/* ===================================
   RESPOS SAAS - MAIN STYLESHEET
   Modern Restaurant POS & Admin System
   =================================== */

/* ===================================
   CSS VARIABLES & THEME
   =================================== */
:root {
    /* Color Palette */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #1e293b;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-light: #ffffff;
    
    /* Border Colors */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-dark: #94a3b8;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===================================
   THEME TOGGLE STYLES
   =================================== */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.theme-toggle:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.theme-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
}

.theme-toggle i {
    font-size: 1.2rem;
}

/* Hide theme toggle on login/register pages */
body.login-page .theme-toggle,
body.register-page .theme-toggle {
    display: none;
}

/* ===================================
   GLOBAL STYLES & RESET
   =================================== */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

/* ===================================
   LAYOUT COMPONENTS
   =================================== */

/* Main Container */
.main-container {
    min-height: 100vh;
    background: var(--bg-secondary);
}

/* Content Area */
.content-area {
    padding: var(--spacing-lg);
    background: transparent;
}

/* ===================================
   SIDEBAR STYLES
   =================================== */

/* Modern Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 280px;
    background: #1e3a8a; /* Dark blue background like in the image */
    color: white;
    z-index: 1000;
    box-shadow: var(--shadow-xl);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.sidebar-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sidebar-brand:hover {
    color: white;
    text-decoration: none;
}

.sidebar-nav {
    padding: var(--spacing-lg) 0;
}

.nav-section {
    margin-bottom: var(--spacing-xl);
}

.nav-section-title {
    padding: 0 var(--spacing-xl) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #9ca3af; /* Light grey color like in the image */
}

.nav-link {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    border-left-color: rgba(255, 255, 255, 0.3);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border-left-color: white;
}

.nav-link i {
    width: 20px;
    margin-right: var(--spacing-sm);
    font-size: 1rem;
}

/* Main Content */
.main-content {
    margin-left: 280px;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

/* Header */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.header-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

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

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
}

.logout-btn {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logout-btn:hover {
    background: #dc2626;
    color: white;
    text-decoration: none;
    transform: translateY(-1px);
}

/* ===================================
   TOP NAVIGATION
   =================================== */

.top-nav {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: var(--spacing-md) var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

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

.user-name {
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.user-role {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.btn-logout {
    background: linear-gradient(135deg, var(--danger-color) 0%, #dc2626 100%);
    border: none;
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-logout:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ===================================
   FORM CONTROLS
   =================================== */

.form-control, .form-select {
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    font-weight: 500;
    transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

/* ===================================
   MODERN BUTTONS
   =================================== */

.btn {
    border-radius: var(--radius-md);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-lg);
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #4338ca 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-success {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #059669 100%);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #d97706 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #dc2626 100%);
    color: white;
}

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

.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* ===================================
   NOTIFICATIONS
   =================================== */

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    max-width: 400px;
}

/* ===================================
   CUSTOM SCROLLBAR
   =================================== */

::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-dark);
}

/* Card Components */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

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

/* ===================================
   POS SYSTEM STYLES
   =================================== */

/* POS Container */
.pos-container {
    background: var(--bg-secondary);
    min-height: 100vh;
    padding: 0;
    margin: 0;
    position: relative;
}

.pos-system {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    height: calc(100vh - 120px);
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
}

/* Advanced POS Components */
.menu-item-card {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all 0.3s ease;
    height: 100%;
}

.menu-item-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
}

.menu-item-image {
    height: 120px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.placeholder-image {
    color: var(--text-muted);
    font-size: 2rem;
}

.menu-item-info h6 {
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.price {
    font-weight: bold;
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.order-summary {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

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

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

.quantity-btn {
    width: 25px;
    height: 25px;
    border: 1px solid var(--border-light);
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

/* Menu Section */
.menu-section {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    overflow-y: auto;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.pos-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.pos-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pos-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 0;
}

/* Search Bar */
.search-bar {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 3rem;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    outline: none;
    background: var(--bg-primary);
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Category Tabs */
.category-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
    padding-bottom: var(--spacing-sm);
}

.category-tab {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
    min-width: fit-content;
}

.category-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.category-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-light);
}

/* Menu Items Grid */
.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    flex: 1;
}

.menu-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.menu-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.menu-item-image {
    width: 100%;
    height: 120px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--text-muted);
    font-size: 2rem;
}

.menu-item-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs) 0;
}

.menu-item-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.menu-item-price {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.add-to-cart-btn {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-color);
    color: var(--text-light);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.add-to-cart-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.02);
}

/* Order Section */
.order-section {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    height: 100%;
}

.order-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.order-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.order-id {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.customer-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

/* Order Items */
.order-items {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: 400px;
}

.order-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-fast);
}

.order-item:hover {
    background: var(--bg-tertiary);
}

.order-item-info {
    flex: 1;
}

.order-item-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.order-item-price {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.quantity-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-light);
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 600;
}

.quantity-btn:hover {
    background: var(--primary-color);
    color: var(--text-light);
    border-color: var(--primary-color);
}

.quantity-display {
    min-width: 30px;
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
}

.remove-item-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--danger-color);
    color: var(--text-light);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.8rem;
    transition: var(--transition-fast);
}

.remove-item-btn:hover {
    background: #dc2626;
}

/* Order Summary */
.order-summary {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    background: var(--bg-tertiary);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.summary-row.total {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    border-top: 1px solid var(--border-light);
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.summary-label {
    color: var(--text-secondary);
}

.summary-value {
    font-weight: 600;
    color: var(--text-primary);
}

.summary-value.total {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

/* Payment Section */
.payment-section {
    margin-top: var(--spacing-lg);
}

.payment-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.payment-method {
    padding: var(--spacing-md);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
    background: var(--bg-primary);
}

.payment-method:hover {
    border-color: var(--primary-color);
}

.payment-method.selected {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: var(--text-light);
}

.payment-method i {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    display: block;
}

.payment-method span {
    font-size: 0.8rem;
    font-weight: 500;
}

/* Action Buttons */
.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.btn-primary {
    background: var(--primary-color);
    border: none;
    color: var(--text-light);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--text-secondary);
    border: none;
    color: var(--text-light);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-secondary:hover {
    background: var(--text-primary);
    transform: translateY(-1px);
}

/* ===================================
   QUICK ACTIONS DASHBOARD
   =================================== */

.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    padding: 1rem 0;
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 120px;
    padding: 1rem;
    border-radius: 12px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.quick-action-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.quick-action-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    color: white;
    text-decoration: none;
}

.quick-action-btn:hover::before {
    opacity: 1;
}

.quick-action-btn i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    z-index: 1;
    position: relative;
}

.quick-action-btn span {
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
    line-height: 1.2;
    z-index: 1;
    position: relative;
}

/* Gradient Button Styles */
.btn-primary-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.btn-primary-gradient:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

.btn-success-gradient {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.btn-success-gradient:hover {
    background: linear-gradient(135deg, #0f8a7f 0%, #2fd66c 100%);
}

.btn-info-gradient {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.btn-info-gradient:hover {
    background: linear-gradient(135deg, #3e9bed 0%, #00d8e5 100%);
}

.btn-warning-gradient {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.btn-warning-gradient:hover {
    background: linear-gradient(135deg, #e082ea 0%, #e4465b 100%);
}

.btn-secondary-gradient {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
}

.btn-secondary-gradient:hover {
    background: linear-gradient(135deg, #5a6268 0%, #343a40 100%);
}

.btn-dark-gradient {
    background: linear-gradient(135deg, #343a40 0%, #212529 100%);
}

.btn-dark-gradient:hover {
    background: linear-gradient(135deg, #2c3136 0%, #1a1d20 100%);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .quick-actions-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .quick-actions-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    
    .quick-action-btn {
        height: 100px;
        padding: 0.75rem;
    }
    
    .quick-action-btn i {
        font-size: 1.5rem;
        margin-bottom: 0.25rem;
    }
    
    .quick-action-btn span {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .quick-actions-grid {
        grid-template-columns: repeat(1, 1fr);
        gap: 0.5rem;
    }
    
    .quick-action-btn {
        height: 80px;
        flex-direction: row;
        justify-content: flex-start;
        padding: 1rem;
    }
    
    .quick-action-btn i {
        font-size: 1.25rem;
        margin-bottom: 0;
        margin-right: 0.75rem;
    }
    
    .quick-action-btn span {
        font-size: 0.875rem;
        text-align: left;
    }
}

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

/* Stats Cards */
.stat-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
}

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

.stat-icon {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    font-size: 2.5rem;
    opacity: 0.1;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.stat-change {
    font-size: 0.85rem;
    font-weight: 500;
}

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

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

/* Chart Components */
.legend-color {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 2px;
    margin-right: 8px;
}

canvas {
    max-height: 300px;
}

/* Table Styles */
.table-modern {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-modern th {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: 600;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
}

.table-modern td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.table-modern tbody tr:hover {
    background: var(--bg-tertiary);
}

/* Badge Styles */
.badge-modern {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
}

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

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

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

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

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-accent { color: var(--accent-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }
.text-info { color: var(--info-color); }

.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }
.bg-accent { background-color: var(--accent-color); }
.bg-danger { background-color: var(--danger-color); }
.bg-warning { background-color: var(--warning-color); }
.bg-info { background-color: var(--info-color); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

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

@media (max-width: 1200px) {
    .pos-system {
        grid-template-columns: 1.5fr 1fr;
    }
    
    .menu-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 992px) {
    .pos-system {
        grid-template-columns: 1fr;
        height: auto;
        gap: var(--spacing-md);
    }
    
    .menu-section {
        height: 60vh;
    }
    
    .order-section {
        height: 40vh;
    }
}

@media (max-width: 768px) {
    .content-area {
        padding: var(--spacing-md);
    }
    
    .menu-grid {
        grid-template-columns: 1fr;
    }
    
    .category-tabs {
        flex-wrap: wrap;
    }
    
    .payment-methods {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .pos-title {
        font-size: 1.5rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .menu-item {
        padding: var(--spacing-md);
    }
}

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

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

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

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

.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* ===================================
   LOGIN & REGISTER PAGE STYLES
   =================================== */

/* Login and Register Page Background */
body.login-page,
body.register-page {
    background: linear-gradient(135deg, #10b981 0%, #059669 50%, #047857 100%);
    min-height: 100vh;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    position: relative;
    overflow-x: hidden;
}

/* Back to Home Button */
.back-to-home {
    position: absolute;
    top: 30px;
    left: 30px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    z-index: 100;
}

.back-to-home:hover {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Login Container */
.login-container,
.register-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 600px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    z-index: 10;
}

/* Login/Register Header */
.login-header,
.register-header {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 40px 30px 30px;
    text-align: center;
}

.login-header h1,
.register-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 10px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.login-header p,
.register-header p {
    font-size: 1rem;
    margin: 0;
    opacity: 0.9;
    font-weight: 400;
}

/* Login/Register Body */
.login-body,
.register-body {
    padding: 40px 30px;
}

/* Form Styling */
.form-floating {
    margin-bottom: 20px;
    position: relative;
}

.form-floating .form-control,
.form-floating .form-select {
    height: 60px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    background: #f9fafb;
}

.form-floating .form-control:focus,
.form-floating .form-select:focus {
    border-color: #10b981;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
    background: white;
}

.form-floating label {
    color: #6b7280;
    font-weight: 500;
    padding: 20px 15px;
}

.form-floating .form-control:focus + label,
.form-floating .form-control:not(:placeholder-shown) + label,
.form-floating .form-select:focus + label,
.form-floating .form-select:not([value=""]) + label {
    color: #10b981;
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

/* Password Strength Indicator */
.password-strength {
    margin-top: 10px;
}

.strength-bar {
    height: 4px;
    background: #e5e7eb;
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 5px;
}

.strength-fill {
    height: 100%;
    width: 0%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.strength-fill.strength-weak {
    width: 25%;
    background: #ef4444;
}

.strength-fill.strength-fair {
    width: 50%;
    background: #f59e0b;
}

.strength-fill.strength-good {
    width: 75%;
    background: #10b981;
}

.strength-fill.strength-strong {
    width: 100%;
    background: #059669;
}

/* Submit Button */
.btn-primary,
.btn-success {
    width: 100%;
    height: 55px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
    color: white;
}

/* Terms Checkbox */
.form-check {
    margin: 20px 0;
}

.form-check-input {
    width: 20px;
    height: 20px;
    border: 2px solid #d1d5db;
    border-radius: 4px;
    margin-right: 10px;
}

.form-check-input:checked {
    background-color: #10b981;
    border-color: #10b981;
}

.form-check-label {
    color: #374151;
    font-weight: 500;
}

.form-check-label a {
    color: #10b981;
    text-decoration: none;
    font-weight: 600;
}

.form-check-label a:hover {
    text-decoration: underline;
}

/* Login/Register Footer */
.login-footer,
.register-footer {
    padding: 20px 30px 30px;
    text-align: center;
    background: #f9fafb;
    border-top: 1px solid #e5e7eb;
}

.login-footer p,
.register-footer p {
    margin: 0 0 10px 0;
    color: #6b7280;
    font-size: 0.95rem;
}

.login-footer a,
.register-footer a {
    color: #10b981;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.login-footer a:hover,
.register-footer a:hover {
    color: #059669;
    text-decoration: underline;
}

/* Alert Styling */
.alert {
    border-radius: 12px;
    border: none;
    padding: 15px 20px;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-danger {
    background: #fef2f2;
    color: #dc2626;
    border-left: 4px solid #dc2626;
}

.alert-success {
    background: #f0fdf4;
    color: #16a34a;
    border-left: 4px solid #16a34a;
}

.alert-info {
    background: #eff6ff;
    color: #2563eb;
    border-left: 4px solid #2563eb;
}

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

.btn.loading .spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
}

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

/* Responsive Design */
@media (max-width: 576px) {
    .login-container,
    .register-container {
        margin: 20px;
        max-width: none;
        width: calc(100% - 40px);
    }
    
    .login-header,
    .register-header {
        padding: 30px 20px 20px;
    }
    
    .login-body,
    .register-body {
        padding: 30px 20px;
    }
    
    .login-footer,
    .register-footer {
        padding: 15px 20px 20px;
    }
    
    .back-to-home {
        top: 20px;
        left: 20px;
        padding: 10px 15px;
        font-size: 0.9rem;
    }
}

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

@media print {
    .no-print {
        display: none;
    }
    
    .print-only {
        display: block;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
} 

/* ===================================
   DYNAMIC NAVIGATION STYLES
   =================================== */

/* Navigation Loading State */
.nav-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl);
    min-height: 200px;
}

.nav-loading .spinner-border {
    width: 2rem;
    height: 2rem;
}

/* Navigation Error State */
.nav-error {
    padding: var(--spacing-lg);
}

.nav-error .alert {
    margin: 0;
    border-radius: var(--radius-md);
}

/* Breadcrumb Navigation */
.breadcrumb-nav {
    margin-bottom: var(--spacing-md);
}

.breadcrumb {
    background: transparent;
    padding: 0;
    margin: 0;
    list-style: none;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin: 0 var(--spacing-sm);
    color: var(--text-muted);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

.breadcrumb-home {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-home:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb-home i {
    font-size: 0.875rem;
}

/* Navigation Badges */
.nav-link .badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    margin-left: auto;
}

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

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

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

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

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

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

/* Navigation External Link Indicator */
.nav-link .fa-external-link-alt {
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.nav-link:hover .fa-external-link-alt {
    opacity: 1;
}

/* Navigation Children/Submenu */
.nav-link.has-children {
    position: relative;
}

.nav-link.has-children::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    transition: transform var(--transition-fast);
}

.nav-link.has-children.expanded::after {
    transform: translateY(-50%) rotate(180deg);
}

.nav-children {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
    background: rgba(0, 0, 0, 0.02);
    margin-left: var(--spacing-md);
    border-radius: var(--radius-sm);
}

.nav-children.expanded {
    max-height: 500px;
}

.nav-children .nav-link {
    padding-left: var(--spacing-xl);
    font-size: 0.875rem;
    border-left: 2px solid transparent;
}

.nav-children .nav-link:hover {
    border-left-color: var(--primary-color);
}

/* Navigation Dividers */
.nav-divider {
    height: 1px;
    background: var(--border-light);
    margin: var(--spacing-sm) 0;
    opacity: 0.5;
}

/* Navigation Responsive */
@media (max-width: 768px) {
    .breadcrumb-nav {
        margin-bottom: var(--spacing-sm);
    }
    
    .breadcrumb {
        font-size: 0.8rem;
    }
    
    .breadcrumb-item:not(:last-child)::after {
        margin: 0 var(--spacing-xs);
    }
    
    .nav-link .badge {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
    }
}

/* Navigation Animation */
.nav-section {
    animation: fadeInUp 0.3s ease-out;
}

.nav-link {
    animation: fadeInLeft 0.3s ease-out;
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Navigation Hover Effects */
.nav-link {
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transition: width var(--transition-normal);
    z-index: -1;
}

.nav-link:hover::before {
    width: 100%;
}

.nav-link.active::before {
    width: 100%;
}

/* Navigation Focus States */
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: -2px;
}

/* Navigation Keyboard Navigation */
.nav-link:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: -2px;
}

/* Navigation Accessibility */
.nav-link[aria-expanded="true"] .fa-chevron-down {
    transform: rotate(180deg);
}

/* Navigation Performance Optimizations */
.nav-section {
    will-change: transform;
}

.nav-link {
    will-change: transform, background-color;
}

/* Navigation Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .nav-children {
        background: rgba(255, 255, 255, 0.05);
    }
    
    .nav-divider {
        background: var(--border-dark);
    }
}