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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

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

/* Main Header */
.main-header {
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 20px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    font-size: 2.5rem;
    font-weight: bold;
    color: #2c3e50;
    margin: 0;
}

.logo-subtitle {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.subtitle {
    font-size: 0.9rem;
    color: #666;
    margin: 0;
    font-weight: normal;
}

.chapter {
    font-size: 0.8rem;
    color: #888;
    margin: 0;
    font-weight: normal;
}

.since {
    font-size: 0.7rem;
    color: #aaa;
    margin: 0;
    font-weight: bold;
    letter-spacing: 1px;
}

/* Navigation */
.main-nav {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 8px 0;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #007bff;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    padding: 8px 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    list-style: none;
    z-index: 1001;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: 8px 16px;
    color: #333;
    text-decoration: none;
    font-size: 0.85rem;
    transition: background-color 0.3s ease;
}

.dropdown-link:hover {
    background-color: #f8f9fa;
    color: #007bff;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 5px;
    margin-left: 20px;
}

.lang-btn {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    color: #495057;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    background: #e9ecef;
    border-color: #adb5bd;
}

.lang-btn.active {
    background: #007bff;
    color: white;
    border-color: #007bff;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: #333;
    transition: 0.3s;
}

/* Main Content */
.main-content {
    margin-top: 120px;
    min-height: calc(100vh - 200px);
}

.about-section {
    padding: 40px 0;
    text-align: center;
    background: #f8f9fa;
}

.section-title {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 30px;
    font-weight: normal;
}

.donate-section {
    margin-bottom: 30px;
}

.donate-button {
    display: inline-block;
    background: #dc3545;
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.donate-button:hover {
    background: #c82333;
    color: white;
}

/* About list typography */
.about-list {
    max-width: 900px;
    margin: 0 auto 30px;
    text-align: left;
    list-style: none;
    padding: 0;
}

.about-list li {
    position: relative;
    padding-left: 28px;
    margin: 10px 0;
    line-height: 1.8;
    color: #444;
}

.about-list li:before {
    content: "•";
    position: absolute;
    left: 0;
    top: 0;
    color: #007bff;
    font-weight: bold;
    line-height: 1.8;
}

.about-image {
    width: 100%;
    max-width: 600px;
    height: 300px;
    background: #f8f9fa;
    border: 2px dashed #dee2e6;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.placeholder-content {
    text-align: center;
}

.placeholder-text {
    color: #6c757d;
    font-size: 1.2rem;
    font-weight: 500;
}

/* Main Footer */
.main-footer {
    background: #fff;
    padding: 40px 0;
    border-top: 1px solid #dee2e6;
    margin-top: 40px;
}

/* Donate Button */
.donate-section-footer {
    text-align: center;
    margin-bottom: 20px;
}

.donate-btn-footer {
    background: #ffc107;
    color: #000;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.donate-btn-footer:hover {
    background: #e0a800;
    transform: translateY(-2px);
}

/* Payment Methods */
.payment-methods {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.payment-icon {
    background: #f8f9fa;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #495057;
    border: 1px solid #dee2e6;
}

/* Main Footer Content */
.footer-main-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-left {
    display: flex;
    align-items: center;
}

.association-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.association-logo-img {
    height: 80px;
    width: auto;
    display: block;
}

.logo-circle {
    width: 60px;
    height: 60px;
    background: #007bff;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    position: relative;
}

.globe-icon {
    font-size: 20px;
    margin-bottom: 2px;
}

.usa-text {
    font-size: 10px;
    font-weight: bold;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.chinese-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: #007bff;
    margin-bottom: 5px;
}

.english-text {
    font-size: 0.9rem;
    color: #007bff;
    font-weight: 500;
}

.footer-divider {
    width: 1px;
    height: 80px;
    background: #dee2e6;
    margin: 0 20px;
}

.footer-right {
    flex: 1;
    text-align: right;
}

.copyright {
    color: #6c757d;
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

/* Social Section */
.social-section {
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.follow-text {
    color: #333;
    font-weight: bold;
    font-size: 1rem;
    margin: 0;
}

.instagram-text {
    font-family: 'Brush Script MT', cursive;
    font-size: 1.2rem;
    font-weight: bold;
    color: #333;
}

.icon-placeholder {
    color: white;
    font-size: 16px;
}

/* Page-specific styles */
.page-section {
    padding: 40px 0;
}

.section-title {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 30px;
    text-align: center;
    font-weight: normal;
}

/* Team page styles */
.team-intro {
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.team-member {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.member-photo {
    margin-bottom: 20px;
}

.member-photo-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center;
    display: block;
    margin: 0 auto;
}

.photo-placeholder {
    width: 120px;
    height: 120px;
    background: #dee2e6;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.placeholder-text {
    color: #6c757d;
    font-weight: 500;
}

.member-name {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 5px;
}

.member-title {
    color: #007bff;
    font-weight: 600;
    margin-bottom: 15px;
}

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

/* Conference page styles */
.conference-intro {
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.conference-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.detail-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.detail-card h3 {
    color: #2c3e50;
    margin-bottom: 20px;
}

.detail-item {
    margin-bottom: 10px;
    padding: 5px 0;
}

.speaker-list, .track-list {
    list-style: none;
}

.speaker-item, .track-item {
    padding: 8px 0;
    border-bottom: 1px solid #dee2e6;
}

.track-item {
    background: #e9ecef;
    margin: 5px 0;
    padding: 10px;
    border-radius: 5px;
    border: none;
}

.conference-actions {
    text-align: center;
    margin: 40px 0;
}

.action-button {
    display: inline-block;
    padding: 12px 24px;
    margin: 0 10px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.action-button.primary {
    background: #007bff;
    color: white;
}

.action-button.primary:hover {
    background: #0056b3;
}

.action-button.secondary {
    background: #6c757d;
    color: white;
}

.action-button.secondary:hover {
    background: #545b62;
}

.action-button.success {
    background: #28a745;
    color: white;
}

.action-button.success:hover {
    background: #1e7e34;
}

/* Schedule styles */
.conference-schedule {
    margin-top: 40px;
}

.schedule-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.schedule-day {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.schedule-day h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    text-align: center;
}

.schedule-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #dee2e6;
}

.time {
    font-weight: 600;
    color: #007bff;
    min-width: 80px;
}

.event {
    color: #666;
}

/* Handbook page styles */
.handbook-intro {
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.handbook-content {
    max-width: 1000px;
    margin: 0 auto;
}

.handbook-section {
    margin-bottom: 40px;
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.handbook-section h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    border-bottom: 2px solid #007bff;
    padding-bottom: 10px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.info-item {
    padding: 10px;
    background: white;
    border-radius: 5px;
    border-left: 4px solid #007bff;
}

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

.info-list li {
    padding: 8px 0;
    border-bottom: 1px solid #dee2e6;
    position: relative;
    padding-left: 20px;
}

.info-list li:before {
    content: "•";
    color: #007bff;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.venue-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.venue-item {
    background: white;
    padding: 20px;
    border-radius: 5px;
    text-align: center;
}

.venue-item h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.guidelines h4 {
    color: #2c3e50;
    margin-top: 20px;
    margin-bottom: 10px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.contact-item {
    background: white;
    padding: 20px;
    border-radius: 5px;
    border-left: 4px solid #28a745;
}

.emergency-info {
    background: #fff3cd;
    padding: 20px;
    border-radius: 5px;
    border-left: 4px solid #ffc107;
}

.handbook-actions {
    text-align: center;
    margin-top: 40px;
}

/* Sponsor page styles */
.sponsor-intro {
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.sponsorship-benefits {
    margin-bottom: 40px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.benefit-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.benefit-item h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.package-card {
    background: white;
    border: 2px solid #dee2e6;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.package-card:hover {
    border-color: #007bff;
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 123, 255, 0.2);
}

.package-card h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.package-price {
    font-size: 2rem;
    font-weight: bold;
    color: #007bff;
    margin-bottom: 20px;
}

.package-features {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
}

.package-features li {
    padding: 8px 0;
    border-bottom: 1px solid #dee2e6;
}

.package-button {
    display: inline-block;
    background: #007bff;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.package-button:hover {
    background: #0056b3;
}

.custom-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.custom-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

.custom-item h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.sponsor-contact {
    margin-top: 40px;
}

.contact-details {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.contact-details h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.contact-form {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.sponsor-form {
    display: grid;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 5px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px;
    border: 1px solid #dee2e6;
    border-radius: 5px;
    font-size: 1rem;
}

.submit-button {
    background: #28a745;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s ease;
}

.submit-button:hover {
    background: #1e7e34;
}

/* Activities page styles */
.activities-intro {
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.category-section {
    margin-bottom: 50px;
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.event-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.event-card h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.event-details {
    margin-bottom: 15px;
}

.event-details p {
    margin: 5px 0;
    color: #666;
}

.event-description {
    margin-bottom: 15px;
    line-height: 1.6;
}

.event-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.highlight {
    background: #e9ecef;
    color: #495057;
    padding: 4px 8px;
    border-radius: 15px;
    font-size: 0.8rem;
}

.upcoming-events {
    margin-top: 50px;
}

.events-timeline {
    margin-top: 30px;
}

.timeline-item {
    display: flex;
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.timeline-date {
    min-width: 120px;
    font-weight: bold;
    color: #007bff;
    margin-right: 20px;
}

.timeline-content h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.event-registration {
    text-align: center;
    margin-top: 50px;
    padding: 40px;
    background: #f8f9fa;
    border-radius: 10px;
}

.registration-actions {
    margin-top: 20px;
}

/* Past Conferences page styles */
.conferences-intro {
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.conferences-timeline {
    margin-top: 40px;
}

.conference-year {
    margin-bottom: 50px;
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.conference-year h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

.conference-details {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px;
    margin-top: 20px;
}

.conference-info h4 {
    color: #007bff;
    margin-bottom: 15px;
}

.conference-highlights h5 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.conference-highlights ul {
    list-style: none;
    padding: 0;
}

.conference-highlights li {
    padding: 5px 0;
    border-bottom: 1px solid #dee2e6;
    position: relative;
    padding-left: 20px;
}

.conference-highlights li:before {
    content: "•";
    color: #007bff;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.conference-stats {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: #007bff;
}

.stat-label {
    color: #666;
    font-size: 0.9rem;
}

.conference-archive {
    margin-top: 50px;
}

.archive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.archive-item {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.archive-item:hover {
    transform: translateY(-5px);
}

.archive-item h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.conference-materials {
    text-align: center;
    margin-top: 50px;
    padding: 40px;
    background: #f8f9fa;
    border-radius: 10px;
}

.materials-actions {
    margin-top: 20px;
}

/* More page styles */
.more-intro {
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.more-sections {
    max-width: 1000px;
    margin: 0 auto;
}

.info-section {
    margin-bottom: 50px;
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.info-section h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

.membership-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

.membership-benefits ul {
    list-style: none;
    padding: 0;
}

.membership-benefits li {
    padding: 8px 0;
    border-bottom: 1px solid #dee2e6;
    position: relative;
    padding-left: 20px;
}

.membership-benefits li:before {
    content: "✓";
    color: #28a745;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.membership-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.membership-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.membership-card h5 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.price {
    font-size: 1.5rem;
    font-weight: bold;
    color: #007bff;
    margin-bottom: 10px;
}

.membership-actions {
    text-align: center;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.resource-item {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.resource-item h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.resource-link {
    display: inline-block;
    background: #007bff;
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 10px;
    transition: background 0.3s ease;
}

.resource-link:hover {
    background: #0056b3;
}

.partnerships-info p {
    text-align: center;
    margin-bottom: 30px;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.partner-item {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.partner-item h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.partner-item ul {
    list-style: none;
    padding: 0;
}

.partner-item li {
    padding: 5px 0;
    color: #666;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.contact-details {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.contact-details h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.social-media {
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #333;
    transition: transform 0.3s ease;
}

.social-link:hover {
    transform: scale(1.1);
}

.social-link .social-icon {
    width: 50px;
    height: 50px;
    background: #007bff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    font-size: 24px;
}

.newsletter-signup {
    text-align: center;
}

.newsletter-form {
    max-width: 400px;
    margin: 20px auto 0;
}

.newsletter-form .form-group {
    display: flex;
    gap: 10px;
}

.newsletter-form input {
    flex: 1;
    padding: 10px;
    border: 1px solid #dee2e6;
    border-radius: 5px;
    font-size: 1rem;
}

.subscribe-button {
    background: #28a745;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s ease;
}

.subscribe-button:hover {
    background: #1e7e34;
}

/* Active navigation link */
.nav-link.active {
    color: #007bff;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .logo-section {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .main-nav {
        width: 100%;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 15px;
        width: 100%;
    }
    
    .mobile-menu-toggle {
        display: flex;
        position: absolute;
        top: 20px;
        right: 20px;
    }
    
    .main-nav {
        display: none;
    }
    
    .main-nav.active {
        display: block;
        width: 100%;
    }
    
    .language-switcher {
        margin-left: 0;
        margin-top: 15px;
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .association-logo-img { height: 64px; }
    .footer-divider { height: 64px; }
    .copyright { font-size: 1rem; }
    
    .conference-details {
        grid-template-columns: 1fr;
    }
    
    .membership-info {
        grid-template-columns: 1fr;
    }
    
    .timeline-item {
        flex-direction: column;
    }
    
    .timeline-date {
        margin-bottom: 10px;
        margin-right: 0;
    }
    
    .conference-stats {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .logo {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .association-logo-img { height: 56px; }
    .footer-divider { height: 56px; }
    
    .image-placeholder {
        height: 200px;
    }
    
    .packages-grid {
        grid-template-columns: 1fr;
    }
    
    .events-grid {
        grid-template-columns: 1fr;
    }
    
    .social-links {
        flex-direction: column;
        align-items: center;
    }
    
    .newsletter-form .form-group {
        flex-direction: column;
    }
}