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

 :root {
    --primary-500: #8B5CF6;
    --primary-700: #7C3AED;
    --primary-100: #EDE9FE;
    --neutral-900: #111827;
    --neutral-600: #6B7280;
    --neutral-400: #D1D5DB;
    --neutral-200: #F9FAFB;
    --neutral-50: #FDF4FF;
    --success: #34D399;
    --warning: #FBBF24;
    --error: #F43F5E;
}

        body {
            font-family: 'Inter', sans-serif;
            line-height: 1.6;
            color: var(--neutral-900);
            background-color: var(--neutral-50);
            overflow-x: hidden;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        .header {
            background: var(--neutral-200);
            padding: 16px 0;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 87, 255, 0.08);
        }

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

        .logo {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary-500);
            text-decoration: none;
        }

        .nav {
            display: flex;
            list-style: none;
            gap: 32px;
        }

        .nav a {
            text-decoration: none;
            color: var(--neutral-600);
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav a:hover {
            color: var(--primary-500);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--neutral-600);
            cursor: pointer;
        }

        /* Hero Section */
        .hero {
            background: var(--neutral-50);
            padding: 160px 0 96px;
            text-align: center;
        }

        .hero h1 {
            font-size: 60px;
            font-weight: 700;
            line-height: 1.1;
            margin-bottom: 24px;
            color: var(--neutral-900);
        }

        .hero p {
            font-size: 20px;
            color: var(--neutral-600);
            margin-bottom: 48px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-primary {
            display: inline-block;
            background: var(--primary-500);
            color: var(--neutral-200);
            padding: 16px 32px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border: none;
            cursor: pointer;
            font-size: 16px;
        }

        .btn-primary:hover {
            background: var(--primary-700);
            transform: scale(1.03);
        }

        /* Sections */
        .section {
            padding: 96px 0;
        }

        .section-title {
            font-size: 40px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 16px;
            color: var(--neutral-900);
        }

        .section-subtitle {
            text-align: center;
            font-size: 18px;
            color: var(--neutral-600);
            margin-bottom: 64px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* About Section */
        .about {
            background: var(--neutral-200);
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .about-text {
            font-size: 18px;
            color: var(--neutral-600);
        }

        .about-features {
            display: grid;
            gap: 24px;
        }

        .feature-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-100);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-500);
            font-size: 20px;
        }

        /* Services Grid */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 64px;
        }

        .service-card {
            background: var(--neutral-200);
            padding: 32px;
            border-radius: 12px;
            box-shadow: 0 8px 24px rgba(0, 87, 255, 0.08);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 40px rgba(0, 87, 255, 0.12);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-500);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .service-card h3 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--neutral-900);
        }

        .service-card p {
            color: var(--neutral-600);
        }

        /* Testimonials */
        .testimonials {
            background: var(--neutral-200);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 64px;
        }

        .testimonial-card {
            background: var(--neutral-50);
            padding: 32px;
            border-radius: 12px;
            border-left: 4px solid var(--primary-500);
        }

        .testimonial-text {
            font-style: italic;
            margin-bottom: 16px;
            color: var(--neutral-600);
        }

        .testimonial-author {
            font-weight: 600;
            color: var(--neutral-900);
        }

        /* FAQ */
        .faq-item {
            background: var(--neutral-200);
            margin-bottom: 16px;
            border-radius: 12px;
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            padding: 24px;
            background: none;
            border: none;
            text-align: left;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            color: var(--neutral-900);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-answer {
            padding: 0 24px 24px;
            color: var(--neutral-600);
            display: none;
        }

        .faq-answer.active {
            display: block;
        }

        /* Contact Form */
        .contact-form {
            background: var(--neutral-200);
            padding: 64px;
            border-radius: 12px;
            margin-top: 64px;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-bottom: 24px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-group.full-width {
            grid-column: 1 / -1;
        }

        .form-label {
            font-weight: 500;
            margin-bottom: 8px;
            color: var(--neutral-900);
        }

        .form-input, .form-textarea {
            padding: 12px 16px;
            border: 1px solid var(--neutral-400);
            border-radius: 8px;
            font-size: 16px;
            transition: border-color 0.3s;
        }

        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary-500);
        }

        .form-textarea {
            resize: vertical;
            min-height: 120px;
        }

        /* Footer */
        .footer {
            background: var(--neutral-900);
            color: var(--neutral-400);
            padding: 64px 0 32px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-section h4 {
            color: var(--neutral-200);
            margin-bottom: 24px;
            font-size: 18px;
        }

        .footer-section a {
            color: var(--neutral-400);
            text-decoration: none;
            display: block;
            margin-bottom: 8px;
            transition: color 0.3s;
        }

        .footer-section a:hover {
            color: var(--primary-500);
        }

        .footer-bottom {
            border-top: 1px solid var(--neutral-700);
            padding-top: 32px;
            text-align: center;
        }

        /* Modal Styles */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(17, 24, 39, 0.6);
            backdrop-filter: blur(8px);
            z-index: 2000;
        }

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

        .modal-content {
            background: var(--neutral-200);
            padding: 32px;
            border-radius: 16px;
            max-width: 500px;
            width: 90%;
            max-height: 80vh;
            overflow-y: auto;
            position: relative;
        }

        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--neutral-600);
        }

        .modal h3 {
            margin-bottom: 24px;
            color: var(--neutral-900);
        }

        .modal p {
            margin-bottom: 16px;
            color: var(--neutral-600);
        }

        /* Newsletter Form */
        .newsletter-form {
            display: grid;
            gap: 16px;
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 16px;
        }

        .checkbox-group input[type="checkbox"] {
            width: 18px;
            height: 18px;
        }

        /* Success Message */
        .success-message {
            background: var(--success);
            color: white;
            padding: 16px;
            border-radius: 8px;
            margin-top: 16px;
            display: none;
        }

        .success-message.show {
            display: block;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav {
                display: none;
            }

            .mobile-menu-btn {
                display: block;
            }

            .hero h1 {
                font-size: 40px;
            }

            .about-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

            .section {
                padding: 64px 0;
            }
        }