/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Top Navigation Bar (Logos + Title + Dates) */
.top-nav {
    background: linear-gradient(135deg, #0d47a1 0%, #1565c0 50%, #1976d2 100%);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 1001;
}

.top-nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 auto;
    padding: 0;
    gap: 20px;
}

/* Brand Section (Logos + Title) */
.brand-section {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px 30px;
    /* background: rgba(255, 255, 255, 0.05); */
    /* border-right: 1px solid rgba(255, 255, 255, 0.1); */
}

.brand-logos {
    display: flex;
    align-items: center;
    gap: 15px;
}

.top-logo {
    height: 55px;
    width: auto;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.top-logo:hover {
    transform: scale(1.05);
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.brand-text h1 {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    margin: 0;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.brand-text p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
    line-height: 1.2;
    font-weight: 500;
}

/* Dates Banner Inline */
.dates-banner-inline {
    display: flex;
    align-items: stretch;
    flex: 1;
    overflow-x: auto;
    scrollbar-width: none;
}

.dates-banner-inline::-webkit-scrollbar {
    display: none;
}

.date-banner-item {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 18px 20px;
    position: relative;
    transition: all 0.3s ease;
    cursor: pointer;
    min-width: 160px;
    border-right: 1px solid rgba(255,255,255,0.15);
    overflow: hidden;
}

.date-banner-item:last-child {
    border-right: none;
}

.date-banner-item::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(45deg, 
        rgba(255, 255, 255, 0.9), 
        rgba(255, 215, 0, 0.9),
        rgba(255, 255, 255, 0.9),
        rgba(255, 215, 0, 0.9),
        rgba(255, 255, 255, 0.9)
    );
    background-size: 400% 400%;
    border-radius: inherit;
    opacity: 0;
    z-index: -1;
    filter: blur(10px);
    transition: opacity 0.4s ease;
}

.date-banner-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: inherit;
    z-index: -1;
}

.date-banner-item:hover::before {
    opacity: 1;
    animation: glowingBorder 3s linear infinite;
}

@keyframes glowingBorder {
    0% {
        background-position: 0% 50%;
        filter: blur(10px) brightness(1.3);
    }
    25% {
        background-position: 100% 50%;
        filter: blur(12px) brightness(1.5);
    }
    50% {
        background-position: 100% 100%;
        filter: blur(10px) brightness(1.3);
    }
    75% {
        background-position: 0% 100%;
        filter: blur(12px) brightness(1.5);
    }
    100% {
        background-position: 0% 50%;
        filter: blur(10px) brightness(1.3);
    }
}

.date-banner-item:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    z-index: 10;
}

/* Professional Color Scheme with High Contrast */
.date-banner-item.submission {
    background: #D84315;
    color: #FFFFFF;
}

.date-banner-item.notification {
    background: #C62828;
    color: #FFFFFF;
}

.date-banner-item.camera-ready {
    background: #6A1B9A;
    color: #FFFFFF;
}

.date-banner-item.registration {
    background: #4527A0;
    color: #FFFFFF;
}

.date-banner-item.conference {
    background: #2E7D32;
    color: #FFFFFF;
}

/* Date Banner Icons - White icons without background */
.dates-banner-inline .date-icon {
    font-size: 25px;
    opacity: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    background: transparent;
}

.dates-banner-inline .date-icon i {
    color: #FFFFFF;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.date-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.date-banner-item .date-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.3px;
    text-transform: uppercase;
    opacity: 1;
    line-height: 1.2;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.date-banner-item .date-value {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.3px;
    line-height: 1.2;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

/* Secondary Navigation Bar (Sticky Links) */
.header {
    position: sticky;
    top: 85px; /* Position after top-nav (logo height 55px + padding 15px top + 15px bottom) */
    width: 100%;
    background-color: white;
    /* background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    z-index: 1000; */
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    transition: all 0.3s ease;
    z-index: 1000;
}

.header.scrolled {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.navbar {
    padding: 0;
}

/* Prevent anchor overlap under fixed header */
section {
    scroll-margin-top: 140px;
}

#home {
    scroll-margin-top: 0;
    margin-top: 0;
}

#about {
    scroll-margin-top: 140px;
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

/* Mobile Dates Ticker - Hidden by default */
.mobile-dates-ticker {
    display: none;
}

.nav-menu {
    display: flex;
    gap: 0;
    list-style: none;
    justify-content: center;
    flex-wrap: wrap;
}

.nav-menu li {
    position: relative;
}

.nav-link {
    display: block;
    color: #1a237e;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    position: relative;
    padding: 18px 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-link:hover,
.nav-link.active {
    color: #1976d2;
    background: rgba(25, 118, 210, 0.08);
}

.nav-item .submenu {
    position: absolute;
    display: none;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.15);
    margin-top: 0.5rem;
    padding: 0.5rem 0;
    z-index: 1000;
}
.nav-item:hover .submenu { display: block; }
.submenu li { list-style: none; }
.submenu a {
    display: block;
    padding: 0.5rem 1rem;
    color: #1f2937;
    text-decoration: none;
}
.submenu a:hover { background: #f3f4f6; }

/* Committee */
.committee {
    background: #f8fafc;
}

.committee-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
    padding: 0 1rem;
}

.committee-tab-btn {
    padding: 12px 24px;
    border: 2px solid #e5e7eb;
    background: white;
    color: #666;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
}

.committee-tab-btn.active,
.committee-tab-btn:hover {
    border-color: #1e40af;
    background: #1e40af;
    color: white;
}

.committee-content {
    position: relative;
}

.committee-content .committee-group {
    display: none;
}

.committee-content .committee-group.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.committee .committee-group h3 { 
    color: #1e40af; 
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
    font-weight: 700;
    border-bottom: 3px solid #1e40af;
    padding-bottom: 0.5rem;
}

.committee .committee-list,
.advisory-committee-list { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 2rem;
}


.committee-card { 
    background: white; 
    border-radius: 12px; 
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.committee-icon {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.committee-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.committee-icon i {
    font-size: 4rem;
    color: white;
}



.committee-info {
    padding: 1.5rem;
}


.committee-info .name { 
    font-weight: 700;
    font-size: 1.1rem;
    color: #1e293b;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.committee-info .affiliation { 
    color: #64748b; 
    font-size: 0.95rem;
    line-height: 1.5;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.committee-info .affiliation::before {
    content: '📍';
    font-size: 0.9rem;
    margin-top: 0.1rem;
    flex-shrink: 0;
}

.committee-info .role { 
    font-size: 0.9rem; 
    color: #1e40af;
    font-weight: 600;
    margin-top: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: #eff6ff;
    border-radius: 6px;
    display: inline-block;
}

/* Responsive Design for Top Navigation */
@media (max-width: 1400px) {
    .header {
        top: 85px;
    }
    
    .brand-text h1 {
        font-size: 20px;
    }
    
    .brand-text p {
        font-size: 11px;
    }
    
    .date-banner-item {
        padding: 16px 18px;
        min-width: 140px;
    }
    
    .date-icon {
        font-size: 24px;
    }
    
    .date-banner-item .date-label {
        font-size: 9px;
    }
    
    .date-banner-item .date-value {
        font-size: 13px;
    }
}

@media (max-width: 1200px) {
    .header {
        top: 150px; 
    }
    
    .top-nav-container {
        flex-direction: column;
        gap: 0;
    }
    
    .brand-section {
        width: 100%;
        justify-content: center;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding: 20px;
    }
    
    .dates-banner-inline {
        width: 100%;
    }
    
    .nav-link {
        padding: 16px 20px;
        font-size: 13px;
    }
}

@media (max-width: 1200px) {
    .header {
        top: 85px;
    }
    
    .brand-section {
        flex-direction: column;
        text-align: center;
        gap: 15px;
        padding: 20px 15px;
    }
    
    .brand-logos {
        gap: 20px;
    }
    
    .top-logo {
        height: 45px;
    }
    
    .brand-text h1 {
        font-size: 18px;
    }
    
    .brand-text p {
        font-size: 10px;
    }
    
    .dates-banner-inline {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
    }
    
    .date-banner-item {
        flex-direction: column;
        text-align: center;
        gap: 8px;
        padding: 15px;
        min-width: 120px;
        scroll-snap-align: start;
    }
    
    .date-icon {
        font-size: 22px;
    }
    
    .date-info {
        gap: 4px;
    }
    
    .date-banner-item .date-label {
        font-size: 8px;
        letter-spacing: 1px;
    }
    
    .date-banner-item .date-value {
        font-size: 11px;
    }
    
    .nav-link {
        padding: 14px 16px;
        font-size: 12px;
    }
    
    section {
        scroll-margin-top: 160px;
    }
}

@media (max-width: 480px) {
    /* Extra compact for small phones */
    .brand-section {
        padding: 8px 12px;
        gap: 8px;
    }
    
    .top-logo {
        height: 35px;
    }
    
    .brand-text h1 {
        font-size: 13px;
    }
    
    .brand-text p {
        font-size: 8px;
    }
    
    .header {
        top: 51px;
    }
    
    .nav-menu {
        top: 106px;
        height: calc(100vh - 110px);
    }
    
    .nav-link {
        padding: 14px 20px;
        font-size: 14px;
    }
    
    section {
        scroll-margin-top: 120px;
    }
}

/* Responsive adjustments for committee cards */
@media (max-width: 1024px) {
    .committee .committee-list,
    .advisory-committee-list {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1.25rem;
    }
}

@media (max-width: 836px) {
    .committee .committee-list,
    .advisory-committee-list {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 1rem;
    }
    
    .committee .committee-group h3 {
        font-size: 1.5rem;
    }
    
    .committee-card {
        padding: 1.25rem;
    }
    
    .committee-card .name {
        font-size: 1.05rem;
    }
}

@media (max-width: 480px) {
    .committee .committee-list,
    .advisory-committee-list {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .committee .committee-group h3 {
        font-size: 1.35rem;
    }
    
    .committee-card {
        padding: 1rem;
    }
    
    .committee-card .name {
        font-size: 1rem;
    }
    
    .committee-card .affiliation {
        font-size: 0.9rem;
    }
}

/* Advisory Committee Member Card Styles */
.advisory-committee-member {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.advisory-committee-member:hover {
    transform: translateY(-5px);
}

.advisory-committee-member .member-icon {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    overflow: hidden;
}

.advisory-committee-member .member-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.advisory-committee-member .member-icon i {
    font-size: 4rem;
    color: white;
}

.advisory-committee-member .member-info {
    padding: 1.5rem;
}

.advisory-committee-member .member-info h4 {
    font-weight: 700;
    font-size: 1.1rem;
    color: #1e293b;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.advisory-committee-member .member-info p {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.5;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.advisory-committee-member .member-info p::before {
    content: '📍';
    font-size: 0.9rem;
    margin-top: 0.1rem;
    flex-shrink: 0;
}

/* Pagination Controls */
.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 3rem;
    padding: 1.5rem;
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 24px;
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
}

.pagination-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.pagination-btn:disabled {
    background: #e5e7eb;
    color: #9ca3af;
    cursor: not-allowed;
    box-shadow: none;
}

.pagination-info {
    font-size: 1rem;
    font-weight: 600;
    color: #374151;
}

.pagination-info span {
    color: #1e40af;
    font-size: 1.1rem;
}

/* Reviewers Section */
.reviewers {
    background: #f8fafc;
}

.reviewers-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
    padding: 0 1rem;
}

.reviewers-tab-btn {
    padding: 12px 24px;
    border: 2px solid #e5e7eb;
    background: white;
    color: #666;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
}

.reviewers-tab-btn.active,
.reviewers-tab-btn:hover {
    border-color: #1e40af;
    background: #1e40af;
    color: white;
}

.reviewers-content {
    position: relative;
}

.reviewers-content .reviewers-group {
    display: none;
}

.reviewers-content .reviewers-group.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

.reviewers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.reviewer-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.reviewer-card:hover {
    transform: translateY(-5px);
}

.reviewer-icon {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.reviewer-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.reviewer-icon i {
    font-size: 4rem;
    color: white;
}

.reviewer-info {
    padding: 1.5rem;
}

.reviewer-info .name {
    font-weight: 700;
    font-size: 1.1rem;
    color: #1e293b;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.reviewer-info .affiliation {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.5;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.reviewer-info .affiliation::before {
    content: '📍';
    font-size: 0.9rem;
    margin-top: 0.1rem;
    flex-shrink: 0;
}

.reviewer-info .email {
    color: #1e40af;
    font-size: 0.85rem;
    word-break: break-word;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.reviewer-info .email::before {
    content: '✉️';
    font-size: 0.9rem;
    margin-top: 0.1rem;
    flex-shrink: 0;
}

/* Responsive adjustments for reviewers cards */
@media (max-width: 1024px) {
    .reviewers-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 836px) {
    .reviewers-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .reviewer-card {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .reviewer-card .name {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .reviewers-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .reviewer-card {
        max-width: 100%;
    }
    
    .reviewer-card .name {
        font-size: 0.95rem;
    }
    
    .reviewer-card .affiliation {
        font-size: 0.85rem;
    }
}

/* Dates */
.dates {
    background: #f8fafc;
    padding-left: 10px;
}

.dates .dates-list { 
    display: grid; 
    gap: 1.25rem;
    max-width: 900px;
    margin: 0 auto;
}

.date-item { 
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: white;
    border-left: 4px solid #1e40af;
    /* border-radius: 8px; */
    padding: 1.5rem 1.75rem;
    
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.date-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.date-item.featured-date {
    background: #1e40af;
    border-left: 4px solid #1e3a8a;
}

.date-item.featured-date .date-label,
.date-item.featured-date .date-value {
    color: white;
}

.date-item.featured-date .date-icon {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.date-icon {
    width: 50px;
    height: 50px;
    background: #eff6ff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: #1e40af;
    flex-shrink: 0;
    /* margin-left: 10px; */
    
}

.date-content {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    flex: 1;
}

.date-label { 
    font-weight: 600;
    font-size: 1rem;
    color: #334155;
    line-height: 1.4;
}

.date-value { 
    color: #1e40af;
    font-weight: 700;
    font-size: 1.05rem;
}

/* Responsive Design for Dates */
@media (max-width: 768px) {
    .dates .dates-list {
        gap: 1rem;
    }
    
    .date-item {
        padding: 1.25rem 1.5rem;
        gap: 1.25rem;
    }
    
    .date-icon {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
    
    .date-label {
        font-size: 0.95rem;
    }
    
    .date-value {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .date-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 1.25rem;
        gap: 1rem;
    }
    
    .date-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .date-label {
        font-size: 0.9rem;
    }
    
    .date-value {
        font-size: 0.95rem;
    }
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #1e40af;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #1e40af;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1003;
    padding: 10px;
}

.bar {
    width: 25px;
    height: 3px;
    background: #1a237e;
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 3px;
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    padding : 20px 80px;
    height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    /* padding: 0 20px; */
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-details {
    margin-bottom: 2.5rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.detail-item i {
    width: 20px;
    color: #60a5fa;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: #f59e0b;
    color: white;
}

.btn-primary:hover {
    background: #d97706;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #1e40af;
    color: rgb(255, 255, 255);
    border: 2px solid rgb(255, 255, 255);
}

.btn-secondary:hover {
    background: white;
    color: #1e40af;
    border: 2px solid #1e40af;
}

.btn-outline {
    background: transparent;
    color: #1e40af;
    border: 2px solid #1e40af;
}

.btn-outline:hover {
    background: #1e40af;
    color: white;
}

.hero-image img {
    width: 80%;
    border-radius: 12px;
    /* box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2); */
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: #f8fafc;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.about-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.about-card:hover {
    transform: translateY(-5px);
}

.card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.card-icon i {
    font-size: 2rem;
    color: white;
}

.about-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e40af;
}

.about-card p {
    color: #666;
    line-height: 1.6;
}

/* Call for Papers Section */
.call-for-papers {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
}

.call-content {
    max-width: 900px;
    margin: 0 auto;
}

.call-main-text {
    background: white;
    padding: 3rem;
    /* border-radius: 16px; */
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-left: 5px solid #1e40af;
}

.call-main-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: #374151;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.call-main-text p strong {
    color: #1e40af;
    font-weight: 600;
}

.call-highlight {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    margin-top: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border-radius: 12px;
    border: 2px solid #3b82f6;
}

.call-highlight i {
    font-size: 2.5rem;
    color: #1e40af;
    flex-shrink: 0;
}

.call-highlight h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 0.5rem;
}

.call-highlight p {
    font-size: 1rem;
    margin-bottom: 0;
    text-align: left;
    color: #1f2937;
}

.flyer-container {
    margin-top: 3rem;
    text-align: center;
}

.flyer-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.share-link-container {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-top: 1rem;
}

#flyerLinkInput {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
    background-color: #f8f9fa;
}

@media (max-width: 768px) {
    .call-main-text {
        padding: 2rem 1.5rem;
    }
    
    .call-main-text p {
        font-size: 1rem;
    }
    
    .call-highlight {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* Scopes Section */
.scopes {
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
    padding: 5rem 0;
}

.scopes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.scope-card {
    background: white;
    /* border-radius: 16px; */
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-bottom: 4px solid #1e40af;
    cursor: pointer;
}

.scope-card:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(30, 64, 175, 0.15);
}

.scope-number {
    display: inline-block;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: white;
    padding: 0.5rem 1.5rem;
    /* border-radius: 20px; */
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}

.scope-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.25rem;
    line-height: 1.4;
}

.scope-card ul {
    list-style: none;
    padding: 0;
}

.scope-card ul li {
    padding: 0.75rem 0;
    padding-left: 1.75rem;
    color: #475569;
    line-height: 1.6;
    position: relative;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.95rem;
}

.scope-card ul li:last-child {
    border-bottom: none;
}

.scope-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
    font-size: 1rem;
}

.scope-note {
    background: white;
    padding: 2rem;
    /* border-radius: 12px; */
    border-left: 5px solid #f59e0b;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.scope-note p {
    color: #475569;
    font-size: 1.05rem;
    line-height: 1.8;
    margin: 0;
}

.scope-note strong {
    color: #1e293b;
    font-weight: 700;
}

.scope-card ul {
    display: none;
}

#scopeModalContentContainer {
    padding: 1rem;
}

#scopeModalContent h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

#scopeModalContent ul {
    list-style: none;
    padding: 0;
}

#scopeModalContent ul li {
    padding: 0.75rem 0;
    padding-left: 1.75rem;
    color: #475569;
    line-height: 1.6;
    position: relative;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.95rem;
}

#scopeModalContent ul li:last-child {
    border-bottom: none;
}

#scopeModalContent ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
    font-size: 1rem;
}

/* Speakers Section */
.speakers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.speaker-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.speaker-card:hover {
    transform: translateY(-5px);
}

.speaker-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    overflow: hidden;
}

.speaker-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.speaker-image i {
    font-size: 4rem;
    color: white;
}

.speaker-info {
    padding: 1.5rem;
}

.speaker-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 0.5rem;
}

.speaker-title {
    color: #666;
    margin-bottom: 1rem;
}

.speaker-bio {
    color: #666;
    line-height: 1.6;
}

/* Program Section */
.program {
    background: #f8fafc;
}

.program-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
    gap: 1rem;
}

.tab-btn {
    padding: 12px 24px;
    border: 2px solid #e5e7eb;
    background: white;
    color: #666;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.tab-btn.active,
.tab-btn:hover {
    border-color: #1e40af;
    background: #1e40af;
    color: white;
}

.program-content {
    max-width: 800px;
    margin: 0 auto;
}

.program-day {
    display: none;
}

.program-day.active {
    display: block;
}

.program-item {
    display: flex;
    gap: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: 8px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.program-item .time {
    min-width: 120px;
    font-weight: 600;
    color: #1e40af;
}

.program-item .event h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #333;
}

.program-item .event p {
    color: #666;
}

/* Submission Section */
.submission-guidelines {
    margin-bottom: 4rem;
}

.guideline-box {
    background: white;
    padding: 2.5rem;
    /* border-radius: 16px; */
    margin-bottom: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-left: 5px solid #1e40af;
}

.guideline-box h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.guideline-box h3 i {
    font-size: 1.5rem;
}

.guideline-intro {
    color: #475569;
    line-height: 1.8;
    margin-bottom: 2rem;
    font-size: 1.05rem;
    text-align: justify;
}

.guideline-section {
    margin-bottom: 2rem;
}

.guideline-section:last-child {
    margin-bottom: 0;
}

.guideline-section h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.guideline-section h4 i {
    color: #3b82f6;
}

.guideline-section p {
    color: #475569;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.submission-link-box {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 1rem;
    border: 2px solid #93c5fd;
}

.submission-link {
    color: #1e40af;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.submission-link:hover {
    color: #1e3a8a;
    gap: 0.75rem;
}

.submission-link i {
    font-size: 0.9rem;
}

.ethics-box {
    border-left-color: #dc2626;
    background: linear-gradient(135deg, #ffffff 0%, #fef2f2 100%);
}

.ethics-box h3 {
    color: #dc2626;
}

.ethics-list {
    list-style: none;
    padding: 0;
}

.ethics-list li {
    padding: 1rem;
    margin-bottom: 1rem;
    background: white;
    border-radius: 8px;
    color: #475569;
    line-height: 1.8;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.ethics-list li i {
    color: #10b981;
    font-size: 1.25rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.ethics-list li:last-child {
    margin-bottom: 0;
}

.camera-ready-box {
    border-left-color: #7c3aed;
    background: linear-gradient(135deg, #ffffff 0%, #faf5ff 100%);
}

.camera-ready-box h3 {
    color: #7c3aed;
}

.camera-ready-box > p {
    color: #475569;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.camera-ready-list {
    list-style: none;
    padding: 0;
}

.camera-ready-list li {
    padding: 1rem;
    margin-bottom: 1rem;
    background: white;
    border-radius: 8px;
    color: #475569;
    line-height: 1.8;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.camera-ready-list li i {
    color: #7c3aed;
    font-size: 1.25rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.camera-ready-list li:last-child {
    margin-bottom: 0;
}

.submission-info-box {
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
    padding: 2.5rem;
    /* border-radius: 16px; */
    margin-bottom: 3rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-left: 5px solid #0ea5e9;
}

.submission-info-box h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #0369a1;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.submission-info-box h3 i {
    font-size: 1.5rem;
}

.info-list {
    list-style: none;
    padding: 0;
}

.info-list li {
    padding: 1rem;
    margin-bottom: 1rem;
    background: white;
    border-radius: 8px;
    color: #475569;
    line-height: 1.8;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.info-list li i {
    color: #0ea5e9;
    font-size: 1.25rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.info-list li:last-child {
    margin-bottom: 0;
}

.submission-form-container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.submission-form-container h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 2rem;
    text-align: center;
    padding-bottom: 1rem;
    border-bottom: 3px solid #1e40af;
}

.submission-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.submission-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

.dates-list {
    background: white;
    padding: 2rem;
    /* border-radius: 12px; */
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.date-item {
    display: flex;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid #e5e7eb;
}

.date-item:last-child {
    border-bottom: none;
}

.date-label {
    font-weight: 500;
    color: #ffffff;
}

.date-label2 {
    font-weight: 500;
    color: #000000;
}


.date-value {
    font-weight: 600;
    color: #FFFFFF;
}

.date-value2 {
    font-weight: 600;
    color: #161DA8;
}

.submission-form {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.submission-form h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #1e40af;
}

/* Registration Section */
.registration {
    background: #f8fafc;
}

.registration-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
    padding: 0 1rem;
}

.registration-tab-btn {
    padding: 14px 40px;
    border: 2px solid #e5e7eb;
    background: white;
    color: #64748b;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 700;
    font-size: 1.05rem;
    white-space: nowrap;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.registration-tab-btn.active {
    border-color: #1e40af;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: white;
    box-shadow: 0 4px 16px rgba(30, 64, 175, 0.3);
    transform: translateY(-2px);
}

.registration-tab-btn:hover {
    border-color: #1e40af;
    background: #1e40af;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(30, 64, 175, 0.2);
}

.registration-content {
    position: relative;
}



.registration-info {
    margin-top: 4rem;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e5e7eb;
}

.registration-info h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 3px solid #1e40af;
    display: inline-block;
}

.registration-info ul {
    list-style: none;
    color: #475569;
    line-height: 1.8;
    padding-left: 0;
}

.registration-info ul li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
    font-size: 1rem;
}

.registration-info ul li::before {
    content: '•';
    position: absolute;
    left: 0.5rem;
    color: #1e40af;
    font-size: 1.5rem;
    line-height: 1;
}

.pricing-subtitle {
    font-size: 0.9rem;
    color: #666;
    margin-top: -0.5rem;
    margin-bottom: 1rem;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid #e5e7eb;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(30, 64, 175, 0.15);
    border-color: #1e40af;
}

.pricing-card.featured {
    border: 3px solid #1e40af;
    background: linear-gradient(135deg, #ffffff 0%, #eff6ff 100%);
    transform: scale(1.03);
    box-shadow: 0 8px 30px rgba(30, 64, 175, 0.2);
}

.pricing-card.featured:hover {
    transform: scale(1.03) translateY(-8px);
    box-shadow: 0 16px 50px rgba(30, 64, 175, 0.25);
}

.pricing-card.featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: white;
    padding: 6px 24px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
}

.pricing-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 0.5rem;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pricing-subtitle {
    font-size: 0.85rem;
    color: #64748b;
    margin-top: -0.5rem;
    margin-bottom: 1rem;
    font-style: italic;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    color: #1e40af;
    margin: 1.5rem 0;
    line-height: 1;
    letter-spacing: -1px;
}

.pricing-card.featured .price {
    color: #1e40af;
    font-size: 3.25rem;
}

.features {
    list-style: none;
    margin: 1.5rem 0;
    flex-grow: 1;
    text-align: left;
}

.features li {
    padding: 0.75rem 0;
    color: #475569;
    border-bottom: 1px solid #f1f5f9;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.features li:last-child {
    border-bottom: none;
}

.features li::before {
    content: '✓';
    color: #10b981;
    font-weight: bold;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.pricing-card .btn {
    margin-top: 1.5rem;
    width: 100%;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Venue Section */
.venue-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.venue-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

.venue-info p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.venue-details {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.detail {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.detail:last-child {
    margin-bottom: 0;
}

.detail i {
    width: 20px;
    color: #1e40af;
    margin-top: 5px;
}

.detail h4 {
    font-weight: 600;
    color: #333;
    margin-bottom: 0.5rem;
}

.detail p {
    color: #666;
    margin: 0;
}

.venue-map {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Contact Section */
.contact {
    background: #f8fafc;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    grid-template-areas: "info form"
                         "map map";
}

.contact-map{
    grid-area: map;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}
.contact-info {
    grid-area: info;
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-item i {
    width: 20px;
    color: #1e40af;
    margin-top: 5px;
}

.contact-item h4 {
    font-weight: 600;
    color: #333;
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: #666;
    margin: 0;
}

.contact-form {
    grid-area: form;
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

.contact-map iframe {
    width: 100%;
    height: 450px;
    border: none;
}

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #60a5fa;
}

.footer-section p {
    color: #cbd5e1;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #60a5fa;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: #374151;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    transition: background 0.3s ease;
}

.social-links a:hover {
    background: #1e40af;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 1rem;
    text-align: center;
    color: #9ca3af;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: white;
    margin: 1rem; /* Replaces margin: 2% auto */
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    color: #666;
    transition: color 0.3s ease;
}

.close:hover {
    color: #1e40af;
}

.modal-content h2 {
    color: #1e40af;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    text-align: center;
}

/* Modal form specific styles */
#registrationModal .form-group {
    margin-bottom: 1.2rem;
}

#registrationModal .form-group label {
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

#registrationModal .form-group input,
#registrationModal .form-group textarea {
    padding: 12px 16px;
    border: 2px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: #ffffff;
}

#registrationModal .form-group input:focus,
#registrationModal .form-group textarea:focus {
    border-color: #1e40af;
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
    outline: none;
}

#registrationModal .btn {
    width: 100%;
    padding: 14px;
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 1rem;
}

/* Responsive Design */
@media (max-width: 836px) {
    /* Make top nav sticky on mobile */
    .top-nav {
        position: sticky;
        top: 0;
        z-index: 1002;
    }
    
    /* Compact brand section for mobile */
    .brand-section {
        flex-direction: row;
        gap: 10px;
        padding: 10px 15px;
        justify-content: flex-start;
    }
    
    /* Mobile Dates Ticker */
    .mobile-dates-ticker {
        display: block;
        flex: 1;
        overflow: hidden;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 4px;
        margin-right: 10px;
        padding: 8px 0;
    }
    
    .ticker-wrapper {
        width: 100%;
        overflow: hidden;
        position: relative;
    }
    
    .ticker-content {
        display: flex;
        gap: 30px;
        animation: ticker-scroll 18s linear infinite;
        white-space: nowrap;
        will-change: transform;
    }
    
    .ticker-item {
        color: white;
        font-size: 12px;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 0 10px;
    }
    
    .ticker-item i {
        font-size: 11px;
        opacity: 0.9;
    }
    
    @keyframes ticker-scroll {
        from {
            transform: translateX(0);
        }
        to {
            transform: translateX(-500%);
        }
    }
    
    /* Pause animation on hover */
    /* .mobile-dates-ticker:hover .ticker-content {
        animation-play-state: paused;
    } */
    
    .brand-logos {
        gap: 8px;
    }
    
    .top-logo {
        height: 40px;
    }
    
    .brand-text h1 {
        font-size: 14px;
    }
    
    .brand-text p {
        font-size: 9px;
    }
    
    /* Hide dates banner on mobile, show in Important Dates section */
    .dates-banner-inline {
        display: none;
    }
    
    /* Make secondary nav sticky below top nav */
    .header {
        position: sticky;
        top: 60px;
        z-index: 1001;
        background: linear-gradient(135deg, #0d47a1 0%, #1565c0 50%, #1976d2 100%);
    }
    
    .nav-container {
        padding: 8px 15px;
        justify-content: space-between;
        gap: 0;
    }
    
    /* Show hamburger menu */
    .hamburger {
        display: flex;
    }
    
    .bar {
        background: white;
    }

    /* Mobile navigation menu */
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 120px;
        display: block;
        background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
        width: 100%;
        max-height: calc(100vh - 120px);
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
        text-align: left;
        transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        padding: 20px 0 80px 0;
        border-top: 3px solid #1976d2;
        scroll-behavior: smooth;
        overscroll-behavior: contain;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        width: 100%;
        display: block;
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    /* Mobile nav links */
    .nav-link {
        padding: 16px 25px;
        font-size: 15px;
        color: #1a237e;
        font-weight: 600;
        display: block;
        width: 100%;
        text-align: left;
        text-transform: none;
        letter-spacing: 0.3px;
        background: transparent;
        transition: all 0.3s ease;
        position: relative;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .nav-link::before {
        content: '';
        width: 4px;
        height: 0;
        background: #1976d2;
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        transition: height 0.3s ease;
    }
    
    .nav-link:hover,
    .nav-link.active {
        background: rgba(25, 118, 210, 0.08);
        color: #1976d2;
        padding-left: 30px;
    }
    
    .nav-link.active::before {
        height: 100%;
    }
    
    /* Smooth scrollbar for menu - Enhanced visibility */
    .nav-menu::-webkit-scrollbar {
        width: 8px;
    }
    
    .nav-menu::-webkit-scrollbar-track {
        background: rgba(0, 0, 0, 0.05);
        border-radius: 4px;
        margin: 10px 0;
    }
    
    .nav-menu::-webkit-scrollbar-thumb {
        background: #1976d2;
        border-radius: 4px;
        transition: background 0.3s ease;
    }
    
    .nav-menu::-webkit-scrollbar-thumb:hover {
        background: #0d47a1;
    }
    
    .nav-menu::-webkit-scrollbar-thumb:active {
        background: #0a3d91;
    }
    
    /* Firefox scrollbar styling */
    .nav-menu {
        scrollbar-width: thin;
        scrollbar-color: #1976d2 rgba(0, 0, 0, 0.05);
    }
    
    /* Adjust sections for mobile nav height */
    section {
        scroll-margin-top: 130px;
    }
    
    #home {
        scroll-margin-top: 0;
    }

    .hero {
        height: auto;
        height: 100vh;
        padding: 100px 0 60px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
        padding: 0 30px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-details {
        align-items: center;
        margin-bottom: 2rem;
    }

    .detail-item {
        justify-content: center;
        font-size: 0.95rem;
    }

    .detail-item:hover {
        transform: translateX(0) scale(1.05);
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-image {
        order: -1;
    }

    .hero-image img {
        max-width: 300px;
    }

    .scopes-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .scope-card {
        padding: 1.5rem;
    }

    .scope-card h3 {
        font-size: 1.2rem;
    }

    .submission-content,
    .venue-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        grid-template-areas: "info"
                             "form"
                             "map";
    }

    .guideline-box {
        padding: 1.5rem;
    }

    .submission-form-container {
        padding: 2rem 1.5rem;
    }

    .submission-form-container h3 {
        font-size: 1.4rem;
    }

    .submission-info-box {
        padding: 1.5rem;
    }

    .submission-info-box h3 {
        font-size: 1.4rem;
        flex-wrap: wrap;
    }

    .guideline-box h3 {
        font-size: 1.4rem;
        flex-wrap: wrap;
    }

    .guideline-section h4 {
        font-size: 1.1rem;
    }

    .submission-link {
        font-size: 0.9rem;
        word-break: break-all;
    }

    .program-tabs {
        flex-direction: column;
        align-items: center;
    }

    .committee-tabs {
        flex-direction: column;
        align-items: stretch;
        padding: 0;
    }

    .committee-tab-btn {
        width: 100%;
        text-align: center;
    }

    .registration-tabs {
        flex-direction: column;
        align-items: stretch;
        padding: 0;
    }

    .registration-tab-btn {
        width: 100%;
        text-align: center;
    }

    .program-item {
        flex-direction: column;
        gap: 1rem;
    }

    .program-item .time {
        min-width: auto;
        text-align: center;
    }

    .pricing-cards {
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 1.5rem;
    }
    
    .pricing-card.featured {
        transform: none;
        grid-column: span 1;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-8px);
    }

    .modal-content {
        margin: 1rem;
        width: 95%;
        max-width: 95%;
        padding: 1.5rem;
        max-height: 85vh;
    }

    /* Mobile Dropdown Styles */
    .nav-item .submenu {
        position: relative;
        display: none;
        width: 100%;
        box-shadow: none;
        border: none;
        border-top: 1px solid rgba(0, 0, 0, 0.08);
        background-color: rgba(0, 0, 0, 0.03);
        padding: 0;
        margin-top: 0;
    }

    .nav-item:hover .submenu {
        display: none; /* Disable hover on mobile */
    }

    .submenu li {
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .submenu li:last-child {
        border-bottom: none;
    }

    .submenu a {
        padding-left: 40px !important; /* Indent submenu items */
        color: #1a237e;
        background: transparent;
    }

    .submenu a:hover {
        background: rgba(25, 118, 210, 0.08);
        color: #1976d2;
    }
    
    .nav-link .fa-chevron-down {
        transition: transform 0.3s ease;
    }

    .nav-item.open > .nav-link .fa-chevron-down {
        transform: rotate(180deg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .modal-content {
        margin: 3% auto;
        width: 98%;
        max-width: 98%;
        padding: 1rem;
        max-height: 90vh;
    }
    
    #registrationModal .form-group {
        margin-bottom: 1rem;
    }
    
    #registrationModal .form-group input,
#registrationModal .form-group textarea {
    padding: 10px 12px;
    font-size: 0.95rem;
}

    .hero {
        height: auto;
        min-height: 60vh;
        /* padding: 80px 0 40px; */
    }

    .hero-container {
        gap: 2rem;
        /* padding: 0 20px; */
    }

    .hero-title {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-details {
        margin-bottom: 1.5rem;
        gap: 0.5rem;
    }

    .detail-item {
        font-size: 0.9rem;
        gap: 8px;
    }

    .detail-item i {
        width: 20px;
        font-size: 1rem;
    }

    .hero-buttons {
        gap: 0.75rem;
    }

    .hero-image img {
        max-width: 250px;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .committee-tab-btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }

    .registration-tab-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .about-card,
    .submission-form,
    .contact-form {
        padding: 1.5rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #1e40af;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Success/Error messages */
.message {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.message.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}


/* Registration Fees Table Styles */
.table-container {
    width: 700px;
    background: #d9d2f0;
    padding: 10px;
    border-radius: 6px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    margin: 20px auto; /* Added margin for centering and spacing */
}

.registration-content .table-container {
    max-width: 700px; /* Constrain width within existing container */
    margin: 40px auto; /* Center the table within the content area */
}

.registration-content table { /* Targeting the table within registration-content */
    width: 100%;
    border-collapse: collapse;
    background: #c9c3ee;
}

.registration-content th, 
.registration-content td { /* Targeting th, td within registration-content */
    border: 1px solid #ffffff;
    padding: 10px 12px;
    text-align: center;
    font-size: 16px;
}

.registration-content th { /* Targeting th within registration-content */
    background: #b7aedc;
    font-weight: bold;
    font-size: 17px;
}

.registration-content td:first-child { /* Targeting first td within registration-content */
    text-align: left;
    padding-left: 15px;
    font-weight: 500;
}

.registration-content tr:nth-child(even) td { /* Targeting even rows within registration-content */
    background: #d6d0f5;
}

.registration-content tr:nth-child(odd) td { /* Targeting odd rows within registration-content */
    background: #c7c0ef;
}

.registration-content caption { /* Targeting caption within registration-content */
    caption-side: bottom;
    padding-top: 8px;
    font-size: 14px;
    color: #444;
}

/* Mobile Responsive for Registration Fees Table */
@media (max-width: 600px) {
    .registration-content .table-container {
        width: 100%;
    }

    .registration-content th, 
    .registration-content td { /* Targeting th, td within registration-content */
        font-size: 14px;
        padding: 8px;
    }
}