/* Design Tokens & CSS Variables */

:root {
    /* Fonts */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Theme Colors (Light Mode Default) */
    --primary: #a82020;         /* Premium Assam Crimson */
    --primary-dark: #811616;    /* Darker Crimson */
    --primary-light: #fef2f2;   /* Very light red tint */
    --primary-medium: #f87171;  /* Medium red tint */
    --secondary: #1e293b;       /* Dark slate gray */
    --secondary-light: #64748b; /* Slate gray */
    --accent: #f59e0b;          /* Gold / Amber */
    --accent-light: #fef3c7;    /* Light amber */
    
    /* UI States */
    --success: #10b981;         /* Emerald green (Answered) */
    --success-light: #d1fae5;
    --danger: #ef4444;          /* Soft red (Unanswered) */
    --danger-light: #fee2e2;
    --warning: #f59e0b;         /* Amber warning */
    --info: #3b82f6;            /* Cobalt blue (Selected/Info) */
    --info-light: #dbeafe;
    --visited: #6b7280;         /* Gray (Not Answered/Visited) */
    --marked: #8b5cf6;          /* Violet (Marked for Review) */
    --marked-light: #ede9fe;
    
    /* Backgrounds & Panels */
    --bg-page: #f8fafc;
    --bg-card: #ffffff;
    --bg-header: #ffffff;
    --border-color: #e2e8f0;
    --text-main: #0f172a;
    --text-muted: #475569;
    --text-white: #ffffff;
    
    /* Interactive States & Effects */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-premium: 0 20px 25px -5px rgba(168, 32, 32, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-full: 9999px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    
    --max-width: 1200px;
    --header-height: 70px;
}

/* Dark Mode Theme overrides */
[data-theme="dark"] {
    --bg-page: #0f172a;
    --bg-card: #1e293b;
    --bg-header: #1e293b;
    --border-color: #334155;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary-light: #2d1818;
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -1px rgba(0,0,0,0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4), 0 4px 6px -2px rgba(0,0,0,0.2);
}