;
            border-radius: 4px;
        }

        .route-name {
            font-weight: 600;
            font-size: 15px;
        }

        .route-badge {
            margin-left: auto;
            font-size: 10px;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: var(--radius-full);
            background: rgba(52, 199, 89, 0.12);
            color: var(--apple-green);
        }

        .route-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-sm);
            margin-top: var(--space-sm);
        }

        .route-stat {
            text-align: center;
        }

        .route-stat-value {
            font-family: var(--font-display);
            font-size: 17px;
            font-weight: 600;
        }

        .route-stat-label {
            font-size: 10px;
            color: var(--apple-gray-1);
            text-transform: uppercase;
        }

        .route-animate-btn {
            width: 100%;
            margin-top: var(--space-md);
            padding: var(--space-sm);
            background: var(--apple-gray-2);
            border: none;
            border-radius: var(--radius-sm);
            font-family: var(--font-text);
            font-size: 13px;
            font-weight: 500;
            color: var(--apple-blue);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .route-animate-btn:hover {
            background: var(--apple-blue);
            color: white;
        }

        .route-animate-btn.error {
            color: var(--apple-red);
        }

        .route-animate-btn.error:hover {
            background: var(--apple-red);
            color: white;
        }

        /* Control Button Loaded State */
        .control-btn.loaded {
            border-color: var(--apple-green);
            background: rgba(52, 199, 89, 0.08);
        }

        .control-btn.loaded .control-btn-icon {
            background: rgba(52, 199, 89, 0.15);
        }

        .control-btn.loaded .control-btn-desc {
            color: var(--apple-green);
        }

        /* CSV Upload Zones */
        .upload-section {
            padding: var(--space-md);
            border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
        }

        .upload-section-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--apple-gray-1);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: var(--space-md);
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }

        .upload-grid {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }

        .upload-zone {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            padding: var(--space-md);
            background: white;
            border: 1px dashed rgba(0, 0, 0, 0.15);
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .upload-zone:hover {
            border-color: var(--apple-blue);
            background: rgba(0, 113, 227, 0.04);
        }

        .upload-zone.loaded {
            border-style: solid;
            border-color: var(--apple-green);
            background: rgba(52, 199, 89, 0.06);
        }

        .upload-zone-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            background: var(--apple-gray-2);
        }

        .upload-zone.loaded .upload-zone-icon {
            background: rgba(52, 199, 89, 0.15);
        }

        .upload-zone-text {
            flex: 1;
        }

        .upload-zone-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--apple-black);
        }

        .upload-zone-hint {
            font-size: 11px;
            color: var(--apple-gray-1);
        }

        .upload-zone-status {
            font-size: 12px;
            color: var(--apple-green);
            font-weight: 500;
        }

        .info-btn {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--apple-gray-2);
            border: none;
            font-size: 12px;
            font-weight: 600;
            color: var(--apple-gray-1);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .info-btn:hover {
            background: var(--apple-blue);
            color: white;
        }

        /* Info Modal */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(8px);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 10000;
        }

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

        .modal-content {
            background: white;
            border-radius: var(--radius-xl);
            max-width: 500px;
            width: 90%;
            max-height: 80vh;
            overflow-y: auto;
            box-shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
        }

        .modal-header {
            padding: var(--space-lg);
            border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .modal-title {
            font-family: var(--font-display);
            font-size: 21px;
            font-weight: 600;
        }

        .modal-close {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--apple-gray-2);
            border: none;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .modal-close:hover {
            background: var(--apple-gray-1);
            color: white;
        }

        .modal-body {
            padding: var(--space-lg);
        }

        .modal-body table {
            width: 100%;
            border-collapse: collapse;
            font-size: 13px;
        }

        .modal-body th,
        .modal-body td {
            padding: var(--space-sm) var(--space-md);
            text-align: left;
            border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
        }

        .modal-body th {
            font-weight: 600;
            background: var(--apple-gray-2);
        }

        .modal-body code {
            background: var(--apple-gray-2);
            padding: 2px 6px;
            border-radius: 4px;
            font-family: var(--font-mono);
            font-size: 11px;
        }

        /* Algorithm Comparison Card */
        .algorithm-card {
            background: var(--apple-gray-2);
            border-radius: var(--radius-sm);
            padding: var(--space-sm);
            margin-top: var(--space-sm);
        }

        .algorithm-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-xs) 0;
            font-size: 11px;
        }

        .algorithm-row.winner {
            color: var(--apple-green);
            font-weight: 600;
        }

        .algorithm-name {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
        }

        /* ============================================
           Responsive Design
           ============================================ */
        @media (max-width: 1024px) {
            .app-interface {
                grid-template-columns: 1fr;
                min-height: auto;
            }

            .sidebar-panel {
                border-right: none;
                border-bottom: 0.5px solid rgba(0, 0, 0, 0.08);
            }

            .map-container {
                min-height: 500px;
            }

            .navbar-links {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .hero-actions {
                flex-direction: column;
                width: 100%;
                max-width: 320px;
            }

            .hero-actions .btn {
                width: 100%;
            }

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

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

        /* ============================================
           Footer
           ============================================ */
        .footer {
            background: var(--apple-gray-2);
            padding: var(--space-3xl) var(--space-lg);
            border-top: 0.5px solid rgba(0, 0, 0, 0.08);
        }

        .footer-content {
            max-width: 1024px;
            margin: 0 auto;
            text-align: center;
        }

        .footer-text {
            font-size: 12px;
            color: var(--apple-gray-1);
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: var(--space-lg);
            margin-top: var(--space-md);
        }

        .footer-link {
            font-size: 12px;
            color: var(--apple-blue);
            text-decoration: none;
        }

        .footer-link:hover {
            text-decoration: underline;
        }