.header {
    position: fixed;
    z-index: 999;
    width: 100%;
    height: 50px;
    margin: 0;
    top: 0;
    /*background-color: rgba(211, 211, 211, 0.96);
    box-shadow: 0 0 1px black;*/
    background-color: rgba(255, 255, 255, 0.96);
    /*box-shadow: 0 -13px 20px black;*/
    box-shadow: 0 1px 6px 0 rgb(32 33 36 / 28%);
    /*box-shadow: 0 2px 10px 0 rgb(0 0 0 / 10%);*/
    border-bottom: 1px solid #d9d9d9;
}
.header-logo {
    position: absolute;
    width: 42px;
    top: 50%;
    transform: translateY(-50%);
    left: 20px;
}
.header-sitename {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 67px;
}
.header-url {
    color: #303030;
    transition: 0.2s ease 0s;
}
.header-url:hover {
    color: slategray;
    transition: 0.2s ease 0s;
}
.form-check.form-switch {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 15px;
}

@media only screen and (max-width: 400px) {
    .header-logo {
        left: 5px;
    }
    .header-sitename {
        left: 50px;
    }
    .form-check.form-switch {
        right: 8px;
    }
}

/* Dark Mode */
[data-theme="dark"] .header {
    background-color: #212121 !important;
    border-bottom: 1px solid #4b4b4b !important;
}
[data-theme="dark"] .header-url {
    color: #ccc !important;
}
[data-theme="dark"] .header-url:hover {
    color: #eee !important;
}