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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
    overflow: hidden;
    padding: 0 20px;
}

/* Header */
header {
    background: #667eea;
    color: #fff;
    padding: 20px 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    text-decoration: none;
    color: #fff;
}

.logo img {
    height: 40px;
    margin-right: 10px;
    border-radius: 5px;
}

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

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

.nav-links a:hover {
    color: #e8491d;
}

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

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: bold;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Main Content */
main {
    padding: 40px 0;
}

.content-section {
    background: #fff;
    padding: 40px;
    margin-bottom: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.content-section h1 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.content-section h2 {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 20px;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

.content-section h3 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 15px;
    margin-top: 25px;
}

.content-section p {
    margin-bottom: 15px;
    text-align: justify;
    line-height: 1.8;
}

/* App Info Table */
.app-info table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
}

.app-info th,
.app-info td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.app-info th {
    background: #667eea;
    color: #fff;
    font-weight: bold;
    width: 30%;
}

.app-info tr:hover {
    background: #f1f1f1;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.feature-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
}

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

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #667eea;
}

/* Screenshots */
.screenshots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.screenshot img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

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

/* Posts Grid */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.post-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.post-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.post-content {
    padding: 25px;
}

.post-content h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #333;
}

.post-content p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.read-more {
    color: #667eea;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #e8491d;
}

/* Download Button */
.download-btn {
    display: inline-block;
    background: linear-gradient(135deg, #e8491d 0%, #c0392b 100%);
    color: #fff;
    padding: 18px 35px;
    text-decoration: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(232, 73, 29, 0.3);
}

.download-btn:hover {
    background: linear-gradient(135deg, #c0392b 0%, #e8491d 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(232, 73, 29, 0.4);
}

/* Image Optimization for posts */
.post-image {
    max-width: 40%;
    max-height: 300px;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    margin: 20px auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Footer */
footer {
    background: #333;
    color: #fff;
    padding: 50px 0 20px;
    margin-top: 50px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #667eea;
}

.footer-section p {
    color: #ccc;
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #555;
    color: #999;
}

.footer-bottom a {
    color: #667eea;
    text-decoration: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .content-section {
        padding: 25px;
    }
    
    .content-section h1 {
        font-size: 2rem;
    }
    
    .content-section h2 {
        font-size: 1.5rem;
    }
    
    .features-grid,
    .posts-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshots {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .post-image {
        max-width: 60%;
        max-height: 250px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 50px 0;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .content-section {
        padding: 20px;
    }
    
    .screenshots {
        grid-template-columns: 1fr;
    }
    
    .post-image {
        max-width: 70%;
        max-height: 200px;
    }
}

/* Lazy Loading */
img[loading="lazy"] {
    transition: opacity 0.3s;
}

/* Performance Optimizations */
img {
    max-width: 100%;
    height: auto;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus States for Accessibility */
a:focus,
button:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}