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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: #f8f9fa;
        }

        /* Top Bar */
        .top-bar {
            background: #2d3748;
            color: white;
            padding: 8px 0;
            font-size: 14px;
        }

        .top-bar-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .contact-info {
            display: flex;
            gap: 20px;
        }

        .contact-info span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .social-links {
            display: flex;
            gap: 10px;
        }

        .social-links a {
            color: white;
            text-decoration: none;
            padding: 5px;
            border-radius: 3px;
            transition: background 0.3s;
        }

        .social-links a:hover {
            background: rgba(255,255,255,0.1);
        }

        /* Header */
        .header {
            background: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 70px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: #2d3748;
        }

        .logo-icon {
            font-size: 2rem;
        }

        .logo-text {
            font-size: 1.5rem;
            font-weight: bold;
        }

        .main-nav {
            display: flex;
            list-style: none;
            gap: 30px;
        }

        .main-nav a {
            text-decoration: none;
            color: #4a5568;
            font-weight: 600;
            padding: 10px 15px;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .main-nav a:hover {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            padding: 5px;
        }

        .mobile-menu-toggle span {
            width: 25px;
            height: 3px;
            background: #4a5568;
            margin: 3px 0;
            transition: 0.3s;
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
        }

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

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 15px;
            opacity: 0.95;
        }

        .hero-description {
            font-size: 1.1rem;
            margin-bottom: 40px;
            opacity: 0.9;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-button {
            background: white;
            color: #667eea;
            padding: 15px 30px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.3);
        }

        .cta-button.secondary {
            background: transparent;
            color: white;
            border: 2px solid white;
        }

        .cta-button.secondary:hover {
            background: white;
            color: #667eea;
        }

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

        /* Introduction Section */
        .intro-section {
            padding: 80px 0;
            background: white;
        }

        .intro-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .intro-text h2 {
            font-size: 2.5rem;
            color: #2d3748;
            margin-bottom: 25px;
            line-height: 1.2;
        }

        .intro-text p {
            font-size: 1.1rem;
            color: #4a5568;
            margin-bottom: 20px;
        }

        .features-list {
            list-style: none;
            margin: 30px 0;
        }

        .features-list li {
            padding: 10px 0;
            color: #4a5568;
            font-size: 1.05rem;
            position: relative;
            padding-left: 30px;
        }

        .features-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #48bb78;
            font-weight: bold;
            font-size: 1.2rem;
        }

        .intro-visual {
            background: linear-gradient(135deg, #f7fafc, #edf2f7);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
            margin-top: 30px;
        }

        .stat-item {
            text-align: center;
            padding: 20px;
            background: white;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: bold;
            color: #667eea;
            display: block;
        }

        .stat-label {
            color: #4a5568;
            font-size: 0.95rem;
            margin-top: 5px;
        }

        /* Calculators Grid */
        .calculators-section {
            padding: 80px 0;
            background: #f8f9fa;
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-header h2 {
            font-size: 2.5rem;
            color: #2d3748;
            margin-bottom: 15px;
        }

        .section-header p {
            font-size: 1.2rem;
            color: #4a5568;
            max-width: 600px;
            margin: 0 auto;
        }

        .calculators-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
        }

        .calculator-card {
            background: white;
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .calculator-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 5px;
        }

        .calculator-card:nth-child(1)::before { background: linear-gradient(135deg, #667eea, #764ba2); }
        .calculator-card:nth-child(2)::before { background: linear-gradient(135deg, #48bb78, #38a169); }
        .calculator-card:nth-child(3)::before { background: linear-gradient(135deg, #ed64a6, #d53f8c); }
        .calculator-card:nth-child(4)::before { background: linear-gradient(135deg, #ed8936, #dd6b20); }
        .calculator-card:nth-child(5)::before { background: linear-gradient(135deg, #805ad5, #6b46c1); }
        .calculator-card:nth-child(6)::before { background: linear-gradient(135deg, #10b981, #059669); }

        .calculator-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 25px 50px rgba(0,0,0,0.15);
        }

        .calculator-icon {
            font-size: 3rem;
            margin-bottom: 20px;
            display: block;
        }

        .calculator-title {
            font-size: 1.8rem;
            color: #2d3748;
            margin-bottom: 15px;
        }

        .calculator-description {
            color: #4a5568;
            margin-bottom: 25px;
            line-height: 1.6;
        }

        .calculator-features {
            list-style: none;
            margin-bottom: 30px;
        }

        .calculator-features li {
            padding: 5px 0;
            color: #4a5568;
            font-size: 0.95rem;
            position: relative;
            padding-left: 20px;
        }

        .calculator-features li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: #667eea;
            font-weight: bold;
        }

        .calculator-link {
            display: inline-block;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            padding: 12px 25px;
            border-radius: 25px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .calculator-link:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
        }

        /* Benefits Section */
        .benefits-section {
            padding: 80px 0;
            background: white;
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
            margin-top: 50px;
        }

        .benefit-card {
            text-align: center;
            padding: 30px;
        }

        .benefit-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin: 0 auto 20px;
        }

        .benefit-title {
            font-size: 1.5rem;
            color: #2d3748;
            margin-bottom: 15px;
        }

        .benefit-description {
            color: #4a5568;
            line-height: 1.6;
        }

        /* Industries Section */
        .industries-section {
            padding: 80px 0;
            background: #f8f9fa;
        }

        .industries-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin-top: 50px;
        }

        .industry-card {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }

        .industry-card:hover {
            transform: translateY(-5px);
        }

        .industry-name {
            font-weight: 600;
            color: #2d3748;
            margin-bottom: 10px;
        }

        .industry-margin {
            color: #667eea;
            font-size: 1.1rem;
            font-weight: bold;
        }

        /* Footer */
        .footer {
            background: #2d3748;
            color: white;
            padding: 60px 0 20px;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-section h3 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }

        .footer-section p {
            color: #a0aec0;
            line-height: 1.6;
            margin-bottom: 15px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #a0aec0;
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-links a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid #4a5568;
            padding-top: 20px;
            text-align: center;
            color: #a0aec0;
        }

        .footer-bottom-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* Mobile Optimization */
        @media (max-width: 768px) {
            .top-bar-content {
                flex-direction: column;
                gap: 10px;
            }

            .contact-info {
                display: none;
            }

            .header-content {
                padding: 0 15px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                gap: 0;
                box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            }

            .main-nav.active {
                display: flex;
            }

            .main-nav a {
                padding: 15px 20px;
                border-radius: 0;
                border-bottom: 1px solid #e2e8f0;
            }

            .mobile-menu-toggle {
                display: flex;
            }

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

            .hero-subtitle {
                font-size: 1.1rem;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .intro-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .intro-text h2 {
                font-size: 2rem;
            }

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

            .calculator-card {
                padding: 30px 25px;
            }

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

            .section-header h2 {
                font-size: 2rem;
            }

            .footer-bottom-content {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 480px) {
            .hero {
                padding: 60px 0;
            }

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

            .intro-section,
            .calculators-section,
            .benefits-section,
            .industries-section {
                padding: 60px 0;
            }

            .calculator-card {
                padding: 25px 20px;
            }
        }

        /* Animation for mobile menu */
        .mobile-menu-toggle.active span:nth-child(1) {
            transform: rotate(-45deg) translate(-5px, 6px);
        }

        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(45deg) translate(-5px, -6px);
        }