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

:root {
  /* === MECH CORE COLORS === */
  /* Dark Metallic Base */
  --mech-void: #050508;
  --mech-hull-dark: #0a0a0f;
  --mech-hull: #12121a;
  --mech-hull-light: #1a1a2e;
  --mech-panel: #252538;
  --mech-panel-highlight: #2d2d45;

  /* Metallic Accents */
  --mech-steel: #3a3a52;
  --mech-chrome: #5a5a72;
  --mech-silver: #8888a0;

  /* === NEON ACCENT SYSTEM === */
  /* Primary - Cyan (Power/Active) */
  --neon-cyan-dim: #00666a;
  --neon-cyan: #00d4db;
  --neon-cyan-bright: #00fff7;
  --neon-cyan-glow: rgba(0, 255, 247, 0.6);

  /* Secondary - Orange (Warning/Highlight) */
  --neon-orange-dim: #663a1a;
  --neon-orange: #ff6b35;
  --neon-orange-bright: #ff8c5a;
  --neon-orange-glow: rgba(255, 107, 53, 0.6);

  /* Tertiary - Red (Alert/Danger) */
  --neon-red-dim: #661a2a;
  --neon-red: #ff3366;
  --neon-red-bright: #ff5588;
  --neon-red-glow: rgba(255, 51, 102, 0.5);

  /* Auxiliary - Green (Success/Online) */
  --neon-green-dim: #1a4d1a;
  --neon-green: #00ff66;
  --neon-green-bright: #33ff88;
  --neon-green-glow: rgba(0, 255, 102, 0.5);

  /* === TEXT HIERARCHY === */
  --text-primary: #e8e8f0;
  --text-secondary: #a0a0b8;
  --text-muted: #606078;
  --text-data: var(--neon-cyan);
  --text-warning: var(--neon-orange);
  --text-alert: var(--neon-red);

  /* === SHADOWS & GLOWS === */
  --shadow-panel: 0 4px 20px rgba(0, 0, 0, 0.5);
  --shadow-panel-inset: inset 0 2px 10px rgba(0, 0, 0, 0.5);
  --shadow-deep: 0 10px 40px rgba(0, 0, 0, 0.8);

  --glow-cyan: 0 0 20px var(--neon-cyan-glow), 0 0 40px rgba(0, 255, 247, 0.3);
  --glow-cyan-intense: 0 0 10px var(--neon-cyan-bright), 0 0 30px var(--neon-cyan-glow),
    0 0 60px rgba(0, 255, 247, 0.4);
  --glow-orange: 0 0 20px var(--neon-orange-glow), 0 0 40px rgba(255, 107, 53, 0.3);
  --glow-red: 0 0 20px var(--neon-red-glow);
  --glow-green: 0 0 10px var(--neon-green-glow);

  /* === BORDERS === */
  --border-panel: 1px solid var(--mech-steel);
  --border-glow-cyan: 1px solid var(--neon-cyan);
  --border-glow-orange: 1px solid var(--neon-orange);

  /* === TRANSITIONS === */
  --transition-mechanical: all 0.15s cubic-bezier(0.4, 0, 0.6, 1);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-glitch: all 0.05s steps(2);

  /* === SPACING SYSTEM === */
  --hud-padding: 20px;
  --panel-gap: 2px;
  --corner-size: 12px;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--mech-void);
}

body {
  font-family: "Exo 2", -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--mech-hull-dark);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Orbitron", monospace;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

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

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

/* Monospace utility */
.mono {
  font-family: "Share Tech Mono", monospace;
}

::selection {
  background: var(--neon-cyan);
  color: var(--mech-hull-dark);
}