* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Arial, sans-serif;
}
body {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}
.container {
    max-width: 1100px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
h1 {
    font-size: 32px;
    color: #1a73e8;
    margin-bottom: 10px;
    text-align: center;
}
.subtitle {
    text-align: center;
    font-size: 18px;
    color: #555;
    margin-bottom: 30px;
}
.section {
    margin: 35px 0;
}
h2 {
    font-size: 24px;
    color: #222;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e0e0e0;
}
h3 {
    font-size: 19px;
    margin: 18px 0 10px;
    color: #1a73e8;
}
ul {
    padding-left: 25px;
    margin: 10px 0;
}
li {
    margin: 6px 0;
}
.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    margin: 15px 0;
    list-style: none;
    padding-left: 0;
}
.feature-list li {
    background: #f1f8ff;
    padding: 10px 14px;
    border-radius: 6px;
}
.code {
    background: #f5f5f5;
    padding: 12px 15px;
    border-radius: 6px;
    font-family: monospace;
    margin: 10px 0;
}
.download-box {
    background: #e8f0fe;
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    margin: 40px 0;
}
.download-box h2 {
    border: none;
    margin-bottom: 10px;
}
.download-links {
    margin-top: 15px;
    font-size: 16px;
}
.download-links a {
    display: inline-block;
    margin: 6px 10px;
    color: #1a73e8;
    font-weight: 600;
    text-decoration: none;
}
.download-links a:hover {
    text-decoration: underline;
}
.footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    color: #666;
    font-size: 14px;
}
.btn {
    display: inline-block;
    background: #3498db;
    color: white !important;
    padding: 12px 24px;
    border-radius: 6px;
    margin: 10px 5px;
    text-decoration: none !important;
    font-weight: bold;
    transition: background 0.3s;
}
.btn:hover {
    background: #2980b9;
}
@media (max-width: 768px) {
    .container {
padding: 20px;
    }
    h1 {
font-size: 26px;
    }
}