/* 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', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

p {
    margin-bottom: 1rem;
    color: #666;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #2563eb;
    border: 2px solid #2563eb;
}

.btn-secondary:hover {
    background: #2563eb;
    color: white;
    transform: translateY(-2px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-brand h1 {
    font-size: 1.5rem;
    color: #2563eb;
    margin: 0;
}

.nav-brand .tagline {
    font-size: 0.8rem;
    color: #666;
    font-weight: 400;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

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

.nav-menu a:hover {
    color: #2563eb;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

/* Overlay for better text readability */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.85);
    z-index: 0;
}

.hero > .container {
    position: relative;
    z-index: 1;
}

.hero .container {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 900px;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
    width: 100%;
}

.hero-title {
    font-size: 3rem;
    color: #333;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #555;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-graphic {
    width: 300px;
    height: 300px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brain-animation {
    width: 100%;
    height: 100%;
    max-width: 300px;
    max-height: 300px;
    animation: float 4s ease-in-out infinite;
}

.brain-path {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: drawPath 3s ease-in-out forwards;
}

.neural-line {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: drawLine 2s ease-in-out infinite;
}

.neural-node {
    animation: pulse 2s ease-in-out infinite;
}

.pulse-node {
    filter: drop-shadow(0 0 6px rgba(37, 99, 235, 0.6));
}

@keyframes drawPath {
    to {
        stroke-dashoffset: 0;
    }
}

@keyframes drawLine {
    0%, 100% {
        stroke-dashoffset: 200;
        opacity: 0.3;
    }
    50% {
        stroke-dashoffset: 0;
        opacity: 0.8;
    }
}

@keyframes pulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 0.8;
    }
    50% { 
        transform: scale(1.3);
        opacity: 1;
    }
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg);
    }
    50% { 
        transform: translateY(-10px) rotate(2deg);
    }
}

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

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

.section-header h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: #f8f9fa;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

.about-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.about-card h3 {
    color: #333;
    margin-bottom: 1rem;
}

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

/* Mission Section */
.mission .container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.mission-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    width: 100%;
}

.mission-text {
    text-align: center;
    max-width: 900px;
    width: 100%;
}

.mission-text h2 {
    color: #333;
    margin-bottom: 1.5rem;
}

.mission-text p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.mission-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    width: 100%;
    max-width: 900px;
}

.stat {
    text-align: center;
    padding: 1rem;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 8px;
}

.stat h3 {
    color: #2563eb;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.stat p {
    color: #666;
    font-size: 0.9rem;
    margin: 0;
}

/* Mission Visual */
.policy-diagram {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    max-width: 300px;
    margin: 0 auto;
}

.policy-node {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
    padding: 1.5rem 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

/* Collaborators Section */
.collaborators {
    background: #f8f9fa;
}

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

.collaborator-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.collaborator-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.collaborator-logo {
    margin-bottom: 1rem;
}

.collaborator-logo h3 {
    font-size: 1.5rem;
    margin: 0;
}

.collaborator-logo h3 a {
    color: #2563eb;
    text-decoration: none;
    transition: color 0.3s ease;
}

.collaborator-logo h3 a:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

.collaborator-card h4 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.collaborator-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.collaborator-card p a {
    color: #2563eb;
    text-decoration: none;
    transition: color 0.3s ease, text-decoration 0.3s ease;
}

.collaborator-card p a:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

.collaborator-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Contact Section */
.contact .container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
    justify-items: center;
    max-width: 1200px;
    width: 100%;
}

.contact-info {
    max-width: 500px;
    text-align: center;
}

.contact-info h2 {
    color: #333;
    margin-bottom: 1rem;
}

.contact-info > p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: left;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-icon {
    font-size: 1.5rem;
    margin-top: 0.2rem;
}

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

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

.contact-item a {
    color: #2563eb;
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-form {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
    max-width: 500px;
    width: 100%;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    margin-top: 1rem;
    padding: 0.8rem;
    border-radius: 6px;
    font-weight: 500;
    text-align: center;
    display: none;
}

.form-status.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
    display: block;
}

.form-status.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
    display: block;
}

.form-status.loading {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #93c5fd;
    display: block;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: #ccc;
    margin-bottom: 0.5rem;
}

.footer-tagline {
    font-style: italic;
    color: #999;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

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

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

.footer-column ul li a:hover {
    color: #2563eb;
}

.footer-bottom {
    border-top: 1px solid #555;
    padding-top: 1rem;
    text-align: center;
}

.footer-bottom p {
    color: #999;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .ai-graphic {
        width: 250px;
        height: 250px;
    }
    
    .brain-animation {
        max-width: 250px;
        max-height: 250px;
    }
    
    .mission-content {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
    }
    
    .mission-stats {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
    
    .policy-diagram {
        grid-template-columns: 1fr;
        max-width: 200px;
    }
    
    .collaborators-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        justify-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.3rem; }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .collaborators-grid {
        grid-template-columns: 1fr;
    }
    
    .collaborator-card {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
}

/* Smooth scrolling and animations */
@media (prefers-reduced-motion: no-preference) {
    .about-card,
    .collaborator-card {
        animation: fadeInUp 0.6s ease-out;
    }
    
    .about-card:nth-child(2) { animation-delay: 0.1s; }
    .about-card:nth-child(3) { animation-delay: 0.2s; }
    .about-card:nth-child(4) { animation-delay: 0.3s; }
    
    .collaborator-card:nth-child(2) { animation-delay: 0.1s; }
    .collaborator-card:nth-child(3) { animation-delay: 0.2s; }
}

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