:root {
            --brand: #2563eb;
            --brand-light: #3b82f6;
            --brand-dark: #1d4ed8;
            --accent: #22d3ee;
            --text: #0f172a;
            --text-light: #334155;
            --muted: #64748b;
            --light: #f8fafc;
            --lighter: #f1f5f9;
            --bg: #0b1220;
            --border: #e2e8f0;
            --success: #10b981;
            --radius: 12px;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        
        body {
            font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            color: var(--text);
            line-height: 1.6;
            background-color: var(--light);
        }
        
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.3;
        }
        
        .navbar {
            padding: 1rem 0;
            background: #fff;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .navbar-brand {
            font-weight: 800;
            font-size: 1.5rem;
        }
        
        .btn-brand {
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            padding: 0.625rem 1.5rem;
            border-radius: 8px;
            transition: all 0.2s ease;
        }
        
        .btn-brand:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        
        .btn-ghost {
            border: 1px solid var(--border);
            color: var(--text);
            font-weight: 600;
            padding: 0.625rem 1.5rem;
            border-radius: 8px;
            transition: all 0.2s ease;
        }
        
        .btn-ghost:hover {
            background: var(--lighter);
            border-color: #cbd5e1;
            transform: translateY(-2px);
        }
        
        .features-hero {
            background: radial-gradient(1200px 400px at 20% -10%, rgba(34, 211, 238, 0.15), transparent 60%),
                        radial-gradient(1000px 500px at 110% 10%, rgba(37, 99, 235, 0.10), transparent 60%),
                        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
            padding: 5rem 0 3rem;
            position: relative;
            overflow: hidden;
        }
        
        .features-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232563eb' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.5;
        }
        
        .section-title {
            font-weight: 800;
            margin-bottom: 1rem;
            position: relative;
        }
        
        .section-title.centered {
            text-align: center;
        }
        
        .section-title.centered::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--brand);
            margin: 1rem auto;
            border-radius: 2px;
        }
        
        .section-subtitle {
            color: var(--muted);
            font-size: 1.125rem;
            margin-bottom: 3rem;
            text-align: center;
        }
        
        .features-section {
            padding: 5rem 0;
        }
        
        .feature-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
            height: 100%;
            transition: all 0.3s ease;
            border: 1px solid var(--border);
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--brand-light);
        }
        
        .feature-icon {
            width: 70px;
            height: 70px;
            border-radius: 16px;
            background: rgba(37, 99, 235, 0.1);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.75rem;
            margin-bottom: 1.5rem;
        }
        
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .feature-list li {
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
        }
        
        .feature-list li i {
            margin-right: 0.75rem;
            color: var(--success);
        }
        
        .demo-section {
            background: var(--lighter);
            padding: 5rem 0;
        }
        
        .demo-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 2rem;
            box-shadow: var(--shadow);
        }
        
        .tab-content {
            padding: 2rem 0;
        }
        
        .nav-pills .nav-link {
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
            color: var(--text);
            font-weight: 500;
            transition: all 0.2s ease;
        }
        
        .nav-pills .nav-link.active {
            background: var(--brand);
            color: white;
        }
        
        .nav-pills .nav-link:hover:not(.active) {
            background: var(--lighter);
        }
        
        .use-cases {
            padding: 5rem 0;
        }
        
        .use-case-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 2rem;
            box-shadow: var(--shadow);
            height: 100%;
            transition: all 0.3s ease;
            border: 1px solid var(--border);
        }
        
        .use-case-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        
        .use-case-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: rgba(37, 99, 235, 0.1);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 1.5rem;
        }
        
        .integration-section {
            background: linear-gradient(135deg, #e0f2fe 0%, #eef2ff 100%);
            padding: 5rem 0;
        }
        
        .integration-logo {
            height: 50px;
            margin: 1rem;
            opacity: 0.7;
            transition: all 0.3s ease;
        }
        
        .integration-logo:hover {
            opacity: 1;
            transform: scale(1.05);
        }
        
        .footer {
            background: var(--bg);
            color: #e2e8f0;
            padding: 4rem 0 2rem;
        }
        
        .footer a {
            color: #cbd5e1;
            text-decoration: none;
            transition: all 0.2s ease;
        }
        
        .footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        
        .footer-brand {
            font-weight: 800;
            font-size: 1.5rem;
            color: white;
            margin-bottom: 1rem;
            display: inline-block;
        }
        
        .footer-desc {
            color: #94a3b8;
            margin-bottom: 2rem;
            max-width: 300px;
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            margin-top: 3rem;
        }
        
        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: #cbd5e1;
            transition: all 0.3s ease;
        }
        
        .social-links a:hover {
            background: var(--brand);
            color: white;
            transform: translateY(-3px);
        }
        
        .made-with-love {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            color: #94a3b8;
        }
        
        @media (max-width: 768px) {
            .features-hero {
                padding: 3rem 0 2rem;
                text-align: center;
            }
            
            .features-section, .demo-section, .use-cases, .integration-section {
                padding: 3rem 0;
            }
            
            .footer {
                text-align: center;
            }
            
            .footer-desc {
                margin-left: auto;
                margin-right: auto;
            }
            
            .social-links {
                justify-content: center;
            }
        }