:root {
    --primary: #0066FF;
    --text: #1E293B;
    --text-light: #64748B;
    --bg: #ffffff;
    --bg-light: #F8FAFC;
    --border: #E2E8F0;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    line-height: 1.6;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--border);
    z-index: 100;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.try-now {
    background: var(--primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
}

/* Language Selector */
.language-selector {
    position: relative;
}

.current-lang {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    font-size: 0.9rem;
}

.language-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 0.5rem 0;
    min-width: 150px;
}

.language-selector:hover .language-dropdown {
    display: block;
}

.language-dropdown a {
    display: block;
    padding: 0.5rem 1rem;
    text-decoration: none;
    color: var(--text);
}

/* Hero Section */
.hero {
    padding: 8rem 2rem 4rem;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.new-release {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #F0F7FF;
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.get-started {
    background: var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
}

.learn-more {
    background: #F1F5F9;
    color: var(--text);
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
}

.tech-tags {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.tech-tags span {
    background: #F1F5F9;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Features Section */
.features {
    padding: 6rem 2rem;
    background: var(--bg-light);
}

.features h2,
.technology h2,
.research h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.feature-card i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-light);
}

/* Technology Section */
.technology {
    padding: 6rem 2rem;
}

.tech-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.tech-info h3 {
    margin-bottom: 1rem;
}

.tech-info p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.tech-info ul {
    list-style: none;
    margin-bottom: 2rem;
}

.tech-info li {
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.tech-info li:before {
    content: "•";
    color: var(--primary);
    position: absolute;
    left: 0;
}

.paper-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

/* Research Section */
.research {
    padding: 6rem 2rem;
    background: var(--bg-light);
}

.research-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.research-content h3 {
    margin-bottom: 1.5rem;
}

.research-content ul {
    list-style: none;
    margin-bottom: 2rem;
}

.research-content li {
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.research-content li:before {
    content: "•";
    color: var(--primary);
    position: absolute;
    left: 0;
}

.citation {
    border-top: 1px solid var(--border);
    padding-top: 1.5rem;
    color: var(--text-light);
}

.citation a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    display: block;
    margin-top: 0.5rem;
}

/* CTA Section */
.cta {
    padding: 6rem 2rem;
    text-align: center;
    background: linear-gradient(to bottom, white, var(--bg-light));
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* Footer */
footer {
    background: var(--bg-light);
    padding: 4rem 2rem 2rem;
    border-top: 1px solid var(--border);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: var(--text-light);
}

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

.link-group h4 {
    margin-bottom: 1rem;
}

.link-group a {
    display: block;
    color: var(--text-light);
    text-decoration: none;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* Add to your existing CSS */
.ad-container {
    width: 100%;
    max-width: 1200px;
    margin: 2rem auto;
    text-align: center;
    min-height: 90px;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 8px;
    overflow: hidden;
}

/* Responsive ad containers */
@media (max-width: 768px) {
    .ad-container {
        margin: 1rem auto;
        padding: 0.5rem;
    }
}

/* Cookie Banner Styles */
.cookie-banner {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 1rem;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cookie-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text);
}

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

.cookie-accept {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
}

.cookie-manage {
    background: #F1F5F9;
    color: var(--text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
}

@media (max-width: 768px) {
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Add to your existing CSS */
.privacy-content {
    max-width: 800px;
    margin: 8rem auto 4rem;
    padding: 0 2rem;
}

.privacy-content h1 {
    margin-bottom: 1rem;
}

.privacy-content section {
    margin: 3rem 0;
}

.privacy-content h2 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.privacy-content ul {
    list-style: disc;
    margin-left: 1.5rem;
    margin-top: 1rem;
}

.privacy-content li {
    margin-bottom: 0.5rem;
}

/* Add to your existing CSS */
.cookie-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1001;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.cookie-option {
    margin: 1.5rem 0;
}

.cookie-option label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.cookie-option p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-left: 1.75rem;
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.cookie-reject {
    background: #F1F5F9;
    color: var(--text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
}

.cookie-save {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
}

.cookie-close {
    background: #F1F5F9;
    color: var(--text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
}