.main-sidebar {
    background: linear-gradient(180deg, #1C2163 0%, #0F1741 100%);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
    border-right: none;
}

.main-sidebar .brand-link {
    border-bottom: none;
    text-align: center;
    padding: 1.25rem 1rem;
}

.custom-user-panel {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 18px;
    padding: 1rem;
    margin: 1rem;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.custom-user-panel .image img {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.custom-user-panel .info a.d-block {
    font-weight: 600;
    color: #ffffff;
}

.custom-user-panel .btn-outline-light {
    border-radius: 999px;
    font-size: 0.75rem;
    padding: 0.15rem 0.85rem;
}

.nav-sidebar .nav-header {
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: #ffb84d;
    margin: 1.5rem 1.25rem 0.5rem 1.25rem;
}

.nav-sidebar .nav-link {
    border-radius: 14px;
    margin: 0.15rem 0.75rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.05);
    transition: all 0.2s ease;
}

.nav-sidebar .nav-link:hover,
.nav-sidebar .nav-link:focus {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
    transform: translateX(4px);
}

.nav-sidebar .nav-link.active {
    background: linear-gradient(135deg, #ffb84d, #f29f05);
    color: #1c2163;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.nav-sidebar .nav-link i {
    width: 28px;
    text-align: center;
}

.sidebar-mini.sidebar-collapse .custom-user-panel {
    display: none;
}