:root {
            --primary-blue: #1a73e8;
            --ocean-teal: #00bcd4;
            --marine-green: #4caf50;
            --coral-orange: #ff9800;
            --deep-purple: #673ab7;
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #e3f2fd 0%, #f3e5f5 100%);
        }
        .logo-text {
            font-family: 'Arial Rounded MT Bold', 'Arial', sans-serif;
            font-weight: 900;
            font-size: 2.2rem;
            background: linear-gradient(45deg, var(--primary-blue), var(--ocean-teal));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        .nav-custom {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 115, 232, 0.8), rgba(0, 188, 212, 0.8)), url('https://via.placeholder.com/1200x600') center/cover;
            color: white;
            padding: 100px 0;
            text-align: center;
        }
        .content-section {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            padding: 40px;
            margin: 30px 0;
        }
        h1, h2, h3 {
            color: var(--primary-blue);
            margin-bottom: 1.5rem;
        }
        h1 {
            font-size: 2.8rem;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
        }
        h2 {
            border-left: 5px solid var(--ocean-teal);
            padding-left: 15px;
            margin-top: 2.5rem;
        }
        h3 {
            color: var(--deep-purple);
            margin-top: 2rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e8f4fd, #f0f7ff);
            border-left: 4px solid var(--primary-blue);
            padding: 20px;
            border-radius: 0 10px 10px 0;
            margin: 25px 0;
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--ocean-teal);
            margin-bottom: 15px;
        }
        .img-fluid {
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
        }
        .img-fluid:hover {
            transform: scale(1.02);
        }
        .fact-bubble {
            background: var(--marine-green);
            color: white;
            padding: 15px 25px;
            border-radius: 50px;
            display: inline-block;
            margin: 10px;
            font-weight: bold;
            box-shadow: 0 4px 10px rgba(76, 175, 80, 0.3);
        }
        .nav-link {
            color: #555 !important;
            font-weight: 500;
            transition: all 0.3s ease;
            border-bottom: 2px solid transparent;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-blue) !important;
            border-bottom: 2px solid var(--primary-blue);
        }
        footer {
            background: linear-gradient(135deg, #2c3e50, #34495e);
            color: white;
            padding: 40px 0 20px;
        }
        .keyword-highlight {
            background: linear-gradient(120deg, #a8e6cf 0%, #dcedc1 100%);
            padding: 2px 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 60px 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            .content-section {
                padding: 25px;
            }
        }