/**
 * نظام ERP متعدد الشركات - ملف الأنماط الرئيسي
 * Multi-Company ERP System - Main Stylesheet
 */

/* ========================================
   CSS Variables & Theming
   ======================================== */
:root {
    /* Primary Colors - Orange Theme */
    --primary: #FF6A00;
    --primary-light: #FF8533;
    --primary-dark: #CC5500;
    --primary-rgb: 255, 106, 0;
    
    /* Secondary Colors - Black Theme */
    --secondary: #1a1a2e;
    --secondary-light: #2d2d44;
    --secondary-dark: #0f0f1a;
    
    /* Light Theme Colors */
    --bg-light: #f8fafc;
    --bg-card-light: #ffffff;
    --text-light: #1e293b;
    --text-muted-light: #64748b;
    --border-light: #e2e8f0;
    
    /* Dark Theme Colors */
    --bg-dark: #0f0f1a;
    --bg-card-dark: #1a1a2e;
    --text-dark: #f1f5f9;
    --text-muted-dark: #94a3b8;
    --border-dark: #2d2d44;
    
    /* Status Colors */
    --success: #22c55e;
    --success-light: #86efac;
    --warning: #f59e0b;
    --warning-light: #fcd34d;
    --danger: #ef4444;
    --danger-light: #fca5a5;
    --info: #3b82f6;
    --info-light: #93c5fd;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Sidebar */
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;
    
    /* Header */
    --header-height: 70px;
}

/* Overlay for mobile sidebar */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    backdrop-filter: blur(2px);
}

.sidebar-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Dark Theme (Default) */
[data-theme="dark"], :root {
    --bg: var(--bg-dark);
    --bg-card: var(--bg-card-dark);
    --text: var(--text-dark);
    --text-muted: var(--text-muted-dark);
    --border: var(--border-dark);
}

/* Light Theme */
[data-theme="light"] {
    --bg: var(--bg-light);
    --bg-card: var(--bg-card-light);
    --text: var(--text-light);
    --text-muted: var(--text-muted-light);
    --border: var(--border-light);
}

/* ========================================
   Base Styles
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Cairo', 'Segoe UI', Tahoma, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    direction: rtl;
    text-align: right;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-light);
}

img {
    max-width: 100%;
    height: auto;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--text-muted) !important; }

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

.sidebar {
    width: var(--sidebar-width);
    background: var(--secondary);
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: width var(--transition-normal);
    overflow: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 80px;
}

.sidebar-logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sidebar-logo i {
    font-size: 1.5rem;
    color: white;
}

.sidebar-brand {
    color: white;
    font-size: 1.125rem;
    font-weight: 700;
    white-space: nowrap;
    opacity: 1;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .sidebar-brand {
    opacity: 0;
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
    overflow-x: hidden;
}

.nav-section {
    margin-bottom: var(--spacing-lg);
}

.nav-section-title {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: var(--spacing-sm) var(--spacing-md);
    white-space: nowrap;
}

.sidebar.collapsed .nav-section-title {
    display: none;
}

.nav-item {
    margin-bottom: var(--spacing-xs);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.nav-link.active {
    color: white;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.4);
}

.nav-link i {
    width: 24px;
    font-size: 1.125rem;
    text-align: center;
    flex-shrink: 0;
}

.nav-link span {
    flex: 1;
}

.sidebar.collapsed .nav-link span {
    display: none;
}

.nav-badge {
    background: var(--danger);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    min-width: 20px;
    text-align: center;
}

.sidebar.collapsed .nav-badge {
    display: none;
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-toggle {
    width: 100%;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    transition: all var(--transition-fast);
}

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

.sidebar.collapsed .sidebar-toggle span {
    display: none;
}

/* ========================================
   Layout - Main Content
   ======================================== */
.main-content {
    flex: 1;
    margin-right: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-right var(--transition-normal);
}

.sidebar.collapsed + .main-content {
    margin-right: var(--sidebar-collapsed-width);
}

/* Header */
.header {
    height: var(--header-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-title h1 {
    font-size: 1.5rem;
    margin: 0;
}

.header-title p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.menu-toggle-btn {
    display: none; /* Hidden on desktop */
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: transparent;
    border: none;
    color: var(--text);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-left: var(--spacing-md);
    transition: all var(--transition-fast);
}

.menu-toggle-btn:hover {
    background: var(--bg);
    color: var(--primary);
}

.header-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-fast);
}

.header-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.header-btn .badge {
    position: absolute;
    top: -4px;
    left: -4px;
    width: 18px;
    height: 18px;
    background: var(--danger);
    color: white;
    font-size: 0.7rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-menu:hover {
    background: var(--border);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.user-info {
    text-align: right;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* User Dropdown Menu */
.user-menu {
    position: relative;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: var(--spacing-sm);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--text);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg);
    color: var(--primary);
}

.dropdown-item i {
    width: 20px;
    text-align: center;
}

/* Page Content */
.page-content {
    padding: var(--spacing-xl);
}

/* ========================================
   Cards
   ======================================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border);
    background: var(--bg);
}

/* Stat Cards */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.stat-icon.success { background: linear-gradient(135deg, var(--success), #16a34a); }
.stat-icon.warning { background: linear-gradient(135deg, var(--warning), #d97706); }
.stat-icon.info { background: linear-gradient(135deg, var(--info), #2563eb); }
.stat-icon.danger { background: linear-gradient(135deg, var(--danger), #dc2626); }

.stat-content {
    flex: 1;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-change {
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.4);
}

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.8rem;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
}

/* ========================================
   Forms
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 12px center;
    padding-left: 40px;
}

/* ========================================
   Tables
   ======================================== */
.table-responsive {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: right;
    border-bottom: 1px solid var(--border);
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tbody tr {
    transition: background var(--transition-fast);
}

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

/* ========================================
   Badges & Tags
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-primary { background: rgba(var(--primary-rgb), 0.15); color: var(--primary); }
.badge-success { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge-info { background: rgba(59, 130, 246, 0.15); color: var(--info); }

/* ========================================
   Grid System
   ======================================== */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: calc(-1 * var(--spacing-md));
}

.col {
    flex: 1;
    padding: var(--spacing-md);
}

.col-12 { flex: 0 0 100%; max-width: 100%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-4 { flex: 0 0 33.333%; max-width: 33.333%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }

/* ========================================
   Utilities
   ======================================== */
.d-flex { display: flex; }
.d-none { display: none; }
.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }

.text-center { text-align: center; }
.text-start { text-align: right; }
.text-end { text-align: left; }

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1200px) {
    .col-3 { flex: 0 0 50%; max-width: 50%; }
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(100%);
        box-shadow: -5px 0 25px rgba(0,0,0,0.1);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-right: 0;
    }

    .menu-toggle-btn {
        display: flex;
    }
    
    .col-4, .col-3 { flex: 0 0 50%; max-width: 50%; }
}

@media (max-width: 768px) {
    .col-6, .col-4, .col-3 { flex: 0 0 100%; max-width: 100%; }
    
    .header {
        padding: 0 var(--spacing-md);
        height: 60px; /* Smaller header on mobile */
    }

    .sidebar {
        width: 260px; /* Slightly smaller sidebar on mobile */
    }

    .sidebar-toggle {
        display: none; /* Hide collapse button on mobile */
    }
    
    .page-content {
        padding: var(--spacing-md);
    }
    
    .user-info {
        display: none;
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-fade { animation: fadeIn 0.3s ease; }
.animate-slide { animation: slideUp 0.4s ease; }
.animate-pulse { animation: pulse 2s infinite; }

/* ========================================
   Scrollbar
   ======================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}