/* ==========================================================================
   FINTECH PRO 2026 DESIGN SYSTEM TOKENS (OKLCH & DENSE TYPOGRAPHY)
   ========================================================================== */

:root {
  /* Font Stacks */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
  --font-display: "Space Grotesk", var(--font-sans);

  /* Spacing Scale (4px Base Unit) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;

  /* Border Radii (Technical Precision & Modern Curves) */
  --radius-xs: 3px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-full: 9999px;

  /* Transition Curves */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-normal: 220ms;
  --duration-slow: 350ms;

  /* Z-Index Hierarchy */
  --z-base: 1;
  --z-sticky: 50;
  --z-drawer: 100;
  --z-modal: 200;
  --z-toast: 300;
}

/* --------------------------------------------------------------------------
   DARK THEME TOKENS (DEFAULT TRADING FLOOR MODE)
   -------------------------------------------------------------------------- */
[data-theme="dark"], body.theme-dark {
  color-scheme: dark;

  /* Surface Elevations */
  --surface-base: oklch(0.12 0.018 255);       /* Deep Onyx Slate */
  --surface-card: oklch(0.15 0.022 255);       /* Card Layer 1 */
  --surface-card-sub: oklch(0.17 0.025 255);   /* Card Inset/Sub-surface */
  --surface-card-hover: oklch(0.19 0.028 255); /* Elevated Hover */
  --surface-overlay: oklch(0.21 0.03 255);     /* Modals & Menus */
  --surface-inset: oklch(0.10 0.015 255);      /* Inset Inputs & Code */

  /* Text Hierarchy */
  --text-primary: oklch(0.96 0.005 255);
  --text-secondary: oklch(0.78 0.012 255);
  --text-tertiary: oklch(0.60 0.015 255);
  --text-muted: oklch(0.45 0.015 255);

  /* Borders & Dividers */
  --border-subtle: oklch(1 0 0 / 0.06);
  --border-default: oklch(1 0 0 / 0.10);
  --border-strong: oklch(1 0 0 / 0.16);
  --border-specular: oklch(1 0 0 / 0.22);

  /* Brand & Accents */
  --color-brand: oklch(0.70 0.17 220);        /* Electric Cyan */
  --color-brand-glow: oklch(0.70 0.17 220 / 0.25);
  --color-primary: oklch(0.72 0.16 230);
  --color-accent: oklch(0.65 0.22 290);       /* AI Violet */

  /* Semantics */
  --color-success: oklch(0.74 0.19 150);      /* Emerald Green (Profit) */
  --color-success-bg: oklch(0.74 0.19 150 / 0.12);
  --color-danger: oklch(0.65 0.23 25);        /* Rose Coral (Loss / Alert) */
  --color-danger-bg: oklch(0.65 0.23 25 / 0.12);
  --color-warning: oklch(0.78 0.17 75);       /* Amber (Evaluating) */
  --color-warning-bg: oklch(0.78 0.17 75 / 0.12);
  --color-info: oklch(0.72 0.16 220);         /* Cyan */
  --color-info-bg: oklch(0.72 0.16 220 / 0.12);

  /* Glassmorphism 2.0 & Depth */
  --glass-bg: oklch(0.15 0.02 255 / 0.75);
  --glass-border: oklch(1 0 0 / 0.12);
  --glass-blur: blur(16px) saturate(160%);
  --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.4), 0 0 0 1px var(--border-default);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.55), 0 0 0 1px var(--border-strong);
  --shadow-glow: 0 0 20px var(--color-brand-glow);
}

/* --------------------------------------------------------------------------
   LIGHT THEME TOKENS (ACCESSIBLE DAY MODE)
   -------------------------------------------------------------------------- */
[data-theme="light"], body.theme-light {
  color-scheme: light;

  /* Surface Elevations */
  --surface-base: oklch(0.96 0.008 250);
  --surface-card: oklch(1 0 0);
  --surface-card-sub: oklch(0.97 0.008 250);
  --surface-card-hover: oklch(0.95 0.01 250);
  --surface-overlay: oklch(1 0 0);
  --surface-inset: oklch(0.94 0.008 250);

  /* Text Hierarchy */
  --text-primary: oklch(0.15 0.015 255);
  --text-secondary: oklch(0.35 0.015 255);
  --text-tertiary: oklch(0.50 0.015 255);
  --text-muted: oklch(0.65 0.012 255);

  /* Borders & Dividers */
  --border-subtle: oklch(0 0 0 / 0.05);
  --border-default: oklch(0 0 0 / 0.10);
  --border-strong: oklch(0 0 0 / 0.18);
  --border-specular: oklch(0 0 0 / 0.25);

  /* Brand & Accents */
  --color-brand: oklch(0.55 0.18 240);
  --color-brand-glow: oklch(0.55 0.18 240 / 0.15);
  --color-primary: oklch(0.55 0.18 240);
  --color-accent: oklch(0.52 0.22 290);

  /* Semantics */
  --color-success: oklch(0.50 0.18 145);
  --color-success-bg: oklch(0.50 0.18 145 / 0.10);
  --color-danger: oklch(0.55 0.22 25);
  --color-danger-bg: oklch(0.55 0.22 25 / 0.10);
  --color-warning: oklch(0.62 0.17 75);
  --color-warning-bg: oklch(0.62 0.17 75 / 0.10);
  --color-info: oklch(0.55 0.18 220);
  --color-info-bg: oklch(0.55 0.18 220 / 0.10);

  /* Glassmorphism & Depth */
  --glass-bg: oklch(1 0 0 / 0.85);
  --glass-border: oklch(0 0 0 / 0.08);
  --glass-blur: blur(16px) saturate(140%);
  --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.08);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.08), 0 0 0 1px var(--border-default);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.12), 0 0 0 1px var(--border-strong);
  --shadow-glow: 0 0 16px var(--color-brand-glow);
}