:root {
  --bg: #fbf8f1; --fg: #1a1a1a; --muted: #555; --card: #ffffff; --line: #d9d2c0;
  --accent: #1f2a44; --accent-fg: #ffffff; --link: #0b4fa8; --mark: #8a5a00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418; --fg: #f2f2f2; --muted: #b8b8b8; --card: #1b2028; --line: #39414f;
    --accent: #f5e6b8; --accent-fg: #111418; --link: #8cc4ff; --mark: #f5c96a;
  }
}
* { box-sizing: border-box; }
html { font-size: 112.5%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  line-height: 1.75; word-break: keep-all; overflow-wrap: break-word;
  padding-bottom: 6rem;
}
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: var(--accent-fg); padding: .5rem 1rem; z-index: 10; }
.skip:focus { left: 1rem; }
:focus-visible { outline: 3px solid var(--mark); outline-offset: 2px; }

header {
  position: sticky; top: 0; z-index: 5; background: var(--accent); color: var(--accent-fg);
  padding: .6rem 1rem .8rem;
}
h1 { font-size: 1.15rem; margin: 0 0 .5rem; text-align: center; }
nav { display: flex; gap: .5rem; max-width: 46rem; margin: 0 auto; }
nav select { flex: 1; min-width: 0; }
button, select {
  font: inherit; font-size: 1rem; min-height: 3rem; border-radius: .6rem;
  border: 2px solid var(--line); background: var(--card); color: var(--fg); padding: 0 .9rem;
}
button { font-weight: 700; cursor: pointer; }
button:disabled { opacity: .4; cursor: default; }

main { max-width: 46rem; margin: 0 auto; padding: 1rem; }
.where { color: var(--muted); margin: 0 0 .5rem; font-size: .95rem; }
article { background: var(--card); border: 1px solid var(--line); border-radius: 1rem; padding: .5rem 1.25rem 1.25rem; }
section + section { border-top: 1px solid var(--line); margin-top: 1rem; }
h2 { font-size: 1.1rem; color: var(--mark); margin: 1rem 0 .3rem; }
.q { font-size: 1.25rem; font-weight: 700; margin: 0; }
.a p { margin: 0 0 .6rem; font-size: 1.15rem; }
.hint { color: var(--muted); font-size: .9rem; margin: 0 0 .5rem; }
.refs { margin: 0; padding-left: 1.6rem; }
.refs li { margin-bottom: .4rem; }
.refs a {
  display: inline-block; color: var(--link); padding: .2rem .1rem; margin-right: .6rem;
  text-underline-offset: 3px;
}
.none { color: var(--muted); }

.reader {
  position: fixed; left: 0; right: 0; bottom: 0; background: var(--card); border-top: 2px solid var(--line);
  display: flex; align-items: center; justify-content: center; gap: 1rem; padding: .7rem 1rem;
}
#speak { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); min-width: 7rem; }
.cont { display: flex; align-items: center; gap: .4rem; font-size: 1rem; }
.cont input { width: 1.4rem; height: 1.4rem; }