/* ==========================================================================
   DESIGN SYSTEM TOKENS
   ========================================================================== */

:root {
    /* --- Spacing Scale (4px base) --- */
    --space-1: 0.25rem; /* 4px */
    --space-2: 0.5rem;  /* 8px */
    --space-3: 0.75rem; /* 12px */
    --space-4: 1rem;    /* 16px */
    --space-5: 1.25rem; /* 20px */
    --space-6: 1.5rem;  /* 24px */
    --space-8: 2rem;    /* 32px */
    --space-12: 3rem;   /* 48px */
    --space-16: 4rem;   /* 64px */

    /* --- Typography Scale --- */
    --text-xs: 0.75rem;   /* 12px */
    --text-sm: 0.875rem;  /* 14px */
    --text-base: 1rem;    /* 16px */
    --text-lg: 1.125rem;  /* 18px */
    --text-xl: 1.25rem;   /* 20px */
    --text-2xl: 1.5rem;   /* 24px */
    --text-3xl: 1.875rem; /* 30px */
    --text-4xl: 2.25rem;  /* 36px */

    /* --- Font Weights --- */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-black: 900;

    /* --- V3 Typography Constants --- */
    --font-weight-kpi-value: 900;
    --letter-spacing-kpi-label: 0.2em;

    /* --- V3 Color Palette --- */
    --color-primary: #818CF8;   /* V3 Indigo */
    --color-secondary: #EC4899; /* Pink-500 */
    --color-success: #10B981;   /* V3 Emerald */
    --color-warning: #F59E0B;   /* Amber-500 */
    --color-danger: #EF4444;    /* Rose-500 */
    --color-info: #06B6D4;      /* Cyan-500 */
    --color-accent: #06B6D4;    /* V3 Cyan */
    
    --color-btc: #F7931A;
    --color-gmt: #8B5CF6;

    /* --- Neutral / Gray Scale --- */
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    --color-gray-950: #020617;

    /* --- Backgrounds & Surfaces --- */
    --color-bg-void: #030014;
    --color-surface-glass: rgba(15, 23, 42, 0.6);
    --color-surface-glass-heavy: rgba(10, 10, 18, 0.8);
    --color-border-glass: rgba(255, 255, 255, 0.08);
    --color-border-glass-bright: rgba(255, 255, 255, 0.15);

    /* --- Shared Effects --- */
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --radius-sm: 0.5rem;   /* 8px */
    --radius-md: 0.75rem;  /* 12px */
    --radius-lg: 1rem;     /* 16px */
    --radius-xl: 1.5rem;   /* 24px */
    --radius-2xl: 2.5rem;  /* 40px */

    /* --- Expanded Glass Aesthetic --- */
    --glass-blur: blur(12px);
    --glass-blur-heavy: blur(20px);
    --glass-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 100%);
    
    /* --- Semantic Surface Tokens --- */
    --color-surface-card: var(--color-surface-glass);
    --color-surface-hover: rgba(255, 255, 255, 0.04);
    
    /* --- Global Layout Constants --- */
    --header-height: 72px;
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 80px;
    --content-max-width: 1600px;
    
    /* --- Top Nav Constants --- */
    --nav-link-spacing: var(--space-4);
    
    /* --- Transitions --- */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Global Typography Readability Adjustments --- */
.text-\[8px\] { font-size: 10px !important; letter-spacing: 0.05em; }
.text-\[9px\] { font-size: 11px !important; letter-spacing: 0.03em; }
.text-\[10px\] { font-size: 12px !important; letter-spacing: 0.02em; }
.text-\[11px\] { font-size: 13px !important; }
.text-xs { font-size: 13px !important; }
.text-sm { font-size: 14px !important; }
.text-base { font-size: 16px !important; }