* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
  background: radial-gradient(circle at top, #0f172a 0, #020617 45%, #020617 100%);
  color: #e5e7eb;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }