:root {
  color-scheme: light;

  --bg: #f7f7f4;
  --text: #242424;
  --subtext: #666666;
  --border: #ddddda;
  --link: #315b8a;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;

  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Pretendard",
    "Noto Sans KR",
    "Segoe UI",
    sans-serif;

  line-height: 1.7;
  color: var(--text);
  background: var(--bg);

  padding-top: max(1.5rem, env(safe-area-inset-top));
  padding-right: max(1rem, env(safe-area-inset-right));
  padding-bottom: max(2rem, env(safe-area-inset-bottom));
  padding-left: max(1rem, env(safe-area-inset-left));
}

main {
  width: min(100%, 48rem);
  margin: 0 auto;
}

header {
  margin-bottom: 2rem;
}

h1 {
  margin: 0 0 0.5rem;

  font-size: clamp(1.8rem, 5vw, 2.4rem);
  line-height: 1.3;
}

h2 {
  margin: 2rem 0 0.75rem;

  font-size: clamp(1.15rem, 3vw, 1.35rem);
  line-height: 1.4;
}

p {
  margin: 0.6rem 0;
}

ul,
ol {
  margin: 0.5rem 0;
  padding-left: 1.4rem;
}

li + li {
  margin-top: 0.35rem;
}

.subtitle,
.date {
  color: var(--subtext);
}

.date {
  font-size: 0.9rem;
}

section {
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
}

a {
  color: var(--link);
  text-underline-offset: 0.15em;
  word-break: break-word;
}

footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;

  border-top: 1px solid var(--border);

  color: var(--subtext);
  font-size: 0.9rem;
}

@media (min-width: 768px) {
  body {
    padding-right: max(1.5rem, env(safe-area-inset-right));
    padding-left: max(1.5rem, env(safe-area-inset-left));
  }
}