body {
	font-family: sans-serif;
	background-color: #f4f4f4;
	display: flex;
	justify-content: center;
	align-items: center;
	height: 100vh;
	margin: 0;
}

.login-container {
	background-color: #fff;
	padding: 20px 40px;
	border-radius: 5px;
	box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
	max-width: 400px;
	width: 100%;
}

.login_form_top h1 {
	text-align: center;
	margin-bottom: 10px;
}

.login_form_top p {
	text-align: center;
	font-size: 14px;
	color: #666;
	margin-bottom: 20px;
}

.form-group {
	margin-bottom: 15px;
}

.form-group label {
	display: block;
	font-weight: bold;
	margin-bottom: 5px;
}

.form-group input[type="text"],
.form-group input[type="password"] {
	width: 100%;
	padding: 10px;
	border: 1px solid #ccc;
	border-radius: 3px;
	box-sizing: border-box;
	/* paddingを含めた幅計算 */
}

button[type="submit"] {
	width: 100%;
	padding: 10px;
	background-color: #007bff;
	color: #fff;
	border: none;
	border-radius: 3px;
	cursor: pointer;
	font-size: 16px;
}

button[type="submit"]:hover {
	background-color: #0056b3;
}

.login_form_sub {
	text-align: center;
	margin-top: 15px;
}

.login_form_sub a {
	color: #007bff;
	text-decoration: none;
	font-size: 14px;
	margin: 0 10px;
}

.login_form_sub a:hover {
	text-decoration: underline;
}

.message {
	text-align: center;
	margin-bottom: 15px;
	font-weight: bold;
}

.message.success {
	color: #28a745;
}

.message.error {
	color: #dc3545;
}