body {
    font-size: 15pt;
}
.container {
	max-width: 800px;
	margin: 0 auto;
	padding: 20px;
	text-align: center;
}

h1 {
	margin-top: 0;
}

textarea {
	display: block;
	margin: 10px 0;
	width: 100%;
	resize: none;
	font-size: 18px;
	padding: 10px;
	border: 2px solid #ccc;
	border-radius: 4px;
}

label {
	display: block;
	margin-top: 10px;
}

input[type=range] {
	display: block;
	margin-bottom: 10px;
}

button[type=submit] {
	background-color: #4CAF50;
	color: white;
	padding: 12px 20px;
	border: none;
	border-radius: 4px;
	cursor: pointer;
}

button[type=submit]:hover {
	background-color: #45a049;
}

.loader {
	display: none;
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0,0,0,0.5);
	z-index: 9999;
}

.loader-inner {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	border: 6px solid #f3f3f3;
	border-top: 6px solid #3498db;
	border-radius: 50%;
	width: 40px;
	height: 40px;
	animation: spin 2s linear infinite;
}

@keyframes spin {
	0% { transform: rotate(0deg); }
	100% { transform: rotate(360deg); }
}