:root {
  --color-bg: #ffffff;
  --color-surface: #f5f7fa;
  --color-text: #0a0e27;
  --color-accent: #2032ff;
  --color-accent-dark: #1626cc;
  --color-navy: #0a1452;
  --color-muted: #5a6178;
  --gradient-hero: linear-gradient(135deg, #1a1f4d 0%, #2032ff 100%);
  --max-width: 1280px;
  --gutter: clamp(1rem, 4vw, 2rem);
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

main {
  width: 100%;
}

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

body {
  font-family: 'Pretendard', system-ui, -apple-system, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3 {
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
/* 네비게이션 영역 링크는 밑줄 제외 */
header a,
header a:hover,
footer a,
footer a:hover,
nav a,
nav a:hover {
  text-decoration: none;
}