.alert-error {
    --bs-alert-color: var(--bs-danger-text-emphasis);
    --bs-alert-bg: var(--bs-danger-bg-subtle);
    --bs-alert-border-color: var(--bs-danger-border-subtle);
    --bs-alert-link-color: var(--bs-danger-text-emphasis);
}

/* Sidebar styling */
.sidebar-panel {
    background-color: #2c3e50;
    border-right: 1px solid #34495e;
}

.sidebar-panel .nav-link {
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}

.sidebar-panel .nav-link:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar-panel .nav-link.active {
    background-color: #3498db;
    color: #ffffff;
}

.header-navbar {
    background-color: #34495e;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-navbar .navbar-brand {
    color: #ffffff !important;
    font-weight: bold;
    font-size: 1.3rem;
}

.header-navbar .nav-link {
    color: rgba(255, 255, 255, 0.7) !important;
}

.header-navbar .nav-link:hover {
    color: #ffffff !important;
}