body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #007bff;
            color: #fff;
            margin: 0;
            padding: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
        }
        .container {
            background-color: #fff;
            color: #333;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
            max-width: 500px;
            width: 100%;
            text-align: center;
        }
        h1 {
            font-size: 2rem;
            font-weight: bold;
            font-style: italic;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            color: #007bff;
            margin-bottom: 20px;
        }
        .form-control {
            width: 100%;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            margin-bottom: 20px;
        }
        .btn {
            padding: 10px 20px;
            font-size: 1rem;
            color: #fff;
            background-color: #28a745;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            width: 100%;
            transition: background-color 0.3s;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .btn i {
            margin-right: 8px;
        }
        .btn:hover {
            background-color: #218838;
        }
        .alert {
            padding: 15px;
            margin-bottom: 20px;
            border-radius: 4px;
            color: #721c24;
            background-color: #f8d7da;
            border: 1px solid #f5c6cb;
        }
        #result {
            margin-top: 20px;
            font-size: 1.2rem;
 background-color: #07f041;
            color: #333;
            text-align: center;
            display: none; /* Inicialmente oculto */
            
            padding: 20px;
            border-radius: 10px;
            font-weight: bold;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
            animation: fadeIn 0.8s ease-in-out;
        }
        mark {
            background-color: #06aa2f;
            color: #fff;
            padding: 0 10px;
            font-size: 1.5rem;
            font-weight: bold;
            border-radius: 8px;
            display: inline-block;
            margin: 5px;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
        }
        #btnLimpar {
            margin-top: 20px;
            padding: 10px 20px;
            font-size: 1rem;
            background-color: #dc3545;
            color: #fff;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            width: 100%;
            transition: background-color 0.3s;
            display: none; /* Inicialmente oculto */
        }
        #btnLimpar:hover {
            background-color: #c82333;
        }
        .flex {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }
        .flex input {
            width: 80px;
            margin: 0 8px;
        }
        @keyframes fadeIn {
            0% {
                opacity: 0;
                transform: scale(0.9);
            }
            100% {
                opacity: 1;
                transform: scale(1);
            }
        }