/* CSS Variables */
        :root {
            --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --hero-bg: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
            --accent-blue: #667eea;
            --accent-purple: #764ba2;
            --text-primary: #1a202c;
            --text-secondary: #64748b;
            --glass-bg: rgba(255, 255, 255, 0.95);
            --glass-border: rgba(255, 255, 255, 0.2);
        }

        /* Reset & Base */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            overflow-x: hidden;
        }

        /* Hero Section */
        .hero-section {
            min-height: 100vh;
            background: var(--hero-bg);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .hero-background {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('images/landing/hero/hero-background.jpg');
            background-size: cover;
            background-position: center;
            opacity: .9;
        }

        .hero-background::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--hero-bg);
            opacity: 0.8;
        }

        .hero-content {
            position: relative;
            z-index: 10;
            text-align: center;
            max-width: 800px;
            padding: 0 24px;
        }

        .hero-content h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 24px;
            line-height: 1.2;
            color: white;
        }

        .hero-content h1 .gradient-text {
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-content h1 .emoji {
            color: #ffffff;
            display: inline-block;
            margin-right: 8px;
        }

        .hero-content p {
            font-size: 1.25rem;
            color: #e2e8f0;
            margin-bottom: 40px;
            font-weight: 400;
        }

        .hero-actions {
            display: flex;
            gap: 24px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .primary-cta, .secondary-cta {
            padding: 16px 32px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            text-decoration: none;
            display: inline-block;
            position: relative;
            overflow: hidden;
        }

        .primary-cta {
            background: var(--primary-gradient);
            color: white;
            border: none;
            box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
        }

        .primary-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(102, 126, 234, 0.5);
        }

        .secondary-cta {
            background: rgba(255, 255, 255, 0.1);
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(20px);
        }

        .secondary-cta:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }

        /* Feature Sections */
        .feature-section {
            padding: 120px 0;
            position: relative;
        }

        .feature-section:nth-child(even) {
            background: #f8fafc;
        }

        .feature-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            align-items: center;
        }

        .feature-section.reverse .feature-container {
            direction: rtl;
        }

        .feature-section.reverse .feature-content,
        .feature-section.reverse .feature-image {
            direction: ltr;
        }

        .feature-content h2 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 24px;
            line-height: 1.2;
        }

        .feature-content h2 .gradient-text {
            background: var(--primary-gradient);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .feature-content h2 .emoji {
            color: #667eea;
            filter: none;
            -webkit-text-fill-color: initial;
        }

        .feature-content p {
            font-size: 1.125rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .feature-image {
            background: var(--glass-bg);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(20px);
        }

        .feature-img {
            width: 100%;
            height: auto;
            border-radius: 12px;
        }

        /* Security compliance - CSP-safe classes */
        .modal-no-scroll {
            overflow: hidden !important;
        }

        .smooth-scroll {
            scroll-behavior: smooth;
        }

        .feature-placeholder {
            width: 100%;
            height: 300px;
            background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* Plans Section */
        .plans-section {
            padding: 120px 0;
            background: var(--hero-bg);
            position: relative;
        }

        .plans-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            text-align: center;
        }

        .plans-section h2 {
            font-size: 2.5rem;
            font-weight: 800;
            color: white;
            margin-bottom: 60px;
        }

        .plans-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 40px;
        }

        .plan-card {
            background: rgba(100, 116, 139, 0.8);
            border-radius: 20px;
            padding: 40px 32px;
            position: relative;
            border: 1px solid rgba(100, 116, 139, 0.3);
            backdrop-filter: blur(20px);
            transition: all 0.3s ease;
            opacity: 0.7;
        }

        .plan-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.15);
        }

        .plan-card.featured {
            transform: scale(1.05);
            border-color: var(--accent-blue);
            box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
            background-color: #64748b;
        }

        .plan-card.active {
            background: var(--glass-bg);
            border-color: var(--accent-blue);
            box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
            opacity: 1;
            transform: scale(1.02);
        }

        .plan-card.active h3 {
            color: var(--text-primary);
        }

        .plan-card.active .plan-features li {
            color: var(--text-secondary);
        }

        .plan-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary-gradient);
            color: white;
            padding: 8px 24px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 700;
        }

        .plan-badge.available {
            background: #10b981;
            color: white;
        }

        .plan-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #e2e8f0;
            margin-bottom: 16px;
        }

        .plan-price {
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--primary-gradient);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 24px;
        }

        .plan-features {
            list-style: none;
            margin-bottom: 32px;
        }

        .plan-features li {
            padding: 8px 0;
            color: #94a3b8;
            position: relative;
            padding-left: 24px;
        }

        .plan-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent-blue);
            font-weight: bold;
        }

        .plan-cta {
            width: 100%;
            padding: 16px 24px;
            background: rgba(100, 116, 139, 0.6);
            color: #94a3b8;
            border: 2px solid rgba(100, 116, 139, 0.4);
            border-radius: 12px;
            font-size: 16px;
            font-weight: 700;
            cursor: not-allowed;
            transition: all 0.3s ease;
        }

        .plan-cta-yes {
            width: 100%;
            padding: 16px 24px;
            color: #94a3b8;
            border: 2px solid rgba(100, 116, 139, 0.4);
            border-radius: 12px;
            font-size: 16px;
            font-weight: 700;
            transition: all 0.3s ease;
        }

        .plan-cta:hover {
            /* Disabled hover effect for coming soon */
            transform: none;
            box-shadow: none;
        }

        .plan-cta.active {
            background: var(--primary-gradient);
            color: white;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
        }

        .plan-cta.active:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(102, 126, 234, 0.4);
        }

        /* Use Cases Section */
        .use-cases-section {
            padding: 120px 0;
            background: #f8fafc;
        }

        .use-cases-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            text-align: center;
        }

        .use-cases-section h2 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 60px;
        }

        .use-cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 32px;
        }

        .use-case-card {
            background: white;
            border-radius: 20px;
            padding: 40px 24px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(102, 126, 234, 0.1);
            transition: all 0.3s ease;
        }

        .use-case-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.12);
        }

        .use-case-icon {
            font-size: 3rem;
            margin-bottom: 24px;
        }

        .use-case-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .use-case-card p {
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* FAQ Section */
        .faq-section {
            padding: 120px 0;
            background: white;
        }

        .faq-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .faq-section h2 {
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--primary-gradient);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 60px;
            text-align: center;
        }

        .faq-section h2 .gradient-text {
            background: var(--primary-gradient);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .faq-section h2 .emoji {
            color: #667eea;
            filter: none;
            -webkit-text-fill-color: initial;
        }

        .faq-item {
            border-bottom: 1px solid #e2e8f0;
            margin-bottom: 16px;
        }

        .faq-question {
            width: 100%;
            padding: 24px 0;
            background: none;
            border: none;
            text-align: left;
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: color 0.2s ease;
        }

        .faq-question:hover {
            color: var(--accent-blue);
        }

        .faq-icon {
            font-size: 1.5rem;
            color: var(--accent-blue);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding-bottom: 24px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Footer */
        .footer {
            background: var(--text-primary);
            color: white;
            padding: 60px 0 40px;
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            text-align: center;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 32px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.2s ease;
        }

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

        .footer-social {
            display: flex;
            justify-content: center;
            gap: 24px;
            margin-bottom: 32px;
        }

        .social-icon {
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #94a3b8;
            text-decoration: none;
            transition: all 0.2s ease;
        }

        .social-icon:hover {
            background: rgba(255, 255, 255, 0.2);
            color: white;
        }

        .footer-copyright {
            color: #64748b;
            font-size: 14px;
        }

        /* ==========================================================================
           Modal Styles
           ========================================================================== */
        .modal {
            display: none;
            position: fixed;
            z-index: 1000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(5px);
            animation: fadeIn 0.3s ease;
        }

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

        .modal-content {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            box-shadow: 
                0 32px 64px rgba(0, 0, 0, 0.2),
                0 16px 32px rgba(0, 0, 0, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.3);
            margin: 20px;
            max-width: 600px;
            width: 100%;
            max-height: 80vh;
            overflow-y: auto;
            position: relative;
            animation: slideInUp 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .modal-header {
            padding: 32px 40px 24px;
            border-bottom: 1px solid rgba(102, 126, 234, 0.1);
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
        }

        .modal-header h2 {
            font-size: 1.875rem;
            font-weight: 800;
            margin: 0;
            line-height: 1.2;
        }

        .modal-close {
            background: none;
            border: none;
            font-size: 2rem;
            color: #94a3b8;
            cursor: pointer;
            padding: 0;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.2s ease;
        }

        .modal-close:hover {
            background: rgba(102, 126, 234, 0.1);
            color: #667eea;
            transform: scale(1.1);
        }

        .modal-body {
            padding: 0 40px 40px;
        }

        .modal-body p {
            color: #64748b;
            line-height: 1.7;
            margin-bottom: 24px;
            font-size: 1rem;
        }

        .modal-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #1e293b;
            margin: 32px 0 16px 0;
            display: flex;
            align-items: center;
        }

        .modal-body h3:first-child {
            margin-top: 24px;
        }

        .modal-body h3::before {
            content: '';
            width: 4px;
            height: 20px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: 2px;
            margin-right: 12px;
        }

        .modal-body ul {
            list-style: none;
            padding: 0;
            margin: 16px 0 24px 0;
        }

        .modal-body ul li {
            padding: 12px 0;
            border-bottom: 1px solid #f1f5f9;
            color: #64748b;
            line-height: 1.6;
        }

        .modal-body ul li:last-child {
            border-bottom: none;
        }

        .modal-body ul li strong {
            color: #1e293b;
            font-weight: 600;
        }

        .modal-cta {
            text-align: center;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid rgba(102, 126, 234, 0.1);
        }

        .modal-cta .primary-cta {
            display: inline-block;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            text-decoration: none;
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1rem;
            transition: all 0.3s ease;
            box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
        }

        .modal-cta .primary-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(102, 126, 234, 0.4);
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        @keyframes slideInUp {
            from {
                opacity: 0;
                transform: translateY(30px) scale(0.95);
            }
            to {
                opacity: 1;
                transform: translateY(0) scale(1);
            }
        }

        /* ==========================================================================
           Responsive Design - Mobile First
           ========================================================================== */

        /* Tablet Styles */
        @media (max-width: 1024px) {
            .feature-container {
                grid-template-columns: 1fr;
                gap: 60px;
                text-align: center;
            }

            .feature-section.reverse .feature-container {
                direction: ltr;
            }

            .feature-content h2 {
                font-size: 2.25rem;
            }

            .hero-content h1 {
                font-size: 3rem;
            }

            .plans-grid {
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
                gap: 24px;
            }

            .use-cases-grid {
                grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            }
        }

        /* Mobile Landscape */
        @media (max-width: 768px) {
            .hero-content {
                padding: 0 20px;
            }

            .hero-content h1 {
                font-size: 2.5rem;
                margin-bottom: 20px;
            }

            .hero-content p {
                font-size: 1.125rem;
                margin-bottom: 32px;
            }

            .hero-actions {
                flex-direction: column;
                gap: 16px;
                align-items: center;
            }

            .primary-cta, .secondary-cta {
                width: 100%;
                max-width: 300px;
            }

            .feature-section {
                padding: 80px 0;
            }

            .feature-container {
                padding: 0 20px;
                gap: 40px;
            }

            .feature-content h2 {
                font-size: 2rem;
            }

            .feature-content p {
                font-size: 1rem;
            }

            .feature-image {
                padding: 24px;
            }

            .plans-section,
            .use-cases-section,
            .faq-section {
                padding: 80px 0;
            }

            .plans-container,
            .use-cases-container,
            .faq-container {
                padding: 0 20px;
            }

            .plans-section h2,
            .use-cases-section h2,
            .faq-section h2 {
                font-size: 2rem;
                margin-bottom: 40px;
            }

            .plan-card {
                padding: 32px 24px;
            }

            .plan-card.featured {
                transform: none;
            }

            .use-case-card {
                padding: 32px 20px;
            }

            .footer-links {
                gap: 20px;
            }
        }

        /* Mobile Portrait */
        @media (max-width: 480px) {
            .hero-content h1 {
                font-size: 2rem;
                line-height: 1.1;
            }

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

            .primary-cta, .secondary-cta {
                padding: 14px 24px;
                font-size: 15px;
            }

            .feature-section {
                padding: 60px 0;
            }

            .feature-container {
                padding: 0 16px;
                gap: 32px;
            }

            .feature-content h2 {
                font-size: 1.75rem;
                margin-bottom: 16px;
            }

            .feature-content p {
                font-size: 0.95rem;
                margin-bottom: 24px;
            }

            .feature-image {
                padding: 20px;
            }

            .plans-section,
            .use-cases-section,
            .faq-section {
                padding: 60px 0;
            }

            .plans-container,
            .use-cases-container,
            .faq-container {
                padding: 0 16px;
            }

            .plans-section h2,
            .use-cases-section h2,
            .faq-section h2 {
                font-size: 1.75rem;
                margin-bottom: 32px;
            }

            .plans-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .plan-card {
                padding: 24px 20px;
            }

            .plan-card.active {
                transform: none;
            }

            .plan-price {
                font-size: 2rem;
            }

            .use-cases-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .use-case-card {
                padding: 24px 16px;
            }

            .use-case-icon {
                font-size: 2.5rem;
                margin-bottom: 16px;
            }

            .faq-question {
                font-size: 1rem;
                padding: 20px 0;
            }

            .faq-answer {
                font-size: 0.9rem;
            }

            .footer {
                padding: 40px 0 32px;
            }

            .footer-container {
                padding: 0 16px;
            }

            .footer-links {
                flex-direction: column;
                gap: 16px;
                margin-bottom: 24px;
            }

            .footer-social {
                gap: 16px;
                margin-bottom: 24px;
            }

            .footer-copyright {
                font-size: 0.85rem;
                line-height: 1.5;
            }

            /* Mobile Modal Styles */
            .modal-content {
                margin: 10px;
                max-height: 90vh;
                border-radius: 16px;
            }

            .modal-header {
                padding: 24px 24px 20px;
            }

            .modal-header h2 {
                font-size: 1.5rem;
            }

            .modal-body {
                padding: 0 24px 32px;
            }

            .modal-close {
                width: 28px;
                height: 28px;
                font-size: 1.5rem;
            }
        }

        /* Extra Small Mobile */
        @media (max-width: 360px) {
            .hero-content {
                padding: 0 16px;
            }

            .hero-content h1 {
                font-size: 1.75rem;
            }

            .feature-container {
                padding: 0 12px;
            }

            .plans-container,
            .use-cases-container,
            .faq-container {
                padding: 0 12px;
            }

            .plan-card,
            .use-case-card {
                padding: 20px 16px;
            }

            .footer-container {
                padding: 0 12px;
            }
        }