:root {
            --bg-color: #0f172a;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --accent: #6366f1;
            --accent-hover: #4f46e5;
            --card-bg: #1e293b;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-main);
            line-height: 1.6;
        }

        /* Navigation */
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 50px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .logo {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -1px;
            color: white;
        }

        .logo span {
            color: var(--accent);
        }

        .nav-btn {
            background-color: transparent;
            color: var(--text-main);
            border: 1px solid var(--accent);
            padding: 10px 20px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
        }

        .nav-btn:hover {
            background-color: var(--accent);
        }

        /* Hero Section */
        .hero {
            text-align: center;
            padding: 100px 20px;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 20px;
            background: linear-gradient(to right, #fff, #94a3b8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 40px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: flex;
            align-items: center;
            gap: 10px;
            background-color: var(--accent);
            color: white;
            padding: 15px 30px;
            text-decoration: none;
            border-radius: 12px;
            font-weight: 600;
            font-size: 16px;
            transition: background-color 0.3s, transform 0.2s;
        }

        .btn:hover {
            background-color: var(--accent-hover);
            transform: translateY(-2px);
        }

        .btn-secondary {
            background-color: var(--card-bg);
            border: 1px solid #334155;
        }

        .btn-secondary:hover {
            background-color: #334155;
        }

        /* Features Section */
        .features {
            padding: 80px 20px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }

        .feature-card {
            background-color: var(--card-bg);
            padding: 30px;
            border-radius: 16px;
            border: 1px solid #334155;
            transition: transform 0.3s;
        }

        .feature-card:hover {
            transform: translateY(-5px);
        }

        .feature-icon {
            font-size: 32px;
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 15px;
        }

        /* Footer */
        footer {
            text-align: center;
            padding: 40px 20px;
            border-top: 1px solid #334155;
            color: var(--text-muted);
            margin-top: 50px;
        }

        .footer-links {
            margin-top: 15px;
        }

        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            margin: 0 10px;
            font-size: 14px;
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero h1 { font-size: 36px; }
            nav { padding: 20px; }
            .cta-buttons { flex-direction: column; }
        }