/* =====================
   Modern Auto Parts POS System CSS
   - Optimized for car spare parts display
   - Responsive design for all screen sizes
   - Enhanced product card visualization
===================== */

:root {
    /* Main Colors - Auto-themed palette */
    --primary-blue: #3563E9;     /* Bright blue for primary actions */
    --primary-red: #EF233C;      /* Accent red for highlights */
    --secondary-blue: #60a5fa;   /* Lighter secondary blue */
    --hover-blue: #2563eb;
    --hover-red: #D90429;
    --success-green: #10b981;
    --warning-yellow: #f59e0b;
    --danger-red: #ef4444;
    
    /* Background Colors */
    --bg-gradient: linear-gradient(135deg, #1E293B, #0F172A);
    --card-bg: #FFFFFF;
    --card-hover-bg: #F8FAFC;
    --section-bg: rgba(255, 255, 255, 0.03);
    
    /* UI Elements */
    --border-radius-lg: 16px;
    --border-radius-md: 12px;
    --border-radius-sm: 8px;
    --border-radius-xs: 4px;
    --shadow-glow: 0 0 20px rgba(53, 99, 233, 0.3);
    --shadow-intense: 0 10px 30px rgba(0, 0, 0, 0.2);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 10px 30px rgba(53, 99, 233, 0.15);
    
    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --text-light: #f8fafc;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    background: var(--bg-gradient);
    min-height: 100vh;
    font-family: var(--font-sans);
    color: var(--text-light);
    position: relative;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    transition: background var(--transition-normal);
    line-height: 1.5;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(53, 99, 233, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 80% 80%, rgba(239, 35, 60, 0.18) 0%, transparent 45%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1400px;
    padding: 20px 24px;
    position: relative;
    margin: 0 auto;
    z-index: 1;
}

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

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

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

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

/* =====================
   Typography & Headers
===================== */
h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    line-height: 1.2;
    font-weight: 800;
}

/* Header Styles */
.main-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.header-title {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.header-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.header-button {
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    background: linear-gradient(to right, var(--primary-blue), var(--hover-blue));
    color: white;
    text-decoration: none;
    transition: all var(--transition-bounce);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 14px rgba(53, 99, 233, 0.3);
    border: none;
}

.header-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(53, 99, 233, 0.4);
}

.header-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(53, 99, 233, 0.3);
}

/* =====================
   Category Section
===================== */
.category-section {
    margin-bottom: 2.5rem;
    background: var(--section-bg);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(5px);
}

.category-header {
    margin: 0 0 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.category-title {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    position: relative;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-red));
    border-radius: 2px;
}

/* =====================
   Items Grid and Scrolling
===================== */
.items-scroll-container {
    position: relative;
    width: 100%;
    padding: 0 40px;
    margin: 20px 0;
}

.items-row {
    display: flex;
    overflow-x: auto;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    gap: 20px;
    padding: 12px 0;
}

.items-row::-webkit-scrollbar {
    display: none;
}

.item-scroll-card {
    flex: 0 0 300px;
    max-width: 300px;
    height: 100%;
}

/* Scroll Navigation */
.scroll-indicators {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.scroll-indicator-left,
.scroll-indicator-right {
    width: 44px;
    height: 44px;
    background: rgba(53, 99, 233, 0.85);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    pointer-events: auto;
    opacity: 0.9;
    transition: all var(--transition-normal);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 10;
}

.scroll-indicator-left:hover,
.scroll-indicator-right:hover {
    background: var(--primary-blue);
    transform: scale(1.1);
    opacity: 1;
}

.scroll-indicator-left.hidden,
.scroll-indicator-right.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

/* =====================
   Part Cards - Auto Parts Specific
===================== */
.item-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 1.25rem;
    transition: all var(--transition-bounce);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.item-card:hover {
    transform: translateY(-10px);
    background: var(--card-hover-bg);
    box-shadow: var(--shadow-hover);
    border-color: rgba(53, 99, 233, 0.2);
}

.item-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-red));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.item-card:hover::before {
    opacity: 1;
}

.item-image {
    width: 100%;
    height: 180px;
    object-fit: contain; /* Changed from cover to contain for better part visualization */
    border-radius: var(--border-radius-md);
    margin-bottom: 16px;
    background: #F1F5F9; /* Light gray background for parts images */
    padding: 0.5rem;
    transition: transform var(--transition-normal);
}

.item-card:hover .item-image {
    transform: scale(1.05);
}

/* Auto parts specific badges */
.part-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--primary-blue);
    color: white;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 5;
}

.part-compatibility {
    display: inline-block;
    padding: 3px 8px;
    background: #F1F5F9;
    border-radius: var(--border-radius-xs);
    font-size: 0.7rem;
    margin-right: 5px;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.part-compatibility i {
    margin-right: 3px;
    color: var(--primary-blue);
}

.item-info {
    color: var(--text-dark);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.item-info h5 {
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 10px;
    line-height: 1.4;
    color: var(--text-dark);
    /* Show ellipsis for long titles */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 42px;
}

.item-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 12px;
    /* Show ellipsis for long descriptions */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
}

/* Part SKU/Product Code */
.part-code {
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    background: #F1F5F9;
    padding: 4px 8px;
    border-radius: var(--border-radius-xs);
    display: inline-block;
}

.item-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin: 10px 0 14px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.original-price {
    font-size: 1rem;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-left: 10px;
}

.add-to-cart {
    font-weight: 600;
    padding: 12px 0;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    background: var(--primary-blue);
    color: white;
    border: none;
}

.add-to-cart:hover {
    background: var(--hover-blue);
    transform: translateY(-2px);
}

.add-to-cart:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
}

.add-to-cart:active:before {
    width: 300px;
    height: 300px;
    opacity: 0;
}

.add-to-cart i {
    font-size: 1rem;
    transition: transform var(--transition-normal);
}

.add-to-cart:hover i {
    transform: translateY(-2px);
}

.add-to-cart.disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* =====================
   Bluetooth Status
===================== */
.bluetooth-status {
    position: fixed;
    top: 32px;
    left: 32px;
    background: var(--card-bg);
    padding: 16px 20px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-intense);
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 1000;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-dark);
    transform: translateY(0);
    transition: all var(--transition-normal);
    max-width: 300px;
}

.bluetooth-indicator {
    position: relative;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-blue);
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.4);
    transition: background var(--transition-normal), box-shadow var(--transition-normal);
}

.bluetooth-indicator.connected {
    background: var(--success-green);
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.5);
}

.bluetooth-text {
    font-weight: 500;
    flex-grow: 1;
}

/* =====================
   Cart Section
===================== */
.cart-section {
    position: fixed;
    top: 32px;
    right: 32px;
    width: 420px;
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-intense);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    z-index: 1000;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-dark);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    transform: translateX(0);
}

.cart-section.hidden {
    transform: translateX(460px);
    opacity: 0;
    pointer-events: none;
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
}

.cart-header h4 {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
}

.cart-header .badge {
    font-size: 0.9rem;
    padding: 5px 10px;
    border-radius: 12px;
    font-weight: 600;
}

.cart-item {
    background: rgba(53, 99, 233, 0.05);
    border-radius: var(--border-radius-md);
    padding: 16px;
    margin-bottom: 12px;
    transition: all var(--transition-normal);
    border: 1px solid rgba(53, 99, 233, 0.1);
    position: relative;
    overflow: hidden;
}

.cart-item:hover {
    background: rgba(53, 99, 233, 0.08);
    transform: translateX(-4px);
    box-shadow: 0 4px 12px rgba(53, 99, 233, 0.1);
}

.cart-item-details {
    padding-right: 10px;
}

.cart-item-name {
    font-size: 1.1rem;
    margin-bottom: 6px;
    color: var(--text-dark);
}

.cart-item-price {
    font-size: 1rem;
    color: var(--primary-blue);
    font-weight: 600;
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.cart-item-controls .btn-group {
    display: flex;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.cart-item-controls .btn-group button {
    border-radius: 0;
    padding: 6px 12px;
    font-size: 1rem;
}

.cart-item-controls input[type="number"] {
    -moz-appearance: textfield;
    text-align: center;
    font-weight: 600;
    width: 60px;
    border: 1px solid rgba(53, 99, 233, 0.3);
}

.cart-item-controls input[type="number"]::-webkit-outer-spin-button,
.cart-item-controls input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.cart-total {
    margin-top: 25px;
    padding: 15px 0;
    border-top: 2px solid rgba(53, 99, 233, 0.15);
    font-size: 1.25rem;
    font-weight: 700;
}

/* Empty cart message styling */
#cart-empty {
    padding: 30px 20px;
    color: var(--text-muted);
    text-align: center;
}

#cart-empty i {
    font-size: 3rem;
    margin-bottom: 15px;
    color: rgba(100, 116, 139, 0.5);
}

#cart-empty p {
    font-size: 1.1rem;
}

/* =====================
   Receipt Modal
===================== */
.receipt-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    transition: opacity var(--transition-normal);
    backdrop-filter: blur(4px);
}

.receipt-modal.visible {
    opacity: 1;
}

.receipt-modal.hiding {
    opacity: 0;
}

.receipt-content {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 28px;
    width: 350px;
    max-width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-intense);
    transform: translateY(0);
    transition: transform var(--transition-normal);
    position: relative;
}

.receipt-modal.hiding .receipt-content {
    transform: translateY(30px);
}

.receipt-header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px dashed #e5e7eb;
    position: relative;
}

.receipt-header i {
    font-size: 2.5em;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.receipt-header h4 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.receipt-header #receipt-number {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.receipt-header #receipt-date {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.receipt-items {
    margin-bottom: 24px;
}

.receipt-items .d-flex {
    padding: 8px 0;
    border-bottom: 1px solid #f3f4f6;
}

.receipt-items .d-flex:last-child {
    border-bottom: none;
}

.receipt-total {
    font-weight: bold;
    font-size: 1.25rem;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#receipt-employee {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #f3f4f6;
    font-size: 0.95rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* =====================
   Quick Actions
===================== */
.quick-actions {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 1000;
}

.quick-actions .btn {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-bottom: 16px;
    border-radius: 50%;
    background: var(--primary-blue);
    color: white;
    transition: all var(--transition-bounce);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border: none;
    cursor: pointer;
}

.quick-actions .btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(53, 99, 233, 0.4);
}

.quick-actions .btn:active {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(53, 99, 233, 0.3);
}

.quick-actions .btn i {
    font-size: 1.25rem;
}

.quick-actions .badge {
    position: absolute;
    top: -8px;
    right: -8px;
    min-width: 22px;
    height: 22px;
    border-radius: 11px;
    background: var(--primary-red);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.btn-red {
    background: var(--primary-red) !important;
}

.btn-red:hover {
    box-shadow: 0 8px 16px rgba(239, 35, 60, 0.4) !important;
}

/* =====================
   Button Styles
===================== */
.btn {
    border: none;
    padding: 10px 16px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    line-height: 1.5;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--hover-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(53, 99, 233, 0.3);
}

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

.btn-outline-primary {
    background: transparent;
    border: 1px solid var(--primary-blue);
    color: var(--primary-blue);
}

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

.btn-outline-danger {
    background: transparent;
    border: 1px solid var(--danger-red);
    color: var(--danger-red);
}

.btn-outline-danger:hover {
    background: var(--danger-red);
    color: white;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 12px 20px;
    font-size: 1.125rem;
}

/* =====================
   Utility Classes
===================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary-blue); }
.text-success { color: var(--success-green); }
.text-danger { color: var(--danger-red); }

.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.me-2 { margin-right: 0.5rem; }
.ms-2 { margin-left: 0.5rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }
.d-flex { display: flex; }
.d-none { display: none; }
.d-block { display: block; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.align-items-center { align-items: center; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

.rounded-pill { border-radius: 9999px; }
.rounded { border-radius: var(--border-radius-md); }
.border { border: 1px solid rgba(100, 116, 139, 0.2); }

.fw-bold { font-weight: 700; }
.fw-semibold { font-weight: 600; }
.fw-normal { font-weight: 400; }
.small { font-size: 0.875rem; }

.bg-primary { background-color: var(--primary-blue); }
.bg-success { background-color: var(--success-green); }
.bg-danger { background-color: var(--danger-red); }
.bg-warning { background-color: var(--warning-yellow); }

.position-absolute { position: absolute; }
.top-0 { top: 0; }
.start-100 { left: 100%; }
.translate-middle { transform: translate(-50%, -50%); }

/* =====================
   Animations
===================== */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

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

.scale-in {
    animation: scaleIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* =====================
   Auto Parts Specific Styles
===================== */

/* Part specifications table */
.part-specs {
    margin-top: 12px;
    font-size: 0.85rem;
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.part-specs tr:nth-child(odd) {
    background-color: rgba(241, 245, 249, 0.5);
}

.part-specs td {
    padding: 4px 8px;
}

.part-specs td:first-child {
    font-weight: 600;
    color: var(--text-dark);
}

.part-specs td:last-child {
    color: var(--text-muted);
}

/* Compatibility badges */
.compatibility-list {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin: 8px 0;
}

.stock-status {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
    padding: 4px 8px;
    border-radius: var(--border-radius-xs);
    margin: 8px 0;
}

.stock-status.in-stock {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-green);
}

.stock-status.low-stock {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--warning-yellow);
}

.stock-status.out-of-stock {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger-red);
}

/* Part category tags */
.part-category {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    z-index: 5;
}

/* Part brand logo */
.part-brand {
    position: absolute;
    top: 12px;
    right: 12px;
    background: white;
    border-radius: 4px;
    padding: 4px;
    height: 30px;
    width: auto;
    max-width: 80px;
    object-fit: contain;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Warranty badge */
.warranty-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: var(--border-radius-xs);
    background-color: rgba(53, 99, 233, 0.1);
    color: var(--primary-blue);
    margin-right: 5px;
}

/* Quality indicator */
.quality-indicator {
    display: flex;
    gap: 2px;
    margin: 8px 0;
}

.quality-indicator .star {
    color: #f59e0b;
    font-size: 0.9rem;
}

.quality-indicator .star.empty {
    color: #e5e7eb;
}

/* Added to cart animation */
@keyframes addedToCart {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.added-to-cart {
    animation: addedToCart 0.5s ease;
}

/* Search and Filter Section */
.search-filter-section {
    margin-bottom: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(8px);
}

.search-box {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 12px 20px 12px 45px;
    border-radius: var(--border-radius-md);
    border: 2px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.search-box input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-blue);
}

.search-box input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.6);
    pointer-events: none;
}

.filter-dropdown {
    padding: 12px 20px;
    border-radius: var(--border-radius-md);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-normal);
}

.filter-dropdown:hover {
    background: rgba(255, 255, 255, 0.15);
}

.filter-dropdown i {
    font-size: 0.8rem;
}

/* =====================
   Form Controls
===================== */
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #e2e8f0;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-normal);
    font-size: 1rem;
    color: var(--text-dark);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 2px rgba(53, 99, 233, 0.2);
}

.form-control-lg {
    padding: 12px 16px;
    font-size: 1.125rem;
}

.input-group {
    display: flex;
    align-items: center;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.input-group-text {
    padding: 10px 16px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-right: none;
    border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
}

.input-group .form-control {
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
    flex: 1;
}

.code-input {
    transition: all 0.3s ease;
}

.code-input.disabled {
    opacity: 0.6;
    pointer-events: none;
}

/* =====================
   Alert Styles
===================== */
.alert {
    padding: 14px 16px;
    border-radius: var(--border-radius-md);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.alert i {
    font-size: 1.2rem;
}

.alert-warning {
    background: #fff7ed;
    border: 1px solid #ffedd5;
    color: var(--warning-yellow);
}

.alert-danger {
    background: #fef2f2;
    border: 1px solid #fee2e2;
    color: var(--danger-red);
}

.alert-success {
    background: #f0fdf4;
    border: 1px solid #dcfce7;
    color: var(--success-green);
}

/* =====================
   Responsive Design
===================== */
/* Large desktop and up */
@media (min-width: 1200px) {
    .container {
        padding: 32px;
    }
    
    .item-scroll-card {
        flex: 0 0 320px;
        max-width: 320px;
    }
    
    .header-title {
        font-size: 2.8rem;
    }
    
    .category-section {
        padding: 2rem;
    }
    
    .search-filter-section {
        padding: 1.5rem;
    }
}

/* Desktop */
@media (min-width: 992px) and (max-width: 1199px) {
    .container {
        padding: 28px;
    }
    
    .item-scroll-card {
        flex: 0 0 300px;
        max-width: 300px;
    }
    
    .category-section {
        padding: 1.75rem;
    }
}

/* Tablet */
@media (min-width: 768px) and (max-width: 991px) {
    .container {
        padding: 24px;
    }
    
    .header-title {
        font-size: 2.2rem;
    }
    
    .item-scroll-card {
        flex: 0 0 260px;
        max-width: 260px;
    }
    
    .cart-section {
        width: 380px;
    }
    
    .category-section {
        padding: 1.5rem;
    }
    
    .main-header {
        padding: 1.25rem;
    }
}

/* Mobile landscape and tablet portrait */
@media (min-width: 576px) and (max-width: 767px) {
    .container {
        padding: 16px;
    }
    
    .header-title {
        font-size: 2rem;
    }
    
    .items-scroll-container {
        padding: 0 24px;
    }
    
    .scroll-indicator-left,
    .scroll-indicator-right {
        width: 32px;
        height: 32px;
    }
    
    .item-scroll-card {
        flex: 0 0 230px;
        max-width: 230px;
    }
    
    .item-card {
        padding: 12px;
    }
    
    .item-image {
        height: 150px;
    }
    
    .cart-section {
        right: 16px;
        top: 16px;
        width: 320px;
    }
    
    .bluetooth-status {
        left: 16px;
        top: 16px;
    }
    
    .quick-actions {
        right: 16px;
        bottom: 16px;
    }
    
    .quick-actions .btn {
        width: 48px;
        height: 48px;
    }
    
    .category-section {
        padding: 1.25rem;
    }
    
    .main-header {
        padding: 1rem;
    }
    
    .search-filter-section {
        flex-direction: column;
        align-items: stretch;
    }
}

/* Mobile portrait */
@media (max-width: 575px) {
    .container {
        padding: 12px;
    }
    
    .header-title {
        font-size: 1.8rem;
    }
    
    .header-button {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .category-title {
        font-size: 1.5rem;
    }
    
    .items-scroll-container {
        padding: 0 16px;
        margin: 12px 0;
    }
    
    .scroll-indicator-left,
    .scroll-indicator-right {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
    
    .item-scroll-card {
        flex: 0 0 200px;
        max-width: 200px;
    }
    
    .item-card {
        padding: 10px;
    }
    
    .item-image {
        height: 130px;
        margin-bottom: 10px;
    }
    
    .item-info h5 {
        font-size: 1rem;
        margin-bottom: 6px;
        min-height: 36px;
    }
    
    .item-price {
        font-size: 1.2rem;
        margin: 6px 0 10px;
    }
    
    .item-info p {
        font-size: 0.8rem;
        margin-bottom: 8px;
    }
    
    .add-to-cart {
        padding: 8px 0;
        font-size: 0.9rem;
    }
    
    /* Fixed panels */
    .cart-section {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-height: 80vh;
        border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    }
    
    .cart-section.hidden {
        transform: translateY(100%);
    }
    
    .bluetooth-status {
        top: 12px;
        left: 12px;
        padding: 12px 16px;
        max-width: calc(100% - 24px);
    }
    
    .quick-actions {
        right: 12px;
        bottom: 12px;
    }
    
    .quick-actions .btn {
        width: 48px;
        height: 48px;
        margin-bottom: 10px;
    }
    
    .btn {
        padding: 8px 14px;
        font-size: 0.9rem;
    }
    
    .form-control-lg {
        padding: 10px 14px;
        font-size: 1rem;
    }
    
    .receipt-content {
        padding: 20px;
    }
    
    .category-section {
        padding: 1rem;
    }
    
    .main-header {
        padding: 1rem;
    }
    
    .search-filter-section {
        padding: 0.75rem;
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    
    .search-box input {
        padding: 10px 20px 10px 40px;
    }
    
    .header-actions {
        flex-direction: column;
        gap: 0.75rem;
        margin-top: 1rem;
    }
    
    .header-button {
        width: 100%;
        justify-content: center;
    }
}

/* Extra small devices */
@media (max-width: 350px) {
    .item-scroll-card {
        flex: 0 0 180px;
        max-width: 180px;
    }
    
    .item-image {
        height: 110px;
    }
    
    .item-info h5 {
        font-size: 0.9rem;
        min-height: 32px;
    }
    
    .item-price {
        font-size: 1.1rem;
        margin: 4px 0 8px;
    }
    
    .add-to-cart {
        padding: 6px 0;
        font-size: 0.8rem;
    }
    
    .category-title {
        font-size: 1.3rem;
    }
    
    .category-section {
        padding: 0.75rem;
    }
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    .print-only {
        display: block !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .container {
        padding: 0;
        margin: 0;
    }
    
    .receipt-content {
        box-shadow: none;
        border: none;
    }
}