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

:root {
  --bg-deep:       #050810;
  --bg-surface:    #0b0f1e;
  --bg-card:       rgba(11, 20, 40, 0.72);
  --text-primary:  #e8eaf6;
  --text-muted:    #8892b0;
  --accent:        #00d4ff;
  --accent-alt:    #7b2fff;
  --accent-glow:   rgba(0, 212, 255, 0.25);
  --accent-glow2:  rgba(123, 47, 255, 0.2);
  --success:       #00ffaa;
  --border:        rgba(0, 212, 255, 0.15);
  --border-strong: rgba(0, 212, 255, 0.35);
  --shadow-card:   0 4px 32px rgba(0, 0, 0, 0.6);
  --shadow-glow:   0 0 24px rgba(0, 212, 255, 0.3);
  --radius-sm:     4px;
  --radius-md:     8px;
  --radius-lg:     16px;
  --font-display:  'Space Grotesk', 'Courier New', monospace;
  --font-mono:     'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  --font-body:     'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition:    cubic-bezier(0.2, 0.9, 0.3, 1);
  --container:     1200px;
  --nav-h:         72px;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

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

input, textarea {
  font: inherit;
}

::selection {
  background: var(--accent);
  color: var(--bg-deep);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}