/* CivilsPrep Evaluation Platform - Complete CSS Styles */

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

:root {
    /* Primary Colors */
    --primary: #ff914d;
    --primary-dark: #e8823d;
    --primary-light: #ffb373;
    
    /* Neutral Colors */
    --white: #ffffff;
    --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;
    
    /* Status Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --error: #ef4444;
    --error-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* 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-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    /* Layout */
    --sidebar-width: 280px;
    --header-height: 64px;
    --bottom-nav-height: 64px;
    
    /* Responsive breakpoints */
    --mobile: 480px;
    --tablet: 768px;
    --desktop: 1024px;
    --wide: 1200px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 500ms ease;
}

/* Base HTML and Body */
html {
    font-size: 16px;
    line-height: 1.5;
}

body {
    font-family: var(--font-family);
    color: var(--gray-800);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    margin-bottom: var(--space-sm);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-md); }
h6 { font-size: var(--font-size-sm); }

p {
    margin-bottom: var(--space-md);
    color: var(--gray-600);
}

/* Utility Classes */
.hidden { display: none !important; }
.active { display: block !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }

/* Screen Management */
.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* Login Screen Specific */
.login-screen {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    position: relative;
    overflow-x: hidden;
}

.login-screen.active {
    display: flex !important;
}

/* Dashboard Screen Specific */
.dashboard-screen {
    display: none;
    min-height: 100vh;
}

.dashboard-screen.active {
    display: block !important;
}

/* Fix accent color for background gradient */
:root {
    --accent: #ffb373;
}

/* Fix responsive login screen overlap */
.login-screen {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%) !important;
}

.dashboard-screen.active {
    display: block !important;
}
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-sm); }
.gap-4 { gap: var(--space-md); }
.mb-4 { margin-bottom: var(--space-md); }
.mt-4 { margin-top: var(--space-md); }
.text-center { text-align: center; }

/* Responsive Utility Classes */
.mobile-only { display: block; }
.tablet-only { display: none; }
.desktop-only { display: none; }

@media (min-width: 768px) {
    .mobile-only { display: none; }
    .tablet-only { display: block; }
    .desktop-only { display: none; }
}

@media (min-width: 1024px) {
    .mobile-only { display: none; }
    .tablet-only { display: none; }
    .desktop-only { display: block; }
}

/* ========================================
   RESPONSIVE DESIGN - COMPLETE SOLUTION
   ======================================== */

/* Mobile First - Base Styles (up to 767px) */
.container {
    width: 100%;
    max-width: 100%;
    padding: var(--space-md);
    margin: 0 auto;
}

/* Login Screen Responsive */
.login-screen {
    padding: var(--space-md);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.login-header h1 {
    font-size: var(--font-size-2xl);
}

.demo-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

/* Main App Layout Responsive */
.app-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.sidebar {
    width: 100%;
    height: auto;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 1000;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    padding: var(--space-sm);
    box-shadow: var(--shadow-lg);
}

.sidebar-menu {
    display: flex;
    flex-direction: row;
    gap: 0;
    width: 100%;
    justify-content: space-around;
}

.sidebar-menu .menu-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-sm);
    font-size: var(--font-size-xs);
    text-align: center;
    min-width: 60px;
}

.sidebar-menu .menu-item i {
    font-size: 1.2rem;
    margin-bottom: var(--space-xs);
}

.sidebar-menu .menu-item span {
    font-size: var(--font-size-xs);
    line-height: 1.2;
}

.main-content {
    flex: 1;
    padding: var(--space-md);
    padding-bottom: calc(var(--bottom-nav-height) + var(--space-md));
    margin-left: 0;
}

.dashboard-header {
    margin-bottom: var(--space-lg);
}

.dashboard-header h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-xs);
}

/* Stats Grid Responsive */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.stat-card {
    padding: var(--space-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary);
}

.stat-card h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--space-xs);
}

.stat-card p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin: 0;
}

/* Tables Responsive */
.table-container {
    overflow-x: auto;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-lg);
}

.responsive-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.responsive-table th,
.responsive-table td {
    padding: var(--space-sm);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.responsive-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
}

/* Cards Responsive */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-bottom: var(--space-lg);
}

.card-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.card-header h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    color: var(--gray-800);
}

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

/* Forms Responsive */
.form {
    width: 100%;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 145, 77, 0.1);
}

/* Buttons Responsive */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
    line-height: 1.5;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

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

.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-full {
    width: 100%;
}

.btn-sm {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-xs);
}

/* Modal Responsive */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-body {
    padding: var(--space-lg);
}

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

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-width: 300px;
}

.toast {
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    animation: slideInRight 0.3s ease;
}

.toast.success {
    border-left: 4px solid var(--success);
}

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

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

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Tablet Styles (768px and up) */
@media (min-width: 768px) {
    .container {
        max-width: 720px;
        padding: var(--space-lg);
    }

    .login-header h1 {
        font-size: var(--font-size-3xl);
    }

    .demo-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: var(--sidebar-width);
        height: 100vh;
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--space-lg);
        border-top: none;
        border-right: 1px solid var(--gray-200);
    }

    .sidebar-menu {
        flex-direction: column;
        gap: var(--space-sm);
        width: 100%;
        justify-content: flex-start;
    }

    .sidebar-menu .menu-item {
        flex-direction: row;
        text-align: left;
        padding: var(--space-md);
        border-radius: var(--radius-md);
        transition: var(--transition-fast);
        min-width: auto;
    }

    .sidebar-menu .menu-item:hover {
        background: var(--gray-100);
    }

    .sidebar-menu .menu-item.active {
        background: var(--primary-light);
        color: var(--primary-dark);
    }

    .sidebar-menu .menu-item i {
        font-size: 1.25rem;
        margin-bottom: 0;
        margin-right: var(--space-md);
    }

    .sidebar-menu .menu-item span {
        font-size: var(--font-size-md);
    }

    .main-content {
        margin-left: var(--sidebar-width);
        padding: var(--space-xl);
        padding-bottom: var(--space-xl);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
    }

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

    .dashboard-header h2 {
        font-size: var(--font-size-2xl);
    }
}

/* Desktop Styles (1024px and up) */
@media (min-width: 1024px) {
    .container {
        max-width: 960px;
    }

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

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

    .responsive-table {
        font-size: var(--font-size-md);
    }

    .responsive-table th,
    .responsive-table td {
        padding: var(--space-md);
    }

    .toast-container {
        max-width: 400px;
    }

    .dashboard-header h2 {
        font-size: var(--font-size-3xl);
    }
}

/* Wide Desktop Styles (1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }

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

    .main-content {
        padding: var(--space-2xl);
    }
}

/* Enhanced Responsive Design for All Screen Sizes */

/* Extra Small Devices (Phones, 320px to 480px) */
@media (max-width: 480px) {
    .login-container {
        margin: var(--space-sm);
        padding: var(--space-lg);
        min-height: calc(100vh - 2rem);
    }
    
    .demo-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .demo-account {
        flex-direction: row;
        text-align: left;
        justify-content: flex-start;
        padding: var(--space-md);
    }
    
    .demo-account i {
        margin-right: var(--space-sm);
        font-size: 1.2rem;
    }
    
    .demo-account span {
        font-size: var(--font-size-sm);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }
    
    .stat-card {
        padding: var(--space-md);
        text-align: center;
    }
    
    .main-content {
        padding: var(--space-sm);
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px; /* Prevent zoom on iOS */
    }
    
    .btn {
        padding: var(--space-md);
        font-size: var(--font-size-base);
    }
}

/* Small Devices (Large phones, 481px to 768px) */
@media (min-width: 481px) and (max-width: 768px) {
    .login-container {
        margin: var(--space-lg);
        padding: var(--space-xl);
        max-width: 420px;
    }
    
    .demo-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
    
    .demo-account {
        flex-direction: column;
        text-align: center;
        padding: var(--space-lg);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
    
    .main-content {
        padding: var(--space-lg);
    }
}

/* Medium Devices (Tablets, 769px to 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .login-container {
        max-width: 450px;
        padding: var(--space-2xl);
    }
    
    .demo-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-lg);
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-lg);
    }
    
    .main-content {
        padding: var(--space-xl);
    }
    
    .sidebar {
        width: 240px;
    }
}

/* Large Devices (Desktops, 1025px to 1440px) */
@media (min-width: 1025px) and (max-width: 1440px) {
    .login-container {
        max-width: 480px;
        padding: var(--space-2xl);
    }
    
    .demo-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-lg);
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-lg);
    }
    
    .sidebar {
        width: 260px;
    }
}

/* Extra Large Devices (Large desktops, 1441px and up) */
@media (min-width: 1441px) {
    .container {
        max-width: 1400px;
    }
    
    .login-container {
        max-width: 500px;
        padding: var(--space-3xl);
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-xl);
    }
    
    .sidebar {
        width: 280px;
    }
}

/* Portrait and Landscape Orientations */
@media (max-width: 768px) and (orientation: landscape) {
    .login-screen {
        padding: var(--space-sm);
        min-height: 100vh;
    }
    
    .login-container {
        margin: var(--space-sm);
        padding: var(--space-lg);
        max-height: 90vh;
        overflow-y: auto;
    }
    
    .demo-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-sm);
    }
    
    .demo-account {
        padding: var(--space-sm);
    }
}

/* High DPI and Retina Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .login-container {
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-xl);
    }
    
    .demo-account {
        border-width: 1px;
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn, .demo-account {
        min-height: 44px; /* Apple's minimum touch target */
        padding: var(--space-md);
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        min-height: 44px;
        font-size: 16px; /* Prevent zoom on iOS */
    }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Additional Mobile Safari Fixes */
@supports (-webkit-touch-callout: none) {
    .login-screen {
        min-height: -webkit-fill-available;
    }
    
    .dashboard-screen {
        min-height: -webkit-fill-available;
    }
}

/* iOS viewport height fix */
@media screen and (max-device-width: 812px) {
    .login-screen,
    .dashboard-screen {
        min-height: calc(100vh - env(safe-area-inset-bottom));
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* Final Responsive Enhancement: Ultra-wide screens */
@media (min-width: 1441px) {
    .container, .login-container {
        max-width: 1400px;
        margin: 0 auto;
    }
    
    .dashboard-grid {
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
        gap: var(--space-xl);
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .toast-container,
    .loading-overlay {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }

    .btn {
        display: none !important;
    }
}
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.text-sm { font-size: var(--font-size-sm); }
.text-lg { font-size: var(--font-size-lg); }

/* Mobile-First Responsive Utilities */
.mobile-only { display: block; }
.desktop-only { display: none; }

@media (min-width: 768px) {
    .mobile-only { display: none; }
    .desktop-only { display: block; }
}

/* Focus States for Better Accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.demo-account:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

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

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

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

.card, .stat-card {
    animation: fadeIn 0.3s ease-out;
}

.loading-state {
    animation: fadeIn 0.3s ease-out;
}

.toast {
    animation: slideInUp 0.3s ease-out;
}

/* Better Button States */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    transform: translateY(1px);
}

/* Loading Button State */
.btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.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 1s linear infinite;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    text-align: center;
    color: var(--gray-600);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Loading and Empty States */
.loading-state {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    color: var(--gray-600);
}

.loading-state i {
    font-size: 2rem;
    margin-bottom: var(--space-md);
    color: var(--primary);
}

.loading-state p {
    margin: 0;
    font-size: var(--font-size-md);
}

.empty-state {
    text-align: center;
    padding: var(--space-2xl) var(--space-md);
    color: var(--gray-500);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
    color: var(--gray-400);
}

.empty-state h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--gray-700);
}

.empty-state p {
    margin: 0;
    font-size: var(--font-size-md);
    color: var(--gray-500);
}

.error-state {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    color: var(--error);
    background: var(--error-light);
    border-radius: var(--radius-md);
    border: 1px solid var(--error);
    margin: var(--space-md);
}

.error-state i {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.error-state h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.error-state p {
    margin: 0;
    font-size: var(--font-size-sm);
}

.retry-btn {
    margin-top: var(--space-md);
    background: var(--error);
    color: white;
    border: none;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.retry-btn:hover {
    background: #dc2626;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 9998;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--space-md);
    min-width: 300px;
    max-width: 400px;
    border-left: 4px solid;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transform: translateX(100%);
    animation: slideIn var(--transition-normal) ease forwards;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--error); }
.toast.warning { border-left-color: var(--warning); }
.toast.info { border-left-color: var(--info); }

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xs);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin: 0;
}

.toast-close {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: var(--gray-600);
}

@keyframes slideIn {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
    border-color: #dc2626;
}

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

.btn-success:hover:not(:disabled) {
    background: #059669;
    border-color: #059669;
}

.btn-sm {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: 12px 24px;
    font-size: var(--font-size-lg);
}

.btn-full {
    width: 100%;
}

.btn-icon-only {
    padding: var(--space-sm);
    width: auto;
    height: auto;
}

/* Forms */
.form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

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

.form-group label {
    font-weight: 500;
    color: var(--gray-700);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    transition: all var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 145, 77, 0.1);
}

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

.form-error {
    color: var(--error);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
    display: none;
    font-weight: 500;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Login Screen */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    padding: var(--space-lg);
}

.login-container {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-2xl);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.login-header .logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.login-header .logo i {
    font-size: 2rem;
    color: var(--primary);
}

.login-header h1 {
    color: var(--gray-800);
    margin: 0;
}

.tagline {
    color: var(--gray-600);
    margin: 0;
}

.demo-accounts {
    margin-top: var(--space-2xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--gray-200);
}

.demo-accounts h3 {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    text-align: center;
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.demo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}

.demo-account {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.demo-account:hover {
    border-color: var(--primary);
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.demo-account:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.demo-account i {
    font-size: 1.5rem;
    color: var(--primary);
}

.demo-account span {
    font-size: var(--font-size-sm);
    color: var(--gray-700);
    font-weight: 600;
    text-align: center;
}

/* Dashboard Layout */
.dashboard-screen {
    display: none;
    min-height: 100vh;
    background: var(--gray-50);
}

.dashboard-screen.active {
    display: grid;
    grid-template-areas: 
        "sidebar content"
        "sidebar content";
    grid-template-columns: var(--sidebar-width) 1fr;
    grid-template-rows: 1fr;
}

/* Mobile Layout */
@media (max-width: 767px) {
    .dashboard-screen.active {
        display: flex;
        flex-direction: column;
        grid-template-areas: none;
        grid-template-columns: none;
        grid-template-rows: none;
    }
}

/* Sidebar */
.sidebar {
    grid-area: sidebar;
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    z-index: 100;
}

.sidebar-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--gray-200);
}

.sidebar-header .logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.sidebar-header .logo i {
    font-size: var(--font-size-xl);
    color: var(--primary);
}

.sidebar-header .logo span {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-800);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
}

.user-details {
    flex: 1;
}

.user-details .user-name {
    font-weight: 600;
    color: var(--gray-800);
    margin: 0;
    font-size: var(--font-size-sm);
}

.user-details .user-role {
    color: var(--gray-500);
    margin: 0;
    font-size: var(--font-size-xs);
    text-transform: capitalize;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: var(--space-md) 0;
    overflow-y: auto;
}

.nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-item {
    margin: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    color: var(--gray-600);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.nav-link:hover {
    background: var(--gray-50);
    color: var(--primary);
}

.nav-link.active {
    background: var(--primary-light);
    color: var(--primary-dark);
    border-right: 3px solid var(--primary);
}

.nav-link i {
    width: 20px;
    text-align: center;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--gray-200);
}

.logout-btn {
    width: 100%;
    background: none;
    border: 1px solid var(--gray-300);
    color: var(--gray-600);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
}

.logout-btn:hover {
    background: var(--error-light);
    color: var(--error);
    border-color: var(--error);
}

/* Main Content */
.main-content {
    grid-area: content;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top Header */
.top-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 0 var(--space-lg);
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 90;
}

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

.mobile-menu-toggle {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    display: none;
}

.mobile-menu-toggle:hover {
    background: var(--gray-100);
}

.page-title {
    margin: 0;
    color: var(--gray-800);
}

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

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

.refresh-btn {
    background: none;
    border: 1px solid var(--gray-300);
    color: var(--gray-600);
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.refresh-btn:hover {
    background: var(--gray-50);
    color: var(--primary);
    border-color: var(--primary);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.user-menu .user-name {
    font-weight: 500;
    color: var(--gray-700);
    font-size: var(--font-size-sm);
}

/* Content Area */
.content-area {
    flex: 1;
    padding: var(--space-lg);
    overflow-y: auto;
}

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

.card-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.card-title {
    margin: 0;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.card-content {
    padding: var(--space-lg);
}

.card-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    text-align: center;
    transition: transform var(--transition-fast);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    margin: 0 auto var(--space-md);
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--space-xs);
}

.stat-label {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* Tables */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
}

.table th,
.table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table td {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

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

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

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

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

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

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

.badge-gray {
    background: var(--gray-200);
    color: var(--gray-600);
}

/* Mobile Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    height: var(--bottom-nav-height);
    display: none;
    z-index: 100;
}

.bottom-nav-menu {
    display: flex;
    height: 100%;
    list-style: none;
    margin: 0;
    padding: 0;
}

.bottom-nav-item {
    flex: 1;
    display: flex;
}

.bottom-nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: var(--space-sm);
    color: var(--gray-500);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-size: var(--font-size-xs);
    width: 100%;
}

.bottom-nav-link:hover,
.bottom-nav-link.active {
    color: var(--primary);
}

.bottom-nav-link i {
    font-size: var(--font-size-lg);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    max-width: 90vw;
    max-height: 90vh;
    width: 500px;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

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

.modal-title {
    margin: 0;
    color: var(--gray-800);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    color: var(--gray-400);
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
}

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

.modal-body {
    padding: var(--space-lg);
    max-height: 60vh;
    overflow-y: auto;
}

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

/* File Upload */
.file-upload {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    background: var(--gray-50);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.file-upload:hover,
.file-upload.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.file-upload input[type="file"] {
    display: none;
}

.file-upload-icon {
    font-size: var(--font-size-3xl);
    color: var(--gray-400);
    margin-bottom: var(--space-md);
}

.file-upload-text {
    color: var(--gray-600);
    margin-bottom: var(--space-sm);
}

.file-upload-hint {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin: 0;
}

/* Progress Bar */
.progress {
    background: var(--gray-200);
    border-radius: var(--radius-md);
    height: 8px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--primary);
    border-radius: var(--radius-md);
    transition: width var(--transition-normal);
}

/* Responsive Design */
@media (max-width: 767px) {
    /* Mobile Layout Adjustments */
    :root {
        --space-lg: 1rem;
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
    }
    
    .login-container {
        padding: var(--space-xl);
        margin: var(--space-md);
    }
    
    .demo-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .demo-account {
        flex-direction: row;
        justify-content: flex-start;
        text-align: left;
    }
    
    /* Hide desktop sidebar */
    .sidebar.desktop-nav {
        display: none;
    }
    
    /* Show mobile navigation */
    .bottom-nav.mobile-nav {
        display: block;
    }
    
    /* Adjust main content */
    .main-content {
        margin-left: 0;
        padding-bottom: var(--bottom-nav-height);
    }
    
    /* Show mobile menu toggle */
    .mobile-menu-toggle {
        display: block;
    }
    
    /* Adjust content area */
    .content-area {
        padding: var(--space-md);
    }
    
    /* Adjust stats grid */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
    
    /* Adjust cards */
    .card-header,
    .card-content,
    .card-footer {
        padding: var(--space-md);
    }
    
    /* Adjust tables */
    .table th,
    .table td {
        padding: var(--space-sm);
    }
    
    /* Adjust modals */
    .modal {
        width: 95vw;
        margin: var(--space-md);
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: var(--space-md);
    }
    
    /* Adjust toast container */
    .toast-container {
        top: var(--space-md);
        right: var(--space-md);
        left: var(--space-md);
    }
    
    .toast {
        min-width: auto;
    }
}

/* Extra small devices */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        font-size: var(--font-size-sm);
    }
    
    .btn {
        padding: 10px 16px;
        font-size: var(--font-size-sm);
    }
    
    .btn-sm {
        padding: 6px 10px;
        font-size: var(--font-size-xs);
    }
}