/* تصميم احترافي حديث - Modern Professional Design */

:root {
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --bg: #f8fafc;
    --white: #ffffff;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Cairo', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    background: var(--white);
    border-left: 1px solid var(--border);
    padding: 2rem 0;
    position: fixed;
    right: 0;
    width: 280px;
    height: 100vh;
    overflow-y: auto;
}

.logo {
    padding: 0 2rem;
    margin-bottom: 3rem;
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 700;
}

.logo p {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

.nav-menu {
    list-style: none;
}

.nav-item {
    margin-bottom: 0.5rem;
    padding: 0 1rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    color: var(--text-light);
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background: var(--bg);
    color: var(--primary);
}

.nav-link.active {
    background: var(--accent);
    color: var(--white);
}

.nav-icon {
    font-size: 1.25rem;
}

/* Main Content */
.main-content {
    margin-right: 280px;
    padding: 2rem 3rem;
    max-width: 1400px;
    width: 100%;
}

/* Header */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2rem;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--text-light);
    font-size: 1rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    transition: all 0.2s;
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--bg);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Card */
.card {
    background: var(--white);
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    padding: 2rem;
    margin-bottom: 2rem;
}

.card-header {
    margin-bottom: 1.5rem;
}

.card-header h2 {
    font-size: 1.25rem;
    color: var(--primary);
    font-weight: 600;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text);
    font-weight: 500;
    font-size: 0.875rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    transition: all 0.2s;
    background: var(--white);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-hint {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-light);
    font-size: 0.75rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: var(--shadow-lg);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-success {
    background: var(--success);
    color: var(--white);
}

.btn-success:hover {
    background: #059669;
}

.btn-secondary {
    background: var(--bg);
    color: var(--text);
}

.btn-secondary:hover {
    background: #e2e8f0;
}

.btn-group {
    display: flex;
    gap: 1rem;
}

/* Preview */
.preview-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.preview-image {
    width: 100%;
    max-width: 600px;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.preview-meta {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.meta-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--white);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Notifications */
.notification {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: var(--white);
    border-radius: 0.75rem;
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--accent);
    z-index: 9999;
    animation: slideIn 0.3s ease-out;
    max-width: 400px;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notification.success {
    border-left-color: var(--success);
}

.notification.error {
    border-left-color: var(--error);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notification-icon {
    font-size: 1.5rem;
}

.notification-message {
    flex: 1;
}

.notification-title {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.notification-text {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--bg);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Table */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background: var(--bg);
}

.table th {
    text-align: right;
    padding: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

.table tr:hover {
    background: var(--bg);
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

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

.badge-secondary {
    background: #f1f5f9;
    color: #475569;
}

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

.badge-error {
    background: #fee2e2;
    color: #991b1b;
}

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

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal {
    background: var(--white);
    border-radius: 0.75rem;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10000;
    background: var(--accent);
    color: var(--white);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 0.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
}

.sidebar.mobile-open {
    display: block;
    z-index: 9999;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
}

.sidebar-overlay.show {
    display: block;
}

/* Responsive */
@media (max-width: 1024px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .sidebar {
        display: none;
        z-index: 9999;
    }
    
    .main-content {
        margin-right: 0;
        padding: 1.5rem;
        padding-top: 5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .main-content {
        padding: 1rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --primary: #f8fafc;
        --primary-light: #e2e8f0;
        --text: #f8fafc;
        --text-light: #cbd5e1;
        --bg: #0f172a;
        --white: #1e293b;
        --border: #334155;
    }
}