* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a237e;
            --secondary: #ff6d00;
            --accent: #00e5ff;
            --dark: #0f172a;
            --light: #f8fafc;
            --gray: #94a3b8;
            --success: #10b981;
        }
        body {
            background-color: var(--dark);
            color: var(--light);
            line-height: 1.8;
            padding-bottom: 50px;
        }
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
        }
        header {
            background: linear-gradient(135deg, var(--primary), var(--dark));
            padding: 15px 0;
            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span {
            color: var(--secondary);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav a {
            color: var(--light);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
            font-size: 1.05rem;
        }
        nav a:hover {
            color: var(--accent);
        }
        .nav-buttons {
            display: flex;
            gap: 15px;
        }
        .btn {
            padding: 10px 20px;
            border-radius: 30px;
            border: none;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            text-align: center;
        }
        .btn-download {
            background-color: var(--secondary);
            color: white;
        }
        .btn-download:hover {
            background-color: #e05a00;
            transform: translateY(-2px);
            box-shadow: 0 4px 10px rgba(255,109,0,0.4);
        }
        .btn-login {
            background-color: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
        }
        .btn-login:hover {
            background-color: var(--accent);
            color: var(--dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 10px rgba(0,229,255,0.4);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--light);
        }
        .hero {
            padding: 60px 0;
            text-align: center;
            background: url('https://host.com/space-sovereign-chennai-hero.jpg') no-repeat center center;
            background-size: cover;
            border-radius: 10px;
            margin: 20px 0;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(15,23,42,0.7);
        }
        .hero-content {
            position: relative;
            z-index: 1;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            color: var(--accent);
            text-shadow: 0 0 10px rgba(0,229,255,0.5);
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 30px;
            color: var(--light);
        }
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .main-content {
            display: grid;
            grid-template-columns: 3fr 1fr;
            gap: 30px;
            margin: 40px 0;
        }
        .content-section {
            background-color: rgba(30,41,59,0.7);
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.3);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .sidebar-widget {
            background-color: rgba(30,41,59,0.7);
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.3);
        }
        .sidebar-widget h3 {
            color: var(--secondary);
            margin-bottom: 15px;
            font-size: 1.3rem;
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 10px;
        }
        h1, h2, h3, h4 {
            margin-bottom: 20px;
            color: var(--accent);
            font-weight: 700;
        }
        h1 {
            font-size: 2.5rem;
        }
        h2 {
            font-size: 2rem;
            border-left: 4px solid var(--secondary);
            padding-left: 15px;
            margin-top: 40px;
        }
        h3 {
            font-size: 1.5rem;
            color: var(--secondary);
        }
        h4 {
            font-size: 1.2rem;
            color: var(--success);
        }
        p {
            margin-bottom: 20px;
            font-size: 1.05rem;
            color: var(--light);
        }
        strong {
            color: var(--accent);
        }
        em {
            color: var(--secondary);
        }
        ul, ol {
            margin-bottom: 20px;
            padding-left: 30px;
        }
        li {
            margin-bottom: 10px;
        }
        .img-responsive {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 20px 0;
            box-shadow: 0 4px 10px rgba(0,0,0,0.5);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
        }
        th, td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid var(--gray);
        }
        th {
            background-color: var(--primary);
            color: var(--light);
        }
        tr:hover {
            background-color: rgba(26,35,126,0.2);
        }
        .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 20px 0;
        }
        .tag {
            background-color: var(--primary);
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        .tag a {
            color: var(--light);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .tag a:hover {
            color: var(--accent);
        }
        .categories {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 20px 0;
        }
        .category {
            background-color: var(--secondary);
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        .category a {
            color: var(--light);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .category a:hover {
            color: var(--dark);
        }
        .cta {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            padding: 40px;
            border-radius: 10px;
            text-align: center;
            margin: 40px 0;
            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
        }
        .cta h2 {
            color: var(--light);
            border: none;
            margin-bottom: 20px;
        }
        .cta p {
            max-width: 700px;
            margin: 0 auto 30px;
            color: var(--light);
        }
        footer {
            background-color: var(--primary);
            padding: 50px 0 20px;
            border-radius: 10px 10px 0 0;
            margin-top: 40px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-col h3 {
            color: var(--accent);
            margin-bottom: 20px;
            font-size: 1.3rem;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 10px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: var(--light);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-col a:hover {
            color: var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--gray);
            color: var(--gray);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            nav {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--primary);
                padding: 20px;
                box-shadow: 0 4px 10px rgba(0,0,0,0.3);
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 15px;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                max-width: 300px;
            }
            .logo {
                font-size: 1.5rem;
            }
        }