/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* Color Variables & Styling Tokens */
:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #151c2c;
    --bg-card: rgba(21, 28, 44, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    
    --accent-primary: #10b981; /* Neon Emerald */
    --accent-primary-hover: #059669;
    --accent-secondary: #06b6d4; /* Electric Cyan */
    --accent-secondary-hover: #0891b2;
    --accent-orange: #f97316; /* Orange for alerts/highlights */
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 15px rgba(16, 185, 129, 0.2);
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

/* Global Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    line-height: 1.5;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(16, 185, 129, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(6, 180, 212, 0.05) 0%, transparent 40%);
    background-attachment: fixed;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
}

/* Header Section */
header {
    margin-bottom: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.brand {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.brand h1 {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand h1::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 32px;
    background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-sm);
}

.brand p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Stats Cards (KPI Grid) */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-primary);
    opacity: 0.8;
}

.stat-card.blue::before {
    background: var(--accent-secondary);
}

.stat-card.orange::before {
    background: var(--accent-orange);
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.15);
}

.stat-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-info {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Search & Filters Section */
.controls {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-box input {
    width: 100%;
    background: rgba(11, 15, 25, 0.6);
    border: 1px solid var(--border-color);
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-box input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

/* Category Slider / Scroll */
.categories-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.categories-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.categories-container {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.categories-container::-webkit-scrollbar {
    height: 4px;
}

.categories-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.category-chip {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.category-chip:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

.category-chip.active {
    background: var(--accent-primary);
    color: #000;
    border-color: var(--accent-primary);
    font-weight: 600;
    box-shadow: var(--shadow-glow);
}

/* Table Card styling */
.table-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.table-header {
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.table-info span {
    font-weight: 600;
    color: var(--text-primary);
}

/* Real responsive table wrapper */
.table-wrapper {
    overflow-x: auto;
    width: 100%;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    min-width: 600px;
}

th {
    background: rgba(11, 15, 25, 0.4);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    user-select: none;
}

th.sortable {
    cursor: pointer;
    transition: color var(--transition-fast);
}

th.sortable:hover {
    color: var(--text-primary);
}

th.sortable::after {
    content: ' ↕';
    font-size: 0.75rem;
    opacity: 0.5;
}

th.sorted-asc::after {
    content: ' ▲';
    opacity: 1;
    color: var(--accent-primary);
}

th.sorted-desc::after {
    content: ' ▼';
    opacity: 1;
    color: var(--accent-primary);
}

td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
    color: var(--text-primary);
    vertical-align: middle;
    transition: background-color var(--transition-fast);
}

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

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

tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Category Badges on Rows */
.product-name-cell {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.product-title {
    font-weight: 600;
    color: var(--text-primary);
}

.product-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Badge styling */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.badge-retail {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-primary);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-wholesale {
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent-secondary);
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.badge-markup {
    background: rgba(249, 115, 22, 0.1);
    color: var(--accent-orange);
    border: 1px solid rgba(249, 115, 22, 0.2);
}

.badge-stock-in {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-primary);
}

.badge-stock-out {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

/* Empty State */
.empty-state {
    padding: 4rem 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.empty-state svg {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Scrollbar customization */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border-radius: 4px;
    border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: #1e293b;
}