/**
 * Optimized Modern CSS for CRM System
 * Performance-focused with CSS Variables and Modern Features
 */

/* CSS Variables for Theming */
:root {
    /* Colors */
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    
    /* Light Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f5f5f5;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --card-shadow: rgba(0, 0, 0, 0.1);
    --card-shadow-hover: rgba(0, 0, 0, 0.15);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
}

/* Dark Theme - Pure Black and White */
[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #000000;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --border-color: #333333;
    --card-shadow: rgba(0, 0, 0, 0.5);
    --card-shadow-hover: rgba(0, 0, 0, 0.7);
}

/* Dark Mode - Comprehensive Styles */
[data-theme="dark"] {
    color-scheme: dark;
}

[data-theme="dark"] * {
    border-color: var(--border-color);
}

[data-theme="dark"] body,
[data-theme="dark"] html {
    background-color: var(--bg-tertiary) !important;
    background: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] main,
[data-theme="dark"] .container,
[data-theme="dark"] .container-fluid,
[data-theme="dark"] .container-sm,
[data-theme="dark"] .container-md,
[data-theme="dark"] .container-lg,
[data-theme="dark"] .container-xl,
[data-theme="dark"] .container-xxl {
    background-color: var(--bg-tertiary) !important;
    background: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

/* Force all text elements to be white */
[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6,
[data-theme="dark"] p,
[data-theme="dark"] span:not(.badge):not(.btn *),
[data-theme="dark"] div:not(.stat-card):not(.btn):not(.badge),
[data-theme="dark"] label,
[data-theme="dark"] strong,
[data-theme="dark"] small,
[data-theme="dark"] em,
[data-theme="dark"] i:not(.bi):not(.icon),
[data-theme="dark"] b,
[data-theme="dark"] td,
[data-theme="dark"] th,
[data-theme="dark"] li,
[data-theme="dark"] ul,
[data-theme="dark"] ol {
    color: var(--text-primary) !important;
}

/* Force all containers and sections */
[data-theme="dark"] section,
[data-theme="dark"] article,
[data-theme="dark"] aside,
[data-theme="dark"] header:not(.card-header),
[data-theme="dark"] footer {
    background-color: transparent !important;
    color: var(--text-primary) !important;
}

/* Override any white backgrounds */
[data-theme="dark"] [class*="bg-"],
[data-theme="dark"] [style*="background"] {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .card,
[data-theme="dark"] .card-body,
[data-theme="dark"] .card > * {
    background-color: var(--bg-primary) !important;
    background: var(--bg-primary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .card *:not(.btn):not(.badge):not(.stat-card *) {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .card-header {
    background: linear-gradient(135deg, #1e3a5f 0%, #0d4a7a 100%) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .table {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .table thead {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .table tbody tr {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .table tbody tr:hover {
    background-color: var(--bg-secondary) !important;
}

[data-theme="dark"] .table td,
[data-theme="dark"] .table th {
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .form-control::placeholder {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .form-label {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .input-group-text {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .alert {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .alert-success {
    background-color: rgba(25, 135, 84, 0.2) !important;
    border-color: #198754 !important;
    color: #75b798 !important;
}

[data-theme="dark"] .alert-danger {
    background-color: rgba(220, 53, 69, 0.2) !important;
    border-color: #dc3545 !important;
    color: #f1aeb5 !important;
}

[data-theme="dark"] .alert-warning {
    background-color: rgba(255, 193, 7, 0.2) !important;
    border-color: #ffc107 !important;
    color: #ffda6a !important;
}

[data-theme="dark"] .alert-info {
    background-color: rgba(13, 202, 240, 0.2) !important;
    border-color: #0dcaf0 !important;
    color: #86cfda !important;
}

[data-theme="dark"] .modal-content {
    background-color: var(--bg-primary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .modal-header {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .modal-body {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .modal-footer {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .dropdown-menu {
    background-color: var(--bg-primary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .dropdown-item {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .navbar {
    background-color: #0d4a7a !important;
}

[data-theme="dark"] .navbar-brand,
[data-theme="dark"] .nav-link {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .nav-link:hover {
    color: #86cfda !important;
}

[data-theme="dark"] footer {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .text-muted {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .bg-light {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .list-group-item {
    background-color: var(--bg-primary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .list-group-item:hover {
    background-color: var(--bg-secondary) !important;
}

[data-theme="dark"] .badge {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .btn-light {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .btn-light:hover {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .btn-outline-light {
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .btn-outline-light:hover {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .stat-card {
    color: white !important;
}

[data-theme="dark"] .stat-card.bg-primary,
[data-theme="dark"] .stat-card.bg-secondary,
[data-theme="dark"] .stat-card.bg-success,
[data-theme="dark"] .stat-card.bg-danger,
[data-theme="dark"] .stat-card.bg-warning,
[data-theme="dark"] .stat-card.bg-info,
[data-theme="dark"] .stat-card.bg-dark {
    color: white !important;
}

/* Ensure dispatch button is visible in both themes */
.btn-warning,
[data-theme="dark"] .btn-warning {
    background-color: #ffc107 !important;
    border-color: #ffc107 !important;
    color: #000 !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.25rem !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.btn-warning:hover,
[data-theme="dark"] .btn-warning:hover {
    background-color: #ffca2c !important;
    border-color: #ffca2c !important;
    color: #000 !important;
}

/* Ensure dispatch button icon is visible */
.btn-warning .bi,
[data-theme="dark"] .btn-warning .bi {
    display: inline-block !important;
    visibility: visible !important;
    opacity: 1 !important;
    color: #000 !important;
}

/* Fix for buttons that might be hidden */
button.btn[data-bs-toggle="modal"] {
    display: inline-flex !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* Additional Dark Mode Styles for Complete Coverage */
[data-theme="dark"] .row {
    background-color: transparent !important;
}

[data-theme="dark"] .col,
[data-theme="dark"] .col-md-3,
[data-theme="dark"] .col-md-6,
[data-theme="dark"] .col-md-12,
[data-theme="dark"] [class*="col-"] {
    background-color: transparent !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .bg-white {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .bg-body {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .text-dark {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .text-black {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .text-body {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .border {
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .border-top,
[data-theme="dark"] .border-bottom,
[data-theme="dark"] .border-start,
[data-theme="dark"] .border-end {
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .shadow {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.5) !important;
}

[data-theme="dark"] .shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.3) !important;
}

[data-theme="dark"] .shadow-lg {
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.6) !important;
}

/* Ensure all text elements are white */
[data-theme="dark"] a:not(.btn):not(.nav-link):not(.dropdown-item) {
    color: #86cfda !important;
}

[data-theme="dark"] a:not(.btn):not(.nav-link):not(.dropdown-item):hover {
    color: #a8d8e0 !important;
}

/* Input groups */
[data-theme="dark"] .input-group {
    background-color: transparent !important;
}

/* Breadcrumb */
[data-theme="dark"] .breadcrumb {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .breadcrumb-item a {
    color: #86cfda !important;
}

/* Pagination */
[data-theme="dark"] .pagination .page-link {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .pagination .page-link:hover {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .pagination .page-item.active .page-link {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
}

/* Progress bars */
[data-theme="dark"] .progress {
    background-color: var(--bg-secondary) !important;
}

/* Tooltips */
[data-theme="dark"] .tooltip .tooltip-inner {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color) !important;
}

/* Popovers */
[data-theme="dark"] .popover {
    background-color: var(--bg-primary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .popover-header {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .popover-body {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

/* Code blocks */
[data-theme="dark"] code,
[data-theme="dark"] pre {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

/* Blockquotes */
[data-theme="dark"] blockquote {
    border-left-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

/* HR */
[data-theme="dark"] hr {
    border-color: var(--border-color) !important;
    opacity: 0.3;
}

/* Images in dark mode - slightly dimmed */
[data-theme="dark"] img {
    opacity: 0.9;
}

/* Ensure stat cards maintain their colors but text is readable */
[data-theme="dark"] .stat-card.bg-primary,
[data-theme="dark"] .stat-card.bg-secondary,
[data-theme="dark"] .stat-card.bg-success,
[data-theme="dark"] .stat-card.bg-danger,
[data-theme="dark"] .stat-card.bg-warning,
[data-theme="dark"] .stat-card.bg-info,
[data-theme="dark"] .stat-card.bg-dark {
    color: white !important;
}

[data-theme="dark"] .stat-card.bg-primary h2,
[data-theme="dark"] .stat-card.bg-primary h4,
[data-theme="dark"] .stat-card.bg-primary h6,
[data-theme="dark"] .stat-card.bg-secondary h2,
[data-theme="dark"] .stat-card.bg-secondary h4,
[data-theme="dark"] .stat-card.bg-secondary h6,
[data-theme="dark"] .stat-card.bg-success h2,
[data-theme="dark"] .stat-card.bg-success h4,
[data-theme="dark"] .stat-card.bg-success h6,
[data-theme="dark"] .stat-card.bg-danger h2,
[data-theme="dark"] .stat-card.bg-danger h4,
[data-theme="dark"] .stat-card.bg-danger h6,
[data-theme="dark"] .stat-card.bg-warning h2,
[data-theme="dark"] .stat-card.bg-warning h4,
[data-theme="dark"] .stat-card.bg-warning h6,
[data-theme="dark"] .stat-card.bg-info h2,
[data-theme="dark"] .stat-card.bg-info h4,
[data-theme="dark"] .stat-card.bg-info h6,
[data-theme="dark"] .stat-card.bg-dark h2,
[data-theme="dark"] .stat-card.bg-dark h4,
[data-theme="dark"] .stat-card.bg-dark h6 {
    color: white !important;
}

/* Override Bootstrap default white backgrounds */
[data-theme="dark"] .bg-white,
[data-theme="dark"] [class*="bg-white"] {
    background-color: var(--bg-primary) !important;
}

[data-theme="dark"] .bg-body,
[data-theme="dark"] [class*="bg-body"] {
    background-color: var(--bg-tertiary) !important;
}

/* Ensure all containers have dark background */
[data-theme="dark"] section,
[data-theme="dark"] article,
[data-theme="dark"] aside {
    background-color: transparent !important;
    color: var(--text-primary) !important;
}

/* Override any inline styles or Bootstrap utilities */
[data-theme="dark"] [style*="background-color: white"],
[data-theme="dark"] [style*="background-color:#fff"],
[data-theme="dark"] [style*="background-color:#ffffff"] {
    background-color: var(--bg-primary) !important;
}

[data-theme="dark"] [style*="color: black"],
[data-theme="dark"] [style*="color:#000"],
[data-theme="dark"] [style*="color:#000000"] {
    color: var(--text-primary) !important;
}

/* Ensure all divs and containers inherit dark theme */
[data-theme="dark"] div:not(.stat-card):not(.btn):not(.badge):not(.alert):not([class*="bg-"]) {
    color: var(--text-primary) !important;
}

/* Force all divs with white background to be dark */
[data-theme="dark"] div[class*="bg-white"],
[data-theme="dark"] div[style*="background-color: white"],
[data-theme="dark"] div[style*="background-color:#fff"],
[data-theme="dark"] div[style*="background-color:#ffffff"] {
    background-color: var(--bg-primary) !important;
    background: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

/* Fix for any white text that should be visible */
[data-theme="dark"] .text-white {
    color: var(--text-primary) !important;
}

/* Ensure proper contrast for all text */
[data-theme="dark"] p,
[data-theme="dark"] div,
[data-theme="dark"] span:not(.badge):not(.btn *) {
    color: var(--text-primary) !important;
}

/* Fix for Bootstrap's default text colors */
[data-theme="dark"] .text-body,
[data-theme="dark"] .text-body-secondary {
    color: var(--text-primary) !important;
}

/* Ensure links are visible */
[data-theme="dark"] a {
    color: #86cfda !important;
}

[data-theme="dark"] a:hover {
    color: #a8d8e0 !important;
}

/* Fix for any remaining white backgrounds */
[data-theme="dark"] .white,
[data-theme="dark"] [class*="white"] {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

/* AGGRESSIVE DARK MODE OVERRIDES - Ensure everything is visible */
[data-theme="dark"] {
    background-color: var(--bg-tertiary) !important;
}

[data-theme="dark"] body > *:not(script):not(style) {
    color: var(--text-primary) !important;
}

/* Force all text in cards to be white */
[data-theme="dark"] .card h1,
[data-theme="dark"] .card h2,
[data-theme="dark"] .card h3,
[data-theme="dark"] .card h4,
[data-theme="dark"] .card h5,
[data-theme="dark"] .card h6,
[data-theme="dark"] .card p,
[data-theme="dark"] .card span,
[data-theme="dark"] .card div,
[data-theme="dark"] .card label,
[data-theme="dark"] .card strong,
[data-theme="dark"] .card small,
[data-theme="dark"] .card td,
[data-theme="dark"] .card th,
[data-theme="dark"] .card li {
    color: var(--text-primary) !important;
}

/* Force all row and column backgrounds */
[data-theme="dark"] .row {
    background-color: transparent !important;
}

[data-theme="dark"] [class*="col-"] {
    background-color: transparent !important;
    color: var(--text-primary) !important;
}

/* Override any inline styles that might set white backgrounds */
[data-theme="dark"] [style*="background-color: white"],
[data-theme="dark"] [style*="background-color:#fff"],
[data-theme="dark"] [style*="background-color:#ffffff"],
[data-theme="dark"] [style*="background-color: rgb(255, 255, 255)"],
[data-theme="dark"] [style*="background-color: rgba(255, 255, 255"] {
    background-color: var(--bg-primary) !important;
    background: var(--bg-primary) !important;
}

/* Override any inline styles that might set black/dark text */
[data-theme="dark"] [style*="color: black"],
[data-theme="dark"] [style*="color:#000"],
[data-theme="dark"] [style*="color:#000000"],
[data-theme="dark"] [style*="color: rgb(0, 0, 0)"],
[data-theme="dark"] [style*="color: rgb(33, 37, 41)"] {
    color: var(--text-primary) !important;
}

/* Ensure all Bootstrap utility classes work in dark mode */
[data-theme="dark"] .text-reset {
    color: var(--text-primary) !important;
}

/* Force visibility for all content */
[data-theme="dark"] .content,
[data-theme="dark"] .wrapper,
[data-theme="dark"] .page-content,
[data-theme="dark"] .main-content {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

/* Ensure tables are fully visible */
[data-theme="dark"] .table-responsive {
    background-color: transparent !important;
}

[data-theme="dark"] .table-responsive .table {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

/* Force all text in main content area */
[data-theme="dark"] main *:not(.btn):not(.badge):not(.stat-card *):not([class*="bg-"]) {
    color: var(--text-primary) !important;
}

/* Ensure py-4 and other padding utilities don't hide content */
[data-theme="dark"] [class*="py-"],
[data-theme="dark"] [class*="px-"],
[data-theme="dark"] [class*="p-"] {
    color: inherit !important;
}

/* Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Performance Optimizations */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Login Page */
.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.login-container {
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 1;
}

.login-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navigation */
.navbar {
    box-shadow: var(--shadow-sm);
    background: var(--primary-color) !important;
    transition: all var(--transition-normal);
}

.navbar-brand {
    font-weight: var(--font-weight-bold);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Cards */
.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    background-color: var(--bg-primary);
    overflow: hidden;
    will-change: transform;
}

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

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    border-bottom: none;
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: var(--font-weight-semibold);
    color: white;
}

.stat-card {
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    will-change: transform;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transition: transform var(--transition-slow);
}

.stat-card:hover::before {
    transform: scale(1.1);
}

.stat-card h2 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    position: relative;
    z-index: 1;
}

.stat-card h4 {
    font-size: 1.8rem;
    font-weight: var(--font-weight-bold);
    position: relative;
    z-index: 1;
}

/* Tables */
.table {
    background: var(--bg-primary);
    color: var(--text-primary);
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background-color: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.table-hover tbody tr {
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.table-hover tbody tr:hover {
    background-color: var(--bg-secondary);
    transform: scale(1.01);
}

/* Buttons */
.btn {
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-lg);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    will-change: transform;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

/* Forms */
.form-control,
.form-select {
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    padding: 0.6rem 0.75rem;
    transition: all var(--transition-fast);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
    transform: translateY(-1px);
    outline: none;
}

.form-label {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

/* Alerts */
.alert {
    border-radius: var(--radius-md);
    border: none;
    box-shadow: var(--shadow-sm);
    animation: slideInUp 0.3s ease;
}

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

/* Badges */
.badge {
    padding: 0.5em 0.75em;
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-sm);
}

/* Modals */
.modal-content {
    border-radius: var(--radius-lg);
    border: none;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Dark Mode Toggle */
.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    border: none;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    will-change: transform;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: var(--shadow-lg);
}

/* Quick Actions */
.quick-actions {
    position: fixed;
    bottom: 80px;
    right: 20px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.quick-action-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    will-change: transform;
}

.quick-action-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 3px solid var(--primary-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

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

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

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 4px;
}

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

/* Print Styles */
@media print {
    .navbar,
    .btn,
    footer,
    .card-header,
    .theme-toggle,
    .quick-actions {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--border-color);
        page-break-inside: avoid;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .stat-card h2 {
        font-size: 2rem;
    }
    
    .stat-card h4 {
        font-size: 1.5rem;
    }
    
    .theme-toggle {
        bottom: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
    }
    
    .quick-actions {
        bottom: 70px;
        right: 15px;
    }
    
    .login-card {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

/* Performance Optimizations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Utility Classes */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-up {
    animation: slideInUp 0.5s ease-out;
}

.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.shadow {
    box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
    box-shadow: var(--shadow-lg) !important;
}

/* Grid System Enhancements */
.row {
    display: flex;
    flex-wrap: wrap;
    margin-left: -15px;
    margin-right: -15px;
}

[class*="col-"] {
    padding-left: 15px;
    padding-right: 15px;
}

/* Image Optimization */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[data-src].loaded {
    opacity: 1;
}

/* Smooth Transitions */
a, button {
    transition: all var(--transition-fast);
}

/* Container Improvements */
.container-fluid {
    width: 100%;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

/* Status Badge Colors */
.badge-primary {
    background-color: var(--primary-color);
}

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

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

.badge-warning {
    background-color: var(--warning-color);
    color: #000;
}

.badge-info {
    background-color: var(--info-color);
    color: #000;
}

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