/**
 * MILCOMTEC DESIGN SYSTEM - Part 1: Variables & Reset
 */

:root {
  /* Primary Colors - Industrial Orange (More Vibrant & Industrial) */
  --primary-50: #fff7ed;
  --primary-100: #ffedd5;
  --primary-200: #fed7aa;
  --primary-300: #fdba74;
  --primary-400: #fb923c;
  --primary-500: #F97316;
  /* Optimized Industrial Orange */
  --primary-600: #e05e00;
  --primary-700: #b84d00;
  --primary-800: #943e00;
  --primary-900: #7a3300;

  /* Secondary Colors - Military Green (Deeper & More Rugged) */
  --secondary-50: #f4f6f4;
  --secondary-100: #e9ece9;
  --secondary-200: #ced6ce;
  --secondary-300: #9cb09c;
  --secondary-400: #748f74;
  --secondary-500: #4a6741;
  /* Optimized Military Green */
  --secondary-600: #3c5235;
  --secondary-700: #2e3f29;
  --secondary-800: #212c1d;
  --secondary-900: #141b12;

  /* Neutral Colors - Battleship Grey & Carbon (Premium Dark Mode) */
  --neutral-50: #f8fafc;
  --neutral-100: #f1f5f9;
  --neutral-200: #e2e8f0;
  --neutral-300: #cbd5e1;
  --neutral-400: #94a3b8;
  --neutral-500: #64748b;
  --neutral-600: #475569;
  --neutral-700: #334155;
  /* Battleship Grey Base */
  --neutral-800: #1e293b;
  --neutral-top: #0f172a;
  /* Deep Carbon */
  --neutral-900: #020617;
  /* Void Black */

  /* Semantic */
  --success: #22c55e;
  --warning: #eab308;
  --error: #ef4444;
  --info: #3b82f6;

  /* Backgrounds & Glassmorphism (Premium Depth) */
  --bg-primary: var(--neutral-900);
  --bg-secondary: var(--neutral-800);
  --bg-tertiary: var(--neutral-700);
  --bg-elevated: #1e293b;
  --bg-glass: rgba(15, 23, 42, 0.7);
  --bg-glass-strong: rgba(15, 23, 42, 0.9);
  --bg-glass-border: rgba(255, 255, 255, 0.08);
  --bg-accent: rgba(255, 107, 0, 0.1);

  /* Text */
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-tertiary: #71717a;
  --text-inverse: #09090b;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-default: rgba(255, 255, 255, 0.12);
  --border-strong: rgba(255, 255, 255, 0.2);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Outfit', var(--font-sans);
  --font-mono: 'JetBrains Mono', monospace;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
  --shadow-glow-primary: 0 0 40px rgba(249, 115, 22, 0.3);
  --shadow-glow-secondary: 0 0 40px rgba(34, 197, 94, 0.3);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-Index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-tooltip: 700;
  --z-toast: 800;

  /* Container */
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
}

/* Light Theme */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --bg-elevated: #ffffff;
  --bg-glass: rgba(0, 0, 0, 0.05);
  --bg-glass-strong: rgba(0, 0, 0, 0.1);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #64748b;
  --text-inverse: #ffffff;

  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-default: rgba(0, 0, 0, 0.1);
  --border-strong: rgba(0, 0, 0, 0.15);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Theme Toggle Button */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-glass);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--primary-500);
  border-color: var(--primary-500);
  color: white;
  transform: rotate(15deg);
}

.theme-toggle .fa-sun {
  display: none;
}

.theme-toggle .fa-moon {
  display: block;
}

[data-theme="light"] .theme-toggle .fa-sun {
  display: block;
}

[data-theme="light"] .theme-toggle .fa-moon {
  display: none;
}