* {
	margin: 0;
	padding: 0;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

h3 {
	font-family: 'Arial';
	font-size: 28px;
	letter-spacing: 1px;
	width: 100%;
	background: #2980b9;
	color: #FFF;
	padding: 15px;
	text-align: center;
	border-radius: 10px;
}

h4 {
	font-family: 'Arial';
	font-size: 28px;
	letter-spacing: 1px;
	width: 100%;
	background: #2980b9;
	color: #FFF;
	padding: 15px;
	text-align: center;
}

.alert {
	text-align: center;
	margin: 10px auto;
	width: 90%;
	color: #FFF;
	background: #b90707;
	border-radius: 5px;
}

/* ====== Configuración del CONTAINER LOGIN========= */
body,
html {
	margin: 0;
	padding: 0;
	width: 100%;
	height: 100%;
	background: #066087;
}

#container_login {
	background: #066087;
	display: flex;
	justify-content: center;
	align-items: center;
	min-height: 100vh;
	flex-direction: column;
}

#container_login form {
	background: #fff;
	width: 400px;
	padding: 10px;
	border-radius: 10px;
	box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

#container_login form img {
	margin: 13px auto;
	display: block;
}

#container_login input {
	width: 90%;
	padding: 15px;
	font-size: 19px;
	display: block;
	margin: 12px auto;
	border-radius: 10px;
	border: 1px solid #0c579e;
	text-align: center;
	color: rgb(73, 128, 179);
}

#container_login input[type="submit"] {
	background: #2980b9;
	color: #FFF;
	font-size: 20px;
	letter-spacing: 1px;
	border-radius: 10px;
	cursor: pointer;
	text-align: center;
}

/* Media query para pantallas grandes */
@media (min-width: 768px) {
	#container_login {
		background: #066087;
	}
}

/* Media query para pantallas pequeñas o móviles */
@media (max-width: 767px) {
	#container_login form {
		width: 90%;
	}

	#container_login input {
		font-size: 16px;
	}
}