:root {
            --primary: #00a3ff;
            --secondary: #ff4b4b;
            --accent: #00c9a7;
            --dark: #2d3748;
            --light: #f8fafc;
            --pro-gradient: linear-gradient(135deg, #00a3ff 0%, #00c9a7 100%);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            background: #f0f9ff;
            color: #334155;
            min-height: 100vh;
            position: relative;
            overflow-x: hidden;
        }
        
        body:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 500px;
            background: linear-gradient(135deg, #e6f7ff 0%, #f0f9ff 100%);
            z-index: -1;
            clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header */
        header {
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
        }
        
        .logo i {
            background: var(--pro-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        nav ul {
            display: flex;
            gap: 30px;
            list-style: none;
        }
        
        nav a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            transition: all 0.3s ease;
        }
        
        nav a:hover {
            color: var(--primary);
        }
        
        .auth-buttons {
            display: flex;
            gap: 15px;
        }
        
        .btn {
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }
        
        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }
        
        .btn-outline:hover {
            background: var(--primary);
            color: white;
        }
        
        .btn-primary {
            background: var(--primary);
            color: white;
            border: 2px solid var(--primary);
        }
        
        .btn-primary:hover {
            background: #0088cc;
            border-color: #0088cc;
        }
        
        /* Hero Section */
        .hero {
            text-align: center;
            padding: 60px 0 40px;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero p {
            font-size: 1.25rem;
            color: #64748b;
            max-width: 700px;
            margin: 0 auto 40px;
            line-height: 1.6;
        }
        
        .billing-toggle {
            display: inline-flex;
            background: #e2e8f0;
            border-radius: 50px;
            padding: 5px;
            margin-bottom: 40px;
        }
        
        .toggle-option {
            padding: 10px 25px;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s ease;
        }
        
        .toggle-option.active {
            background: white;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        }
        
        .savings-badge {
            background: #ffeb3b;
            color: #333;
            font-size: 0.8rem;
            padding: 3px 10px;
            border-radius: 20px;
            margin-left: 10px;
            font-weight: 600;
        }
        
        /* Pricing Cards */
        .pricing-cards {
            display: flex;
            gap: 25px;
            justify-content: center;
            margin-bottom: 80px;
        }
        
        .pricing-card {
            background: white;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            width: 100%;
            max-width: 360px;
            overflow: hidden;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .pricing-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
        }
        
        .popular-card {
            border-top: 5px solid var(--accent);
            box-shadow: 0 15px 40px rgba(0, 201, 167, 0.2);
        }
        
        .popular-badge {
            position: absolute;
            top: 20px;
            right: -10px;
            background: var(--accent);
            color: white;
            padding: 8px 25px;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: 5px;
            transform: rotate(45deg);
            width: 180px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0, 201, 167, 0.3);
        }
        
        .card-header {
            padding: 40px 30px 30px;
            text-align: center;
            border-bottom: 1px solid #e2e8f0;
        }
        
        .card-icon {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 30px;
        }
        
        .free .card-icon {
            background: #e0f2fe;
            color: #0284c7;
        }
        
        .pro .card-icon {
            background: linear-gradient(135deg, #e0f7ff 0%, #e0fff9 100%);
            color: var(--accent);
        }
        
        .business .card-icon {
            background: #ede9fe;
            color: #7c3aed;
        }
        
        .card-header h3 {
            font-size: 1.8rem;
            margin-bottom: 15px;
            color: var(--dark);
        }
        
        .price {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 5px;
        }
        
        .price sup {
            font-size: 1.5rem;
            top: -1.5rem;
        }
        
        .price sub {
            font-size: 1rem;
            bottom: 0;
            color: #64748b;
        }
        
        .card-body {
            padding: 30px;
        }
        
        .features-list {
            list-style: none;
            margin-bottom: 30px;
        }
        
        .features-list li {
            padding: 12px 0;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #f1f5f9;
        }
        
        .features-list li:last-child {
            border-bottom: none;
        }
        
        .features-list i {
            margin-right: 12px;
            font-size: 1.2rem;
            width: 24px;
            text-align: center;
        }
        
        .free .features-list i {
            color: #0284c7;
        }
        
        .pro .features-list i {
            color: var(--accent);
        }
        
        .business .features-list i {
            color: #7c3aed;
        }
        
        .tooltip {
            position: relative;
            display: inline-block;
            border-bottom: 1px dashed #94a3b8;
            cursor: help;
            margin-left: 5px;
        }
        
        .tooltip .tooltiptext {
            visibility: hidden;
            width: 220px;
            background-color: var(--dark);
            color: #fff;
            text-align: center;
            border-radius: 6px;
            padding: 10px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 14px;
            font-weight: normal;
        }
        
        .tooltip:hover .tooltiptext {
            visibility: visible;
            opacity: 1;
        }
        
        .card-footer {
            padding: 0 30px 30px;
        }
        
        .btn-block {
            display: block;
            width: 100%;
            text-align: center;
            padding: 15px;
            font-size: 1.1rem;
            font-weight: 600;
        }
        
        .pro .btn-block {
            background: var(--pro-gradient);
            color: white;
            border: none;
        }
        
        .pro .btn-block:hover {
            background: linear-gradient(135deg, #0093e6 0%, #00b894 100%);
        }
        
        /* Feature Comparison */
        .feature-comparison {
            background: white;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            padding: 40px;
            margin-bottom: 80px;
        }
        
        .section-title {
            text-align: center;
            font-size: 2.2rem;
            margin-bottom: 40px;
            color: var(--dark);
        }
        
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
        }
        
        .comparison-table th, 
        .comparison-table td {
            padding: 15px 20px;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        
        .comparison-table th {
            font-weight: 600;
            color: var(--dark);
            background: #f8fafc;
        }
        
        .comparison-table tr:last-child td {
            border-bottom: none;
        }
        
        .feature-name {
            font-weight: 500;
        }
        
        .feature-value {
            text-align: center;
            font-weight: 500;
        }
        
        .feature-value i {
            font-size: 1.4rem;
        }
        
        .fa-check {
            color: var(--accent);
        }
        
        .fa-xmark {
            color: #f87171;
        }
        
        /* FAQ Section */
        .faq-section {
            margin-bottom: 80px;
        }
        
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        
        .faq-item {
            background: white;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
            transition: all 0.3s ease;
        }
        
        .faq-item:hover {
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            transform: translateY(-3px);
        }
        
        .faq-item h3 {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
            color: var(--dark);
        }
        
        .faq-item i {
            color: var(--primary);
            font-size: 1.4rem;
            width: 30px;
        }
        
        .faq-item p {
            color: #64748b;
            line-height: 1.7;
            padding-left: 45px;
        }
        
        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .footer-column h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column li {
            margin-bottom: 12px;
        }
        
        .footer-column a {
            color: #cbd5e1;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .footer-column a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #475569;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        
        /* Responsive */
        @media (max-width: 992px) {
            .pricing-cards {
                flex-wrap: wrap;
            }
            
            .faq-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            nav {
                display: none;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
        }