/* UI/UX Pro Max Enhanced Styles for POS System
 * Design System: Restaurant/Service Industry
 * Style: Soft UI Evolution with Professional Touch
 * Color Mood: Warm, trustworthy, efficient
 */

:root {
    /* Primary Color Palette - Restaurant/Service */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    
    --secondary-color: #10b981;
    --secondary-hover: #059669;
    --secondary-light: #d1fae5;
    
    --accent-color: #f59e0b;
    --accent-hover: #d97706;
    
    --danger-color: #ef4444;
    --danger-hover: #dc2626;
    
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    
    /* Neutral Colors */
    --background: #f8fafc;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --border: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    /* Shadows - Soft UI */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions - Smooth 150-300ms */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing Scale */
    --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: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
}

/* Global Enhancements */
* {
    box-sizing: border-box;
}

body {
    background-color: var(--background);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Improved Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.card-elevated {
    box-shadow: var(--shadow-lg);
}

/* Enhanced Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.875rem;
    line-height: 1.5;
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
    white-space: nowrap;
}

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

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

.btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), #1e40af);
}

.btn-success {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-hover));
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), var(--danger-hover));
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: white;
}

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

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

/* Enhanced Form Controls */
.form-control, .form-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: all var(--transition-base);
    background: var(--surface);
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-control:hover, .form-select:hover {
    border-color: var(--primary-color);
}

/* Input Groups */
.input-group {
    position: relative;
    display: flex;
    align-items: stretch;
    width: 100%;
}

.input-group > .form-control {
    position: relative;
    flex: 1 1 auto;
    width: 1%;
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-secondary);
    text-align: center;
    white-space: nowrap;
    background-color: var(--background);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

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

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

.badge-warning {
    background: #fef3c7;
    color: var(--accent-color);
}

.badge-danger {
    background: #fee2e2;
    color: var(--danger-color);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background: var(--background);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-md);
    border-bottom: 2px solid var(--border);
}

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

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

.table tbody td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

/* Alert Messages */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: var(--spacing-md);
}

.alert-success {
    background: var(--secondary-light);
    border-color: var(--secondary-color);
    color: #065f46;
}

.alert-danger {
    background: #fee2e2;
    border-color: var(--danger-color);
    color: #991b1b;
}

.alert-warning {
    background: #fef3c7;
    border-color: var(--accent-color);
    color: #92400e;
}

.alert-info {
    background: var(--primary-light);
    border-color: var(--info-color);
    color: #1e40af;
}

/* Loading States */
.skeleton {
    background: linear-gradient(90deg, var(--border) 25%, var(--surface-hover) 50%, var(--border) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid var(--border);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spinner-rotate 0.6s linear infinite;
}

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

/* Navbar Enhancement */
.navbar {
    background: linear-gradient(135deg, #1e293b, #334155);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
    transition: all var(--transition-fast);
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.nav-link {
    position: relative;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: currentColor;
    transition: width var(--transition-base);
}

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

/* Modal Improvements */
.modal-content {
    border: none;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    border-bottom: 2px solid var(--border);
    padding: var(--spacing-xl);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    border-top: 2px solid var(--border);
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
}

/* Dropdown Improvements */
.dropdown-menu {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm);
}

.dropdown-item {
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.dropdown-item:hover {
    background: var(--surface-hover);
    transform: translateX(4px);
}

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

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Responsive Breakpoints: 375px, 768px, 1024px, 1440px */
@media (max-width: 768px) {
    :root {
        --spacing-md: 0.75rem;
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
    }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.813rem;
    }
}

/* Utility Classes */
.cursor-pointer {
    cursor: pointer;
}

.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

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

.slide-up {
    animation: slideUp var(--transition-base) ease-out;
}

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

/* Glassmorphism Effect (optional) */
.glass {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Gradient Text */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* ==========================================
   Mobile Responsive Fixes
   ========================================== */

/* Chart Canvas Mobile Optimization */
@media (max-width: 768px) {
    /* Fix chart height compression on mobile */
    canvas {
        min-height: 250px !important;
        height: auto !important;
    }
    
    /* Specific chart fixes */
    #salesChart,
    #topProductsChart {
        min-height: 300px !important;
    }
    
    #paymentChart {
        min-height: 250px !important;
    }
    
    /* Ensure chart containers have proper height */
    .card-body canvas {
        width: 100% !important;
        height: auto !important;
    }
}

/* Table Responsive Wrapper - Prevent overflow on all tables */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
}

/* Make all tables scrollable on mobile */
@media (max-width: 768px) {
    .card-body > table,
    .table:not(.table-responsive table) {
        display: block;
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Add wrapper styling for better UX */
    .card-body {
        padding: 0.75rem;
    }
    
    /* Adjust table text size for mobile readability */
    .table {
        font-size: 0.875rem;
    }
    
    .table th,
    .table td {
        padding: 0.5rem 0.25rem;
        white-space: nowrap;
    }
    
    /* Stack statistic cards vertically */
    .row > [class*='col-md-'] {
        margin-bottom: 1rem;
    }
    
    /* Reduce chart row margins */
    .row.mb-4 {
        margin-bottom: 1.5rem !important;
    }
    
    /* Button text adjustments */
    .btn-sm {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }
    
    /* Modal improvements for mobile */
    .modal-dialog {
        margin: 0.5rem;
    }
    
    .modal-lg {
        max-width: calc(100% - 1rem);
    }
}

/* ========================================
   POS System Compact Styles
   ======================================== */

/* Compact Menu Container */
.pos-menu-container {
    max-height: calc(100vh - 250px);
    overflow-y: auto;
    padding: 0.5rem;
}

/* Compact Menu Card */
.menu-card-compact {
    cursor: pointer;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    background: var(--surface);
    height: 100%;
    min-height: 70px;
}

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

.menu-card-compact:active {
    transform: translateY(0) scale(0.98);
}

/* Menu Item Text */
.menu-item-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.menu-item-price {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--secondary-color);
}

/* Option Badge */
.badge-option {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 16px;
    height: 16px;
    font-size: 0.65rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-color);
    color: white;
    border-radius: 50%;
    font-weight: bold;
}

/* Compact Cart Items */
.cart-items-compact {
    max-height: calc(100vh - 400px);
    min-height: 200px;
    overflow-y: auto;
}

.cart-item-compact {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    padding: 0.4rem;
    margin-bottom: 0.3rem;
    background: var(--surface-hover);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.cart-item-compact .cart-item-remove {
    flex-shrink: 0;
}

.cart-item-compact:hover {
    background: var(--primary-light);
}

.cart-item-info {
    flex: 1;
    min-width: 0;
}

.cart-item-name {
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.1rem;
    word-break: break-word;
}

.cart-item-options {
    font-size: 0.7rem;
    color: var(--text-secondary);
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-top: 0.2rem;
}

.cart-item-options span {
    display: inline-block;
    background: rgba(0, 0, 0, 0.05);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
}

.cart-item-qty {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin: 0 0.5rem;
    min-width: 80px;
    justify-content: center;
}

.qty-btn {
    width: 22px;
    height: 22px;
    padding: 0;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: white;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.qty-display {
    min-width: 20px;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.cart-item-price {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin: 0 0.5rem;
    min-width: 80px;
    text-align: right;
    white-space: nowrap;
}

.cart-item-remove {
    width: 22px;
    height: 22px;
    padding: 0;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--danger-color);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.cart-item-remove:hover {
    background: var(--danger-color);
    color: white;
}

/* Compact Button Styles */
.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 500;
}

.btn-outline-primary.btn-sm {
    border-width: 1px;
}

/* Category Button Group Compact */
.btn-group-sm > .btn {
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
}

/* Form Control Compact */
.form-select-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
}

/* Scrollbar Styling */
.pos-menu-container::-webkit-scrollbar,
.cart-items-compact::-webkit-scrollbar {
    width: 6px;
}

.pos-menu-container::-webkit-scrollbar-track,
.cart-items-compact::-webkit-scrollbar-track {
    background: var(--background);
    border-radius: var(--radius-full);
}

.pos-menu-container::-webkit-scrollbar-thumb,
.cart-items-compact::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-full);
}

.pos-menu-container::-webkit-scrollbar-thumb:hover,
.cart-items-compact::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}