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

:root {
    /* Minimalist color palette */
    --primary-color: #000000;
    --secondary-color: #333333;
    --accent-color: #666666;
    --background-color: #FFFFFF;
    --surface-color: #FAFAFA;
    --text-primary: #000000;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --border-color: #E5E5E5;
    --shadow-color: rgba(0, 0, 0, 0.05);
    
    /* Typography */
    --font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 30px;
    --font-size-4xl: 36px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #000000;
        --surface-color: #111111;
        --text-primary: #FFFFFF;
        --text-secondary: #CCCCCC;
        --text-tertiary: #888888;
        --border-color: #333333;
        --shadow-color: rgba(255, 255, 255, 0.05);
    }
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--background-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--background-color);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-weight: 500;
    font-size: var(--font-size-xl);
    letter-spacing: -0.5px;
}

.nav-icon {
    font-size: var(--font-size-xl);
}

.nav-title {
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 400;
    font-size: var(--font-size-base);
    transition: color 0.2s ease;
    letter-spacing: -0.2px;
}

.nav-link:hover {
    color: var(--primary-color);
}

.download-btn {
    background-color: var(--primary-color);
    color: white !important;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 0;
    font-weight: 400;
    font-size: var(--font-size-base);
    letter-spacing: -0.2px;
    border: 1px solid var(--primary-color);
    transition: all 0.2s ease;
}

.download-btn:hover {
    background-color: var(--background-color);
    color: var(--primary-color) !important;
    border-color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
    display: block;
}

/* Hero Section */
.hero {
    padding: 160px 0 var(--spacing-3xl);
    background-color: var(--background-color);
    color: var(--text-primary);
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    text-align: center;
}

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

.hero-logo {
    margin-bottom: var(--spacing-xl);
    display: flex;
    justify-content: center;
}

.hero-logo-img {
    width: 100px;
    height: 100px;
    border-radius: 0;
    object-fit: contain;
    box-shadow: none;
    animation: fadeInUp 0.8s ease-out forwards;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    color: var(--text-secondary);
    line-height: 1.5;
    font-weight: 300;
    letter-spacing: -0.3px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}



.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: 0;
    font-weight: 400;
    font-size: var(--font-size-base);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    cursor: pointer;
    letter-spacing: -0.2px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: 1px solid var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--background-color);
    color: var(--primary-color);
    transform: none;
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--surface-color);
    border-color: var(--text-primary);
    transform: none;
}

.nav-icon-img {
    width: 40px;
    height: 40px;
    border-radius: 0;
    object-fit: contain;
    display: block;
}

.app-icon-img {
    width: 80px;
    height: 80px;
    border-radius: 0;
    object-fit: contain;
    display: block;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Sections */
section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 300;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    letter-spacing: -0.8px;
}

.section-subtitle {
    font-size: var(--font-size-base);
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    color: var(--text-secondary);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
    line-height: 1.6;
    letter-spacing: -0.2px;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.feature-card {
    background-color: var(--background-color);
    padding: var(--spacing-2xl);
    border-radius: 0;
    box-shadow: none;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--primary-color);
}

.feature-card:hover {
    transform: none;
    border-left-color: var(--text-primary);
    background-color: var(--surface-color);
}

.feature-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    display: block;
}

.feature-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 300;
    letter-spacing: -0.1px;
}

/* Languages Section */
.languages {
    background-color: var(--surface-color);
}

.languages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.language-card {
    background-color: var(--background-color);
    padding: var(--spacing-xl);
    border-radius: 0;
    box-shadow: none;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    text-align: center;
}

.language-card:hover {
    transform: none;
    background-color: var(--surface-color);
    border-color: var(--text-primary);
}

.language-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    display: block;
}

.language-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.language-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: var(--font-size-sm);
    font-weight: 300;
    letter-spacing: -0.1px;
}



/* Support Section */
.support-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.faq-section h3, .troubleshooting-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.faq-item {
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: 0;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--spacing-lg);
    background-color: var(--background-color);
    border: none;
    text-align: left;
    font-size: var(--font-size-base);
    font-weight: 400;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s ease;
    letter-spacing: -0.2px;
}

.faq-question:hover {
    background-color: var(--surface-color);
}

.faq-icon {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-color);
    transition: transform 0.2s ease;
}

.faq-question.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-lg);
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    background-color: var(--surface-color);
}

.faq-answer.active {
    padding: var(--spacing-lg);
    max-height: 500px;
}

.faq-answer p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 300;
    letter-spacing: -0.1px;
}

.trouble-item {
    background-color: var(--background-color);
    padding: var(--spacing-lg);
    border-radius: 0;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--accent-color);
}

.trouble-item h4 {
    font-size: var(--font-size-lg);
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.trouble-item ul {
    list-style: none;
    padding: 0;
}

.trouble-item li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
    font-weight: 300;
    letter-spacing: -0.1px;
}

.trouble-item li::before {
    content: "—";
    color: var(--accent-color);
    font-weight: normal;
    position: absolute;
    left: 0;
}

/* Privacy Section */
.privacy {
    background-color: var(--surface-color);
}

.privacy-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.privacy-card {
    background-color: var(--background-color);
    padding: var(--spacing-xl);
    border-radius: 0;
    box-shadow: none;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    text-align: center;
}

.privacy-card:hover {
    transform: none;
    background-color: var(--surface-color);
    border-color: var(--text-primary);
}

.privacy-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    display: block;
}

.privacy-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.privacy-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 300;
    letter-spacing: -0.1px;
}



/* Download Section */
.download {
    background-color: var(--surface-color);
    color: var(--text-primary);
    border-top: 1px solid var(--border-color);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    margin-top: var(--spacing-2xl);
}

.download-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.app-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.app-icon {
    width: 80px;
    height: 80px;
    background-color: transparent;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
    position: relative;
    z-index: 10;
}

.app-details h3 {
    font-size: var(--font-size-2xl);
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

.app-details p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 300;
    letter-spacing: -0.2px;
}

.app-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.stars {
    color: #FFD700;
    font-size: var(--font-size-lg);
}

.rating-text {
    font-weight: 600;
}



.download-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn-app-store {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 0;
    text-decoration: none;
    font-weight: 400;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: all 0.2s ease;
    border: 1px solid var(--primary-color);
    letter-spacing: -0.2px;
}

.btn-app-store:hover {
    background-color: var(--background-color);
    color: var(--primary-color);
    transform: none;
}

.app-store-text {
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

.app-store-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
}



/* Footer */
.footer {
    background-color: var(--background-color);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 300;
    letter-spacing: -0.1px;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    font-weight: 300;
    letter-spacing: -0.1px;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 300;
    letter-spacing: -0.1px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--surface-color);
        border-top: 1px solid var(--border-color);
        padding: var(--spacing-md);
        flex-direction: column;
        gap: var(--spacing-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-btn {
        display: flex !important; /* Force display on mobile */
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-container {
        text-align: center;
    }
    
    .hero-logo-img {
        width: 100px;
        height: 100px;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .languages-grid {
        grid-template-columns: 1fr;
    }
    
    .support-content {
        grid-template-columns: 1fr;
    }
    
    .privacy-content {
        grid-template-columns: 1fr;
    }
    
    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .app-info {
        justify-content: center;
    }
    
    .app-screenshots {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .mockup-screen {
        width: 240px;
        height: 480px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: 100px 0 var(--spacing-2xl);
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-logo-img {
        width: 80px;
        height: 80px;
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .feature-card {
        padding: var(--spacing-lg);
    }
    
    .btn-primary, .btn-secondary {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
}

/* Navbar scroll effect */
.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.dark-theme .navbar.scrolled {
    background-color: rgba(28, 28, 30, 0.95);
}

/* Image loading animation */
img.loaded {
    opacity: 1;
    transition: opacity 0.3s ease;
}

img {
    opacity: 1; /* Changed from 0 to 1 to make images visible by default */
}

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

/* Focus styles for accessibility */
button:focus, a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}