/**
 * Enhanced UI Styles for Modern Dashboard Analytics Enhancement
 * Provides comprehensive styling for modern design system, responsive layout, 
 * popups, form feedback, loading states, notifications, and accessibility
 */

/* ==========================================================================
   MODERN DESIGN SYSTEM VARIABLES
   ========================================================================== */

:root {
    /* Primary Colors */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;

    /* Gray Scale */
    --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;

    /* Success Colors */
    --success-50: #f0fdf4;
    --success-100: #dcfce7;
    --success-500: #22c55e;
    --success-600: #16a34a;
    --success-700: #15803d;

    /* Warning Colors */
    --warning-50: #fffbeb;
    --warning-100: #fef3c7;
    --warning-500: #f59e0b;
    --warning-600: #d97706;

    /* Error Colors */
    --error-50: #fef2f2;
    --error-100: #fee2e2;
    --error-500: #ef4444;
    --error-600: #dc2626;

    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Border Radius */
    --radius-sm: 0.125rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --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);

    /* Typography */
    --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   MODERN DASHBOARD LAYOUT SYSTEM
   ========================================================================== */

/* Modern Dashboard Container */
.dashboard-container-modern {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-6);
    min-height: 100vh;
}

@media (min-width: 768px) {
    .dashboard-container-modern {
        grid-template-columns: 280px 1fr;
        gap: var(--space-8);
        padding: var(--space-8);
    }
}

@media (min-width: 1024px) {
    .dashboard-container-modern {
        grid-template-columns: 320px 1fr 280px;
    }
}

/* Modern Card System */
.card-modern {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.card-modern:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.card-modern-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-100);
    background: var(--gray-50);
}

.card-modern-body {
    padding: var(--space-6);
}

.card-modern-footer {
    padding: var(--space-4) var(--space-6);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-100);
}

/* Modern Grid System */
.grid-modern {
    display: grid;
    gap: var(--space-6);
}

.grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (min-width: 640px) {
    .sm\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sm\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 768px) {
    .md\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .md\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .md\:grid-cols-4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .lg\:grid-cols-4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .lg\:grid-cols-5 {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }
}

/* Modern Flexbox Utilities */
.flex-modern {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-end {
    justify-content: flex-end;
}

.gap-1 {
    gap: var(--space-1);
}

.gap-2 {
    gap: var(--space-2);
}

.gap-3 {
    gap: var(--space-3);
}

.gap-4 {
    gap: var(--space-4);
}

.gap-6 {
    gap: var(--space-6);
}

.gap-8 {
    gap: var(--space-8);
}

/* Modern Typography */
.text-xs {
    font-size: 0.75rem;
    line-height: 1rem;
}

.text-sm {
    font-size: 0.875rem;
    line-height: 1.25rem;
}

.text-base {
    font-size: 1rem;
    line-height: 1.5rem;
}

.text-lg {
    font-size: 1.125rem;
    line-height: 1.75rem;
}

.text-xl {
    font-size: 1.25rem;
    line-height: 1.75rem;
}

.text-2xl {
    font-size: 1.5rem;
    line-height: 2rem;
}

.text-3xl {
    font-size: 1.875rem;
    line-height: 2.25rem;
}

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

.font-bold {
    font-weight: 700;
}

.text-gray-400 {
    color: var(--gray-400);
}

.text-gray-500 {
    color: var(--gray-500);
}

.text-gray-600 {
    color: var(--gray-600);
}

.text-gray-700 {
    color: var(--gray-700);
}

.text-gray-900 {
    color: var(--gray-900);
}

/* Modern Spacing */
.p-2 {
    padding: var(--space-2);
}

.p-3 {
    padding: var(--space-3);
}

.p-4 {
    padding: var(--space-4);
}

.p-6 {
    padding: var(--space-6);
}

.p-8 {
    padding: var(--space-8);
}

.px-3 {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
}

.px-4 {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

.px-6 {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.py-2 {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
}

.py-3 {
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
}

.py-4 {
    padding-top: var(--space-4);
    padding-bottom: var(--space-4);
}

.m-2 {
    margin: var(--space-2);
}

.m-4 {
    margin: var(--space-4);
}

.mb-2 {
    margin-bottom: var(--space-2);
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mb-6 {
    margin-bottom: var(--space-6);
}

/* ==========================================================================
   MODERN BUTTON SYSTEM
   ========================================================================== */

.btn-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.25rem;
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-modern:focus {
    outline: 2px solid transparent;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px var(--primary-200);
}

.btn-modern:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button Variants */
.btn-primary {
    background: var(--primary-600);
    color: white;
    border-color: var(--primary-600);
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-700);
    border-color: var(--primary-700);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-success {
    background: var(--success-600);
    color: white;
    border-color: var(--success-600);
}

.btn-success:hover:not(:disabled) {
    background: var(--success-700);
    transform: translateY(-1px);
}

.btn-warning {
    background: var(--warning-500);
    color: white;
    border-color: var(--warning-500);
}

.btn-warning:hover:not(:disabled) {
    background: var(--warning-600);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--error-500);
    color: white;
    border-color: var(--error-500);
}

.btn-danger:hover:not(:disabled) {
    background: var(--error-600);
    transform: translateY(-1px);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: 0.75rem;
}

.btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: 1rem;
}

.btn-xl {
    padding: var(--space-5) var(--space-8);
    font-size: 1.125rem;
}

/* Button Loading State */
.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin-modern 0.8s linear infinite;
}

.btn-loading .btn-text {
    opacity: 0;
}

/* ==========================================================================
   MODERN FORM SYSTEM
   ========================================================================== */

.form-modern {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.form-group-modern {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label-modern {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-input-modern {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    background: white;
}

.form-input-modern:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.form-input-modern:disabled {
    background: var(--gray-100);
    color: var(--gray-500);
    cursor: not-allowed;
}

/* Form Input States */
.form-input-error {
    border-color: var(--error-500);
    box-shadow: 0 0 0 3px var(--error-100);
}

.form-input-success {
    border-color: var(--success-500);
    box-shadow: 0 0 0 3px var(--success-100);
}

/* Form Select */
.form-select-modern {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    background: white;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-select-modern:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

/* Form Textarea */
.form-textarea-modern {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    resize: vertical;
    min-height: 100px;
    transition: all var(--transition-fast);
}

.form-textarea-modern:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

/* ==========================================================================
   MODERN NOTIFICATION SYSTEM
   ========================================================================== */

.notification-container-modern {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 400px;
    width: 100%;
    pointer-events: none;
}

.notification-modern {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--space-4);
    pointer-events: auto;
    transform: translateX(100%);
    opacity: 0;
    transition: all var(--transition-normal);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.notification-modern.show {
    transform: translateX(0);
    opacity: 1;
}

.notification-modern.hide {
    transform: translateX(100%);
    opacity: 0;
}

/* Notification Types */
.notification-success {
    border-left: 4px solid var(--success-500);
}

.notification-error {
    border-left: 4px solid var(--error-500);
}

.notification-warning {
    border-left: 4px solid var(--warning-500);
}

.notification-info {
    border-left: 4px solid var(--primary-500);
}

.notification-icon-modern {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    flex-shrink: 0;
}

.notification-success .notification-icon-modern {
    background: var(--success-100);
    color: var(--success-600);
}

.notification-error .notification-icon-modern {
    background: var(--error-100);
    color: var(--error-600);
}

.notification-warning .notification-icon-modern {
    background: var(--warning-100);
    color: var(--warning-600);
}

.notification-info .notification-icon-modern {
    background: var(--primary-100);
    color: var(--primary-600);
}

.notification-content-modern {
    flex: 1;
}

.notification-title-modern {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-1);
    font-size: 0.875rem;
}

.notification-message-modern {
    color: var(--gray-600);
    font-size: 0.75rem;
    line-height: 1.4;
}

.notification-close-modern {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    font-size: 16px;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

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

/* ==========================================================================
   MODERN LOADING STATES
   ========================================================================== */

.loading-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.spinner-modern {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-200);
    border-top: 2px solid var(--primary-500);
    border-radius: 50%;
    animation: spin-modern 0.8s linear infinite;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.spinner-lg {
    width: 32px;
    height: 32px;
    border-width: 3px;
}

.loading-overlay-modern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: inherit;
    z-index: 10;
}

.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 infinite;
    border-radius: var(--radius-md);
}

/* ==========================================================================
   MODERN RESPONSIVE UTILITIES
   ========================================================================== */

.hidden {
    display: none;
}

.block {
    display: block;
}

.inline-block {
    display: inline-block;
}

@media (min-width: 640px) {
    .sm\:block {
        display: block;
    }

    .sm\:hidden {
        display: none;
    }

    .sm\:flex {
        display: flex;
    }
}

@media (min-width: 768px) {
    .md\:block {
        display: block;
    }

    .md\:hidden {
        display: none;
    }

    .md\:flex {
        display: flex;
    }

    .md\:grid {
        display: grid;
    }
}

@media (min-width: 1024px) {
    .lg\:block {
        display: block;
    }

    .lg\:hidden {
        display: none;
    }

    .lg\:flex {
        display: flex;
    }
}

/* Mobile-first responsive padding */
@media (max-width: 640px) {
    .dashboard-container-modern {
        padding: var(--space-4);
        gap: var(--space-4);
    }

    .card-modern-header,
    .card-modern-body {
        padding: var(--space-4);
    }

    .btn-modern {
        width: 100%;
        justify-content: center;
    }

    .notification-container-modern {
        left: var(--space-4);
        right: var(--space-4);
        top: var(--space-4);
        max-width: none;
    }
}

/* ==========================================================================
   MODERN ANIMATIONS
   ========================================================================== */

@keyframes spin-modern {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

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

    100% {
        background-position: -200% 0;
    }
}

@keyframes fadeIn-modern {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp-modern {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeIn {
    animation: fadeIn-modern 0.3s ease-out;
}

.animate-slideUp {
    animation: slideUp-modern 0.3s ease-out;
}

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

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .btn-modern:hover:not(:disabled) {
        transform: none;
    }
}

@media (prefers-contrast: high) {
    .card-modern {
        border-width: 2px;
        border-color: var(--gray-900);
    }

    .btn-modern {
        border-width: 2px;
    }

    .form-input-modern {
        border-width: 2px;
    }
}

/* Focus indicators for keyboard navigation */
.focus-visible:focus {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

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

/* ==========================================================================
   POPUP OVERLAY SYSTEM
   ========================================================================== */

/* Enhanced Popup Backdrop */
.popup-backdrop-enhanced {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.popup-backdrop-enhanced.show {
    opacity: 1;
    visibility: visible;
}

/* Enhanced Modal Popup */
.popup-modal-enhanced {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    transform: scale(0.8) translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.popup-backdrop-enhanced.show .popup-modal-enhanced {
    transform: scale(1) translateY(0);
}

/* Enhanced Popup Header */
.popup-header-enhanced {
    padding: 24px 24px 16px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    align-items: center;
    gap: 16px;
}

.popup-icon-enhanced {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    flex-shrink: 0;
}

.popup-icon-enhanced.success {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
}

.popup-icon-enhanced.error {
    background: linear-gradient(135deg, #dc3545, #e74c3c);
    color: white;
}

.popup-icon-enhanced.warning {
    background: linear-gradient(135deg, #ffc107, #f39c12);
    color: white;
}

.popup-icon-enhanced.info {
    background: linear-gradient(135deg, #17a2b8, #3498db);
    color: white;
}

.popup-content-enhanced {
    flex: 1;
}

.popup-title-enhanced {
    font-size: 18px;
    font-weight: 600;
    color: #2d3748;
    margin: 0 0 4px 0;
    line-height: 1.3;
}

.popup-message-enhanced {
    font-size: 14px;
    color: #718096;
    margin: 0;
    line-height: 1.4;
}

.popup-close-enhanced {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #718096;
    font-size: 18px;
    transition: all 0.2s ease;
}

.popup-close-enhanced:hover {
    background: #f7fafc;
    color: #2d3748;
}

.popup-close-enhanced:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Enhanced Popup Body */
.popup-body-enhanced {
    padding: 0 24px 24px;
}

/* ==========================================================================
   LOADING SPINNER ANIMATIONS
   ========================================================================== */

/* Button Loading States */
.btn-loading-enhanced {
    position: relative;
    pointer-events: none;
    overflow: hidden;
}

.btn-loading-enhanced .btn-text {
    opacity: 0;
    transition: opacity 0.2s ease;
}

.btn-loading-enhanced::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin-enhanced 0.8s linear infinite;
}

/* Enhanced Spinner Variations */
.spinner-enhanced {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin-enhanced 0.8s linear infinite;
}

.spinner-enhanced.large {
    width: 32px;
    height: 32px;
    border-width: 3px;
}

.spinner-enhanced.small {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

/* Pulse Loading Animation */
.pulse-loading-enhanced {
    animation: pulse-enhanced 1.5s ease-in-out infinite;
}

/* Form Loading Overlay */
.form-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: inherit;
    z-index: 10;
}

/* ==========================================================================
   ERROR STATE STYLES
   ========================================================================== */

/* Enhanced Form Field Error States */
.form-field-error {
    border: 2px solid #e53e3e !important;
    box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.1) !important;
    background-color: #fef5f5;
    animation: shake-enhanced 0.5s ease-in-out;
}

.form-field-error:focus {
    border-color: #e53e3e !important;
    box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.2) !important;
}

/* Error Icon for Form Fields */
.form-field-wrapper {
    position: relative;
}

.form-field-wrapper.has-error::after {
    content: '⚠';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #e53e3e;
    font-size: 16px;
    pointer-events: none;
}

/* Enhanced Error Messages */
.error-message-enhanced {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #e53e3e;
    font-size: 13px;
    margin-top: 6px;
    padding: 8px 12px;
    background: #fef5f5;
    border: 1px solid #fed7d7;
    border-radius: 6px;
    animation: slideDown-enhanced 0.3s ease-out;
}

.error-message-enhanced .error-icon {
    font-size: 14px;
    flex-shrink: 0;
}

/* ==========================================================================
   SUCCESS STATE STYLES
   ========================================================================== */

/* Enhanced Form Field Success States */
.form-field-success {
    border: 2px solid #38a169 !important;
    box-shadow: 0 0 0 3px rgba(56, 161, 105, 0.1) !important;
    background-color: #f0fff4;
}

.form-field-success:focus {
    border-color: #38a169 !important;
    box-shadow: 0 0 0 3px rgba(56, 161, 105, 0.2) !important;
}

/* Success Icon for Form Fields */
.form-field-wrapper.has-success::after {
    content: '✓';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #38a169;
    font-size: 16px;
    font-weight: bold;
    pointer-events: none;
}

/* Enhanced Success Messages */
.success-message-enhanced {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #2f855a;
    font-size: 13px;
    margin-top: 6px;
    padding: 8px 12px;
    background: #f0fff4;
    border: 1px solid #9ae6b4;
    border-radius: 6px;
    animation: slideDown-enhanced 0.3s ease-out;
}

.success-message-enhanced .success-icon {
    font-size: 14px;
    flex-shrink: 0;
}

/* ==========================================================================
   SMOOTH TRANSITION ANIMATIONS
   ========================================================================== */

/* Enhanced Form Transitions */
.form-enhanced {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-field-enhanced {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 14px;
    background: #ffffff;
}

.form-field-enhanced:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

.form-field-enhanced:hover:not(:focus) {
    border-color: #cbd5e0;
}

/* Button Transitions */
.btn-enhanced {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    border-radius: 8px;
    padding: 12px 24px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-enhanced:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

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

.btn-enhanced:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

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

/* Mobile Optimizations */
@media (max-width: 768px) {
    .popup-modal-enhanced {
        width: 95%;
        margin: 20px;
        max-height: 90vh;
    }

    .popup-header-enhanced {
        padding: 20px 20px 12px;
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }

    .popup-body-enhanced {
        padding: 0 20px 20px;
    }

    .popup-close-enhanced {
        top: 12px;
        right: 12px;
    }

    .form-field-enhanced {
        padding: 14px 16px;
        font-size: 16px;
        /* Prevents zoom on iOS */
    }

    .btn-enhanced {
        padding: 14px 24px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .popup-modal-enhanced {
        width: 100%;
        margin: 10px;
        border-radius: 8px;
    }

    .popup-header-enhanced {
        padding: 16px 16px 8px;
    }

    .popup-body-enhanced {
        padding: 0 16px 16px;
    }

    .popup-icon-enhanced {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    .popup-title-enhanced {
        font-size: 16px;
    }

    .popup-message-enhanced {
        font-size: 13px;
    }
}

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

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .popup-modal-enhanced {
        border: 3px solid #000000;
    }

    .form-field-enhanced {
        border-width: 3px;
    }

    .form-field-error {
        border-color: #000000 !important;
        background-color: #ffffff;
    }

    .form-field-success {
        border-color: #000000 !important;
        background-color: #ffffff;
    }

    .btn-enhanced {
        border: 2px solid #000000;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {

    .popup-backdrop-enhanced,
    .popup-modal-enhanced,
    .form-field-enhanced,
    .btn-enhanced,
    .spinner-enhanced,
    .pulse-loading-enhanced {
        animation: none !important;
        transition: none !important;
    }

    .btn-enhanced:hover:not(:disabled) {
        transform: none;
    }

    .form-field-enhanced:focus {
        transform: none;
    }
}

/* Focus Indicators */
.focus-enhanced:focus {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

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

/* ==========================================================================
   KEYFRAME ANIMATIONS
   ========================================================================== */

@keyframes spin-enhanced {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes pulse-enhanced {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes shake-enhanced {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-8px);
    }

    75% {
        transform: translateX(8px);
    }
}

@keyframes slideDown-enhanced {
    0% {
        opacity: 0;
        transform: translateY(-10px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn-enhanced {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes slideUp-enhanced {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Color Utilities */
.text-success-enhanced {
    color: #38a169 !important;
}

.text-error-enhanced {
    color: #e53e3e !important;
}

.text-warning-enhanced {
    color: #d69e2e !important;
}

.text-info-enhanced {
    color: #3182ce !important;
}

/* Background Utilities */
.bg-success-enhanced {
    background-color: #f0fff4 !important;
}

.bg-error-enhanced {
    background-color: #fef5f5 !important;
}

.bg-warning-enhanced {
    background-color: #fffaf0 !important;
}

.bg-info-enhanced {
    background-color: #ebf8ff !important;
}

/* Border Utilities */
.border-success-enhanced {
    border-color: #38a169 !important;
}

.border-error-enhanced {
    border-color: #e53e3e !important;
}

.border-warning-enhanced {
    border-color: #d69e2e !important;
}

.border-info-enhanced {
    border-color: #3182ce !important;
}

/* Animation Utilities */
.animate-fadeIn {
    animation: fadeIn-enhanced 0.3s ease-out;
}

.animate-slideUp {
    animation: slideUp-enhanced 0.3s ease-out;
}

.animate-slideDown {
    animation: slideDown-enhanced 0.3s ease-out;
}

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

@media print {

    .popup-backdrop-enhanced,
    .popup-modal-enhanced,
    .spinner-enhanced,
    .form-loading-overlay {
        display: none !important;
    }

    .form-field-enhanced {
        border: 1px solid #000000 !important;
        box-shadow: none !important;
        background: transparent !important;
    }
}

/* ======
====================================================================
   INTEGRATION WITH EXISTING COMPONENTS
   ========================================================================== */

/* Enhanced Auth Form Integration */
.auth-form .form-group input.form-field-enhanced {
    border: 2px solid #e2e8f0;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.auth-form .form-group input.form-field-enhanced:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Enhanced Auth Button Integration */
.auth-button.btn-enhanced {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 14px 20px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    width: 100%;
}

.auth-button.btn-enhanced:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.auth-button.btn-enhanced:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Enhanced Form Error Integration */
.auth-form .form-group .error-message-enhanced {
    margin-top: 4px;
    font-size: 0.8rem;
}

/* Enhanced Success Popup Integration */
.popup-enhanced {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    max-width: 400px;
    width: 90%;
}

/* Brand Form Enhancements */
.brand-form-container .form-group input.form-field-enhanced,
.brand-form-container .form-group textarea.form-field-enhanced,
.brand-form-container .form-group select.form-field-enhanced {
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    padding: 12px 16px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.brand-form-container .form-group input.form-field-enhanced:focus,
.brand-form-container .form-group textarea.form-field-enhanced:focus,
.brand-form-container .form-group select.form-field-enhanced:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Campaign Form Enhancements */
.create-campaign-form .form-group input.form-field-enhanced,
.create-campaign-form .form-group textarea.form-field-enhanced {
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    padding: 12px 16px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.create-campaign-form .form-group input.form-field-enhanced:focus,
.create-campaign-form .form-group textarea.form-field-enhanced:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ==========================================================================
   ENHANCED LOADING STATES FOR EXISTING BUTTONS
   ========================================================================== */

/* Brand Setup Button Loading */
.brand-setup-card button.btn-loading-enhanced {
    position: relative;
    pointer-events: none;
}

.brand-setup-card button.btn-loading-enhanced .btn-text {
    opacity: 0;
}

.brand-setup-card button.btn-loading-enhanced::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin-enhanced 0.8s linear infinite;
}

/* Campaign Button Loading */
.campaign-actions button.btn-loading-enhanced {
    position: relative;
    pointer-events: none;
}

.campaign-actions button.btn-loading-enhanced .btn-text {
    opacity: 0;
}

.campaign-actions button.btn-loading-enhanced::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin-enhanced 0.8s linear infinite;
}

/* AI Feature Button Loading */
.ai-feature-card button.btn-loading-enhanced {
    position: relative;
    pointer-events: none;
}

.ai-feature-card button.btn-loading-enhanced .btn-text {
    opacity: 0;
}

.ai-feature-card button.btn-loading-enhanced::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 18px;
    height: 18px;
    margin: -9px 0 0 -9px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin-enhanced 0.8s linear infinite;
}

/* ==========================================================================
   ENHANCED FORM VALIDATION STATES
   ========================================================================== */

/* Form Field Wrapper Enhancements */
.form-field-wrapper-enhanced {
    position: relative;
    display: block;
}

.form-field-wrapper-enhanced input,
.form-field-wrapper-enhanced textarea,
.form-field-wrapper-enhanced select {
    width: 100%;
    padding-right: 40px;
    /* Space for validation icon */
}

/* Validation Icons */
.form-field-wrapper-enhanced.has-error::after {
    content: '⚠';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #e53e3e;
    font-size: 16px;
    pointer-events: none;
    z-index: 2;
}

.form-field-wrapper-enhanced.has-success::after {
    content: '✓';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #38a169;
    font-size: 16px;
    font-weight: bold;
    pointer-events: none;
    z-index: 2;
}

/* For textarea fields, adjust icon position */
.form-field-wrapper-enhanced textarea+.validation-icon {
    top: 20px;
    transform: none;
}

/* ==========================================================================
   ENHANCED NOTIFICATION SYSTEM
   ========================================================================== */

/* Toast Notification Container */
.toast-container-enhanced {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    max-width: 400px;
    width: 100%;
    pointer-events: none;
}

/* Toast Notification */
.toast-enhanced {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    margin-bottom: 12px;
    padding: 16px;
    pointer-events: auto;
    position: relative;
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 4px solid #e0e0e0;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.toast-enhanced.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-enhanced.hide {
    transform: translateX(100%);
    opacity: 0;
}

/* Toast Types */
.toast-enhanced.success {
    border-left-color: #28a745;
}

.toast-enhanced.error {
    border-left-color: #dc3545;
}

.toast-enhanced.warning {
    border-left-color: #ffc107;
}

.toast-enhanced.info {
    border-left-color: #17a2b8;
}

/* Toast Icon */
.toast-icon-enhanced {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    flex-shrink: 0;
}

.toast-enhanced.success .toast-icon-enhanced {
    background: rgba(40, 167, 69, 0.1);
    color: #28a745;
}

.toast-enhanced.error .toast-icon-enhanced {
    background: rgba(220, 53, 69, 0.1);
    color: #dc3545;
}

.toast-enhanced.warning .toast-icon-enhanced {
    background: rgba(255, 193, 7, 0.1);
    color: #ffc107;
}

.toast-enhanced.info .toast-icon-enhanced {
    background: rgba(23, 162, 184, 0.1);
    color: #17a2b8;
}

/* Toast Content */
.toast-content-enhanced {
    flex: 1;
}

.toast-title-enhanced {
    font-weight: 600;
    color: #2d3748;
    margin: 0 0 4px 0;
    font-size: 14px;
}

.toast-message-enhanced {
    color: #718096;
    margin: 0;
    font-size: 13px;
    line-height: 1.4;
}

/* Toast Close Button */
.toast-close-enhanced {
    background: none;
    border: none;
    color: #718096;
    cursor: pointer;
    font-size: 16px;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.toast-close-enhanced:hover {
    background: rgba(0, 0, 0, 0.1);
    color: #2d3748;
}

/* ==========================================================================
   ENHANCED ACCESSIBILITY FEATURES
   ========================================================================== */

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000000;
    color: #ffffff;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 10001;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 6px;
}

/* Focus Trap for Modals */
.focus-trap {
    position: fixed;
    top: 0;
    left: 0;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

/* Announce for Screen Readers */
.sr-announce {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* ==========================================================================
   ENHANCED MOBILE OPTIMIZATIONS
   ========================================================================== */

@media (max-width: 768px) {

    /* Enhanced Mobile Form Fields */
    .form-field-enhanced {
        font-size: 16px;
        /* Prevents zoom on iOS */
        padding: 14px 16px;
    }

    /* Enhanced Mobile Buttons */
    .btn-enhanced {
        padding: 14px 20px;
        font-size: 16px;
        min-height: 48px;
        /* Touch target size */
    }

    /* Enhanced Mobile Popups */
    .popup-modal-enhanced {
        width: 95%;
        margin: 10px;
        max-height: 95vh;
    }

    /* Enhanced Mobile Toast */
    .toast-container-enhanced {
        left: 10px;
        right: 10px;
        top: 10px;
        max-width: none;
    }

    .toast-enhanced {
        margin-bottom: 8px;
        padding: 12px;
    }
}

@media (max-width: 480px) {

    /* Extra Small Mobile Optimizations */
    .form-field-enhanced {
        padding: 16px;
        font-size: 16px;
    }

    .btn-enhanced {
        padding: 16px 20px;
        font-size: 16px;
        min-height: 52px;
    }

    .popup-modal-enhanced {
        width: 100%;
        margin: 0;
        border-radius: 0;
        max-height: 100vh;
    }

    .toast-enhanced {
        padding: 10px;
        font-size: 13px;
    }
}

/* ==========================================================================
   DARK MODE SUPPORT (FUTURE ENHANCEMENT)
   ========================================================================== */

@media (prefers-color-scheme: dark) {
    .popup-modal-enhanced {
        background: #2d3748;
        color: #e2e8f0;
    }

    .popup-header-enhanced {
        border-bottom-color: #4a5568;
    }

    .popup-title-enhanced {
        color: #e2e8f0;
    }

    .popup-message-enhanced {
        color: #a0aec0;
    }

    .popup-close-enhanced {
        color: #a0aec0;
    }

    .popup-close-enhanced:hover {
        background: #4a5568;
        color: #e2e8f0;
    }

    .form-field-enhanced {
        background: #2d3748;
        border-color: #4a5568;
        color: #e2e8f0;
    }

    .form-field-enhanced:focus {
        border-color: #667eea;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
    }

    .toast-enhanced {
        background: #2d3748;
        color: #e2e8f0;
    }

    .toast-title-enhanced {
        color: #e2e8f0;
    }

    .toast-message-enhanced {
        color: #a0aec0;
    }
}

/* ==========================================================================
   FORM VALIDATION STYLES
   ========================================================================== */

/* Form Error Highlighting */
.form-error {
    border: 2px solid #dc3545 !important;
    background-color: #fff5f5 !important;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25) !important;
    animation: shake 0.5s ease-in-out;
}

.form-error:focus {
    border-color: #dc3545 !important;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25) !important;
}

/* Shake animation for validation errors */
@keyframes shake {

    0%,
    20%,
    40%,
    60%,
    80% {
        transform: translateX(0);
    }

    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-5px);
    }
}

/* Error message styling */
.validation-error-message {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.validation-error-message::before {
    content: "⚠️";
    font-size: 0.75rem;
}

/* Success state styling */
.form-success {
    border: 2px solid #28a745 !important;
    background-color: #f8fff9 !important;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25) !important;
}

/* Campaign form specific styles */
.campaign-form .form-group {
    margin-bottom: 1rem;
    position: relative;
}

.campaign-form .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

.campaign-form input,
.campaign-form select,
.campaign-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.campaign-form input:focus,
.campaign-form select:focus,
.campaign-form textarea:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Loading state for campaign actions */
.campaign-actions .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    position: relative;
}

.campaign-actions .btn:disabled::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* ======
====================================================================
   ENHANCED DASHBOARD COMPONENTS
   ========================================================================== */

/* Modern Dashboard Header */
.dashboard-header-modern {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-800) 100%);
    color: white;
    padding: var(--space-8) var(--space-6);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--space-8);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.dashboard-header-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.dashboard-header-modern>* {
    position: relative;
    z-index: 1;
}

.dashboard-title-modern {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.dashboard-subtitle-modern {
    font-size: 1.125rem;
    opacity: 0.9;
    font-weight: 400;
}

@media (min-width: 768px) {
    .dashboard-title-modern {
        font-size: 2.5rem;
    }

    .dashboard-subtitle-modern {
        font-size: 1.25rem;
    }
}

/* Modern Search Component */
.search-modern {
    position: relative;
    display: flex;
    align-items: center;
    background: white;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-xl);
    padding: var(--space-2);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.search-modern:focus-within {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100), var(--shadow-md);
}

.search-input-modern {
    flex: 1;
    border: none;
    outline: none;
    padding: var(--space-2) var(--space-4);
    font-size: 1rem;
    background: transparent;
}

.search-input-modern::placeholder {
    color: var(--gray-400);
}

.search-button-modern {
    background: var(--primary-600);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.search-button-modern:hover {
    background: var(--primary-700);
    transform: translateY(-1px);
}

/* Modern Filter Component */
.filter-modern {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
}

.filter-header-modern {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.filter-title-modern {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
}

.filter-toggle-modern {
    background: none;
    border: none;
    color: var(--primary-600);
    cursor: pointer;
    font-weight: 500;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.filter-toggle-modern:hover {
    background: var(--primary-50);
}

.filter-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

/* Modern Stats Component */
.stats-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

.stat-card-modern {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    text-align: center;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

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

.stat-value-modern {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}

.stat-label-modern {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-change-modern {
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: var(--space-1);
}

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

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

/* Modern Badge System */
.badge-modern {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-xl);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary {
    background: var(--primary-100);
    color: var(--primary-700);
}

.badge-success {
    background: var(--success-100);
    color: var(--success-700);
}

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

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

.badge-gray {
    background: var(--gray-100);
    color: var(--gray-700);
}

/* Modern Progress Component */
.progress-modern {
    background: var(--gray-200);
    border-radius: var(--radius-xl);
    height: 8px;
    overflow: hidden;
}

.progress-bar-modern {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-500), var(--primary-600));
    border-radius: var(--radius-xl);
    transition: width var(--transition-normal);
}

.progress-success .progress-bar-modern {
    background: linear-gradient(90deg, var(--success-500), var(--success-600));
}

.progress-warning .progress-bar-modern {
    background: linear-gradient(90deg, var(--warning-500), var(--warning-600));
}

.progress-error .progress-bar-modern {
    background: linear-gradient(90deg, var(--error-500), var(--error-600));
}

/* Modern Avatar Component */
.avatar-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gray-200);
    color: var(--gray-600);
    font-weight: 500;
    overflow: hidden;
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
}

.avatar-md {
    width: 40px;
    height: 40px;
    font-size: 0.875rem;
}

.avatar-lg {
    width: 48px;
    height: 48px;
    font-size: 1rem;
}

.avatar-xl {
    width: 64px;
    height: 64px;
    font-size: 1.25rem;
}

/* Modern Table Component */
.table-modern {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-modern th {
    background: var(--gray-50);
    padding: var(--space-4);
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--gray-200);
}

.table-modern td {
    padding: var(--space-4);
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-900);
}

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

.table-modern tr:last-child td {
    border-bottom: none;
}

/* Modern Dropdown Component */
.dropdown-modern {
    position: relative;
    display: inline-block;
}

.dropdown-trigger-modern {
    background: white;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: all var(--transition-fast);
}

.dropdown-trigger-modern:hover {
    border-color: var(--gray-400);
}

.dropdown-menu-modern {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 50;
    margin-top: var(--space-1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.dropdown-modern.open .dropdown-menu-modern {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item-modern {
    padding: var(--space-3) var(--space-4);
    cursor: pointer;
    transition: background var(--transition-fast);
    border-bottom: 1px solid var(--gray-100);
}

.dropdown-item-modern:hover {
    background: var(--gray-50);
}

.dropdown-item-modern:last-child {
    border-bottom: none;
}

/* Modern Tabs Component */
.tabs-modern {
    border-bottom: 1px solid var(--gray-200);
}

.tab-list-modern {
    display: flex;
    gap: var(--space-1);
    margin-bottom: -1px;
}

.tab-modern {
    padding: var(--space-3) var(--space-4);
    border: none;
    background: none;
    cursor: pointer;
    font-weight: 500;
    color: var(--gray-600);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.tab-modern:hover {
    color: var(--gray-900);
    background: var(--gray-50);
}

.tab-modern.active {
    color: var(--primary-600);
    border-bottom-color: var(--primary-600);
    background: white;
}

.tab-panel-modern {
    padding: var(--space-6) 0;
}

/* Modern Modal System */
.modal-backdrop-modern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

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

.modal-modern {
    background: white;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: all var(--transition-normal);
    position: relative;
}

.modal-backdrop-modern.show .modal-modern {
    transform: scale(1) translateY(0);
}

.modal-header-modern {
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title-modern {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
}

.modal-close-modern {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray-400);
    padding: var(--space-2);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

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

.modal-body-modern {
    padding: var(--space-6);
    overflow-y: auto;
}

.modal-footer-modern {
    padding: var(--space-6);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
}

/* Modern Sidebar Component */
.sidebar-modern {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    height: fit-content;
    position: sticky;
    top: var(--space-6);
}

.sidebar-title-modern {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
}

.sidebar-nav-modern {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.sidebar-link-modern {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    color: var(--gray-600);
    text-decoration: none;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.sidebar-link-modern:hover {
    background: var(--gray-50);
    color: var(--gray-900);
}

.sidebar-link-modern.active {
    background: var(--primary-50);
    color: var(--primary-700);
}

/* Modern Tooltip Component */
.tooltip-modern {
    position: relative;
    display: inline-block;
}

.tooltip-content-modern {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gray-900);
    color: white;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    margin-bottom: var(--space-2);
    z-index: 100;
}

.tooltip-content-modern::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 4px solid transparent;
    border-top-color: var(--gray-900);
}

.tooltip-modern:hover .tooltip-content-modern {
    opacity: 1;
    visibility: visible;
}

/* ==========================================================================
   ENHANCED MOBILE OPTIMIZATIONS
   ========================================================================== */

@media (max-width: 640px) {
    .dashboard-header-modern {
        padding: var(--space-6) var(--space-4);
        text-align: center;
    }

    .dashboard-title-modern {
        font-size: 1.5rem;
    }

    .dashboard-subtitle-modern {
        font-size: 1rem;
    }

    .search-modern {
        flex-direction: column;
        gap: var(--space-2);
    }

    .search-button-modern {
        width: 100%;
        justify-content: center;
    }

    .filter-grid-modern {
        grid-template-columns: 1fr;
    }

    .stats-modern {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal-modern {
        margin: var(--space-4);
        max-height: calc(100vh - 2rem);
    }

    .modal-header-modern,
    .modal-body-modern,
    .modal-footer-modern {
        padding: var(--space-4);
    }

    .modal-footer-modern {
        flex-direction: column;
    }

    .table-modern {
        font-size: 0.875rem;
    }

    .table-modern th,
    .table-modern td {
        padding: var(--space-3);
    }
}

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

@media print {

    .modal-backdrop-modern,
    .notification-container-modern,
    .tooltip-content-modern {
        display: none !important;
    }

    .card-modern {
        box-shadow: none !important;
        border: 1px solid var(--gray-400) !important;
    }

    .btn-modern {
        border: 1px solid var(--gray-400) !important;
        box-shadow: none !important;
    }
}

/* ==========================================================================
   DARK MODE SUPPORT (FUTURE ENHANCEMENT)
   ========================================================================== */

@media (prefers-color-scheme: dark) {
    :root {
        --gray-50: #1f2937;
        --gray-100: #374151;
        --gray-200: #4b5563;
        --gray-300: #6b7280;
        --gray-400: #9ca3af;
        --gray-500: #d1d5db;
        --gray-600: #e5e7eb;
        --gray-700: #f3f4f6;
        --gray-800: #f9fafb;
        --gray-900: #ffffff;
    }

    .card-modern {
        background: var(--gray-50);
        border-color: var(--gray-700);
    }

    .form-input-modern,
    .form-select-modern,
    .form-textarea-modern {
        background: var(--gray-800);
        border-color: var(--gray-700);
        color: var(--gray-100);
    }

    .notification-modern {
        background: var(--gray-800);
        border-color: var(--gray-700);
    }

    .modal-modern {
        background: var(--gray-800);
    }

    .table-modern {
        background: var(--gray-800);
    }

    .table-modern th {
        background: var(--gray-700);
    }
}

/* Analytics Dashboard Styles */ .analytics-dashboard {
    padding: 20px;
}

.analytics-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #e9ecef;
}

.analytics-header h2 {
    margin: 0;
    color: #2c3e50;
}

.analytics-header p {
    margin: 5px 0 0 0;
    color: #6c757d;
}

.header-actions {
    display: flex;
    gap: 10px;
}

.metrics-overview {
    margin-bottom: 30px;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.metric-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #007bff;
}

.metric-value {
    font-size: 2rem;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 5px;
}

.metric-label {
    font-size: 0.9rem;
    color: #6c757d;
    margin-bottom: 10px;
}

.metric-change {
    font-size: 0.8rem;
    font-weight: 500;
}

.metric-change.positive {
    color: #28a745;
}

.metric-change.negative {
    color: #dc3545;
}

.metric-change.neutral {
    color: #6c757d;
}

.analytics-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.charts-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.chart-container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    height: 400px;
}

.chart-container h3 {
    margin: 0 0 20px 0;
    color: #2c3e50;
    font-size: 1.1rem;
}

.chart-container canvas {
    max-height: 300px;
}

.data-tables-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.table-container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.table-container h3 {
    margin: 0 0 20px 0;
    color: #2c3e50;
    font-size: 1.1rem;
}

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

.data-table th,
.data-table td {
    padding: 12px 8px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.data-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #495057;
    font-size: 0.9rem;
}

.data-table td {
    font-size: 0.9rem;
}

.status-badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
}

.status-active {
    background-color: #d4edda;
    color: #155724;
}

.status-completed {
    background-color: #cce7ff;
    color: #004085;
}

.status-draft {
    background-color: #fff3cd;
    color: #856404;
}

.status-unknown {
    background-color: #f8f9fa;
    color: #6c757d;
}

.success-rate-bar {
    position: relative;
    width: 100px;
    height: 20px;
    background-color: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
}

.success-rate-fill {
    height: 100%;
    background-color: #28a745;
    transition: width 0.3s ease;
}

.success-rate-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.75rem;
    font-weight: 500;
    color: #2c3e50;
}

/* Error and Empty States */
.chart-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 300px;
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    text-align: center;
}

.chart-error i {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.chart-error h4 {
    margin: 0 0 0.5rem 0;
    color: #856404;
}

.chart-fallback {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

.chart-fallback h4 {
    margin: 0 0 1rem 0;
    color: #495057;
}

.fallback-data {
    max-height: 200px;
    overflow-y: auto;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
    color: #6c757d;
    min-height: 200px;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h4 {
    margin: 0 0 0.5rem 0;
    color: #495057;
}

.empty-state p {
    margin: 0.25rem 0;
}

.text-muted {
    color: #6c757d !important;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .analytics-content {
        grid-template-columns: 1fr;
    }

    .charts-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .analytics-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .header-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .chart-container {
        height: 300px;
    }

    .data-table {
        overflow-x: auto;
    }

    .success-rate-bar {
        width: 80px;
    }
}

@media (max-width: 480px) {
    .analytics-dashboard {
        padding: 10px;
    }

    .metric-card {
        padding: 15px;
    }

    .metric-value {
        font-size: 1.5rem;
    }

    .chart-container {
        padding: 15px;
        height: 250px;
    }

    .table-container {
        padding: 15px;
    }

    .data-table th,
    .data-table td {
        padding: 8px 4px;
        font-size: 0.8rem;
    }
}