@media screen and (max-width: 1280px) {
	.show-sm {
		display: block;
	}
	.speaker {
		margin: 0 20px 30px;
	}
	.title-button {
		width: 20%;
		display: inline-block;
	}
	.topsec {
	    padding-top: 50px;
    	height: calc(100vh - 140px);
	}
	.mainbg::before {
		background-position: 0 0;
	}
}
@media screen and (max-width: 768px) {
	.hide-sm {
		display: none;
	}
	
	body {
		font-size: 1rem;
	}
	.navtop.container {
		padding: 1em 2em 0.4em 2em;
	}
	.hbg-btn {
		display: inline-block;
	}
	.socaillinks {
		margin-top: -7px;
    	padding: 0;
    	margin-left: 20px;
	}
	.navbar {
	    padding-top: 25px;
	    padding-bottom: 10px;
	    margin-left: -70px;
	}
	.navbar.text-right {
		text-align: center;
	}
	header {
		overflow: hidden;
		height: auto;
		max-height: 55px;
	}
	header.active {
		background-color: #0070a4;
		max-height: 500px;
	}
	header.detachedHide .navbar {
	}
	.navbar.show,
	header.detached.show .navbar.show {
	}
	header .logo img {
	    height: 30px;
	    max-width: none;
	    position: absolute;
	    left: 20px;
	    top: 13px;
	}
	header.detached {
		max-height: 55px;
	}
	header.detached.active {
		max-height: 500px;
	}
	header.detached .logo img {
	    height: 30px;
	}
	.navbar li {
	    display: block;
	    padding: 10px 20px;
	    margin-bottom: 0;
	    margin-top: 10px;
	}
	.navbar li + li {
		margin-left: 0;
	}
	#top-sec .container {
	    height: 100vh;
	    padding: 20px;
	}
	.mainbg::before {
		background: url('../img/main_bg.jpg') no-repeat center right;
		background-position: 80% 0;
	}
	.mainbg::after {
		background: url('../img/main_bg_2.png') no-repeat left bottom;
		background-size: 127%;
    	background-position: 0 120%;
	}
	.topsec .text-right {
		text-align: center;
	}
	#desc-sec .container {
	    padding: 2em 1.3em;
	}
	#desc-sec .text-center {
		text-align: left;
	}
	/* text */
	.t-xlarge {
		font-size: 1.6em; /* 30px */
	}
	.t-large {
		font-size: 1.4em; /* 26px */
	}
	.t-midlarge {
		font-size: 1.2em; /* 22px */
	}
	.t-mid {
		font-size: 1em; /* 18px */
	}
	.t-small {
		font-size: 0.9em; /* 16px */
	}
	.t-xsmall {
		font-size: 0.8em; /* 14px */
	}
	
	.section-title {
		font-size: 26px;
	}

	/* layout */
	.container {
		padding: 4em 1.3em;
	}
	.bg-w-sm {
		padding: 15px;
		margin: 0 -15px;
	}
	.text-center-sm {
		text-align: center;
	}
	.mx-auto-sm {
		margin-left: auto;
		margin-right: auto;
	}

	.main-bg-img {
		position: absolute;
		left: 0;
		right: 0;
		margin: auto;
		top: 100px;
	}
	.topsec {
		padding-top: 0;
		min-height: 100vh;
	}
	.hbg-btn {
		margin-top: 0;
		height: 44px;
	}
	.speaker {
		margin-bottom: 0px;
	}
	.slider {
	}
	.speaker-slick .speaker {
		margin: 0 50px;
	}
	.speaker-info {
	    width: 120%;
	    margin-left: -10%;
	}
	.speaker-info.wide {
		width: 124%;
	    margin-left: -12%;
	}
	#speaker-day-btn {
		margin-bottom: 2.5em;
	}
	.long-btn {
	    height: 135px;
	    width: 36px;
	    padding: 7px;
	    letter-spacing: 3px;
	    font-size: 19px;
	}
	.top-btn {
		width: 36px;
		height: 36px;
		padding: 16px 8.5px;
	}
	.top-btn::before {
		width: 18px;
		top: 8px;
	}
	.top-btn::after {
		width: 9px;
		height: 9px;
	}
	.news-card {
		width: 200px;
		max-width: 200px;
		height: 200px;
    	margin-bottom: 30px;
	}
	.slider-news {
		max-width: 240px;
		margin: 0 auto;
	}
	.news-slick {
	}
	.flex-space {
		display: block;
		text-align: center;
	}
	.hideontop.show {
		opacity: 0.6;
	}
	.card-header {
		padding: 10px 15px; 
	}
	.card-header .event-col {
		padding-left: 20px;
	}
	.card-content {
		padding: 5px;
	}
	.ml-2 {
		margin-left: 6px;
	}
	#signup-sec .container {
		padding: 4em 0 100px;
	}
	.form-block {
		padding: 50px 30px 50px;
	}
	.form-block::before {
		width: 85%;
		right: 0;
    	margin: -94px auto;
	}
	.form-card {
		padding-bottom: 80px;
	}
	.event-cate {
	    width: 100%;
	    display: block;
	    margin: 0px 5px 0px -5px;
	}
	.time-col {
		width: 60px;
		min-width: 50px;
		padding: 0px 0 0px 1px;
	}
	.multi-events-row {
		display: block;
	}
	.multi-events-row > div {
		margin-bottom: 10px;
		padding: 0;
		margin: 5px 5px 10px;
	}
	.multi-events-row > div:last-of-type{
		padding-right: 0;
	}
	.multi-events-row > div:last-of-type .event-cate {
		width: 100%;
	}
	.hideontop {
	    transform: scale(0.75);
	    right: 0;
	}
	.hideontop.show {
	    opacity: 0.8;
	    transform: scale(0.75);
	}
	
	.slick-arrow {
		top: -10px;
		margin: 0;
    	bottom: 0;
    	margin: auto;
	}
	
	.news-slick .slick-arrow {
		top: 0px;
	}
	.slick-arrow.slick-prev {
		transform: rotate(-45deg);
		left: 15px;
	}
	.slick-arrow.slick-next {
		transform: rotate(135deg);
		right: 15px;
	}
	.slider-news .slick-arrow.slick-prev {
		left: -30px;
	}
	.slider-news .slick-arrow.slick-next {
		right: -30px;
	}
	.slider-news .slick-dots {
		top: -38px;
	}
	.main-btn.bg-blue {
		width: 32%;
    	font-size: 22px;
    	margin: 0;
	}
	.dayBtn {
		text-align: center;
		margin-top: 0;
	}
	.dayBtn::after {
		margin-top: -1px;
	}
	.time-dash {
	    display: block;
	    transform: rotate(90deg) translate(0px, -31px) scale(2, 1.2);
	    height: 5px;
	    width: 5px;
	    margin: 0;
	}
	#expo-sec .flex img + img {
		margin-top: 30px;
	}
	footer {
		margin-top: -1px;
	}
	footer .container {
		text-align: center;
	}
	footer .container span {
		display: block;
		margin-top: 2em;
	}
	footer .container span#count-people {
		display: inline-block;
		margin-top: 0;
	}
	.logo {
		margin-left: 0;
	}
	.form-item .d-cell {
		min-width: 85px;
	}
	.pt-4 { padding-top: 5em; }
	
	.popup-img {
		display: block;
		text-align: center;
		margin: 0 auto 20px;
	}
	#popup-world-3 .popup-img {
		width: 160px;
		min-width: 160px;
	}
	.popup-block p {
		padding-right: 0px;
	}
	.textblock {
		max-height: 150px;
	}
	.wide-btn + .wide-btn {
		margin-left: 0;
		margin-top: 15px;
	}

}