:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #666666;
  --accent: #1f3a5f;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121417;
    --fg: #ececec;
    --muted: #a0a0a0;
    --accent: #8fb3e0;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", sans-serif;
  line-height: 1.6;
}

.site-header,
main,
.site-footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

.site-header { padding-top: 24px; }
.logo { font-weight: 700; font-size: 1.25rem; color: var(--accent); }

.hero { padding: 96px 0; }
.hero h1 { font-size: clamp(1.75rem, 5vw, 3rem); margin: 0 0 16px; }
.hero p { color: var(--muted); font-size: 1.125rem; margin: 0; }

.site-footer { padding-bottom: 32px; color: var(--muted); font-size: 0.875rem; }
.site-footer a { color: inherit; }