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

        body {
            font-family: 'SF Pro Display', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #2d3748;
            background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #e5e7eb;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            position: relative;
        }
        
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: 2px solid #06b6d4;
            color: #06b6d4;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: all 0.3s;
        }
        
        .mobile-menu-toggle:hover {
            background: #06b6d4;
            color: white;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            color: #111827;
        }

        .logo i {
            margin-right: 10px;
            color: #06b6d4;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .nav-links a {
            color: #6b7280;
            text-decoration: none;
            transition: color 0.3s;
            font-weight: 500;
            padding: 8px 0;
        }

        .nav-links a:hover {
            color: #06b6d4;
        }

        /* Hero Section */
        .hero {
            padding: 8rem 0;
            text-align: center;
            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e5e7eb" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
            opacity: 0.5;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero h1 {
            font-size: 4rem;
            margin-bottom: 1.5rem;
            font-weight: 900;
            color: #111827;
            line-height: 1.1;
        }

        .hero .subtitle {
            font-size: 1.5rem;
            margin-bottom: 2rem;
            color: #6b7280;
            font-weight: 300;
        }

        .hero p {
            font-size: 1.2rem;
            margin-bottom: 3rem;
            color: #6b7280;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .cta-button {
            display: inline-block;
            background: #06b6d4;
            color: white;
            padding: 20px 40px;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            transition: all 0.3s;
            font-size: 1.1rem;
            box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
        }

        .cta-button:hover {
            background: #0891b2;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
        }

        /* AI Features Section */
        .ai-features {
            padding: 6rem 0;
            background: white;
        }

        .ai-features h2 {
            text-align: center;
            font-size: 3rem;
            margin-bottom: 1rem;
            color: #111827;
            font-weight: 800;
        }

        .ai-features .subtitle {
            text-align: center;
            font-size: 1.2rem;
            color: #6b7280;
            margin-bottom: 4rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 3rem;
            margin-top: 4rem;
        }

        .feature-card {
            text-align: center;
            padding: 2rem;
            border-radius: 12px;
            transition: all 0.3s;
            border: 1px solid #f3f4f6;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            border-color: #e5e7eb;
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 2rem;
            position: relative;
        }

        .feature-icon::before {
            content: '';
            position: absolute;
            top: -5px;
            left: -5px;
            right: -5px;
            bottom: -5px;
            background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
            border-radius: 50%;
            opacity: 0.2;
            animation: pulse-ring 2s infinite;
        }

        .feature-icon i {
            font-size: 2rem;
            color: white;
            position: relative;
            z-index: 2;
        }

        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: #111827;
            font-weight: 700;
        }

        .feature-card p {
            color: #6b7280;
            line-height: 1.7;
            font-size: 1rem;
        }

        /* AI Analysis Section */
        .ai-analysis {
            padding: 6rem 0;
            background: #f8fafc;
        }

        .ai-analysis h2 {
            text-align: center;
            font-size: 3rem;
            margin-bottom: 1rem;
            color: #111827;
            font-weight: 800;
        }

        .ai-analysis .subtitle {
            text-align: center;
            font-size: 1.2rem;
            color: #6b7280;
            margin-bottom: 4rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .analysis-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 4rem;
        }

        .analysis-card {
            background: white;
            padding: 2.5rem 2rem;
            border-radius: 12px;
            text-align: center;
            border: 1px solid #e5e7eb;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .analysis-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
        }

        .analysis-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .analysis-card h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: #111827;
            font-weight: 600;
        }

        .score {
            font-size: 3.5rem;
            font-weight: 900;
            color: #06b6d4;
            margin: 1rem 0;
            position: relative;
        }

        .score::after {
            content: '/10';
            font-size: 1.5rem;
            color: #9ca3af;
            font-weight: 400;
        }

        .score-label {
            color: #6b7280;
            font-size: 0.9rem;
            font-weight: 500;
        }

        /* Technology Section */
        .technology {
            padding: 6rem 0;
            background: white;
        }

        .technology h2 {
            text-align: center;
            font-size: 3rem;
            margin-bottom: 1rem;
            color: #111827;
            font-weight: 800;
        }

        .technology .subtitle {
            text-align: center;
            font-size: 1.2rem;
            color: #6b7280;
            margin-bottom: 4rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-top: 4rem;
        }

        .tech-item {
            text-align: center;
            padding: 2rem 1rem;
            border-radius: 12px;
            border: 1px solid #e5e7eb;
            transition: all 0.3s;
        }

        .tech-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }

        .tech-icon {
            font-size: 3rem;
            color: #06b6d4;
            margin-bottom: 1rem;
        }

        .tech-item h3 {
            font-size: 1.1rem;
            color: #111827;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .tech-item p {
            color: #6b7280;
            font-size: 0.9rem;
        }

        /* Disclaimers Section */
        .disclaimers {
            background: #111827;
            color: white;
            padding: 4rem 0;
        }

        .disclaimers h2 {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 2rem;
            color: #06b6d4;
            font-weight: 800;
        }

        .disclaimer-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            background: rgba(255, 255, 255, 0.05);
            padding: 2.5rem;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .disclaimer-content p {
            margin-bottom: 1rem;
            font-size: 1rem;
            line-height: 1.7;
            color: #d1d5db;
        }

        .disclaimer-content .highlight {
            color: #06b6d4;
            font-weight: bold;
        }

        /* Footer */
        footer {
            background: #f8fafc;
            color: #6b7280;
            padding: 3rem 0;
            border-top: 1px solid #e5e7eb;
        }

        .footer-bottom {
            text-align: center;
            font-size: 0.9rem;
        }

        /* WhatsApp Button */
        .whatsapp-float {
            position: fixed;
            width: 70px;
            height: 70px;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
            color: white;
            border-radius: 50px;
            text-align: center;
            font-size: 32px;
            box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            text-decoration: none;
            border: 3px solid white;
            animation: pulse 2s infinite;
        }

        .whatsapp-float:hover {
            background: linear-gradient(135deg, #128c7e 0%, #0d6b5a 100%);
            transform: translateX(-50%) scale(1.15);
            box-shadow: 0 12px 35px rgba(37, 211, 102, 0.6);
            text-decoration: none;
            color: white;
        }

        .whatsapp-float::before {
            content: '';
            position: absolute;
            top: -5px;
            left: -5px;
            right: -5px;
            bottom: -5px;
            background: linear-gradient(135deg, #25d366, #128c7e);
            border-radius: 50px;
            z-index: -1;
            opacity: 0.3;
            animation: ripple 2s infinite;
        }

        .whatsapp-tooltip {
            position: absolute;
            bottom: 80px;
            left: 50%;
            transform: translateX(-50%);
            background: #111827;
            color: white;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            z-index: 1001;
        }

        .whatsapp-tooltip::after {
            content: '';
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            border: 6px solid transparent;
            border-top-color: #111827;
        }

        .whatsapp-float:hover .whatsapp-tooltip {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(-5px);
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
            }
            50% {
                box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6), 0 0 0 10px rgba(37, 211, 102, 0.1);
            }
            100% {
                box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
            }
        }

        @keyframes ripple {
            0% {
                transform: scale(1);
                opacity: 0.3;
            }
            100% {
                transform: scale(1.4);
                opacity: 0;
            }
        }

        @keyframes pulse-ring {
            0% {
                transform: scale(0.8);
                opacity: 0.8;
            }
            100% {
                transform: scale(1.2);
                opacity: 0;
            }
        }

        /* Tablet/iPad Responsive */
        @media (max-width: 1024px) and (min-width: 769px) {
            .whatsapp-float {
                width: 65px;
                height: 65px;
                font-size: 30px;
                bottom: 25px;
                z-index: 1001;
            }
            
            .whatsapp-tooltip {
                opacity: 1 !important;
                visibility: visible !important;
                transform: translateX(-50%) translateY(-5px) !important;
                bottom: 85px;
                background: #111827;
                font-size: 13px;
                padding: 10px 14px;
                border-radius: 8px;
                box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            }
        }
        
        /* Mobile Responsive */
        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }
            
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(248, 250, 252, 0.95);
                backdrop-filter: blur(10px);
                flex-direction: column;
                gap: 0;
                padding: 1rem 0;
                border-radius: 0 0 12px 12px;
                box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
                border: 1px solid #e5e7eb;
                z-index: 1000;
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .nav-links li {
                width: 100%;
            }
            
            .nav-links a {
                display: block;
                padding: 14px 20px;
                font-size: 1rem;
                text-align: center;
                color: #6b7280;
                border-bottom: 1px solid #e5e7eb;
                transition: all 0.3s;
                border-left: 3px solid transparent;
            }
            
            .nav-links a:hover {
                color: #06b6d4;
                background: #f8fafc;
                border-left-color: #06b6d4;
            }
            
            .nav-links li:last-child a {
                border-bottom: none;
            }

            .hero h1 {
                font-size: 2.5rem;
            }

            .hero .subtitle {
                font-size: 1.2rem;
            }

            .hero p {
                font-size: 1rem;
            }

            .ai-features h2, .ai-analysis h2, .technology h2 {
                font-size: 2.2rem;
            }

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

            .whatsapp-float {
                width: 60px;
                height: 60px;
                font-size: 28px;
                bottom: 20px;
                z-index: 1001;
                position: fixed !important;
                display: flex !important;
            }
            
            .whatsapp-tooltip {
                opacity: 1 !important;
                visibility: visible !important;
                transform: translateX(-50%) translateY(-5px) !important;
                bottom: 75px;
                background: #111827;
                font-size: 12px;
                padding: 8px 12px;
                border-radius: 6px;
                box-shadow: 0 4px 15px rgba(0,0,0,0.2);
                white-space: nowrap;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }

            .hero {
                padding: 4rem 0;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .feature-card, .analysis-card, .tech-item {
                padding: 1.5rem;
            }
        }