/**
 * ForgeReq UI/UX Pro Max Design System
 * Architecture: Three-layer design tokens (Primitive -> Semantic -> Component)
 * Style: Dark Mode OLED with Ember & Protocol Accents
 * Typography: IBM Plex Sans (Body) + JetBrains Mono (Headings & Code)
 */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  /* Primitive Grayscale & OLED Darkness */
  --primitive-black: #000000;
  --primitive-oled: #030712;
  --primitive-gray-950: #080c18;
  --primitive-gray-900: #0f172a;
  --primitive-gray-850: #141f36;
  --primitive-gray-800: #1e293b;
  --primitive-gray-700: #334155;
  --primitive-gray-600: #475569;
  --primitive-gray-500: #64748b;
  --primitive-gray-400: #94a3b8;
  --primitive-gray-300: #cbd5e1;
  --primitive-gray-200: #e2e8f0;
  --primitive-gray-100: #f1f5f9;
  --primitive-white: #ffffff;

  /* Primitive Brand Colors */
  --primitive-ember-500: #f97316;
  --primitive-ember-600: #ea580c;
  --primitive-ember-700: #c2410c;
  --primitive-emerald-500: #10b981;
  --primitive-emerald-600: #059669;
  --primitive-cyan-500: #06b6d4;
  --primitive-sky-500: #38bdf8;
  --primitive-purple-500: #a855f7;
  --primitive-rose-500: #f43f5e;

  /* Semantic Theme Tokens */
  --bg-canvas: var(--primitive-oled);
  --bg-surface: rgba(15, 23, 42, 0.7);
  --bg-surface-elevated: rgba(30, 41, 59, 0.65);
  --bg-surface-solid: #0d1527;
  --bg-glass: rgba(15, 23, 42, 0.65);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-faint: #64748b;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-default: rgba(255, 255, 255, 0.12);
  --border-hover: rgba(249, 115, 22, 0.4);
  --border-focus: var(--primitive-ember-500);

  /* Brand Accents */
  --accent-primary: var(--primitive-ember-500);
  --accent-primary-hover: var(--primitive-ember-600);
  --accent-primary-subtle: rgba(249, 115, 22, 0.12);
  --accent-glow: rgba(249, 115, 22, 0.25);

  --accent-success: var(--primitive-emerald-500);
  --accent-success-subtle: rgba(16, 185, 129, 0.12);
  --accent-info: var(--primitive-sky-500);
  --accent-info-subtle: rgba(56, 189, 248, 0.12);
  --accent-purple: var(--primitive-purple-500);
  --accent-purple-subtle: rgba(168, 85, 247, 0.12);
  --accent-danger: var(--primitive-rose-500);

  /* Typography */
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing Scale (8dp density) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 12px 28px -4px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 24px -2px var(--accent-glow);
  --shadow-glow-emerald: 0 0 24px -2px rgba(16, 185, 129, 0.25);
  --shadow-glow-cyan: 0 0 24px -2px rgba(6, 182, 212, 0.25);
  --shadow-glow-purple: 0 0 24px -2px rgba(168, 85, 247, 0.25);

  /* Dribbble Spotlight & Ambient Glow Tokens */
  --glow-spotlight: radial-gradient(800px circle at 50% -10%, rgba(249, 115, 22, 0.18), transparent 70%);
  --glow-mesh-cyan: radial-gradient(600px circle at 85% 15%, rgba(6, 182, 212, 0.12), transparent 60%);
  --glow-mesh-purple: radial-gradient(600px circle at 15% 25%, rgba(168, 85, 247, 0.12), transparent 60%);
  --mouse-x: 50%;
  --mouse-y: 50%;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Keyframe Animations for Wow Effects */
@keyframes float-hud-1 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(-0.5deg); }
}

@keyframes float-hud-2 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(0.8deg); }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}

@keyframes border-beam {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes shine-sweep {
  0% { transform: translateX(-100%) rotate(25deg); }
  100% { transform: translateX(200%) rotate(25deg); }
}

@keyframes bar-grow {
  0% { transform: scaleY(0.2); }
  50% { transform: scaleY(1); }
  100% { transform: scaleY(0.7); }
}

@keyframes ping-soft {
  0% { transform: scale(1); opacity: 0.8; }
  80%, 100% { transform: scale(2.2); opacity: 0; }
}

/* Accessibility & Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Focus styling for keyboard accessibility */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}

/* Selection */
::selection {
  background-color: var(--accent-primary-subtle);
  color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-canvas);
}
::-webkit-scrollbar-thumb {
  background: var(--primitive-gray-700);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primitive-gray-600);
}

/* Typography styles */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  letter-spacing: -0.025em;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

code, kbd, samp, pre {
  font-family: var(--font-mono);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}