/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #2d3748;
    background-color: #ffffff;
}

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

/* Header and Navigation */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
}

.cat-emoji {
    font-size: 32px;
}

.app-name {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: #667eea;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

/* Main content spacing */
main {
    margin-top: 70px;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" patternUnits="userSpaceOnUse" width="100" height="100"><circle cx="20" cy="20" r="1" fill="white" opacity="0.1"/><circle cx="80" cy="40" r="1" fill="white" opacity="0.1"/><circle cx="40" cy="80" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-description p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    opacity: 0.9;
    line-height: 1.7;
}

.highlight {
    font-weight: 600;
    font-size: 1.2rem;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.cta-buttons {
    margin-top: 40px;
    display: flex;
    gap: 20px;
}

.btn {
    padding: 15px 30px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

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

.cat-detector {
    position: relative;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.cat-icon {
    font-size: 80px;
    text-align: center;
    filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.3));
}

.scanning-effect {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 2px solid #00ff88;
    border-radius: 15px;
    animation: scan 3s infinite;
    opacity: 0.7;
}

@keyframes scan {
    0%, 100% { 
        opacity: 0.3;
        transform: scale(1);
    }
    50% { 
        opacity: 0.8;
        transform: scale(1.05);
    }
}

/* Features Section */
.features {
    padding: 100px 0;
    background: #f7fafc;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: #2d3748;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #2d3748;
}

.feature-card p {
    color: #4a5568;
    line-height: 1.7;
}

/* Upcoming Section */
.upcoming {
    padding: 100px 0;
    background: linear-gradient(135deg, #4299e1 0%, #3182ce 100%);
    color: white;
}

.upcoming h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
}

.upcoming-description {
    max-width: 800px;
    margin: 0 auto 40px;
    text-align: center;
}

.upcoming-description p {
    font-size: 1.2rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.coming-soon {
    font-weight: 600;
    font-size: 1.3rem;
}

.progress-indicator {
    max-width: 400px;
    margin: 0 auto;
    text-align: center;
}

.progress-bar {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    height: 20px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    background: linear-gradient(90deg, #00ff88, #00d4aa);
    height: 100%;
    border-radius: 10px;
    transition: width 0.3s ease;
}

.progress-text {
    font-weight: 600;
    opacity: 0.9;
}

/* How it works */
.how-it-works {
    padding: 100px 0;
    background: white;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: #2d3748;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.step {
    text-align: center;
    padding: 30px;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.step h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #2d3748;
}

.step p {
    color: #4a5568;
    font-size: 1.1rem;
}

/* Page Header */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.page-header p {
    font-size: 1.3rem;
    opacity: 0.9;
}

.last-updated {
    font-size: 1rem !important;
    opacity: 0.8 !important;
    margin-top: 10px;
}

/* Support Content */
.support-content {
    padding: 80px 0;
}

.support-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
}

.support-section {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.support-section h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 30px;
    color: #2d3748;
}

.faq-list {
    space-y: 20px;
}

.faq-item {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #e2e8f0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #2d3748;
}

.faq-item p {
    color: #4a5568;
    line-height: 1.7;
}

.contact-info {
    space-y: 30px;
}

.contact-item {
    margin-bottom: 40px;
    padding: 30px;
    background: #f7fafc;
    border-radius: 15px;
    border-left: 4px solid #667eea;
}

.contact-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #2d3748;
}

.contact-item p {
    margin-bottom: 10px;
    color: #4a5568;
}

.contact-link {
    display: inline-block;
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    margin: 10px 0;
    padding: 8px 16px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.contact-link:hover {
    background: rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

.response-time {
    font-size: 0.9rem;
    color: #718096;
    font-style: italic;
}

/* Troubleshooting */
.troubleshooting {
    margin: 80px 0;
}

.troubleshooting h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 40px;
    color: #2d3748;
    text-align: center;
}

.troubleshooting-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.step-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
}

.step-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #2d3748;
}

.step-card ol {
    padding-left: 20px;
}

.step-card li {
    margin-bottom: 10px;
    color: #4a5568;
    line-height: 1.6;
}

/* Version and Requirements */
.version-info, .update-info {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
}

.version-info h2, .update-info h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 30px;
    color: #2d3748;
}

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

.requirement-item {
    padding: 20px;
    background: #f7fafc;
    border-radius: 10px;
    border-left: 4px solid #4299e1;
}

.update-notes .version {
    background: #f7fafc;
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 20px;
}

.update-notes h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #2d3748;
}

.update-notes ul {
    padding-left: 20px;
}

.update-notes li {
    margin-bottom: 8px;
    color: #4a5568;
}

/* Privacy Content */
.privacy-content {
    padding: 80px 0;
}

.privacy-overview {
    margin-bottom: 60px;
    text-align: center;
}

.privacy-overview h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    color: #2d3748;
}

.overview-text {
    font-size: 1.2rem;
    color: #4a5568;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.privacy-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.highlight-item .icon {
    font-size: 2rem;
}

.highlight-item strong {
    color: #2d3748;
}

.privacy-sections {
    margin-bottom: 60px;
}

.privacy-section {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
    border: 1px solid #e2e8f0;
}

.privacy-section h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 25px;
    color: #2d3748;
    border-bottom: 3px solid #667eea;
    padding-bottom: 10px;
}

.privacy-section h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 30px 0 15px;
    color: #2d3748;
}

.privacy-section p {
    margin-bottom: 15px;
    color: #4a5568;
    line-height: 1.7;
}

.privacy-section ul {
    margin: 20px 0;
    padding-left: 30px;
}

.privacy-section li {
    margin-bottom: 10px;
    color: #4a5568;
    line-height: 1.6;
}

.privacy-section a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.privacy-section a:hover {
    text-decoration: underline;
}

.contact-details {
    background: #f7fafc;
    padding: 30px;
    border-radius: 15px;
    margin-top: 20px;
    border-left: 4px solid #667eea;
}

.contact-details p {
    margin-bottom: 15px;
}

/* Policy Footer */
.policy-footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 40px;
    border-radius: 20px;
    text-align: center;
}

.policy-footer h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 40px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.summary-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.summary-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.summary-item p {
    opacity: 0.9;
}

/* Footer */
footer {
    background: #2d3748;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3, .footer-section h4 {
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-section h3 {
    font-size: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #667eea;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #4a5568;
    color: #a0aec0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-links {
        gap: 15px;
        font-size: 0.9rem;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .steps {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .troubleshooting-steps {
        grid-template-columns: 1fr;
    }
    
    .requirements {
        grid-template-columns: 1fr;
    }
    
    .privacy-highlights {
        grid-template-columns: 1fr;
    }
    
    .summary-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .page-header h1 {
        font-size: 2.2rem;
    }
    
    .page-header p {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .cat-detector {
        padding: 30px;
    }
    
    .cat-icon {
        font-size: 60px;
    }
    
    .features h2,
    .how-it-works h2,
    .upcoming h2 {
        font-size: 2rem;
    }
    
    .feature-card,
    .support-section,
    .privacy-section {
        padding: 25px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 1rem;
    }
}