body {
	background-color: #004d99;
	color: #ffffff;
	scroll-padding-top: 70px; 
}
.container {max-width: 1200px;}

.navbar {background-color: rgba(0, 0, 0, 0.3); backdrop-filter: blur(5px);}
.navbar-brand {
	color: #ffffff !important;
	padding: 0; 
}
.navbar-brand img {
	height: 40px; 
	width: auto;
	vertical-align: middle;
}
.nav-link {transition: all 0.3s ease; margin: 0 5px; padding: 5px 15px; border-radius: 8px; text-align: center;}
.nav-btn-left {background-color: #ffffff !important; color: #004d99 !important; font-weight: bold;}
.nav-btn-left:hover {background-color: #dc3545 !important; color: #ffffff !important;}
.nav-btn-right {background-color: transparent !important; border: 1px solid #ffffff; color: #ffffff !important;}
.btn-register {background-color: #dc3545 !important; color: #ffffff !important; border: 1px solid #dc3545; padding: 5px 15px; border-radius: 8px; font-weight: bold; display: inline-block;}
.navbar-nav .nav-item .btn-register {margin-left: 10px; margin-top: 0;}

.navbar-toggler {
	border-color: #ffffff !important; 
}
.navbar-toggler-icon {
	filter: invert(1) grayscale(100%) brightness(200%);
}

@media (max-width: 991.98px) {
	.nav-link {margin: 5px 0;}
	.nav-btn-left, .nav-btn-right, .btn-register {width: 100%; display: block; margin-bottom: 5px;}
	#register-form {
		align-items: flex-start;
	}
	.main-wrapper {
		flex-direction: column;
		width: 100%;
		min-height: auto;
		border-radius: 0;
		box-shadow: none;
	}
	.left-panel, .right-panel {
		flex: none;
		width: 100%;
		padding: 30px 20px;

		justify-content: flex-start; 
	}
}
.hero-section {position: relative; overflow: hidden; padding-top: 100px; padding-bottom: 100px; text-align: center; min-height: 700px;}
.hero-background-slide {position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 1s ease-in-out;}
.hero-background-slide::before {
	content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
	background-image: linear-gradient(to bottom, rgba(0, 77, 153, 0.1) 0%, rgba(0, 77, 153, 1) 100%);
	z-index: 1; 
}
.hero-background-slide img {width: 100%; height: 100%; object-fit: cover; display: block; position: absolute; z-index: 0;}
.hero-background-slide.active {opacity: 1;}
.hero-content {position: relative; z-index: 10;}
#about-location {
	padding: 50px 0; position: relative; overflow: hidden; min-height: 800px; 
	display: block; 
}
#about-location .container {
	display: flex; flex-direction: column; min-height: 700px; justify-content: space-between; padding-top: 0; padding-bottom: 0;
}
#about-location-bg {
	position: absolute; top: 0; left: 0; width: 100%; height: 100%;
	background-image: 
		linear-gradient(to right, rgba(0, 77, 153, 1) 0%, rgba(0, 77, 153, 1) 40%, rgba(0, 77, 153, 0.1) 80%, rgba(0, 77, 153, 0) 100%),
		url('/assets/img/Proyeksi-Ekonomi-2024-170124-ysw-1-1200.jpg');
	background-size: cover;
	background-position: center right; 
	z-index: 1;
}
.about-location-text {
	position: relative; z-index: 5; color: #ffffff; text-align: left;
	margin-top: auto; margin-bottom: auto; flex-grow: 1; 
	display: flex; flex-direction: column; justify-content: center;
}
.location-main-text {font-size: 40px; line-height: 1.2; font-weight: bold;}
.location-small-text {font-size: 18px; max-width: 450px;}
#about-content {
	background-image: linear-gradient(to right, rgba(0, 77, 153, 0.7) 0%, rgba(0, 77, 153, 0.2) 100%);
	padding: 50px 0; color: #000000;
}
.content-box {background-color: #ffffff; padding: 30px; border-radius: 20px; box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);}
.content-title-container {display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; padding: 0 10px;}
.content-title-container .logo {width: auto; height: 50px; flex-shrink: 0;}
.content-title {font-size: 24px; font-weight: bold; color: #000000; text-align: center; flex-grow: 1; margin: 0 20px;}
.content-subtitle {font-size: 16px; color: #d33333; text-align: center; margin-bottom: 20px;}
.content-body {font-size: 14px; line-height: 1.6; text-align: justify;}
.content-body ul {margin-top: 15px; padding-left: 20px;}
#speakers, #sessions {background-color: #ffffff; color: #000000; padding: 50px 0;}
#speakers h2 {color: #000000 !important;}
.session-item {background-color: #004d99; color: #ffffff; margin-bottom: 20px; padding: 15px 20px; border-radius: 15px; display: flex; align-items: center; position: relative; height: 100%;}
.session-number {position: absolute; top: 10px; right: 15px; font-size: 2.5rem; font-weight: bold; color: rgba(255, 255, 255, 0.3); line-height: 1;}
.session-item img {width: 100px; height: 67px; object-fit: cover; border-radius: 5px; margin-right: 15px;}
.speaker-card {background-color: #004d99; color: #ffffff; padding: 15px; border-radius: 10px; text-align: center; height: 100%;}
.speaker-card .img-container {width: 100%; height: 0; padding-bottom: 150%; position: relative; overflow: hidden; border-radius: 5px; margin-bottom: 10px;}
.speaker-card img {position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; margin: 0;}
.speaker-card p {color: #add8e6;}
#gallery {
	background-color: rgba(0, 0, 0, 0.4);
	padding: 20px 0 60px 0; 
	position: relative;
}
.gallery-card {
	background-color: transparent; 
	color: #ffffff;
	padding: 10px; 
	border-radius: 15px; 
	display: flex;
	align-items: center;
	justify-content: center;
}
.gallery-image-container {
	width: 100%;
	height: 0;
	padding-bottom: 66.67%; 
	position: relative;
	overflow: hidden;
	border-radius: 10px; 
	background-color: #ffffff;
	box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
.gallery-image-container img {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
}
.gallery-control-btn {
	opacity: 0;
	transition: opacity 0.3s ease;
	width: 5%; 
	margin-right: 10px; 
	margin-left: 10px;
}
#galleryCarousel:hover .gallery-control-btn {
	opacity: 1;
}
.gallery-control-btn .carousel-control-prev-icon,
.gallery-control-btn .carousel-control-next-icon {
	background-color: #003366; 
	padding: 20px;
	border-radius: 5px;
}
#galleryCarousel .carousel-indicators {
	bottom: -30px; 
}
#galleryCarousel .carousel-indicators button {
	width: 8px; 
	height: 8px;
	margin: 0 5px;
	padding: 0;
	border-radius: 50%;
	background-color: #add8e6; 
	opacity: 0.7;
	transition: opacity 0.3s ease;
}
#galleryCarousel .carousel-indicators button.active {
	opacity: 1;
	background-color: #ffffff; 
}
#sponsors {
	background-color: #004d99; 
	padding: 80px 0;
	text-align: center;
}
.sponsors-box-container {
	background-color: #ffffff;
	padding: 50px 20px;
	border-radius: 20px;
	max-width: 900px; 
	margin: 0 auto;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}
.sponsors-box-container h2 {
	color: #000000;
	margin-bottom: 40px;
	font-weight: bold;
}
.sponsor-tier {
	display: flex;
	justify-content: center;
	align-items: center;
	margin-bottom: 15px;
	flex-wrap: wrap; 
}
.sponsor-logo {
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: #ffffff; 
	border-radius: 15px; 
	margin: 10px;
	padding: 5px;
	flex-shrink: 0;
}
.sponsor-logo.gray {
	background-color: #dddddd; 
}
.sponsor-xl {width: 230px; height: 230px; font-size: 1.5rem;}
.sponsor-l {width: 150px; height: 150px; font-size: 1.1rem;}
.sponsor-m {width: 100px; height: 100px; font-size: 0.85rem;}
.sponsor-s {width: 75px; height: 75px; font-size: 0.7rem;}
.sponsor-logo img {
	width: 100%;
	border-radius: 15px;
}
.sponsor-xl img {
	width:170px;
}
@media (max-width: 991.98px) {
	.sponsor-xl {width: 140px; height: 140px;}
	.sponsor-l {width: 80px; height: 80px;}
	.sponsor-xl img {
		width:100px;
	}
	.sponsors-box-container {
	  padding: 50px 0;
	}
}
footer {background-color: #003366;}
.footer-col-left {text-align: left;}
#register-form {
	background-image: linear-gradient(to right, rgba(0, 77, 153, 0.7) 0%, rgba(0, 77, 153, 0.2) 100%);
	min-height: calc(100vh - 70px); 
	display: flex;
	align-items: center;    
	justify-content: center; 
	padding: 40px 0;
}
.main-wrapper {
	display: flex;
	width: 90%;
	max-width: 1200px;

	align-items: stretch; 
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
	border-radius: 10px;
	overflow: hidden;
}
.left-panel {
	background-color: #0770D9;
	color: #ffffff;
	flex: 1; 
	display: flex; 
	flex-direction: column;
	justify-content: center; 
	align-items: flex-start;
	padding: 40px;
	text-align: center;
	min-width: 300px;
}
.left-panel img {
	max-width: 80%;
	height: auto;
	margin-bottom: 20px;
}
.left-panel .logo-area {
	display: flex;
	flex-direction: column;
	align-items: center; 
	width: 100%;
}
.left-panel .event-details {
	margin-top: 30px;
	font-size: 1.1rem;
	line-height: 1.6;
	max-width: 350px;
}
.left-panel .event-details p {
	text-align: left; 
}
.left-panel .event-location {
	font-size: 1.2rem;
	font-weight: bold;
	margin-top: 10px;
}
.right-panel {
	background-color: #ffffff;
	flex: 1.5; 
	padding: 50px 40px;
	overflow-y: auto; 
}
.contact-group-title {
	font-size: 1.5rem;
	font-weight: bold;
	color: #000000;
	margin-top: 30px;
	margin-bottom: 20px;
	padding-bottom: 10px;
	border-bottom: 1px solid #ced4da;
}
.form-label {
	font-weight: bold;
	color: #000000;
}
.form-label sup {
	color: #dc3545;
}
.btn-submit {
	background-color: #000000;
	color: #ffffff;
	border: none;
	padding: 12px 40px;
	font-size: 1.1rem;
	font-weight: bold;
	border-radius: 5px;
	width: 100%;
}
.btn-submit:hover {
	background-color: #004d9a;
}
#scrollToTopBtn {
	display: none; 
	position: fixed; 
	bottom: 30px; 
	right: 30px; 
	z-index: 999; 
	border: none;
	outline: none;
	background-color: #dc3545; 
	color: white; 
	cursor: pointer;
	width: 50px; 
	height: 50px; 
	padding: 0; 
	line-height: 50px; 
	text-align: center; 
	border-radius: 50%; 
	font-size: 24px; 
	font-weight: bold; 
	box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
	transition: background-color 0.3s, transform 0.3s;
	opacity: 0.7;
}

#scrollToTopBtn:hover {
	background-color: #c82333; 
	transform: scale(1.1); 
	opacity: 1.0;
}
.gallery-thumbnail {
	cursor: pointer;
	overflow: hidden;
	border-radius: 8px;
	box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
	transition: transform 0.2s, box-shadow 0.2s;
	width: 100%;
	height: 0;
	padding-bottom: 66.67%;
	position: relative;
	margin-bottom: 20px;
	background-color: #003366;
}
.gallery-thumbnail:hover {
	transform: translateY(-5px);
	box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}
.gallery-thumbnail img {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.lightbox-modal .modal-dialog {
    max-height: 100vh;
    padding: 0 40px; 
    margin: 0 auto; 
    display: flex;
    align-items: center; 
}
.lightbox-modal .modal-content {
    background-color: transparent;
    border: none;
    width: 100%;
    max-height: 95vh; 
    overflow: hidden; 
}
.lightbox-modal .modal-body {
    padding: 0;
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column; 
    justify-content: center;
    align-items: center;
    
    flex-grow: 1; 
    height: 100%; 
}
.lightbox-modal img {
    max-width: 100%; 
    max-height: 85vh;
    width: auto;
    height: auto;
    display: block;
    object-fit: contain;
}
#lightboxCaption {
    position: static; 
    width: 100%; 
    margin: 0 auto;
    max-width: 90vw; 
    background: #000000;
    color: white;
    font-size: 0.9rem;
    text-align: left; 
    padding: 10px 15px;
    max-height: 150px; 
    overflow-y: auto;
    z-index: 1050; 
}
.lightbox-modal .btn-nav {
    position: absolute; 
    top: 50%;
    transform: translateY(-50%);
    z-index: 1055;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    color: white;
    padding: 15px;
    font-size: 24px;
    opacity: 0.8;
    transition: opacity 0.2s;
    border-radius: 5px;
}
.lightbox-modal .btn-close {
    position: absolute;
    top: 20px;
    right: 60px; 
    z-index: 1056;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
}
.lightbox-modal .btn-nav {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	z-index: 1055;
	background: rgba(0, 0, 0, 0.5);
	border: none;
	color: white;
	padding: 15px;
	font-size: 24px;
	opacity: 0.8;
	transition: opacity 0.2s;
	border-radius: 5px;
}
.lightbox-modal .btn-nav:hover {
	opacity: 1;
	background: rgba(0, 0, 0, 0.7);
}

.lightbox-modal .btn-prev {
	left: 20px;
}

.lightbox-modal .btn-next {
	right: 20px;
}
.lightbox-modal .btn-close {
	position: absolute;
	top: 20px;
	right: 20px;
	z-index: 1056;
	background: rgba(255, 255, 255, 0.8);
	border-radius: 50%;
}
@media (max-width: 767.98px) {
    .lightbox-modal .modal-dialog {
        padding: 0 10px !important; 
    }
    .lightbox-modal img {
        max-width: 95vw !important; 
        max-height: 75vh !important;
    }
    #lightboxCaption {
        max-width: 95vw !important; 
        padding: 8px 10px !important;
        font-size: 0.8rem;
    }
}