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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #ffffff;
    color: #1a1a1a;
    line-height: 1.6;
    font-weight: 400;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid #e5e5e5;
    z-index: 1000;
    padding: 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 18px;
    color: #1a1a1a;
}

.brand-logo {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: cover;
}

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

.nav-links a {
    text-decoration: none;
    color: #6b7280;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: #1a1a1a;
}

.nav-cta {
    background: #2563eb !important;
    color: white !important;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 600;
}

.nav-cta:hover {
    background: #1d4ed8 !important;
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: #1a1a1a;
}

.title-highlight {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-brand {
    color: #2563eb;
}

.hero-description {
    font-size: 20px;
    color: #6b7280;
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #2563eb;
    color: white;
    padding: 16px 24px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.btn-primary.large {
    padding: 20px 32px;
    font-size: 18px;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: white;
    color: #6b7280;
    padding: 16px 24px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    border: 1px solid #e5e7eb;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: #f9fafb;
    color: #1a1a1a;
    transform: translateY(-2px);
}

.btn-icon {
    font-size: 18px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: left;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: #6b7280;
    font-weight: 500;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.phone-mockup {
    position: relative;
}

.hero-phone {
    max-width: 280px;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.phone-glow {
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 44px;
    opacity: 0.1;
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.1; }
    50% { transform: scale(1.05); opacity: 0.2; }
}

/* Section Containers */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-description {
    font-size: 18px;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background: #f8fafc;
    padding: 32px;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    border-color: #cbd5e1;
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 20px;
    display: block;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.feature-description {
    font-size: 16px;
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 20px;
}

.feature-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.highlight {
    background: #e0e7ff;
    color: #3730a3;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

/* Screenshots Section */
.screenshots {
    padding: 100px 0;
    background: #f8fafc;
}

.screenshot-gallery {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.screenshot-item {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.screenshot-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 60px;
    align-items: center;
}

.screenshot-item.reverse .screenshot-content {
    grid-template-columns: 300px 1fr;
}

.screenshot-item.reverse .screenshot-info {
    order: 2;
}

.screenshot-item.reverse .screenshot-image {
    order: 1;
}

.screenshot-info h3 {
    font-size: 24px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 16px;
}

.screenshot-info p {
    font-size: 16px;
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 20px;
}

.screenshot-info ul {
    list-style: none;
    padding: 0;
}

.screenshot-info li {
    font-size: 14px;
    color: #6b7280;
    padding: 8px 0;
    border-bottom: 1px solid #f1f5f9;
    position: relative;
    padding-left: 20px;
}

.screenshot-info li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: 600;
}

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

.screenshot-image img {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

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

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

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

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 24px;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.step-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.step-content p {
    font-size: 16px;
    color: #6b7280;
    line-height: 1.6;
}

/* Privacy Section */
.privacy-section {
    padding: 100px 0;
    background: #f8fafc;
}

.privacy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.privacy-features {
    margin: 40px 0;
}

.privacy-feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.privacy-icon {
    font-size: 24px;
    margin-top: 4px;
}

.privacy-feature h4 {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
}

.privacy-feature p {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.5;
}

.privacy-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: color 0.2s ease;
}

.privacy-link:hover {
    color: #1d4ed8;
}

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

.privacy-graphic {
    position: relative;
}

.device-outline {
    width: 200px;
    height: 300px;
    border: 3px solid #e2e8f0;
    border-radius: 20px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.shield-icon {
    font-size: 48px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Download Section */
.download-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
    text-align: center;
}

.download-section .section-title {
    color: white;
}

.download-section .section-description {
    color: #cbd5e1;
}

.download-buttons {
    margin: 40px 0;
}

.download-note {
    margin-top: 32px;
}

.download-note p {
    font-size: 14px;
    color: #94a3b8;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 40px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid #374151;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 18px;
}

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

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: #6b7280;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .screenshot-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .screenshot-item.reverse .screenshot-content {
        grid-template-columns: 1fr;
    }
    
    .privacy-content {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-description {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 30px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-container {
        grid-template-columns: 1fr;
    }
    
    .screenshot-item {
        padding: 24px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
    
    .footer-links {
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .section-container {
        padding: 0 16px;
    }
    
    .nav-container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .feature-card {
        padding: 24px;
    }
    
    .screenshot-item {
        padding: 20px;
    }
}