/* Admin Sidebar Styles */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
    background-color: #212529; /* Dark background */
    transition: all 0.3s ease;
}

.sidebar-sticky {
    position: relative;
    top: 0;
    height: 100vh;
    padding-top: 0;
    overflow-x: hidden;
    overflow-y: auto;
}

/* Brand */
.sidebar-brand {
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    color: #fff;
    text-decoration: none;
    background-color: rgba(0,0,0,0.2);
    margin-bottom: 1rem;
}

.sidebar-brand:hover {
    color: #e0e0e0;
}

/* Nav Items */
.sidebar .nav-link {
    font-weight: 500;
    color: rgba(255, 255, 255, .7);
    padding: 0.8rem 1.5rem;
    display: flex;
    align-items: center;
    transition: all 0.2s ease-in-out;
    border-left: 3px solid transparent;
}

.sidebar .nav-link:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, .05);
    border-left-color: rgba(255, 255, 255, .5);
}

.sidebar .nav-link.active {
    color: #fff;
    background-color: rgba(13, 110, 253, 0.15); /* Primary with opacity */
    border-left-color: #0d6efd; /* Primary color */
}

.sidebar .nav-link i {
    margin-right: 12px;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

/* Section Headings */
.sidebar-heading {
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, .4);
    padding: 1.5rem 1.5rem 0.5rem;
    font-weight: 700;
}

/* Responsive */
@media (max-width: 767.98px) {
    .sidebar {
        top: 5rem;
    }
}