/**
 * Stratamize POS - Global Theme Stylesheet
 * Industry-standard dashboard design system
 * Version: 1.0.0
 * 
 * This file provides a centralized, consistent design system for the entire application.
 * It follows modern dashboard UI principles with a focus on:
 * - Clear visual hierarchy
 * - Consistent spacing and typography
 * - Card-based layouts
 * - Responsive data tables
 * - Accessible form controls
 */

/* ============================================
   CSS VARIABLES - Design Tokens
   ============================================ */

:root {
    /* Color Palette - Primary & Semantic Colors */
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #1e40af;
    --secondary: #10b981;
    --secondary-light: #34d399;
    --danger: #ef4444;
    --danger-light: #f87171;
    --success: #22c55e;
    --success-light: #4ade80;
    --warning: #f59e0b;
    --warning-light: #fbbf24;
    --info: #06b6d4;
    --info-light: #22d3ee;
    
    /* Neutral Colors - Dark Theme (Default) */
    --background: #0f172a;
    --surface: #1e293b;
    --surface-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border: #374151;
    --border-light: #475569;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.6);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #3b82f6, #8b5cf6);
    --gradient-secondary: linear-gradient(135deg, #10b981, #34d399);
    --gradient-danger: linear-gradient(135deg, #ef4444, #f97316);
    --gradient-warning: linear-gradient(135deg, #f59e0b, #fbbf24);
    --gradient-info: linear-gradient(135deg, #06b6d4, #22d3ee);
    --gradient-success: linear-gradient(135deg, #22c55e, #4ade80);
    
    /* Spacing Scale - 8pt Grid System */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 28px;
    --font-size-4xl: 32px;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Table Specific Variables */
    --table-header-bg: #1e293b;
    --table-header-text: #f1f5f9;
    --table-row-border: #374151;
    --table-row-striped: rgba(51, 65, 85, 0.3);
    --table-row-hover: #334155;
    --table-cell-padding-x: 16px;
    --table-cell-padding-y: 12px;
}

/* Light Theme Support */
body.light {
    --background: #f8fafc;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Table Specific - Light Theme */
    --table-header-bg: #f1f5f9;
    --table-header-text: #0f172a;
    --table-row-border: #e2e8f0;
    --table-row-striped: rgba(241, 245, 249, 0.5);
    --table-row-hover: #f8fafc;
}

/* ============================================
   BASE STYLES & RESETS
   ============================================ */

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    background: var(--background);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

/* ============================================
   LAYOUT STRUCTURE
   ============================================ */

.app-wrapper {
    display: flex;
    width: 100%;
    min-height: 100vh;
    position: relative;
}

.main-content {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.full-panel {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

/* Content Container - Max Width for Readability */
.content-container {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* ============================================
   TYPOGRAPHY HIERARCHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-4xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 12px;
}

h2 {
    font-size: var(--font-size-3xl);
    color: var(--text-primary);
}

h3 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

h4 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

h5 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

h6 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* Text Utilities */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }

/* Font Size Utilities */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }

/* ============================================
   PAGE STRUCTURE
   ============================================ */

/* Page Header */
.page-header {
    margin-bottom: var(--spacing-xl);
}

.page-header h1 {
    margin-bottom: var(--spacing-sm);
}

.page-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Section Header */
.section-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border);
}

.section-header h2 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-extrabold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    list-style: none;
    padding: 0;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.breadcrumb-item:not(:last-child)::after {
    content: '›';
    color: var(--text-secondary);
    margin-left: var(--spacing-sm);
}

.breadcrumb-item.active {
    color: var(--primary);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   CARD COMPONENTS
   ============================================ */

.dashboard-card,
.card,
.kpi-card,
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.dashboard-card:hover,
.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Card Header */
.dashboard-card-header,
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.dashboard-card-header h3,
.card-header h3,
.card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0;
}

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

/* Card Body */
.card-body {
    padding: var(--spacing-lg);
}

/* Card Footer */
.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border);
    background: var(--surface-hover);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* KPI Card */
.kpi-card {
    text-align: center;
    padding: var(--spacing-xl);
}

.kpi-value {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.kpi-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kpi-change {
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
}

.kpi-change.positive {
    color: var(--success);
}

.kpi-change.negative {
    color: var(--danger);
}

/* ============================================
   FORM COMPONENTS
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-label-required::after {
    content: ' *';
    color: var(--danger);
}

.form-control,
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: var(--font-size-base);
    background: var(--surface);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    font-family: var(--font-family);
}

.form-control:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
    outline: none;
}

.form-control:disabled,
.form-input:disabled,
.form-select:disabled {
    background: var(--surface-hover);
    cursor: not-allowed;
    opacity: 0.6;
}

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

.form-select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%239ca3af' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

/* Input Groups */
.input-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.input-group .form-control {
    flex: 1;
}

/* Form Helper Text */
.form-help-text,
.form-text {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.form-error {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--danger);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.form-check-input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-check-label {
    cursor: pointer;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    margin-bottom: 0;
}

/* ============================================
   BUTTON COMPONENTS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 10px 20px;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

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

/* Button Sizes */
.btn-sm {
    padding: 6px 12px;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 14px 28px;
    font-size: var(--font-size-lg);
}

/* Button Variants */
.btn-primary {
    background: var(--gradient-primary);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-success {
    background: var(--gradient-success);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-danger {
    background: var(--gradient-danger);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-danger:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-warning {
    background: var(--gradient-warning);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-warning:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-info {
    background: var(--gradient-info);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-info:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline-primary:hover:not(:disabled) {
    background: var(--primary);
    color: #ffffff;
}

.btn-outline-secondary {
    background: transparent;
    color: var(--secondary);
    border: 2px solid var(--secondary);
}

.btn-outline-secondary:hover:not(:disabled) {
    background: var(--secondary);
    color: #ffffff;
}

.btn-outline-danger {
    background: transparent;
    color: var(--danger);
    border: 2px solid var(--danger);
}

.btn-outline-danger:hover:not(:disabled) {
    background: var(--danger);
    color: #ffffff;
}

/* Button Groups */
.btn-group {
    display: flex;
    gap: var(--spacing-sm);
}

/* ============================================
   TABLE COMPONENTS
   ============================================ */

/* Table Container - Responsive Wrapper */
.table-container,
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    -webkit-overflow-scrolling: touch;
    margin-bottom: var(--spacing-lg);
}

/* Base Table Styles */
.table,
.data-table,
.table-standard {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
}

/* Table Header */
.table thead,
.data-table thead,
.table-standard thead {
    background: var(--table-header-bg);
    border-bottom: 2px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.table thead th,
.data-table thead th,
.table-standard thead th {
    padding: var(--table-cell-padding-y) var(--table-cell-padding-x);
    text-align: left;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--table-header-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    vertical-align: middle;
}

/* Table Body */
.table tbody tr,
.data-table tbody tr,
.table-standard tbody tr {
    border-bottom: 1px solid var(--table-row-border);
    transition: background var(--transition-fast);
}

.table tbody tr:hover,
.data-table tbody tr:hover,
.table-standard tbody tr:hover {
    background: var(--table-row-hover);
    cursor: pointer;
}

.table tbody tr:last-child,
.data-table tbody tr:last-child,
.table-standard tbody tr:last-child {
    border-bottom: none;
}

.table tbody td,
.data-table tbody td,
.table-standard tbody td {
    padding: var(--table-cell-padding-y) var(--table-cell-padding-x);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    vertical-align: middle;
    line-height: 1.5;
}

/* Table Striped - Zebra Rows */
.table-striped tbody tr:nth-child(even),
.data-table.table-striped tbody tr:nth-child(even),
.table-standard.table-striped tbody tr:nth-child(even) {
    background: var(--table-row-striped);
}

.table-striped tbody tr:nth-child(even):hover,
.data-table.table-striped tbody tr:nth-child(even):hover,
.table-standard.table-striped tbody tr:nth-child(even):hover {
    background: var(--table-row-hover);
}

/* Table Bordered */
.table-bordered,
.table-bordered th,
.table-bordered td {
    border: 1px solid var(--table-row-border);
}

/* Table Compact - Reduced Padding */
.table-compact tbody td,
.table-compact thead th {
    padding: var(--spacing-sm) var(--spacing-md);
}

/* Data Type Alignment Utilities */
.table th.text-left,
.table td.text-left,
.data-table th.text-left,
.data-table td.text-left,
.table-standard th.text-left,
.table-standard td.text-left {
    text-align: left;
}

.table th.text-center,
.table td.text-center,
.data-table th.text-center,
.data-table td.text-center,
.table-standard th.text-center,
.table-standard td.text-center {
    text-align: center;
}

.table th.text-right,
.table td.text-right,
.data-table th.text-right,
.data-table td.text-right,
.table-standard th.text-right,
.table-standard td.text-right {
    text-align: right;
}

/* Currency and Number Formatting */
.table td.currency,
.table td.number,
.data-table td.currency,
.data-table td.number,
.table-standard td.currency,
.table-standard td.number {
    text-align: right;
    font-variant-numeric: tabular-nums;
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
}

/* Column Width Utilities */
.table th.w-auto,
.table td.w-auto {
    width: auto;
}

.table th.w-sm,
.table td.w-sm {
    width: 80px;
}

.table th.w-md,
.table td.w-md {
    width: 120px;
}

.table th.w-lg,
.table td.w-lg {
    width: 180px;
}

.table th.w-xl,
.table td.w-xl {
    width: 240px;
}

/* Empty State */
.table-empty {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
    color: var(--text-muted);
    font-size: var(--font-size-lg);
}

.table-empty-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* Sortable Table Headers */
.table th.sortable,
.data-table th.sortable,
.table-standard th.sortable {
    cursor: pointer;
    user-select: none;
    position: relative;
    padding-right: 24px;
}

.table th.sortable:hover,
.data-table th.sortable:hover,
.table-standard th.sortable:hover {
    background: var(--surface-hover);
}

.table th.sortable::after,
.data-table th.sortable::after,
.table-standard th.sortable::after {
    content: '⇅';
    position: absolute;
    right: 8px;
    opacity: 0.3;
    font-size: 12px;
}

.table th.sortable.asc::after,
.data-table th.sortable.asc::after,
.table-standard th.sortable.asc::after {
    content: '↑';
    opacity: 1;
}

.table th.sortable.desc::after,
.data-table th.sortable.desc::after,
.table-standard th.sortable.desc::after {
    content: '↓';
    opacity: 1;
}

/* Action Column Styling */
.table td.actions,
.data-table td.actions,
.table-standard td.actions {
    white-space: nowrap;
    text-align: center;
}

.table td.actions .btn,
.data-table td.actions .btn,
.table-standard td.actions .btn {
    margin: 0 2px;
}

/* Cell Content Truncation */
.table td.truncate,
.data-table td.truncate,
.table-standard td.truncate {
    max-width: 200px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Responsive Table Behavior */
@media (max-width: 768px) {
    .table-responsive {
        display: block;
        width: 100%;
        overflow-x: auto;
    }
    
    .table thead th,
    .data-table thead th,
    .table-standard thead th,
    .table tbody td,
    .data-table tbody td,
    .table-standard tbody td {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    /* Hide less important columns on mobile */
    .table th.hide-mobile,
    .table td.hide-mobile,
    .data-table th.hide-mobile,
    .data-table td.hide-mobile,
    .table-standard th.hide-mobile,
    .table-standard td.hide-mobile {
        display: none;
    }
}

@media (max-width: 576px) {
    .table thead th,
    .data-table thead th,
    .table-standard thead th {
        font-size: var(--font-size-xs);
        padding: var(--spacing-sm);
    }
    
    .table tbody td,
    .data-table tbody td,
    .table-standard tbody td {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm);
    }
}

/* ============================================
   BADGE & LABEL COMPONENTS
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: var(--primary);
    color: #ffffff;
}

.badge-secondary {
    background: var(--secondary);
    color: #ffffff;
}

.badge-success {
    background: var(--success);
    color: #ffffff;
}

.badge-danger {
    background: var(--danger);
    color: #ffffff;
}

.badge-warning {
    background: var(--warning);
    color: #ffffff;
}

.badge-info {
    background: var(--info);
    color: #ffffff;
}

/* ============================================
   ALERT COMPONENTS
   ============================================ */

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid transparent;
    border-radius: var(--radius);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.alert-icon {
    flex-shrink: 0;
    font-size: var(--font-size-xl);
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xs);
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: var(--success);
    color: var(--success-light);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
    color: var(--danger-light);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--warning);
    color: var(--warning-light);
}

.alert-info {
    background: rgba(6, 182, 212, 0.1);
    border-color: var(--info);
    color: var(--info-light);
}

/* ============================================
   MODAL COMPONENTS
   ============================================ */

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: var(--z-modal-backdrop);
    backdrop-filter: blur(4px);
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-modal);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Spacing Utilities */
.m-0 { margin: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.ml-1 { margin-left: var(--spacing-sm); }
.ml-2 { margin-left: var(--spacing-md); }
.mr-1 { margin-right: var(--spacing-sm); }
.mr-2 { margin-right: var(--spacing-md); }
.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

/* Display Utilities */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }

/* Flex Utilities */
.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.justify-content-start { justify-content: flex-start; }
.justify-content-end { justify-content: flex-end; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.align-items-start { align-items: flex-start; }
.align-items-end { align-items: flex-end; }
.align-items-center { align-items: center; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }
.gap-4 { gap: var(--spacing-xl); }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Width Utilities */
.w-100 { width: 100%; }
.w-75 { width: 75%; }
.w-50 { width: 50%; }
.w-25 { width: 25%; }

/* Visibility */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 991px) {
    .main-content {
        padding: var(--spacing-md);
    }
    
    .full-panel {
        padding: var(--spacing-md);
        gap: var(--spacing-lg);
    }
    
    h1 {
        font-size: var(--font-size-3xl);
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .main-content {
        padding: var(--spacing-md);
    }
    
    .full-panel {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    h1 {
        font-size: var(--font-size-2xl);
    }
    
    .dashboard-card,
    .card {
        padding: var(--spacing-md);
    }
    
    .table thead th,
    .table tbody td {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
}

/* ============================================
   ANIMATION & TRANSITIONS
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

.fade-in {
    animation: fadeIn var(--transition);
}

.slide-in-up {
    animation: slideInUp var(--transition);
}

.slide-in-down {
    animation: slideInDown var(--transition);
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

/* Focus States */
*:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Skip to Content Link */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-to-content:focus {
    top: 0;
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    body {
        background: white;
        color: black;
    }
    
    .sidebar,
    .btn,
    .no-print {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
    }
    
    .dashboard-card,
    .card {
        border: 1px solid #ccc;
        box-shadow: none;
        page-break-inside: avoid;
    }
}