@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');
        
        :root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --primary-light: #818cf8;
            --secondary: #10b981;
            --warning: #f59e0b;
            --error: #ef4444;
            --background: #0f172a;
            --surface: #1e293b;
            --surface-light: #334155;
            --text: #f8fafc;
            --text-muted: #94a3b8;
            --text-light: #cbd5e1;
            --border: #334155;
            --glow: rgba(99, 102, 241, 0.5);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background: var(--background);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        /* Animated background */
        .bg-animation {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
        }
        
        .bg-grid {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0.1;
            background-image: 
                linear-gradient(rgba(99, 102, 241, 0.1) 1px, transparent 1px),
                linear-gradient(90deg, rgba(99, 102, 241, 0.1) 1px, transparent 1px);
            background-size: 50px 50px;
            animation: grid-move 20s linear infinite;
        }
        
        .bg-orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(100px);
            opacity: 0.1;
            animation: float 8s ease-in-out infinite;
        }
        
        .bg-orb:nth-child(1) {
            width: 400px;
            height: 400px;
            background: var(--primary);
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }
        
        .bg-orb:nth-child(2) {
            width: 300px;
            height: 300px;
            background: var(--secondary);
            top: 60%;
            right: 10%;
            animation-delay: -4s;
        }
        
        .bg-orb:nth-child(3) {
            width: 200px;
            height: 200px;
            background: var(--warning);
            bottom: 20%;
            left: 30%;
            animation-delay: -2s;
        }
        
        @keyframes grid-move {
            0% { transform: translate(0, 0); }
            100% { transform: translate(50px, 50px); }
        }
        
        @keyframes float {
            0%, 100% { transform: translate(0, 0) scale(1); }
            50% { transform: translate(30px, -30px) scale(1.1); }
        }
        
        /* Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(15, 23, 42, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            padding: 1rem 0;
        }
        
        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 2rem;
        }
        
        .logo {
            font-family: 'JetBrains Mono', monospace;
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary-light);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .logo::before {
            content: "A";
            display: inline-block;
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 8px;
            color: white;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }
        
        .nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
        }
        
        .nav-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.3s ease;
            font-weight: 500;
        }
        
        .nav-links a:hover {
            color: var(--primary-light);
        }
        
        /* Main content */
        main {
            position: relative;
            z-index: 10;
            padding-top: 80px;
        }
        
        /* Hero section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 2rem;
        }
        
        .hero-content {
            max-width: 800px;
            animation: fadeInUp 1s ease-out;
        }
        
        .hero h1 {
            font-size: clamp(2.5rem, 8vw, 4rem);
            font-weight: 700;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, var(--text), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        
        .hero p {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 3rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .email-form {
            background: rgba(30, 41, 59, 0.8);
            backdrop-filter: blur(20px);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }
        
        .form-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            color: var(--text-light);
        }
        
        .input-group {
            position: relative;
            margin-bottom: 1rem;
        }
        
        .email-input {
            width: 100%;
            padding: 1rem 1.5rem;
            padding-right: 120px;
            background: rgba(51, 65, 85, 0.5);
            border: 2px solid var(--border);
            border-radius: 12px;
            color: var(--text);
            font-size: 1rem;
            font-family: 'JetBrains Mono', monospace;
            transition: all 0.3s ease;
        }
        
        .email-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
        }
        
        .email-suffix {
            position: absolute;
            right: 1.5rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-family: 'JetBrains Mono', monospace;
            font-size: 1rem;
            pointer-events: none;
        }
        
        .pricing-display {
            margin: 1rem 0;
            padding: 1rem;
            background: rgba(51, 65, 85, 0.3);
            border-radius: 8px;
            border: 1px solid var(--border);
            display: none;
        }
        
        .pricing-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.5rem;
        }
        
        .pricing-info:last-child {
            margin-bottom: 0;
        }
        
        .pricing-label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        .pricing-value {
            font-weight: 600;
            font-family: 'JetBrains Mono', monospace;
        }
        
        .pricing-value.available {
            color: var(--secondary);
        }
        
        .pricing-value.taken {
            color: var(--error);
        }
        
        .pricing-value.checking {
            color: var(--warning);
        }
        
        .pricing-value.free {
            color: var(--secondary);
        }
        
        .pricing-value.premium {
            color: var(--primary-light);
        }
        
        .cta-button {
            width: 100%;
            padding: 1rem 2rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
        }
        
        .cta-button:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
        }
        
        .cta-button:disabled {
            background: var(--surface-light);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        
        /* Features section */
        .features {
            padding: 6rem 2rem;
            background: rgba(30, 41, 59, 0.3);
        }
        
        .features-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .features h2 {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text);
        }
        
        .features-subtitle {
            text-align: center;
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 4rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .feature-card {
            background: rgba(30, 41, 59, 0.6);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 2rem;
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 40px rgba(99, 102, 241, 0.2);
        }
        
        .feature-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }
        
        .feature-card h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--text);
        }
        
        .feature-card p {
            color: var(--text-muted);
            line-height: 1.6;
        }
        
        /* Pricing section */
        .pricing {
            padding: 6rem 2rem;
        }
        
        .pricing-container {
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
        }
        
        .pricing h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text);
        }
        
        .pricing-subtitle {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 4rem;
        }
        
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }
        
        .pricing-card {
            background: rgba(30, 41, 59, 0.6);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 2rem;
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
        }
        
        .pricing-card.featured {
            border-color: var(--primary);
            position: relative;
            transform: scale(1.05);
        }
        
        .pricing-card.featured::before {
            content: "Most Popular";
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        
        .pricing-card h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text);
        }
        
        .pricing-card .price {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-light);
            margin-bottom: 1rem;
        }
        
        .pricing-card .price-note {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        
        .pricing-features {
            list-style: none;
            margin-bottom: 2rem;
        }
        
        .pricing-features li {
            padding: 0.5rem 0;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .pricing-features li::before {
            content: "✓";
            color: var(--secondary);
            font-weight: bold;
        }
        
        /* Modal styles */
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(10px);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            padding: 2rem;
        }
        
        .modal.active {
            display: flex;
        }
        
        .modal-content {
            background: var(--surface);
            border-radius: 16px;
            max-width: 600px;
            width: 100%;
            max-height: 90vh;
            overflow-y: auto;
            border: 1px solid var(--border);
        }
        
        .modal-header {
            padding: 2rem 2rem 1rem;
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .modal-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
        }
        
        .modal-close {
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        
        .modal-close:hover {
            background: var(--surface-light);
            color: var(--text);
        }
        
        .modal-body {
            padding: 2rem;
        }
        
        .selected-email {
            background: rgba(99, 102, 241, 0.1);
            border: 1px solid var(--primary);
            border-radius: 12px;
            padding: 1.5rem;
            text-align: center;
            margin-bottom: 2rem;
        }
        
        .selected-email .email {
            font-family: 'JetBrains Mono', monospace;
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 0.5rem;
        }
        
        .selected-email .status {
            color: var(--secondary);
            font-size: 0.9rem;
        }
        
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            color: var(--text-light);
            font-weight: 500;
        }
        
        .form-input {
            width: 100%;
            padding: 0.75rem 1rem;
            background: rgba(51, 65, 85, 0.5);
            border: 2px solid var(--border);
            border-radius: 8px;
            color: var(--text);
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        
        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
        }
        
        .form-textarea {
            resize: vertical;
            min-height: 80px;
        }
        
        .plan-selection {
            margin: 2rem 0;
            padding: 1.5rem;
            background: rgba(51, 65, 85, 0.3);
            border-radius: 12px;
            border: 1px solid var(--border);
            display: none;
        }
        
        .plan-title {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--text);
        }
        
        .plan-options {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        
        .plan-option {
            padding: 1rem;
            background: rgba(30, 41, 59, 0.6);
            border: 2px solid var(--border);
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        
        .plan-option:hover {
            border-color: var(--primary);
        }
        
        .plan-option.active {
            border-color: var(--primary);
            background: rgba(99, 102, 241, 0.1);
        }
        
        .plan-name {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text);
        }
        
        .plan-price {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary-light);
            margin-bottom: 0.5rem;
        }
        
        .plan-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        
        .form-actions {
            display: flex;
            gap: 1rem;
            margin-top: 2rem;
        }
        
        .btn {
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            flex: 1;
        }
        
        .btn-primary:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
        }
        
        .btn-secondary {
            background: transparent;
            border: 2px solid var(--border);
            color: var(--text-muted);
        }
        
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary-light);
        }
        
        .btn:disabled {
            background: var(--surface-light);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        
        .message {
            padding: 1rem;
            border-radius: 8px;
            margin-top: 1rem;
            display: none;
        }
        
        .message.show {
            display: block;
        }
        
        .message.error {
            background: rgba(239, 68, 68, 0.1);
            border: 1px solid var(--error);
            color: var(--error);
        }
        
        .message.success {
            background: rgba(16, 185, 129, 0.1);
            border: 1px solid var(--secondary);
            color: var(--secondary);
        }
        
        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .fade-in-up {
            animation: fadeInUp 0.6s ease-out;
        }
        
        /* Responsive design */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .email-form {
                padding: 1.5rem;
            }
            
            .form-grid {
                grid-template-columns: 1fr;
            }
            
            .plan-options {
                grid-template-columns: 1fr;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
            
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            
            .pricing-card.featured {
                transform: none;
            }
            
            .nav-links {
                display: none;
            }
        }
        
        /* Loading states */
        .loading {
            position: relative;
            pointer-events: none;
        }
        
        .loading::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 20px;
            height: 20px;
            margin: -10px 0 0 -10px;
            border: 2px solid transparent;
            border-top: 2px solid var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }