/* Sidebar initial state: offscreen */
#side-menu {
    position: fixed;
    top: 0;
    right: -250px;          /* completely hidden */
    width: 250px;
    height: 100vh;
    background: #181818;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: right 0.3s ease;  /* smooth slide */
}

/* Sidebar open */
#side-menu.open {
    right: 0;
}

/* Header / Footer */
.sidebar-header, .sidebar-footer {
    flex-shrink: 0;
    padding: 10px;
    border-color: #333;
}

.sidebar-header { border-bottom: 1px solid #333; }
.sidebar-footer { border-top: 1px solid #333; }

/* Scrollable nav */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 10px 0;
}

/* Scrollbar styling */
.sidebar-nav::-webkit-scrollbar {
    width: 6px;
}
.sidebar-nav::-webkit-scrollbar-thumb {
    background-color: #555;
    border-radius: 3px;
}
.sidebar-nav::-webkit-scrollbar-track {
    background-color: #222;
}