* {
    box-sizing: border-box
}

body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.4;
    margin: 0;
    padding: 0
}

.site-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 20px;
    background: #f2f2f2
}


.main-nav {
    margin: 0 auto;
}

.main-nav a {
    margin-right: 12px;
    text-decoration: none;
    color: #333;
    padding: 6px 8px;
    border-radius: 4px
}

.img-link {
    display: inline-block;
}

.main-nav a.active {
    background: #007bff;
    color: white
}

.main-nav a:hover {
    background: #e0e0e0
}

main {
    padding: 20px
}

.header {
    margin: 0 auto;
}

.algos {
    align-items: center;
}


.large-img {
    width: 600px;
    height: 400px;
    object-fit: cover
}

.bg-table {
    max-width: 50%;
    width: 100%;
    border-collapse: collapse;
    background-size: cover
}

.bg-table td,
.bg-table th {
    border: 1px solid rgba(0, 0, 0, 0.2);
    padding: 8px;
    background: rgba(255, 255, 255, 0.8)
}


.item p {
    font-weight: 700;
}

.main-gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.item {
    max-width: 50%;
    margin: 0 auto;
}

.item.special {
    /* margin: unset; */
    max-width: unset;
}

.list {
    display: flex;
    flex-direction: column;
}