* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #000000 0%, #1e3a8a 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            padding: 0;
        }

        nav {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            padding: 20px 40px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        .nav-content {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            color: white;
            font-size: 1.8em;
            font-weight: bold;
            text-decoration: none;
        }

        .main-content {
            flex: 1;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .container {
            text-align: center;
            max-width: 500px;
            width: 100%;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        h1 {
            color: white;
            font-size: 3em;
            margin-bottom: 15px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        p {
            color: rgba(255, 255, 255, 0.95);
            font-size: 1.2em;
            margin-bottom: 40px;
            line-height: 1.6;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
        }

        .button-group {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .btn {
            padding: 15px 30px;
            font-size: 1.1em;
            border: none;
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 600;
            text-decoration: none;
            display: inline-block;
        }

        .btn-login {
            background: white;
            color: #1e3a8a;
            border: 2px solid white;
        }

        .btn-login:hover {
            background: #f0f0f0;
        }

        .btn-register {
            background: white;
            color: #1e3a8a;
            border: 2px solid white;
        }

        .btn-register:hover {
            background: #f0f0f0;
        }

        @media (max-width: 480px) {
            .container {
                padding: 40px 25px;
            }

            h1 {
                font-size: 2em;
            }

            p {
                font-size: 1em;
            }
        }