body {
            margin: 0;
            font-family: Arial, sans-serif;
            background: url('daniel-olah-HNkgPFBShSw-unsplash.jpg') no-repeat center center fixed;
            background-size: cover;
            color: #E0E6E9; /* Light Grey-Blue for readability */
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        .content {
            flex: 1;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }
        .container {
            width: 100%;
            max-width: 800px;
            background-color: rgba(46, 57, 68, 0.9); /* Charcoal Blue with transparency */
            padding: 20px;
            border-radius: 5px;
            box-shadow: 0px 0px 15px rgba(0, 0, 0, 0.5);
            text-align: center;
        }
        h1 {
            font-size: 2rem;
            color: #70A9A1; /* Soft Teal */
        }
        p {
            font-size: 1rem;
            line-height: 1.5;
            color: #E0E6E9; /* Light Grey-Blue */
        }
        .captcha-button {
            background-color: #70A9A1; /* Soft Teal */
            color: #fff;
            border: none;
            padding: 10px 20px;
            font-size: 1rem;
            cursor: pointer;
            border-radius: 5px;
            transition: background-color 0.3s;
        }
        .captcha-button:hover {
            background-color: #5c8b85;
        }
        .email-reveal {
            margin-top: 20px;
            font-size: 1.2rem;
            color: #E0E6E9;
            display: none;
        }
        footer {
            background-color: rgba(46, 57, 68, 0.8); /* Charcoal Blue with transparency */
            color: #E0E6E9; /* Light Grey-Blue */
            text-align: center;
            padding: 10px;
            width: 100%;
        }