.site-header {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 50px;
    background: #000;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    color: #fff;
    margin: 0 auto;
}

.header-left {
    display: flex;
    align-items: center;
    height: 40%;
    margin-right: 25%;
}

.header-logo {
    height: 45px;
    width: 50px;
    border-width: 1px;
    border-style: solid;
    border-color: #fff;
    border-radius: 8px;
}

.header-nav ul {
    display: flex;
    gap: 24px;
    list-style: none;
    margin: 65;
    padding: 0;
}

.header-nav a {
    text-decoration: none;
    color: #fff;
    font-weight: 500;
    font-size: 1em;
    line-height: 50px;
    transition: color 0.2s;
}

.header-nav a:hover {
    color: #0078d4;
}