* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --color-sky-50: #f0f9ff;
            --color-sky-400: #38bdf8;
            --color-sky-500: #0ea5e9;
            --color-sky-600: #0284c7;
            --color-cyan-400: #22d3ee;
            --color-cyan-500: #06b6d4;
            --color-emerald-500: #10b981;
            --color-slate-50: #f8fafc;
            --color-slate-100: #f1f5f9;
            --color-slate-200: #e2e8f0;
            --color-slate-300: #cbd5e1;
            --color-slate-600: #475569;
            --color-slate-700: #334155;
            --color-slate-800: #1e293b;
            --color-slate-900: #0f172a;
            --color-white: #ffffff;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: var(--color-slate-900);
            background-color: var(--color-slate-50);
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        body.dark-mode {
            background-color: var(--color-slate-900);
            color: var(--color-slate-50);
        }

        /* Header */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-slate-700);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }

        .header-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 64px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            text-decoration: none;
            transition: transform 0.3s ease;
        }

        .logo:hover {
            transform: scale(1.05);
        }

        .logo svg {
            width: 32px;
            height: 32px;
            color: var(--color-sky-400);
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-white);
        }

        .header-actions {
            display: none;
            align-items: center;
            gap: 1rem;
        }

        @media (min-width: 768px) {
            .header-actions {
                display: flex;
            }
        }

        .mobile-menu-button {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0.5rem;
            background: none;
            border: none;
            color: var(--color-white);
            cursor: pointer;
            border-radius: 0.5rem;
            transition: background-color 0.2s ease;
        }

        .mobile-menu-button:hover {
            background-color: var(--color-slate-800);
        }

        .mobile-menu-button svg {
            width: 24px;
            height: 24px;
        }

        @media (min-width: 768px) {
            .mobile-menu-button {
                display: none;
            }
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(15, 23, 42, 0.98);
            backdrop-filter: blur(8px);
            z-index: 999;
            overflow-y: auto;
            padding: 1.5rem;
        }

        .mobile-menu.active {
            display: block;
            height: fit-content;
        }

        @media (min-width: 768px) {
            .mobile-menu {
                display: none !important;
            }
        }

        .mobile-menu-content {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 400px;
            margin: 0 auto;
        }

        .mobile-menu-section {
            padding: 1rem 0;
            border-bottom: 1px solid var(--color-slate-800);
        }

        .mobile-menu-section:last-child {
            border-bottom: none;
        }

        .mobile-menu-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-slate-400);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.75rem;
        }

        .mobile-menu .btn {
            width: 100%;
            justify-content: center;
        }

        .mobile-lang-buttons {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.5rem;
        }

        .mobile-lang-button {
            padding: 0.75rem;
            background-color: var(--color-slate-800);
            border: 1px solid var(--color-slate-700);
            border-radius: 0.5rem;
            color: var(--color-slate-300);
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .mobile-lang-button:hover {
            background-color: var(--color-slate-700);
        }

        .mobile-lang-button.active {
            background-color: var(--color-sky-600);
            border-color: var(--color-sky-600);
            color: var(--color-white);
        }

        .icon-button {
            padding: 0.5rem;
            border-radius: 0.5rem;
            background: none;
            border: none;
            color: var(--color-slate-300);
            cursor: pointer;
            transition: background-color 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .icon-button:hover {
            background-color: var(--color-slate-800);
        }

        .icon-button svg {
            width: 20px;
            height: 20px;
        }

        .language-selector {
            position: relative;
        }

        .language-button {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.5rem;
            border-radius: 0.5rem;
            background: none;
            border: none;
            color: var(--color-slate-300);
            cursor: pointer;
            font-size: 0.875rem;
            transition: background-color 0.2s ease;
        }

        .language-button:hover {
            background-color: var(--color-slate-800);
        }

        .language-dropdown {
            display: none;
            position: absolute;
            right: 0;
            top: calc(100% + 0.5rem);
            background-color: var(--color-slate-800);
            border-radius: 0.5rem;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            border: 1px solid var(--color-slate-700);
            min-width: 150px;
            overflow: hidden;
        }

        .language-dropdown.active {
            display: block;
        }

        .language-option {
            width: 100%;
            padding: 0.75rem 1rem;
            background: none;
            border: none;
            color: var(--color-slate-300);
            text-align: left;
            cursor: pointer;
            font-size: 0.875rem;
            transition: background-color 0.2s ease;
        }

        .language-option:hover {
            background-color: var(--color-slate-700);
        }

        .language-option.active {
            background-color: var(--color-slate-700);
            color: var(--color-sky-400);
        }

        .btn {
            padding: 0.75rem 1.5rem;
            border-radius: 0.5rem;
            font-weight: 500;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.2s ease;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-sky-500), var(--color-cyan-500));
            color: var(--color-white);
            box-shadow: 0 4px 6px -1px rgba(14, 165, 233, 0.2);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 15px -3px rgba(14, 165, 233, 0.3);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--color-slate-300);
            border: 1px solid var(--color-slate-600);
        }

        .btn-secondary:hover {
            background-color: var(--color-slate-700);
        }

        /* Hero Section */
        .hero {
            position: relative;
            overflow: hidden;
            padding: 4rem 1.5rem;
        }

        .hero-background {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, var(--color-slate-50), var(--color-sky-50), var(--color-cyan-50));
        }

        body.dark-mode .hero-background {
            background: linear-gradient(135deg, var(--color-slate-900), var(--color-slate-800));
        }

        .hero-grid {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(to right, rgba(128, 128, 128, 0.07) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(128, 128, 128, 0.07) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        .hero-container {
            position: relative;
            max-width: 1280px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            border-radius: 9999px;
            background-color: rgba(255, 255, 255, 0.6);
            backdrop-filter: blur(8px);
            border: 1px solid var(--color-slate-200);
            margin-bottom: 2rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-slate-700);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
        }

        body.dark-mode .hero-badge {
            background-color: rgba(30, 41, 59, 0.6);
            border-color: var(--color-slate-700);
            color: var(--color-slate-300);
        }

        .hero-title {
            font-size: clamp(2rem, 5vw, 4.5rem);
            font-weight: 700;
            line-height: 1.1;
            margin-bottom: 1.5rem;
            color: var(--color-slate-900);
        }

        body.dark-mode .hero-title {
            color: var(--color-slate-100);
        }

        .hero-subtitle {
            font-size: clamp(1rem, 2vw, 1.5rem);
            color: var(--color-slate-600);
            margin-bottom: 2.5rem;
            max-width: 48rem;
            margin-left: auto;
            margin-right: auto;
        }

        body.dark-mode .hero-subtitle {
            color: var(--color-slate-400);
        }

        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
            margin-bottom: 3rem;
            z-index: 10;
            position: relative;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: center;
            font-size: 0.875rem;
            color: var(--color-slate-600);
        }

        body.dark-mode .hero-trust {
            color: var(--color-slate-400);
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .trust-icon {
            width: 16px;
            height: 16px;
            color: var(--color-emerald-500);
        }

        /* Dashboard Preview */
        .dashboard-preview {
            margin-top: 4rem;
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            background-color: var(--color-slate-50);
        }

        .dashboard-glow {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(56, 189, 248, 0.2), rgba(34, 211, 238, 0.2));
            filter: blur(60px);
        }

        .dashboard-card {
            position: relative;
            background-color: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-radius: 1rem;
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            border: 1px solid rgba(226, 232, 240, 0.5);
            padding: 3rem;
        }

        body.dark-mode .dashboard-card {
            background-color: rgba(30, 41, 59, 0.8);
            border-color: rgba(51, 65, 85, 0.5);
        }

        .dashboard-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 1024px) {
            .dashboard-grid {
                grid-template-columns: 1fr 2fr;
            }
        }

        .qr-display {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .qr-wrapper {
            padding: 1.5rem;
            background: linear-gradient(135deg, var(--color-slate-50), var(--color-slate-100));
            border-radius: 0.75rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }

        body.dark-mode .qr-wrapper {
            background: linear-gradient(135deg, var(--color-slate-700), var(--color-slate-800));
        }

        .qr-code {
            width: 160px;
            height: 160px;
            background-color: var(--color-white);
            border-radius: 0.5rem;
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        body.dark-mode .qr-code {
            background-color: var(--color-slate-900);
        }

        .qr-pattern {
            width: 128px;
            height: 128px;
            background-image: linear-gradient(to right, #000 2px, transparent 2px),
                linear-gradient(to bottom, #000 2px, transparent 2px);
            background-size: 8px 8px;
        }

        .analytics-panel {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

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

        .analytics-title {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--color-slate-900);
        }

        body.dark-mode .analytics-title {
            color: var(--color-slate-100);
        }

        .status-badge {
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            background-color: rgba(16, 185, 129, 0.1);
            color: var(--color-emerald-500);
            font-size: 0.75rem;
            font-weight: 500;
        }

        body.dark-mode .status-badge {
            background-color: rgba(16, 185, 129, 0.2);
        }

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

        .stat-card {
            padding: 1rem;
            background-color: var(--color-slate-50);
            border-radius: 0.5rem;
            border: 1px solid var(--color-slate-200);
        }

        body.dark-mode .stat-card {
            background-color: rgba(51, 65, 85, 0.5);
            border-color: var(--color-slate-600);
        }

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

        .stat-icon {
            width: 16px;
            height: 16px;
            color: var(--color-sky-500);
        }

        .stat-label {
            font-size: 0.75rem;
            color: var(--color-slate-600);
        }

        body.dark-mode .stat-label {
            color: var(--color-slate-400);
        }

        .stat-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-slate-900);
        }

        body.dark-mode .stat-value {
            color: var(--color-slate-100);
        }

        .stat-change {
            font-size: 0.75rem;
            color: var(--color-emerald-500);
            margin-top: 0.25rem;
        }

        .stat-detail {
            font-size: 0.75rem;
            color: var(--color-slate-600);
            margin-top: 0.25rem;
        }

        body.dark-mode .stat-detail {
            color: var(--color-slate-400);
        }

        .stat-card.featured {
            grid-column: span 2;
            background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(6, 182, 212, 0.05));
            border-color: var(--color-sky-200);
        }

        body.dark-mode .stat-card.featured {
            background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(6, 182, 212, 0.1));
            border-color: var(--color-sky-800);
        }

        .stat-card.featured .stat-value {
            font-size: 0.875rem;
            font-weight: 500;
        }

        /* Stats Section */
        .stats-section {
            padding: 4rem 1.5rem;
            background-color: var(--color-white);
            border-top: 1px solid var(--color-slate-200);
            border-bottom: 1px solid var(--color-slate-200);
        }

        body.dark-mode .stats-section {
            background-color: var(--color-slate-900);
            border-color: var(--color-slate-800);
        }

        .stats-container {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }

        @media (min-width: 1024px) {
            .stats-container {
                grid-template-columns: repeat(4, 1fr);
            }
        }

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

        .stat-item-icon {
            width: 32px;
            height: 32px;
            margin: 0 auto 0.75rem;
            color: var(--color-sky-500);
        }

        .stat-item-value {
            font-size: 1.875rem;
            font-weight: 700;
            color: var(--color-slate-900);
            margin-bottom: 0.25rem;
        }

        body.dark-mode .stat-item-value {
            color: var(--color-slate-100);
        }

        .stat-item-label {
            font-size: 0.875rem;
            color: var(--color-slate-600);
        }

        body.dark-mode .stat-item-label {
            color: var(--color-slate-400);
        }

        /* Features Section */
        .features-section {
            padding: 5rem 1.5rem;
            background-color: var(--color-slate-50);
        }

        body.dark-mode .features-section {
            background-color: var(--color-slate-900);
        }

        .features-container {
            max-width: 1280px;
            margin: 0 auto;
        }

        .features-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .features-title {
            font-size: clamp(1.875rem, 4vw, 3rem);
            font-weight: 700;
            color: var(--color-slate-900);
            margin-bottom: 1rem;
        }

        body.dark-mode .features-title {
            color: var(--color-slate-100);
        }

        .features-subtitle {
            font-size: 1.125rem;
            color: var(--color-slate-600);
            max-width: 42rem;
            margin: 0 auto;
        }

        body.dark-mode .features-subtitle {
            color: var(--color-slate-400);
        }

        .features-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 768px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .feature-card {
            padding: 2rem;
            background-color: var(--color-white);
            border-radius: 1rem;
            border: 1px solid var(--color-slate-200);
            transition: all 0.3s ease;
        }

        .feature-card:hover {
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            border-color: var(--color-sky-200);
            transform: translateY(-4px);
        }

        body.dark-mode .feature-card {
            background-color: var(--color-slate-800);
            border-color: var(--color-slate-700);
        }

        body.dark-mode .feature-card:hover {
            border-color: var(--color-sky-800);
        }

        .feature-icon-wrapper {
            width: 48px;
            height: 48px;
            background-color: rgba(14, 165, 233, 0.1);
            border-radius: 0.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            transition: transform 0.3s ease;
        }

        .feature-card:hover .feature-icon-wrapper {
            transform: scale(1.1);
        }

        body.dark-mode .feature-icon-wrapper {
            background-color: rgba(14, 165, 233, 0.2);
        }

        .feature-icon {
            width: 24px;
            height: 24px;
            color: var(--color-sky-500);
        }

        .feature-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-slate-900);
            margin-bottom: 0.75rem;
        }

        body.dark-mode .feature-title {
            color: var(--color-slate-100);
        }

        .feature-description {
            color: var(--color-slate-600);
            line-height: 1.6;
        }

        body.dark-mode .feature-description {
            color: var(--color-slate-400);
        }

        /* CTA Section */
        .cta-section {
            padding: 5rem 1.5rem;
            background: linear-gradient(135deg, var(--color-sky-500), var(--color-cyan-500));
        }

        body.dark-mode .cta-section {
            background: linear-gradient(135deg, var(--color-sky-600), var(--color-cyan-600));
        }

        .cta-container {
            max-width: 56rem;
            margin: 0 auto;
            text-align: center;
        }

        .cta-title {
            font-size: clamp(1.875rem, 4vw, 3rem);
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 1.5rem;
        }

        .cta-subtitle {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: rgba(240, 249, 255, 0.9);
            margin-bottom: 2rem;
        }

        .btn-cta {
            background-color: var(--color-white);
            color: var(--color-sky-600);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            border: 2px solid rgba(14, 165, 233, 0.2);
        }

        .btn-cta:hover {
            background-color: var(--color-sky-50);
            color: var(--color-sky-700);
            box-shadow: 0 25px 30px -5px rgba(0, 0, 0, 0.15);
        }

        /* Footer */
        footer {
            background-color: var(--color-slate-900);
            color: var(--color-slate-300);
            padding: 3rem 1.5rem 1.5rem;
        }

        .footer-container {
            max-width: 1280px;
            margin: 0 auto;
        }

        .footer-content {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        @media (min-width: 768px) {
            .footer-content {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.75rem;
        }

        .footer-brand svg {
            width: 28px;
            height: 28px;
            color: var(--color-sky-400);
        }

        .footer-brand-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-white);
        }

        .footer-description {
            color: var(--color-slate-300);
            line-height: 1.6;
        }

        .footer-column h4 {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-white);
            margin-bottom: 1rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .footer-links a {
            color: var(--color-slate-300);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--color-sky-400);
        }

        .footer-bottom {
            padding-top: 2rem;
            border-top: 1px solid var(--color-slate-800);
            text-align: center;
            font-size: 0.875rem;
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

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

        .animate-fade-in-up {
            animation: fadeInUp 0.6s ease-out;
        }

        /* Utility Classes */
        .hidden {
            display: none !important;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .header-container {
                padding: 0 1rem;
            }

            .hero {
                padding: 2rem 1rem;
            }

            .dashboard-card {
                padding: 1.5rem;
            }

            .stats-section,
            .features-section,
            .cta-section {
                padding: 3rem 1rem;
            }
        }