* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    direction: rtl;
    text-align: right;
}

/* Navigation */
nav {
    background-color: rgba(0, 0, 0, 0.8);
    padding: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

nav li {
    margin: 0 1rem;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: block;
}

nav a:hover {
    background-color: #667eea;
    transform: translateY(-2px);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    padding: 2rem;
    margin-bottom: 2rem;
}

.card-title {
    color: #667eea;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    border-bottom: 3px solid #667eea;
    padding-bottom: 0.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: 600;
    font-size: 0.95rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="password"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    direction: rtl;
    transition: all 0.3s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.2);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    display: inline-block;
}

.btn-primary {
    background-color: #667eea;
    color: white;
}

.btn-primary:hover {
    background-color: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-success {
    background-color: #10b981;
    color: white;
}

.btn-success:hover {
    background-color: #059669;
    transform: translateY(-2px);
}

.btn-danger {
    background-color: #ef4444;
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-secondary {
    background-color: #6b7280;
    color: white;
}

.btn-secondary:hover {
    background-color: #4b5563;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.table thead {
    background-color: #f3f4f6;
    border-bottom: 2px solid #667eea;
}

.table th,
.table td {
    padding: 1rem;
    text-align: right;
    border-bottom: 1px solid #e5e7eb;
}

.table tbody tr:hover {
    background-color: #f9fafb;
}

.table tbody tr:nth-child(even) {
    background-color: #f9fafb;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border-left: 4px solid #10b981;
}

.alert-error {
    background-color: #fee2e2;
    color: #7f1d1d;
    border-left: 4px solid #ef4444;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border-left: 4px solid #f59e0b;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border-left: 4px solid #3b82f6;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.stat-card .number {
    font-size: 2.5rem;
    font-weight: bold;
}

/* Loading Spinner */
.spinner {
    border: 4px solid #f3f4f6;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* File Upload */
.file-upload {
    position: relative;
    display: inline-block;
    cursor: pointer;
    width: 100%;
}

.file-upload input[type="file"] {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
    z-index: -1;
}

.file-upload-label {
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed #667eea;
    border-radius: 5px;
    padding: 2rem;
    background-color: #f9fafb;
    transition: all 0.3s ease;
    cursor: pointer;
}

.file-upload-label:hover {
    background-color: #ede9fe;
    border-color: #764ba2;
}

.file-upload-label.dragging {
    background-color: #ede9fe;
    border-color: #764ba2;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .card {
        padding: 1rem;
    }
    
    nav ul {
        flex-direction: column;
    }
    
    nav li {
        margin: 0.5rem 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .table {
        font-size: 0.9rem;
    }
    
    .table th,
    .table td {
        padding: 0.5rem;
    }
}

/* Hidden class */
.hidden {
    display: none !important;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-error {
    background-color: #fee2e2;
    color: #7f1d1d;
}

.badge-info {
    background-color: #dbeafe;
    color: #1e40af;
}