body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background-image: url('background.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: #2c3e50;
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 20px auto;
    padding: 30px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

header {
    text-align: center;
    padding: 20px 0;
    margin-bottom: 20px;
}

.logo {
    max-width: 200px;
    height: auto;
    margin-bottom: 10px;
}

h1 {
    color: #2980b9;
    font-size: 2.5em;
    margin: 0;
}

h2, h3 {
    color: #2980b9;
    margin-top: 20px;
}

p, li {
    line-height: 1.7;
    font-size: 1.1em;
    color: #34495e;
}

ul, ol {
    margin: 15px 0;
    padding-left: 30px;
}

a {
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #2980b9;
    text-decoration: underline;
}

/* Адаптивность */
@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 20px;
    }
    .logo {
        max-width: 150px;
    }
    h1 {
        font-size: 2em;
    }
    p, li {
        font-size: 1em;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    h1 {
        font-size: 1.8em;
    }
}