/* استایل‌های عمومی */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #212529;
    color: #fff;
}

.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    right: 0;
    z-index: 100;
    padding: 48px 0 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
}

.sidebar .nav-link {
    font-weight: 500;
    color: #fff;
    padding: 0.75rem 1rem;
    border-radius: 0.25rem;
    margin: 0.125rem 0.75rem;
}

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

.sidebar .nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
}

.card {
    border: none;
    border-radius: 0.35rem;
}

.card-header {
    background-color: rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.table {
    color: #fff;
}

.table td, .table th {
    border-color: rgba(255, 255, 255, 0.1);
}

.form-control {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
}

.form-control:focus {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
    box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
}

.form-select {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
}

.form-select:focus {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
    box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
}

.btn-primary {
    background-color: #4e73df;
    border-color: #4e73df;
}

.btn-primary:hover {
    background-color: #2e59d9;
    border-color: #2653d4;
}

.btn-secondary {
    background-color: #858796;
    border-color: #858796;
}

.btn-secondary:hover {
    background-color: #717384;
    border-color: #6b6d7d;
}

.border-left-primary {
    border-left: 0.25rem solid #4e73df !important;
}

.border-left-success {
    border-left: 0.25rem solid #1cc88a !important;
}

.border-left-info {
    border-left: 0.25rem solid #36b9cc !important;
}

.border-left-warning {
    border-left: 0.25rem solid #f6c23e !important;
}

.border-left-danger {
    border-left: 0.25rem solid #e74a3b !important;
}

.chart-area {
    position: relative;
    height: 20rem;
    width: 100%;
}

@media (max-width: 768px) {
    .sidebar {
        position: static;
        height: auto;
        padding: 0;
    }
    
    main {
        margin-right: 0 !important;
    }
}