:root {
    /* Base Colors - Deep Slate & Emerald Theme */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-accent: #334155;
    
    /* Functional Accents */
    --clr-primary: #10b981; /* Emerald - Success/Ready */
    --clr-primary-glow: rgba(16, 185, 129, 0.3);
    
    --clr-ai: #f59e0b; /* Amber - AI Advice/Attention */
    --clr-ai-glow: rgba(245, 158, 11, 0.3);
    
    --clr-danger: #ef4444; /* Rose/Red - Disposal/Error */
    --clr-danger-glow: rgba(239, 68, 68, 0.3);
    
    --clr-info: #3b82f6; /* Blue - Stock/Info */
    
    /* Text */
    --txt-main: #f8fafc;
    --txt-dim: #94a3b8;
    --txt-muted: #64748b;
    
    /* Borders & Glass */
    --brd-glass: rgba(255, 255, 255, 0.08);
    --bg-glass: rgba(30, 41, 59, 0.7);
    --blur-std: blur(12px);
    
    /* Spacing & Radius */
    --sp-std: 1.5rem;
    --rd-std: 0.75rem;
    --rd-xl: 1.5rem;
    
    /* Transitions */
    --tr-fast: 0.2s ease;
    --tr-std: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base resets for a premium feel */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-primary);
    color: var(--txt-main);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Glassmorphism Classes */
.glass {
    background: var(--bg-glass);
    backdrop-filter: var(--blur-std);
    -webkit-backdrop-filter: var(--blur-std);
    border: 1px solid var(--brd-glass);
}

.glass-card {
    background: var(--bg-secondary);
    border-radius: var(--rd-std);
    border: 1px solid var(--brd-glass);
    padding: var(--sp-std);
    transition: transform var(--tr-std), box-shadow var(--tr-std);
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Typography Utility */
.heading-l { font-size: 2rem; font-weight: 800; letter-spacing: -0.025em; }
.heading-m { font-size: 1.25rem; font-weight: 700; }
.text-s { font-size: 0.875rem; }

/* AI Specific Styles */
.ai-highlight {
    color: var(--clr-ai);
    text-shadow: 0 0 10px var(--clr-ai-glow);
}

.ai-container {
    border-left: 4px solid var(--clr-ai);
    background: linear-gradient(90deg, var(--clr-ai-glow), transparent);
}

/* Layout Utilities */
.flex-center { display: flex; align-items: center; justify-content: center; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--sp-std); }