/* استایل‌های سایدبار */
    .sidebar-card {
        background: white;
        border-radius: 12px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        margin-bottom: 1.5rem;
        overflow: hidden;
    }
    
    .card-header {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        padding: 1rem;
        font-weight: bold;
    }
    
    .card-body {
        padding: 1.25rem;
    }
    
    .card-title {
        margin: 0;
        font-size: 1.1rem;
    }
    
    .form-label {
        display: block;
        margin-bottom: 0.5rem;
        font-weight: bold;
        color: #333;
    }
    
    .input-group {
        display: flex;
        gap: 0.5rem;
    }
    
    .form-control {
        flex: 1;
        padding: 0.5rem;
        border: 1px solid #ddd;
        border-radius: 8px;
        font-size: 0.9rem;
    }
    
    .form-check {
        margin-bottom: 0.5rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
    
    .form-check-input {
        width: 18px;
        height: 18px;
        cursor: pointer;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        border: none;
        border-radius: 8px;
        cursor: pointer;
        font-size: 0.9rem;
        transition: all 0.3s ease;
    }
    
    .btn-primary {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
    }
    
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    }
    
    .btn-outline-secondary {
        background: transparent;
        border: 1px solid #6c757d;
        color: #6c757d;
    }
    
    .btn-outline-secondary:hover {
        background: #6c757d;
        color: white;
    }
    
    .btn-outline-primary {
        background: transparent;
        border: 1px solid #667eea;
        color: #667eea;
    }
    
    .btn-outline-primary:hover {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
    }
    
    .d-grid {
        display: grid;
    }
    
    .w-100 {
        width: 100%;
    }
    
    /* لیست گروه */
    .list-group {
        list-style: none;
    }
    
    .list-group-item {
        padding: 0.75rem 1rem;
        border-bottom: 1px solid #eee;
        transition: background 0.2s ease;
    }
    
    .list-group-item:hover {
        background: #f8f9fa;
    }
    
    .list-group-flush .list-group-item:last-child {
        border-bottom: none;
    }
    
    .d-flex {
        display: flex;
    }
    
    .justify-content-between {
        justify-content: space-between;
    }
    
    .align-items-center {
        align-items: center;
    }
    
    .fw-bold {
        font-weight: bold;
    }
    
    .text-decoration-none {
        text-decoration: none;
    }
    
    .text-primary {
        color: #667eea;
    }
    
    .badge {
        padding: 0.25rem 0.5rem;
        border-radius: 12px;
        font-size: 0.7rem;
        font-weight: bold;
    }
    
    .bg-secondary {
        background: #6c757d;
        color: white;
    }
    
    .bg-success {
        background: #28a745;
        color: white;
    }
    
    .bg-info {
        background: #17a2b8;
        color: white;
    }
    
    .bg-warning {
        background: #ffc107;
        color: #333;
    }
    
    .bg-danger {
        background: #dc3545;
        color: white;
    }
    
    .bg-light {
        background: #f8f9fa;
        color: #333;
    }
    
    .text-white {
        color: white;
    }
    
    .text-muted {
        color: #6c757d;
    }
    
    .text-success {
        color: #28a745;
    }
    
    .small {
        font-size: 0.85rem;
    }
    
    .mt-2 { margin-top: 0.5rem; }
    .mt-3 { margin-top: 1rem; }
    .mt-4 { margin-top: 1.5rem; }
    .mb-0 { margin-bottom: 0; }
    .mb-2 { margin-bottom: 0.5rem; }
    .mb-3 { margin-bottom: 1rem; }
    .mb-4 { margin-bottom: 1.5rem; }
    .me-2 { margin-left: 0.5rem; }
    .me-3 { margin-left: 1rem; }
    .ms-2 { margin-right: 0.5rem; }
    .p-0 { padding: 0; }
    .py-5 { padding: 3rem 0; }
    
    .row {
        display: flex;
        flex-wrap: wrap;
        margin: -0.5rem;
    }
    
    .col-md-3, .col-md-9, .col-md-6, .col-lg-4 {
        padding: 0.5rem;
        box-sizing: border-box;
    }
    
    .col-md-3 { width: 25%; }
    .col-md-9 { width: 75%; }
    .col-md-6 { width: 50%; }
    .col-lg-4 { width: 33.333%; }
    
    /* کارت‌های ویژگی */
    .feature-card {
        background: white;
        border-radius: 12px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        transition: transform 0.3s ease;
        height: 100%;
    }
    
    .feature-card:hover {
        transform: translateY(-5px);
    }
    
    .feature-card .card-body {
        text-align: center;
    }
    
    .feature-icon {
        font-size: 3rem;
        margin-bottom: 1rem;
    }
    
    /* کارت آگهی */
    .ad-card {
        background: white;
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        transition: all 0.3s ease;
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    
    .ad-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    }
    
    .card-img-top {
        width: 100%;
        height: 200px;
        object-fit: cover;
    }
    
    .img-placeholder {
        height: 200px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 3rem;
    }
    
    .card-footer {
        padding: 1rem;
        background: white;
        border-top: 1px solid #eee;
        margin-top: auto;
    }
    
    .bg-transparent {
        background: transparent;
    }
    
    .border-top-0 {
        border-top: none;
    }
    
    .pt-0 {
        padding-top: 0;
    }
    
    .h-100 {
        height: 100%;
    }
    
    .shadow-sm {
        box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    }
    
    /* صفحه‌بندی */
    .pagination {
        display: flex;
        justify-content: center;
        gap: 0.5rem;
        list-style: none;
        margin-top: 2rem;
    }
    
    .page-link {
        padding: 0.5rem 0.75rem;
        border: 1px solid #ddd;
        border-radius: 8px;
        text-decoration: none;
        color: #667eea;
        transition: all 0.3s ease;
    }
    
    .page-link:hover {
        background: #667eea;
        color: white;
        border-color: #667eea;
    }
    
    .page-item.active .page-link {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        border-color: #667eea;
    }
    
    .page-item.disabled .page-link {
        color: #6c757d;
        pointer-events: none;
        cursor: not-allowed;
    }
    
    /* پیام خالی */
    .alert-info {
        background: #d1ecf1;
        color: #0c5460;
        border: 1px solid #bee5eb;
        border-radius: 12px;
    }
    
    /* ریسپانسیو */
    @media (max-width: 768px) {
        .col-md-3, .col-md-9 {
            width: 100%;
        }
        
        .col-md-6 {
            width: 100%;
        }
        
        .col-lg-4 {
            width: 100%;
        }
        
        .row {
            flex-direction: column;
        }
    }
    
    .hover-shadow {
        transition: all 0.3s ease;
    }
    
    .text-center {
        text-align: center;
    }
    
    .gap-2 {
        gap: 0.5rem;
    }
    
    select.form-control {
        background: white;
        cursor: pointer;
    }

.hover-shadow {
    transition: all 0.3s ease;
}
.hover-shadow:hover {
    transform: translateY(-5px);
    box-shadow: 0 .5rem 1rem rgba(0,0,0,.15)!important;
}
.list-group-item {
    transition: background-color 0.2s ease;
}
.list-group-item:hover {
    background-color: #f8f9fa;
}
.feature-card {
    transition: transform 0.3s ease;
}
.feature-card:hover {
    transform: translateY(-5px);
}