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

body,
html {
	height: 100%;
	font-family: 'Roboto', sans-serif;
	margin: 0;
	padding: 0;
}

.main-warranty {
	height: 100vh;
	margin: 0;
	font-family: 'Roboto', sans-serif;
	color: white;
	position: relative;
}

.main-warranty::before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(255, 255, 255, 0.1);
	z-index: 1;
}

/* Nội dung bên trong cần z-index cao hơn */
.main-warranty>* {
	position: relative;
	z-index: 2;
}

.overlay {
	position: absolute;
	top: 100%;
	left: 50%;
	transform: translate(-50%, 0);
	background-color: rgb(255 255 255 / 15%);
	padding: 30px;
	border-radius: 10px;
	text-align: center;
	max-width: 800px;
	width: 100%;
	color: #fff;
	z-index: 2;
}

.overlay-no-background{
	background-color: transparent;
}

.overlay-background{
	background-color: rgb(255 255 255 / 10%);
	color: #fff;
	padding: 1rem 0;
}

.form-control.form-search {
	border-radius: 0;
	padding: 15px;
	font-size: 16px;
}

.btn-check-warranty {
	border-radius: 0;
	padding: 8px 40px;
	font-weight: bold;
	font-size: 16px;
	background-color: #15c2fe;
    border: #15c2fe;
}
.btn-check-warranty:hover{
	background-color: #00aeeb;
	border: #00aeeb;
}

.logo {
	z-index: 2;
}

.heading {
	font-size: 3rem;
	font-family: 'Roboto', sans-serif;
	margin:0;
	font-weight: 700;
}
.box-logo{
	padding: 30px;
}
.input-group-custom {
	margin-bottom: 20px;
}

@media (max-width: 576px) {
	.heading {
		font-size: 2rem;
				font-weight: 700;
				letter-spacing: 0;
	}
	.space-box{
		padding-bottom: 30px;
	}
	.box-logo{
		padding-top: 60px;
	}
}