:root {
    /* Clean Modern Retail Theme Colors */
    --bg-primary: #0F172A; /* Slate 900 */
    --bg-secondary: #1E293B; /* Slate 800 */
    --bg-surface: #1E293B;
    --bg-hover: #334155; /* Slate 700 */
    
    --border-color: #334155;
    --border-hover: #475569;
    
    --text-primary: #F8FAFC; /* Slate 50 */
    --text-secondary: #94A3B8; /* Slate 400 */
    --text-muted: #64748B; /* Slate 500 */
    
    --accent-primary: #3B82F6; /* Blue 500 */
    --accent-hover: #2563EB; /* Blue 600 */
    --accent-gold: #F59E0B; /* Amber 500 */
    --accent-cyan: #06B6D4; /* Cyan 500 */
    
    --success: #10B981; /* Emerald 500 */
    --danger: #EF4444; /* Red 500 */
    --warning: #F59E0B;
    --info: #3B82F6;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --sidebar-width: 260px;
    
    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: var(--radius-sm); }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

::selection {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

a { color: var(--accent-gold); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-hover); }

/* Animations */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideInLeft { from { opacity: 0; transform: translateX(-20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes pulse { 0% { transform: scale(1); } 50% { transform: scale(1.05); } 100% { transform: scale(1); } }

.fade-in { animation: fadeIn 0.4s ease forwards; }
.slide-up { animation: slideUp 0.5s ease forwards; }

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.2; }
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }

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

.flex { display: flex; }
.grid { display: grid; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.mt-md { margin-top: var(--space-md); }
.mb-md { margin-bottom: var(--space-md); }