/* ============================================
   APK Store - Professional Stylesheet
   Distinctive, modern design with dark mode
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Light Mode */
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --accent: #f093fb;
    --success: #4ade80;
    --warning: #fbbf24;
    --error: #f87171;
    
    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-elevated: #ffffff;
    
    /* Text */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --text-inverse: #ffffff;
    
    /* Borders */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
    
    /* 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;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index */
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --bg-elevated: #334155;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    
    --border-color: #334155;
    --border-light: #475569;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.5);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
}

/* ============================================
   Base Styles
   ============================================ */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============================================
   Header
   ============================================ */

.header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    transition: transform var(--transition-base);
}

.logo a:hover {
    transform: translateY(-2px);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

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

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    color: var(--text-primary);
}

.theme-toggle:hover {
    background: var(--bg-tertiary);
    transform: scale(1.05);
}

.sun-icon,
.moon-icon {
    transition: all var(--transition-base);
}

[data-theme="dark"] .sun-icon {
    display: block;
}

[data-theme="dark"] .moon-icon {
    display: none;
}

[data-theme="light"] .sun-icon {
    display: none;
}

[data-theme="light"] .moon-icon {
    display: block;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    animation: gradient-shift 6s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { filter: hue-rotate(0deg); }
    50% { filter: hue-rotate(30deg); }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    font-weight: 400;
}

/* Hero Decoration */
.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.decoration-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: blob-float 20s ease-in-out infinite;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: -250px;
    left: -100px;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    top: -150px;
    right: -100px;
    animation-delay: -5s;
}

.blob-3 {
    width: 350px;
    height: 350px;
    background: var(--accent);
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: -10s;
}

@keyframes blob-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
    75% { transform: translate(20px, 30px) scale(1.05); }
}

/* ============================================
   Search
   ============================================ */

.search-wrapper {
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.search-form {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-sm);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.search-form:focus-within {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg), 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.search-icon {
    margin-left: var(--spacing-md);
    color: var(--text-tertiary);
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: var(--spacing-md);
    font-size: 1rem;
    color: var(--text-primary);
    outline: none;
    font-family: 'Outfit', sans-serif;
}

.search-input::placeholder {
    color: var(--text-tertiary);
}

.search-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0.95rem;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   Category Filter
   ============================================ */

.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    max-width: 900px;
    margin: 0 auto;
}

.category-chip {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.category-chip:hover {
    background: var(--bg-tertiary);
    transform: translateY(-2px);
}

.category-chip.active {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary);
}

/* ============================================
   Sections
   ============================================ */

.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.section-decoration {
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0 auto;
    border-radius: var(--radius-full);
}

.section-subtitle {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.01em;
}

/* ============================================
   Featured Apps
   ============================================ */

.featured-section {
    background: var(--bg-secondary);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.featured-card {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-slow);
}

.featured-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.featured-card-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: var(--gradient-primary);
    opacity: 0.08;
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.featured-card-content {
    position: relative;
    z-index: 2;
}

.featured-app-logo {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-lg);
    object-fit: cover;
}

.featured-app-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.featured-app-dev {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.featured-app-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.meta-item svg {
    opacity: 0.7;
}

.featured-download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
}

.featured-download-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   App Cards
   ============================================ */

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.app-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-slow);
    display: flex;
    flex-direction: column;
}

.app-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.app-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.app-logo {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    object-fit: cover;
    box-shadow: var(--shadow-md);
}

.app-header-info {
    flex: 1;
}

.app-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    line-height: 1.3;
}

.app-developer {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.app-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
    line-height: 1.6;
    flex: 1;
}

.app-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

.app-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.app-category {
    background: var(--bg-secondary);
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-weight: 600;
}

.app-download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: var(--bg-secondary);
    color: var(--primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.app-download-btn:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
}

/* ============================================
   No Results
   ============================================ */

.no-results {
    text-align: center;
    padding: var(--spacing-3xl);
}

.no-results svg {
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-lg);
}

.no-results h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.no-results p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   Breadcrumb
   ============================================ */

.breadcrumb {
    background: var(--bg-secondary);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-base);
}

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

.breadcrumb span {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

.breadcrumb svg {
    color: var(--text-tertiary);
}

/* ============================================
   App Details Page
   ============================================ */

.app-details-section {
    padding: var(--spacing-2xl) 0;
}

.app-details-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-2xl);
}

.app-details-header {
    display: flex;
    gap: var(--spacing-xl);
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.app-details-logo {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    object-fit: cover;
}

.app-details-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.app-details-developer {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.app-details-badges {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.badge {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.badge-category {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(118, 75, 162, 0.15));
    color: var(--primary);
    border: 1px solid var(--primary);
}

.badge-free {
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.15), rgba(34, 197, 94, 0.15));
    color: var(--success);
    border: 1px solid var(--success);
}

/* App Stats */
.app-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.stat-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--primary);
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Download Section */
.download-section {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.download-btn-primary {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-lg);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.125rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.download-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.download-btn-primary:active {
    transform: translateY(0);
}

.download-progress {
    margin-top: var(--spacing-lg);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    animation: progress-animation 2s ease-in-out;
}

@keyframes progress-animation {
    0% { width: 0%; }
    100% { width: 100%; }
}

.progress-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Share Buttons */
.share-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.share-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.share-btn.whatsapp:hover {
    background: #25D366;
    color: white;
    border-color: #25D366;
}

.share-btn.telegram:hover {
    background: #0088cc;
    color: white;
    border-color: #0088cc;
}

/* Screenshots */
.screenshots-section {
    margin-bottom: var(--spacing-2xl);
}

.screenshots-slider {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.slider-btn {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: scale(1.1);
}

.screenshots-container {
    flex: 1;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.screenshots-track {
    display: flex;
    gap: var(--spacing-md);
    transition: transform var(--transition-slow);
}

.screenshot-item {
    flex: 0 0 280px;
}

.screenshot-item img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* Description */
.description-section {
    margin-bottom: var(--spacing-2xl);
}

.description-text {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

/* App Info */
.app-info-section {
    margin-bottom: var(--spacing-2xl);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.info-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.info-value {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

/* Sidebar */
.app-details-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.sidebar-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

/* QR Code */
.qr-code {
    width: 200px;
    height: 200px;
    margin: 0 auto var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Contact Buttons */
.contact-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
}

.contact-btn.telegram {
    background: #0088cc;
    color: white;
}

.contact-btn.whatsapp {
    background: #25D366;
    color: white;
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Additional Info */
.additional-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.additional-info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.additional-info-item svg {
    color: var(--primary);
}

/* Related Apps */
.related-apps-section {
    background: var(--bg-secondary);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-tagline {
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    transition: color var(--transition-base);
}

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

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.heart {
    color: var(--error);
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    10%, 30% { transform: scale(1.1); }
    20%, 40% { transform: scale(1); }
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .app-details-grid {
        grid-template-columns: 1fr;
    }
    
    .app-details-sidebar {
        order: -1;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }
    
    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
        padding-top: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
    }
    
    .featured-grid {
        grid-template-columns: 1fr;
    }
    
    .app-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .app-details-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .share-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-link {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .app-stats {
        grid-template-columns: 1fr;
    }
    
    .screenshot-item {
        flex: 0 0 220px;
    }
    
    .screenshot-item img {
        height: 400px;
    }
}

/* ============================================
   Utilities
   ============================================ */

.text-center { text-align: center; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* Loading Animation */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading {
    animation: spin 1s linear infinite;
}

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

[data-aos="fade-up"] {
    animation: fadeIn 0.6s ease-out;
}