:root {
  --canvas: #f6f4f0;
  --fg: #111111;
  --muted: #75716b;
  --hairline: rgba(17, 17, 17, 0.12);
  --surface: #ffffff;
  --flag: #fff4d6;
  --flag-edge: #e2b63a;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --canvas: #0e0e0e;
    --fg: #f2efea;
    --muted: #9b968e;
    --hairline: rgba(242, 239, 234, 0.16);
    --surface: #161616;
    --flag: #2e2409;
    --flag-edge: #7a6220;
  }
}
:root[data-theme="dark"] {
  --canvas: #0e0e0e;
  --fg: #f2efea;
  --muted: #9b968e;
  --hairline: rgba(242, 239, 234, 0.16);
  --surface: #161616;
  --flag: #2e2409;
  --flag-edge: #7a6220;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--fg);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: 44rem;
  margin: 0 auto;
  padding: 3rem 1rem 6rem;
}

header { border-bottom: 1px solid var(--hairline); padding-bottom: 1.75rem; }

.brand {
  font-family: "Kaushan Script", "Brush Script MT", cursive;
  font-size: 1.9rem;
  letter-spacing: 0.01em;
}

h1 { font-size: 1.9rem; line-height: 1.25; margin: 1.25rem 0 0.35rem; text-wrap: balance; }
h2 { font-size: 1.15rem; margin: 2.75rem 0 0.6rem; text-wrap: balance; }
h3 { font-size: 1rem; margin: 1.6rem 0 0.4rem; }

.stamp { color: var(--muted); font-size: 0.85rem; }

.langs { display: flex; gap: 0.5rem; margin-top: 1.25rem; }
.langs button {
  font: inherit;
  font-size: 0.85rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--hairline);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.langs button[aria-pressed="true"] { background: var(--fg); color: var(--canvas); border-color: var(--fg); }
.langs button:focus-visible { outline: 2px solid var(--flag-edge); outline-offset: 2px; }

ul { padding-left: 1.2rem; }
li { margin: 0.35rem 0; }

dl { margin: 0.6rem 0; }
dt { font-weight: 600; margin-top: 0.9rem; }
dd { margin: 0.15rem 0 0 0; color: var(--muted); }

.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
  margin: 1.25rem 0;
}

.fill {
  background: var(--flag);
  border: 1px solid var(--flag-edge);
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  margin: 1.25rem 0;
}
.fill strong { display: block; margin-bottom: 0.3rem; }

a { color: inherit; }

footer { margin-top: 4rem; padding-top: 1.5rem; border-top: 1px solid var(--hairline); color: var(--muted); font-size: 0.85rem; }

body[data-lang] [lang="en"],
body[data-lang] [lang="ko"] { display: none; }
body[data-lang="en"] [lang="en"],
body[data-lang="ko"] [lang="ko"] { display: revert; }