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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4px 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.main-logo {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    display: block;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

header .tagline {
    font-size: 1.2em;
    opacity: 0.9;
    margin-bottom: 10px;
}

header .version {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9em;
    margin-top: 10px;
}

nav {
    background: white;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

nav a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover {
    color: #764ba2;
}

main {
    background: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

section {
    margin-bottom: 40px;
}

section h2 {
    color: #667eea;
    font-size: 2em;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e0e0e0;
}

section h3 {
    color: #764ba2;
    font-size: 1.5em;
    margin-top: 25px;
    margin-bottom: 15px;
}

section p {
    margin-bottom: 15px;
    line-height: 1.8;
}

code {
    background: #f4f4f4;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 20px;
    border-radius: 5px;
    overflow-x: auto;
    margin: 15px 0;
}

pre code {
    background: none;
    padding: 0;
    color: inherit;
}

ul, ol {
    margin-left: 30px;
    margin-bottom: 15px;
}

li {
    margin-bottom: 8px;
}

.feature-box {
    background: #f8f9fa;
    border-left: 4px solid #667eea;
    padding: 20px;
    margin: 20px 0;
    border-radius: 4px;
}

.example-box {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    padding: 20px;
    margin: 20px 0;
}

.example-box pre {
    margin: 15px 0;
}

.example-box p {
    margin-top: 15px;
    font-style: italic;
    color: #666;
    font-size: 0.95em;
}

.upcoming-features {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    padding: 25px;
    margin: 30px 0;
}

.upcoming-features h3 {
    color: #856404;
    margin-top: 0;
}

.upcoming-features ul {
    margin-top: 15px;
}

footer {
    text-align: center;
    padding: 30px 20px;
    color: #666;
    background: white;
    border-top: 1px solid #e0e0e0;
}

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

footer a:hover {
    text-decoration: underline;
}

.download-section {
    background: #e8f4f8;
    padding: 25px;
    border-radius: 8px;
    margin: 20px 0;
}

.download-section h3 {
    margin-top: 0;
    color: #2c3e50;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    transition: background 0.3s;
    margin: 10px 10px 10px 0;
}

.btn:hover {
    background: #764ba2;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }
    
    nav ul {
        flex-direction: column;
        gap: 10px;
    }
    
    main {
        padding: 20px;
    }
    
    section h2 {
        font-size: 1.5em;
    }
}