body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 100%;
    max-width: 400px;
    box-sizing: border-box;
}

h1 {
    color: #007bff;
    margin-bottom: 20px;
}

input, button {
    width: 90%;
    padding: 10px;
    margin: 10px auto;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
    box-sizing: border-box;
    display: block;
}

button {
    background: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background: #0056b3;
}

#result input {
    text-align: center;
    font-weight: bold;
    color: #28a745;
}
.back-button {
	position: fixed;
	bottom: 20px;
	left: 20px;
	padding: 10px 15px;
	font-size: 16px;
	background-color: #007BFF;
	color: white;
	border-radius: 5px;
	text-decoration: none;
	transition: background 0.3s;
}
.back-button:hover {
	background-color: #0056b3;
}