body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #1b1d23 0%, #14151b 40%, #0f1014 70%, #0a0b0e 100%);
    color: #ffffff;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 50px 20px;
}

h1 {
    text-align: center;
    font-size: 42px;
    margin-bottom: 20px;
}

p {
    text-align: center;
    color: #cfcfcf;
    font-size: 18px;
    margin-bottom: 40px;
}

.catalog-block {
    background: #14151b;
    padding: 25px 20px;
    margin-bottom: 30px;
    border-radius: 12px;
    box-shadow: 0 0 20px rgba(0,0,0,0.4);
}

.catalog-block h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #4c8dff;
}

.catalog-block ol {
    padding-left: 20px;
}

.catalog-block li {
    margin-bottom: 12px;
    font-size: 18px;
}

.catalog-block a {
    color: #ffffff;
    text-decoration: none;
    transition: 0.25s ease;
}

.catalog-block a:hover {
    color: #3a7bff;
    text-decoration: underline;
}

footer {
    background: #0b0c10;
    padding: 60px 20px;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 35px;
    flex-wrap: wrap;
}

.footer-links a {
    color: #d0d0d0;
    font-size: 18px;
    text-decoration: none;
    font-weight: 500;
    transition: 0.2s ease;
}

.footer-links a:hover {
    color: #4c8dff;
}

.footer-copy {
    color: #888;
    font-size: 15px;
    opacity: 0.8;
}