@font-face {
            font-family: 'Greycliff';
            src: local('Greycliff'); /* For local installation */
        }

        body {
            margin: 0;
            font-family: 'Greycliff', Arial, sans-serif;
            overflow: hidden;
        }
        .video-background {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: -1;
        }
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 20px;
            background-color: rgba(51, 51, 51, 0.8); /* Slightly transparent */
            color: white;
        }
        .navbar .logo {
            font-size: 24px;
            font-weight: bold;
            font-family: 'Greycliff', Arial, sans-serif;
        }
        .auth-button {
            background-color: #007bff;
            color: white;
            border: none;
            border-radius: 5px;
            padding: 10px 20px;
            font-size: 16px;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
            font-weight: bold;
            font-family: 'Greycliff', Arial, sans-serif;
        }
        .auth-button:hover {
            background-color: #0056b3;
        }
        .welcome-section {
            text-align: center;
            margin: 50px;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 1s forwards;
        }
        .welcome-section h1 {
            font-size: 100px;
            color: #333;
            display: inline-block;
            padding: 20px;
            border-radius: 8px;
            font-weight: bold;
            font-family: 'Greycliff', Arial, sans-serif;
        }
        .slogan {
            font-size: 36px;
            color: #333;
            font-weight: bold;
            margin-top: 20px;
            text-align: center;
            transform: translateY(-100%);
            opacity: 0;
            animation: slideIn 1s ease-out 1s forwards; /* 1s animation with 1s delay */
            font-family: 'Greycliff', Arial, sans-serif;
        }
        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @keyframes slideIn {
            from {
                transform: translateY(-100%);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }