/* 악보 채우기 ♪ — 스토어 제출용 정적 페이지 공통 스타일.
   손그림 감성은 종이 질감과 제목 글꼴로만 내고, 본문은 읽기 쉬운 시스템 글꼴을 쓴다. */

:root {
  --paper: #f8f4e9;
  --ink: #33302b;
  --muted: #6b655c;
  --line: #ded5c2;
  --accent: #4a7fd6;
  --card: #fffdf7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #201e1b;
    --ink: #ece7dd;
    --muted: #a79f92;
    --line: #3c3832;
    --accent: #8ab0f0;
    --card: #282521;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  padding: 0 20px 72px;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Noto Sans KR", "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  word-break: keep-all;
}

.wrap { max-width: 720px; margin: 0 auto; }

header {
  padding: 40px 0 24px;
  border-bottom: 2px solid var(--line);
  margin-bottom: 32px;
}

.brand {
  font-family: "Gaegu", -apple-system, sans-serif;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--muted);
  margin: 0 0 6px;
}

h1 { font-size: 26px; line-height: 1.4; margin: 0 0 10px; }
h2 {
  font-size: 19px;
  margin: 40px 0 12px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
h2:first-of-type { border-top: 0; padding-top: 0; }
h3 { font-size: 16px; margin: 24px 0 8px; }

p, li { color: var(--ink); }
ul { padding-left: 20px; }
li { margin: 6px 0; }

.meta { color: var(--muted); font-size: 14px; margin: 0; }

a { color: var(--accent); }
a:hover { text-decoration: none; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 20px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 15px;
  display: block;
  overflow-x: auto;
}
th, td {
  border: 1px solid var(--line);
  padding: 9px 12px;
  text-align: left;
  vertical-align: top;
}
th { background: var(--card); font-weight: 600; white-space: nowrap; }

.faq { margin: 0 0 4px; }
.faq > summary {
  cursor: pointer;
  padding: 12px 0;
  font-weight: 600;
  border-bottom: 1px solid var(--line);
  list-style: none;
}
.faq > summary::-webkit-details-marker { display: none; }
.faq > summary::before { content: "＋ "; color: var(--muted); }
.faq[open] > summary::before { content: "－ "; }
.faq > div { padding: 4px 0 16px; border-bottom: 1px solid var(--line); }

footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 2px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
footer a { margin-right: 14px; }