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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* 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;
    transition: all 0.3s ease;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #2563eb;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: #374151;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.language-switcher {
    position: relative;
}

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid #e5e7eb;
    background: white;
    color: #374151;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    min-width: 120px;
    justify-content: space-between;
}

.dropdown-btn:hover {
    border-color: #2563eb;
    color: #2563eb;
}

.dropdown-arrow {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.dropdown.active .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-btn {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: none;
    background: transparent;
    color: #374151;
    cursor: pointer;
    font-size: 14px;
    text-align: left;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    background: #f3f4f6;
    color: #2563eb;
}

.lang-btn.active {
    background: #2563eb;
    color: white;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero-subtitle-main {
    font-size: 2rem;
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: 24px;
    opacity: 0.95;
    color: #f1f5f9;
}

.hero-subtitle {
    white-space: pre-line;
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 32px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn {
    padding: 14px 28px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: white;
    color: #2563eb;
}

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

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #2563eb;
}

.hero-image {
    text-align: center;
}

.phone-mockup {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* Features Section */
.features {
    padding: 100px 0;
    background: #f8fafc;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: #1f2937;
}

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

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1f2937;
}

.feature-card p {
    color: #6b7280;
    line-height: 1.7;
}

/* App Preview Section */
.app-preview {
    padding: 100px 0;
    background: white;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.preview-item {
    text-align: center;
}

.preview-image {
    width: 100%;
    max-width: 250px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.preview-item h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.download-subtitle {
    font-size: 1.5rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    margin-bottom: 30px;
}

.app-store-btn {
    display: inline-block;
    background: #000;
    color: white;
    padding: 12px 20px;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid #000;
    min-width: 200px;
}

.app-store-btn:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.app-store-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.apple-logo {
    width: 32px;
    height: 32px;
    color: white;
}

.app-store-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.download-text {
    font-size: 12px;
    opacity: 0.8;
    font-weight: 400;
}

.store-name {
    font-size: 18px;
    font-weight: 600;
    margin-top: -2px;
}

.qr-code {
    text-align: center;
}

.qr-image {
    width: 120px;
    height: 120px;
    background: white;
    border-radius: 12px;
    padding: 10px;
    margin-bottom: 10px;
}

.download-note {
    opacity: 0.8;
    font-size: 14px;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 16px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .container {
        padding: 0 15px;
    }
}

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

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

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

/* Privacy Policy Styles */
.privacy-policy {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.policy-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    line-height: 1.8;
}

.policy-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

.policy-content .last-updated {
    text-align: center;
    color: #7f8c8d;
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.policy-content h2 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #34495e;
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #3498db;
}

.policy-content h3 {
    font-size: 1.4rem;
    font-weight: 500;
    color: #2c3e50;
    margin: 30px 0 15px;
}

.policy-content p {
    margin-bottom: 20px;
    color: #555;
    font-size: 1.1rem;
}

.policy-content ul {
    margin: 20px 0;
    padding-left: 30px;
}

.policy-content li {
    margin-bottom: 10px;
    color: #555;
    font-size: 1.1rem;
}

.policy-content strong {
    color: #2c3e50;
    font-weight: 600;
}

/* Responsive Design for Privacy Policy */
@media (max-width: 768px) {
    .policy-content {
        padding: 40px 30px;
        margin: 0 20px;
    }
    
    .policy-content h1 {
        font-size: 2rem;
    }
    
    .policy-content h2 {
        font-size: 1.5rem;
    }
    
    .policy-content h3 {
        font-size: 1.2rem;
    }
    
    .policy-content p,
    .policy-content li {
        font-size: 1rem;
    }
}

/* About Page Styles */
.about-page {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.about-header {
    text-align: center;
    margin-bottom: 60px;
    color: white;
}

.about-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.about-subtitle {
    font-size: 1.2rem;
    line-height: 1.6;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.about-content {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.about-section {
    margin-bottom: 40px;
}

.about-section:last-child {
    margin-bottom: 0;
}

.about-section h2 {
    color: #2c3e50;
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 20px;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

.about-section h3 {
    color: #34495e;
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    margin-top: 25px;
}

.about-section h4 {
    color: #667eea;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.about-section p {
    color: #555;
    line-height: 1.7;
    margin-bottom: 15px;
}

.about-section ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.about-section li {
    color: #555;
    line-height: 1.7;
    margin-bottom: 10px;
}

.feature-detail {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 25px;
    border-left: 4px solid #667eea;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.feature-item {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.target-audience {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    margin-top: 20px;
}

.target-audience li {
    margin-bottom: 15px;
    padding-left: 10px;
    border-left: 3px solid #667eea;
}

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

.sharing-item {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.app-conclusion {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    margin-top: 20px;
}

.app-conclusion h2 {
    color: white;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
    margin-bottom: 20px;
}

.legal-links {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    margin-top: 20px;
}

.legal-links a {
    color: #667eea;
    text-decoration: none;
    word-break: break-all;
}

.legal-links a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .about-header h1 {
        font-size: 2rem;
    }
    
    .about-content {
        padding: 25px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .sharing-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .container {
        padding: 0 15px;
    }
}

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

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

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

/* Privacy Policy Styles */
.privacy-policy {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.policy-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    line-height: 1.8;
}

.policy-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

.policy-content .last-updated {
    text-align: center;
    color: #7f8c8d;
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.policy-content h2 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #34495e;
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #3498db;
}

.policy-content h3 {
    font-size: 1.4rem;
    font-weight: 500;
    color: #2c3e50;
    margin: 30px 0 15px;
}

.policy-content p {
    margin-bottom: 20px;
    color: #555;
    font-size: 1.1rem;
}

.policy-content ul {
    margin: 20px 0;
    padding-left: 30px;
}

.policy-content li {
    margin-bottom: 10px;
    color: #555;
    font-size: 1.1rem;
}

.policy-content strong {
    color: #2c3e50;
    font-weight: 600;
}

/* Responsive Design for Privacy Policy */
@media (max-width: 768px) {
    .policy-content {
        padding: 40px 30px;
        margin: 0 20px;
    }
    
    .policy-content h1 {
        font-size: 2rem;
    }
    
    .policy-content h2 {
        font-size: 1.5rem;
    }
    
    .policy-content h3 {
        font-size: 1.2rem;
    }
    
    .policy-content p,
    .policy-content li {
        font-size: 1rem;
    }
}