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

:root {
    /* Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --background: #ffffff;
    --surface: #f8fafc;
    --surface-secondary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-light: rgba(0, 0, 0, 0.05);
    --gradient: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    
    /* Dark mode colors */
    --dark-background: #0f172a;
    --dark-surface: #1e293b;
    --dark-surface-secondary: #334155;
    --dark-text-primary: #f8fafc;
    --dark-text-secondary: #cbd5e1;
    --dark-text-tertiary: #94a3b8;
    --dark-border: #334155;
    --dark-shadow: rgba(0, 0, 0, 0.3);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 0.75rem;
    --border-radius-sm: 0.375rem;
    --border-radius-lg: 1rem;
    
    /* Animation */
    --transition: all 0.2s ease-in-out;
    --transition-slow: all 0.3s ease-in-out;
}

/* Base Typography */
body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-logo .material-icons {
    font-size: 28px;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link.download-btn {
    background: var(--gradient);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
}

.nav-link.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: var(--font-size-base);
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border-color: var(--border);
}

.btn-secondary:hover {
    background: var(--surface);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--shadow);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary-color);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #1e293b, #334155);
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.15);
    transform: rotate(-5deg);
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 6px;
    background: #64748b;
    border-radius: 3px;
}

.mockup-screen {
    width: 100%;
    height: 100%;
    border-radius: 30px;
    object-fit: cover;
    background: var(--surface);
}

/* Sections */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.feature-card {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition-slow);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px var(--shadow);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.feature-icon .material-icons {
    font-size: 36px;
    color: white;
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background: var(--surface);
}

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

.step {
    text-align: center;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 40px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: white;
    margin: 0 auto var(--spacing-lg);
}

.step h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.step p {
    color: var(--text-secondary);
}

/* Privacy Section */
.privacy {
    padding: 100px 0;
    background: white;
}

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

.privacy-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.privacy-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.privacy-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.privacy-feature .material-icons {
    font-size: 28px;
    color: var(--accent-color);
    margin-top: 4px;
}

.privacy-feature h4 {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.privacy-feature p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.privacy-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.privacy-shield {
    width: 200px;
    height: 200px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    animation: pulse 3s infinite;
}

.privacy-shield::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-light);
    border-radius: 50%;
    animation: ripple 2s infinite;
}

.privacy-shield .material-icons {
    font-size: 80px;
    color: white;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes ripple {
    0% { 
        transform: scale(1);
        opacity: 1;
    }
    100% { 
        transform: scale(1.5);
        opacity: 0;
    }
}

/* Download Section */
.download {
    padding: 100px 0;
    background: var(--surface);
}

.download-content {
    text-align: center;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.download-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) var(--spacing-xl);
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    font-weight: 600;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px var(--shadow);
    border-color: var(--primary-color);
}

.google-play img {
    height: 60px;
}

.direct-download .material-icons {
    font-size: 32px;
    color: var(--primary-color);
}

.download-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.download-subtext {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.download-info {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.info-item .material-icons {
    font-size: 20px;
    color: var(--primary-color);
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.footer-logo .material-icons {
    font-size: 28px;
    color: var(--primary-light);
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-links a {
    color: var(--text-tertiary);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--dark-border);
    color: var(--text-tertiary);
}

/* Privacy Policy Page Styles */
.privacy-policy-page {
    padding-top: 100px;
    min-height: 100vh;
    background: var(--surface);
}

.policy-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-3xl) 0;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px var(--shadow-light);
}

.policy-intro {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.policy-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.policy-content {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-3xl);
    box-shadow: 0 10px 30px var(--shadow-light);
    margin-bottom: var(--spacing-2xl);
}

.policy-section {
    margin-bottom: var(--spacing-3xl);
}

.policy-section h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: var(--spacing-sm);
}

.policy-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.policy-section p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.policy-section ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-xl);
}

.policy-section li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.info-item {
    padding: var(--spacing-md);
    background: var(--surface);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--primary-color);
}

.highlight-box {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border: 1px solid #93c5fd;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.highlight-box .material-icons {
    color: var(--primary-color);
    font-size: 24px;
    margin-top: 2px;
}

.privacy-guarantees {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.guarantee-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
}

.guarantee-item .material-icons {
    color: #ef4444;
    font-size: 28px;
    margin-top: 4px;
}

.guarantee-item strong {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.guarantee-item p {
    margin: 0;
    font-size: var(--font-size-sm);
}

.service-info {
    background: var(--surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
}

.service-info p {
    margin-bottom: var(--spacing-sm);
}

.contact-info {
    background: var(--surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
}

.policy-summary {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: 0 10px 30px var(--shadow-light);
    text-align: center;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.summary-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--surface);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.summary-item .material-icons {
    color: var(--accent-color);
    font-size: 20px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-2xl);
    }
    
    .privacy-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .steps-container .step:not(:last-child)::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
        gap: var(--spacing-lg);
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-container {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .download-info {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .policy-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .policy-content {
        padding: var(--spacing-xl);
    }
    
    .privacy-guarantees {
        grid-template-columns: 1fr;
    }
    
    .summary-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container,
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .feature-card {
        padding: var(--spacing-lg);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    .phone-mockup {
        width: 200px;
        height: 400px;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .download,
    .hero-buttons {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .hero {
        padding: 20px 0;
    }
    
    .section-title {
        font-size: 18pt;
        page-break-after: avoid;
    }
    
    .policy-section {
        page-break-inside: avoid;
    }
}