:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --dark-color: #212529;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}

.hover-shadow {
    transition: all 0.3s ease;
}

.hover-shadow:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

.card {
    border-radius: 10px;
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.card-header {
    background-color: #fff;
    border-bottom: 2px solid #f0f0f0;
    font-weight: 600;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.btn {
    border-radius: 5px;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.table {
    background-color: white;
}

.table thead th {
    background-color: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
}

.badge {
    padding: 0.4em 0.8em;
    font-weight: 500;
}

/* صفحة تسجيل الدخول */
.bg-light {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.login-card {
    border-radius: 15px;
}

/* الصور */
img.card-img-top {
    transition: transform 0.3s ease;
}

img.card-img-top:hover {
    transform: scale(1.05);
}

/* Modal */
.modal-content {
    border-radius: 10px;
}

/* إضافات للجداول */
.table-responsive {
    border-radius: 8px;
}

/* الإحصائيات */
.card.text-white {
    border-radius: 10px;
    transition: all 0.3s ease;
}

.card.text-white:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.2);
}

/* تحسين النصوص العربية */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
}

/* Sticky positioning */
.sticky-top {
    position: sticky;
}

/* Form enhancements */
.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* Alert improvements */
.alert {
    border-radius: 8px;
    border: none;
}

/* Footer */
footer {
    margin-top: auto;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .sticky-top {
        position: relative !important;
        top: 0 !important;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn-sm {
        font-size: 0.8rem;
        padding: 0.25rem 0.5rem;
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Image gallery improvements */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.image-card {
    position: relative;
    overflow: hidden;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-card:hover .image-overlay {
    opacity: 1;
}