/* Base styles */
:root {
    --primary-color: #B45309;
    --primary-dark: #92400E;
    --primary-light: #D97706;
    --secondary-color: #78350F;
    --secondary-dark: #451A03;
    --accent-color: #F59E0B;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --background: #F8FAFC;
    --card-bg: rgba(255, 255, 255, 0.9);
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Dark theme colors */
    --dark-bg: #1a1a1a;
    --dark-card: #2d2d2d;
    --dark-text: #e5e5e5;
    --dark-text-secondary: #a3a3a3;
}

/* Dark theme */
.dark-theme {
    --background: var(--dark-bg);
    --card-bg: var(--dark-card);
    --text-primary: var(--dark-text);
    --text-secondary: var(--dark-text-secondary);
}

/* Global styles */
body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Navigation */
.nav-bar {
    padding: var(--spacing-md);
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.back-button {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    background: rgba(0, 0, 0, 0.05);
}

.back-button:hover {
    color: var(--primary-color);
    background: rgba(0, 0, 0, 0.1);
    transform: translateX(-5px);
}

.theme-toggle, .share-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    padding: 0.5rem;
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
}

.theme-toggle:hover, .share-btn:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--primary-color);
}

/* App Hero Section */
.app-hero {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" fill="none"/><path d="M50 10 L90 90 L10 90 Z" stroke="rgba(255,255,255,0.1)" stroke-width="2" fill="none"/></svg>') repeat;
    opacity: 0.1;
    animation: rotate 20s linear infinite;
}

.app-badges {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.award-badge, .feature-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: fadeInUp 1s ease-out;
}

.app-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
}

.stat-item {
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.stat-item i {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
}

.app-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.download-btn-large, .preview-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(180, 83, 9, 0.3);
    font-size: 1.1rem;
}

.download-btn-large:hover, .preview-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(180, 83, 9, 0.4);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.download-btn-large:active, .preview-btn:active {
    transform: translateY(1px);
    box-shadow: 0 2px 10px rgba(180, 83, 9, 0.3);
}

.download-btn-large i, .preview-btn i {
    font-size: 1.4rem;
    transition: transform 0.3s ease;
}

.download-btn-large:hover i, .preview-btn:hover i {
    transform: translateY(-2px);
}

.btn-subtitle {
    display: flex;
    flex-direction: column;
    font-size: 0.85rem;
    margin-left: 8px;
    line-height: 1.3;
    text-align: left;
}

.btn-subtitle::before {
    content: '📱';
    font-size: 1rem;
    margin-right: 4px;
}

.download-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    display: none;
    border-radius: 0 0 12px 12px;
    overflow: hidden;
}

.download-progress.active {
    display: block;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--success), #45a049);
    width: 0;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    animation: progress-shine 1.5s infinite;
}

@keyframes progress-shine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Screenshots Section */
.screenshot-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.screenshot-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.screenshot {
    width: 100%;
    display: block;
    transition: transform 0.3s ease;
}

.screenshot-card:hover .screenshot {
    transform: scale(1.05);
}

.screenshot-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    margin: 0;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.screenshot-card:hover .screenshot-caption {
    transform: translateY(0);
}

/* Feature Items */
.feature-item {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.feature-item:hover::before {
    transform: scaleY(1);
}

.feature-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.feature-details {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-details li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-details li::before {
    content: '→';
    color: var(--primary-color);
}

/* Handicraft Items */
.handicraft-item {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.handicraft-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.explore-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    margin-top: var(--spacing-md);
    transition: all 0.3s ease;
}

.explore-link:hover {
    gap: 1rem;
    color: var(--primary-dark);
}

/* Tech Stack */
.tech-item {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.tech-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.tech-details {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0 0;
    text-align: left;
}

.tech-details li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tech-details li::before {
    content: '•';
    color: var(--primary-color);
}

/* CTA Section */
.app-cta {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.cta-button {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.cta-button.primary {
    background: white;
    color: var(--primary-color);
}

.cta-button.secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    backdrop-filter: blur(5px);
}

.cta-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.cta-title {
    font-size: 1.125rem;
}

.cta-subtitle {
    font-size: 0.75rem;
    opacity: 0.8;
}

/* Footer */
.app-footer {
    background: var(--primary-dark);
    color: white;
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.rating-stars {
    display: flex;
    gap: 0.25rem;
    color: var(--accent-color);
    font-size: 1.25rem;
}

.report-link {
    color: white;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.report-link:hover {
    color: var(--accent-color);
}

.social-share {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    color: white;
    text-decoration: none;
    padding: 0.5rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.footer-bottom {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-color);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--primary-color);
    color: white;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

/* Animations */
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* Mobile-First Responsive Design */
@media (max-width: 768px) {
    /* Navigation */
    .nav-bar {
        padding: var(--spacing-sm);
    }

    .back-button {
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }

    .nav-actions {
        gap: 0.5rem;
    }

    .theme-toggle, .share-btn {
        padding: 0.4rem;
        font-size: 0.9rem;
    }

    /* Hero Section */
    .app-hero {
        min-height: 70vh;
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .app-badges {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }

    .award-badge, .feature-badge {
        width: 100%;
        justify-content: center;
        font-size: 0.9rem;
    }

    .app-info h1 {
        font-size: 2rem;
        margin-bottom: var(--spacing-sm);
    }

    .app-tagline {
        font-size: 1.1rem;
    }

    .app-description {
        font-size: 0.95rem;
        padding: 0 var(--spacing-sm);
    }

    /* App Stats */
    .app-stats {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: 0 var(--spacing-sm);
    }

    .stat-item {
        background: rgba(255, 255, 255, 0.1);
        padding: var(--spacing-sm);
        border-radius: var(--radius-md);
        backdrop-filter: blur(5px);
    }

    .stat-item i {
        font-size: 1.25rem;
    }

    .stat-value {
        font-size: 1.25rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    /* App Actions */
    .app-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-sm);
    }

    .download-btn-large, .preview-btn {
        width: 100%;
        justify-content: center;
        padding: 14px 28px;
        font-size: 1rem;
        border-radius: 10px;
    }

    .btn-subtitle {
        font-size: 0.8rem;
    }

    /* Screenshots */
    .app-screenshots {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .app-screenshots h2 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-lg);
    }

    .heritage-screenshot-grid {
        gap: var(--spacing-md);
    }

    .screenshot-card {
        margin: 0 var(--spacing-sm);
    }

    .screenshot-caption {
        padding: 0.5rem;
        font-size: 0.9rem;
    }

    /* Features */
    .key-features {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .key-features h2 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-lg);
    }

    .features-grid {
        gap: var(--spacing-md);
    }

    .feature-item {
        padding: var(--spacing-md);
    }

    .feature-icon {
        font-size: 1.75rem;
    }

    .feature-item h3 {
        font-size: 1.1rem;
    }

    .feature-details li {
        font-size: 0.9rem;
    }

    /* Handicrafts */
    .handicrafts-showcase {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .handicrafts-showcase h2 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-lg);
    }

    .handicrafts-grid {
        gap: var(--spacing-md);
    }

    .handicraft-item {
        padding: var(--spacing-md);
    }

    .handicraft-icon {
        font-size: 1.75rem;
    }

    .handicraft-item h3 {
        font-size: 1.1rem;
    }

    .explore-link {
        font-size: 0.9rem;
    }

    /* Tech Stack */
    .tech-stack {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .tech-stack h2 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-lg);
    }

    .tech-grid {
        gap: var(--spacing-md);
    }

    .tech-item {
        padding: var(--spacing-md);
    }

    .tech-icon {
        font-size: 2rem;
    }

    .tech-item h3 {
        font-size: 1.1rem;
    }

    .tech-details li {
        font-size: 0.9rem;
    }

    /* CTA Section */
    .app-cta {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .cta-content h2 {
        font-size: 1.5rem;
    }

    .cta-content p {
        font-size: 0.95rem;
        padding: 0 var(--spacing-sm);
    }

    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-sm);
    }

    .cta-button {
        width: 100%;
        justify-content: center;
        padding: 0.8rem 1.5rem;
    }

    .cta-title {
        font-size: 1rem;
    }

    .cta-subtitle {
        font-size: 0.7rem;
    }

    /* Footer */
    .app-footer {
        padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    }

    .footer-content {
        gap: var(--spacing-lg);
    }

    .footer-section h3 {
        font-size: 1.1rem;
    }

    .footer-section p {
        font-size: 0.9rem;
    }

    .rating-stars {
        justify-content: center;
        font-size: 1.1rem;
    }

    .report-link {
        font-size: 0.9rem;
    }

    .social-share {
        justify-content: center;
    }

    .social-link {
        padding: 0.4rem;
        font-size: 0.9rem;
    }

    .footer-bottom {
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-md);
    }

    .footer-bottom p {
        font-size: 0.9rem;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
        margin-top: var(--spacing-sm);
    }

    .footer-links a {
        font-size: 0.9rem;
    }

    /* Back to Top */
    .back-to-top {
        width: 2.5rem;
        height: 2.5rem;
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        font-size: 0.9rem;
    }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
    .app-hero {
        min-height: 60vh;
    }

    .app-info h1 {
        font-size: 1.75rem;
    }

    .app-tagline {
        font-size: 1rem;
    }

    .app-description {
        font-size: 0.9rem;
    }

    .stat-item {
        padding: 0.75rem;
    }

    .stat-value {
        font-size: 1.1rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    .download-btn-large, .preview-btn {
        padding: 0.7rem 1.25rem;
        font-size: 0.9rem;
    }

    .btn-subtitle {
        font-size: 0.65rem;
    }

    .feature-item, .handicraft-item, .tech-item {
        padding: var(--spacing-sm);
    }

    .feature-icon, .handicraft-icon {
        font-size: 1.5rem;
    }

    .feature-item h3, .handicraft-item h3, .tech-item h3 {
        font-size: 1rem;
    }

    .feature-details li, .tech-details li {
        font-size: 0.85rem;
    }

    .cta-content h2 {
        font-size: 1.25rem;
    }

    .cta-content p {
        font-size: 0.9rem;
    }

    .cta-button {
        padding: 0.7rem 1.25rem;
    }

    .cta-title {
        font-size: 0.95rem;
    }

    .cta-subtitle {
        font-size: 0.65rem;
    }
}

/* Landscape Mode */
@media (max-height: 500px) and (orientation: landscape) {
    .app-hero {
        min-height: 50vh;
    }

    .app-badges {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .app-stats {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .app-actions {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .download-btn-large, .preview-btn {
        width: auto;
    }
}

/* Touch Device Optimizations */
@media (hover: none) {
    .back-button:active,
    .theme-toggle:active,
    .share-btn:active,
    .download-btn-large:active,
    .preview-btn:active,
    .feature-item:active,
    .handicraft-item:active,
    .tech-item:active,
    .cta-button:active,
    .social-link:active,
    .back-to-top:active {
        transform: scale(0.98);
    }

    .screenshot-card:active .screenshot {
        transform: scale(1.02);
    }

    .screenshot-card:active .screenshot-caption {
        transform: translateY(0);
    }

    .download-btn-large:active, .preview-btn:active {
        transform: scale(0.98);
    }

    .download-btn-large i:active, .preview-btn i:active {
        transform: scale(0.95);
    }
}

/* High DPI Screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .app-hero::before {
        background-size: 40px 40px;
    }
}

/* Print Styles */
@media print {
    .nav-bar,
    .app-actions,
    .back-to-top {
        display: none;
    }

    .app-hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }

    .app-hero::before {
        display: none;
    }

    .screenshot-card:hover .screenshot-caption {
        transform: translateY(0);
    }
}