:root {
  /* Colors */
  --bg:              #080808;
  --surface:         #111111;
  --surface-2:       #161616;
  --border:          rgba(255, 255, 255, 0.08);
  --border-hover:    rgba(255, 255, 255, 0.16);

  /* Text */
  --text-primary:    #F5F5F5;
  --text-secondary:  #888888;
  --text-muted:      #444444;

  /* Accent */
  --accent:          #E8FF47;
  --accent-muted:    rgba(232, 255, 71, 0.10);
  --accent-hover:    #F0FF6A;

  /* Typography */
  --font-heading:    'Space Grotesk', sans-serif;
  --font-body:       'Inter', sans-serif;
  --font-mono:       'JetBrains Mono', monospace;

  /* Spacing */
  --section-py:      80px;
  --section-px:      24px;
  --max-width:       1100px;
  --card-radius:     6px;
  --badge-radius:    3px;

  /* Shadows */
  --shadow-sm:       0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:       0 4px 16px rgba(0,0,0,0.5);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  min-height: 100vh;
}

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

ul {
  list-style: none;
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent);
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  line-height: 1.2;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem);  font-weight: 700; }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 700; }
h4 { font-size: 1.25rem;   font-weight: 700; }
h5 { font-size: 1.125rem;  font-weight: 600; }
h6 { font-size: 1rem;      font-weight: 600; }

code, pre, .tech-tag {
  font-family: var(--font-mono);
}

.text-sm     { font-size: 0.875rem; }
.text-xs     { font-size: 0.75rem; }
.text-mono   { font-family: var(--font-mono); }
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-muted  { color: var(--text-muted); }

.mt-8  { margin-top: 8px;  }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8  { margin-bottom: 8px;  }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }