* { margin: 0; padding: 0; box-sizing: border-box; }
        
        /* Modern Color Palette */
        :root {
            --primary-cyan: #00D9FF;
            --primary-dark: #0A1E3D;
            --primary-blue: #1a4d7a;
            --accent-orange: #FF6B35;
            --accent-coral: #FF8C61;
            --success-green: #10B981;
            --warning-yellow: #F59E0B;
            --neutral-100: #F8FAFC;
            --neutral-200: #E2E8F0;
            --neutral-300: #CBD5E1;
            --neutral-700: #334155;
            --neutral-800: #1E293B;
            --neutral-900: #0F172A;
            --gradient-primary: linear-gradient(135deg, #00D9FF 0%, #0A78BE 100%);
            --gradient-accent: linear-gradient(135deg, #FF6B35 0%, #FF8C61 100%);
            --gradient-success: linear-gradient(135deg, #10B981 0%, #059669 100%);
        }
        
        /* SEO-friendly font settings with Poppins for headings */
        body { 
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.7;
            color: var(--neutral-700);
            font-size: 16px;
            background: var(--neutral-100);
        }
        
        /* Improved typography with Poppins */
        h1, h2, h3, h4, h5, h6 { 
            font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary-dark);
        }
        h1 { font-size: 2.75rem; line-height: 1.1; font-weight: 800; }
        h2 { font-size: 2.25rem; line-height: 1.2; }
        h3 { font-size: 1.625rem; line-height: 1.3; font-weight: 600; }
        h4 { font-size: 1.375rem; line-height: 1.4; font-weight: 600; }
        p { font-size: 1.0625rem; line-height: 1.8; margin-bottom: 1.2rem; color: var(--neutral-700); }
        
        /* Smooth scrolling */
        html { scroll-behavior: smooth; }
        
        /* Breadcrumb Navigation */
        .breadcrumb-container { 
            background: white;
            padding: 1rem 0; 
            border-bottom: none;
            position: sticky;
            top: 82px;
            z-index: 999;
        }
        .breadcrumb-wrapper { 
            max-width: 1200px; 
            margin: 0 auto; 
            padding: 0 2rem; 
        }
        .breadcrumb { 
            display: flex; 
            align-items: center; 
            list-style: none; 
            padding: 0; 
            margin: 0; 
            flex-wrap: wrap;
        }
        .breadcrumb li { 
            display: flex; 
            align-items: center; 
        }
        .breadcrumb a { 
            color: var(--primary-cyan); 
            text-decoration: none; 
            transition: all 0.3s; 
            font-weight: 500; 
            font-size: 0.95rem;
        }
        .breadcrumb a:hover { 
            color: var(--accent-orange); 
        }
        .breadcrumb span { 
            color: var(--neutral-700); 
            margin: 0 0.5rem; 
        }
        .breadcrumb strong { 
            color: var(--neutral-700); 
            font-weight: 600; 
            font-size: 0.95rem;
        }
        
        /* Enhanced Header with Banner Background */
        header { 
            background: url('images/banner.webp') center center / cover no-repeat;
            background-color: var(--primary-dark);
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            position: sticky; 
            top: 0; 
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        header::before { 
            content: ''; 
            position: absolute; 
            top: 0; left: 0; right: 0; bottom: 0; 
            background: linear-gradient(135deg, rgba(10, 30, 61, 0.7) 0%, rgba(10, 120, 190, 0.6) 100%);
            z-index: -1; 
        }
        .header-container { max-width: 1200px; margin: 0 auto; padding: 1rem 2rem; display: flex; align-items: center; justify-content: space-between; }
        .logo-container { display: flex; align-items: center; gap: 1rem; }
        .logo-container img { height: 60px; width: auto; transition: transform 0.3s; }
        .logo-container img:hover { transform: scale(1.05); }
        .company-name { color: #fff; font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; }
        
        /* Modern Navigation */
        nav { display: flex; gap: 2rem; }
        .nav-item { position: relative; }
        .nav-link { 
            color: rgba(255,255,255,0.95);
            text-decoration: none; 
            padding: 0.5rem 1rem; 
            display: block; 
            transition: all 0.3s ease; 
            font-weight: 500; 
            font-size: 1rem;
            border-radius: 6px;
        }
        
        /* Make nav-link buttons look like links */
        button.nav-link {
            background: none;
            border: 0;
            cursor: pointer;
            font: inherit;
            text-align: left;
            -webkit-appearance: none;
            appearance: none;
        }
        button.nav-link:focus-visible {
            outline: 2px solid rgba(0, 217, 255, 0.6);
            outline-offset: 3px;
        }
.nav-link:hover { 
            color: var(--primary-cyan);
            background: rgba(0, 217, 255, 0.1);
            transform: translateY(-2px);
        }
        .dropdown-menu { 
            position: absolute; 
            top: 100%; 
            left: 0; 
            background: white;
            min-width: 250px; 
            box-shadow: 0 10px 40px rgba(0,0,0,0.15);
            opacity: 0; 
            visibility: hidden; 
            transform: translateY(-10px); 
            transition: all 0.3s ease; 
            border-radius: 8px;
            border: 1px solid var(--neutral-200);
        }
        .nav-item:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
        .dropdown-menu a { 
            color: var(--neutral-800);
            padding: 0.75rem 1.5rem; 
            display: block; 
            text-decoration: none; 
            transition: all 0.3s ease; 
            border-bottom: none;
            font-size: 0.95rem;
        }
        .dropdown-menu a:last-child { border-bottom: none; }
        .dropdown-menu a:hover { 
            background: var(--gradient-primary);
            color: white;
            padding-left: 2rem;
        }
        .mobile-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }
        
        /* Vibrant Page Header */
        .page-header { 
            background: var(--gradient-primary);
            color: #fff; 
            padding: 4rem 2rem; 
            text-align: center; 
            position: relative;
            overflow: hidden;
        }
        .page-header::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            animation: float 20s infinite ease-in-out;
        }
        .page-header::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: rgba(255, 107, 53, 0.1);
            border-radius: 50%;
            animation: float 15s infinite ease-in-out reverse;
        }
        @keyframes float {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-30px) rotate(180deg); }
        }
        .page-header h1 { font-size: 2.75rem; margin-bottom: 0.5rem; position: relative; z-index: 1; text-shadow: 0 2px 10px rgba(0,0,0,0.1); }
        .last-updated { font-size: 0.85rem; color: rgba(255,255,255,0.8); margin-top: 0.5rem; font-style: italic; position: relative; z-index: 1; }
        
        main { max-width: 1400px; margin: 0 auto; padding: 3rem 2rem; }
        
        /* Hero Image with Lighthouse Effect */
        .hero-image { 
            text-align: center;
            margin-bottom: 3rem;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0,0,0,0.2);
            position: relative;
            max-height: 500px;
        }
        .hero-image img { 
            max-width: 100%; 
            width: 100%;
            height: auto;
            max-height: 500px;
            object-fit: cover;
            display: block;
        }
        
        /* Lighthouse Overlay Container */
        .lighthouse-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            pointer-events: none;
            overflow: hidden;
        }
        
        /* Hero Text - Enhanced with light interaction */
        .hero-text {
            position: absolute;
            top: 8%;
            left: 5%;
            text-align: left;
            z-index: 2;
            max-width: 500px;
        }
        
        .hero-text h2 {
            font-size: clamp(1rem, 2.8vw, 1.8rem);
            font-weight: 300;
            font-family: 'Segoe UI Light', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            color: #ffffff;
            text-shadow: 
                0 0 10px rgba(0, 0, 0, 0.9),
                0 0 20px rgba(0, 0, 0, 0.7),
                0 0 30px rgba(0, 0, 0, 0.5),
                2px 2px 6px rgba(0, 0, 0, 1);
            margin: 0;
            letter-spacing: 0.02em;
            line-height: 1.3;
            animation: textGlow 8s linear infinite;
        }
        
        @keyframes textGlow {
            0%, 100% {
                text-shadow: 
                    0 0 10px rgba(0, 0, 0, 0.9),
                    0 0 20px rgba(0, 0, 0, 0.7),
                    2px 2px 6px rgba(0, 0, 0, 1);
                filter: brightness(1);
            }
            /* Light approaching */
            20% {
                text-shadow: 
                    0 0 15px rgba(255, 255, 255, 0.3),
                    0 0 25px rgba(0, 217, 255, 0.2),
                    2px 2px 6px rgba(0, 0, 0, 0.8);
                filter: brightness(1.2);
            }
            /* Direct hit - MAXIMUM BRIGHTNESS */
            25% {
                text-shadow: 
                    0 0 40px rgba(255, 255, 255, 1),
                    0 0 80px rgba(255, 255, 255, 0.9),
                    0 0 120px rgba(255, 255, 255, 0.7),
                    0 0 160px rgba(0, 217, 255, 0.6),
                    0 2px 4px rgba(0, 0, 0, 0.3);
                color: #ffffff;
                filter: brightness(2.5) drop-shadow(0 0 30px rgba(255, 255, 255, 0.8));
            }
            /* Light passing */
            30% {
                text-shadow: 
                    0 0 20px rgba(255, 255, 255, 0.5),
                    0 0 35px rgba(0, 217, 255, 0.3),
                    2px 2px 6px rgba(0, 0, 0, 0.7);
                filter: brightness(1.3);
            }
            50% {
                text-shadow: 
                    0 0 10px rgba(0, 0, 0, 0.9),
                    0 0 20px rgba(0, 0, 0, 0.7),
                    2px 2px 6px rgba(0, 0, 0, 1);
                filter: brightness(1);
            }
        }
        
        .hero-text p {
            font-size: clamp(0.6rem, 1.4vw, 0.85rem);
            font-weight: 300;
            font-family: 'Segoe UI Light', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            color: #00D9FF;
            text-shadow: 
                0 0 8px rgba(0, 0, 0, 0.9),
                0 0 15px rgba(0, 0, 0, 0.7),
                0 0 25px rgba(0, 217, 255, 0.3),
                2px 2px 4px rgba(0, 0, 0, 1);
            margin-top: 0.4rem;
            letter-spacing: 0.05em;
            animation: textGlow 8s linear infinite 0.2s;
        }
        
        /* Enhanced Feature Cards */
        .feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; margin: 3rem 0; }
        .feature-card { 
            background: white;
            padding: 2.5rem 2rem; 
            border-radius: 16px; 
            border: 1px solid var(--neutral-200);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transition: transform 0.4s;
        }
        .feature-card:hover::before {
            transform: scaleX(1);
        }
        .feature-card:hover { 
            transform: translateY(-8px);
            box-shadow: 0 20px 50px rgba(0, 217, 255, 0.2);
            border-color: var(--primary-cyan);
        }
        .feature-icon { 
            font-size: 3.5rem; 
            margin-bottom: 1rem;
            animation: bounce 2s infinite;
        }
        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }
        .feature-card:hover .feature-icon {
            animation: none;
            transform: scale(1.1);
        }
        .feature-card h4 { color: var(--primary-dark); margin-bottom: 0.5rem; font-size: 1.25rem; }
        .feature-card p { font-size: 0.95rem; color: var(--neutral-700); text-align: center; line-height: 1.6; }
        
        /* Modern Content Sections */
        .content-section { 
            background: white;
            padding: 3rem 4rem; 
            margin-bottom: 2rem; 
            border-radius: 16px; 
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
            max-width: 1350px; 
            margin-left: auto; 
            margin-right: auto; 
            margin-bottom: 2rem;
            border: 1px solid var(--neutral-200);
            transition: box-shadow 0.3s;
        }
        .content-section:hover {
            box-shadow: 0 8px 30px rgba(0,0,0,0.1);
        }
        .content-section h2 { 
            color: var(--primary-dark);
            margin-bottom: 2rem; 
            font-size: 2.25rem;
            border-left: 5px solid var(--primary-cyan);
            padding-left: 1.5rem;
            font-weight: 700;
        }
        .content-section h3 { color: var(--primary-blue); margin-top: 2.5rem; margin-bottom: 1.5rem; font-size: 1.625rem; }
        .content-section p { margin-bottom: 1.2rem; color: var(--neutral-700); line-height: 1.9; }
        .content-section img { max-width: 100%; height: auto; margin: 1.5rem 0; border-radius: 12px; box-shadow: 0 8px 25px rgba(0,0,0,0.1); transition: transform 0.3s; }
        .content-section img:hover { transform: scale(1.02); }
        .content-section ul li, .content-section ol li { margin-bottom: 0.5rem; line-height: 1.7; }
        .content-section strong { font-weight: 600; color: var(--primary-dark); }
        
        /* Enhanced Modules Grid */
        .modules-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin: 3rem 0; }
        .module-column { 
            background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
            border-radius: 16px; 
            padding: 2rem; 
            border: 2px solid var(--neutral-200);
            transition: all 0.4s;
            position: relative;
            overflow: hidden;
        }
        .module-column::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 5px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transition: transform 0.4s;
        }
        .module-column:hover::before {
            transform: scaleX(1);
        }
        .module-column:hover { 
            border-color: var(--primary-cyan);
            box-shadow: 0 12px 40px rgba(0, 217, 255, 0.15);
            transform: translateY(-5px);
        }
        .module-header { 
            cursor: pointer; 
            display: flex; 
            justify-content: space-between; 
            align-items: center; 
            padding: 0.75rem 0; 
            user-select: none;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .module-header:hover {
            background: rgba(0, 217, 255, 0.05);
            padding-left: 0.5rem;
        }
        .module-header h3 { margin: 0; color: var(--primary-dark); font-size: 1.375rem; }
        .module-toggle { 
            font-size: 1.75rem;
            color: var(--primary-cyan);
            font-weight: bold; 
            transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            background: rgba(0, 217, 255, 0.1);
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }
        .module-toggle.active { 
            transform: rotate(135deg);
            background: var(--gradient-primary);
            color: white;
        }
        .module-content { 
            max-height: 0; 
            overflow: hidden; 
            transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .module-content.active { 
            max-height: 1200px;
            transition: max-height 0.7s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .module-column ul { list-style: none; padding: 0; margin-top: 1.5rem; }
        .module-column li { 
            padding: 0.4rem 0 0.4rem 1.75rem;
            position: relative; 
            color: var(--neutral-700);
            font-size: 0.95rem;
            line-height: 1.6;
            transition: all 0.3s;
        }
        .module-column li:hover {
            color: var(--primary-dark);
            padding-left: 2rem;
        }
        .module-column li::before { 
            content: "●";
            position: absolute; 
            left: 0;
            color: var(--primary-cyan);
            font-weight: bold; 
            font-size: 1.1rem;
            transition: all 0.3s;
        }
        .module-column li:hover::before {
            color: var(--accent-orange);
            transform: scale(1.3);
        }
        
        /* Vibrant Sidebar Menu */
        .sidebar-menu { 
            background: white;
            padding: 2rem; 
            border-radius: 16px; 
            margin-bottom: 3rem;
            border-left: 5px solid var(--primary-cyan);
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            max-width: 1200px; 
            margin-left: auto; 
            margin-right: auto; 
            margin-bottom: 3rem;
        }
        
        /* Menu-top scroll anchor */
        #menu-top {
            scroll-margin-top: 140px;
            height: 1px;
        }
        
        .sidebar-menu a { 
            display: block; 
            color: var(--primary-dark);
            text-decoration: none; 
            padding: 0.85rem 1.25rem;
            font-weight: 600;
            transition: all 0.3s;
            font-size: 1.05rem;
            border-radius: 8px;
            margin-bottom: 0.5rem;
            position: relative;
            overflow: hidden;
        }
        .sidebar-menu a::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--gradient-primary);
            transform: scaleY(0);
            transition: transform 0.3s;
        }
        .sidebar-menu a:hover::before {
            transform: scaleY(1);
        }
        .sidebar-menu a:hover { 
            color: var(--primary-cyan);
            background: rgba(0, 217, 255, 0.08);
            padding-left: 1.75rem;
        }
        
        /* Video Container */
        .video-container { 
            position: relative; 
            padding-bottom: 56.25%;
            height: 0; 
            overflow: hidden; 
            max-width: 100%;
            margin: 2rem 0; 
            border-radius: 16px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.15);
        }
        .video-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; border-radius: 16px; }
        
        
        /* Modern Price Table */
        .price-table { 
            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
            padding: 2.5rem; 
            border-radius: 16px;
            margin: 2rem 0;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
        }
        .price-row { 
            display: flex; 
            justify-content: space-between;
            padding: 1.5rem;
            border-bottom: 1px solid var(--neutral-300);
            align-items: center;
            transition: all 0.3s;
            border-radius: 8px;
        }
        .price-row:hover {
            background: white;
            transform: translateX(10px);
        }
        .price-row:last-child { border-bottom: none; }
        .price-label { font-weight: 600; color: var(--primary-dark); font-size: 1.05rem; }
        .price-value { 
            color: var(--primary-cyan);
            font-size: 1.5rem;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        /* Vibrant Discount Box */
        .discount-box { 
            background: var(--gradient-accent);
            color: #fff; 
            padding: 3rem; 
            border-radius: 20px;
            text-align: center; 
            margin: 3rem 0;
            box-shadow: 0 15px 50px rgba(255, 107, 53, 0.3);
            position: relative;
            overflow: hidden;
        }
        .discount-box::before {
            content: '🎉';
            position: absolute;
            font-size: 15rem;
            opacity: 0.1;
            top: -50%;
            right: -10%;
            animation: float 10s infinite;
        }
        .discount-box h3 { margin-bottom: 1.5rem; font-size: 1.75rem; color: white; position: relative; z-index: 1; }
        .discount-box p { font-size: 1.15rem; position: relative; z-index: 1; }
        
        /* Enhanced CTA Buttons */
        .cta-button { 
            display: inline-block;
            background: var(--gradient-accent);
            color: #fff; 
            padding: 1.25rem 3rem;
            border-radius: 50px;
            text-decoration: none; 
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            margin: 1rem 0.5rem;
            box-shadow: 0 8px 25px rgba(255, 107, 53, 0.3);
            position: relative;
            overflow: hidden;
        }
        .cta-button::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }
        .cta-button:hover::before {
            width: 300px;
            height: 300px;
        }
        .cta-button:hover { 
            transform: translateY(-5px) scale(1.05);
            box-shadow: 0 15px 40px rgba(255, 107, 53, 0.4);
        }
        
        /* Back to Top Button */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--gradient-primary);
            color: white;
            border: none;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 8px 25px rgba(0, 217, 255, 0.4);
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            z-index: 998;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            transform: translateY(-5px) scale(1.1);
            box-shadow: 0 12px 35px rgba(0, 217, 255, 0.5);
        }
        .back-to-top::before {
            content: '↑';
            font-size: 1.75rem;
            font-weight: bold;
        }
        
        /* Section Back to Menu Link */
        .back-to-menu {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--primary-cyan);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            background: rgba(0, 217, 255, 0.08);
            transition: all 0.3s;
            margin-top: 2rem;
            border: 1px solid rgba(0, 217, 255, 0.2);
        }
        .back-to-menu:hover {
            background: rgba(0, 217, 255, 0.15);
            transform: translateX(-5px);
            border-color: var(--primary-cyan);
        }
        .back-to-menu::before {
            content: '↑';
            font-size: 1.2rem;
            font-weight: bold;
        }
        
        /* Modern Social Share */
        .social-share { 
            text-align: center;
            margin: 3rem 0;
            padding: 2.5rem;
            background: white;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
        }
        .social-share h4 { margin-bottom: 1.5rem; color: var(--primary-dark); font-size: 1.5rem; }
        .social-buttons { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
        .social-btn { 
            display: inline-flex;
            align-items: center; 
            gap: 0.5rem;
            padding: 0.85rem 1.75rem;
            border-radius: 50px;
            text-decoration: none; 
            color: white;
            font-weight: 600;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
        }
        .social-btn:hover { 
            transform: translateY(-4px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.25);
        }
        .social-btn.facebook { background: linear-gradient(135deg, #1877f2 0%, #0e5fc7 100%); }
        .social-btn.twitter { background: linear-gradient(135deg, #1da1f2 0%, #0c85d0 100%); }
        .social-btn.linkedin { background: linear-gradient(135deg, #0077b5 0%, #005885 100%); }
        .social-btn.whatsapp { background: linear-gradient(135deg, #25d366 0%, #1ebe57 100%); }
        
        /* Enhanced FAQ Section */
        .faq-section { 
            background: white;
            padding: 3rem 4rem;
            border-radius: 16px;
            margin: 3rem auto;
            max-width: 1350px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
        }
        .faq-item { 
            margin-bottom: 1.5rem;
            border: 2px solid var(--neutral-200);
            border-radius: 12px;
            transition: all 0.3s;
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: var(--primary-cyan);
            box-shadow: 0 4px 15px rgba(0, 217, 255, 0.1);
        }
        .faq-item:last-child { border-bottom: 2px solid var(--neutral-200); }
        .faq-question { 
            font-weight: 700;
            color: var(--primary-dark);
            font-size: 1.15rem;
            cursor: pointer;
            display: flex; 
            justify-content: space-between;
            align-items: center;
            transition: color 0.3s;
            padding: 1.5rem;
            background: white;
        }
        .faq-question:hover { color: var(--primary-cyan); }
        .faq-answer { 
            color: var(--neutral-700);
            line-height: 1.8;
            padding: 0 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 1rem 1.5rem 1.5rem 1.5rem;
            border-top: 1px solid var(--neutral-200);
            margin-top: 0;
        }
        .faq-toggle { 
            color: var(--primary-cyan);
            font-weight: bold;
            font-size: 1.5rem;
            transition: transform 0.3s;
        }
        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
        }
        
        .highlight-box { 
            background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
            border-left: 5px solid var(--primary-cyan);
            padding: 2rem;
            margin: 2rem 0;
            border-radius: 12px;
        }
        .highlight-box h4 { font-size: 1.25rem; margin-bottom: 1rem; }
        .highlight-box p { font-size: 1.05rem; }
        
        .note-box { 
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            border-left: 5px solid var(--warning-yellow);
            padding: 1.5rem;
            margin: 1.5rem 0;
            font-style: italic; 
            font-size: 1rem;
            border-radius: 12px;
        }
        
        .promo-box { 
            text-align: center;
            margin: 3rem auto;
            padding: 3rem;
            background: linear-gradient(135deg, #FFEB3B 0%, #FFC107 100%);
            border-radius: 20px;
            border: 3px solid #FFA000;
            max-width: 1200px;
            box-shadow: 0 15px 50px rgba(255, 193, 7, 0.3);
            position: relative;
            overflow: hidden;
        }
        .promo-box::before {
            content: '⭐';
            position: absolute;
            font-size: 20rem;
            opacity: 0.05;
            top: -50%;
            left: -10%;
            animation: rotate 20s infinite linear;
        }
        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        
        footer { 
            background: var(--primary-dark);
            color: #fff;
            text-align: center; 
            padding: 3rem;
            margin-top: 5rem;
            font-size: 1rem;
        }
        .float-right { float: right; margin: 0 0 1rem 1.5rem; max-width: 200px; }
        
        /* Lazy loading placeholder */
        img[data-src] { filter: blur(5px); transition: filter 0.3s; }
        img.loaded { filter: blur(0); }
        
        /* Mobile optimizations */
        @media (max-width: 768px) {
            body { font-size: 15px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.75rem; }
            h3 { font-size: 1.375rem; }
            
            /* Hero Image Mobile */
            .hero-image {
                max-height: 350px;
            }
            .hero-image img {
                max-height: 350px;
            }
            .hero-text {
                top: 5%;
                left: 3%;
                max-width: 80%;
            }
            .hero-text h2 {
                font-size: clamp(0.8rem, 3.8vw, 1.1rem);
                letter-spacing: 0.01em;
            }
            .hero-text p {
                font-size: clamp(0.55rem, 1.8vw, 0.7rem);
                letter-spacing: 0.03em;
            }
            
            .mobile-toggle { display: block; }
            nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--primary-dark); flex-direction: column; gap: 0; padding: 1rem 0; }
            nav.active { display: flex; }
            .nav-item { width: 100%; }
            .nav-link { padding: 1rem 1.5rem; }
            .dropdown-menu { 
                position: static; 
                opacity: 1; 
                visibility: visible; 
                transform: none; 
                box-shadow: none; 
                background: rgba(255,255,255,0.05); 
                display: none;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease-out;
            }
            .nav-item.active .dropdown-menu { 
                display: block; 
                max-height: 500px;
            }
            .dropdown-menu a {
                color: rgba(255, 255, 255, 0.9);
                background: transparent;
            }
            .dropdown-menu a:hover {
                background: rgba(255, 255, 255, 0.1);
                color: var(--primary-cyan);
            }
            .page-header h1 { font-size: 2rem; }
            .modules-grid { grid-template-columns: 1fr; }
            .feature-grid { grid-template-columns: 1fr; }
            .float-right { float: none; max-width: 100%; margin: 1rem 0; }
            .content-section p { text-align: left; }
            .back-to-top { bottom: 15px; right: 15px; width: 45px; height: 45px; font-size: 1.3rem; }
            .social-buttons { flex-direction: column; }
            .content-section { padding: 2rem; }
        }
    

                    a:has(> div) div:hover {
                        transform: translateY(-5px);
                        box-shadow: 0 15px 50px rgba(0,0,0,0.2) !important;
                    }
                    a:has(> div) div:hover > div:nth-child(2) {
                        background: rgba(255, 0, 0, 1);
                        transform: translate(-50%, -50%) scale(1.1);
                    }

/* === Performance / mobile UX tweaks (added) === */
:root{ --header-h: 82px; }

/* breadcrumb top offset now follows actual header height (set by JS) */
.breadcrumb-container{ top: var(--header-h, 82px); }

/* Mobile: make breadcrumbs overflow nicely */
@media (max-width: 768px){
  .breadcrumb-container{ padding: .75rem 0; }
  .breadcrumb{
    overflow-x:auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }
  .breadcrumb::-webkit-scrollbar{ height: 6px; }
  /* Reduce heavy decorative animations on mobile */
  .page-header::before,
  .page-header::after,
  .promo-box::before{
    animation: none !important;
  }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}