/* 투비트 리듬 노트 — 읽을거리 페이지. 게임과 같은 어두운 보라 바탕, 왼손(궁·쿵) 주황 · 오른손(채·덕) 하늘색. */
:root {
  --bg: #120d1f; --panel: #1b1430; --panel-2: #251c40; --line: #372b5c; --text: #f2eefb; --muted: #b6acd8;
  --left: #ff9875; --right: #8fdcff; --gold: #ffe66b; --link: #ffb894;
  --font: system-ui, -apple-system, "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Hiragino Sans", sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.8 var(--font); word-break: keep-all; overflow-wrap: break-word; -webkit-font-smoothing: antialiased; }
:lang(en) body, body:lang(en) { word-break: normal; line-height: 1.7; }
a { color: var(--link); text-underline-offset: 3px; }
a:hover { color: #ffd6c2; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--gold); color: #1a1030; padding: 6px 12px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 12px; }

/* 머리띠 */
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: rgba(18, 13, 31, .88); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 8px; color: var(--text); text-decoration: none; font-weight: 800; white-space: nowrap; }
.brand .logo { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: var(--left); color: #2a1208; font-size: 16px; }
.brand small { color: var(--muted); font-weight: 600; }
.top .spacer { flex: 1; }
.langs { display: flex; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 999px; }
.langs a { padding: 3px 10px; border-radius: 999px; color: var(--muted); text-decoration: none; font-size: 14px; white-space: nowrap; }
.short { display: none; }
.langs a[aria-current="true"] { background: var(--panel-2); color: var(--text); }
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel-2); color: var(--text); font: 700 15px/1.2 var(--font); text-decoration: none; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: var(--left); color: var(--text); }
.btn.primary { background: var(--left); border-color: transparent; color: #2a1208; }
.btn.primary:hover { background: #ffb093; }
.btn.small { padding: 6px 12px; font-size: 14px; }

/* 본문 */
main { max-width: 760px; margin: 0 auto; padding: 18px 16px 64px; }
.crumbs { font-size: 14px; color: var(--muted); margin: 6px 0 22px; }
.crumbs a { color: var(--muted); }
.kicker { margin: 0; color: var(--left); font-weight: 800; letter-spacing: .02em; }
h1 { font-size: clamp(30px, 5.4vw, 42px); line-height: 1.25; letter-spacing: -.02em; margin: 6px 0 14px; }
.lead { font-size: 19px; color: #e4dcfa; margin: 0 0 12px; }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 26px; }
h2 { font-size: clamp(23px, 3.6vw, 28px); line-height: 1.35; margin: 52px 0 14px; padding-top: 14px; border-top: 1px solid var(--line); letter-spacing: -.01em; }
h3 { font-size: 20px; margin: 30px 0 8px; color: #ffd8c6; }
p, ul, ol { margin: 0 0 16px; }
li { margin: 4px 0; }
strong { color: #fff; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: .92em; letter-spacing: .02em; color: var(--gold); }
kbd { font: 700 14px var(--font); padding: 1px 7px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 6px; background: var(--panel-2); }
.toc { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 14px 18px 8px; margin: 0 0 18px; }
.toc strong { display: block; color: var(--muted); font-size: 14px; margin-bottom: 4px; }
.toc ol { margin: 0 0 6px; padding-left: 20px; }
.toc a { color: var(--text); text-decoration: none; }
.toc a:hover { color: var(--link); text-decoration: underline; }

/* 표 */
.table-wrap { overflow-x: auto; margin: 0 0 18px; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 16px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--panel-2); color: #ffd8c6; font-weight: 700; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.g { font-weight: 800; color: var(--gold); white-space: nowrap; }

/* 상자 */
.note, .cta { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; margin: 22px 0; }
.note { border-left: 4px solid var(--right); }
.note p:last-child, .cta p:last-child { margin-bottom: 0; }
.cta { background: linear-gradient(135deg, #2c1a3e, #1d1733); border-color: #5b3d63; }
.cta h2, .cta h3 { margin-top: 0; padding-top: 0; border: 0; }
.cta .actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

/* 장단 그림: 칸 = 소박, 굵은 묶음 = 박 */
figure.rhythm { margin: 22px 0; padding: 14px 14px 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; }
.rhythm-head { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; margin-bottom: 10px; }
.rhythm-head .name { font-weight: 800; font-size: 18px; }
.rhythm-head .sig { color: var(--muted); font-size: 14px; }
.rhythm-head .play { margin-left: auto; }
.rhythm .play[aria-pressed="true"] { background: var(--gold); color: #2a1f00; border-color: transparent; }
.row { display: flex; flex-wrap: wrap; align-items: stretch; gap: 6px; margin: 6px 0; }
.row .who { flex: 0 0 100%; color: var(--muted); font-size: 13px; font-weight: 700; margin-bottom: -2px; }
.beat { display: flex; gap: 2px; padding: 3px; border: 2px solid var(--line); border-radius: 12px; }
.cell { display: grid; place-items: center; min-width: 2.7em; min-height: 2.6em; padding: 2px 4px; border-radius: 8px; background: var(--panel-2); color: #8d83b3; font-weight: 800; font-size: 16px; line-height: 1.1; text-align: center; transition: transform .06s; }
.cell.rest { color: #4c4270; }
.cell.l { background: #4a2a24; color: #ffd0bf; }
.cell.r { background: #1f3a4a; color: #cfefff; }
.cell.b { background: linear-gradient(90deg, #4a2a24 50%, #1f3a4a 50%); color: #fff; }
.cell.acc { box-shadow: inset 0 -3px 0 var(--gold); }
.cell i { display: block; font-style: normal; font-weight: 600; font-size: 11px; color: var(--muted); margin-top: 2px; }
.cell.on { background: var(--gold); color: #2a1f00; transform: scale(1.06); }
.cell.on i { color: #5a4700; }
figure.rhythm figcaption { color: var(--muted); font-size: 15px; margin-top: 8px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; color: var(--muted); font-size: 13px; margin-top: 6px; }
.legend span::before { content: ""; display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
.legend .lg-l::before { background: #4a2a24; } .legend .lg-r::before { background: #1f3a4a; } .legend .lg-acc::before { background: var(--gold); }

/* 허브 카드·다른 글 */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin: 16px 0 8px; }
.card { display: grid; gap: 6px; padding: 16px; border-radius: 16px; background: var(--panel); border: 1px solid var(--line); color: var(--text); text-decoration: none; }
.card:hover { border-color: var(--left); color: var(--text); }
.card .tag { color: var(--left); font-size: 13px; font-weight: 800; }
.card strong { font-size: 18px; line-height: 1.4; }
.card span { color: var(--muted); font-size: 15px; line-height: 1.6; }
.more { margin-top: 56px; }
.more h2 { margin-top: 0; }

.refs ol { font-size: 15px; color: var(--muted); padding-left: 22px; }
.refs li { margin: 6px 0; }
footer { border-top: 1px solid var(--line); padding: 24px 16px 40px; color: var(--muted); font-size: 14px; text-align: center; }
footer a { color: var(--muted); }

@media (max-width: 560px) {
  body { font-size: 16px; }
  .lead { font-size: 17px; }
  /* 좁은 화면: 언어는 KO·EN, 단추는 짧은 이름으로 — 머리띠가 한 줄에 들어가게 */
  .top { gap: 8px; padding: 8px 12px; }
  .brand small { display: none; }
  .top .long { display: none; }
  .top .short { display: inline; }
  .btn { padding: 8px 12px; font-size: 14px; }
  /* 세마치 9칸(3박)이 한 줄에 들어가는 크기 */
  figure.rhythm { padding: 12px 10px 10px; }
  .row { gap: 4px; }
  .cell { min-width: 2em; min-height: 2.5em; font-size: 15px; padding: 2px 3px; }
  .rhythm-head .play { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .cell { transition: none; } .cell.on { transform: none; } }