:root {
            --primary-color: #ff6b35;
            --secondary-color: #004e89;
            --accent-color: #ffd166;
            --text-dark: #2d3047;
            --text-light: #f8f9fa;
            --bg-gradient: linear-gradient(135deg, #ff6b35 0%, #004e89 100%);
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #f8f9fa;
        }
        .logo-text {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            background: var(--bg-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1.5px;
        }
        .hero-section {
            background: var(--bg-gradient);
            color: white;
            padding: 4rem 0;
            border-radius: 0 0 30px 30px;
            margin-bottom: 3rem;
        }
        .nav-custom {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }
        .section-card {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            padding: 2.5rem;
            margin-bottom: 2.5rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
        }
        .section-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
        }
        h1, h2, h3 {
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        h1 {
            font-size: 2.8rem;
            color: white;
        }
        h2 {
            color: var(--secondary-color);
            font-size: 2.2rem;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 0.5rem;
        }
        h3 {
            color: var(--primary-color);
            font-size: 1.6rem;
            margin-top: 2rem;
        }
        .keyword-highlight {
            background-color: var(--accent-color);
            padding: 0.2rem 0.5rem;
            border-radius: 5px;
            font-weight: 700;
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .img-container {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            margin: 2rem 0;
        }
        .img-container img {
            width: 100%;
            height: auto;
            transition: transform 0.5s ease;
        }
        .img-container:hover img {
            transform: scale(1.03);
        }
        .content-section {
            margin-bottom: 3rem;
        }
        .nav-link-custom {
            color: var(--text-dark);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .nav-link-custom:hover {
            background-color: var(--primary-color);
            color: white;
        }
        footer {
            background: var(--secondary-color);
            color: white;
            padding: 3rem 0;
            margin-top: 4rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
            transition: all 0.3s ease;
            z-index: 1000;
        }
        .back-to-top:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.6);
            color: white;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .section-card {
                padding: 1.5rem;
            }
            .logo-text {
                font-size: 1.8rem;
            }
        }