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

        /* ===== DESIGN SYSTEM ===== */
        :root {
            /* Colors */
            --bg-primary: #051C2C;
            --text-primary: #FFFFFF;
            --text-secondary: rgba(255, 255, 255, 0.75);
            --text-muted: rgba(255, 255, 255, 0.5);
            --accent: #00D4FF;
            --accent-hover: #33DFFF;
            --accent-glow: rgba(0, 212, 255, 0.25);
            --border: rgba(255, 255, 255, 0.08);
            --card-bg: rgba(255, 255, 255, 0.03);
            --card-hover: rgba(255, 255, 255, 0.06);

            /* Typography */
            --font-serif: 'Playfair Display', Georgia, serif;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

            /* Spacing (8pt grid) */
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 24px;
            --space-lg: 32px;
            --space-xl: 48px;
            --space-2xl: 64px;
            --space-3xl: 80px;
            --space-4xl: 120px;

            /* Transitions */
            --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
            --duration-fast: 0.2s;
            --duration-normal: 0.4s;
            --duration-slow: 0.6s;
        }

        /* ===== GLOBAL STYLES ===== */
        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        /* ===== ANIMATED BACKGROUND ===== */
        .bg-layer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
        }

        /* Layer 1: Radial vignette */
        .bg-vignette {
            background:
                radial-gradient(ellipse 80% 50% at 20% 30%, rgba(0, 212, 255, 0.04) 0%, transparent 60%),
                radial-gradient(ellipse 60% 40% at 80% 70%, rgba(0, 212, 255, 0.03) 0%, transparent 50%);
        }

        /* Layer 2: Animated SVG lines */
        .bg-lines {
            opacity: 0.15;
        }

        .bg-lines svg {
            width: 100%;
            height: 100%;
            overflow: visible;
        }

        .bg-lines path {
            fill: none;
            stroke: var(--accent);
            stroke-width: 0.6;
            animation: lineDrift 10s linear infinite;
        }

        .bg-lines path:nth-child(2) {
            animation-delay: -2s;
            animation-duration: 12.5s;
        }

        .bg-lines path:nth-child(3) {
            animation-delay: -5s;
            animation-duration: 15s;
        }

        .bg-lines path:nth-child(4) {
            animation-delay: -7s;
            animation-duration: 11s;
        }

        @keyframes lineDrift {
            0% {
                transform: translateX(0);
            }

            50% {
                transform: translateX(-3%);
            }

            100% {
                transform: translateX(0);
            }
        }

        /* Reduced motion */
        @media (prefers-reduced-motion: reduce) {
            .bg-lines path {
                animation: none;
            }

            .reveal {
                opacity: 1;
                transform: none;
            }
        }

        /* ===== LAYOUT ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-lg);
            position: relative;
            z-index: 1;
        }

        section {
            position: relative;
            z-index: 1;
        }

        /* ===== A. HEADER ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: var(--space-sm) 0;
            background: rgba(5, 28, 44, 0.9);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            transition: padding var(--duration-fast) var(--ease-out);
        }

        .header.scrolled {
            padding: var(--space-xs) 0;
        }

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

        .logo {
            font-family: var(--font-sans);
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            text-decoration: none;
            letter-spacing: -0.3px;
        }

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

        .nav-link {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: color var(--duration-fast) var(--ease-out);
        }

        .nav-link:hover {
            color: var(--text-primary);
        }

        .lang-switch {
            display: flex;
            gap: 4px;
            background: var(--card-bg);
            padding: 4px;
            border-radius: 8px;
            border: 1px solid var(--border);
        }

        .lang-btn {
            padding: 6px 12px;
            background: transparent;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
            transition: all var(--duration-fast) var(--ease-out);
        }

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

        .lang-btn:hover:not(.active) {
            color: var(--text-primary);
        }


        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            cursor: pointer;
            border: none;
            transition: all var(--duration-normal) var(--ease-out);
        }

        .btn-primary {
            background: var(--accent);
            color: var(--bg-primary);
            box-shadow: 0 4px 20px var(--accent-glow);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px var(--accent-glow);
        }

        .btn-secondary {
            background: var(--card-bg);
            color: var(--text-primary);
            border: 1px solid var(--border);
        }

        .btn-secondary:hover {
            background: var(--card-hover);
            border-color: rgba(0, 212, 255, 0.3);
        }

        /* Mobile nav */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 24px;
            cursor: pointer;
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .header .btn-primary {
                padding: 10px 16px;
                font-size: 13px;
            }

            .nav {
                gap: var(--space-sm);
            }
        }

        @media (max-width: 480px) {
            .header .btn-primary {
                display: none;
            }

            .container {
                padding: 0 var(--space-sm);
            }
        }

        /* ===== B. HERO ===== */
        .hero {
            padding: var(--space-4xl) 0 var(--space-3xl);
            text-align: center;
        }

        .hero h1 {
            font-family: var(--font-serif);
            font-size: clamp(44px, 8vw, 76px);
            font-weight: 700;
            line-height: 1.08;
            letter-spacing: -0.03em;
            margin-bottom: var(--space-md);
            color: var(--text-primary);
        }

        .hero-subtitle {
            font-size: clamp(17px, 2.5vw, 21px);
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto var(--space-xl);
            line-height: 1.6;
        }

        .hero-cta {
            display: flex;
            gap: var(--space-sm);
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: var(--space-3xl);
        }

        .hero-cta .btn {
            padding: 16px 32px;
            font-size: 16px;
        }

        .proof-row {
            display: flex;
            justify-content: center;
            gap: var(--space-lg);
            flex-wrap: wrap;
        }

        .proof-item {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            display: flex;
            align-items: center;
            gap: var(--space-xs);
        }

        .proof-item::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
        }

        /* ===== C. TRUST BAR ===== */
        .trust-bar {
            padding: var(--space-xl) 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .trust-bar-inner {
            display: flex;
            justify-content: center;
            gap: var(--space-xl);
            flex-wrap: wrap;
        }

        .trust-item {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1.2px;
        }

        @media (max-width: 768px) {
            .trust-bar-inner {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: var(--space-sm);
                text-align: center;
            }

            .trust-item {
                font-size: 11px;
                letter-spacing: 0.8px;
            }
        }

        @media (max-width: 480px) {
            .trust-bar {
                padding: var(--space-lg) 0;
            }

            .trust-item {
                font-size: 10px;
            }
        }

        /* ===== D. COMPARISON ===== */
        .comparison {
            padding: var(--space-4xl) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--space-2xl);
        }

        .section-header h2 {
            font-family: var(--font-serif);
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 600;
            line-height: 1.15;
            margin-bottom: var(--space-sm);
            letter-spacing: -0.02em;
        }

        .section-header p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-lg);
        }

        .comparison-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: var(--space-xl);
            transition: all var(--duration-normal) var(--ease-out);
        }

        .comparison-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 212, 255, 0.2);
        }

        .comparison-card.positive:hover {
            box-shadow: 0 20px 60px rgba(0, 212, 255, 0.1);
        }

        .comparison-card h3 {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 600;
            margin-bottom: var(--space-md);
        }

        .comparison-list {
            list-style: none;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-list li .icon {
            flex-shrink: 0;
            font-size: 18px;
            margin-top: 2px;
        }

        .comparison-card.negative .icon {
            color: rgba(255, 255, 255, 0.3);
        }

        .comparison-card.positive .icon {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== E. SOLUTIONS ===== */
        .solutions {
            padding: var(--space-4xl) 0;
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
        }

        .solution-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: var(--space-xl);
            transition: all var(--duration-normal) var(--ease-out);
            display: flex;
            flex-direction: column;
        }

        .solution-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 212, 255, 0.3);
            box-shadow: 0 20px 60px rgba(0, 212, 255, 0.08);
        }

        .solution-icon {
            width: 48px;
            height: 48px;
            margin-bottom: var(--space-md);
            color: var(--accent);
        }

        .solution-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: var(--space-xs);
        }

        .solution-card .benefit {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: var(--space-md);
            line-height: 1.5;
        }

        .solution-bullets {
            list-style: none;
            margin-bottom: var(--space-md);
            flex-grow: 1;
        }

        .solution-bullets li {
            font-size: 14px;
            color: var(--text-muted);
            padding: 6px 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .solution-bullets li::before {
            content: '✓';
            color: var(--accent);
            font-weight: bold;
        }

        .solution-card .btn {
            width: 100%;
            margin-top: auto;
        }

        @media (max-width: 968px) {
            .solutions-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== F. PROCESS ===== */
        .process {
            padding: var(--space-4xl) 0;
            background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.15) 50%, transparent 100%);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
            max-width: 900px;
            margin: 0 auto;
        }

        .process-step {
            text-align: center;
            padding: var(--space-lg);
        }

        .process-number {
            font-family: var(--font-serif);
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            opacity: 0.3;
            margin-bottom: var(--space-sm);
        }

        .process-step h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: var(--space-xs);
        }

        .process-step p {
            font-size: 15px;
            color: var(--text-secondary);
        }

        @media (max-width: 768px) {
            .process-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
        }

        /* ===== G. STATISTIC ===== */
        .statistic {
            padding: var(--space-4xl) 0;
            text-align: center;
        }

        .stat-box {
            max-width: 700px;
            margin: 0 auto;
        }

        .stat-number {
            font-family: var(--font-serif);
            font-size: clamp(72px, 15vw, 140px);
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            margin-bottom: var(--space-sm);
        }

        .stat-text {
            font-size: clamp(18px, 2.5vw, 24px);
            color: var(--text-secondary);
            margin-bottom: var(--space-sm);
        }

        .stat-source {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== H. ABOUT ===== */
        .about {
            padding: var(--space-4xl) 0;
        }

        .about-content {
            max-width: 600px;
            margin: 0 auto;
            text-align: center;
        }

        .about h2 {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 600;
            margin-bottom: var(--space-sm);
        }

        .about-name {
            font-size: 18px;
            color: var(--accent);
            margin-bottom: var(--space-xs);
        }

        .about-bio {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: var(--space-md);
        }

        .about-links {
            display: flex;
            justify-content: center;
            gap: var(--space-sm);
        }

        .about-links a {
            color: var(--text-muted);
            transition: color var(--duration-fast) var(--ease-out);
        }

        .about-links a:hover {
            color: var(--accent);
        }

        .about-links svg {
            width: 24px;
            height: 24px;
        }

        /* ===== I. FINAL CTA ===== */
        .final-cta {
            padding: var(--space-4xl) 0;
        }

        .cta-box {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: var(--space-3xl) var(--space-xl);
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-family: var(--font-serif);
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 600;
            margin-bottom: var(--space-sm);
        }

        .cta-box p {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: var(--space-lg);
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }

        /* ===== J. FOOTER ===== */
        .footer {
            padding: var(--space-3xl) 0 var(--space-lg);
            border-top: 1px solid var(--border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-xl);
            margin-bottom: var(--space-xl);
        }

        .footer-section h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: var(--space-md);
        }

        .footer-section ul {
            list-style: none;
        }

        .footer-section ul li {
            margin-bottom: var(--space-xs);
        }

        .footer-section a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 14px;
            transition: color var(--duration-fast) var(--ease-out);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: var(--space-lg);
            border-top: 1px solid var(--border);
        }

        .footer-legal {
            display: flex;
            gap: var(--space-md);
            list-style: none;
        }

        .footer-legal a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            transition: color var(--duration-fast) var(--ease-out);
        }

        .footer-legal a:hover {
            color: var(--text-primary);
        }

        .footer-copy {
            font-size: 13px;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--space-lg);
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .footer-bottom {
                flex-direction: column;
                gap: var(--space-sm);
                text-align: center;
            }
        }

        /* Coming Soon Card */
        .solution-card-coming {
            border-style: dashed;
            opacity: 0.85;
        }

        .coming-soon-text {
            font-style: italic;
        }

        /* ===== SCROLL REVEAL ===== */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .reveal-delay-1 {
            transition-delay: 0.1s;
        }

        .reveal-delay-2 {
            transition-delay: 0.2s;
        }

        .reveal-delay-3 {
            transition-delay: 0.3s;
        }
    </style>

/* Auth Styles Integration */
.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 160px);
    padding: var(--space-xl) var(--space-md);
}
.auth-card {
    width: 100%;
    max-width: 440px;
}
.card-glass {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: var(--space-2xl);
}
.form-group {
    margin-bottom: var(--space-md);
}
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}
.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    color: var(--text-primary);
    font-size: 15px;
    transition: all var(--duration-fast) var(--ease-out);
}
.form-input:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px var(--accent-glow);
}
.btn-block {
    width: 100%;
}
.btn-lg {
    padding: 16px 24px;
    font-size: 16px;
}
.form-error {
    color: #ff4d4d;
    font-size: 12px;
    margin-top: 6px;
}
.text-muted {
    color: var(--text-muted);
}
.mt-4 {
    margin-top: var(--space-lg);
}
.text-center {
    text-align: center;
}

/* App-specific Premium Effects */
.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent) 0%, #FFFFFF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}