/* ============================================================
   IGBG Design System Tokens
   Mobile-First, Dynamic Theme Engine
   ============================================================ */

:root {
  /* Default Theme: Emerald Health & Dark Mode */
  --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Radii */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --radius-full: 9999px;

  /* Elevation & Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 20px var(--primary-glow);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Transitions */
  --trans-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --trans-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --trans-bounce: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Base Theme Palettes */
/* Emerald (Default) */
[data-palette="emerald"], :root {
  --primary-hue: 155;
  --primary: #10b981;
  --primary-hover: #059669;
  --primary-rgb: 16, 185, 129;
  --primary-glow: rgba(16, 185, 129, 0.35);
  --primary-light: rgba(16, 185, 129, 0.12);
  --accent: #06b6d4;
  --accent-rgb: 6, 182, 212;
}

/* Ocean Blue */
[data-palette="ocean"] {
  --primary-hue: 217;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-rgb: 59, 130, 246;
  --primary-glow: rgba(59, 130, 246, 0.35);
  --primary-light: rgba(59, 130, 246, 0.12);
  --accent: #8b5cf6;
  --accent-rgb: 139, 92, 246;
}

/* Sunset Warm */
[data-palette="sunset"] {
  --primary-hue: 24;
  --primary: #f97316;
  --primary-hover: #ea580c;
  --primary-rgb: 249, 115, 22;
  --primary-glow: rgba(249, 115, 22, 0.35);
  --primary-light: rgba(249, 115, 22, 0.12);
  --accent: #eab308;
  --accent-rgb: 234, 179, 8;
}

/* Cyber Neon */
[data-palette="cyber"] {
  --primary-hue: 280;
  --primary: #a855f7;
  --primary-hover: #9333ea;
  --primary-rgb: 168, 85, 247;
  --primary-glow: rgba(168, 85, 247, 0.4);
  --primary-light: rgba(168, 85, 247, 0.14);
  --accent: #06b6d4;
  --accent-rgb: 6, 182, 212;
}

/* Rose Quartz */
[data-palette="rose"] {
  --primary-hue: 345;
  --primary: #f43f5e;
  --primary-hover: #e11d48;
  --primary-rgb: 244, 63, 94;
  --primary-glow: rgba(244, 63, 94, 0.35);
  --primary-light: rgba(244, 63, 94, 0.12);
  --accent: #fb923c;
  --accent-rgb: 251, 146, 60;
}

/* ------------------------------------------------------------
   Mode Styles: Dark (Default), Light, OLED Midnight
   ------------------------------------------------------------ */

/* Dark Mode (Default) */
:root, [data-mode="dark"] {
  --bg-app: #0d1117;
  --bg-surface: #161b22;
  --bg-surface-elevated: #21262d;
  --bg-card: rgba(22, 27, 34, 0.82);
  --bg-card-hover: rgba(33, 38, 45, 0.9);
  --bg-input: #0d1117;
  --border: rgba(240, 246, 252, 0.1);
  --border-highlight: rgba(240, 246, 252, 0.18);
  --text-main: #f0f6fc;
  --text-muted: #8b949e;
  --text-faint: #484f58;
  --nav-bg: rgba(22, 27, 34, 0.88);
  --glass-blur: blur(14px);
  --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.15);
  --warning: #f59e0b;
  --success: #10b981;
  --info: #3b82f6;
}

/* Light Mode */
[data-mode="light"] {
  --bg-app: #f4f6f9;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-card-hover: #ffffff;
  --bg-input: #f8fafc;
  --border: rgba(0, 0, 0, 0.08);
  --border-highlight: rgba(0, 0, 0, 0.14);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-faint: #94a3b8;
  --nav-bg: rgba(255, 255, 255, 0.9);
  --glass-blur: blur(16px);
  --card-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.12);
  --warning: #d97706;
  --success: #059669;
  --info: #2563eb;
}

/* OLED Midnight (Pure Black) */
[data-mode="oled"] {
  --bg-app: #000000;
  --bg-surface: #0a0a0a;
  --bg-surface-elevated: #141414;
  --bg-card: rgba(12, 12, 12, 0.95);
  --bg-card-hover: #161616;
  --bg-input: #050505;
  --border: rgba(255, 255, 255, 0.12);
  --border-highlight: rgba(255, 255, 255, 0.24);
  --text-main: #ffffff;
  --text-muted: #a3a3a3;
  --text-faint: #525252;
  --nav-bg: rgba(5, 5, 5, 0.95);
  --glass-blur: blur(12px);
  --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.7);
  --danger: #f87171;
  --danger-light: rgba(248, 113, 113, 0.15);
  --warning: #fbbf24;
  --success: #34d399;
  --info: #60a5fa;
}

/* ------------------------------------------------------------
   Font Variations
   ------------------------------------------------------------ */
[data-font="sans"] {
  --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-font="rounded"] {
  --font-primary: 'Quicksand', -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-font="mono"] {
  --font-primary: 'JetBrains Mono', monospace;
}

[data-font="serif"] {
  --font-primary: 'Playfair Display', Georgia, serif;
}