body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #fafafa;
    color: #333;
}

.sie-headert {
    background: #fff;
    border-bottom: 1px solid #eee;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.8rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1rem;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}

.main-nav a {
    text-decoration: none;
    font-size: 0.9rem;
    color: #333;
}

.main-nav a.active,
.main-nav a:hover {
    color: #0078ff;
    font-weight: 600;
}