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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #0F172A;
    background-color: #ffffff;
}

/* CSS Variables */
:root {
    --primary-color: #0F172A;
    --secondary-color: #0EA5E9;
    --accent-color: #10B981;
    --highlight-color: #F59E0B;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #EF4444;
    --neutral-50: #F8FAFC;
    --neutral-100: #F1F5F9;
    --neutral-200: #E2E8F0;
    --neutral-300: #CBD5E1;
    --neutral-400: #94A3B8;
    --neutral-500: #64748B;
    --neutral-600: #475569;
    --neutral-700: #334155;
    --neutral-800: #1E293B;
    --neutral-900: #0F172A;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --box-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--neutral-600);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    gap: var(--spacing-xs);
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
}

.btn-outline:hover {
    background: var(--secondary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.125rem;
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-full {
    width: 100%;
}

/* Navigation */
.nav-sticky {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--neutral-200);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--primary-color);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin-right: var(--spacing-sm);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    text-decoration: none;
    color: var(--neutral-600);
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--secondary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--secondary-color);
    border-radius: 1px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--neutral-600);
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 25%, #0EA5E9 75%, #10B981 100%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    color: white;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-title .highlight {
    background: linear-gradient(45deg, var(--highlight-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid rgba(255, 255, 255, 0.7);
    border-bottom: 2px solid rgba(255, 255, 255, 0.7);
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Section Styles */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--neutral-500);
    max-width: 600px;
    margin: 0 auto;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--neutral-800));
    color: white;
    padding: calc(var(--spacing-3xl) + 60px) 0 var(--spacing-3xl) 0;
    text-align: center;
}

.page-header-content h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.page-header-content p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
}

/* Highlights Section */
.highlights {
    background: var(--neutral-50);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.highlight-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    transition: all 0.3s ease;
    text-align: center;
}

.highlight-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--box-shadow-lg);
}

.card-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.card-icon svg {
    width: 30px;
    height: 30px;
    stroke-width: 2;
}

.highlight-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.card-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.card-link:hover {
    color: var(--accent-color);
}

/* Stats Section */
.stats-section {
    background: linear-gradient(135deg, var(--primary-color), var(--neutral-800));
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-lg);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--highlight-color);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: white;
    text-align: center;
}

.cta-content h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
}

.cta-section .btn-primary {
    background: white;
    color: var(--secondary-color);
}

.cta-section .btn-primary:hover {
    background: var(--neutral-100);
}

/* About Page Styles */
.about-content {
    background: var(--neutral-50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text .section-header {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

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

.mission-list li {
    padding: var(--spacing-sm) 0;
    position: relative;
    padding-left: var(--spacing-lg);
}

.mission-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: var(--spacing-sm);
    color: var(--accent-color);
    font-weight: bold;
}

.about-image {
    position: relative;
}

.about-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-lg);
}

/* History Timeline */
.history-section {
    background: white;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--secondary-color);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-year {
    background: var(--secondary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 600;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.timeline-content {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    width: calc(50% - var(--spacing-xl));
    margin-top: var(--spacing-lg);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: var(--spacing-xl);
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: var(--spacing-xl);
}

/* Team Section */
.team-section {
    background: var(--neutral-50);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.team-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: all 0.3s ease;
}

.team-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--box-shadow-lg);
}

.team-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto var(--spacing-md);
    border: 4px solid var(--secondary-color);
}

.team-role {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.team-bio {
    font-size: 0.875rem;
    color: var(--neutral-500);
}

/* Programs Page */
.programs-section {
    background: var(--neutral-50);
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.program-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: all 0.3s ease;
}

.program-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--box-shadow-lg);
}

.program-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.program-content {
    padding: var(--spacing-lg);
}

.program-category {
    display: inline-block;
    background: var(--secondary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--spacing-xs);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.program-meta {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
    font-size: 0.875rem;
}

.program-duration {
    color: var(--neutral-500);
}

.program-status {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--spacing-xs);
    font-weight: 500;
    font-size: 0.75rem;
}

.program-status.active {
    background: var(--success-color);
    color: white;
}

.program-status.planning {
    background: var(--warning-color);
    color: white;
}

/* Publications Page */
.filter-section, .events-filter {
    background: white;
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--neutral-200);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 2px solid var(--neutral-300);
    color: var(--neutral-600);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
}

.publications-section {
    background: var(--neutral-50);
}

.publications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.publication-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: all 0.3s ease;
}

.publication-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--box-shadow-lg);
}

.publication-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.publication-content {
    padding: var(--spacing-lg);
}

.publication-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.publication-category {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--spacing-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.publication-category.research {
    background: var(--secondary-color);
    color: white;
}

.publication-category.policy {
    background: var(--accent-color);
    color: white;
}

.publication-category.opinion {
    background: var(--highlight-color);
    color: white;
}

.publication-category.report {
    background: var(--neutral-600);
    color: white;
}

.publication-date {
    color: var(--neutral-500);
}

.publication-content h3 a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.2s ease;
}

.publication-content h3 a:hover {
    color: var(--secondary-color);
}

.publication-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--neutral-500);
}

.author-img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

/* Newsletter Section */
.newsletter-section {
    background: var(--primary-color);
    color: white;
    text-align: center;
}

.newsletter-content h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.newsletter-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xl);
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    gap: var(--spacing-md);
}

.newsletter-form input {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.newsletter-form input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.3);
}

/* Article Page */
.article-header {
    background: linear-gradient(135deg, var(--primary-color), var(--neutral-800));
    color: white;
    padding: calc(var(--spacing-3xl) + 60px) 0 var(--spacing-2xl) 0;
}

.article-breadcrumb {
    margin-bottom: var(--spacing-lg);
}

.article-breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

.article-breadcrumb a:hover {
    color: white;
}

.article-breadcrumb span {
    color: rgba(255, 255, 255, 0.5);
    margin: 0 var(--spacing-sm);
}

.article-category {
    display: inline-block;
    background: var(--secondary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--spacing-xs);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.article-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.article-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.article-author .author-img {
    width: 40px;
    height: 40px;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 500;
    color: white;
}

.author-title {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.article-date,
.article-read-time {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.article-content {
    background: var(--neutral-50);
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-3xl);
    max-width: 1200px;
    margin: 0 auto;
}

.article-main {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

.article-featured-img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xl);
}

.article-body h2 {
    color: var(--primary-color);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.article-body h3 {
    color: var(--neutral-700);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.article-body p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.article-body blockquote {
    background: var(--neutral-50);
    border-left: 4px solid var(--secondary-color);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    border-radius: var(--border-radius);
}

.article-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--neutral-200);
}

.tag {
    background: var(--neutral-100);
    color: var(--neutral-600);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Article Sidebar */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.sidebar-widget {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

.sidebar-widget h3 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.share-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.share-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.share-btn svg {
    width: 16px;
    height: 16px;
}

.share-btn.twitter {
    background: #1DA1F2;
    color: white;
}

.share-btn.facebook {
    background: #4267B2;
    color: white;
}

.share-btn.linkedin {
    background: #0077B5;
    color: white;
}

.share-btn:hover {
    transform: translateX(4px);
}

.related-articles {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.related-article {
    display: flex;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--neutral-700);
    transition: all 0.2s ease;
}

.related-article:hover {
    color: var(--secondary-color);
}

.related-article img {
    width: 60px;
    height: 40px;
    object-fit: cover;
    border-radius: var(--spacing-xs);
}

.related-content h4 {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.related-date {
    font-size: 0.75rem;
    color: var(--neutral-400);
}

/* Events Page */
.events-section {
    background: var(--neutral-50);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.event-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow);
    transition: all 0.3s ease;
    display: flex;
    gap: var(--spacing-lg);
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow-lg);
}

.event-date {
    text-align: center;
    background: var(--secondary-color);
    color: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    min-width: 80px;
}

.event-day {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.event-month {
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.9;
}

.event-content {
    flex: 1;
}

.event-type {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--spacing-xs);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
    display: inline-block;
}

.event-type.conference {
    background: var(--secondary-color);
    color: white;
}

.event-type.webinar {
    background: var(--accent-color);
    color: white;
}

.event-type.workshop {
    background: var(--highlight-color);
    color: white;
}

.event-type.seminar {
    background: var(--neutral-600);
    color: white;
}

.event-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.event-location,
.event-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--neutral-500);
}

.event-location svg,
.event-time svg {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

/* Past Events */
.past-events-section {
    background: white;
}

.past-events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.past-event-card {
    background: var(--neutral-50);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.past-event-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow);
}

.past-event-img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.past-event-content {
    padding: var(--spacing-lg);
}

.past-event-date {
    color: var(--secondary-color);
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

/* Contact Page */
.contact-section {
    background: var(--neutral-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-info h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.contact-details {
    margin: var(--spacing-xl) 0;
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

.contact-text h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-size: 1.125rem;
}

.social-contact {
    margin-top: var(--spacing-xl);
}

.social-contact h3 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

/* Contact Form */
.contact-form-wrapper {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

.contact-form h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--neutral-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--neutral-200);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    gap: var(--spacing-sm);
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkmark {
    font-size: 0.875rem;
    color: var(--neutral-600);
}

.btn-loading {
    display: none;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Map Section */
.map-section {
    background: white;
}

.map-container {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.map-placeholder {
    position: relative;
}

.map-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.map-overlay {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    max-width: 250px;
}

.map-info h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.map-info p {
    color: var(--neutral-600);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-lg) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.footer-logo img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin-right: var(--spacing-sm);
}

.footer-logo span {
    font-size: 1.25rem;
    font-weight: 600;
}

.footer-info p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-lg);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: var(--spacing-sm);
    transition: color 0.2s ease;
}

.footer-column a:hover {
    color: var(--secondary-color);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.2s ease;
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.social-links svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in[data-delay="100"] {
    transition-delay: 0.1s;
}

.fade-in[data-delay="200"] {
    transition-delay: 0.2s;
}

.fade-in[data-delay="300"] {
    transition-delay: 0.3s;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .article-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        align-items: center;
        justify-content: start;
        padding-top: var(--spacing-2xl);
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .highlights-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: column;
        padding-left: 60px;
    }
    
    .timeline-year {
        left: 30px;
        transform: translateX(-50%);
    }
    
    .timeline-content {
        width: 100%;
        margin: var(--spacing-lg) 0 0 0;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .programs-grid,
    .publications-grid {
        grid-template-columns: 1fr;
    }
    
    .events-grid {
        grid-template-columns: 1fr;
    }
    
    .event-card {
        flex-direction: column;
        text-align: center;
    }
    
    .event-date {
        align-self: center;
        margin-bottom: var(--spacing-md);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .map-overlay {
        position: static;
        margin-top: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .page-header-content h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .article-main {
        padding: var(--spacing-lg);
    }
    
    .contact-form-wrapper {
        padding: var(--spacing-lg);
    }
}

/* Loading States */
.btn.loading {
    pointer-events: none;
}

.btn.loading .btn-text {
    display: none;
}

.btn.loading .btn-loading {
    display: flex !important;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Form Validation */
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: var(--error-color);
}

.form-group.success input,
.form-group.success select,
.form-group.success textarea {
    border-color: var(--success-color);
}

.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-indicator {
        animation: none;
    }
}

/* Focus styles for keyboard navigation */
.btn:focus,
.nav-link:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .nav-sticky,
    .scroll-indicator,
    .cta-section,
    .footer {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }
    
    .hero-background {
        display: none;
    }
    
    .hero-content {
        color: var(--primary-color);
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --neutral-200: #000000;
        --neutral-300: #000000;
        --box-shadow: 0 0 0 1px #000000;
    }
}