* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #10b981;
    --accent-orange: #f59e0b;
    --accent-purple: #8b5cf6;
    --text-dark: #1e293b;
    --text-medium: #475569;
    --text-light: #64748b;
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-gradient-1: #667eea;
    --bg-gradient-2: #764ba2;
    --bg-gradient-3: #f093fb;
    --bg-gradient-4: #f5576c;
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--bg-white);
}

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

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.95);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--bg-gradient-1), var(--bg-gradient-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
    letter-spacing: 0.3px;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-purple));
    transition: width 0.3s ease;
}

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

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    color: white;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px 60px;
    margin-top: 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { opacity: 0.3; }
    100% { opacity: 0.6; }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.8s ease-out;
}

.hero-content .subtitle {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    font-weight: 300;
    letter-spacing: 0.5px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-content .dates {
    font-size: 1.05rem;
    opacity: 0.95;
    margin-bottom: 2rem;
    font-weight: 400;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-quote {
    margin-top: 2.5rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-quote p {
    font-size: 1.2rem;
    font-style: italic;
    line-height: 1.6;
    font-weight: 300;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Sections */
.section {
    padding: 80px 20px;
}

.section.alt-bg {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: 2.5rem;
    text-align: center;
    color: var(--text-dark);
    position: relative;
    padding-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 5px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-purple), var(--accent-orange));
    border-radius: 3px;
}

/* About Section */
.intro-text {
    font-size: 1.15rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 2.5rem;
    color: var(--text-medium);
    line-height: 1.7;
    font-weight: 300;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 0;
}

.value-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-purple));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.value-card:hover::before {
    transform: scaleX(1);
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.value-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.value-card h3 {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.value-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Projects Section */
.project-featured {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-2xl);
    margin-bottom: 0;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.project-screenshot {
    margin: 1.5rem 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-screenshot:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.project-screenshot img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}

.screenshot-caption {
    text-align: center;
    padding: 0.75rem;
    background: linear-gradient(135deg, var(--bg-light), var(--bg-white));
    color: var(--text-medium);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.3px;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.project-header h3 {
    font-size: 1.85rem;
    background: linear-gradient(135deg, var(--text-dark), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.7rem 1.4rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-md);
    letter-spacing: 0.2px;
}

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

.btn-secondary {
    background: linear-gradient(135deg, var(--text-medium), var(--text-dark));
}

.btn-paper {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-purple));
}

.project-description {
    font-size: 1.05rem;
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: 1.75rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin: 1.75rem 0;
}

.feature {
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border-radius: 12px;
    border-left: 3px solid transparent;
    background-clip: padding-box;
    position: relative;
    transition: all 0.3s ease;
    text-align: center;
}

.feature::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-purple));
    border-radius: 3px 0 0 3px;
}

.feature:hover {
    transform: translateY(-3px);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    display: block;
}

.feature h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 700;
}

.feature p {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.5;
}

.tech-stack {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--bg-light);
}

.tech-stack h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 700;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tag {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.825rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    letter-spacing: 0.2px;
}

.tag:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Video Section */
.project-videos {
    margin-top: 3rem;
}

.project-videos h3 {
    font-size: 1.85rem;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-dark), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.video-card {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-md);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 700;
}

.video-card p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.9rem;
}

/* Research Section */
.publication {
    background: linear-gradient(135deg, rgba(255, 255, 255, 1), rgba(248, 250, 252, 1));
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-2xl);
    position: relative;
    margin-bottom: 2.5rem;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.publication-badge {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: linear-gradient(135deg, var(--secondary-color), #059669);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.8rem;
    box-shadow: var(--shadow-md);
    letter-spacing: 0.3px;
}

.patent-badge {
    background: linear-gradient(135deg, var(--accent-orange), #d97706);
}

.award-badge {
    background: linear-gradient(135deg, var(--accent-purple), #7c3aed);
}

.publication h3 {
    font-size: 1.65rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    padding-right: 120px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -0.3px;
}

.publication-venue {
    font-size: 1.05rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.publication-description {
    font-size: 1.2rem;
    color: var(--text-medium);
    line-height: 2;
    margin-bottom: 2.5rem;
}

.research-visual {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2.5rem 0;
    padding: 2.5rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(139, 92, 246, 0.05));
    border-radius: 16px;
}

.research-stat {
    text-align: center;
    padding: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-medium);
    font-weight: 600;
}

.publication-actions {
    margin: 2.5rem 0;
}

.publication-highlights {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    margin-top: 1.75rem;
    box-shadow: var(--shadow-md);
}

.publication-highlights h4 {
    font-size: 1.15rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 700;
}

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

.publication-highlights li {
    padding: 0.6rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--text-medium);
    line-height: 1.6;
    font-size: 0.95rem;
}

.publication-highlights li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.research-impact {
    background: linear-gradient(135deg, var(--bg-gradient-1), var(--bg-gradient-2));
    color: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-2xl);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.research-impact::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
}

.impact-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
    position: relative;
    z-index: 1;
}

.research-impact h3 {
    font-size: 1.65rem;
    margin-bottom: 1rem;
    font-weight: 800;
    position: relative;
    z-index: 1;
}

.research-impact p {
    font-size: 1.05rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
    font-weight: 300;
}

/* Legacy Section */
.legacy-content {
    max-width: 900px;
    margin: 0 auto;
}

.lead {
    font-size: 1.2rem;
    text-align: center;
    color: var(--text-dark);
    margin-bottom: 2.5rem;
    line-height: 1.7;
    font-weight: 400;
}

.impact-areas {
    margin: 0 0 2.5rem 0;
}

.impact-item {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-lg);
    border-left: 4px solid transparent;
    background-image: linear-gradient(white, white),
                      linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    background-origin: border-box;
    background-clip: padding-box, border-box;
    border: 1px solid transparent;
    transition: all 0.4s ease;
    text-align: center;
}

.impact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.impact-item-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.impact-item h3 {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.impact-item p {
    color: var(--text-medium);
    font-size: 0.95rem;
    line-height: 1.6;
}

.memorial-message {
    background: linear-gradient(135deg, var(--bg-gradient-1), var(--bg-gradient-2), var(--bg-gradient-3));
    color: white;
    padding: 3rem 2.5rem;
    border-radius: 20px;
    margin-top: 0;
    text-align: center;
    box-shadow: var(--shadow-2xl);
    position: relative;
    overflow: hidden;
}

.memorial-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.memorial-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
    animation: float 3s ease-in-out infinite;
}

.memorial-message p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
    font-weight: 300;
}

.memorial-message .signature {
    font-size: 1.5rem;
    font-style: italic;
    font-weight: 700;
    margin-top: 1.5rem;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--text-dark), #0f172a);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

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

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-purple));
    transition: width 0.3s ease;
}

.footer-links a:hover::after {
    width: 100%;
}

.footer-links a:hover {
    color: var(--accent-purple);
}

.footer-text {
    font-size: 1rem;
    line-height: 1.7;
    opacity: 0.9;
    font-weight: 300;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content .subtitle {
        font-size: 1.2rem;
    }

    .section {
        padding: 60px 16px;
    }

    .section-title {
        font-size: 1.85rem;
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .project-featured {
        padding: 1.75rem;
    }

    .videos-grid {
        grid-template-columns: 1fr;
    }

    .values-grid {
        grid-template-columns: 1fr;
    }

    .publication {
        padding: 1.75rem;
    }

    .publication-badge {
        position: static;
        display: inline-block;
        margin-bottom: 1rem;
    }

    .publication h3 {
        padding-right: 0;
        font-size: 1.4rem;
    }

    .memorial-message {
        padding: 2.5rem 1.75rem;
    }

    .impact-item {
        padding: 1.75rem;
    }
}

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

/* Enhanced Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.section > * {
    animation: fadeIn 0.6s ease-out;
}

/* Foundation CTA Section */
#foundation-cta {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(5, 150, 105, 0.05));
    border-top: 2px solid rgba(16, 185, 129, 0.2);
    border-bottom: 2px solid rgba(16, 185, 129, 0.2);
}

.foundation-cta-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.foundation-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    display: block;
    animation: float 3s ease-in-out infinite;
}

.foundation-cta-content h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--secondary-color), #059669);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.foundation-tagline {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.6;
}

.foundation-description {
    font-size: 1.05rem;
    color: var(--text-medium);
    margin-bottom: 2rem;
    line-height: 1.7;
    font-weight: 300;
}

.btn-primary-large {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--secondary-color), #059669);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-lg);
    letter-spacing: 0.3px;
}

.btn-primary-large:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-2xl);
}

.foundation-cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-donate-main {
    background: linear-gradient(135deg, var(--accent-orange), #d97706);
}

.btn-donate-main:hover {
    background: linear-gradient(135deg, #d97706, #b45309);
}

/* Foundation Page Styles */
.foundation-hero {
    background: linear-gradient(135deg, #10b981 0%, #059669 50%, #047857 100%);
    color: white;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px 60px;
    margin-top: 60px;
    position: relative;
    overflow: hidden;
}

.foundation-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

.foundation-hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.foundation-icon-large {
    font-size: 5rem;
    margin-bottom: 1.5rem;
    animation: float 3s ease-in-out infinite;
}

.foundation-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -1px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.foundation-subtitle {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 400;
    opacity: 0.95;
}

.foundation-tagline {
    font-size: 1.2rem;
    font-style: italic;
    font-weight: 300;
    opacity: 0.9;
}

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

.foundation-mission {
    margin-bottom: 3rem;
}

.mission-text {
    font-size: 1.15rem;
    text-align: center;
    color: var(--text-medium);
    line-height: 1.8;
    font-weight: 300;
}

.legacy-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin: 2.5rem 0;
}

@media (max-width: 1024px) {
    .legacy-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .legacy-grid {
        grid-template-columns: 1fr;
    }
}

.legacy-achievement {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    text-align: center;
}

.legacy-achievement:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.achievement-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.legacy-achievement h3 {
    background: linear-gradient(135deg, var(--secondary-color), #059669);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.legacy-achievement p {
    color: var(--text-medium);
    font-size: 0.95rem;
    line-height: 1.6;
}

.alan-dream {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.05));
    padding: 2rem;
    border-radius: 16px;
    margin-top: 2.5rem;
    text-align: center;
    border: 2px solid rgba(16, 185, 129, 0.2);
}

.alan-dream p {
    font-size: 1.15rem;
    color: var(--text-dark);
    font-weight: 500;
    line-height: 1.7;
    margin: 0;
}

.get-involved-section {
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-light) 100%);
}

.involvement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2.5rem 0;
}

.involvement-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.involvement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(to right, var(--secondary-color), #059669);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.involvement-card:hover::before {
    transform: scaleX(1);
}

.involvement-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.involvement-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.involvement-card h3 {
    background: linear-gradient(135deg, var(--secondary-color), #059669);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.involvement-card p {
    color: var(--text-medium);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.btn-donate {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.75rem;
    background: linear-gradient(135deg, var(--secondary-color), #059669);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-md);
    letter-spacing: 0.3px;
    margin-top: 0.5rem;
}

.btn-donate:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #059669, #047857);
}

.cta-contact {
    background: linear-gradient(135deg, var(--secondary-color), #059669);
    color: white;
    padding: 2.5rem;
    border-radius: 20px;
    margin-top: 3rem;
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.contact-text {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 300;
    line-height: 1.6;
}

.contact-info {
    font-size: 1.1rem;
    margin: 0;
    font-weight: 400;
}

.contact-info a {
    color: white;
    text-decoration: underline;
    font-weight: 700;
    transition: opacity 0.3s ease;
}

.contact-info a:hover {
    opacity: 0.8;
}

.foundation-message {
    background: linear-gradient(135deg, var(--secondary-color), #059669, #047857);
    color: white;
    padding: 3rem 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-2xl);
    position: relative;
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
}

.foundation-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.message-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.message-text {
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
    font-weight: 300;
}

.message-tagline {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
    position: relative;
    z-index: 1;
    font-style: italic;
}

/* Responsive - Foundation Page */
@media (max-width: 768px) {
    .foundation-hero h1 {
        font-size: 2.2rem;
    }

    .foundation-icon-large {
        font-size: 4rem;
    }

    .involvement-grid {
        grid-template-columns: 1fr;
    }

    .foundation-message {
        padding: 2.5rem 1.75rem;
    }
}

/* Accessibility */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 4px;
}