:root {
  /* Colors */
  --bg: #f5f5f5;
  --text: #0d0d0d;
  --muted: #666;
  --card: #111;
  --primary: #0d0d0d;
  --primary-text: #ffffff;
  --border: #ddd;
  
  /* Spacing & Sizing */
  --radius: 8px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Space Grotesk', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 24px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
}

.hidden {
  display: none;
}

/* Responsive */
@media (max-width: 640px) {
  body {
    padding: 16px;
  }
}