/* ============================================
   AESA Admin - World Class UI
   Modern, Clean, Professional Design
   ============================================ */

:root {
    /* Primary Colors - American Express Blue */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #006FCF;
    --primary-600: #0058a6;
    --primary-700: #00175A;
    --primary-800: #001440;
    --primary-900: #000d2b;
    
    /* Neutral Colors */
    --gray-25: #fcfcfd;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --gray-950: #030712;
    
    /* Semantic Colors */
    --success-50: #ecfdf5;
    --success-100: #d1fae5;
    --success-500: #10b981;
    --success-600: #059669;
    --success-700: #047857;
    
    --warning-50: #fffbeb;
    --warning-100: #fef3c7;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    
    --error-50: #fef2f2;
    --error-100: #fee2e2;
    --error-500: #ef4444;
    --error-600: #dc2626;
    
    --info-50: #eff6ff;
    --info-100: #dbeafe;
    --info-500: #3b82f6;
    --info-600: #2563eb;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --sidebar-width: 280px;
    --header-height: 72px;
}

/* ============================================
   BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--gray-50);
    color: var(--gray-900);
    line-height: 1.6;
}

body[dir="rtl"] {
    font-family: 'Tajawal', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--gray-900);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header h1,
.page-header h2 {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
}

.page-header h1 i,
.page-header h2 i {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    color: white;
    border-radius: var(--radius-lg);
    font-size: 1.125rem;
}

.page-header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-100);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-xs);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-50);
    border-color: var(--gray-300);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-500), var(--success-600));
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--success-600), var(--success-700));
}

.btn-danger {
    background: linear-gradient(135deg, var(--error-500), var(--error-600));
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--gray-600);
}

.btn-ghost:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.btn-lg {
    padding: 14px 24px;
    font-size: 1rem;
    border-radius: var(--radius-xl);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8125rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-100);
    background: var(--gray-25);
}

.card-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: 0;
}

.card-header h3 i {
    color: var(--primary-500);
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-100);
    background: var(--gray-25);
}

/* ============================================
   STATS CARDS
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-500), var(--primary-400));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--gray-200);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-icon.blue {
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    color: var(--primary-600);
}

.stat-icon.green {
    background: linear-gradient(135deg, var(--success-50), var(--success-100));
    color: var(--success-600);
}

.stat-icon.orange {
    background: linear-gradient(135deg, var(--warning-50), var(--warning-100));
    color: var(--warning-600);
}

.stat-icon.purple {
    background: linear-gradient(135deg, #f3e8ff, #e9d5ff);
    color: #9333ea;
}

.stat-icon.red {
    background: linear-gradient(135deg, var(--error-50), var(--error-100));
    color: var(--error-600);
}

.stat-content {
    flex: 1;
    min-width: 0;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
}

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 8px;
    padding: 4px 8px;
    border-radius: var(--radius-full);
}

.stat-change.positive {
    background: var(--success-50);
    color: var(--success-600);
}

.stat-change.negative {
    background: var(--error-50);
    color: var(--error-600);
}

/* ============================================
   TABLES
   ============================================ */
.table-container {
    overflow-x: auto;
    margin: 0 -1px;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table th {
    background: var(--gray-50);
    padding: 14px 20px;
    text-align: left;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    border-bottom: 1px solid var(--gray-200);
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-table th:first-child {
    padding-left: 24px;
}

.data-table th:last-child {
    padding-right: 24px;
}

.data-table td {
    padding: 18px 20px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
    font-size: 0.875rem;
    vertical-align: middle;
    transition: background var(--transition-fast);
}

.data-table td:first-child {
    padding-left: 24px;
}

.data-table td:last-child {
    padding-right: 24px;
}

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

.data-table tbody tr:hover {
    background: var(--gray-50);
}

.data-table tbody tr:hover td {
    color: var(--gray-900);
}

/* Employee/User Info Cell */
.user-cell {
    display: flex;
    align-items: center;
    gap: 14px;
}

.user-avatar {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9375rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.user-info {
    min-width: 0;
}

.user-name {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-email {
    font-size: 0.8125rem;
    color: var(--gray-500);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-success {
    background: var(--success-50);
    color: var(--success-700);
}

.badge-warning {
    background: var(--warning-50);
    color: var(--warning-600);
}

.badge-error {
    background: var(--error-50);
    color: var(--error-600);
}

.badge-info {
    background: var(--info-50);
    color: var(--info-600);
}

.badge-gray {
    background: var(--gray-100);
    color: var(--gray-600);
}

.badge i {
    font-size: 0.625rem;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-label .required {
    color: var(--error-500);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.9375rem;
    color: var(--gray-900);
    background: white;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-control:hover {
    border-color: var(--gray-400);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px var(--primary-50);
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-control-lg {
    padding: 16px 20px;
    font-size: 1rem;
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 44px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

/* Search Box */
.search-box {
    position: relative;
    max-width: 360px;
}

.search-box i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 0.875rem;
    pointer-events: none;
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    font-size: 0.875rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: var(--gray-50);
    transition: all var(--transition-fast);
}

.search-box input:hover {
    background: white;
    border-color: var(--gray-300);
}

.search-box input:focus {
    outline: none;
    background: white;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px var(--primary-50);
}

/* ============================================
   ACTION BUTTONS (Table)
   ============================================ */
.action-buttons {
    display: flex;
    gap: 8px;
}

.action-btn {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    background: white;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

.action-btn:hover {
    background: var(--gray-50);
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.action-btn.view:hover {
    background: var(--info-50);
    color: var(--info-600);
    border-color: var(--info-200);
}

.action-btn.edit:hover {
    background: var(--warning-50);
    color: var(--warning-600);
    border-color: var(--warning-200);
}

.action-btn.delete:hover {
    background: var(--error-50);
    color: var(--error-600);
    border-color: var(--error-200);
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: 64px 24px;
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    color: var(--gray-400);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 20px;
}

.empty-state h3 {
    font-size: 1.125rem;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--gray-500);
    margin-bottom: 24px;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   MODALS
   ============================================ */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-100);
}

.modal-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--gray-400);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--gray-100);
    background: var(--gray-25);
}

/* ============================================
   PROGRESS BAR
   ============================================ */
.progress-bar {
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-500), var(--success-400));
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

/* ============================================
   UPLOAD ZONE
   ============================================ */
.upload-zone {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-xl);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--gray-25);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary-500);
    background: var(--primary-50);
}

.upload-zone-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: var(--primary-100);
    color: var(--primary-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 16px;
}

.upload-zone h4 {
    font-size: 1rem;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.upload-zone p {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 16px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .page-header-actions {
        width: 100%;
    }
    
    .page-header-actions .btn {
        flex: 1;
    }
    
    .search-box {
        max-width: 100%;
    }
    
    .card-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
}

/* ============================================
   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-in {
    animation: fadeIn var(--transition-base) ease-out;
}

.animate-slide-up {
    animation: slideUp var(--transition-slow) ease-out;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ============================================
   SKELETON LOADING
   ============================================ */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}