* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    padding: 0;
    margin: 0;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'RB Multima Test', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

p {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

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

/* Header & Navigation */
header {
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: block;
    height: 40px;
    width: auto;
    text-decoration: none;
}

.logo img {
    height: 100%;
    width: auto;
    display: block;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: -moz-crisp-edges;
    object-fit: contain;
}

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

.nav-links a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #0066cc;
}

.cta-button {
    background-color: #0066cc;
    color: white;
    padding: 12px 30px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: #0052a3;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    background-color: white;
    color: #667eea;
    padding: 15px 40px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1em;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    padding: 15px 40px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1em;
    border: 2px solid white;
    transition: background-color 0.3s ease;
}

.btn-secondary:hover {
    background-color: rgba(255,255,255,0.1);
}

/* App Store Details Section */
.app-store-section {
    padding: 60px 20px;
    background-color: #ffffff;
}

.app-store-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2.5fr;
    gap: 40px;
    align-items: start;
}

.app-sidebar {
    position: sticky;
    top: 100px;
}

.app-icon-container {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-bottom: 30px;
}

.app-icon {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: -moz-crisp-edges;
    object-fit: cover;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 1px solid rgba(0,0,0,0.1);
}

.app-title-sidebar {
    font-family: 'RB Multima Test', sans-serif;
    font-size: 1.5em;
    font-weight: 700;
    color: #2c3e50;
    margin: 0;
}

.app-info-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
    padding-top: 25px;
    border-top: 1px solid #e5e7eb;
}

.app-info-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.app-info-label {
    font-family: 'RB Multima Test', sans-serif;
    font-size: 0.9em;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 5px;
}

.app-info-value {
    font-family: 'SF Pro Display', sans-serif;
    font-size: 0.95em;
    color: #666;
}

.app-highlights {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.app-highlight-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'SF Pro Display', sans-serif;
    font-size: 0.95em;
    color: #666;
}

.app-highlight-check {
    width: 9px;
    height: 6px;
    flex-shrink: 0;
}

.app-rating {
    display: flex;
    align-items: center;
    gap: 8px;
}

.app-star {
    width: 16px;
    height: 16px;
    fill: #2c3e50;
}

.app-install-btn {
    width: 100%;
    padding: 14px 24px;
    background-color: #000000;
    color: #ffffff;
    border: none;
    border-radius: 50px;
    font-family: 'SF Pro Display', sans-serif;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-top: 20px;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.app-install-btn:hover {
    background-color: #333333;
}

.app-main-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.app-gallery {
    margin-bottom: 40px;
}

.app-gallery-main {
    display: grid;
    grid-template-columns: 75% 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.app-gallery-primary {
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
}

.app-gallery-primary img {
    width: 100%;
    height: auto;
    display: block;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: -moz-crisp-edges;
}

.app-gallery-thumbnails {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.app-gallery-thumb {
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    position: relative;
}

.app-gallery-thumb img {
    width: 100%;
    height: auto;
    display: block;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: -moz-crisp-edges;
}

.app-gallery-thumb.more {
    opacity: 0.5;
}

.app-gallery-more-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 8px 16px;
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 50px;
    font-family: 'SF Pro Display', sans-serif;
    font-size: 0.85em;
    cursor: pointer;
}

.app-description {
    margin-bottom: 40px;
}

.app-description h2 {
    font-family: 'RB Multima Test', sans-serif;
    font-size: 2em;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
    line-height: 1.3;
}

.app-description p {
    font-family: 'SF Pro Display', sans-serif;
    font-size: 1.05em;
    color: #666;
    line-height: 1.7;
    margin-bottom: 20px;
}

.app-description ul {
    list-style: disc;
    padding-left: 25px;
    margin-top: 20px;
}

.app-description li {
    font-family: 'SF Pro Display', sans-serif;
    font-size: 1.05em;
    color: #666;
    line-height: 1.7;
    margin-bottom: 10px;
}

.app-details-grid {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 20px;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
}

.app-details-label {
    font-family: 'RB Multima Test', sans-serif;
    font-size: 0.95em;
    font-weight: 600;
    color: #2c3e50;
}

.app-details-value {
    font-family: 'SF Pro Display', sans-serif;
    font-size: 1em;
    color: #666;
}

.app-categories {
    margin-top: 40px;
}

.app-category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.app-category-link {
    font-family: 'SF Pro Display', sans-serif;
    font-size: 1.1em;
    color: #0066cc;
    text-decoration: underline;
}

.app-category-toggle {
    padding: 6px 12px;
    background-color: transparent;
    border: 1px solid #e5e7eb;
    border-radius: 50px;
    font-family: 'SF Pro Display', sans-serif;
    font-size: 0.85em;
    cursor: pointer;
}

.app-features-list {
    margin-top: 15px;
}

.app-features-section {
    margin-bottom: 25px;
}

.app-features-section-title {
    font-family: 'SF Pro Display', sans-serif;
    font-size: 1em;
    font-weight: 600;
    color: #666;
    margin-bottom: 10px;
}

.app-features-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.app-feature-tag {
    font-family: 'SF Pro Display', sans-serif;
    font-size: 0.95em;
    color: #0066cc;
    text-decoration: underline;
}

.app-feature-tag:after {
    content: ',';
}

.app-feature-tag:last-child:after {
    content: '';
}

/* Features Section */
.features {
    padding: 80px 20px;
    background-color: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.5em;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2em;
    color: #666;
    margin-bottom: 60px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.feature-card {
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

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

.feature-card h3 {
    font-size: 1.5em;
    color: #2c3e50;
    margin-bottom: 15px;
}

.feature-card p {
    color: #666;
    line-height: 1.7;
}

/* Benefits Section */
.benefits {
    padding: 80px 20px;
}

.benefits-list {
    max-width: 800px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}

.benefit-icon {
    font-size: 2em;
    color: #0066cc;
    flex-shrink: 0;
}

.benefit-content h3 {
    font-size: 1.3em;
    color: #2c3e50;
    margin-bottom: 10px;
}

.benefit-content p {
    color: #666;
    line-height: 1.7;
}

/* Pricing Plans Section */
.pricing-plans {
    padding: 80px 20px;
    background-color: #f8f9fa;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.pricing-card {
    background-color: white;
    border-radius: 12px;
    padding: 40px 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.pricing-card h3 {
    font-size: 1.5em;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 700;
}

.pricing-price {
    font-size: 2.5em;
    font-weight: 700;
    color: #667eea;
    margin: 20px 0;
}

.pricing-card p {
    color: #666;
    margin: 10px 0;
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.2em;
    margin-bottom: 40px;
    opacity: 0.95;
}

/* Contact Section */
.contact-section {
    padding: 150px 20px;
    text-align: center;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-content p {
    font-family: 'SF Pro Display', sans-serif;
    font-size: 1.2em;
    color: #333;
    margin-bottom: 20px;
}

.contact-content p:first-child {
    font-size: 2em;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 30px;
}

.contact-content a {
    color: #0066cc;
    text-decoration: none;
    font-size: 1.2em;
    transition: color 0.3s ease;
}

.contact-content a:hover {
    color: #0052a3;
    text-decoration: underline;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 40px 20px;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    color: #ecf0f1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #0066cc;
}

.footer-text {
    margin-top: 20px;
    font-size: 0.9em;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo {
        height: 35px;
    }
    
    .nav-links {
        display: none;
    }
    
    .section-title {
        font-size: 2em;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-section h2 {
        font-size: 2em;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
    }
    
    .app-store-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .app-sidebar {
        position: static;
    }
    
    .app-gallery-main {
        grid-template-columns: 1fr;
    }
    
    .app-gallery-thumbnails {
        flex-direction: row;
        overflow-x: auto;
        gap: 15px;
    }
    
    .app-gallery-thumb {
        min-width: 200px;
        flex-shrink: 0;
    }
    
    .app-details-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .app-description h2 {
        font-size: 1.5em;
    }
}