:root {
    --yb-header-height: 56px;
    --yb-sidebar-width: 250px;
}

body {
    margin: 0;
}

/* TOPBAR */
#topHeader {
    height: var(--yb-header-height);
}

/* SIDEBAR – pod topbarem, wysuwany z lewej */
#sidebar {
    position: fixed;
    top: var(--yb-header-height);
    /* pod headerem */
    left: 0;
    bottom: 0;
    width: var(--yb-sidebar-width);
    background-color: #212529;
    color: #f8f9fa;
    transform: translateX(-100%);
    transition: transform 0.2s ease-in-out;
    z-index: 1050;
    display: flex;
    flex-direction: column;
}

/* gdy otwarty */
body.sidebar-open #sidebar {
    transform: translateX(0);
}

/* overlay na tło przy otwartym sidebarze */
#sidebarOverlay {
    position: fixed;
    inset: var(--yb-header-height) 0 0 0;
    background: rgba(0, 0, 0, 0.25);
    z-index: 1040;
    display: none;
}

body.sidebar-open #sidebarOverlay {
    display: block;
}

/* content – pod topbarem, z paddingiem */
#mainContent {
    padding: 1rem;
   /* margin-top: var(--yb-header-height);*/
}

/* linki w sidebarze */
.sb-sidenav-menu .nav-link {
    color: #ced4da;
    padding: 0.6rem 1rem;
    border-radius: 0;
    border: none;
    background: transparent;
}

.sb-sidenav-menu .nav-link .sb-nav-link-icon {
    display: inline-block;
    width: 1.5rem;
    text-align: center;
    margin-right: 0.5rem;
}

.sb-sidenav-menu .nav-link:hover,
.sb-sidenav-menu .nav-link.active {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.15);
}

.sb-sidenav-footer {
    padding: 0.5rem 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}