body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    height: 100vh;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.container {
    padding: 2rem;
}

.main-content {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 600px;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.download-btn {
    display: inline-block;
    background-color: #fff;
    color: #764ba2;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    background-color: #f8f9fa;
}

.download-btn i {
    margin-left: 8px;
}

/* برای نمایش بهتر در موبایل */
@media (max-width: 768px) {
    .main-content {
        padding: 2rem;
    }
    
    h1 {
        font-size: 2rem;
    }
}