:root {
            --primary: #00ff88;
            --primary-dark: #00cc6e;
            --secondary: #ff0066;
            --bg-dark: #0a0a0f;
            --bg-darker: #050508;
            --text-light: #ffffff;
            --text-muted: #a0a0b0;
            --card-bg: rgba(20, 20, 30, 0.8);
            --glow: rgba(0, 255, 136, 0.3);
        }

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

        body {
            font-family: 'Archivo', sans-serif;
            background: var(--bg-dark);
            color: var(--text-light);
            overflow-x: hidden;
            position: relative;
        }

        /* Animated background */
        .bg-animation {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            background: 
                radial-gradient(ellipse at 20% 30%, rgba(0, 255, 136, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 70%, rgba(255, 0, 102, 0.08) 0%, transparent 50%),
                linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
        }

        .grid-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(rgba(0, 255, 136, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 255, 136, 0.03) 1px, transparent 1px);
            background-size: 50px 50px;
            z-index: 1;
            pointer-events: none;
            animation: gridPulse 8s ease-in-out infinite;
        }

        @keyframes gridPulse {
            0%, 100% { opacity: 0.3; }
            50% { opacity: 0.6; }
        }

        .content {
            position: relative;
            z-index: 2;
        }

        /* Header/Navigation */
        header {
            padding: 2rem 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0, 255, 136, 0.1);
            animation: slideDown 0.8s ease-out;
        }

        @keyframes slideDown {
            from {
                transform: translateY(-100%);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        .logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 2rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -2px;
            position: relative;
            animation: logoGlow 3s ease-in-out infinite;
        }

        @keyframes logoGlow {
            0%, 100% {
                filter: drop-shadow(0 0 8px var(--glow));
            }
            50% {
                filter: drop-shadow(0 0 20px var(--glow));
            }
        }

        nav {
            display: flex;
            gap: 2rem;
            align-items: center;
        }

        nav a {
            color: var(--text-muted);
            text-decoration: none;
            font-weight: 400;
            transition: all 0.3s ease;
            position: relative;
        }

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

        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s ease;
        }

        nav a:hover::after {
            width: 100%;
        }

        /* Mobile menu */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--primary);
            font-size: 2rem;
            cursor: pointer;
            z-index: 1001;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 300px;
            height: 100vh;
            background: var(--card-bg);
            backdrop-filter: blur(20px);
            border-left: 1px solid rgba(0, 255, 136, 0.2);
            padding: 5rem 2rem 2rem;
            transition: right 0.4s ease;
            z-index: 1000;
            flex-direction: column;
            gap: 1.5rem;
            overflow-y: auto;
        }

        .mobile-menu.active {
            right: 0;
        }

        .mobile-menu a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 1.2rem;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(0, 255, 136, 0.1);
        }

        .mobile-menu .auth-buttons {
            flex-direction: column;
            width: 100%;
            gap: 1rem;
            order: -1;
            padding-bottom: 1.5rem;
            border-bottom: 2px solid rgba(0, 255, 136, 0.2);
            margin-bottom: 0.5rem;
        }

        .mobile-menu .btn {
            width: 100%;
            padding: 1rem 2rem;
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            z-index: 999;
        }

        .mobile-overlay.active {
            display: block;
        }

        .auth-buttons {
            display: flex;
            gap: 1rem;
        }

        /* Buttons */
        .btn {
            padding: 0.8rem 2rem;
            border: none;
            border-radius: 8px;
            font-family: 'Orbitron', sans-serif;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: var(--bg-dark);
            box-shadow: 0 4px 20px rgba(0, 255, 136, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 255, 136, 0.5);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary);
            color: var(--bg-dark);
            transform: translateY(-2px);
        }

        /* Hero Section */
        .hero {
            padding: 8rem 5% 6rem;
            text-align: center;
            animation: fadeInUp 1s ease-out 0.3s both;
        }

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

        .hero h1 {
            font-family: 'Orbitron', sans-serif;
            font-size: 4.5rem;
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, var(--text-light) 0%, var(--primary) 50%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -3px;
        }

        .hero p {
            font-size: 1.3rem;
            color: var(--text-muted);
            margin-bottom: 3rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .hero-buttons {
            display: flex;
            gap: 1.5rem;
            justify-content: center;
            margin-bottom: 4rem;
        }

        /* Pulse animation elements */
        .pulse-circle {
            width: 600px;
            height: 600px;
            border-radius: 50%;
            border: 2px solid rgba(0, 255, 136, 0.2);
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            animation: pulse 4s ease-out infinite;
            pointer-events: none;
            z-index: -1;
        }

        .pulse-circle:nth-child(2) {
            animation-delay: 1s;
        }

        .pulse-circle:nth-child(3) {
            animation-delay: 2s;
        }

        @keyframes pulse {
            0% {
                transform: translate(-50%, -50%) scale(0.8);
                opacity: 0;
            }
            50% {
                opacity: 0.3;
            }
            100% {
                transform: translate(-50%, -50%) scale(1.5);
                opacity: 0;
            }
        }

        /* Features Section */
        .features {
            padding: 4rem 5%;
            animation: fadeInUp 1s ease-out 0.6s both;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .feature-card {
            background: var(--card-bg);
            padding: 2.5rem;
            border-radius: 20px;
            border: 1px solid rgba(0, 255, 136, 0.1);
            backdrop-filter: blur(10px);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
            transform: scaleX(0);
            transition: transform 0.4s ease;
        }

        .feature-card:hover::before {
            transform: scaleX(1);
        }

        .feature-card:hover {
            transform: translateY(-10px);
            border-color: var(--primary);
            box-shadow: 0 20px 40px rgba(0, 255, 136, 0.2);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
        }

        .feature-card h3 {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--text-light);
        }

        .feature-card p {
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Stats Section */
        .stats {
            padding: 4rem 5%;
            text-align: center;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 3rem;
            margin-top: 3rem;
        }

        .stat-item {
            animation: fadeInUp 1s ease-out both;
        }

        .stat-item:nth-child(1) { animation-delay: 0.8s; }
        .stat-item:nth-child(2) { animation-delay: 1s; }
        .stat-item:nth-child(3) { animation-delay: 1.2s; }
        .stat-item:nth-child(4) { animation-delay: 1.4s; }

        .stat-number {
            font-family: 'Orbitron', sans-serif;
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.5rem;
        }

        .stat-label {
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 2px;
            font-size: 0.9rem;
        }

        /* Modal */
        .modal {
            display: none;
            position: fixed;
            z-index: 1000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(10px);
            animation: fadeIn 0.3s ease-out;
        }

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

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

        .modal-content {
            background: var(--card-bg);
            padding: 3rem;
            border-radius: 20px;
            max-width: 450px;
            width: 90%;
            border: 1px solid rgba(0, 255, 136, 0.2);
            position: relative;
            animation: slideInUp 0.4s ease-out;
        }

        @keyframes slideInUp {
            from {
                transform: translateY(50px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        .modal-close {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 2rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .modal-close:hover {
            color: var(--primary);
            transform: rotate(90deg);
        }

        .modal h2 {
            font-family: 'Orbitron', sans-serif;
            font-size: 2rem;
            margin-bottom: 2rem;
            text-align: center;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: var(--text-muted);
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .form-group input {
            width: 100%;
            padding: 1rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(0, 255, 136, 0.2);
            border-radius: 8px;
            color: var(--text-light);
            font-family: 'Archivo', sans-serif;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .form-group input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
        }

        .form-submit {
            width: 100%;
            margin-top: 1rem;
        }

        .form-footer {
            text-align: center;
            margin-top: 1.5rem;
            color: var(--text-muted);
        }

        .form-footer a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
        }

        .form-footer a:hover {
            text-decoration: underline;
        }

        /* Footer */
        footer {
            padding: 3rem 5%;
            border-top: 1px solid rgba(0, 255, 136, 0.1);
            text-align: center;
            color: var(--text-muted);
            margin-top: 6rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }

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

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

            nav {
                display: none;
            }

            header > .auth-buttons {
                display: none;
            }

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

            .mobile-menu {
                display: flex;
            }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            header {
                padding: 1.5rem 5%;
            }

            .hero {
                padding: 4rem 5% 3rem;
            }
        }

        /* Floating squares animation */
        .floating-square {
            position: fixed;
            width: 30px;
            height: 30px;
            border: 2px solid rgba(0, 255, 136, 0.3);
            animation: float 20s infinite ease-in-out;
            z-index: 1;
        }

        .floating-square:nth-child(1) {
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }

        .floating-square:nth-child(2) {
            top: 60%;
            left: 80%;
            animation-delay: 5s;
        }

        .floating-square:nth-child(3) {
            top: 40%;
            right: 20%;
            animation-delay: 10s;
        }

        @keyframes float {
            0%, 100% {
                transform: translateY(0) rotate(0deg);
                opacity: 0.3;
            }
            50% {
                transform: translateY(-100px) rotate(180deg);
                opacity: 0.6;
            }
        }